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Autonomic imbalance, including depleted parasympathetic drive, is a fundamental pathophysiological feature of heart failure (HF). In clinical studies, parasympathetic withdrawal is assessed using arterial baroreflex sensitivity (BRS). Parasympathetic activity can also be tracked based on the assessment of molecular elements of cholinergic signaling in target cells. Hence, we investigated whether BRS...
In patients suffering from heart failure (HF), autonomic imbalance develops even at early stages along with derangements of cardiopulmonary reflex control and abnormalities in metabolism of several hormones. In 34 men with stable systolic HF, we investigated hypercapnic chemosensitivity (HCS, liter/min·mm Hg) measured using the rebreathing method and defined as the slope of the regression line relating...
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