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Open Access 01-12-2015 | Research article

The efficacy of pre-warming on reducing intraprocedural hypothermia in endovascular coiling of cerebral aneurysms

Authors: Keun Man Shin, Jung Hwan Ahn, Il Seok Kim, Jong Young Lee, Sang Soo Kang, Sung Jun Hong, Hyun Mo Chung, Hee Jae Lee

Published in: BMC Anesthesiology | Issue 1/2015

Abstract

Background

The anesthetic management of patients undergoing endovascular treatment of cerebral aneurysms in the interventional neuroradiology suite can be challenged by hypothermia because of low ambient temperature for operating and maintaining its equipments. We evaluated the efficacy of skin surface warming prior to induction of anesthesia to prevent the decrease in core temperature and reduce the incidence of hypothermia.

Methods

Seventy-two patients were randomized to pre-warmed and control group. The patients in pre-warmed group were warmed 30 minutes before induction with a forced-air warming blanket set at 38°C. Pre-induction tympanic temperature (Tpre) was measured using an infrared tympanic thermometer and core temperature was measured at the esophagus immediately after intubation (T0) and recorded at 20 minutes intervals (T20, T40, T60, T80, T100, and T120). The number of patients who became hypothermic at each time was recorded.

Results

Tpre in the control and pre-warmed group were 36.4 ± 0.4°C and 36.6 ± 0.3°C, whereas T0 were 36.5 ± 0.4°C and 36.6 ± 0.2°C. Core temperatures in the pre-warmed group were significantly higher than the control group at T20, T40, T60, T80, T100, and T120 (P < 0.001). Compared to T0, core temperatures at each time were significantly lower in both two groups (P = 0.007 at T20 in pre-warmed group, P < 0.001 at the other times in both groups). The incidence of hypothermia was significantly lower in the pre-warmed group than the control group from T20 to T120 (P = 0.002 at T20, P < 0.001 at the other times).

Conclusion

Pre-warming for 30 minutes at 38°C did not modify the trends of the temperature decrease seen in the INR suite. It just slightly elevated the beginning post intubation base temperature. The rate of decrease was similar from T20 to T120. However, pre-warming considerably reduced the risk of intraprocedural hypothermia.

Trial registration

Clinical Research Information Service (CRiS) Identifier: KCT0001320. Registered December 19th, 2014.

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The pre-publication history for this paper can be accessed here: http://www.biomedcentral.com/1471-2253/15/8/prepub

Title: The efficacy of pre-warming on reducing intraprocedural hypothermia in endovascular coiling of cerebral aneurysms
Authors: Keun Man Shin
Jung Hwan Ahn
Il Seok Kim
Jong Young Lee
Sang Soo Kang
Sung Jun Hong
Hyun Mo Chung
Hee Jae Lee
Publication date: 01-12-2015
Publisher: BioMed Central
Published in: BMC Anesthesiology / Issue 1/2015
Electronic ISSN: 1471-2253
DOI: https://doi.org/10.1186/1471-2253-15-8

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

The efficacy of pre-warming on reducing intraprocedural hypothermia in endovascular coiling of cerebral aneurysms

Abstract

Background

Methods

Results

Conclusion

Trial registration

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Background

Methods

Results

Conclusion

Trial registration

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