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Use for Controlled Myocardial and Generalized Hypothermia

ALFRED H. F. LUI, MD; RUTH M. STETSON, BA

AMA Arch Surg. 1966;93(5):838.

	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 CLINICAL use of generalized hypothermia in cardiopulmonary by-pass described by Sealy and associates has proved to be a valuable modality.¹ The decrease in metabolic requirements contributes to a safer by-pass. Controlled myocardial hypothermia in conjunction with systemic hypothermia may be desirable during aortic valvular operations. This is usually accomplished with two heat exchangers; one in the systemic arterial circuit and another in the coronary perfusion circuit. An alternative method using a single heat exchanger eliminates unnecessary equipment and preparation.

Method

The circuit required for controlled myocardial and generalized hypothermia with one heat exchanger is diagrammed in the Figure. A line detouring the heat exchanger is placed so that oxygenated blood may either flow completely through the heat exchanger or may be partially detoured from the heat exchanger. Blood for coronary perfusion is taken from the systemic arterial line distal to the heat exchanger but proximal to the detour . . . [Full Text PDF of this Article]

Author Affiliations
ELOISE, MICH

From the Department of Surgery, Wayne County General Hospital, Eloise.

Footnotes
Submitted for publication June 14, 1966.

Reprint requests to Wayne County General Hospital, Eloise, Mich 48132 (Dr. Lui).

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