【Abstract】 ObjectiveTo observe the clinical efficacy of singleport thoracoscopic thoracic sympathectomy for the treatment of palmar hyperhidrosis. MethodsFortytwo patients with palmar hyperhidrosis in our hospital were enrolled. General anesthesia and singlelumen endotracheal intubation were performed. A incision was made at the fourth intercostal space between midaxillary line and posterior axillary line. Video thoracoscope was inserted through the Trocor. The sympathetic chain resection was conducted using electrocautery on the surface of the third and forth ribs. Threemonth followup was performed after operation to assess the therapeutic efficacy. ResultsThe operation was completed successfully in the 42 patients. The duration for lateral operation and the hospital stay were 25～55(30.5±5.2) min and（3.8±1.2）d respectively. Hyperhidrosis was completely occurred in both groups in all patients after operation, the operative effectiveness rate was 100%. The symptom vanished completely in 2 cases complicated with plantar hyperhidrosis and in the cases with facial and axillary hyperhidrosis. Two cases suffered from mild pneumothorax after operation, but recovered after thoracentesis. No Horner′s syndrome occurred. During 3month of postoperative followup, on recurrence was found in any cases, compensated hyperhidrosis in 9 cases including 5 cases with mild, 4 cases with moderate. ConclusionSingleport thoracoscopic lateral thoracic sympathectomy can obtain a significant efficacy for palmar hyperhidrosis, is minimally invasive and safe, and is worthy of promotion and application.

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