Hypothermia Clinical Trial
Official title:
Effect of Pre-warming on Perioperative Hypothermia and Shivering During Holmium Laser Enucleation of the Prostate (HoLEP) Under Spinal Anesthesia
Inadvertent perioperative hypothermia is an unintentional drop in core body temperature below
36°C. Intraoperative hypothermia can lead to serious clinical complications such as,
myocardial ischemia, coagulopathy, immunosuppression, and surgical wound infection.
Hypothermia develops easily during surgeries that require irrigation fluid, such as
laparoscopic surgery and transurethral resection of the prostate. Although isothermic
irrigation fluid was suggested to prevent perioperative hypothermia, it can be difficult to
warm a large volume of irrigation fluid.
Re-distribution after induction of anesthesia is the most important cause of perioperative
hypothermia. The extent of re-distribution is proportional to the gradient between the core
and peripheral compartments. Pre-warming increases the heat content of the peripheral thermal
compartment, reducing the gradient for redistribution. Recently, A recent-meta analysis
suggested that as a single strategy, preoperative forced air warming had significant benefits
than other warming methods. Also, it was reported that only 20 (or even 10) min of
pre-warming mostly prevented patients from perioperative hypothermia under general
anesthesia. However, few studies have examined whether short time pre-warming can reduce
hypothermia due to a large amount of irrigation fluid during surgery under spinal anesthesia.
The purpose of this study is to assess whether the application of preoperative forced air
warming set to high temperature (> 43°C) for brief period can prevent hypothermia or
shivering during procedures requiring large volumes of cold irrigation.
n/a
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