Intraoperative body temperature control: esophageal thermometer versus infrared tympanic thermometer

Author(s)

Poveda, Vanessa de Brito ; Nascimento, Ariane de Souza

• Document type: Journal article
• Source: Revista da Escola de Enfermagem da USP; v. 50, n. 6, p. 6-pg., 2016-12-01.

Abstract

Objective: To verify the correlation between temperature measurements performed using an infrared tympanic thermometer and an esophageal thermometer during the intraoperative period. Method: A longitudinal study of repeated measures was performed including subjects aged 18 years or older undergoing elective oncologic surgery of the digestive system, with anesthesia duration of at least 1 hour. Temperature measurements were performed simultaneously by a calibrated esophageal thermometer and by a calibrated infrared tympanic thermometer, with laboratory reading precision of +/- 0.2 degrees C. The operating room temperature remained between 19 and 21 degrees C. Results: The study included 51 patients, mostly men (51%), white (80.4%). All patients were kept warm by a forced-air heating system, for an average of 264.14 minutes (SD = 87.7). The two temperature measurements showed no different behavior over time (p = 0.2205), however, tympanic measurements were consistently 1.24 degrees C lower (p<0.0001). Conclusion: The tympanic thermometer presented reliable results but reflected lower temperatures than the esophageal thermometer. (AU)

• FAPESP's process: 13/15536-3 - Perioperative hypothermia X bleeding, thermal discomfort and duration of post-anesthesia recovery room stay in patients submitted to digestive system cancer surgeries
• Grantee: Vanessa de Brito Poveda
• Support Opportunities: Regular Research Grants