Aspects of cardiovascular reflexes in pathologic states

Irving H Zucker, J. P. Gilmore

Research output: Contribution to journalReview article

24 Citations (Scopus)

Abstract

Cardiovascular reflexes that are mediated by receptors in the heart and blood vessels control a variety of important hemodynamic and humoral functions. The action of these receptors can be shown to be abnormal in several pathologic states. Left arterial receptors exhibit a depressed discharge sensitivity in dogs with chronic congestive heart failure caused by an aortocaval fistula. The reflex effects of atrial receptor stimulation are also depressed in heart failure. Left ventricular receptor stimulation has been implicated in the abnormal vascular responses to exercise in patients with aortic stenosis. The arterial baroreflex control of heart rate is abnormal in animals and humans with various forms of hypertension. Arterial baroreceptors from hypertensive animals show a resetting of their pressure-discharge curve to higher pressures. The arterial baroreflex is also depressed in chronic heart failure. This effect may result from an abnormality of the efferent limb of the reflex arc or from changes in the interaction between baroreceptors and cardiac receptors centrally. A final possibility may be abnormal arterial baroreceptor discharge characteristics in heart failure.

Original languageEnglish (US)
Pages (from-to)2400-2407
Number of pages8
JournalFederation Proceedings
Volume44
Issue number8
StatePublished - Jan 1 1985

Fingerprint

Pressoreceptors
Reflex
Heart Failure
Baroreflex
Blood Vessels
Pressure
Aortic Valve Stenosis
Fistula
Extremities
Heart Rate
Hemodynamics
Dogs
Exercise
Hypertension

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Aspects of cardiovascular reflexes in pathologic states. / Zucker, Irving H; Gilmore, J. P.

In: Federation Proceedings, Vol. 44, No. 8, 01.01.1985, p. 2400-2407.

Research output: Contribution to journalReview article

Zucker, Irving H ; Gilmore, J. P. / Aspects of cardiovascular reflexes in pathologic states. In: Federation Proceedings. 1985 ; Vol. 44, No. 8. pp. 2400-2407.
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