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Influence on Coronary Blood Flow and Oxygen Delivery to the Myocardium

Bryn T. Williams, MD, FRCS; Bernard Roding, MD; Peter M. Winters, MD; Worthington G. Schenk, Jr., MD

AMA Arch Surg. 1969;99(6):758-763.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

The application of hyperbaric oxygen therapy to the treatment of myocardial infarction and its use in certain cardiac procedures has been largely on an empirical basis; reports in the literature of direct measurement of coronary artery flows under these conditions have been lacking.

Reports of the efficacy of hyperbaric oxygen in preventing ventricular fibrillation in experimental animals after coronary artery ligation have also varied.^1,2

Hahnloser³ and Bergofsky⁴ have independently demonstrated the vasoconstrictor action of hyperbaric oxygen in many regional circulations, and it has also been shown that inhalation of pure oxygen at normal pressures may produce a fall in coronary blood flow.^5,6

This study was, therefore, designed to measure directly the effect of high pressure oxygen on coronary artery blood flow and to gain information concerning the amount of oxygen delivered to the myocardium under these conditions.

Method

Ten young adult mongrel dogs weighing from 16.8 . . . [Full Text PDF of this Article]

Author Affiliations
Buffalo

From the departments of surgery (Drs. Williams, Roding, and Schenk) and Anesthesiology (Dr. Winters), State University of New York at Buffalo; the Surgical Research Laboratories of the E.J. Meyer Memorial Hospital; and the Hyperbaric Medicine Unit of the Veterans Administration Hospital, Buffalo.

Footnotes
Submitted for publication Aug 5, 1969.

Read before the 17th scientific meeting of the North American Chapter of the International Cardiovascular Society, New York, July 11, 1969.

Reprint requests to Department of Surgery, State University of New York at Buffalo, Buffalo (Dr. Schenk).

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