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  • Title: Operative monitoring of hand and axillary temperature during endoscopic superior thoracic sympathectomy for the treatment of palmar hyperhidrosis.
    Author: Sáiz-Sapena N, Vanaclocha V, Panta F, Kadri C, Torres W.
    Journal: Eur J Surg; 2000 Jan; 166(1):65-9. PubMed ID: 10688220.
    Abstract:
    OBJECTIVE: To find out how much the temperature in the palm rises after upper thoracic sympathectomy for palmar hyperhidrosis, and correlate the temperature with the outcome. DESIGN: Retrospective study. SETTING: University hospital, Spain. SUBJECTS: 73 patients (34 women and 39 men, age range 16-42 years, mean 26) who were operated for palmar hyperhidrosis between 1 January 1995 and 31 December 1997. INTERVENTIONS: Bilateral thoracic endoscopic sympathectomy during which the temperature was monitored on the skin of both axillae and thenar eminences, and in the oesophagus. MAIN OUTCOME MEASURES: Morbidity, alleviation of hyperhidrosis, recurrence rate, and differences in temperature postoperatively. RESULTS: There was minor bleeding during operation in 25 cases (34%), but in only 4 was it sufficient to require insertion of a drain; 2 patients developed transient Homer's syndrome; but the most common complication was compensatory hyperhidrosis (n = 52, 71%). In only 5 was this other than mild and required treatment with aluminium chloride in ethanol 25%. Palmar hyperhidrosis was alleviated in all cases, axillary sweating was considerably improved, and there was improvement in the feet in 56 (77%). There were 5 recurrences, all on the right side, during a mean follow up of 9 months (range 2-36), but in no case was the sweating severe. In almost all cases the temperature of the palm was less than that of the axilla before operation by a mean (SD) of 0.9 (0.3) degrees C. The rise in temperature varied from 1.7 (0.4) degrees C to 2.6 (0.4) degrees C. In the 5 patients who developed recurrences the increase was less (0.5 (0.4) degrees C). CONCLUSION: Thoracic endoscopic sympathectomy is safe, simple, and effective in treating palmar hyperhidrosis that has not responded to conservative treatment. Intradermal monitoring is an accurate and cost-effective way of monitoring temperature during operation. Although it is essential to achieve a rise in temperature of 1 degrees C, our most important finding was that the final temperature in both hands and axillae should be above 35 degrees C and as near as possible to 36 degrees C.
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