Negative pressure pulmonary edema (NPPE) (Report on 5 cases)

Negative pressure pulmonary edema is a disease may be caused following removing acute upper air way obstruction and cardiac negative pressure. Ït’s prevalence is observed in less than 0.03 of the patients undergoing general anaesthesia. This condition, some times occurs following removing chronic air way obstruction. The cases under study comprises 5 comprises 5 young men of 20 to 33 years age undergone hernioraphy operation of nose and organs in 1999 through 2002, at Ëbne Sina and Boali hospitals in Tehran and Sari respectively. These patients had laryngeospasm after removing the tube, but the obstruction was cured maximum within 2 minutes. But they suffered respiratory distress and NPPË up to 30 minutes after curing of obstruction, immediate proper treatment measures were undertaken and the patients were under observation in ÏÇÜ. Ïn case of any upper air way obstruction following anaesthesia and operation, need of promt and proper treatment and under observation of patients at least up to 6 hours after curing is proposed.