Pressure-volume analysis using a conductance catheter provides useful clinical information regarding diagnosis and treatment in subjects with heart failure symptoms.
Does pressure-volume analysis using the conductance catheter technique provide useful clinical information for diagnosis and treatment in subjects with heart failure symptoms?
The conductance catheter technique for pressure-volume loop analysis is a valuable tool for deriving comprehensive hemodynamic indices to guide diagnosis and treatment in heart failure.
Methods to obtain pressure-volume loops in humans and their application to clinical diagnosis and treatment of cardiac disease are discussed. The method employs a conductance catheter, micromanometer, and inferior vena caval balloon occluder to reversibly and rapidly vary venous return. Multiple cardiac cycles measured during this manoeuvre are used to derive a variety of systolic and diastolic function indices, as well as estimates of vascular loading, and cardiac energetics. Strengths and weaknesses of the method as well as pressure-volume indexes themselves are briefly discussed. Lastly, three clinical examples are presented which serve to demonstrate how pressure-volume analysis can provide useful clinical information regarding diagnosis and/or treatment in subjects with heart failure symptoms.
David A. Kass (Mon,) conducted a review in Heart failure symptoms (n=3). Conductance catheter technique for pressure-volume loops was evaluated. Pressure-volume analysis using a conductance catheter provides useful clinical information regarding diagnosis and treatment in subjects with heart failure symptoms.
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