Lab Evaluation of X8T-T2G Tourniquet
Piper Lynn Wall1, Charisse M Buising2, Mary Jonas2,3
1Department of Research, UnityPoint Health Iowa Methodist Medical Center, Des Moines, IA.
Background:
We evaluated pressures and tightening-system use of 3.8cm-wide, self-securing-strap/redirect-and-tightening-system X8T-T2G tourniquets (X8Ts).
Methods:
Applied left/right, mid-arm and mid-thigh, 40 recipients, first completion one-click-past arterial occlusion, release 100s later. Compared to concurrent study: four 3.8cm-wide, windlass-rod-tightening-system tourniquets (n=30 each).
Results:
All X8T reached occlusion and completion without securing struggles. Maintaining occlusion till release, 3 arms/25 thighs required additional click once, 2/2 required twice, and 1 thigh required thrice. Nineteen arms large enough for X8T pressure monitoring: occlusion median 298mmHg (minimum 188, interquartile range 262, 322, maximum 335), first completion 338mmHg (219, 310, 372, 391), pre-release 304mmHg (172, 270, 323, 342). Thigh pressures: occlusion 359mmHg (273, 334, 388, 478), first completion 393mmHg (308, 366, 426, 489), pre-release 368mmHg (289, 339, 390, 462); each< respective windlass-rod tourniquet pressures (every P<.030). Arm clicks: occlusion 5 (0, 4, 7, 10), first completion 6 (1, 5, 8, 11), pre-release 7 (1, 5, 8, 11); first completion and pre-release tightening-system rotation
Conclusions:
X8Ts were arterially occlusive with simple, self-securing, tightening-system advances. Versus windlass-rod systems, first completion and pre-release pressures and total tightening-system rotation were lower, and completion of tightening-system use after first completion was faster.
