Immediate effect of expiratory loading on left ventricular stroke volume.
نویسندگان
چکیده
منابع مشابه
Immediate effect of expiratory loading on left ventricular stroke volume.
While the steady-state effects of positive pleural pressure on the circulation have been extensively studied, less is known about the immediate effects of positive intrathoracic pressure on cardiac dynamics. Therefore, we performed electrocardiographically gated radionuclide ventriculography with a respiratory gating technique in nine healthy subjects during quiet breathing and during expiratio...
متن کاملPATHOPHYSIOLOGY AND NATURAL HISTORY VENTRICULAR PERFORMANCE Immediate effect of expiratory loading on left ventricular stroke volume
While the steady-state effects of positive pleural pressure on the circulation have been extensively studied, less is known about the immediate effects of positive intrathoracic pressure on cardiac dynamics. Therefore, we performed electrocardiographically gated radionuclide ventriculography with a respiratory gating technique in nine healthy subjects during quiet breathing and during expiratio...
متن کاملEffect of fluid loading with normal saline and 6% hydroxyethyl starch on stroke volume variability and left ventricular volume
PURPOSE The aim of this clinical trial was to investigate changes in stroke volume variability (SVV) and left ventricular end-diastolic volume (LVEDV) after a fluid bolus of crystalloid or colloid using real-time three-dimensional transesophageal echocardiography (3D-TEE) and the Vigileo-FloTrac™ system. MATERIALS AND METHODS After obtaining Institutional Review Board approval, and informed c...
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background: echocardiography is the most common test used for the evaluation of aortic regurgitation (ar). however, the role of echocardiography as an available and inexpensive method in the quantification of ar by the left ventricle to right ventricle stroke volume ratio (lv/rv sv ratio) has not been completely investigated. methods: between june 2005 and december 2007, 132 consecutive patient...
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and overview. Circulation 2006;114:1645–53. [19] Du ZD, Hijazi ZM, Kleinman CS, Silverman NH, Larntz K. Comparison between transcatheter and surgical closure of secundum atrial septal defect in children and adults: results of a multicenter nonrandomized trial. J Am Coll Cardiol 2002;39:1836–44. [20] Van De Bruaene A, DeMP, Buys R, Vanhees L, Delcroix M, Voigt JU et al. Right ventricular load an...
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ژورنال
عنوان ژورنال: Circulation
سال: 1987
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.75.1.139