Department of Anesthesiology and Critical Care Medicine, Tel-Aviv Sourasky Medical Center, the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
Department of Anesthesiology and Critical Care Medicine, Tel-Aviv Sourasky Medical Center, the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Abstract
Purposes
The MRTX portable lightweight respirator (MRTX) provides noninvasive respiratory support using biphasic extrathoracic ventilation via a cuirass fitted around the patient's chest.
Methods
MRTX was applied with or without full protective gear, on adult volunteers simulating nerve agent (NA) victims by nonmedical caregivers. Assessment was made based on scores for correct positioning of the cuirass, quality of seal, and rapid ness.
Results
For the unprotected and protected personnel, the respective median (±95% confidence interval) scores for correct positioning of the cuirass were 2 (1.4-1.9) and 1 (1.2-1.8) (n = 15 per group, P = NS); quality of seal scores were 2 (1.5-2.0) and 2 (1.3-1.8) (P = NS); and mean (±SD) time required for instituting mechanical ventilation was 90.5 ± 10.9 and 100.3 ± 7.9 seconds (P < .05). The respirator was activated at first attempt 11 times in the group of 15 without protective gear and 8 times in the group of 15 with protective gear (P = NS).
Discussion
Biphasic cuirass ventilation is an easily learned and rapidly applied method suitable for use by nonmedical personnel, even when wearing cumbersome protective gear.
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