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Changes in Left Ventricular Function Assessed by 3D Echocardiography During Severe Central Hypovolemia in Healthy Humans.
Echocardiography
March 2025
Department of Physical Therapy, Faculty of Health Science, Kyorin University, Mitaka City, Tokyo, Japan.
Purpose: Central hypovolemia is considered to lead to a compensatory increase in cardiac contractility. From a physiological perspective, left ventricular (LV) twisting motion, which plays an important role in maintaining cardiac output, should be enhanced during central hypovolemia, but previous studies have shown inconsistent findings. Using 3D echocardiography, we tested the hypothesis that the LV twisting and untwisting motion would be enhanced during severe central hypovolemia.
View Article and Find Full Text PDFNoninvasive dynamic vascular imaging: arterial spin labeling-based noncontrast magnetic resonance digital subtraction angiography for cerebral disease diagnoses.
Jpn J Radiol
March 2025
Department of Radiology, Kyorin University Faculty of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan.
Digital subtraction angiography (DSA) is the gold standard for assessing cerebrovascular hemodynamics. DSA is predominantly utilized to evaluate the hemodynamic information of various cerebral diseases. However, DSA is relatively invasive and involves radiation exposure and risks of allergic reactions or renal dysfunction related to iodine-based contrast agents.
View Article and Find Full Text PDFKinetic Energy Measured by 4D Flow Cardiac MRI in Evaluating Intraventricular Hemodynamics: A Systematic Review.
J Magn Reson Imaging
March 2025
Department of Radiology, Central Hospital of Dalian University of Technology, Dalian, People's Republic of China.
Unlabelled: Four-dimensional flow cardiovascular magnetic resonance (4D Flow cardiac MRI) is an advanced non-invasive imaging technology, and its derived kinetic energy (KE) blood flow parameters have been confirmed as a potential biomarkers for assessing ventricular hemodynamics. This review synthesizes details on the methodology, clinical significance, and current status of studies focused on quantifying KE parameters of the ventricle using 4D Flow cardiac MRI, providing an objective foundation for further exploration of the value of KE in cardiac diseases.
Study Type: retrospective.
Comparing Behavioral and Neural Activity Changes During Laparoscopic and Robotic Surgery Trainings.
J Surg Educ
March 2025
School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania.
Objective: This study aims to compare the cognitive workload levels of general surgery residents by measuring prefrontal cortex hemodynamic activity while performing a similar task using robotic-assisted surgery (RAS) and laparoscopic surgery simulators.
Design: The study was conducted with 22 general surgery residents who completed a peg transfer task in simulated laparoscopic and RAS training environments. Participants' performance and neurophysiological data were collected over a 1-month period.
Practice and Outcome Trends of Peritoneal Dialysis in Chronic Kidney Disease Patients With Liver Cirrhosis and Chronic Heart Failure Complicated by Symptomatic Ascites-A Scoping Review.
Nephrology (Carlton)
March 2025
Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
Background: The rising growth of patients with end-stage kidney disease (ESKD) associated with chronic liver disease (CLD) and refractory chronic heart failure (CHF) associated with advanced chronic kidney disease (CKD) complicated by ascites presents serious renal replacement therapy (RRT) challenges. Haemodialysis is often poorly tolerated owing to increased hemodynamic instability, bleeding, and encephalopathy risks. Peritoneal dialysis (PD) has emerged as a promising alternative, but its adoption and efficacy are not consistently supported by existing literature, and there lacks guideline consensus.
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