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Chapter-31 Temperature Monitoring

BOOK TITLE: Monitoring in Anesthesia and Critical Care

Author
1. Sharma Sanjay
2. Rosewarne Fred
ISBN
9789352700431
DOI
10.5005/jp/books/18044_32
Edition
1/e
Publishing Year
2018
Pages
14
Author Affiliations
1. AIIMS, New Delhi, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India, Bombay Hospital and Lilavati, Hospital and Medical Research, Centre, Mumbai, Maharashtra, India, AIIMS, New Delhi, India, All India Institute of Medical Sciences, New Delhi, All India Institute of Medical Sciences, New Delhi, India, St. George’s, University of London, UK; St. George’s University of London, Cranmer Terrace, London SW17 0RE, UK, Ramakrishna Care Hospital, Raipur, Chhattisgarh, India, Dr Rajendra Prasad Center for Ophthalmic Sciences, All India Institute for Medical Sciences, New Delhi, India, Ballarat Health Services, Ballarat, Victoria, Australia, St George’s University Hospital Foundation Trust and St George’s, University of London, UK, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
2. Ballarat Health Services, Ballarat, Victoria, Australia
Chapter keywords
Temperature monitoring, normothermia, thermoregulation, mercury thermometer, alcohol thermometer, liquid crystal, infrared radiation, perioperative hypothermia

Abstract

This chapter will provide a review into the importance of intraoperative temperature monitoring as a means of maintaining normothermia. The hypothalamus functions as the center for temperature control in the body, integrating thermal input, and coordinating measures to maintain normothermia. It receives signals relating to core temperature, and utilizes a negative feedback system to maintain balance by altering heat loss and increasing heat production as required. Monitoring of core body temperature can be achieved using nasopharyngeal, tympanic membrane, or distal esophageal thermometer probes. In order to minimize temperature-related complications under anesthesia, it is generally recommended that core temperature be monitored in patients undergoing major surgery under regional blocks or having general anesthesia lasting over 30 minutes. Target for maintenance of core temperature should be between 36°C and 37°C.

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