The Best Thoracic Sympathectomy Level for Palmar Hyperhidrosis: a Meta-analysis

Comparing Compensatory Sweating After Video-Assisted Thoracoscopic Sympathectomy: (T2-3) Versus (T2-4) Levels for Treating Palmar Hyperhidrosis

INTRODUCTION

Primary hyperhidrosis is a disease that is characterized by excessive sweating beyond what is required to maintain the normal temperature of the body. Moreover, it has a great adverse effect on the life of the affected persons because of problems in their social lives. There are different modalities to treat primary hyperhidrosis, including medical and surgical treatment. However, in sympathectomy, there is still a lack of strong evidence regarding which level should be targeted to achieve maximum benefit with fewer complications.

METHODS

This prospective clinical study was conducted at the Cardiothoracic Surgery Department, Alexandria Main University Hospital, Alexandria, Egypt, from September 2021 to Jan 2022. The study involved a total of 50 eligible consecutive patients who had bilateral primary palmar hyperhidrosis managed by bilateral, bi-portal, and tubeless thoracoscopic approach with conventional general anesthesia. Group A represents 25 patients with 13 males (52%) who had sympathetic chain cutting at the level of T2-3, and group B represents 25 patients with 15 males (60%) who had sympathetic chain cutting at the level of T2-4. The effect on palmar hyperhidrosis, compensatory hyperhidrosis, and overall patient satisfaction was assessed on the Visual Analog Scale (VAS).

RESULT

Ninety-eight percent of patients in both groups showed postoperative complete dryness of the hand and improvement of their symptoms. There was a statistically significant (p<0.001) difference regarding the degree of severity of compensatory sweating post-operatively between both groups. In group A, 44% of patients had compensatory sweating, while in group B, 96% of patients had symptoms of compensatory sweating with varying degrees from 1 to 5 on a VAS-Score of five degrees.

CONCLUSION

The level of cauterization has no significant effect on palmar hyperhidrosis dryness after cutting the sympathetic chain at level (T2-3) vs. (T2-4). However, the greater the number of levels that are cauterized, which are three levels rather than two, the more severe the compensatory sweating in this study.

The Rate of Compensatory Sweating and Clinical Outcomes of Selective Thoracoscopic Sympathectomy (Ramicotomy) in Patients with Primary Palmar Hyperhidrosis

Background: Primary hyperhidrosis is a sympathetic disorder characterized by prolonged and uncontrollable sweating. It is associated with emotional stress or psychological causes that preferably affects the axillae, palms, feet, and face. Video-assisted thoracoscopic sympathetic surgery is currently a globally recognized treatment for primary palmar hyperhidrosis (PH). However, compensatory sweating (CS) is the most prominent long-term adverse effect of thoracoscopic sympathectomy. Objectives: Here, we aim to perform selective sympathetic ramicotomy for primary palmar hyperhidrosis patients and evaluate the clinical outcomes of satisfaction, as well as the effect on the frequency, location, and severity of compensatory sweating. Methods: In this single-arm trial study, 24 sympathectomies were carried out on 12 patients with primary palmar hyperhidrosis who were candidates for bilateral thoracoscopic selective sympathectomy (ramicotomy) at Imam Khomeini Hospital. The patients’ demographic information was interviewed and followed up using telephone questionnaires in the health center one week after surgery. Then, the rates of compensatory sweating, satisfaction, and failure or recurrence were retrospectively analyzed. Results: No significant differences were observed between age, gender, weight, BMI, and compensatory sweating rates. Notwithstanding, there was a statistically significant difference in the severity of compensatory sweating with patients’ height (P = 0.016). Compensatory sweating occurred in 66.7% of the patients; 50% of the patients were mild, 16.7% of the patients were moderate, and there was no intolerable compensatory sweating or recurrence. The most incidence of compensatory sweating was on the lower back. The rate of satisfaction was 94.5 ± 7.8%. Conclusions: Selective thoracoscopic sympathectomy (ramicotomy) is an effective surgical procedure with a very high level of precision and satisfaction. This technique hence should be considered the method of choice for the treatment of primary palmar hyperhidrosis.