Hyperventilation in Postural Hypotension

Hyperventilation in postural hypotension.

Postural Hypotension and Anhidrosis

influence nerve growth factor synthesis in primary rat astrocytes. Heterogeneous cardiac sympathetic denervation and decreased myocardial nerve growth factor in streptozotocin diabetic rats: implications for cardiac sympathetic dysinnervation complicating diabetes. Stimulation of nerve growth factor synthesis/ secretion in mouse astroglial cells by coenzymes. A fluorescence-based method for mea...

Hyperventilation-induced hypotension during cardiopulmonary resuscitation.

BACKGROUND A clinical observational study revealed that rescuers consistently hyperventilated patients during out-of-hospital cardiopulmonary resuscitation (CPR). The objective of this study was to quantify the degree of excessive ventilation in humans and determine if comparable excessive ventilation rates during CPR in animals significantly decrease coronary perfusion pressure and survival. ...

New therapies for postural hypotension.

Patients with deterioration of the autonomic nervous system can have unexpected or even paradoxical reactions to common cardiovascular drugs. For example, patients with severe neuropathy of the peripheral autonomic system can have a pressor response to phenylephrine eye drops and a paradoxical increase in blood pressure (BP) from the antihypertensive clonidine.1 Currently, the only approved the...

Widespread cardiovascular autonomic dysfunction in primary amyloidosis: does spontaneous hyperventilation have a compensatory role against postural hypotension?

OBJECTIVE To investigate the possible causes of abnormal blood pressure control in light chain related (primary, AL) amyloidosis. DESIGN Cardiovascular, autonomic, and respiratory response to passive tilting were investigated in 51 patients with primary amyloidosis (mean (SEM) age 56 (2) years) and in 20 age matched controls. Spontaneous fluctuations in RR interval, respiration, end tidal car...