Reviewed are 200 cases in which endolaryngeal suspension microsurgical procedures were done using intravenous anesthesia and Venturi insufflation oxygenation. Patients included 177 adults and 23 children, ranging in age from 20 months to 88 years. No significant complications were observed. The technic allowed the glottic space to remain free of cumbersome intraluminal apparatus. Arterial blood studies revealed that adequate oxygenation is achieved while normal pH and PaCO2 levels are maintained.