Work

The Effect of the Valsalva Manoeuvre on the Systemic and Pulmonary Arterial Pressure in Man

Year: 1954

Type: article

Abstract: There is little information concerning reflex vasomotor activity in the pulmonary arterial system in man.Pulmonary arterial resistance is known to increase during anoxia (Motley et al., 1947; Doyle, et al., 1952) and animal experiments suggest that this is a local effect on the vessels them- selves (von Euler and Li1jestrand, 1948; Duke, 1951).de Burgh Daly et al. (1932 and 1948) have produced pulmonary arterial constriction by electrical stimulation of the stellate ganglion and of the cervical and thoracic vago-sympathetic system of the perfused dog, but this effect is small in the intact animal (Daly, 1954).Numerous afferent pathways exist from the lesser circulation, and the activity of some of these increases with a rise in pulmonary arterial pressure (Pearce and Whitteridge, 1951; Aviado et al.,

Source: Heart

DOI: 10.1136/hrt.16.3.311

Authors: G. D. J. Lee, M. B. Matthews, E. P. Sharpey-Schafer

Institution: St Thomas' Hospital

Language: English

Topic: Pulmonary Hypertension Research and Treatments

Subfield: Pulmonary and Respiratory Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: bronze

OpenAlex ID: W2018929258