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ovil001

Current Opinion in Anaesthesiology:
December 2009 - Volume 22 - Issue 6 - p 769–774
Forced-air warming: technology, physical background and practical aspects
Bräuer, Anselm; Quintel, Michael
AbstractPurpose of review: There is an ever-increasing number of forced-air warming devices available in the market. However, there is also a paucity of studies that have investigated the physical background of these devices, making it difficult to find the most suitable ones.

Recent findings: Heat flow produced by power units depends on the air temperature at the nozzle and the airflow. The heat transfer from the blanket to the body surface depends on the heat exchange coefficient, the temperature gradient between the blanket and the body surface and the area that is covered. Additionally, the homogeneity of heat distribution inside the blanket is very important. The lower the temperature difference between the highest and the lowest blanket temperature, the better the performance of the blanket.

Summary: The efficacy of a forced-air warming system is mainly determined by the design of the blankets. A good forced-air warming blanket can easily be detected by measuring the temperature difference between the highest blanket temperature and the lowest blanket temperature. This temperature difference should be as low as possible. Because of the limited efficacy of forced-air warming systems to prevent hypothermia, patients must be prewarmed for 30–60 min even if a forced-air warming system is used during the operation. During the operation, the largest blanket that is possible for the operation should be used.

chzhx206

谢谢老师 以后有什么查不到的英文文献 可以请教老师

ovil001

Arch Surg. 1983 Mar;118(3):347-52.
The influence of hair-removal methods on wound infections.
Alexander JW, Fischer JE, Boyajian M, Palmquist J, Morris MJ.
Abstract
The influence of preoperative shaving v clipping on wound infection rate was studied in 1,013 patients undergoing elective operations at a single hospital. Patients were prospectively randomized to be either shaved or clipped the night before or the morning of operation. The AM clipper method was associated with significantly fewer infections than were the other methods, both at discharge and at 30-day follow-up. The greatest benefit was in the group with clean wounds. For each 1,000 patients treated, a savings of approximately $270,000 could be realized if the AM clipper method replaced shaving for preoperative hair removal. Preoperative shaving is deleterious, and the practice should be abandoned.

ovil001

楼主最近没有更新和恢复了啊

gjs661

Brilli R., et al.: Pediatric VAP bundle reduces VAP in PICU, NICU, CICU.
Crit Care Med 34(12 Abstract Supplement):A90, Dec. 2006.