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Related Experiment Videos

Thoracoscopic sympathectomy for palmar hyperhidrosis: effects on pulmonary function.

M Y Tseng1, J H Tseng

  • 1Division of Neurosurgery, Department of Surgery, Medical School and Hospital, National Taiwan University, 7 Chung-Shan South Road, Taipei, Taiwan, R.O.C. tmy59100@ms4.hinet.net

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|January 15, 2002
PubMed
Summary

Thoracoscopic sympathectomy for palmar hyperhidrosis slightly reduces pulmonary function, particularly small airway function. This minimally invasive procedure offers a potential treatment for excessive sweating with manageable pulmonary changes.

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Area of Science:

  • Thoracic surgery
  • Pulmonary medicine
  • Neurosurgery

Background:

  • Palmar hyperhidrosis is often treated with sympathectomy, targeting sympathetic nerves in the thoracic ganglia.
  • Previous open sympathectomy procedures have been linked to significant pulmonary function decline.
  • Thoracoscopic sympathectomy offers a less invasive approach for treating palmar hyperhidrosis.

Purpose of the Study:

  • To evaluate the impact of thoracoscopic sympathectomy on pulmonary function in patients with palmar hyperhidrosis.
  • To compare pulmonary function before and after the minimally invasive surgical procedure.

Main Methods:

  • Pulmonary function tests were conducted on 20 patients before and four weeks after thoracoscopic sympathectomy.
  • Key spirometry parameters including Forced Vital Capacity (FVC) and Forced Expiratory Volume in one second (FEV1) were analyzed.

Related Experiment Videos

  • Flow-volume curve parameters, such as Vmax25, Vmax50, and Vmax75, were assessed.

    • Main Results:

    • A statistically significant decrease was observed in FVC (-2.3%), FEV1 (-6.1%), and FEV1/FVC (-4.6%) four weeks post-surgery.
    • Instantaneous expiratory flow rates at 75%, 50%, and 25% of FVC (Vmax75, Vmax50, Vmax25) also decreased, notably Vmax25 by -20% and Vmax50 by -8.4%.
    • These findings suggest a minimal restrictive effect alongside a more evident subclinical small airway obstruction.

    Conclusions:

    • Thoracoscopic sympathectomy leads to slight but significant reductions in overall pulmonary function.
    • The procedure may unmask or exacerbate subclinical small airway obstruction, necessitating further investigation.
    • While thoracoscopic sympathectomy minimizes pulmonary restrictive effects compared to open surgery, its impact on small airways warrants consideration.