Jiang P, Luo L
Department of Plastic Surgery, Nanfang Hospital, First Military Medical University, Guangzhou.
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi. 1997 Mar;11(2):69-71.
In order to observe the effect of far infrared rays on the survival of skin flap, the following experiment was performed. Forty-eight SD rats were selected and divided into two groups. The rats received 0.3 w/cm2 radiation twice a day from 3 days before operation to 5 days after operation in the experimental group, while in the control group the rats received none before or after the operation. The flap was designed as 2 cm x 6 cm in the back of the rats with the pedicle caudalward. The microcirculatory changes of the flap were observed, and the survival area of the flap was calculated. The results showed that either in the proximal or in the distal part of the graft, in the experimental group, the mean opening rate, diameter and the flowing velocity of the microvessels were significantly higher than those in the control group (P < 0. 05). The mean rate of survival area of the experimental group (80.5%) was also higher than that of the control group (62.7%) (P < 0.01). It was suggested that radiation with far infrared rays could dilate the microvessels, improve the flap microcirculation, therefore, enhance the survival of the randomized skin flap.
为观察远红外线对皮瓣存活的影响，进行了以下实验。选取48只SD大鼠，分为两组。实验组大鼠于术前3天至术后5天每天接受两次0.3 w/cm2的辐射，而对照组大鼠在手术前后均未接受辐射。在大鼠背部设计2 cm×6 cm的皮瓣，蒂部向尾侧。观察皮瓣的微循环变化，并计算皮瓣的存活面积。结果显示，在实验组，无论是皮瓣近端还是远端，微血管的平均开放率、管径和血流速度均显著高于对照组（P<0.05）。实验组的平均存活面积率（80.5%）也高于对照组（62.7%）（P<0.01）。提示远红外线辐射可扩张微血管，改善皮瓣微循环，从而提高随意皮瓣的存活率。
