Universität zu Köln

Guschlbauer, Maria ORCID: 0000-0002-5401-4542, Maul, Alexandra C., Yan, Xiaowei, Herff, Holger, Annecke, Thorsten ORCID: 0000-0002-2496-4432, Sterner-Kock, Anja, Boettiger, Bernd W. and Schroeder, Daniel C. (2016). Zero-Heat-Flux Thermometry for Non-Invasive Measurement of Core Body Temperature in Pigs. PLoS One, 11 (3). SAN FRANCISCO: PUBLIC LIBRARY SCIENCE. ISSN 1932-6203

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Abstract

Hypothermia is a severe, unpleasant side effect during general anesthesia. Thus, temperature surveillance is a prerequisite in general anesthesia settings during experimental surgeries. The gold standard to measure the core body temperature (T-core) is placement of a Swan-Ganz catheter in the pulmonary artery, which is a highly invasive procedure. Therefore, T-core is commonly examined in the urine bladder and rectum. However, these procedures are known for their inaccuracy and delayed record of temperatures. Zero-heat-flux (ZHF) thermometry is an alternative, non-invasive method quantifying T-core in human patients by applying a thermosensoric patch to the lateral forehead. Since the porcine cranial anatomy is different to the human's, the optimal location of the patch remains unclear to date. The aim was to compare three different patch locations of ZHF thermometry in a porcine hypothermia model. Hypothermia (33.0 degrees C T-core) was conducted in 11 anesthetized female pigs (26-30kg). T-core was measured continuously by an invasive Swan-Ganz catheter in the pulmonary artery (T-pulm). A ZHF thermometry device was mounted on three different defined locations. The smallest average difference between T-pulm and T-ZHF during stable temperatures was 0.21 +/- 0.16 degrees C at location A, where the patch was placed directly behind the eye. Also during rapidly changing temperatures location A showed the smallest bias with 0.48 +/- 0.29 degrees C. Location A provided the most reliable data for T-core. Therefore, the ZHF thermometry patch should be placed directly behind the left temporal corner of the eye to provide a non-invasive method for accurate measurement of T-core in pigs.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Guschlbauer, Maria UNSPECIFIED orcid.org/0000-0002-5401-4542 UNSPECIFIED Maul, Alexandra C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yan, Xiaowei UNSPECIFIED UNSPECIFIED UNSPECIFIED Herff, Holger UNSPECIFIED UNSPECIFIED UNSPECIFIED Annecke, Thorsten UNSPECIFIED orcid.org/0000-0002-2496-4432 UNSPECIFIED Sterner-Kock, Anja UNSPECIFIED UNSPECIFIED UNSPECIFIED Boettiger, Bernd W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schroeder, Daniel C. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-281742
DOI:	10.1371/journal.pone.0150759
Journal or Publication Title:	PLoS One
Volume:	11
Number:	3
Date:	2016
Publisher:	PUBLIC LIBRARY SCIENCE
Place of Publication:	SAN FRANCISCO
ISSN:	1932-6203
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MILD PERIOPERATIVE HYPOTHERMIA; THERAPEUTIC HYPOTHERMIA; HEMORRHAGIC-SHOCK; WOUND-INFECTION; CARDIAC-ARREST; BLOOD-LOSS; ANESTHESIA; SWINE; MODEL; NORMOTHERMIA Multiple languages Multidisciplinary Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/28174