Page 58 - JSOM Fall 2020

FIGURE 3 Thigh up versus thigh down correlations.

(A) (B)

(C) (D)

On all panels, data points represent means of the triplicates. On panels A–C, the y-axis has thigh up pressures (mmHg), and the x-axis has thigh
down pressures (mmHg). On panel D, the y-axis has thigh up ladder tooth advances (clicks) for occlusion, and the x-axis has thigh down ladder
tooth advances (clicks) for occlusion. (A) Thigh up versus thigh down secured pressures. (B) Thigh up versus thigh down occlusion pressures.
(C) Thigh up versus thigh down completion pressures. (D) Thigh up versus thigh down occlusion clicks.

one-handed to the dominant arm); during self-thigh appli- the 95th percentile regarding application consistency, the co-
cations, use of a downward versus upward pulling direction efficients of variation increase to 22% and 25% for thigh and
does not matter for pressure attainment; and thigh occlusion arm secured pressures. The “fresh training” of the appliers
and completion pressures are generally in the range reported most commonly concluded immediately prior to study appli-
for 3.8cm-wide Tactical Ratcheting Medical Tourniquet and cations with practice applications that included knowledge of
Generation 3 SOF Tactical Tourniquet–Wide nonpneumatic, results and performance verbal feedback, real time viewing of
®
nonelastic, emergency-use limb tourniquets. tourniquet pressures (knowledge of results), and emphasis on
reaching secured pressures >150mmHg. We would consider
Findings related to tourniquet application consistency are that such fresh training a best-case scenario for maximizing indi-
75% of freshly trained individual appliers had secured pressure vidual applier consistency, so we think it reasonable to expect
coefficients of variation <14% for thigh and arm applications less consistency per applier in application scenarios occurring
done without access to pressure information. To encompass farther out in time from training and following training that

56 | JSOM Volume 20, Edition 3 / Fall 2020