Page 92 - JSOM Summer 2020

FIGURE 5 Phase 3: Occlusion and completion data.

(A) (B)

(C) (D)

(continues)

All applications with tights reached occlusion. Seven C-A-T7 Issues
did not reach completion for recipient discomfort. Six During Phase 3, two SOFTTWs broke: one by failure of the
SOFTTW did not reach completion: four for recipient dis- fabric holding the securing triangle (unknown number of uses,
comfort, one for discomfort and applier inability to turn the > 100) and one by failure of the rod-holding stitching (291
st
windlass rod, and one for applier inability to secure the rod. use). Three SWATTs broke: one during wrapping (5 use), one
th
th
All Tac RMT and all SWATT reached completion. As with tore but application was successful (4 use), and one during
scrubs and uniform, tights were not associated with con- struggling to tuck, related to sharp fingernails (4 use).
th
sistently higher or lower secured, occlusion, or completion
pressures than Bare (Figure 6A–6B). Pressures increased from Discussion
occlusion to completion except with two SWATT applications
(Figure 6C). No occlusion losses occurred within 5 seconds of Clothing might affect the application process and limb tour-
completion. Turns, clicks, and wraps data was similar to Bare niquet pressures by fabric interaction with redirect buckles,
(Figure 6D). alteration of compressibility, and clothing to tourniquet sur-
face interaction. The directly clothing-related findings in the
With the observed standard deviations in secured pressures study were as follows: (1) A few appliers indicated the uni-
and occlusion pressures, the clothing state of the limb would form pocket under redirect buckles as a hindrance, and most
have needed to make more than a 25mmHg difference in pres- indicated applications over clothing as most difficult, but
sures to have a high probability of being detected with the thigh-application pressure data did not show clothing pres-
number of subjects in this study (Table 2). sure effects. (2) The bladder location (on top off or underneath

90 | JSOM Volume 20, Edition 2 / Summer 2020