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[Use of ventilation by oxygen injection in laryngeal microsurgery]
Abstract:
Thirty patients with a laryngeal polyp or other tumour, were operated on under the microscope. During the operation, which lasted from 10 to 30 minutes, ventilation was ensured by injection of oxygen at 3 to 4 atmospheric pressures through a naso-tracheal catheter. Anaesthesia was obtained by an association of propanidide, small doses of analgesic and succinycholine, constant rate syringes were used for maintenance of narcosis and curarisation. In 23 patients, blood gases were analysed at various stages of the operation permitting one to assess the quality of the ventilation carried out. In a few patients, it was also possible to record pressure curves in the trachea. The results were excellent, both concerning the quality of the ventilation and that of the anaesthesia together with the operative conditions. After recalling the main characteristics of this mode of ventilation which uses Venturi's principle, the authors expose the other methods which are variants compared with their technique of use of this procedure for laryngeal micro-surgery.
Insights
This study demonstrates excellent ventilation and anesthesia for laryngeal microsurgery using high-pressure oxygen injection. The technique ensured optimal operative conditions for patients with laryngeal tumors.
Area of Science:
- Otolaryngology
- Anesthesiology
- Respiratory Physiology
Context:
- Laryngeal microsurgery requires precise visualization and stable patient conditions.
- Traditional ventilation methods may pose challenges during delicate laryngeal procedures.
- High-pressure oxygen ventilation offers a potential solution for improved surgical access and patient safety.
Purpose:
- To evaluate a novel ventilation technique for laryngeal microsurgery.
- To assess the efficacy of high-pressure oxygen injection via naso-tracheal catheter.
- To analyze blood gas parameters and operative conditions during the procedure.
Summary:
- Thirty patients with laryngeal polyps or tumors underwent microsurgery using high-pressure oxygen ventilation (3-4 atm) via a naso-tracheal catheter.
- Anesthesia involved propanidide, analgesics, and succinylcholine, with constant rate infusion pumps for narcosis and curarization.
- Blood gases were monitored in 23 patients, and tracheal pressure curves were recorded in some, demonstrating excellent ventilation, anesthesia, and operative conditions.
Impact:
- This technique provides excellent ventilation and anesthesia for laryngeal microsurgery.
- It improves operative conditions, facilitating complex laryngeal tumor and polyp removal.
- The study highlights the benefits of Venturi-principle ventilation in specialized surgical applications.