Many methods of cardiac output measurement have been developed, but the number of methods useful for human pharmacological studies is limited. The 'holy grail' for the measurement of cardiac output would be a method that is accurate, precise, operator independent, fast responding, non-invasive, continuous, easy to use, cheap and safe. This method does not exist today. In this review on cardiac output methods used in pharmacology, the Fick principle, indicator dilution techniques, arterial pulse contour analysis, ultrasound and bio-impedance are reviewed.
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http://dx.doi.org/10.1111/j.1365-2125.2010.03798.x | DOI Listing |
Front Cardiovasc Med
January 2025
Department of Anesthesiology, The First Affiliated Hospital of Anhui University of Science and Technology, Huainan, Anhui, China.
Background: We intended to observe the effects of different doses of remimazolam besylate via intravenous induction on the quality of sedation and cardiac function in elderly patients.
Methods: A total of 135 ASA I-III patients undergoing elective laparoscopic cholecystectomy were selected. They were divided into three groups and they were randomized.
J Cardiothorac Surg
January 2025
Department of Cardiology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Heart Center of Henan Provincial People's Hospital, Zhengzhou, Henan, 450003, China.
Objective: Impaired right ventricular (RV)-pulmonary arterial (PA) coupling, calculated by measuring the tricuspid annular plane systolic excursion (TAPSE) to pulmonary artery systolic pressure (PASP), can be used as an early indicator of right ventricular dysfunction (RVD) in patients with heart failure with a reduced ejection fraction (HFrEF). Patients suffering from HFrEF experience improvements in left ventricular (LV) function through the administration of sacubitril/valsartan therapy. In addition, the albumin-bilirubin (ALBI) score was associated with the fluid overload status and adverse clinical outcomes in patients with heart failure.
View Article and Find Full Text PDFMedicine (Baltimore)
January 2025
Department of Ultrasound, JinHua Municipal Central Hospital, Jinhua, Zhejiang, China.
To evaluate myocardial synchronized exercise and clinical prognosis in patients with heart failure preserved ejection fraction (HFpEF), we utilized two-dimensional speckle tracking (2D-STI) stratified strain imaging. We retrospectively summarized 146 patients diagnosed with HFpEF in our hospital from January 2022 to January 2023. 2D-STI combined with stratified strain imaging was used to measure the overall left ventricular global longitudinal strain (LVGLS), the sub-endocardium, mid-myocardium, sub-epicardium LS of the left ventricle, as well as the basal, intermediate, and apical LS, the peak strain dispersion (PSD) and the transmural pressure difference, the postsystolic shortening (PSS), and early systolic lengthening.
View Article and Find Full Text PDFMedicine (Baltimore)
January 2025
Quality Management Office, Wuhan Wuchang Hospital, Wuhan, China.
This study aims to assess the impact of comprehensive nursing care on sleep quality and rehabilitation duration in patients experiencing arrhythmia after acute myocardial infarction (AMI). Eighty-four patients with post-AMI arrhythmia treated at our hospital from February 2018 to February 2019 were selected and divided based on the nursing care received. The observation group (n = 44) underwent comprehensive nursing interventions, while the control group (n = 40) received standard nursing care.
View Article and Find Full Text PDFBackground: Growth differentiation factor 15 (GDF15) is a cytokine responding to oxidative stress and inflammation, and it regulates appetite and energy balance. The association between GDF15 and clinical factors and its prognostic value in elderly multimorbid patients with heart failure with preserved ejection fraction (HFpEF) have not been well unknown.
Methods: This exploratory analysis is part of the Prospective mUlticenteR obServational stUdy of patIenTs with Heart Failure with preserved Ejection Fraction study (N=1231), an ongoing, prospective, multicentre observational study of acute decompensated HFpEF (UMIN000021831).
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