Lipectomy as an alternative for superficialization of autologous AVF in obese patients: experience of a referral center in Amazon.

Background: The preferred vascular access for hemodialysis is a native arteriovenous fistula (AVF) because it offers the best results in the short and long terms, lower morbidity and mortality, and has additional advantages in relation to central venous catheters or arteriovenous grafts. However, obesity can present an additional challenge because of the barrier of subcutaneous cellular tissue covering the surface of the vein to be punctured.

Objectives: The authors review their experience with excision of subcutaneous tissue (lipectomy) overlying upper arm cephalic vein arteriovenous fistulas in obese patients.

Prognostic factors for femoropopliteal vascular injuries: surgical decisions matter.

Background: Lower limbs are frequently involved in vascular trauma, but it is still not clear which factors lead to unfavorable clinical outcomes.

Objectives: To determine the clinical profile of patients with femoropopliteal injuries, the trauma mechanisms, and treatment and identify which factors led to unfavorable outcomes.

Methods: A retrospective study based on the medical records of patients treated from 2017 to 2021.

Incidental cardiovascular findings on chest CT scans requested for suspected COVID-19.

Background: Computed tomography scans of the chest are often requested as a complementary examination to investigate a clinical suspicion of pulmonary disease caused by the novel coronavirus 19 (COVID-19).

Objectives: Our objective was to analyze the prevalence of incidental cardiovascular findings on chest CT scans requested to assess radiological signs suggestive of COVID-19 infection.

Methods: This cross-sectional, descriptive, and retrospective study reviewed 1,444 chest tomographies conducted in the Radiology department of the Hospital de Clínicas Gaspar Vianna, from March 1 to July 30, 2020, describing the prevalence of images suggestive of viral pneumonia by COVID-19 and incidental pulmonary and cardiovascular findings.

Age and sex and their influence on the anatomy of the abdominal aorta and its branches.

Background: It is not clear how patients' age and sex influence the anatomy of the aorta and its branches.

Objectives: To determine the most frequent anatomical patterns of diameter and angulation of the abdominal aorta and its branches and the influence of patients' sex and age on these patterns.

Methods: CT scans with intravenous contrast from 157 patients were analyzed.

Development and Validation of an Application for Follow-up of Patients Undergoing Dialysis: NefroPortátil.

Objectives: To develop the NefroPortatil mobile application (app) and evaluate its effects on the management of patients undergoing dialysis.

Methods: The first stage of the work was the development, installation, and establishment of the instructions to use the phone app as an instrument to aid in the control of fluid and food intake of 52 patients undergoing dialysis. In the second stage, the patients were monitored for 3 months and evaluated using questionnaires to measure the improvement in quality of life (Kidney Disease Quality of Life Instrument) and self-management of disease (Perceived Medical Condition Self-Management Scale) by the app.

Prior exercise protects against oxidative stress and motor deficit in a rat model of Parkinson's disease.

This study investigated if a prior long-term physical exercise protocol protects the substantia nigra and the striatum against oxidative stress and motor deficits in a Parkinson Disease model induced by 6-hydroxydopamine. Three animal treatment groups were included in the study: sham; 6-hydroxydopamine and 6-hydroxydopamine/exercise. Previously to the intrastriatal lesion by 6-hydroxydopamine, rats in the exercise groups performed a swimming program for 18 weeks.

Vascular trauma in the Amazon: updating the challenge.

Objective: to evaluate the epidemiological data of patients operated on due to vascular trauma at a referral hospital in Pará state, to determine the variables that increase the risk of death, and to make a comparative analysis with the results previously published by the same institution.

Methods: an analytical retrospective study was performed through data collection from patients operated due to vascular injuries, between March 2013 and March 2017. Demographic and epidemiological data, such as the mechanism and topography of the lesion, distance between the trauma site and the hospital, and type of treatment and complications, were analyzed.

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Background: Abdominal aortic aneurysms (AAAs) are the most common. The annual incidence of AAA rupture is eight cases per 100,000 inhabitants. Incidental detection can benefit patients if diameter is monitored and the correct treatment provided.

Vascular trauma in the Amazon - the challenge of great distances.

Objective: to evaluate the incidence of unfavorable outcomes in vascular trauma patients and their possible correlation to the distance between the city where the injury was sustained and the hospital where the patient received definitive treatment.

Methods: descriptive and retrospective study. Data were collected from medical records of patients submitted to surgical procedures for arterial or venous injuries from February 2011 to February 2013 at the only trauma center providing vascular surgery in a vast area of the Amazon region.