» Articles » PMID: 38468077

Comparison of Tracheal Versus Esophageal Temperatures During Laparoscopic Surgery

Overview
Journal Can J Anaesth
Specialty Anesthesiology
Date 2024 Mar 12
PMID 38468077
Authors
Affiliations
Soon will be listed here.
Abstract

Purpose: Recently, endotracheal tubes with an embedded temperature sensor in the inner surface of the tube cuff (temperature tracheal tubes) have been developed. We sought to assess whether temperature tracheal tubes show a good agreement with esophageal temperature probes during surgery.

Methods: We enrolled 40 patients who underwent laparoscopic surgery in an observational study. The tracheas of all patients were intubated with a temperature tracheal tube, and an esophageal temperature probe was inserted into the esophagus. Tracheal and esophageal temperatures were recorded at 15-min intervals until the end of surgery. Temperatures from both devices were analyzed using Bland-Altman analysis, four-quadrant plots, and polar plots.

Results: We analyzed 261 data points from 36 patients. Temperatures ranges were 34.2 °C to 36.6 °C for the tracheal temperature tube and 34.7 °C to 37.2 °C for the esophageal temperature probe. Bland-Altman analysis showed an acceptable agreement between the two devices, with an overall mean bias (95% limit of agreement) of -0.3 °C (-0.8 °C to 0.1 °C) and a percentage error of 3%; the trending ability (temperature changes over time) between the two devices showed a concordance rate of 94% in four-quadrant plot (cut-off ≥ 92%), but this was higher than the acceptable mean angular bias of 177° (cut-off <  ± 5°) and radial limits of agreement of 52° (cut-off <  ± 30°) in the polar plot. Bronchoscopy during extubation and patient interviews at six hours postoperatively revealed no serious injuries related to the use of the temperature tracheal tube.

Conclusion: The temperature tracheal tube showed an acceptable overall mean bias of -0.3 °C and a percentage error of 3%, but incompatible trending ability with the esophageal temperature probe.

Study Registration: cris.nih.go.kr (KCT0007265); 22 April 2022.

References
1.
Sessler D . Perioperative Temperature Monitoring. Anesthesiology. 2020; 134(1):111-118. DOI: 10.1097/ALN.0000000000003481. View

2.
Frank S, Fleisher L, Breslow M, Higgins M, Olson K, Kelly S . Perioperative maintenance of normothermia reduces the incidence of morbid cardiac events. A randomized clinical trial. JAMA. 1997; 277(14):1127-34. View

3.
Kurz A, Sessler D, Lenhardt R . Perioperative normothermia to reduce the incidence of surgical-wound infection and shorten hospitalization. Study of Wound Infection and Temperature Group. N Engl J Med. 1996; 334(19):1209-15. DOI: 10.1056/NEJM199605093341901. View

4.
Rajagopalan S, Mascha E, Na J, Sessler D . The effects of mild perioperative hypothermia on blood loss and transfusion requirement. Anesthesiology. 2007; 108(1):71-7. DOI: 10.1097/01.anes.0000296719.73450.52. View

5.
Lenhardt R, Marker E, Goll V, Tschernich H, Kurz A, Sessler D . Mild intraoperative hypothermia prolongs postanesthetic recovery. Anesthesiology. 1998; 87(6):1318-23. DOI: 10.1097/00000542-199712000-00009. View