Effect of electrically heated humidifier on intraoperative core body temperature decrease in elderly patients: a prospective observational study
Anesthesia and Pain Medicine
; : 211-216, 2016.
Article
in En
| WPRIM
| ID: wpr-52552
Responsible library:
WPRO
ABSTRACT
BACKGROUND:
Core body temperature (TC) can decrease during general anesthesia. Particularly in elderly patients, more aggressive strategies to prevent intraoperative hypothermia may be required. Here, we investigated the effect of a heated humidifier on intraoperative TC decrease in the elderly.METHODS:
Twenty-four elderly patients were randomly assigned into two groups those who used a heated humidifier (group H) and those who used a conventional ventilator circuit with a heat moisture exchanger (group C). TC was measured continuously at the esophagus at several time-points during surgery.RESULTS:
In group C, TC significantly decreased 90 minutes after skin incision (P < 0.001), while significant differences were not noted in group H during surgery. Comparing the two groups, TC decreased more in group C than in group H at 60, 90, 120, and 150 minutes after skin incision (group C vs. group H -0.6℃ vs. -0.3℃, P = 0.025; -0.7℃ vs. -0.4℃, P = 0.012; -0.9℃ vs. -0.4℃, P = 0.006; and -1.0℃ vs. -0.5℃, P = 0.013, respectively). There were no significant differences between the two groups for any other parameters.CONCLUSIONS:
A heated humidifier is more effective in preventing intraoperative TC decrease in elderly patients than a heat moisture exchanger. However, further studies with a larger population are required to substantiate its clinical use.Key words
Full text:
1
Index:
WPRIM
Main subject:
Skin
/
Body Temperature
/
Anesthesia, Closed-Circuit
/
Ventilators, Mechanical
/
Prospective Studies
/
Esophagus
/
Observational Study
/
Hot Temperature
/
Heating
/
Humidity
Type of study:
Observational_studies
Limits:
Aged
/
Humans
Language:
En
Journal:
Anesthesia and Pain Medicine
Year:
2016
Type:
Article