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AIM: This study aimed to assess, for the first time, the dynamic morphometry of pelvic floor muscles (PFM) using three-dimensional transperineal ultrasound (3D-TPUS) and its progression at two-time points of gestation between women with and without gestational diabetes mellitus (GDM), and whether the PFM dysfunction is connected to GDM. METHODS: The study comprised 83 consecutive pregnant women with (n = 38) and without (n = 45) GDM screened at 24-30 and 38-40 weeks of gestation. 3D-TPUS and a mobility test were used to quantify PFM dynamic morphometry during maximum contraction and the Valsalva maneuver. RESULTS: When compared to the control group, GDM women had no significant variations in all levator hiatal dimensions at 24-30 weeks of gestation. Meanwhile, women with GDM experienced an increase in levator hiatal area (LHa) (p < 0.000) during PFM contraction and enlargement in LHa (p < 0.001) during Valsalva maneuver (p = 0.010) at 38-40 weeks of gestation. As a result, the mobility index among GDM women had a lower value (p = 0.000). The dynamic morphometry development of PFM in GDM women at two stages during pregnancy revealed a substantial decrease (p = 0.000) in all LHa dimensions of contraction, distension, and mobility. CONCLUSIONS: Using 3D-TPUS, we found that GDM women had a specific pattern of PFM functional changes in the third trimester of pregnancy. These initial findings revealed alterations in PFM functionality, such as decreased contractility, distensibility, or mobility. This dysfunctional PFM could contribute to the long-term development of pelvic floor dysfunction years after a GDM pregnancy.
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Diabetes Gestacional , Diafragma da Pelve , Diabetes Gestacional/diagnóstico por imagem , Feminino , Humanos , Imageamento Tridimensional/métodos , Exposição Materna , Contração Muscular/fisiologia , Diafragma da Pelve/diagnóstico por imagem , Gravidez , Estudos Prospectivos , Ultrassonografia/métodos , Manobra de Valsalva/fisiologiaRESUMO
Case Description: A 16-year-old male patient presented with a 12-days sudden painless loss of vision in his left eye after diving in a lake. Best corrected visual acuity (BCVA) in the left eye was counting fingers. Anterior segment was unremarkable. Fundoscopy in the left eye revealed a pre-retinal hemorrhage in the macular region and swept-source ocular coherence tomography (SS-OCT) confirmed the location in the sub-inner limiting membrane (ILM) space. An Neodymium:YAG (Nd:YAG) laser membranotomy was performed the next day in order to drain the hemorrhage into the vitreous cavity. A couple of days after, the BCVA in the left eye improved to 20/ 25, at fundoscopy the blood being almost reabsorbed and the SS-OCT showing a resolution of the sub-ILM hemorrhage. Discussion: Due to Valsalva retinopathy, sub-ILM hemorrhage may lead to a sudden painless vision loss. Spontaneous resolution of the hemorrhage is possible but absorption may take a long time. During this period, intraretinal tissue migration and proliferation may lead to permanent structural damage. Posterior vitrectomy is a treatment option but the fact that it is an invasive procedure fuels the search for less invasive treatment methods and Nd:YAG laser membranotomy fits this place. Conclusion: Given the excellent results and low complication rates, Nd:YAG laser membranotomy is highly recommended to treat this condition as it offers a simple, relatively safe and a non-invasive treatment option for drainage of sub-ILM hemorrhages.
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Membrana Basal/cirurgia , Terapia a Laser/métodos , Lasers de Estado Sólido/uso terapêutico , Hemorragia Retiniana/cirurgia , Acuidade Visual , Adolescente , Angiofluoresceinografia , Fundo de Olho , Humanos , Masculino , Hemorragia Retiniana/diagnósticoRESUMO
RESUMEN El síndrome de vasoconstricción cerebral reversible es una entidad clínico-radiológica caracterizada por la presentación de cefalea severa de inicio hiperagudo tipo "trueno", con o sin signos y síntomas neurológicos adicionales en relación a una vasoconstricción arterial cerebral segmentaria que resuelve espontáneamente a los 3 meses. Por la superposición de las manifestaciones clínicas con otras entidades nosológicas, y por los múltiples factores etiológicos asociados, el diagnóstico se convierte en un reto; es imperativo realizarlo de forma temprana para la instauración de un tratamiento adecuado y la prevención de complicaciones. Se presenta el caso clínico de una paciente en quien se documentó como etiología la realización repetitiva de la maniobra de Valsalva sin otro factor concomitante, se exponen las intervenciones realizadas y se hace una revisión narrativa del tema con énfasis en el diagnóstico diferencial.
SUMMARY Reversible cerebral vasoconstriction syndrome is a clinical-radiological entity characterized by severe and hyperacute onset-thunderclap headache, with or without additional neurological signs and symptoms in relation to a segmental cerebral arterial vasoconstriction that resolves spontaneously at around 3 months. Its clinical manifestations are similar to other diseases, and additionally there are multiple associated etiological factors; early diagnosis becomes a challenge, but is essential to establish proper treatment and prevent complications. We present the case of a female patient in whom the repetitive performance of the Valsalva maneuver without another concomitant factor was documented as etiology, the interventions performed are presented and a narrative review of the topic is made with emphasis on differential diagnosis.
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Mobilidade UrbanaRESUMO
Resumen ANTECEDENTES: La evisceración por vía vaginal es una urgencia quirúrgica poco frecuente, con menos de 100 reportes en la bibliografía. Se asocia con múltiples factores, el más importante es la cirugía ginecológica por vía vaginal. La presentación clínica es variable y el tratamiento consiste en cirugía de urgencia para disminuir la morbilidad y mortalidad asociada con las complicaciones. CASO CLÍNICO: Paciente de 63 años, sin antecedentes quirúrgicos o procedimientos por vía vaginal, referida del segundo nivel al Hospital Regional de Alta Especialidad de Oaxaca, con diagnóstico de evisceración por vía vaginal, posterior a una maniobra de Valsalva cuando evacuaba, con posterior sensación de cuerpo extraño en el canal vaginal. Fue valorada en el servicio de Urgencias de un hospital de tercer nivel en donde se la encontró hemodinámicamente estable, con signos vitales en parámetros normales, taquicárdica, con 103 latidos por minuto. De inmediato fue intervenida y en el transoperatorio se evidenció la ruptura de la cúpula vaginal, con evisceración y necrosis de 100 cm de íleon terminal. Se le practicaron: resección, anastomosis y cierre primario del defecto vaginal. Se le tomó biopsia del cuello uterino; la colposcopia se reportó con malignidad negativa. El posoperatorio evolucionó sin contratiempos. CONCLUSIÓN: Hasta ahora, se encuentran menos de 100 reportes de esta complicación, que requiere de sospecha y tratamiento oportuno para disminuir la morbilidad y mortalidad asociada. Lo relevante de este caso es la ausencia de antecedentes quirúrgicos que pudieran ser la causa.
Abstract BACKGROUND: Vaginal evisceration is a rare entity, with less than 100 reports in the -literature, which is associated with multiple factors, the most important being the history of a gynecological surgical approach by vaginal approach. The clinical presentation is variable, and the treatment is based on emergency surgery to reduce the associated morbidity and mortality. CLINICAL CASE: The case of a 63-year-old female with no surgical history or vaginal procedures with a diagnosis of vaginal evisceration after performing a Valsalva maneuver when evacuating with a foreign body sensation in the vaginal canal, presenting a vaginal dome rupture, with evisceration and necrosis of the case is presented. 100 cm of terminal ileum who undergoes surgical time with resection, anastomosis as well as primary closure of vaginal defect, presents pathology report, cervical biopsy, as well as negative colposcopy of malignancy. CONCLUSION: So far, there are fewer than 100 reports of this complication, which requires suspicion and timely treatment to reduce the associated morbidity and mortality. What is relevant in this case is the absence of a surgical history that could be the cause.
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Resumen ANTECEDENTES: La epistaxis durante el embarazo, aparte de ser una urgencia, tiene una prevalencia tres veces superior a la de la población general. Se controla con medidas conservadoras, aunque a veces deben indicarse tratamientos que implican intervenciones quirúrgicas. CASO CLÍNICO: Paciente de 37 años, con embarazo de 37 semanas, que acudió a Urgencias por epistaxis, sin reacción a las técnicas conservadoras (taponamiento nasal de diversa índole), que provocó anemia progresiva y requirió ligadura de la arteria esfenopalatina para detener el sangrado. Enseguida se llevó a cabo la cesárea, indicada por rotura prematura de membranas e imposibilidad de realizar la maniobra de Valsalva; nació un varón con Apgar 9-10-10. La paciente continuó con alteraciones en la anatomía de los senos paranasales debido a la intervención quirúrgica y en seguimiento en consulta de Otorrinolaringología. CONCLUSIONES: La epistaxis, aunque es un evento frecuente durante el embarazo, puede afectar a la madre y su hijo; por tanto, es importante conocer los tratamientos disponibles al respecto, notificar los nuevos casos y el tratamiento para aumentar el conocimiento de esta alteración infrecuente pero grave.
Abstract BACKGROUND: Epistaxis is a frequent emergency, which prevalence during pregnancy is three times higher than the general female population. It is usually managed with conservative measures, but sometimes more aggressive treatments like surgery may be required. Due to the limited bibliography currently available, new cases and their management should be recorded in order to assess outcomes. CASE REPORT: A 37-week-old pregnant woman went to the Emergency Department with an epistaxis that did not stop despite the use of conservative techniques. As a result of progressive anemization a sphenopalatine artery ligation was required to stop the bleeding. A cesarean section was performed for premature rupture of membranes and the impossibility of Valsalva maneuver. A male infant was born with APGAR test results of 9-10-10. During follow up the patient presented changes in the anatomy of her paranasal sinuses caused by the sphenopalatine artery ligation and is being followed up by Ear-Nose-Throat specialist. CONCLUSION: Epistaxis during pregnancy rarely leads to maternal and/or fetal involvement; it is therefore essential to know all treatments available as well to record new cases and their management to increase knowledge about this uncommon but severe pathology.
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Resumen: ANTECEDENTES: La insuficiencia cardiaca afecta a 26 millones de personas en todo el mundo. Al evaluar la variación de las cifras de presión arterial y frecuencia cardiaca tras la realización de la maniobra de Valsalva se ha encontrado correlación entre la función ventricular izquierda y el péptido auricular natriurético. OBJETIVO: Determinar si el gradiente de presión de pulso posterior y previo a la maniobra de Valsalva es útil como marcador de disfunción sistólica del ventrículo izquierdo. MATERIAL Y MÉTODO: Estudio de cohorte realizado del 1 de enero al 30 de junio de 2017, en el que se determinó la fracción de eyección del ventrículo izquierdo, propéptido natriurético cerebral, así como la sustracción de presión de pulso posterior y previo a la maniobra de Valsalva, esta variable se determinó como gradiente de presión de pulso pos y pre-Valsalva. RESULTADOS: Se incluyeron 32 pacientes. Una cifra de gradiente menor de 4.22 tuvo correlación negativa con la fracción de eyección del ventrículo izquierdo menor de 50%, con coeficiente de correlación de -0.562 y valor p de 0.001, además de tener un área bajo la curva de 0.71. CONCLUSIONES: El gradiente y la fracción de eyección tuvieron correlación negativa, ésta en el área indeterminada de la función sistólica. Una FEVI menor de 50% implica riesgo de descompensación y de FEVI deprimida.
Abstract: BACKGROUND: Heart failure affects to 26 million people worldwide. The variation of the blood pressure and heart rate values after performing the Valsalva maneuver has been evaluated, finding a correlation between left ventricular function and natriuretic atrial peptide. OBJECTIVE: To determine if post- and pre-Valsalva pulse pressure gradient is useful as marker of left ventricle systolic dysfunction. MATERIAL AND METHOD: A cohort study was done from January 1st to June 30, 2017, determining left ventricular ejection fraction, cerebral natriuretic peptide, as well as the subtraction of post-Valsalva and pre-Valsalva pulse pressure, this variable was determined as pulse pressure gradient. RESULTS: There were included 32 patients. A gradient figure of less than 4.22 had a negative correlation with a left ventricular ejection fraction lesser than 50%, with a correlation coefficient of -0.562 and a p value of 0.001, in addition to having an area under the curve of 0.71. CONCLUSIONS: The gradient and the ejection fraction had a negative correlation, this in the indeterminate area of the systolic function. An LVEF lesser than 50% implies risk of decompensation and a depressed LVEF.
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Congestion in heart failure patients with reduced ejection fraction (HFrEF) is relevant and closely linked to the clinical course. Bedside blood pressure measurement during the Valsalva maneuver (Val) added to clinical examination may improve the assessment of congestion when compared to NT-proBNP levels and left atrial pressure (LAP) estimation by Doppler echocardiography, as surrogate markers of congestion in HFrEF. A clinical examination, LAP and blood tests were performed in 69 HFrEF ambulatory patients with left ventricular ejection fraction ≤ 40% and sinus rhythm. Framingham Heart Failure Score (HFS) was used to evaluate clinical congestion; Val was classified as normal or abnormal, NT-proBNP was classified as low (< 1000 pg/ml) or high (≥ 1000 pg/ml) and the ratio between Doppler early mitral inflow and tissue diastolic velocity was used to estimate LAP and was classified as low (E/e'< 15) or high (E/e' ≥ 15). A total of 69 patients with HFrEF were included; 27 had a HFS ≥ 2 and 13 of them had high NT-proBNP. HFS ≥ 2 had a 62% sensitivity, 70% specificity and a positive likelihood ratio of 2.08 (p=0.01) to detect congestion. When Val was added to clinical examination, the presence of a HFS ≥ 2 and abnormal Val showed a 100% sensitivity, 64% specificity and a positive likelihood ratio of 2.8 (p = 0.0004). Compared with LAP, the presence of HFS = 2 and abnormal Val had 86% sensitivity, 54% specificity and a positive likelihood ratio of 1.86 (p = 0.03). In conclusion, an integrated clinical examination with the addition Valsalva maneuver may improve the assessment of congestion in patients with HFrEF.
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Biomarcadores/análise , Insuficiência Cardíaca/diagnóstico , Peptídeo Natriurético Encefálico/análise , Fragmentos de Peptídeos/análise , Manobra de Valsalva , Ecocardiografia Doppler , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Curva ROC , Sensibilidade e Especificidade , Índice de Gravidade de DoençaRESUMO
La evaluación de la congestión en pacientes con insuficiencia cardíaca y fracción de eyección reducida (ICFEr) resulta relevante y estrechamente vinculada al curso clínico. El agregado del comportamiento de la presión arterial durante la maniobra de Valsalva en la cabecera del paciente (VAL) podría mejorar la evaluación clínica de congestión cuando la comparamos con los niveles de NT-proBNP y la estimación de la presión media en la aurícula izquierda por Doppler cardíaco, como subrogantes de congestión. Se realizó un examen clínico con el VAL, un examen de laboratorio y un Doppler cardíaco en 69 pacientes ambulatorios con insuficiencia cardíaca y fracción de eyección ≤ 40% en ritmo sinusal. El score de Framingham ≥ 2 (SFr ≥ 2) se empleó para evaluar congestión clínica. VAL fue clasificado como normal o anormal, el NT-proBNP como bajo (< 1000 pg/ml) o alto (≥ 1000 pg/ml) y la relación entre la velocidad del llenado ventricular rápido y la velocidad del Doppler tisular (E/e') como baja < 15 o alta ≥ 15. Se halló que 13/27 pacientes con SFr ≥ 2 tenían NT-proBNP alto (sensibilidad 62%, especificidad 70% y razón de verosimilitud positiva [LR+] de 2.08, p = 0.01). El agregado del VAL al SFr ≥ 2 mejoró la exactitud diagnóstica (sensibilidad 100%, especificidad 64% y LR+ 2.8 p = 0.0004). Comparado con la E/e', SFr ≥ 2 con VAL anormal mostró sensibilidad 86%, especificidad 56% y LR + 1.86 (p = 0.03). En conclusión, el agregado del comportamiento de la presión durante la maniobra de Valsalva podría mejorar la evaluación clínica de la congestión en la insuficiencia cardíaca.
Congestion in heart failure patients with reduced ejection fraction (HFrEF) is relevant and closely linked to the clinical course. Bedside blood pressure measurement during the Valsalva maneuver (Val) added to clinical examination may improve the assessment of congestion when compared to NT-proBNP levels and left atrial pressure (LAP) estimation by Doppler echocardiography, as surrogate markers of congestion in HFrEF. A clinical examination, LAP and blood tests were performed in 69 HFrEF ambulatory patients with left ventricular ejection fraction ≤ 40% and sinus rhythm. Framingham Heart Failure Score (HFS) was used to evaluate clinical congestion; Val was classified as normal or abnormal, NT-proBNP was classified as low (< 1000 pg/ml) or high (≥ 1000 pg/ml) and the ratio between Doppler early mitral inflow and tissue diastolic velocity was used to estimate LAP and was classified as low (E/e'< 15) or high (E/e' ≥ 15). A total of 69 patients with HFrEF were included; 27 had a HFS ≥ 2 and 13 of them had high NT-proBNP. HFS ≥ 2 had a 62% sensitivity, 70% specificity and a positive likelihood ratio of 2.08 (p=0.01) to detect congestion. When Val was added to clinical examination, the presence of a HFS ≥ 2 and abnormal Val showed a 100% sensitivity, 64% specificity and a positive likelihood ratio of 2.8 (p = 0.0004). Compared with LAP, the presence of HFS ≥ 2 and abnormal Val had 86% sensitivity, 54% specificity and a positive likelihood ratio of 1.86 (p = 0.03). In conclusion, an integrated clinical examination with the addition Valsalva maneuver may improve the assessment of congestion in patients with HFrEF.
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Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Fragmentos de Peptídeos/análise , Biomarcadores/análise , Manobra de Valsalva , Peptídeo Natriurético Encefálico/análise , Insuficiência Cardíaca/diagnóstico , Índice de Gravidade de Doença , Ecocardiografia Doppler , Estudos Prospectivos , Curva ROC , Sensibilidade e EspecificidadeRESUMO
AIMS: To perform a comparative evaluation of Valsalva maneuver techniques, in an attempt to identify the most suitable one for achieving leak point pressure (LPP) during the cystometric phase of the urodynamic study (UDS), in order to propose a method for technical standardization. METHODS: Urodynamic data from women with stress urinary incontinence at three urogynecological medical centers were randomly selected and prospectively analyzed. Valsalva maneuver was executed through forceful attempted exhalation against the dorsal surface of the hand (Group 1), through abdominal strain (Group 2), or through low-elasticity latex balloon-blowing (Group 3). Patients were classified based on age and higher vesical pressure value, as well as time to perform Valsalva maneuver. RESULTS: Initially, 1358 urodynamic studies were identified as eligible for analysis. Among these, 340 belonged to Group 1, 318 to Group 2, and 700 to Group 3. Valsalva maneuver accomplished through abdominal straining was more effective, inducing increased vesical pressure, across age groups. The same maneuver may be sustained for longer than the other two techniques. CONCLUSION: When performed through abdominal strain, the Valsalva maneuver was more effective for stress urinary incontinence urodynamic's investigation.
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Uretra/fisiologia , Bexiga Urinária/fisiologia , Incontinência Urinária por Estresse/fisiopatologia , Urodinâmica/fisiologia , Manobra de Valsalva , Adulto , Idoso , Idoso de 80 Anos ou mais , Elasticidade , Feminino , Humanos , Pessoa de Meia-Idade , Pressão , Adulto JovemRESUMO
ABSTRACT Objective: We aimed to assess the association between obstructive sleep apnea (OSA) and aberrant pneumatization of skull bones in Amerindians living in rural Ecuador. Methods: A random sample of community-dwelling individuals aged ≥60 years enrolled in the Atahualpa Project, were invited to undergo a single diagnostic night polysomnography (PSG) at the sleep unit of the Atahualpa Project Community Center. Exams were performed with an Embletta® X100™ Comprehensive Portable PSG System. A board-certified sleep neurologist carried out analyses of sleep efficiency, architecture, arousal indexes, apnea/hypopnea index, oxygen saturation, heart rate and motor activity. CT readings were focused on the presence and distribution of pneumatization of intracranial bones, as assessed by CT with bone window settings. Results: Thirty-eight participants were included. Mean age was 74.5 ± 6.8 years and 25 (66%) were women. The apnea/hypopnea index ranged from 0.2 to 56 (mean 15.7 ± 14.6) episodes per hour. Fifteen persons (39%) had ≥10 episodes per hour and were considered to have OSA. Abnormal pneumatization of skull bones was noticed in six persons, included five out of 15 (33%) with OSA and one out of 23 (4%) without (p=0.027). Air was found in the temporal squamas in five (bilateral in four), the occipital bones in one, and in both the temporal squamas and the occipital bones in the remaining person. Conclusion: This study shows a significant association between OSA and aberrant pneumatization of skull bones. These findings are of potential clinical relevance, since these individuals could be at increased risk of painless fractures from minor trauma or may be prone to develop spontaneous cerebrospinal fluid leaks.
RESUMEN Objetivo: Determinar la asociación entre apnea obstructiva de sueño y neumatización aberrante de huesos del cráneo en una población de Amerindios. Métodos: Una muestra aleatoria de adultos de 60 años o más enrolada en el Proyecto Atahualpa, fue invitada a realizarse una polisomnografía diagnóstica (una noche) en la Unidad de Sueño del Centro de Apoyo Comunitario del Proyecto Atahualpa. Los exámenes fueron realizados con una máquina portátil Embletta® X100™. Un neurólogo certificado en sueño realizó la lectura de todos los exámenes, con atención a eficiencia y arquitectura del sueño, índices de despertar, índice apnea-hipopnea, saturación de oxígeno, frecuencia cardiaca y actividad motora. La lecturas tomográficas se enfocaron en la presencia y distribución de neumatización aberrante de huesos del cráneo, valoradas con ventana ósea. Resultados: Se incluyeron 38 pacientes (edad media 74.5 ± 6.8 años, 66% mujeres). El índice apnea-hipopnea fluctuó entre 0.2 a 56 (promedio: 15.7 ± 14.6) episodios por hora. Quince participantes (39%) tuvieron ≥10 episodios por hora y fueron diagnosticados con apnea de sueño. Seis personas tuvieron neumatización aberrante de huesos craneales, incluyendo 5 de 15 (33%) con apnea de sueño y uno de 23 (4%) sin apnea de sueño (p=0.027). El aire se localizó en las escamas temporales en 5 casos, en los huesos occipitales en uno y en ambas localizaciones en la persona restante. Conclusión: Existe una asociación entre apnea de sueño y neumatización aberrante de huesos del cráneo. Estos hallazgos tienen relevancia clínica ya que estos individuos pueden tener riesgo aumentado de fracturas de cráneo luego de traumas menores o de desarrollar fístulas espontáneas de líquido cefalorraquídeo.
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PURPOSE: To evaluate the heart rate variability (HRV) indices and heart rate (HR) responses during isometric contraction (IC) and Valsalva maneuver (VM) in COPD patients. METHODS: Twenty-two stable moderate to severe COPD patients were evaluated. R-R intervals were recorded (monitor Polar® S810i) during dominant upper limb IC (2 minutes). Stable signals were analyzed by Kubios HRV® software. Indices of HRV were computed in the time domain (mean HR; square root of the mean squared differences of successive RR intervals [RMSSD] and HRV triangular index [RR tri index]) and in the frequency domain (high frequency [HF]; low frequency [LF] and LF/HF ratio). The HR responses were evaluated at rest, at the peak and at the nadir of the VM (15 seconds). The Valsalva index was also calculated. RESULTS: During IC: time domain indices (mean HR increased [P=0.001], RMSSD, and RR tri index decreased [P=0.005 and P=0.005, respectively]); frequency domain indices (LF increased [P=0.033] and HF decreased [P=0.002]); associations were found between forced expiratory volume in 1 second (FEV1) vs RMSSD (P=0.04; r=-0.55), FEV1 vs HR (P=0.04; r=-0.48), forced vital capacity (FVC) vs RMSSD (P=0.05; r=-0.62), maximum inspiratory pressure (MIP) vs HF (P=0.02; r=0.68). FEV1 and FVC justified 30% of mean HR. During VM: HR increased (P=0.01); the nadir showed normal bradycardic response; the Valsalva index was =0.7. CONCLUSION: COPD patients responded properly to the upper limb IC and to the VM; however, HR recovery during VM was impaired in these patients. The severity of the disease and MIP were associated with increased parasympathetic modulation and higher chronotropic response.
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Sistema Nervoso Autônomo/fisiopatologia , Frequência Cardíaca , Coração/inervação , Contração Isométrica , Pulmão/fisiopatologia , Músculo Esquelético/fisiopatologia , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Manobra de Valsalva , Adaptação Fisiológica , Idoso , Brasil , Estudos Cross-Over , Estudos Transversais , Feminino , Volume Expiratório Forçado , Humanos , Masculino , Pessoa de Meia-Idade , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Recuperação de Função Fisiológica , Fatores de Tempo , Extremidade Superior , Capacidade VitalRESUMO
Abstract Introduction The diagnosis of Eustachian tube dysfunctions is essential for better understanding of the pathogenesis of chronic otitis media. A series of tests to assess tube function are described in the literature; however, they are methodologically heterogeneous, with differences ranging from application protocols to standardization of tests and their results. Objective To evaluate the variation in middle ear pressure in patients with tympanic membrane retraction and in normal patients during tube function tests, as well as to evaluate intra-individual variation between these tests. Methods An observational, contemporary, cross-sectional study was conducted, in which the factor under study was the variation in middle ear pressure during tube function tests (Valsalva maneuver, sniff test, Toynbee maneuver) in healthy patients and in patients with mild and moderate/severe tympanic retraction. A total of 38 patients (76 ears) were included in the study. Patients underwent tube function tests at two different time points to determine pressure measurements after each maneuver. Statistical analysis was performed using SPSS software, version 18.0, considering p-values <0.05 as statistically significant. Results Mean (standard deviation) age was 11 (2.72) years; 55.3% of patients were male and 44.7% female. The prevalence of type A tympanogram was higher among participants with healthy ears and those with mild retraction, whereas type C tympanograms were more frequent in the moderate/severe retraction group. An increase in middle ear pressure was observed during the Valsalva maneuver at the first time point evaluated in all three groups of ears (p = 0.012). The variation in pressure was not significant either for the sniff test or for the Toynbee maneuver at the two time points evaluated (p ≥ 0.05). Agreement between measurements obtained at the two different time points was weak to moderate for all tests in all three groups of ears, and the variations in discrepancy between measurements were higher in ears with moderate/severe tympanic retraction. Conclusion In this study population, the mean pressure in the middle ear showed significant variation only during the Valsalva maneuver at the first time point evaluated in the three groups of ears. Normal ears and those with mild retraction behaved similarly in all tests. The tested maneuvers exhibited weak to moderate intra-individual variation, with the greatest variation occurring in ears with moderate/severe retraction.
Resumo Introdução O diagnóstico das disfunções da tuba auditiva é essencial para o melhor entendimento da patogênese da otite média crônica. A literatura descreve uma série de testes que avaliam a função tubária; contudo, tais exames são metodologicamente heterogêneos, com diferenças que variam desde os protocolos de aplicação até a padronização dos exames e seus resultados. Objetivo Avaliar a variação na pressão na orelha média em pacientes com retração da membrana timpânica e em indivíduos normais durante os testes de função tubária e também avaliar a variação intraindividual desses testes. Método Estudo observacional do tipo transversal e contemporâneo, no qual o fator em estudo foi a variação na pressão na orelha média durante os testes de função tubária (manobra de Valsalva, Sniff Test e manobra de Toynbee) em indivíduos normais e em pacientes com retrações timpânicas leves e moderadas/graves. Foram incluídos 38 pacientes (76 orelhas). Os pacientes foram submetidos, em dois momentos diferentes, a testes de função tubária para determinar as medidas de pressão após cada manobra. A análise estatística foi feita com o programa SPSS, versão 18.0, e consideramos como estatisticamente significativos os valores de p < 0,05. Resultados A média ± desvio padrão da idade foi de 11 ± 2,72 anos; 55,3% dos pacientes eram do gênero masculino e 44,7% do feminino. A prevalência de curvas timpanométricas do tipo A foi mais alta entre os participantes com orelhas normais e naqueles com retrações leves, enquanto as curvas timpanométricas do tipo C foram mais frequentes no grupo com retrações moderadas/graves. Observamos pressões aumentadas na orelha média durante a manobra de Valsalva no primeiro momento da avaliação nos três grupos de orelhas (p = 0,012). A variação na pressão não foi significativa para o Sniff Test, nem para a manobra de Toynbee nos dois momentos de avaliação (p ≥ 0,05). Consideramos que a concordância entre as determinações obtidas nos dois momentos diferentes foi fraca a moderada para todos os testes nos três grupos de orelhas e as variações em termos de discrepância entre as medidas foram maiores nas orelhas com retrações timpânicas moderadas/graves. Conclusão Na população estudada, a média das pressões na orelha média apresentou variação significante apenas durante a manobra de Valsalva no primeiro momento de avaliação, nos três grupos de orelhas. As orelhas normais e aquelas que apresentavam retração leve se comportaram de maneira similar nos testes. As manobras testadas exibiram uma variação intraindividual fraca a moderada e a maior variação ocorreu nas orelhas com retrações moderadas/graves.
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Adulto Jovem , Membrana Timpânica/anormalidades , Tuba Auditiva/fisiopatologia , Membrana Timpânica/fisiopatologia , Índice de Gravidade de Doença , Estudos de Casos e Controles , Manobra de Valsalva , Estudos Transversais , Tuba Auditiva/fisiologiaRESUMO
INTRODUCTION: The diagnosis of Eustachian tube dysfunctions is essential for better understanding of the pathogenesis of chronic otitis media. A series of tests to assess tube function are described in the literature; however, they are methodologically heterogeneous, with differences ranging from application protocols to standardization of tests and their results. OBJECTIVE: To evaluate the variation in middle ear pressure in patients with tympanic membrane retraction and in normal patients during tube function tests, as well as to evaluate intra-individual variation between these tests. METHODS: An observational, contemporary, cross-sectional study was conducted, in which the factor under study was the variation in middle ear pressure during tube function tests (Valsalva maneuver, sniff test, Toynbee maneuver) in healthy patients and in patients with mild and moderate/severe tympanic retraction. A total of 38 patients (76 ears) were included in the study. Patients underwent tube function tests at two different time points to determine pressure measurements after each maneuver. Statistical analysis was performed using SPSS software, version 18.0, considering p-values <0.05 as statistically significant. RESULTS: Mean (standard deviation) age was 11 (2.72) years; 55.3% of patients were male and 44.7% female. The prevalence of type A tympanogram was higher among participants with healthy ears and those with mild retraction, whereas type C tympanograms were more frequent in the moderate/severe retraction group. An increase in middle ear pressure was observed during the Valsalva maneuver at the first time point evaluated in all three groups of ears (p=0.012). The variation in pressure was not significant either for the sniff test or for the Toynbee maneuver at the two time points evaluated (p≥0.05). Agreement between measurements obtained at the two different time points was weak to moderate for all tests in all three groups of ears, and the variations in discrepancy between measurements were higher in ears with moderate/severe tympanic retraction. CONCLUSION: In this study population, the mean pressure in the middle ear showed significant variation only during the Valsalva maneuver at the first time point evaluated in the three groups of ears. Normal ears and those with mild retraction behaved similarly in all tests. The tested maneuvers exhibited weak to moderate intra-individual variation, with the greatest variation occurring in ears with moderate/severe retraction.
Assuntos
Tuba Auditiva/fisiopatologia , Membrana Timpânica/anormalidades , Adolescente , Estudos de Casos e Controles , Criança , Estudos Transversais , Tuba Auditiva/fisiologia , Feminino , Humanos , Masculino , Índice de Gravidade de Doença , Membrana Timpânica/fisiopatologia , Manobra de Valsalva , Adulto JovemRESUMO
ABSTRACT Purpose: This study aimed to explore the effects of the Valsalva maneuver (VM) on ectatic corneas during anterior segment tomography scans using a Scheimpflug camera. Methods: This prospective observational study included 100 eyes of 50 patients with bilateral keratoconus (KC). Anterior segment tomography was first performed when the patients were in a resting position and immediately repeated as the participant performed VM. Scheimpflug images were taken using a Pentacam®. Results: The mean age of the participants was 24.14 ± 6.59 years. Of the 100 eyes included in the study, 7% had stage 1 KC, 47% had stage 2 KC, 32% had stage 3 KC, and 14% had stage 4 KC. The indices of KC were not significantly affected by VM. Similarly, no statistically significant differences were found between the stages of KC, or with the mean pachymetric progression index during VM. Pupil diameter showed a statistically significant increase during VM (p=0.017). There was a statistically significant decrease in the anterior chamber angle measurement during VM (p=0.001). Maximum curvature power in the front of the cornea decreased more during VM in stage 4 KC than for the other stages (p=0.014). Conclusions: No changes associated with VM were found in the KC indices or the stage of the disease. However, an increase in pupil diameter and a decrease in anterior chamber angle value were found. These changes were comparable to values obtained from previous studies performed on normal corneas.
RESUMO Objetivo: Este estudo tem como objetivo explorar os efeitos da manobra de Valsalva (VM) na córnea ectásica durante a varredura tomográfica do segmento anterior usando a câmera de Scheimpflug. Métodos: Foi conduzido estudo observacional, prospectivo envolvendo 100 olhos de 50 pacientes que apresentavam ceratocone (KC) bilateral. Tomografia do segmento anterior foi realizada inicialmente quando os pacientes estavam em posição de repouso e imediatamente depois, no curso de VM. Imagens de Scheimpflug foram feitas usando Pentacam®. Resultados: A média de idade dos participantes foi 24,14 ± 6,59 anos de idade. Dos olhos incluídos no estudo, 7% apresentava KC estágio 1,47% apresentava estágio 2,32% apresentava estágio 3, e 14% apresentava estágio 4. Índices de KC não foram significativamente afetadas pela VM. Não houve diferenças estatisticamente significativas com o estágio do KC, e o índice médio de progressão paquimétrica durante a VM. O diâmetro da pupila (PD) mostrou aumento estatisticamente significativo durante a VM (p=0,017). Houve diminuição estatisticamente significativa na medida do ângulo da câmara anterior durante a VM (p=0,001). O poder máximo de curvatura anterior da córnea no KC estágio 4 diminuiu mais do que os outros estágios durante o VM (p=0,014). Conclusões: Não foram encontradas alterações nos índices KC e no estágio da doença por causa da VM. Verificou-se que houve aumento na PD e uma diminuição no valor do ângulo da câmara anterior. Estas alterações foram comparáveis aos valores obtidos a partir de estudos realizados em córneas normais.
Assuntos
Humanos , Masculino , Feminino , Adulto , Adulto Jovem , Fotografação/métodos , Manobra de Valsalva/fisiologia , Córnea/diagnóstico por imagem , Topografia da Córnea/métodos , Ceratocone/diagnóstico , Câmara Anterior/diagnóstico por imagem , Estudos Prospectivos , Progressão da Doença , Paquimetria Corneana/métodos , Ceratocone/patologia , Ceratocone/diagnóstico por imagemRESUMO
ABSTRACT Purpose: To investigate the effects of the Valsalva maneuver (VM) on optic disc morphology, choroidal thickness, and anterior chamber parameters. Methods: This prospective observational study included 60 eyes of 60 healthy subjects. The anterior chamber parameters, including central corneal thickness (CCT), anterior chamber depth (ACD), anterior chamber angle (ACA), anterior chamber volume (ACV), pupil diameter (PD), axial length (AL), subfoveal and peripapillary choroidal thickness, optic disc parameters, and intraocular pressure (IOP), were measured at rest and during VM. Results: VM did not have any significant influence on AL, subfoveal and peripapillary choroidal thickness, optic disc area, rim area, cup area, cup-to-disc area ratio, vertical cup-to-disc ratio, rim volume, cup volume, and nerve head volume measurements (for all; p >0.05). IOP and PD significantly increased during VM (for both; p <0.001). VM significantly decreased CCT, ACD, ACA, and ACV values (for all; p <0.001). Moreover, the optic nerve cup volume decreased and the horizontal cup-to-disc ratio significantly increased during VM (for both; p <0.05). Conclusions: VM may cause transient changes in IOP, optic disc morphology, and anterior chamber parameters.
RESUMO Objetivo: Investigar os efeitos da manobra de Valsalva (VM) sobre a morfologia do disco óptico, a espessura da coroide e parâmetros câmara anterior. Métodos: Estudo observacional, prospectivo incluiu 60 olhos de 60 indivíduos saudáveis. Os parâmetros da câmara anterior, incluindo da espessura central da córnea (CCT), profundidade da câmara anterior (ACD), ângulo da câmara anterior (ACA), volume de câmara anterior (ACV), diâmetro da pupila (PD), comprimento axial (AL), espessura da coroide subfoveal e peripapilar, parâmetros de disco óptico e pressão intraocular (IOP) foram medidos em repouso e durante VM. Resultados: A VM não apresentou influência significativa em AL, espessura da coroide subfoveal e peripapilar, área de disco óptico, área da rima neural, área da escavação, relação da área escavação-disco, a relação vertical escavação-disco, volume da rima neural, volume da escavação, medidas de volume cabeça do nervo (para todos; p >0,05). IOP e PD aumentaram significativamente durante VM (para ambos; p <0,001). A VM diminuiu os valores CCT, ACD, ACA e ACV significativamente (para todos; p <0,001). Além disso, o volume da escavação do nervo óptico diminuiu e a razão horizontal escavação-disco aumentou significativamente durante VM (para ambos; p <0,05). Conclusões: A VM pode causar alterações transitórias na pressão intraocular, na morfologia do disco óptico e em parâmetros câmara anterior.
Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Disco Óptico/anatomia & histologia , Manobra de Valsalva/fisiologia , Corioide/anatomia & histologia , Pressão Intraocular/fisiologia , Câmara Anterior/anatomia & histologia , Nervo Óptico/fisiologia , Postura/fisiologia , Valores de Referência , Estudos Prospectivos , Análise de RegressãoRESUMO
En esta edición de la ronda clínica y epidemiológica analizamos los resultados del estudio SPRINT, que plantea un control más intensivo de la presión arterial para la prevención de los eventos cardiovasculares. También exponemos los resultados del estudio REVERT, en el que se usó una modificación de la maniobra de Valsalva para tratar pacientes con taquicardias supraventriculares estables. Kane y colaboradores exploran la mejoría de la calidad de vida de pacientes con su primer episodio psicótico, tras recibir un enfoque multidisciplinario en comparación con el tratamiento comunitario habitual. Por último, Toledo y colaboradores estudian la incidencia del cáncer de mama en el estudio PREDIMED luego de seguir un régimen alimentario basado en la dieta mediterránea...
In this edition of the clinical and epidemiological round, we analyze the results of the SPRINT study, which suggest a more intensive control of the blood pressure for prevention of cardiovascular events. In addition, we present the results of the REVERT study, that used a modified Valsalva maneuver to treat stable supraventricular tachycardia. Kane et al. explore the improvement of the quality of life in patents with their first psychotic episode after a multidisciplinary approach versus the usual community care. Finally, Toledo et al. analyze the incidence of breast cancer in the PREDIMED study after the patients have followed a Mediterranean diet...
Nesta edição da ronda clínica e epidemiológica analizamos os resultados do estudo SPRINT, que planteia um controle mais intensivo da pressão arterial para a prevenção dos eventos cardiovasculares. Também exporemos os resultados do estudo REVERT, no que se usou uma modificação da manobra de Valsalva para tratar taquicardias supraventriculares estáveis. Kane y colaboradores exploram a melhoria da qualidade de vida de pacientes com seu primeiro episódio psicótico, após receber uma abordagem multidisciplinário em comparação com o tratamento comunitário habitual. Por último, Toledo e colaboradores estudam a incidência do câncer de mama no estudo PREDIMED logo de seguir uma dieta alimentício baseada na dieta mediterrânea...
Assuntos
Humanos , Doenças Cardiovasculares , Neoplasias da Mama , Taquicardia Supraventricular , Transtornos Psicóticos , Epidemiologia , Estágio ClínicoRESUMO
PURPOSE: The autonomic maneuvers are simple methods to evaluate autonomic balance, but the association between autonomic maneuvers and heart rate variability (HRV) in hemodialysis patients remains unknown. This study aimed to evaluate the correlation between HRV and respiratory sinus arrhythmia (RSA) and Valsalva maneuver (VM) indexes in hemodialysis patients and to compare two methods for RSA indexes acquisitions. METHODS: Forty-eight volunteers on hemodialysis (66.7 % men) were evaluated by VM, RSA, and 24 h Holter monitoring. At the VM, the Valsalva index (VI) was the variable considered. In the RSA, the ratio and difference between the RR intervals of inspiratory and expiratory phase (E:I and E-I, respectively) were considered by traditional form (average of respiratory cycles) and independent respiratory cycles (E:Iindep and E-Iindep). The HRV indexes evaluated were standard deviation of all normal RR intervals (SDNN), standard deviation of sequential 5-min RR interval means (SDANN), root mean square of the successive differences (rMSSD) and percentage of adjacent RR intervals with difference of duration greater than 50 ms (pNN50). RESULTS: The SDNN, SDANN showed significant correlation with all classic indexes of RSA (E:I: r = 0.62, 0.55, respectively, E-I: r = 0.64, 0.57, respectively), E:Iindep (r = 0.59, 0.54, respectively), E-Iindep (r = 0.47, 0.43, respectively) and VI (r = 0.42, 0.34, respectively). Significant correlation of rMSSD with E:I (r = 0.37), E-I (r = 0.41) and E:Iindep (r = 0.34) was also observed. There was no association of any variable with pNN50. Have been show high values for all variables of independent cycles method (p < 0.05). CONCLUSION: The autonomic maneuvers, especially RSA, are useful methods to evaluate cardiac autonomic function in hemodialysis patients. The acquisition of the RSA index by independent cycles should not be used in this population.
Assuntos
Frequência Cardíaca/fisiologia , Diálise Renal , Adulto , Variação Biológica Individual , Feminino , Testes de Função Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Diálise Renal/estatística & dados numéricos , Arritmia Sinusal Respiratória/fisiologiaRESUMO
Se presenta el caso de un hombre de 44 años de edad que consultó al servicio de urgencias por presentar un edema súbito palpebral izquierdo posterior a una maniobra de Valsalva. El enfisema orbitario espontáneo es una entidad poco frecuente que se caracteriza por la presencia de aire en los tejidos blandos periorbitarios producido por la comunicación de estos con los senos paranasales. Es importante mencionar la utilidad de las imágenes diagnósticas de esta entidad, ya que permite descartar otras lesiones asociadas, con la subsecuente implicación terapéutica.
We report a 44 years old male who consulted to the emergency department because he presented sudden left eyelid edema after a Valsalva maneuver. Spontaneous orbital emphysema is a rare entity characterized by the presence of air in the periorbital soft tissues produced by direct communication to the paranasal sinuses. It is important to mention the usefulness of diagnostic images of this entity, allowing us to rule out other injuries associated with subsequent therapeutic implications.
Assuntos
Humanos , Órbita , Tomografia Computadorizada por Raios X , Manobra de Valsalva , Celulite OrbitáriaRESUMO
BACKGROUND: Transesophageal echocardiography (TEE) plays an important role in evaluating cardioembolic sources of emboli. The identification of a patent foramen ovale (PFO) is reportedly improved with TEE compared with transthoracic echocardiography (TTE), but the Valsalva maneuver during TEE may be difficult or suboptimal. The aim of this study was to assess the efficacy of the Valsalva maneuver for PFO diagnosis using TEE compared with TTE by evaluating patients with ischemic stroke referred for echocardiography. METHODS: Only patients able to perform the Valsalva maneuver during TTE were included; efficacy was defined by a 20 cm/sec decrease in transmitral E velocity. A PFO was judged present when microbubbles of agitated intravenous saline were seen in the left chambers within three cycles after right atrial opacification. RESULTS: Of 108 patients (mean age, 55 ± 15 years; 61 men), 48 (44%) were judged to have PFOs by TEE and/or TTE. In 36 patients (33% of the total, 75% of those with PFOs), microbubbles were observed both by TEE and TTE, in seven patients only during TTE, and in five patients only during TEE. In patients able to satisfactorily perform the Valsalva maneuver during TEE, 22 PFOs were found, and two shunts (9%) were missed, whereas in patients unable to perform this maneuver, 26 PFOs were observed, with five shunts missed (19%) (P < .05). When a PFO was missed by TTE, either the echocardiographic window was suboptimal or the shunt was small. CONCLUSIONS: An adequate Valsalva maneuver is crucial for diagnosis of PFO; most patients with stroke may be screened using TTE with contrast and the Valsalva maneuver, with TEE indicated in case of suboptimal transthoracic images.