We update a cardiopulmonary (CP) model previously developed by our group, more convincingly validate the model with additional hemodynamic and echocardiographic data, and demonstrate the utility of the model by extending it to the simulation of left ventricular diastolic dysfunction (LVDD) via a simple parameter change. The model has considerable potential for the characterization of complex cardiopulmonary diseases such as right or left ventricular failure, valve dysfunction, primary pulmonary hypertension, and acute respiratory distress syndrome (ARDS).
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http://dx.doi.org/10.1109/IEMBS.2006.259644 | DOI Listing |
Magn Reson Med
December 2024
Department of Radiology, Stanford University School of Medicine, Stanford, California, USA.
Purpose: To measure and validate elevated succinate in brain during circulatory arrest in a piglet model of cardiopulmonary bypass.
Methods: Using data from an archive of 3T H MR spectra acquired in previous in-magnet studies, dynamic plots of succinate, spectral simulations and difference spectra were generated for analysis and validation.
Results: Elevation of succinate during circulatory arrest was observed and validated.
Front Cardiovasc Med
December 2024
Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
Background: Coronary artery bypass grafting (CABG) surgery has been a widely accepted method for treating coronary artery disease. However, its postoperative complications can have a significant effect on long-term patient outcomes. A retrospective study was conducted to identify before and after surgery that contribute to postoperative stroke in patients undergoing CABG, and to develop predictive models and recommendations for single-factor thresholds.
View Article and Find Full Text PDFFront Med (Lausanne)
December 2024
Department of Cardiology, The University-Town Hospital of Chongqing Medical University, Chongqing, China.
Purpose: To systematically evaluate the clinical efficacy and safety of targeted drugs in patients with pulmonary arterial hypertension (PAH) with cardiac function grades III-IV, and conduct a meta-analysis.
Methods: Two researchers independently searched the PubMed, EMBASE, and Cochrane Library databases for relevant studies, with the search period extending from the establishment of the databases to March 2024. Meta-analysis was performed using statistical software Review Manager 5.
Can J Kidney Health Dis
December 2024
Division of Nephrology, Centre Hospitalier de l'Université de Montréal, QC, Canada.
Background: Acute kidney injury (AKI) occurs in up to 50% of cardiac surgical patients and is often hemodynamically mediated. Point-of-care ultrasound is a non-invasive tool that has the potential to characterize intrarenal hemodynamics and predict the risk of AKI.
Objectives: We aimed to determine the predictive characteristics of intrarenal arterial and venous Doppler markers for postoperative AKI in cardiac surgical patients.
World J Cardiol
December 2024
Department of Heart Lung Transplantation and Mechanical Circulatory Support, Apollo Hospitals, Chennai 600086, Tamil Nadu, India.
Comments were made on some thought-provoking articles, which included articles that dealt with cardiac arrest (CA). Two articles on CA elaborate on the role of automated compression devices to provide chest compressions during cardiopulmonary resuscitation (CPR) in "hostile" environments and on a predictive model in cases of out-of-hospital CA (OHCA). CPR after CA has been practiced for centuries, and the evolution until current modern-day practices are discussed.
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