Xu Zhong-fei, Duan Wei-yi, Shang De-hao, Dai Wei, Zheng Xiao-jiao, Sun Chang-fu
Department of Oral and Maxillofacial Surgery, China Medical University, Shenyang 110002, China.
Zhonghua Kou Qiang Yi Xue Za Zhi. 2011 May;46(5):290-2.
To evaluate the accuracy of Hadeco ES-1000spm hand-held doppler during the anterolateral thigh (ALT) flap harvest.
Twenty-five patients (26 sides) with ALT flaps for head and neck reconstruction between May 2005 and May 2010 received preoperative Doppler examination for the location of the cutaneous perforators of ALT flaps. The Doppler signals and body mass index (BMI) were recorded preoperatively according to ABC system. The locations of Doppler signals and of the actual cutaneous perforators at surgery were plotted and compared. The diameter of perforators was measured.
One to three cutaneous perforators of the ALT flap were consistently found at specific locations. They were named perforators A, B, C from proximal to distal. Perforators A, B and C were present in 15 (58%), 24 (92%) and 20 (77%) cases and the diameter (> 0.5 mm) of A, B and C were 11/15, 22 (92%) and 8 (40%) respectively. The Doppler signal was within 0.5 cm of the actual perforator location in 85% flaps. The accuracy of Doppler decreased with increase of BMI.
Preoperative assessment by hand-held Doppler is useful in predicting the perforator vessels' locations and diameter although it's accuracy is limited.
评估Hadeco ES - 1000spm手持式多普勒超声在股前外侧（ALT）皮瓣切取术中的准确性。
2005年5月至2010年5月期间，25例（26侧）接受ALT皮瓣用于头颈部重建的患者在术前接受了多普勒超声检查，以确定ALT皮瓣皮穿支的位置。术前根据ABC系统记录多普勒信号和体重指数（BMI）。绘制并比较手术中多普勒信号的位置与实际皮穿支的位置。测量穿支的直径。
在特定位置始终能发现1至3支ALT皮瓣的皮穿支。从近端到远端将它们命名为穿支A、B、C。穿支A、B和C分别出现在15例（58%）、24例（92%）和20例（77%）中，A、B和C的直径（> 0.5 mm）分别为11/15、22（92%）和8（40%）。在85%的皮瓣中，多普勒信号位于实际穿支位置的0.5 cm范围内。多普勒超声的准确性随BMI的增加而降低。
尽管手持式多普勒超声的准确性有限，但术前评估对预测穿支血管的位置和直径是有用的。
