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Negative pressure ventilation vs. spontaneous assisted ventilation during rigid bronchoscopy. A controlled randomised
G Natalini1, S Cavaliere, M Vitacca
1Department of Anaesthesia and Intensive Care, University of Brescia, Italy.
Acta Anaesthesiologica Scandinavica
|November 11, 1998
Summary
Intermittent negative pressure ventilation (INPV) offers better outcomes than spontaneous assisted ventilation (SAV) during rigid bronchoscopy. INPV reduces opioid use, shortens recovery, and improves surgical conditions.
Area of Science:
- Anesthesiology
- Pulmonology
- Surgical Procedures
Background:
- Ventilation during interventional rigid bronchoscopy (IRB) under general anesthesia presents challenges.
- Comparing intermittent negative pressure ventilation (INPV) with spontaneous assisted ventilation (SAV) is crucial for optimizing patient care.
Purpose of the Study:
- To compare the effectiveness of INPV and SAV during IRB.
- To evaluate ventilation strategies for improved patient outcomes and surgical conditions.
Main Methods:
- Thirty-eight patients undergoing IRB were randomized into SAV or INPV groups.
- Patients received total intravenous anesthesia; INPV group patients were paralyzed.
- Arterial blood gases, O2 flow, and subjective operating conditions were assessed.
Main Results:
- INPV group required lower fentanyl dosage, reduced O2 supply, and had shorter recovery times compared to SAV.
- Intraoperative PaCO2 was lower and pH was higher in the INPV group.
- Operating conditions were subjectively rated as better with INPV.
Conclusions:
- INPV is a safe, non-invasive, and effective ventilatory management for IRB.
- INPV reduces opioid administration, shortens recovery, prevents respiratory acidosis, and optimizes surgical conditions compared to SAV.