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INTRODUCTION: Ultrasound changes in the cross-sectional area of the median nerve (CSAmn) could be of interest as biomarkers in patients with amyotrophic lateral sclerosis (ALS). METHODS: Eighty-four ALS patients (51 men [60.7%]; mean 62.0 [SD 11.46] years old) and forty-six controls (27 men [58.7%]; mean 59.9 [SD 8.08] years old) of two different cohorts were recruited between September 2013 and February 2018. The CSAmn was measured bilaterally in each cohort, by two different examiners with two different ultrasound machines (one in each cohort). Its association with clinical variables (disease duration, muscle strength, disability, progression rate and tracheostomy-free survival) was assessed. RESULTS: The CSAmn was smaller in patients than in controls, and the study cohort did not influence its values. A mild correlation between the strength of the wrist flexor and the CSAmn was found. In the multivariable analysis, the probability of this association being true was 90%. In the cox regression, both a faster progression rate and a larger CSAmn independently predicted poor survival (HR=4.29, [Cr.I95%: 2.71-6.80], p<0.001; and HR=1.14, [Cr.I95%: 1.03-1.25], p=0.01), after adjusting by age, body mass index, bulbar onset, and diagnostic delay. CONCLUSIONS: The CSAmn is an easy to assess biomarker that seems reliable and reproducible. Our data also suggest that it could act as a progression and prognostic biomarker in ALS patients. Longitudinal studies with repeated measures are warranted to confirm its usefulness in the clinical practice.

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Introducción: Con el aumento de la prevalencia de obesidad, se esperaría un mayor espesor glúteo, lo que sería un factor importante en futuras intervenciones en región glútea con fines de optimizar mejores resultados estéticos. Objetivo: Correlacionar el índice de masa corporal y el grosor de tejido adiposo en glúteos en voluntarias que acudieron al Servicio de Cirugía Plástica y Reconstructiva del Hospital Dr. Miguel Pérez Carreño entre enero a marzo, 2023. Métodos: El estudio fue prospectivo, descriptivo y de corte transversal. Se utilizó un sonógrafo Sono Eye 1 para realizar las medidas del glúteo. Mediante una báscula, se midió peso y talla, para posteriormente calcular el IMC, fueron 29 voluntarias de sexo femenino entre 18 a 60 años, sin antecedentes quirúrgicos estéticos previos. Las correlaciones fueron evaluadas con el coeficiente de correlación de Pearson. Se consideró un valor significativo si p < 0,05. Los datos fueron tabulados con STATA 17. Resultados: La edad promedio fue 39 ± 12 años. La mayoría con preobesidad (55,2 %). No hubo diferencias estadísticas en grosor de tejido adiposo, de musculo y espesor de glúteo de acuerdo a la lateralidad; de acuerdo al coeficiente de correlación de Pearson, el IMC no hubo asociación con las medidas combinadas del glúteo izquierdo y derecho del grosor de tejido graso (r = 0,137), grosor muscular (r = 0,115) y espesor glúteo (r = 0,193). Conclusión: Los cambios de las medidas antropométricas de acuerdo al índice de masa corporal, no presentaron correlación estadística con el espesor glúteo. (AU)

Introduction: With the increasing prevalence of obesity, a greater gluteal thickness would be expected, which would be an important factor in future interventions in the gluteal region aimed at optimizing better aesthetic outcomes. Objective: To correlate the body mass index (BMI) and the thickness of adipose tissue in the buttocks of volunteers who attended the Plastic and Reconstructive Surgery Service at Dr. Miguel Pérez Carreño Hospital from January to March, 2023. Methods: The study was prospective, descriptive, and cross-sectional. A Sono Eye 1 sonograph was used to measure the gluteal thickness. Using a scale, weight and height were measured to subsequently calculate the BMI; there were 29 female volunteers aged between 18 and 60 years, without previous aesthetic surgical history. Correlations were assessed using Pearson's correlation coefficient. A significant value was considered if p < 0.05. Data were tabulated using STATA 17. Results: The average age was 39 ± 12 years. The majority had pre-obesity (55,2%). There were no statistical differences in adipose tissue thickness, muscle thickness, and gluteal thickness according to laterality; according to Pearson's correlation coefficient, BMI was not associated with combined measurements of left and right buttock adipose tissue thickness (r = 0,137), muscle thickness (r = 0,115), and gluteal thickness (r = 0,193). Conclusion: Changes in anthropometric measurements according to body mass index did not show a statistical correlation with gluteal thickness. (AU)

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Las malformaciones vasculares congénitas afectan con mayor frecuencia al sistema tegumentario y se hacen evidentes al nacer o en las primeras semanas de vida con una prevalencia estimada del 4,5%. Las anomalías linfáticas, suelen tener una presentación variable, y en la mayoría de ocasiones su manejo se convierte en un desafío. Se estima que su incidencia global oscila entre 1 en 2.000 y 1 en 16.0004,5 casos. Objetivo: Determinar la importancia de un adecuado manejo por cirugía vascular en el contexto de un paciente pediátrico con Linfangioma en miembro inferior tomando como metodología la presentación de un caso clínico. Descripción del caso: Paciente de 7 meses de edad sin antecedentes clínicos o quirúrgicos de interés, quien es traído por su madre a consulta de cirugía vascular por presencia de masa en miembro inferior derecho que progresivamente ha mostrado crecimiento, cuadro que se acompaña de tumefacción en partes blandas y roce o dolor a la distensión en la zona de la malformación, de acuerdo a la clasificación de Mulliken y Glowacki se concluye que se trata de un Linfangioma, diagnóstico que se corroboró por ultrasonografía Doppler, Angiotac y flebografía ascendente. Para su manejo se realizó drenaje percutáneo ecoguiado y escleroterapia mediante espuma de polidocanol al 1% para sellar la malformación vascular, obteniendo mejoría clínica con resultados estéticos y funcionales satisfactorios. Conclusión: El Linfangioma es una malformación vascular poco frecuente que no se ha documentado localmente, por lo tanto, la presentación de este caso pretendió proporcionar información científica actualizada sobre el tratamiento de la patología vascular y abogar por un manejo basado en la evidencia médica existente, que contribuya a resultados favorables para los pacientes pediátricos

Congenital vascular malformations most frequently affect the integumentary system and become evident at birth or in the first weeks of life with an estimated prevalence of 4.5%. Lymphatic anomalies usually have a variable presentation, and in most cases their management becomes a challenge. Its global incidence is estimated to range between 1 in 2,000 and 1 in 16,0004.5 cases. Objective: Determine the importance of adequate management by vascular surgery in the context of a pediatric patient with Lymphangioma in the lower limb using the presentation of a clinical case as a methodology. Description of the case: A 7-monthold patient with no clinical or surgical history of interest, who was brought by his mother to a vascular surgery consultation due to the presence of a mass in the right lower limb that has progressively shown growth, a condition that is accompanied by swelling in the soft tissues and friction or pain upon distension in the area of the malformation, according to the classification of Mulliken and Glowacki, it is concluded that it is a Lymphangioma, a diagnosis that was confirmed by Doppler ultrasonography, Angiotac and ascending phlebography. For its management, ultrasound-guided percutaneous drainage and sclerotherapy using 1% polidocanol foam was performed to seal the vascular malformation, obtaining clinical improvement with satisfactory aesthetic and functional results. Conclusion: Lymphangioma is a rare vascular malformation that has not been documented locally, therefore, the presentation of this case aimed to provide updated scientific information on the treatment of vascular pathology and advocate management based on existing medical evidence. that contributes to favorable outcomes for pediatric patients

As malformações vasculares congênitas afetam mais frequentemente o sistema tegumentar e tornam-se evidentes ao nascimento ou nas primeiras semanas de vida, com prevalência estimada em 4,5%. As anomalias linfáticas costumam ter apresentação variável e na maioria dos casos seu manejo torna-se um desafio. Estima-se que sua incidência global varie entre 1 em 2.000 e 1 em 16.0004,5 casos. Objetivo: Determinar a importância do manejo adequado por cirurgia vascular no contexto de um paciente pediátrico com Linfangioma em membro inferior utilizando como metodologia a apresentação de um caso clínico. Descrição do caso: Paciente de 7 meses, sem antecedentes clínicos ou cirúrgicos de interesse, que foi trazido pela mãe à consulta de cirurgia vascular devido à presença de uma massa no membro inferior direito que apresentava crescimento progressivo, quadro que vem acompanhado de inchaço nos tecidos moles e fricção ou dor à distensão na área da malformação, segundo a classificação de Mulliken e Glowacki, conclui-se que se trata de um Linfangioma, diagnóstico que foi confirmado por Ultrassonografia Doppler, Angiotac e flebografia ascendente. Para seu manejo foi realizada drenagem percutânea guiada por ultrassom e escleroterapia com espuma de polidocanol a 1% para selar a malformação vascular, obtendo melhora clínica com resultados estéticos e funcionais satisfatórios. Conclusão: O linfangioma é uma malformação vascular rara e não documentada localmente, portanto, a apresentação deste caso teve como objetivo fornecer informação científica atualizada sobre o tratamento da patologia vascular e defender uma gestão baseada na evidência médica existente que contribua para resultados favoráveis para a pediatria. pacientes

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Las malformaciones vasculares congénitas afectan con mayor frecuencia al sistema tegumentario y se hacen evidentes al nacer o en las primeras semanas de vida con una prevalencia estimada del 4,5%. Las anomalías linfáticas, suelen tener una presentación variable, y en la mayoría de ocasiones su manejo se convierte en un desafío. Se estima que su incidencia global oscila entre 1 en 2.000 y 1 en 16.0004,5 casos. Objetivo: Determinar la importancia de un adecuado manejo por cirugía vascular en el contexto de un paciente pediátrico con Linfangioma en miembro inferior tomando como metodología la presentación de un caso clínico. Descripción del caso: Paciente de 7 meses de edad sin antecedentes clínicos o quirúrgicos de interés, quien es traído por su madre a consulta de cirugía vascular por presencia de masa en miembro inferior derecho que progresivamente ha mostrado crecimiento, cuadro que se acompaña de tumefacción en partes blandas y roce o dolor a la distensión en la zona de la malformación, de acuerdo a la clasificación de Mulliken y Glowacki se concluye que se trata de un Linfangioma, diagnóstico que se corroboró por ultrasonografía Doppler, Angiotac y flebografía ascendente. Para su manejo se realizó drenaje percutáneo ecoguiado y escleroterapia mediante espuma de polidocanol al 1% para sellar la malformación vascular, obteniendo mejoría clínica con resultados estéticos y funcionales satisfactorios. Conclusión: El Linfangioma es una malformación vascular poco frecuente que no se ha documentado localmente, por lo tanto, la presentación de este caso pretendió proporcionar información científica actualizada sobre el tratamiento de la patología vascular y abogar por un manejo basado en la evidencia médica existente, que contribuya a resultados favorables para los pacientes pediátricos.

Congenital vascular malformations most frequently affect the integumentary system and become evident at birth or in the first weeks of life with an estimated prevalence of 4.5%. Lymphatic anomalies usually have a variable presentation, and in most cases their management becomes a challenge. Its global incidence is estimated to range between 1 in 2,000 and 1 in 16,0004.5 cases. Objective: Determine the importance of adequate management by vascular surgery in the context of a pediatric patient with Lymphangioma in the lower limb using the presentation of a clinical case as a methodology. Description of the case: A 7-month-old patient with no clinical or surgical history of interest, who was brought by his mother to a vascular surgery consultation due to the presence of a mass in the right lower limb that has progressively shown growth, a condition that is accompanied by swelling in the soft tissues and friction or pain upon distension in the area of the malformation, according to the classification of Mulliken and Glowacki, it is concluded that it is a Lymphangioma, a diagnosis that was confirmed by Doppler ultrasonography, Angiotac and ascending phlebography. For its management, ultrasound-guided percutaneous drainage and sclerotherapy using 1% polidocanol foam was performed to seal the vascular malformation, obtaining clinical improvement with satisfactory aesthetic and functional results. Conclusion: Lymphangioma is a rare vascular malformation that has not been documented locally, therefore, the presentation of this case aimed to provide updated scientific information on the treatment of vascular pathology and advocate management based on existing medical evidence. that contributes to favorable outcomes for pediatric patients.

As malformações vasculares congênitas afetam mais frequentemente o sistema tegumentar e tornam-se evidentes ao nascimento ou nas primeiras semanas de vida, com prevalência estimada em 4,5%. As anomalias linfáticas costumam ter apresentação variável e na maioria dos casos seu manejo torna-se um desafio. Estima-se que sua incidência global varie entre 1 em 2.000 e 1 em 16.0004,5 casos. Objetivo: Determinar a importância do manejo adequado por cirurgia vascular no contexto de um paciente pediátrico com Linfangioma em membro inferior utilizando como metodologia a apresentação de um caso clínico. Descrição do caso: Paciente de 7 meses, sem antecedentes clínicos ou cirúrgicos de interesse, que foi trazido pela mãe à consulta de cirurgia vascular devido à presença de uma massa no membro inferior direito que apresentava crescimento progressivo, quadro que vem acompanhado de inchaço nos tecidos moles e fricção ou dor à distensão na área da malformação, segundo a classificação de Mulliken e Glowacki, conclui-se que se trata de um Linfangioma, diagnóstico que foi confirmado por Ultrassonografia Doppler, Angiotac e flebografia ascendente. Para seu manejo foi realizada drenagem percutânea guiada por ultrassom e escleroterapia com espuma de polidocanol a 1% para selar a malformação vascular, obtendo melhora clínica com resultados estéticos e funcionais satisfatórios. Conclusão: O linfangioma é uma malformação vascular rara e não documentada localmente, portanto, a apresentação deste caso teve como objetivo fornecer informação científica atualizada sobre o tratamento da patologia vascular e defender uma gestão baseada na evidência médica existente que contribua para resultados favoráveis para a pediatria. pacientes.

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INTRODUCTION AND OBJECTIVES: Functional and durable vascular access is needed for adequate hemodialysis. Arteriovenous fistula is preferred over prosthetic grafts or central venous catheters, but it is associated with high rates of primary failure and maturation failure. Preoperative mapping of arm vessels with color Doppler ultrasound (CDU) has been shown to be helpful in achieving better short and long-term outcomes. Unfortunately, is more time-consuming than a physical examination and requires an experienced examiner and special equipment; some authors defend that CDU should not be part of the routine preoperative assessment. We reported our experience in preoperative vessel mapping using color Doppler ultrasound to purpose a vascular access to the surgical team, surveillance of vascular access, and evaluation of main outcomes (primary failure, maturation failure, and patency). METHODS: This is a single-center retrospective study that includes patients who attended a specific appointment for vascular access planning consultation between January 2019 and December 2021. A nephrologist performed the physical exam and vascular mapping and proposed to the vascular surgeon team a specific type and location of vascular access. Patients were followed until one month after the first hemodialysis through functioning vascular access. RESULTS: In this study, 167 patients were evaluated (114 incident patients - chronic kidney disease stage 4 or 5 - and 53 prevalent patients - under hemodialysis through central venous catheter). The vascular accesses proposed by nephrologist were radial-cephalic arteriovenous fistula in 70 patients (41.9%), brachio-cephalic arteriovenous fistula in 50 patients (29.9%), brachio-basilic arteriovenous fistula in 34 patients (20.4%), arteriovenous graft in 8 patients (4.8%) and central venous catheter in 2 patients (1.2%). Vascular access was constructed in 141 patients: distal arteriovenous fistula in 57 patients (40.4%), brachio-cephalic arteriovenous fistula in 54 patients (38.3%), brachio-basilic AVF in 27 patients (19.1%), and arteriovenous graft in 3 patients (2.1%). The created access corresponds to the proposed access in 129 patients (91.5%). Twenty-two (15.6%) primary failures were registered. Distal arteriovenous fistulas and diabetes mellitus were associated with a higher risk of primary failure (OR=3.929 (1.485-10.392), p=0.004; OR=3.867 (1.235-12.113), p=0.014, respectively). The incidence of maturation failure at eight weeks was 4.8%. The primary patency at 6, 12 and 24 months was 76.3%, 70.4% and 49.2%. Primary assisted patency was 84.8% at 6 and 12 months and 81.3% at 24 months. CONCLUSIONS: This study demonstrates that the study of the entire vascular territory performed with color Doppler ultrasound, within a multidisciplinary team of nephrologists and vascular surgeons, is associated with high rates of autologous access and very low rates of primary failure and maturation failure (almost unprecedented in the literature).

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INTRODUCTION: Transbronchial needle aspiration guided by endobronchial ultrasonography (EBUSTBNA) has the disadvantage of sometimes offering samples of an unsuitable size for an accurate histo-molecular diagnosis. Transbronchial mediastinal cryobiopsy (CRYOEBUS) is a very novel and additional technique to EBUS-TBNA that allows us to obtain larger and quality samples, improving diagnostic performance. MATERIAL AND METHODS: Descriptive study of 110 patients with lesions and/or mediastinal lymphadenopathy who underwent EBUS-TBNA and CRYO-EBUS in a single procedure. Our objective was to analyze the diagnostic profitability and safety of the technique. RESULTS: CRYO-EBUS obtained samples of 0.42cm on average compared to 0.14cm obtained by EBUS-TBNA. The overall diagnostic performance of the techniques was 60% for EBUS-TBNA and 94.5% for CRYO-EBUS. Furthermore, the latter was more sensitive for the diagnosis of both malignant and benign diseases. With a very high security profile. CONCLUSIONS: The CRYO-EBUS technique is cost-effective and safe, and is superior to EBUS-TBNA. Future studies may confirm our findings.

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INTRODUCTION: Transfontanellar brain ultrasound is an essential tool for monitoring the size of the ventricles in preterm neonates and has many advantages over other alternative diagnostic techniques, including its accessibility and non-use of ionizing radiation. When considering the normal ventricular size, it is essential to have reference measurements based on age-matched populations. The objective of this article is to present our reference measures, based on a sample of preterm infants that we have studied. METHODS: A retrospective observational study was conducted. Measurements of the Levene index, frontal horn thickness, and Evans index were obtained in preterm neonates from 25 to 45 weeks, over a period of 5 years, between January 2016 and December 2020. After applying the exclusion criteria, a sample of 199 patients and 350 ultrasound scans were obtained. The independent samples t-test and the Mann-Whitney test were used for the comparison of samples. RESULTS: The distribution of the right and left Levene indices was normal (Shapiro-Wilk test with p = 0.16 and 0.05, respectively), unlike the thickness distribution of the frontal horns (p < 0.05 on both sides). No significant differences were detected between the sexes (p = 0.08). A linear correlation was found between the biparietal diameter and the Levene index. CONCLUSION: From the results obtained in our study, we present reference tables for ventricular size, with the 3rd, 25th, 50th, 75th, and 97th, being the first ones made in our country.

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OBJECTIVES: Evaluate associations between triceps braqui muscle ultrasound measures (TB US) and handgrip strength (HGS), and the sensibility of TB US for low HGS in non-dialysis-dependent chronic kidney disease (nd-CKD) patients. PARTICIPANTS AND METHODS: This pilot, cross-sectional, and exploratory study evaluated TB cross-sectional images from A-mode US and processed by FIJI-Image J to obtain muscle thickness (MT), echogenicity (EI), cross-sectional area (CSA), pennation angle (PA), and fascicle length (Lf) associating them with absolute HGS by simple and, multiple linear regression. The HGS was normalized to body mass index (BMI) and separated into low HGS (HGS/BMI≤10p according to sex and age) and adequate HGS (HGS/BMI>10p) groups. The body composition was from multifrequency bioimpedance. ROC analysis verified the TB US diagnostic accuracy to low HGS. RESULTS: Were included 42 (21M/21F) adults with 65.5 (60-70) y median age, 47.22% in 3b CKD stage. The low HGS group (45.23%) showed a higher fat mass (FM), TB muscle medium head's PA, and EI than adequate HGS (p<0.05). In crude model, a pixels increase in EI was associated with a 0.452kgf HGS reduction (p=0.019); adjusted for sex, age, and FM, a one-unit increase in EI was associated with a 0.510kgf HGS reduction (p=0.011). The EI also showed moderate diagnostic accuracy (AUC=0.730; CI 95%=0.589; 0.919) to low HGS and a sensitivity of 86.9% (cutoff≥13.52 pixels). CONCLUSION: In nd-CKD patients, of all measurements from US, the EI was the most associated with HGS, and the only one sensitive to low HGS diagnosis.

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Introducción: El amniocele es una hernia del saco amniótico a través de un defecto en la pared del útero, el cual puede deberse a ruptura uterina, secundario a daños preexistentes, anomalías uterinas o en un útero sin cicatrices. Caso clínico: Presentamos el caso de una paciente de 37 años, con antecedente de dos partos por cesárea, a quien en la semana 25,5 de embarazo se le diagnostica por ecografía amniocele en la pared anterior de útero contenido por la vejiga, además de signos ecográficos de acretismo placentario. La posterior realización de resonancia magnética confirma el diagnóstico. Se realiza manejo expectante con estancia continua intrahospitalaria estricta. Resolución obstétrica a las 34 semanas por cesárea, con extracción fetal por fondo uterino sin complicaciones, con posterior realización de histerectomía con placenta in situ. Conclusiones: Este reporte de caso ilustra la importancia de la identificación temprana de esta condición por ser una complicación infrecuente, pero de grave pronóstico fetomaterno en ausencia de atención inmediata.

Introduction: Amniocele is a hernia of the amniotic sac through a defect in the uterine wall, which can be caused by uterine rupture secondary to preexisting damage, uterine anomalies, or a scarless uterus. Case report: We present a case of a 37-year-old patient with a history of two previous cesarean deliveries. At 25.5 weeks of gestation, the diagnosis of amniocele in the anterior uterine wall, contained by the bladder, along with ultrasound signs of placenta accreta, was confirmed through ultrasound. Subsequent magnetic resonance imaging further confirmed the diagnosis. Expectant management with strict continuous intrahospital stay was implemented. Obstetric resolution was achieved at 34 weeks through cesarean delivery, with uncomplicated fetal extraction through the uterine fundus. Subsequently, a hysterectomy was performed with the placenta left in situ. Conclusions: This case report illustrates the importance of early identification of this condition due to its infrequent but serious feto-maternal prognosis in the absence of immediate attention.

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La ultrasonografía transcraneal es una técnica no invasiva y disponible a pie de cama que se ha convertido en una herramienta accesible y consolidada en la evaluación y el manejo clínico de los pacientes neurocríticos. Se trata de una técnica en continuo crecimiento cuyos fundamentos (y sus limitaciones) deben ser conocidos por el intensivista. Esta revisión aporta un enfoque práctico para el intensivista, incluyendo las diferentes ventanas y planos de insonación y su papel en la patología específica propia de los pacientes neurocríticos y en los pacientes críticos de otras etiologías. (AU)

Transcranial ultrasonography is a non-invasive, bedside technique that has become a widely implemented tool in the evaluation and management of neurocritically ill patients. It constitutes a technique in continuous growth whose fundamentals (and limitations) must be known by the intensivist. This review provides a practical approach for the intensivist, including the different sonographic windows and planes of insonation and its role in different conditions of the neurocritical patients and in critical care patients of other etiologies. (AU)

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El síndrome del túnel del carpo (STC) es la mononeuropatía por atrapamiento más frecuente; el diagnóstico se establece mediante pruebas electrodiagnósticas con un número sustancial de falsos positivos/negativos. Presentamos la siguiente revisión sistemática, cuyo objetivo es analizar la literatura más reciente en relación con los parámetros ecográficos descritos para estudiar el STC. Seleccionamos estudios que evaluasen parámetros ecográficos en pacientes con sospecha clínica, siguiendo las recomendaciones del manual Cochrane; incluimos revisiones sistemáticas, metaanálisis, estudios caso-control y de pruebas diagnósticas, valorando estudios retrospectivos y revisiones bibliográficas con buena calidad metodológica. La revisión se hizo de artículos publicados entre 2005-2019. Incluimos 8 artículos (2 revisiones sistemáticas/metaanálisis, 2 estudios caso-control, un estudio de pruebas diagnósticas, 2 revisiones literarias y un estudio retrospectivo). Los parámetros analizados fueron el área de sección transversa del nervio mediano, el índice muñeca-antebrazo, el índice entrada-salida, el rango de adelgazamiento del nervio mediano, el abombamiento del retináculo flexor y la vascularización/movilidad. La evidencia actual permite afirmar que la ecografía tiene utilidad en el cribado del STC.(AU)

Carpal tunnel syndrome (CTS) is the most common entrapment mononeuropathy; the diagnosis is established by electrodiagnostic tests with until 34% of false positives/negatives. We present the following systematic review which objective is to analyze the most recent literature related to the ultrasound parameters described to study CTS. We selected studies that evaluated ultrasound parameters in patients with clinical suspicion following the Cochrane manual's recommendations. We include systematic reviews, meta-analyses, case–control studies and diagnostic tests, evaluating retrospective studies and bibliographic reviews with proper methodological quality. Articles published between 2005 and 2019. We included eight articles (two systematic reviews/meta-analyses, two case–control studies, one diagnostic test study, two literature reviews, and one retrospective). The parameters analyzed were cross-sectional area, wrist–forearm index, entry–exit index, thinning range, palmar bowing of the flexor retinaculum, and vascularity/mobility. Current evidence allows us to affirm that ultrasound is useful in screening for CTS.(AU)

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Transcranial ultrasonography is a non-invasive, bedside technique that has become a widely implemented tool in the evaluation and management of neurocritically ill patients. It constitutes a technique in continuous growth whose fundamentals (and limitations) must be known by the intensivist. This review provides a practical approach for the intensivist, including the different sonographic windows and planes of insonation and its role in different conditions of the neurocritical patients and in critical care patients of other etiologies.

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Fundamento: La ultrasonografía del diámetro de la vaina del nervio óptico ha sido utilizada como medidor no invasivo de la presión intracraneal. Una de las deficiencias enunciadas resulta, la no existencia de un valor estándar, que sugiera el límite entre la normalidad y la hipertensión intracraneal. Objetivo: Determinar el diámetro de la vaina del nervio óptico mediante ecografía en voluntarios sanos. Métodos: Se realizó un estudio ecológico de poblaciones múltiples en 160 voluntarios sanos que cumplieron con los criterios de inclusión. Se realizaron 3 mediciones ultrasonográficas en modo B en cada ojo, se tomó como valor final el promedio. Las variables estudiadas fueron: edad, sexo, color de la piel y diámetro de la vaina del nervio óptico. Se calculó el porcentaje, media, mediana, límite y estándar. Con un valor de referencia al 95 % del intervalo de confianza. La relación entre las variables se determinó mediante análisis de regresión logística simple con el paquete estadístico de SPSS 22.0. Resultados: El diámetro de la vaina del nervio óptico, en los sujetos, se cuantificó entre 4,62 - 4,80 mm y 4,66 - 4,83 mm para los ojos derecho e izquierdo respectivamente. Al análisis de regresión lineal simple, solo el sexo se asoció al valor del diámetro de la vaina del nervio óptico (p= 0,000). Conclusiones: En una población de voluntarios sanos el valor del diámetro de la vaina del nervio óptico fue similar a otras descripciones, con diferencias entre el sexo, lo cual sugiere tomar en consideración esta variable al hacer la medición.

Foundation: Ultrasonography of the diameter of the optic nerve sheath has been used as a non-invasive measure of intracranial pressure. One of the deficiencies stated is the non-existence of a standard value that suggests the limit between normality and intracranial hypertension. Objective: Determine the diameter of the optic nerve sheath using ultrasound in healthy volunteers. Methods: A multi-population ecological study was conducted on 160 healthy volunteers who met the inclusion criteria. Three ultrasonographic measurements were performed in B mode in each eye, the average was taken as the final value. The variables studied were: age, sex, skin color and diameter of the optic nerve sheath. The percentage, mean, median, limit and standard were calculated. With a reference value at the 95% confidence interval. The relationship between the variables was determined by simple logistic regression analysis with the SPSS 22.0 statistical package. Results: That diameter of the optic nerve sheath, in the subjects, was quantified between 4.62 - 4.80 mm and 4.66 - 4.83 mm for the right and left eyes respectively. In the simple linear regression analysis, only sex was associated with the value of the diameter of the optic nerve sheath (p= 0.000). Conclusions: In a population of healthy volunteers, the value of the diameter of the optic nerve sheath was similar to other descriptions, with differences between sex, which suggests taking this variable into consideration when making the measurement.

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Introducción: Durante el embarazo varios factores pueden interactuar sobre el organismo en formación. Parte de los cuidados prenatales se centran en detectar desviaciones del crecimiento fetal. Objetivo: Describir las variables biométricas fetales primarias y la asociación de las enfermedades maternas con la condición trófica del recién nacido. Método: Se realizó un estudio cuantitativo, observacional, analítico y retrospectivo, con una población de 5432 y una muestra de 4131 gestantes, seleccionada por muestreo no probabilístico, intencional, por criterios. Los datos fueron obtenidos del registro de consultas de genética desde enero de 2013 hasta octubre de 2018. Para el análisis estadístico se utilizó el test de Kruskal Wallis, la prueba post hoc de Dunn-Bonferroni, ji cuadrado y V de Cramer. Resultados: Prevaleció el incremento de las medianas de las variables biométricas, según la condición trófica y semana gestacional, predominó la significación estadística, al igual que las diferencias significativas en todos los contrastes dos a dos realizados. Las gestantes de peso adecuado preponderaron en cada condición al nacer, los recién nacidos pequeños se relacionaron con los trastornos hipertensivos durante el embarazo, la sepsis vaginal y la diabetes mellitus mientras que los recién nacidos grandes predominaron en madres con la glucemia alterada y anemia. Conclusiones: Las mediciones biométricas y las fórmulas de estimación del peso fetal pueden advertir las desviaciones del crecimiento fetal y la condición trófica al nacer. Las variables maternas se relacionaron con la condición trófica del recién nacido.

Introduction: During pregnancy several factors can interact on the developing organism. Part of prenatal care focuses on detecting deviations in fetal growth. Objective: Describe the primary fetal biometric variables and the association of maternal diseases with the trophic condition of the newborn. Method: A quantitative, observational, analytical and retrospective study was carried out, with a population of 5432 and a sample of 4131 pregnant women, selected by non-probabilistic, intentional sampling, by criteria. The data were obtained from the registry of genetic consultations from January 2013 to October 2018. For statistical analysis, the Kruskal Wallis test, the Dunn-Bonferroni post hoc test, chi-square and Cramer's V were used. Results: The increase in the medians of the biometric variables prevailed, according to the trophic condition and gestational week, the statistical significance predominated, as did the significant differences in all the two-to-two contrasts carried out. Pregnant women of adequate weight predominated in each condition at birth, small newborns were related to hypertensive disorders during pregnancy, vaginal sepsis and diabetes mellitus, while large newborns predominated in mothers with altered glycemia and anemia. Conclusions: Biometric measurements and fetal weight estimation formulas can warn of deviations in fetal growth and trophic condition at birth. Maternal variables were related to the trophic condition of the newborn.

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Antecedentes y objetivo: Determinar las características operativas de la ecografía de glándula salival (EGS) en el diagnóstico del síndrome de Sjögren (SS) en una población de pacientes colombianos con síntomas secos. Materiales y métodos: Estudio de pruebas diagnósticas en pacientes con síntomas secos que asistieron a la consulta de reumatología (2018-2020). Se obtuvieron datos sociodemográficos y clínicos a través de una encuesta, pruebas paraclínicas, oftalmológicas, biopsia de glándula salival menor, flujo salival no estimulado y EGS (puntuación 0-6 basada en De Vita). Se calcularon la sensibilidad, la especificidad y los valores predictivos positivo (VPP) y negativo (VPN) (Stata 15®). Se desarrolló la curva de características operativas del receptor (COR). Resultados: Se incluyó a 102 pacientes (34 con SS y 68 sin SS), edad media ± desviación estándar de 55,69 ± 11,93 años, 94% mujeres. La ecografía positiva (puntuación de 2 o más) fue más frecuente en el grupo de SS, (70,6% vs. 22,1%, p < 0,0001). La sensibilidad fue igual para el grado 2 y 3 (70,59%), con una especificidad mayor (89,71%) para el grado 3 (VPP 77,42% VPN 85,92). La curva COR a partir de la sumatoria de las glándulas por medio de ecografía, fue mejor que las de las glándulas independientes. La curva COR de la ecografía presentó una mayor área bajo la curva (0,72 [0,61-0,82]) que la del análisis histológico (puntuación por focos) (0,68 [0,59-0,78]), p = 0,0252. Conclusión: La EGS es un método útil y confiable para la clasificación del SS. Se podría plantear su uso futuro dentro de los criterios clasificatorios del SS.(AU)

Background and objective: To determine the operational characteristics of salivary gland ultrasound (SGU) in the diagnosis of Sjögren's syndrome (SS) in a population of colombian patients with dry symptoms. Materials and methods: Study of diagnostic tests in patients with dry symptoms who consecutively attended the rheumatology consultation (2018-2020). Sociodemographic and clinical data were obtained through a survey, paraclinical and ophthalmological tests, minor salivary gland biopsy, unstimulated salivary flow and SGU (score 0-6 based on De Vita) were done. Sensitivity, specificity, positive (PPV) and negative (NPV) predictive values (Stata 15®) were calculated. The receiver operating characteristics (ROC) curve was developed. Results: 102 patients were included (34 SS and 68 non-SS), mean age 55.69 (± 11.93) years, 94% women. Positive ultrasound (score of 2 or more) was more frequent in the SS group, (70.6% vs. 22.1%, P<.0001). The sensitivity was the same for grade 2 and 3 (70.59%), with a higher specificity (89.71%) for grade 3 (PPV 77.42% NPV 85.92). The ROC curve from the sum of the glands by means of ultrasound was better than those of the independent glands. The ROC curve of the ultrasound presented a greater area under the curve (0.72 [0.61-0.82]) than that of the histological analysis (focus score) (0.68 [0.59-0.78]), P=.0252. Conclusion: Salivary gland ultrasound is a useful and reliable method for the classification of SS. Its use could be considered in the future within the SS classification criteria.

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OBJECTIVE: To determine the precision and accuracy of intraoral sonography in assessing the depth of invasion in oral cancer. MATERIAL AND METHODS: A prospective study was conducted in 30 cases of oral cancer. Subjects were subjected to computerised tomography and intraoral sonography before surgery. The depth of invasion assessed through clinical palpation and radiological tools was compared with surgical histopathology. RESULTS: The depth of invasion assessed on clinical palpation and computerized tomography had statistically significant difference with histopathology whereas intraoral sonography didn't show any difference. The intraoral sonography and computerised tomography had comparable precision and accuracy, with a slight dominance of the computerised tomography in assessing the tumor's depth of invasion greater than 4 mm. However, intraoral sonography was more precise and accurate than computerised tomography in assessing the depth of invasion beyond 10 mm. CONCLUSION: Intraoral sonography was found to be a reliable tool in the assessment of the depth of invasion in oral cancer. It can prove beneficial during surgery in achieving tumour-free surgical margins.

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BACKGROUND AND OBJECTIVE: To determine the operational characteristics of salivary gland ultrasound (SGU) in the diagnosis of Sjögren's syndrome (SS) in a population of colombian patients with dry symptoms. MATERIALS AND METHODS: Study of diagnostic tests in patients with dry symptoms who consecutively attended the rheumatology consultation (2018-2020). Sociodemographic and clinical data were obtained through a survey, paraclinical and ophthalmological tests, minor salivary gland biopsy, unstimulated salivary flow and SGU (score 0-6 based on De Vita) were done. Sensitivity, specificity, positive (PPV) and negative (NPV) predictive values (Stata 15®) were calculated. The receiver operating characteristics (ROC) curve was developed. RESULTS: 102 patients were included (34 SS and 68 non-SS), mean age 55.69 (±11.93) years, 94% women. Positive ultrasound (score of 2 or more) was more frequent in the SS group, (70.6% vs. 22.1%, P<0.0001). The sensitivity was the same for grade 2 and 3 (70.59%), with a higher specificity (89.71%) for grade 3 (PPV 77.42% NPV 85.92). The ROC curve from the sum of the glands by means of ultrasound was better than those of the independent glands. The ROC curve of the ultrasound presented a greater area under the curve (0.72 [0.61-0.82]) than that of the histological analysis (focus score) (0.68 [0.59-0.78]), P=0.0252. CONCLUSION: Salivary gland ultrasound is a useful and reliable method for the classification of SS. Its use could be considered in the future within the SS classification criteria.

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Introducción. El aneurisma de la aorta abdominal (AAA) es la dilatación de la aorta abdominal mayor de 1,5 veces el diámetro esperado. Su prevalencia es variable, con tasas reportadas de hasta el 12,5 %. Se considera como causa de muerte de más de 10.000 personas al año en los Estados Unidos. El objetivo de esta revisión de la literatura fue describir los factores de riesgo y las herramientas de tamizaje de AAA. Métodos. Se realizó una búsqueda de la literatura utilizando dos ecuaciones en bases de datos electrónicas, empleando términos seleccionados de "Medical Subject Heading" (MeSH) y "Descriptores en Ciencias de la Salud" (DeCS). Se evaluó la calidad de los estudios con la herramienta STROBE (Strengthening the Reporting of Observational Studies in Epidemiology). Resultados. Se recolectaron 40 artículos y a partir de ellos se construyó el texto de revisión, identificando en estos, los factores de riesgo asociados al desarrollo de AAA, tales como sexo masculino, tabaquismo, hipertensión arterial, antecedente familiar y obesidad, entre otros. La diabetes mellitus parece actuar como factor protector. Dentro de los instrumentos de tamizaje, el ultrasonido abdominal es uno de los más usados. Conclusión. El AAA es una patología multifactorial. En la actualidad la ultrasonografía de aorta es el método de elección para el tamizaje, permitiendo la detección precoz. El tamizaje de AAA con métodos no invasivos, como el ultrasonido, es útil sobre todo en zonas con prevalencia alta de la patología y en pacientes con determinados factores de riesgo.

Introduction. Abdominal aortic aneurysm (AAA) is a dilation of the abdominal aorta greater than 1.5 times the expected diameter. Its prevalence is variable, with reported rates of up to 12.5%. It is considered the cause of death of more than 10,000 people a year in the United States. The objective of this literature review was to describe risk factors and screening tools for AAA. Methods. A literature search was conducted using two equations in electronic databases, using terms selected from "Medical Subject Heading" (MeSH) and "Descriptors in Health Sciences" (DeCS). The quality of the studies was evaluated with the STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) tool. Results. Forty articles were collected and from them the review text was constructed, identifying the risk factors associated with the development of AAA, such as male sex, smoking, high blood pressure, family history and obesity, among others. Diabetes mellitus seems to act as a protective factor. Among the screening instruments, abdominal ultrasound is one of the most used. Conclusion. AAA is a multifactorial pathology. Currently, aortic ultrasonography is the method of choice for screening, allowing early detection. Screening for AAA with non-invasive methods, such as ultrasound, is useful especially in areas with a high prevalence of this pathology and in patients with certain risk factors.

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SUMMARY: This paper's aim is a morphometric evaluation of liver and portal vein morphometry using ultrasonography in healthy Turkish population. This study was carried out with 189 subjects (107 females, 82 males). The demographic data and the body surface area were calculated. The longitudinal axis of the liver for two lobes, diagonal axis or liver span, anteroposterior diameter of the liver and portal vein, portal vein transverse diameter, caudate lobe anteroposterior diameter, and portal vein internal diameters as well as longitudinal liver scans in an aortic plane, sagittal plane, transverse plane, and kidney axis were measured. All measurements were analyzed according to age, sex, body mass index, obesity and alcohol consumption. The mean values of the age, height, weight and body mass index were calculated as 44.39 years, 167.05 cm, 74.23 kg, and 27.06kg/m2 in females, respectively. The same values were 44.13 years, 167.70 cm, 75.93 kg and 26.71 kg/m2 in males, respectively. There was significant difference between demographic characteristics, gender, and alcohol consumption in terms of anteroposterior diameter of the liver, portal vein transverse diameter of the right side and liver transverse scan. Also, some measurements including portal vein transverse diameter, liver transverse scan and at kidney axis longitudinal scan of liver showed significant difference between the age groups. There was significant difference in diagonal axis and anteroposterior diameter of liver, portal vein internal diameter, and longitudinal liver scans of the aortic plane parameters between obesity situation. The findings obtained will provide important and useful reference values as it may determine some abnormalities related liver diseases. Also, age, sex, obesity and body mass index values can be effective in the liver and portal vein morphometry related parameters.

El objetivo de este artículo fue realizar una evaluación de la morfometría del hígado y la vena porta mediante ecografía en una población turca sana. Este estudio se llevó a cabo en 189 sujetos (107 mujeres, 82 hombres). Se calcularon los datos demográficos y la superficie corporal. Se midió eleje longitudinal del de dos lóbulos del hígado, el eje diagonal o la extensión del hígado, los diámetros anteroposterior del hígado y de la vena porta, el diámetro transversal de la vena porta, anteroposterior del lóbulo caudado y los diámetros internos de la vena porta, así como las exploraciones longitudinales del hígado en un plano aórtico. Se midieron el plano sagital, el plano transversal y el eje del riñón. Todas las mediciones se analizaron según edad, sexo, índice de masa corporal, obesidad y consumo de alcohol. Los valores medios de edad, talla, peso e índice de masa corporal se calcularon como 44,39 años, 167,05 cm, 74,23 kg y 27,06 kg/m2 en las mujeres, respectivamente. Las mismas variable fueron 44,13 años, 167,70 cm, 75,93 kg y 26,71 kg/m2. Hubo diferencias significativas entre las características demográficas, el sexo y el consumo de alcohol en términos de diámetro anteroposterior del hígado, diámetro transversal de la vena porta del lado derecho y exploración transversal del hígado. Además, algunas mediciones, incluido el diámetro transversal de la vena porta, la exploración transversal del hígado y la exploración longitudinal del hígado en el eje del riñón, mostraron diferencias significativas entre los grupos de edad. Hubo diferencias significativas en el eje diagonal y el diámetro anteroposterior del hígado, el diámetro interno de la vena porta y los parámetros de las exploraciones hepáticas longitudinales del plano aórtico entre situaciones de obesidad. Los hallazgos obtenidos proporcionarán valores de referencia importantes y útiles ya que pueden determinar algunas anomalías relacionadas con enfermedades hepáticas. Además, los valores de edad, sexo, obesidad e índice de masa corporal pueden ser eficaces en los parámetros relacionados con la morfometría del hígado y la vena porta.

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Objective: To describe the results of the investigation of urinary retention in patients in post-anesthesia recovery using ultrasonography. Method: This is a descriptive observational study in which the bladder content of patients in the post-anesthesia recovery room was estimated using ultrasonogra-phy to detect urinary retention. Twenty adult and aged patients with one hour of stay in the post-anesthesia recovery room of a large university hospital in Northeast Brazil were included between June and October 2022. Results: The urinary volume measured through this imaging exam had a mean of 588.3±327.6 mL, ranging from 80 to 1,275.4 mL. Urinary retention was identified in 45% of cases in this series, although only the complaint of pain asso-ciated with the need to urinate was a statistically significant indicative symptom of retention. There was no statistically significant difference between genders, and it was not possible to observe the influence of opioid use on urinary retention. Conclusion: Perioperative nurses should seek training for advanced techniques, including the use of ultrasonography, to assist in their practice. (AU)

Objetivo: Describir los resultados de la investigación sobre retención urinaria en pacientes en recuperación anestésica utilizando ultrasono-grafía. Método: Se trata de un estudio observacional descriptivo, en el cual se estimó el contenido vesical de pacientes en la sala de recuperación posta-nestésica mediante ultrasonografía para detectar retención urinaria. Se incluyeron 20 pacientes adultos y ancianos con una hora de permanencia en la sala de recuperación postanestésica de un hospital universitario de gran tamaño en el noreste de Brasil, entre junio y octubre de 2022. Resultados: El volumen urinario medido mediante este examen de imagen tuvo un promedio de 588,3±327,6 mL, variando de 80 a 1.275,4 mL. La retención urinaria se identificó en el 45% de los casos de esta serie, aunque solo la queja de dolor asociada a la necesidad de micción fue un síntoma indicativo de retención estadísticamente significativo. No hubo diferencias estadísticamente significativas entre los sexos y no se pudo observar la influencia del uso de opioides en la retención urinaria. Conclusión: Los enfermeros perioperatorios deben buscar formación en técnicas avanzadas, incluido el uso de ultrasonogra-fía, como apoyo en su práctica. (AU)

Objetivo: Descrever os resultados da investigação de retenção urinária em pacientes em recuperação anestésica com uso da ultrassonografia. Método: Trata-se de um estudo observacional descritivo, no qual o conteúdo vesical de pacientes em sala de recuperação pós-anestésica foi estimado por meio da ultrassonografia para detectar retenção urinária. Foram incluídos 20 pacientes adultos e idosos com uma hora de permanência na sala de recuperação pós-anestésica de um hospital universitário de grande porte do Nordeste do Brasil, entre junho e outubro de 2022. Resultados: O volume urinário mensurado por meio desse exame de imagem teve média de 588,3±327,6 mL, variando de 80 a 1.275,4 mL. A retenção urinária foi identificada em 45% dos casos desta série, embora apenas a queixa de dor associada à necessidade miccional tenha sido um sintoma indicativo de retenção estatis-ticamente significativo. Não houve diferença estatisticamente significativa entre os sexos e não foi possível observar a influência do uso de opioides na retenção urinária. Conclusão: Os enfermeiros perioperatórios devem buscar formação para técnicas avançadas, incluindo o uso da ultrassonografia, como auxiliar na sua prática. (AU)

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