RESUMEN
Objective Assess the value of intraoperative palmar temperature and brachial artery blood flow monitring during sympathectmy. Methods 150 cases palmar hyperhidrosis underwent transthoracic endoscopic sympathectomy. Palmar temperature was all monitored and brachial artery blood flow is also detected by ultrasonography in 33 cases. Results Palmar temperature increase (2.8?1.0)℃ after sympathetic chain has been destroyed [(include a high level increase of (3.24?0.20)℃ in 125 cases and a low level increase of (0.64?0.12)℃ in 25 cases]. Ultrasonography indicate brachial artery radius (R) and blood flow volume (VOL) are significantly increased, Maximum (Vmax) and Minimum (Vmin) speed of blood flow at systole and diastole, pulse index (PI) and systole/diastole blood flow ratio (S/D) are also increased (P