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T4 sympathectomy for palmar hyperhidrosis: looking for the right operation
Tarek Mahdy1, Tamer Youssef, Hesham Abd Elmonem
1Department of Surgery, Mansoura Faculty of Medicine, Mansoura University, Mansoura, Egypt. tmahdy@yahoo.com
Surgery
|June 14, 2008
Summary
Endoscopic thoracic sympathectomy at the T4 level is most effective for palmar hyperhidrosis, offering a 100% success rate and reducing side effects like compensatory sweating. This T4 sympathectomy provides superior patient satisfaction compared to T2 or T3 levels.
Area of Science:
- Thoracic Surgery
- Surgical Neurology
- Dermatology
Background:
- Palmar hyperhidrosis (PH) is commonly treated with T2 or T2-3 sympathectomy, but these procedures carry risks of severe side effects.
- Recent studies suggest T4 sympathectomy may yield better outcomes for PH.
- A comparative analysis of different sympathectomy levels is needed to optimize treatment for PH.
Purpose of the Study:
- To compare the efficacy and safety of T2, T3, and T4 endoscopic thoracic sympathectomy (ETS) for treating palmar hyperhidrosis.
- To evaluate patient satisfaction and the incidence of postoperative complications across different sympathectomy levels.
- To determine the optimal level of sympathectomy for managing PH and minimizing compensatory sweating.
Main Methods:
- A prospective study involving 60 patients with palmar hyperhidrosis, divided into three groups (ETS2, ETS3, ETS4) with 20 patients each.
- Data collection included medical chart review, outpatient notes, and telephone interviews assessing symptom relief, hand dryness, complications, and patient satisfaction.
- Outcomes measured included treatment success rates, overdryness, compensatory sweating, and patient-reported satisfaction.
Main Results:
- Treatment success rates were 90% for ETS2, 95% for ETS3, and 100% for ETS4.
- ETS4 demonstrated the lowest rates of overdryness (0%) and mild compensatory sweating compared to ETS2 (35% overdryness) and ETS3 (20% overdryness).
- Patient satisfaction was highest in the ETS4 group (100%), with significant dissatisfaction noted in ETS2 (40%) and ETS3 (25%) groups.
Conclusions:
- T4 endoscopic thoracic sympathectomy is a highly effective treatment for palmar hyperhidrosis, achieving complete symptom resolution in all patients.
- ETS4 significantly reduces the incidence and severity of compensatory sweating and overdryness, leading to superior patient satisfaction.
- T4 sympathectomy represents an improved surgical approach for palmar hyperhidrosis compared to T2 and T3 levels.

