Point-of-care ultrasonography in nephrology: a cross-sectional national survey among Brazilian nephrologists.

INTRODUCTION: Point-of-care ultrasonography (US) (POCUS) has been used in several specialties, particularly in medical emergency. Despite the confirmation of its numerous benefits, the use of POCUS is still timid in nephrology. In the present study, we aim to investigate the use of POCUS by Brazilian nephrologists. METHODS: A survey carried out among the members of the Brazilian Society of Nephrology, through institutional e-mail, using the SurveyMonkey platform. We included 12 self-administered questions, which answers were given anonymously. RESULTS: It was evident that the majority (64%) of the participants did not have the opportunity to practice US during their nephrological training in their residency, specialization, or even in internships; those with experience with US use the method mainly for implanting central vascular accesses (68%), performing a renal biopsy (58%) and evaluating renal morphology (50%); and the main barriers for nephrologists who do not yet use US are the high price of US machines (26%) and the lack of time to learn about US (23%). Also, POCUS use for examinations of other organs, such as the lung (31%) and heart (18%), which are fundamental in the cardiovascular and volume assessment of patients with kidney diseases, is even more limited. However, 95% of the participants expressed an interest in learning POCUS for use in their medical practice. CONCLUSION: Most of the Brazilian nephrologists interviewed were not trained in US; however, almost all of the research participants expressed an interest in learning to use POCUS in nephrological practice.

Uso da ultrassonografia "point-of-care" na prática nefrológica: Transpondo os limites do trato urinário / Point-of-care ultrasound in the nephrological practice: Beyond the limits of the urinary tract

Introdução: O modelo tradicional de referenciamento ao radiologista para a realização de ultrassonografia ou ecografia tem se modificado nos últimos 25 anos. Com a diminuição do tamanho e do custo dos aparelhos de ultrassom (hoje já existem mais de 10 unidades "handheld" no mercado), cada vez mais médicos de diferentes especialidades estão utilizando a ultrassonografia a beira do leito, como extensão do exame físico. Objetivo: Destacar a importância do uso da ultrassonografia a beira do leito na avaliação objetiva e ampliada dos pacientes renais. Materiais e Métodos:Revisão narrativa com seleção dos estudos e a interpretação das informações baseados na escolha arbitrária dos autores. Resultados: Na nefrologia, a ecografia ainda tem sido pouco utilizada, sendo o seu maior uso na identificação renal e venosa quando da realização da biópsia renal e do acesso vascular, respectivamente. Contudo, o papel fundamental dos rins no controle da volemia e da pressão arterial, eventualmente quando se tornam disfuncionais, demanda avaliações multiorgânicas. Assim, a utilização da ultrassonografia na nefrologia não deveria se restringir aos procedimentos mencionados ou a avaliação da retenção urinária. As ecografias "focadas" dos pulmões, do coração e da veia cava inferior permite o diagnóstico de complicações frequentes observadas nas doenças renais, como por exemplo, congestão pulmonar, derrame pleural, pneumotórax, disfunção sistólica, diastólica, derrame pericárdico e, assim, incorporadas como extensão do exame físico em nefrologia. Conclusão: A multifuncionalidade renal implica em grande número de complicações renais e extra-renais quando os rins são funcionalmente acometidos, o que justifica o uso da POCUS não somente na avaliação do trato urinário, mas também dos pulmões, coração, veia cava inferior, entre outros.

Introduction: The traditional model of reference ultrasound to radiologist has changed over the past 25 years. With the reductions in size and cost of ultrasound devices (today there are more than 10 handheld units on the market), medical specialists are increasingly using bedside ultrasound as an extension of the physical examination. Objective:To highlight the importance of using bedside ultrasound in the objective and expanded evaluation of renal patients. Material and Methods: Narrative review with study selection and interpretation of information based on arbitrary choice of authors. Results: In nephrology, ultrasound has not been widely used, and its major uses are in renal and venous identifications in renal biopsy and vascular access, respectively. However, the fundamental role of the kidneys in controlling body volume and blood pressure, eventually when they become dysfunctional, requires multiorgan evaluations. Thus, the use of ultrasound in nephrology should not be restricted to the procedures mentioned or the assessment of urinary retention. "Focused" ultrasound of the lungs, heart, and inferior vena cava allows the diagnosis of frequent complications observed in renal diseases, such as pulmonary congestion, pleural effusion, pneumothorax, systolic and diastolic dysfunction, pericardial effusion, and thus be incorporated as extension of physical examination in nephrology. In the present review, the authors highlight the importance of using bedside ultrasound in the objective and expanded evaluation of renal patients. Conclusion: Renal multifunctionality implies a large number of renal and extrarenal complications when the kidneys are functionally affected, which justifies the use of POCUS not only in the evaluation of the urinary tract, but also in the lungs, heart, inferior vena cava, among others.

Point-of-care ultrasound evaluation and puncture simulation of the internal jugular vein by medical students.

OBJECTIVES: To show that medical students can evaluate the internal jugular vein (IJV) and its anatomical variations after rapid and focused training. We also aimed to evaluate the success rate of IJV puncture in simulation following traditional techniques (TTs) and monitored via ultrasound (US). MATERIALS AND METHODS: Six medical students without experience with US were given 4 h of theoretical-practical training in US, and then evaluated the IJV and common carotid artery (CCA) of 105 patients. They also simulated a puncture of the IJV at a demarcated point, where a TT was theoretically performed. RESULTS: Adequate images were obtained from 95% of the patients; the IJV, on the right side, was more commonly found in the anterolateral position in relation to the CCA (38%). On the left side, the most commonly position observed was the anterior (36%). The caliber of the IJV relative to the CCA greatly varied. The success rate in the IJV puncture simulation, observed with US, by the TTs was 55%. CONCLUSION: The training of medical students to recognize large neck vessels is a simple, quick, and feasible task and that can be integrated into the undergraduate medical curriculum.

Traditional and ultrasound physical examinations: a hybrid approach to improve clinical care.

Point-of-care ultrasonography, which is performed at the bedside by physicians who are not specialists in imaging, has become possible thanks to recent technological advances that have allowed for a device with greater portability while maintaining image quality. The increasing use of point-of-care ultrasonography in different specialties has made it possible to expand physical examinations, make timely decisions about the patients and allows the performance of safer medical procedures. In this review, three cases from our experience are presented that highlight the use of point-of-care ultrasonography by clinicians. Bedside ultrasonography is a convenient modality used in a clinical setting to aid in early diagnosis of several common conditions. It is suggested that a hybrid approach of physical examination and point-of-care ultrasonography in the everyday clinical practice is an inevitable change of paradigm that is improving quality of care in a variety of clinical settings.

Homemade ultrasound phantom for simulation of hydronephrosis.

In this article, we describe the development of a simple and inexpensive simulation phantom as a surrogate of human hydronephrosis for the identification of urinary tract obstruction at bedside to be used in undergraduate training of medical students.

Factors Associated With Functional Capacity in Hemodialysis Patients.

Hemodialysis patients have a marked decrease in functional capacity when compared to healthy individuals. We evaluated the factors associated with functional capacity in hemodialysis patients. A total of 102 hemodialysis patients were evaluated. The patients were submitted to a 6-min walk test, peripheral muscle strength tests, and an evaluation of quality of life, anxiety, and depression. The laboratory data were measured. The 6-min walk test distance correlated significantly with age, educational level, hemoglobin, creatinine, number of comorbidities, peripheral muscle strength, and some domains of SF-36 quality of life questionnaire and depression (P < 0.05). Multiple linear regression showed that educational level, hemoglobin, peripheral muscle strength, and depression significantly affected the 6-min walk test distance (P < 0.05). The multiple correlation coefficient was 0.74, and the squared multiple correlation coefficient adjusted was 0.52. In conclusion, functional capacity was significantly associated with educational level, hemoglobin, peripheral muscle strength, and depression in hemodialysis patients.