In the fixed effect model , the warming group had significantly less pain and lower incidence of wound infection , compared with the no-warming group .
In the r and om effect model , the warming group was also associated with lower risk of post-anesthetic shivering .
Both in the r and om and the fixed effect models , the warming group was associated with significantly less blood loss .
Perioperative warming of surgical patients is effective in reducing postoperative wound pain , wound infection and shivering .
Systemic warming of the surgical patient is also associated with less perioperative blood loss through preventing hypothermia-induced coagulopathy .
OBJECTIVE The objective of this review was to systematic ally analyze the trials on the effectiveness of perioperative warming in surgical patients .
Prevention of Intraoperative Hypothermia by Preoperative Skin-Surface Warming
Background : Intraoperative hypothermia initially results from internal redistribution of heat facilitated by anesthesia-induced vasodilatlon . Preinductlon skin-surface warming minimizes postinduction hypothermia in anesthetized volunteers . However , its efficacy might be reduced in surgical situations , because of multiple sources of heat loss . Methods : Intraoperative core and mean skin temperatures were measured during total hip arthroplasty in 16 patients , r and omly assigned to be covered preoperatlvely with a warming blanket for ≥90 min ( prewarmed group ) or not covered ( unwarmed group ) . Results : During the first hour of anesthesia , core temperature decreased more than twice as much in the unwarmed group ( −0.7 ± 0.1 ° C ; mean ± SE ) than in the prewarmed patients ( −0.3 ± 0.1 ° C ) . At the end of surgery , core temperature was 36.3 ± 0.1 ° C in the prewarmed group and 35.2 ± 0.2 ° C in the unwarmed group . During recovery , seven patients obviously shivered in the unwarmed group and none in the prewarmed group . Conclusions : Preanesthetic skin-surface warming reduces the initial postinductlon hypothermia in surgical patients , preventing intraoperative hypothermia and postoperative shivering even for procedures lasting 3 h or longer
In the fixed effect model , the warming group had significantly less pain and lower incidence of wound infection , compared with the no-warming group .
In the r and om effect model , the warming group was also associated with lower risk of post-anesthetic shivering .
Both in the r and om and the fixed effect models , the warming group was associated with significantly less blood loss .
Perioperative warming of surgical patients is effective in reducing postoperative wound pain , wound infection and shivering .
Systemic warming of the surgical patient is also associated with less perioperative blood loss through preventing hypothermia-induced coagulopathy .
OBJECTIVE The objective of this review was to systematic ally analyze the trials on the effectiveness of perioperative warming in surgical patients .