RESUMO

INTRODUCTION: Laser lead extraction is a well-established method for removing unwanted leads with low morbidity and mortality. In this small series of cases, we documented our experience with venous thrombosis after laser lead extraction. METHODS: Retrospective data of patients who underwent laser lead extraction with postoperative axillo-subclavian vein thrombosis between May 2010 and January 2020 were analyzed. Demographic, operative, clinical, and follow-up characteristics of those patients were collected from our medical database. RESULTS: Six patients underwent percutaneous laser lead extraction. Mean age of the patients was 64±7 years. And four of them were male. A total of 11 leads with a mean age of 92±43.8 months were extracted. Patients presented with painful arm swelling postoperatively. CONCLUSION: Laser lead extraction may lead to symptomatic upper extremity deep venous occlusion.

Assuntos

RESUMO

ABSTRACT Introduction: Laser lead extraction is a well-established method for removing unwanted leads with low morbidity and mortality. In this small series of cases, we documented our experience with venous thrombosis after laser lead extraction. Methods: Retrospective data of patients who underwent laser lead extraction with postoperative axillo-subclavian vein thrombosis between May 2010 and January 2020 were analyzed. Demographic, operative, clinical, and follow-up characteristics of those patients were collected from our medical database. Results: Six patients underwent percutaneous laser lead extraction. Mean age of the patients was 64±7 years. And four of them were male. A total of 11 leads with a mean age of 92±43.8 months were extracted. Patients presented with painful arm swelling postoperatively. Conclusion: Laser lead extraction may lead to symptomatic upper extremity deep venous occlusion.

RESUMO

BACKGROUND AND OBJECTIVES: The aim of this study was to analyze risk factors for failure of subclavian vein catheterization. METHODS: A retrospective analysis of 1562 patients who underwent subclavian vein puncture performed by the same experienced operator at Peking University Cancer Hospital from January 1, 2016 to January 1, 2019 was conducted. The success or failure of subclavian vein catheterization was registered in all cases. Various patient characteristics, including age, gender, body mass index (BMI), preoperative hemoglobin, preoperative hematocrit, preoperative mean corpuscular hemoglobin concentration (MCHC), preoperative albumin, preoperative serum creatinine, puncture needles from different manufacturers and previous history of subclavian vein catheterization were assessed via univariate and multivariate analyses. RESULTS: For the included patients, landmark-guided subclavian vein puncture was successful in 1476 cases and unsuccessful in 86 cases (success rate of 94.5%). Successful subclavian vein catheterization was achieved via right and left subclavian vein puncture in 1392 and 84 cases, respectively. In univariate analyses, age and preoperative hemoglobin were associated with failure of subclavian vein catheterization. In a multivariate analysis, aged more than 60 years was a risk factor while the central venous access with Certofix® was associated with an increased rate of success (p-values of 0.001 and 0.015, respectively). CONCLUSIONS: This study has demonstrated that patient aged more than 60 years was a risk factor for failure of subclavian vein catheterization while the central venous access with Certofix® was associated with an increased rate of success.

Assuntos

RESUMO

Introdução: A canulação venosa central é técnica cuja execução ainda está associada com complicações mecânicas, trombóticas e infecciosas e a guiada por ultrassonografia parece reduzir a incidência dessas complicações, custos e tempo necessário para realizar o procedimento. No entanto raras evidências apoiam a utilização ultrassonografia para a canulação da veia subclávia via supraclavicular. Objetivos: Avaliar se o acesso venoso subclávio via fossa supraclavicular guiado por ultrassonografia em tempo real é seguro como alternativa para obtenção de acessos venosos profundos. Método: Estudo epidemiológico de intervenção, transversal, caracterizado como ensaio clínico, em pacientes de UTI. As variáveis foram: idade, gênero, peso, lateralidade puncionada, número de tentativas de canulação, tempo entre a obtenção da imagem e acesso da veia, profundidade da veia subclávia em relação à pele e complicações durante a colocação e permanência do cateter. Resultados: Realizou-se acessos em 18 pacientes A maioria das punções foram obtidas na primeira ou segunda tentativa compondo 72,2% dos procedimentos, com tempo médio para a execução de 9 min. Observou-se predomínio de profundidades entre 0,63 a 1,09 cm com média de 1 cm. A taxa de sucesso foi de 94,4% com 5,6% de complicações correspondente à uma punção arterial. Não houve nenhuma outra complicação mecânica, trombótica ou infecciosa. Conclusões: O procedimento é seguro, executado em 9 min e, em sua maioria, na primeira ou segunda tentativa com 5,6% de complicações, e profundidade a partir da pele de 1 cm

Introduction: Central venous cannulation is a technique whose execution is still associated with mechanical, thrombotic and infectious complications and ultrasound-guided cannulation seems to reduce the incidence of these complications, costs and time required to perform the procedure. However, rare evidence supports the use of ultrasonography for cannulation of the subclavian vein via the supraclavicular route. Objectives: To assess whether subclavian venous access via the supraclavicular fossa guided by real-time ultrasound is a safe alternative for obtaining deep venous access. Method: Interventional, cross-sectional epidemiological study, characterized as a clinical trial, in ICU patients. The variables were: age, gender, weight, punctured laterality, number of cannulation attempts, time between obtaining the image and accessing the vein, depth of the subclavian vein in relation to the skin, and complications during placement and permanence of the catheter. Results: Accesses were performed in 18 patients. Most punctures were obtained in the first or second attempt, comprising 72.2% of the procedures, with an average time for execution of 9 min. There was a predominance of depths between 0.63 and 1.09 cm with an average of 1 cm. The success rate was 94.4% with 5.6% of complications corresponding to an arterial puncture. There were no other mechanical, thrombotic or infectious complications. Conclusions: The procedure is safe, performed in 9 min and, mostly, in the first or second attempt with 5.6% of complications, and depth from the skin of 1 cm.KEYWORDS: Central venous catheterization. Ultrasound. Subclavian vein.DOI: /10.55684/80.2.26Visão ultrassonográfica verificando-se o fio-guia no lúmen da veia subclávia(LAT=lateral; MED=medial, VSC=veia subclávia; VBC=veia braquicefálica)Mensagem CentralA canulação venosa central é técnica cuja execução ainda está associada com complicações mecânicas, trombóticas e infecciosas, e a guiada por ultrassonografia parece reduzir a incidência dessas complicações, custos e tempo necessário para realizar o procedimentoPerspectivaA obtenção do acesso venoso central subclávio via fossa supraclavicular guiado por ultrassonografia aponta-se como técnica segura executada com tempo médio de 9 min, em sua maioria na primeira ou segunda tentativa, com incidência de complicações menores de 5,6%, e para sua canulação, observou-se profundidade média a partir da pele de 1 cm. O procedimento é seguro e boa alternativa para acesso venoso subclávio.

Assuntos

RESUMO

Thoracic vascular trauma is associated with high mortality and is the second most common cause of death in patients with trauma following head injuries. Less than 25% of patients with a thoracic vascular injury arrive alive to the hospital and more than 50% die within the first 24 hours. Thoracic trauma with the involvement of the great vessels is a surgical challenge due to the complex and restricted anatomy of these structures and its association with adjacent organ damage. This article aims to delineate the experience obtained in the surgical management of thoracic vascular injuries via the creation of a practical algorithm that includes basic principles of damage control surgery. We have been able to show that the early application of a resuscitative median sternotomy together with a zone 1 resuscitative endovascular balloon occlusion of the aorta (REBOA) in hemodynamically unstable patients with thoracic outlet vascular injuries improves survival by providing rapid stabilization of central aortic pressure and serving as a bridge to hemorrhage control. Damage control surgery principles should also be implemented when indicated, followed by definitive repair once the correction of the lethal diamond has been achieved. To this end, we have developed a six-step management algorithm that illustrates the surgical care of patients with thoracic outlet vascular injuries according to the American Association of the Surgery of Trauma (AAST) classification.

El trauma vascular torácico está asociado con una alta mortalidad y es la segunda causa más común de muerte en pacientes con trauma después del trauma craneoencefálico. Se estima que menos del 25% de los pacientes con una lesión vascular torácica alcanzan a llegar con vida para recibir atención hospitalaria y más del 50% fallecen en las primeras 24 horas. El trauma torácico penetrante con compromiso de los grandes vasos es un problema quirúrgico dado a su severidad y la asociación con lesiones a órganos adyacentes. El objetivo de este artículo es presentar la experiencia en el manejo quirúrgico de las lesiones del opérculo torácico con la creación de un algoritmo de manejo quirúrgico en seis pasos prácticos de seguir basados en la clasificación de la AAST. que incluye los principios básicos del control de daños. La esternotomía mediana de resucitación junto con la colocación de un balón de resucitación de oclusión aortica (Resuscitative Endovascular Balloon Occlusion of the Aorta - REBOA) en zona 1 permiten un control primario de la hemorragia y mejoran la sobrevida de los pacientes con trauma del opérculo torácico e inestabilidad hemodinámica.

Assuntos

RESUMO

RESUMEN: El músculo subclavio (MS) guarda estrecha relación con las estructuras neurovasculares (ENV) en el tercio medio de la región clavicular, situación de suma importancia para la realización de procedimientos invasivos de esta región. Pocos estudios han determinado la distancia desde el MS hacia la vena subclavia (VS), arteria subclavia (AS) y plexo braquial (PB). El propósito de este estudio fue valuar la expresión morfológica del MS y su relación con las ENV en una muestra de especímenes cadavéricos frescos. Estudio descriptivo en el que se realizó disección anatómica sobre la región clavicular de 30 especímenes de cadáveres humanos frescos no reclamados del Instituto Nacional de Medicina Legal y Ciencias Forenses, Colombia. Se realizó la caracterización cualitativa y cuantitativa del MS y se determinó la relación del MS con las ENV en la región clavicular. El MS presentó una longitud de 102,4±10,3 mm, con un espesor anteroposterior de 8,8±1,9 mm y superoinferior de 7,0±1,9 mm. El MS se caracterizó así: tipo I en 12 (40 %) especímenes, tipo II en 18 especímenes, tipo IIa: 10 especímenes. No encontramos tipos III y IV. La VS, AS y PB se relacionaron con el MS en el tercio medial y medio de su longitud a una distancia desde el margen superior del MSde 9,4±2,2 mm, 11,3±2,1 mm y 12,0±1,5 mm respectivamente. Los MS se relacionaron con las ENV de la región clavicular en una zona comprendida entre el 36,2±3,6 % y 89,4±4,8 % de su longitud total. Los hallazgos cualitativos y morfométricos de este estudio enriquecen los conceptos anatómicos subclaviculares y son de utilidad para el manejo quirúrgico de fracturas de clavícula.

SUMMARY: The subclavian muscle (MS) is closely related to the neurovascular structures (VNS) in the middle third of the clavicular region, and is critical when performing invasive procedures in this region. Few studies have determined the distance from the MS to the subclavian vein (VS), subclavian artery (AS) and brachial plexus (PB). The purpose of this study was to evaluate the morphological expression of MS and its relationship with VNS in a sample of fresh cadaveric specimens. The study involved the anatomical dissection in the clavicular region of 30 specimens of fresh unclaimed human cadavers from the National Institute of Forensic Medicine and Sciences, Colombia. The qualitative and quantitative characterization of the MS was carried out and the relationship of the MS with the VNS in the clavicular region was determined. The MS presented a length of 102.4 ± 10.3 mm, with an anteroposterior thickness of 8.8 ± 1.9 mm and a superoinferior thickness of 7.0 ± 1.9 mm. The DM was characterized as follows: type I in 12 (40 %) specimens, type II in 18 specimens, type IIa: 10 specimens. We did not find types III and IV. The SV, AS and PB were related to the MS in the medial and middle third of its length at a distance from the upper edge of the MS of 9.4 ± 2.2 mm, 11.3 ± 2.1 mm and 12.0 ± 1,5 mm respectively. The MS were related to the VNS of the clavicular region in an area between 36.2 ± 3.6 % and 89.4 ± 4.8 % of its total length. The qualitative and morphometric findings of this study enrich the subclavicular anatomical concepts and are useful for the surgical management of clavicle fractures.

Assuntos

RESUMO

The cervical rib syndrome occurs when the interscalene triangle is occupied by a cervical rib, displacing the brachial plexus and the subclavian artery forward, which can cause pain and muscle spasms. The objective of this study is to discuss diagnosis of the cervical rib syndrome and treatment possibilities. This therapeutic challenge describes clinical and surgical management of a 37-year-old female patient with upper limb arterial occlusion caused by a cervical rib.

RESUMO

Abstract Thoracic vascular trauma is associated with high mortality and is the second most common cause of death in patients with trauma following head injuries. Less than 25% of patients with a thoracic vascular injury arrive alive to the hospital and more than 50% die within the first 24 hours. Thoracic trauma with the involvement of the great vessels is a surgical challenge due to the complex and restricted anatomy of these structures and its association with adjacent organ damage. This article aims to delineate the experience obtained in the surgical management of thoracic vascular injuries via the creation of a practical algorithm that includes basic principles of damage control surgery. We have been able to show that the early application of a resuscitative median sternotomy together with a zone 1 resuscitative endovascular balloon occlusion of the aorta (REBOA) in hemodynamically unstable patients with thoracic outlet vascular injuries improves survival by providing rapid stabilization of central aortic pressure and serving as a bridge to hemorrhage control. Damage control surgery principles should also be implemented when indicated, followed by definitive repair once the correction of the lethal diamond has been achieved. To this end, we have developed a six-step management algorithm that illustrates the surgical care of patients with thoracic outlet vascular injuries according to the American Association of the Surgery of Trauma (AAST) classification.

Resumen El trauma vascular torácico está asociado con una alta mortalidad y es la segunda causa más común de muerte en pacientes con trauma después del trauma craneoencefálico. Se estima que menos del 25% de los pacientes con una lesión vascular torácica alcanzan a llegar con vida para recibir atención hospitalaria y más del 50% fallecen en las primeras 24 horas. El trauma torácico penetrante con compromiso de los grandes vasos es un problema quirúrgico dado a su severidad y la asociación con lesiones a órganos adyacentes. El objetivo de este artículo es presentar la experiencia en el manejo quirúrgico de las lesiones del opérculo torácico con la creación de un algoritmo de manejo quirúrgico en seis pasos prácticos de seguir basados en la clasificación de la AAST. que incluye los principios básicos del control de daños. La esternotomía mediana de resucitación junto con la colocación de un balón de resucitación de oclusión aortica (Resuscitative Endovascular Balloon Occlusion of the Aorta - REBOA) en zona 1 permiten un control primario de la hemorragia y mejoran la sobrevida de los pacientes con trauma del opérculo torácico e inestabilidad hemodinámica.

RESUMO

Resumo A síndrome da costela cervical ocorre quando o triângulo intercostoescalênico é ocupado por uma costela cervical, deslocando o plexo braquial e a artéria subclávia anteriormente, o que pode gerar dor e espasmo muscular. O objetivo deste estudo é discutir sobre o diagnóstico da síndrome da costela cervical e as possibilidades de tratamento. Este desafio terapêutico descreve a condução clínica e cirúrgica de uma paciente de 37 anos com obstrução arterial em membro superior causada por costela cervical.

Abstract The cervical rib syndrome occurs when the interscalene triangle is occupied by a cervical rib, displacing the brachial plexus and the subclavian artery forward, which can cause pain and muscle spasms. The objective of this study is to discuss diagnosis of the cervical rib syndrome and treatment possibilities. This therapeutic challenge describes clinical and surgical management of a 37-year-old female patient with upper limb arterial occlusion caused by a cervical rib.

Assuntos

RESUMO

OBJECTIVE: To compare the efficacy of blind axillary vein puncture utilizing the new surface landmarks for the subclavian method. METHODS: This prospective and randomized study was performed at two cardiology medical centers in East China. Five hundred thirty-eight patients indicated to undergo left-sided pacemaker or implantable cardioverter defibrillator implantation were enrolled, 272 patients under the axillary access and 266 patients under the subclavian approach. A new superficial landmark was used for the axillary venous approach, whereas conventional landmarks were used for the subclavian venous approach. We measured lead placement time and X-ray time from vein puncture until all leads were placed in superior vena cava. Meanwhile, the rate of success of lead placement and the type and incidence of complications were compared between the two groups. RESULTS: There were no significant differences between the two groups in baseline characteristics or number of leads implanted. There were high success rates for both strategies (98.6% [494/501] vs. 98.4% [479/487], P=0.752) and similar complication rates (14% [38/272] vs. 15% [40/266], P=0.702). Six cases in the control group developed subclavian venous crush syndrome and five had pneumothorax, while neither pneumothorax nor subclavian venous crush syndrome was observed in the experimental group. CONCLUSION: We have developed a new blind approach to cannulate the axillary vein, which is as effective as the subclavian access, safer than that, and also allows to get this vein without the guidance of fluoroscopy, contrast, or echography.

Assuntos

RESUMO

Abstract Objective: To compare the efficacy of blind axillary vein puncture utilizing the new surface landmarks for the subclavian method. Methods: This prospective and randomized study was performed at two cardiology medical centers in East China. Five hundred thirty-eight patients indicated to undergo left-sided pacemaker or implantable cardioverter defibrillator implantation were enrolled, 272 patients under the axillary access and 266 patients under the subclavian approach. A new superficial landmark was used for the axillary venous approach, whereas conventional landmarks were used for the subclavian venous approach. We measured lead placement time and X-ray time from vein puncture until all leads were placed in superior vena cava. Meanwhile, the rate of success of lead placement and the type and incidence of complications were compared between the two groups. Results: There were no significant differences between the two groups in baseline characteristics or number of leads implanted. There were high success rates for both strategies (98.6% [494/501] vs. 98.4% [479/487], P=0.752) and similar complication rates (14% [38/272] vs. 15% [40/266], P=0.702). Six cases in the control group developed subclavian venous crush syndrome and five had pneumothorax, while neither pneumothorax nor subclavian venous crush syndrome was observed in the experimental group. Conclusion: We have developed a new blind approach to cannulate the axillary vein, which is as effective as the subclavian access, safer than that, and also allows to get this vein without the guidance of fluoroscopy, contrast, or echography.

Assuntos

RESUMO

RESUMO A Síndrome do Desfiladeiro Torácico (SDT) é causada pela compressão do plexo braquial, artéria subclávia e veia subclávia na região do desfiladeiro torácico. Estas estruturas podem ser comprimidas entre a clavícula e a primeira costela ou por um número de variações anatômicas. A compressão neurológica é a forma mais comum da síndrome do desfiladeiro torácico. Complicações vasculares ocorrem com pouca frequência. Complicações arteriais geralmente resultam da compressão da artéria subclávia por costela cervical completa. As complicações venosas estão muitas vezes relacionadas à compressão muscular da veia subclávia. A forma neurogênica, anteriormente descrita, é a mais comum, constituindo mais de 95% dos casos. Já a forma venosa representa 2% a 3% e, a arterial, cerca de 1% dos casos. Fatores de risco incluem biótipo e variações individuais, como genética, idade e sexo. No Brasil, não há dados acerca da epidemiologia da SDT. Diante da suspeita de SDT é necessária uma avaliação clínica detalhada, seguida de exames complementares para elucidação da causa. O tratamento é direcionado de acordo com a etiologia e a presença ou não de complicações. A proposta do presente trabalho foi realizar uma revisão narrativa sobre a SDT, versando sobre sua etiologia, fisiopatologia, epidemiologia, avaliação clínica, exames complementares, diagnósticos diferenciais e tratamento.

ABSTRACT The Thoracic Outlet Syndrome (TOS) results from compression of the brachial plexus, the subclavian artery and the subclavian vein in the thoracic outlet region. This compression may take place between the clavicle and the first rib or by a number of anatomical variations. Neurological compression is the most common form of thoracic outlet syndrome. Vascular complications occur infrequently. Arterial complications usually result from compression of the subclavian artery by a complete cervical rib. Venous complications are often related to muscle compression of the subclavian vein. The neurogenic form, previously described, is the most common, constituting more than 95% of cases, while the venous represents 2% to 3%, and the arterial, about 1%. Risk factors include biotype and individual variations such as genetics, age and gender. In Brazil, there are no data on the epidemiology of TOS. Given the suspicion of TOS, a detailed clinical evaluation is necessary, followed by complementary exams to elucidate the cause. The treatment is directed according to the etiology and the presence or absence of complications. The purpose of this study was to perform a narrative review on TOS, focusing on its etiology, pathophysiology, epidemiology, clinical evaluation, complementary exams, differential diagnoses, and treatment.

Assuntos

RESUMO

Abstract Background: Ultrasound (US)-guided central venous catheterization is intended to reduce complications, enhance success rates on the first attempt, and increase accuracy, thus becoming a standard in clinical practice. Objectives: To review the relevant literature on the importance of US as a guide to central venous access and to describe the benefits of this tool and the impact of its use on the safety of the procedure. Methods: A narrative review of various medical literature databases and recognized guidelines (National Guideline Clearinghouse, New Zealand Guidelines, National Institute for Clinical Excellence, Cochrane, and JAMA). Results: High-quality evidence recommends US-guided inter nal jugular vein access as the preferred approach in routine practice. However, different other anatomical sites may be necessary for vascular access depending on the clinical setting. Related complications associated with landmark-guided techni ques range between 0.3% and 18.8% and depend on multiple conditions such as patient characteristics and access site. US has been associated with a reduction in the relative risk of complica tions, failed attempts, and failed first attempt of 57%, 86%, and 41%, respectively. Conclusion: US should be used routinely in central vascular access. Current evidence supports this recommendation for the internal jugular vein approach, but no so for the other approaches, in cases of difficult or failed access using conventional approaches.

Resumen Introducción: El catéter guiado por ultrasonido busca impactar en la incidencia de complicaciones, aumentar las tasas de éxito en el primer intento, e incrementar la precisión; convirtiéndose en estándar en la práctica clínica. Objetivo: Elaborar una revisión de la literatura más relevante sobre la importancia del ultrasonido (US) como guía para la canulación de accesos vasculares centrales y hacer una descripción sobre los beneficios de esta herramienta y cómo impacta en la seguridad del procedimiento Métodos: Revisión narrativa; se consultaron diferentes bases de datos, como National Guideline Clearinghouse, New Zeland Guidelines, Medline, NICE, Cochrane, JAMA. Resultados: El abordaje para un catéter venoso central que tiene suficiente evidencia para recomendar su uso rutinario guiado por US, es en vena yugular interna, pero no quiere decir que ésta deba prevalecer sobre situaciones en las cuales esté indicado un catéter venoso central por otra vía. Las complicaciones de las técnicas guiadas por referencias anatómicas oscilan entre 0,3% a 18,8%, por múltiples variables como la población de pacientes, sitio de inserción; se han impactado con el uso del US en reducción del riesgo relativo de complicaciones, intentos fallidos y fracaso primer intento en 57%, 86% y 41%, respectiva mente. Conclusión: El ultrasonido debe ser rutinario para obtener un acceso vascular central, la evidencia actual soporta esta reco mendación en vena yugular interna, no tanto así para los demás abordajes; en aquellos casos de canalización difícil o fallida por métodos convencionales, en cualquiera de las vías descritas hay que utilizar el ecógrafo como herramienta para garantizar el éxito.

Assuntos

RESUMO

Resumen ANTECEDENTES: la colocación del catéter venoso central es una parte esencial en el tratamiento de los pacientes en muchos escenarios clínicos. El ultrasonido en tiempo real se ha convertido en una herramienta invaluable debido a su seguridad, disponibilidad y proporciona información detallada en relación con la anatomía de los órganos internos, en la colocación de catéteres venosos centrales favorece las tasas de éxito y disminuye el número de complicaciones. OBJETIVO: determinar si la colocación de catéter venoso central guiado por ultrasonido en tiempo real disminuye el número de complicaciones en comparación con la técnica por referencias anatómicas. MATERIAL Y MÉTODO: estudio observacional, ambispectivo, longitudinal en el que se seleccionaron adultos mayores de 18 años de edad que requirieron un catéter venoso central durante su hospitalización en el Hospital General Naval de Alta Especialidad (HOSGENAES) guiado por ultrasonido en tiempo real y por referencias anatómicas de enero de 2014 a febrero de 2016. Los datos se recabaron de los expedientes clínicos siempre y cuando estuvieran completos. Las variables observadas fueron el tipo de complicaciones, tipo de catéter, sitio de inserción, operador experto, servicio que instaló los catéteres venosos centrales, si fue de primera vez o subsecuente, número de intentos, accesos exitosos y los diagnósticos de ingreso, edad, género e índice de masa corporal. RESULTADOS: se incluyeron 464 pacientes de los que 351 (76%) fueron guiados por referencias anatómicas y en 113 (24%) por ultrasonido en tiempo real. Se reportaron 211 complicaciones, 84% en el grupo de referencias anatómicas y 16% en el grupo de ultrasonido en tiempo real con razón de momios (OR) de 2.36. La complicación más frecuente fue la de tipo mecánica, principalmente la mala colocación, en el grupo de referencias anatómicas representó 51% versus 12% en el grupo de ultrasonido en tiempo real con OR de 9.5. El 100% de los catéteres venosos centrales guiados por ultrasonido en tiempo real fueron exitosos vs 87% de los guiados por referencias anatómicas. CONCLUSIONES: el ultrasonido en tiempo real mejora las tasas de éxito, reduce el número de intentos y disminuye las complicaciones asociadas con la inserción de un catéter venoso central.

Abstract BACKGROUND: The placement of central venous catheter (CVC) is an essential part in the management of patients in many clinical scenarios. Ultrasonography in real time (USRT) has become an invaluable tool because of its safety and availability and provides detailed information regarding the anatomy of the internal organs, in the placement of central venous catheters (CVCs) encouraging success rates and decreasing the number of complications. OBJECTIVE: To determine whether the placement of central venous catheter guided by real-time ultrasound decreases the number of complications compared with the technique for anatomical references. MATERIAL AND METHOD: An observational, retrospective and prospective, longitudinal study was done selecting adults over 18 years old who required a CVC during their hospitalization at the Naval General Hospital of High Specialty (HOSGENAES), Mexico City, led by USRT and anatomical references from January 2014 to February 2016. Data were gathered from the files provided they were complete. The variables observed were the kind of complications, type of catheter insertion site, skilled operator, service that installed the CVCs, if it was first or subsequent, number of attempts, successful access and admission diagnoses, age, gender and body mass index (BMI). RESULTS: Four hundred sixty-four patients were included, of which 351 (76%) were guided by anatomical and 113 (24%) by USTR references. A total of 211 complications occurred; 84% in the group of anatomical references and 16% were reported in the group USTR with OR of 2.36. The most common complication was mainly mechanical type misplacement accounting for 51% in the group of anatomical references versus 12% in the USRT with OR of 9.5375. The 100% of CVCs guided by USTR were successful vs 87% guided by anatomical references. CONCLUSIONS: Ultrasonography in real time improves success rates, reduces the number of attempts and reduces complications associated with the insertion of a central venous catheter.

RESUMO

Unilateral breast edema may have different causes that vary from malignant to benign diseases. The  knowledge of the main etiologies, associated to a detailed clinical examination and to radiological findings, is important in order to establish the correct diagnosis and determine the appropriate management of the patient. This article will report the case of a patient with lung cancer who developed unilateral breast edema; the main differential diagnoses will also be discussed.

O edema mamário unilateral pode ter diferentes causas, que variam desde doenças malignas até benignas. O conhecimento das principais etiologias, associado ao exame clínico detalhado e aos achados radiológicos, é importante para que se estabeleça o diagnóstico correto, e para que se determine o manejo adequado do paciente. Neste artigo, será relatado o caso de uma paciente com câncer de pulmão que desenvolveu edema mamário unilateral; também serão discutidos os principais diagnósticos diferenciais.

RESUMO

ABSTRACT Vascular punctures are often necessary in critically ill patients. They are secure, but not free of complications. Ultrasonography enhances safety of the procedure by decreasing puncture attempts, complications and costs. This study reviews important publications and the puncture technique using ultrasound, bringing part of the experience of the intensive care unit of the Hospital Israelita Albert Einstein, São Paulo (SP), Brazil, and discussing issues that should be considered in future studies.

RESUMO Punções vasculares são muitas vezes necessárias em pacientes gravemente enfermos. São seguras, mas não isentas de complicações. A ultrassonografia associada à técnica de punção gera diminuição do número de tentativas, de complicações e de custos. O presente artigo revisou importantes publicações sobre o tema, bem como técnicas de punções, trazendo parte da experiência do centro de terapia intensiva de adultos do Hospital Israelita Albert Einstein, em São Paulo (SP) e discutindo tópicos que devem ser melhor explorados em estudos futuros.

Assuntos

RESUMO

BACKGROUND: Although totally implantable venous access devices (TIVAD) are increasingly being used in oncology patients, more robust evidence about the best technique is lacking, especially regarding to ultrasound (US) guided puncture. METHODS: One hundred ten patients with indication of intravenous chemotherapy were randomly assigned to TIVAD implant through US-guided internal jugular vein (USG) puncture (39) or internal jugular vein blindly (IJB) (36) or subclavian vein blindly (SCB) (35). Procedure data and complications were prospectively recorded within 30 days of the procedure. RESULTS: All patients completed the follow up. Immediate complication rate was 5.1%, 13.9%, and 0% in the USG, IJB, and SCB groups, respectively (P = 0.05). First attempt success rate was 79.5% in the USG, 52.8% in the IJB and 47.2% in the SCB group (P = 0.012). Technique failure was observed in 2.6%, 22.2%, and 8.6% of the population in the USG, IJB, and SCB, respectively (P = 0.021). Early complication rate was 5.1% in USG group, 2.8% in the IJB, and 0% in the SCB (P = 0.401). CONCLUSION: The findings of our study suggest superiority of the USG approach in terms of first puncture success rate and technique failure, without increasing the procedure duration. Long-term follow-up results should help to further clarify the current debates.

Assuntos

RESUMO

BACKGROUND AND OBJECTIVE: The present study aimed to evaluate whether right subclavian vein (SCV) catheter insertion depth can be predicted reliably by the distances from the SCV insertion site to the ipsilateral clavicular notch directly (denoted as I-IC), via the top of the SCV arch, or via the clavicle (denoted as I-T-IC and I-C-IC, respectively). METHOD: In total, 70 SCV catheterizations were studied. The I-IC, I-T-IC, and I-C-IC distances in each case were measured after ultrasound-guided SCV catheter insertion. The actual length of the catheter between the insertion site and the ipsilateral clavicular notch, denoted as L, was calculated by using chest X-ray. RESULTS: L differed from the I-T-IC, I-C-IC, and I-IC distances by 0.14±0.53, 2.19±1.17, and -0.45±0.68cm, respectively. The mean I-T-IC distance was the most similar to the mean L (intraclass correlation coefficient=0.89). The mean I-IC was significantly shorter than L, while the mean I-C-IC was significantly longer. Linear regression analysis provided the following formula: Predicted SCV catheter insertion length (cm)=-0.037+0.036×Height (cm)+0.903×I-T-IC (cm) (adjusted r(2)=0.64). CONCLUSION: The I-T-IC distance may be a reliable bedside predictor of the optimal insertion length for a right SCV cannulation.

RESUMO

Background and objective: The present study aimed to evaluate whether right subclavian vein (SCV) catheter insertion depth can be predicted reliably by the distances from the SCV insertion site to the ipsilateral clavicular notch directly (denoted as I-IC), via the top of the SCV arch, or via the clavicle (denoted as I-T-IC and I-C-IC, respectively). Method: In total, 70 SCV catheterizations were studied. The I-IC, I-T-IC, and I-C-IC distances in each case were measured after ultrasound-guided SCV catheter insertion. The actual length of the catheter between the insertion site and the ipsilateral clavicular notch, denoted as L, was calculated by using chest X-ray. Results: L differed from the I-T-IC, I-C-IC, and I-IC distances by 0.14±0.53, 2.19±1.17, and -0.45 ±0.68 cm, respectively. The mean I-T-IC distance was the most similar to the mean L (intraclass correlation coefficient = 0.89). The mean I-IC was significantly shorter than L, while the mean I-C-IC was significantly longer. Linear regression analysis provided the following formula: Predicted SCV catheter insertion length (cm) = -0.037 + 0.036 × Height (cm) + 0.903 × I-T-IC (cm) (adjusted r2 =0.64). Conclusion: The I-T-IC distance may be a reliable bedside predictor of the optimal insertion length for a right SCV cannulation. .

Justificativa e objetivo: O presente estudo teve como objetivo avaliar se a profundidade de inserção de cateter em veia subclávia (VSC) direita pode ser prevista de forma confiável pelas distâncias do local de inserção na VSC até a incisura clavicular ipsilateral (I-IC), passando diretamente pela parte superior do arco da VSC ou da clavícula (denominadas i-T-IC e i-C-IC, respectivamente). Método: No total, 70 cateterismos de VSC foram estudados. As distâncias I-IC, I-T-IC e I-C-IC de cada caso foram mensuradas após a inserção do cateter guiada por ultrassom. O comprimento do cateter entre o local de inserção e a incisura clavicular ipsilateral (L) foi calculado por meio de radiografia. Resultados: As diferenças em centímetros de L em relação às distâncias I-T-IC, I-C-IC e I-IC foram de 0,14±0,53; 2,19±1,17 e 0,45±0,68 respectivamente. A média de I-IC foi significativamente menor que L, enquanto a média de I-C-IC foi significativamente maior. A análise de regressão linear forneceu a seguinte fórmula: Comprimento previsto da inserção de cateter em VSC (cm) = -0,037 + 0,036 × Altura (cm) + 0,903 × I-T-IC (cm) (r2 ajustado = 0,64). Conclusão: A distância I-T-IC pode ser um preditivo confiável do comprimento de inserção ideal para canulação em VSC direita. .

Introducción y objetivo: El presente estudio tuvo como objetivo evaluar si la profundidad de inserción de catéter en vena subclavia (VSC) derecha puede ser prevista de forma confiable por las distancias del lugar de inserción en la VSC hasta la incisión clavicular ipsilateral (denominada I-IC), pasando directamente por la parte superior del arco de la VSC o de la clavícula (denominadas I-T-IC y I-C-IC, respectivamente). Método: En total se estudiaron 70 cateterismos de VSC. Las distancias I-IC, I-T-IC e I-C-IC de cada caso fueron medidas después de la inserción del catéter guiada por ultrasonido. La extensión del catéter entre la región de inserción y la incisión clavicular ipsilateral, denominada L, fue calculada por medio de radiografía. Resultados: Las diferencias en centímetros de L con relación a las distancias I-I- IC, I-C-IC e I-IC fueron de 0,14±0,53, 2,19±1,17 y 0,45±0,68, respectivamente. La media de I-IC fue significativamente menor que L, mientras que la media de I-C-IC fue significativamente mayor. El análisis de regresión linear suministró la siguiente fórmula: Extensión prevista de la inserción de catéter en VSC (cm) = -0,037 + 0,036 × altura (cm) + 0,903 × I-T-IC (cm) (r2 ajustado = 0,64). Conclusión: La distancia I-T-IC puede ser un predictor confiable de la extensión de la inserción ideal para la canalización en la VSC derecha. .

Assuntos