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Ann Thorac Surg 1976;22:572-577
© 1976 The Society of Thoracic Surgeons

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Articles

Surface-induced Profound Hypothermia in Infant Cardiac Operations: A New System

From the Department of Cardiovascular Surgery, Buffalo Children's Hospital, Buffalo, NY, and the Thoracic and Cardiovascular Surgical Department, Beilinson Medical Center, Tel-Aviv University, Tel-Aviv, Israel

^* Address reprint requests to Dr. Subramanian, Children's Hospital, 219 Bryant St, Buffalo, NY 14222

A new system of surface-induced profound hypothermia for infant cardiac operations has been developed in order to overcome problems inherent in the current techniques using crushed ice, water baths, and similar methods. The hypothermic chamber consists of two parts: a lower part, containing a refrigeration unit and a blower fan capable of lowering the air temperature in the chamber to –6°GC, and an upper part made of Plexiglas that has a completely detachable end to allow easy access to cannulas, the anesthesia hose, and the infant. A temperature panel recorder to monitor the infant's esophageal and rectal temperatures and the ambient chamber temperature is incorporated into the unit.

Following evaluation in the animal laboratory, the hypothermic chamber has been successfully used in 10 infants without any complications attributable to the technique. This method provides a rapid and uniform drop of the body temperature and even skin cooling, eliminates the possibility of contact skin lesions, saves medical and paramedical personnel time in preparation of the infant and equipment, and allows observation of the child during the cooling phase. This hypothermic chamber has facilitated infant hypothermic operations.

This article has been cited by other articles:

				H. Matsuda, C. Zavanella, P. Lee, and S. Subramanian Aortic Origin of the Right Pulmonary Artery Ann. Thorac. Surg., October 1, 1977; 24(4): 374 - 378. [Abstract] [PDF]