Abstract
Bronchoscopies were made immediately after the operations in 64 cases including submucous resection, radical operation of maxillary, ethmoidal sinusitis, pansinectomy and adenotonsillectomy, which were performed using insufflation method, endotracheal anesthesia and drip anesthesia with cocktail lytique.
Under bronchoscopy the volume of aspirated blood in trachea and bronchi was estimated.
The method of estimation is based on the determination of CN-met-Hb produced using photoelectriccolorimeter after the addition of KCN and K3Fe (CN)6 to blood.
Considerable volume of blood was found to be aspirated into trachea and bronchi during operation, even though endotracheal anesthesia which is considered to be the safest was used. The volume of the blood aspirated averages 3ml, while as much as 15ml of blood was found in trachea and bronchi in one case.
