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Room air ventilation for total intravenous general anaesthesia
Annales Francaises D'Anesthesie Et De Reanimation
|January 1, 1988
Summary
Healthy patients undergoing surgery with total intravenous anesthesia can be safely ventilated using room air alone. This method maintained adequate oxygen levels and minimal acid-base changes, avoiding pulmonary complications.
Area of Science:
- Anesthesiology
- Respiratory Physiology
Background:
- Total intravenous anesthesia (TIVA) is an anesthetic technique.
- Mechanical ventilation is often used during surgery.
- The use of room air for ventilation in TIVA requires investigation.
Purpose of the Study:
- To evaluate the safety and efficacy of using room air alone for mechanical ventilation in patients receiving TIVA.
- To assess respiratory and acid-base parameters during room air ventilation in TIVA.
Main Methods:
- Ten patients undergoing gastrectomy for peptic ulcer or stomach carcinoma were studied.
- Patients received TIVA including morphine.
- Minute-ventilation was measured preoperatively and used to preset the ventilator at 14 breaths/min.
- Alveolar ventilation, end-expiratory CO2, arterial blood gases, and acid-base balance were monitored.
Main Results:
- Arterial oxygen levels remained similar to baseline values.
- Moderate hypocapnia and low end-expiratory CO2 were observed.
- Minimal changes in acid-base balance were recorded.
- No postoperative pulmonary complications occurred.
Conclusions:
- Room air ventilation is a viable option for select healthy patients under TIVA.
- This approach can be used in specific circumstances, particularly when specialized gas mixtures are unavailable.
- Further research may explore broader applications in TIVA settings.