Heat trapped under paper and plastic ophthalmic drapes during eye surgery using local anesthesia

Authors
Citation
A. Schlager, Heat trapped under paper and plastic ophthalmic drapes during eye surgery using local anesthesia, J CAT REF S, 25(11), 1999, pp. 1532-1534
Citations number
4
Categorie Soggetti
Optalmology
Journal title
JOURNAL OF CATARACT AND REFRACTIVE SURGERY
ISSN journal
08863350 → ACNP
Volume
25
Issue
11
Year of publication
1999
Pages
1532 - 1534
Database
ISI
SICI code
0886-3350(199911)25:11<1532:HTUPAP>2.0.ZU;2-Y
Abstract
Purpose: To assess whether heat trapped under ophthalmic drapes is responsi ble for patient reports of being hot during cataract surgery using local an esthesia. Setting: Departments of Anaesthesia and Intensive Care Medicine and of Opht halmology and Optometry, Innsbruck University Hospital, Innsbruck, Austria. Methods: In a prospective, randomized, single-blind study, the temperature in the ambient air under 2 types of paper drapes (Group A: Barrier(TM) Opht halmology Drape, Johnson & Johnson(R); Group B: Steri Drape(R) 1062, 3M(R)) and a plastic drape (Group C: cotton drape + Steri Drape 1024, 3M) was mea sured for 25 minutes in 60 patients having cataract surgery under local ane sthesia Results: Three minutes after the patient's head was draped, the mean temper ature under the drape began to increase significantly: Group A, 25.7 degree s C +/- 0.3 degrees C (SD) to 29.17 degrees C +/- 0.9 degrees C (P less tha n or equal to.001); Group B, 25.87 degrees C +/- 0.4 degrees C to 29.41 deg rees C +/- 0.9 degrees C (P less than or equal to.001): Group C, 25.8 degre es C +/- 0.35 degrees C to 29.4 degrees C +/- 0.6 degrees C (P less than or equal to .001). It continued to increase in all groups as the operation co ntinued. No significant differences in temperature were observed among the 3 drape types studied. Subjective thermal discomfort was reported by 35% to 40% of patients. Conclusion: Paper drapes did not cause less heat from being trapped than th e plastic drape. Trapped heal may impair the comfort of patients having eye surgery under local anesthesia. J Cataract Refract Surg 1999; 25: 1532-153 4 (C) 1999 ASCRS and ESCRS.