Accession Number : AD0421110

Title :   SOME FACTORS WHICH AFFECT PULMONARY BLOOD FLOW DISTRIBUTION IN ATELECTASIS AND PNEUMOTHORAX,

Corporate Author : WASHINGTON UNIV SEATTLE

Personal Author(s) : Bonica,John J. ; Hill,T. R. ; Finley,T. N. ; Crawford,Edward D.

Report Date : 1943

Pagination or Media Count : 13

Abstract : The effects of pressure in the airway and of hyperventilation, hypoventilation, and operative position have been studied on 41 mongrel dogs. Anesthesia consisted of intravenous pentobarbital. Succinylcholine and additional increments of pentobarbital were administered during those experiments in which controlled ventilation was used. The preparation consisted of a tracheotomy and insertion of a tracheal divider which permitted selective ventilation of each lung. Femoral arterial cannulation was done, and right ventricular cannulation effected via the femoral vein. A continuously recording oxygen needle electrode was placed in the other femoral artery. Systemic arterial pressure was measured. The blood gas tensions of oxygen and carbon dioxide in these samples were measured by means of a temperature controlled, modified Clark O2 electrode, a Severinghaus CO2 electrode, and a Beckman Model 160 readout. (Author)

Descriptors :   (*OXYGEN CONSUMPTION, SURGERY), (*BLOOD CIRCULATION, RESPIRATION), DOGS, MEDICINE, PHYSIOLOGY, LUNG, CANNULATION, BLOOD PRESSURE, CARBON DIOXIDE, OXYGEN, ANESTHESIA

Distribution Statement : APPROVED FOR PUBLIC RELEASE