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1 Department of Anesthesiology, Baltimore City Hospitals, Baltimore, Maryland
Lightly anesthetized dogs were subjected to obstructive asphyxia (simulating laryngospasm). When spontaneous breathing efforts ceased, the lungs were flooded with sea water for 30 seconds, according to a standardized experiment described previously. Five dogs were treated with intermittent positive pressure artificial respiration with 100% oxygen (IPPB/O2) for 3 hours. Five additional dogs were treated identically except for the addition of an intravenous infusion of dog plasma 50 ml/kg body weight, 10 minutes after the start of artificial respiration. All the dogs treated only with IPPB/O2 for 3 hours were more completely reoxygenated than were those ventilated with IPPB/air for 10 minutes in the earlier experiment. However, death with pulmonary edema followed the cessation of IPPB/O2 as well as IPPB/air. When the hemoconcentration and hypovolemia, caused by flooding of the lungs with sea water, were corrected by plasma infusion in addition to IPPB/O2, four of the five dogs survived.
Submitted on May 19, 1960
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