Age-Related Thermoregulatory Differences in a Warm Operating Room Environment (Approximately 26°C)

El-Gamal, Nader; Elkassabany, Nabil; Frank, Steven M.; Amar, R; Khabar, Hassan Abu; El-Rahmany, Hossam K.; Okasha, Ahmed S.

doi:10.1097/00000539-200003000-00034

Cited by 99 publications

(56 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…First, the ambient temperature of the OR was El-Gamal et al [24] [14,26]. We thus ensured that the OR temperature was relatively low and, although the body temperature of the experimental groups were higher than those of the control group before tourniquet deflation, the body temperature of the control group was also maintained relatively well near the baseline until tourniquet deflation.…”

Section: Discussionmentioning

confidence: 99%

Comparison of warming methods for core temperature preservation during total knee arthroplasty using a pneumatic tourniquet

Kim

Koh

et al. 2016

Anesth Pain Med

View full text Add to dashboard Cite

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Background:It is important to ensure that patients are normothermic during surgery. In total knee arthroplasty, the pneumatic tourniquet affects body temperature. We compared the ability of two warming devices to preserve core temperature in patients using a lower limb tourniquet under general anesthesia. Methods: We included 132 patients with American Society of Anesthesiologists physical status I-II who were scheduled to undergo total knee arthroplasty. The patients were randomly divided into four groups (n = 33): group 1, without any heating method; group 2, with fluid warming; group 3, with forced-air warming; and group 4, with a combination of the two heating methods. After the induction of anesthesia, the esophageal and urinary bladder temperatures were monitored and recorded every 5 min before tourniquet deflation and every 1 min after tourniquet deflation. Results: Before tourniquet deflation, compared with group 1, the odds ratios of groups 3 and 4 were less than 1. After tourniquet deflation, compared with group 1, the odds ratios of all groups using warming devices were less than 1. In particular, group 4 showed the largest hypothermia-preventive effect among the four groups. There was a significant correlation between esophageal temperature and bladder temperature before and after tourniquet deflation. Conclusions: After tourniquet deflation, a combination of a fluid warmer and forced-air warmer is the most effective method to prevent hypothermia, although either a fluid warmer or forced-air warmer alone could help to prevent hypothermia. Urinary bladder temperature changes correlate well with esophageal temperature changes throughout this operation. (Anesth Pain Med 2016; 11: 91-98)

show abstract

Section: Discussionmentioning

confidence: 99%

Comparison of warming methods for core temperature preservation during total knee arthroplasty using a pneumatic tourniquet

Kim

Koh

et al. 2016

Anesth Pain Med

View full text Add to dashboard Cite

show abstract

“…It is known that in non-liver transplantation surgical procedures, normothermia usually can be maintained with an operating room temperature of 24°C to 26°C regardless of type and length of anesthesia or surgery. 14,15 Therefore, the sudden decrease in NT in the anhepatic phase and especially the reperfusion phase must be inherent to the liver transplantation procedure.…”

Section: Discussionmentioning

confidence: 99%

The effect of liver graft-body weight ratio on the core temperature of pediatric patients during liver transplantation

Jawan

Luk

Chen

et al. 2003

Liver Transplantation

View full text Add to dashboard Cite

The left lateral segment of the liver from an adult living donor sometimes is relatively too large for a small pediatric recipient. It currently is unknown whether a high graft-recipient body weight ratio (GRWR) has a significant effect on core temperature during the anhepatic and reperfusion phases of living donor liver transplantation (LDLT). Seventy-two pediatric patients undergoing LDLT were divided into two groups according to body weight. Group I (GI) consisted of patients with a body weight greater than 10 kg, and group II (GII), less than 10 kg. Core temperature, measured as nasopharyngeal temperature (NT), was compared between groups at induction of anesthesia, hourly during the following 6 hours, as the lowest core temperature at the anhepatic phase, 5 and 30 minutes after reperfusion, and the last 2 hours before the end of the operation. Mild hypothermia of 35.8°C ؎ 0.7°C and 35.9°C ؎ 0.4°C for GI and GII was noted after induction of anesthesia, respectively; this increased ؎1°C in the following 6 hours. In the anhepatic and reperfusion phases, a sudden and significant decrease in NT was observed in both groups. This decrease in NT was significantly greater in GII than GI. In conclusion, a sudden decrease in core temperature was observed during the anhepatic and reperfusion phases of LDLT in pediatric patients, likely caused by placement of the cold liver graft, which is flushed with 4°C lactated Ringer's solution during vessel reconstruction, in the anhepatic phase and return of venous blood through the cold preserved liver in the reperfusion phase. Core temperatures of pediatric patients with a body weight less than 10 kg in GII, who received grafts with a high GRWR, were more affected than those in GI. (Liver Transpl 2003;9:760-763.)

show abstract

“…Per 1 ° C higher ambient temperature, heat loss will be reduced by 10 % . To maintain normothermia with the ambient room temperature as sole method, more than 26 ° C would be necessary [26] . In a hospital setting, this is uncomfortable, especially for fully dressed surgeons, and therefore will only be acceptable in special settings.…”

Section: Elevated Ambient Temperaturesmentioning

confidence: 99%

Diagnosis, prevention and treatment of accidental and perioperative hypothermia

Brandt¹,

Mühlsteff

Imhoff³

2012

Biomedizinische Technik/Biomedical Engineering

View full text Add to dashboard Cite

Accidental hypothermia and its variant, perioperative hypothermia, is a rather common clinical phenomenon in patients. This is surprising because the negative effects on clinical outcomes are well described and effective patient-warming devices are available today. The aim of this paper is to describe the physiologic background of accidental and perioperative hypothermia, the clinical relevance and existing prophylaxis and treatment options. Patient warming techniques will be discussed in detail. Remaining technical and clinical challenges and the need for further research will be addressed. We will present existing guidelines and standards and analyse the impact of accidental and perioperative hypothermia on cost effectiveness.

show abstract

Age-Related Thermoregulatory Differences in a Warm Operating Room Environment (Approximately 26°C)

Abstract: By increasing ambient temperature in the operating room to 26 degrees C (79 degrees F), the incidence of core hypothermia can be dramatically reduced in both younger and older patients.

Cited by 99 publications

References 23 publications

Comparison of warming methods for core temperature preservation during total knee arthroplasty using a pneumatic tourniquet

Comparison of warming methods for core temperature preservation during total knee arthroplasty using a pneumatic tourniquet

The effect of liver graft-body weight ratio on the core temperature of pediatric patients during liver transplantation

Diagnosis, prevention and treatment of accidental and perioperative hypothermia

Contact Info

Product

Resources

About