Results: 51

Microcirculatory changes as a hallmark of aging in the heart and kidney

Int. j. morphol; 41 (2), 2023
SUMMARY: Changes in the microcirculation of multiple tissues and organs have been implicated as a possible mechanism in physiological aging. In particular, vascular endothelial growth factor is a secretory protein responsible for regulating angiogenesis via altering endothelial proliferation, survival, m...

Mean platelet volume and neutrophil to lymphocyte ratio in patients with tinnitus: a case-control study

Abstract Introduction: Different theories have been proposed on the etiology of tinnitus, including metabolic and audiologic causes. We suggest that mean platelet volume and neutrophil to lymphocyte ratio levels change in tinnitus, indicating microcirculatory disturbance and inflammatory process in the ...

Effects of dexmedetomidine on hemodynamic, oxygenation, microcirculation, and inflammatory markers in a porcine model of sepsis

Acta cir. bras; 37 (7), 2022
Purpose: To determine whether dexmedetomidine aggravates hemodynamic, metabolic variables, inflammatory markers, and microcirculation in experimental septic shock. Methods: Twenty-four pigs randomized into: Sham group (n = 8), received saline; Shock group (n = 8), received an intravenous infusion of Esc...

Comparação entre Dois Escores de Risco quanto à Predição de Obstrução Microvascular Coronariana durante a Intervenção Percutânea Primária

Arq. bras. cardiol; 116 (5), 2021
Resumo Fundamento: Para pacientes com infarto do miocárdio com elevação do segmento ST (IAMCST) que sofrem de obstrução coronariana microvascular funcional e estrutural (OCM) subsequente, nenhuma abordagem terapêutica específica e definitiva de atenuação foi comprovada como válida em testes de...

Hands Free 3. c Technique - Step by Step Maximizes the Duration of Sublingual Microcirculatory Image - A Prognosis to Monitor Microcirculation in Patients with Covid-19 and Sepsis

The sublingual area is the most used site to assess microcirculation in critically ill patients at bedside. The prerequisite for microcirculation evaluation, using HVM imaging (Handheld Vital Microscopy), is to ensure measurements free of image artifacts, confirming an adequate analysis of blood flow. Ho...

Hemodynamic monitoring with two blood gases: "a tool that does not go out of style"

Rev. colomb. anestesiol; 49 (1), 2021
Abstract Hemodynamic monitoring of a critically ill patient is an indispensable tool both inside and outside intensive care; we currently have invasive, minimally invasive and non-invasive devices; however, no device has been shown to have a positive impact on the patient's evolution; arterial and venous...

Hands Free Technique: New Tool Possibility for Image Capture of Sublingual Microcirculation with Handheld Vital Microscopy - HVM

New microcirculatory imaging techniques allowed direct observation of microcirculation at the bedside. This study presents a new device that assists the operator with the unprecedented Hands Free technique. To this end, a replica of Handheld Vital Microscopy was developed to simulate the method of captur...

Impacto da transfusão de eritrócitos no transporte e no metabolismo de oxigênio em pacientes com sepse e choque séptico: uma revisão sistemática e metanálise

RESUMO Considera-se que a transfusão de eritrócitos melhora a respiração celular durante o choque séptico. Contudo, seu impacto agudo no transporte e no metabolismo de oxigênio nessa condição ainda é amplamente debatido. O objetivo deste estudo foi avaliar o impacto da transfusão de eritrócito...

Dietary supplementation with whey protein improves systemic microvascular function in heart failure patients: a pilot study

Braz. j. med. biol. res; 54 (6), 2021
Endothelial dysfunction is a well-known component of the pathophysiology of heart failure (HF), with proven prognostic value. Dietary supplementation with whey protein (WP) has been widely used to increase skeletal muscle mass, but it also has vascular effects, which are less understood. This study aimed...

Nailfold capillaroscopy and microvascular involvement in Diabetes Mellitus

Objective: to study the relationship between microvascular lesions of Diabetes Mellitus and alterations in the nailfold capillaroscopy. Subjects and Methods: cross-sectional study including 140 individuals (70 with Diabetes Mellitus and 70 controls). Epidemiological and clinical variables were collected ...