title: Evaluation of plantar hyperhidrosis in patients undergoing video-assisted thoracoscopic sympathectomy.
abstract: BACKGROUND
  Sympathectomy is the treatment of choice for primary hyperhidrosis. One curious occurrence that is difficult to explain from an anatomophysiological point of view in cases of video-assisted thoracoscopic sympathectomy (VATS) for the treatment of palmar hyperhidrosis (PH) is the observed improvement in plantar hyperhidrosis (PLH). Nevertheless, current reports on VATS rarely describe the effect on PLH or just give superficial data. The aim of this study was to prospectively investigate, how surgery affects PLH in patients with PH and PLH over one-year period.
  
  
  METHODS
  From May 2003 to January 2004, 70 consecutive patients with combined PH and PLH underwent VATS at the T2, T3, or T4 ganglion level (47 women and 23 men, with mean age of 23 years).
  
  
  RESULTS
  Immediately after the operation, all the patients said they were free from PH episodes, except for two patients (2.8%) who suffered from continued PH. Compensatory hyperhidrosis (CH) of various degrees was observed in 58 (90.6%) patients after one year. Only 13 (20.3%) suffered from severe CH. There was a great initial improvement in PLH in 50% of the cases, followed by progressive regression, such that only 23.4% still presented that improvement after one year. The number of cases without overall improvement increased progressively (from 17.1% to 37.5%) and the numbers with slight improvement remained stable (32.9-39.1%). Of the 24 patients with no improvement after one year, 6 patients graded plantar sweating worse.
  
  
  CONCLUSIONS
  Patients with PH and PLH who undergo VATS to treat their PH present a good initial improvement in PLH that reduces to a lower level of improvement after the one-year period.
authors.affiliation: Dept. of Vascular and Endovascular Surgery, Hospital das Clínicas School of Medicine, University of São Paulo, São Paulo, Brazil. nwolosker@yahoo.com.br
authors.forename: Nelson
authors.initials: N
authors.lastname: Wolosker
authors.forename: Guilherme
authors.initials: G
authors.lastname: Yazbek
authors.forename: José Ribas
authors.initials: JR
authors.lastname: Milanez de Campos
authors.forename: Paulo
authors.initials: P
authors.lastname: Kauffman
authors.forename: Augusto
authors.initials: A
authors.lastname: Ishy
authors.forename: Pedro
authors.initials: P
authors.lastname: Puech-Leão
mesh_terms: D000328:Adult; D005260:Female; D005528:Foot / Q000503:physiopathology; D006225:Hand / Q000503:physiopathology; D006801:Humans; D006945:Hyperhidrosis / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D011446:Prospective Studies; D013562:Sympathectomy; D020775:Thoracic Surgery, Video-Assisted; D013997:Time Factors; D016896:Treatment Outcome