T3/T4 thoracic sympathictomy and compensatory sweating in treatment of palmar hyperhidrosis:

Incidence and Severity of Compensatory Hyperhidrosis Following Bilateral Sympathectomy

BACKGROUND

Primary hyperhidrosis is a condition caused by an excessive stimulation of sweat glands, leading to a decline in both quality of life and social wellbeing. Thoracic sympathectomy surgery provides a relief of the initial symptoms but poses a risk for developing compensatory hyperhidrosis (CH) in various degrees.

OBJECTIVE

The aim of this study was to assess the occurrence and characteristics of CH post-thoracic sympathectomy.

METHODS

A retrospective cohort study of patients who underwent video-assisted thoracic sympathectomy surgery at level T2-T3 between 2016 and 2022 was conducted. Patients' data were retrieved from medical records and through a telephone interview.

RESULTS

A total of 50 patients (32 males and 18 females) were operated on with a mean ± standard deviation (SD) age of 25.9 ± 7.4 years at the time of surgery for palmoplantar hyperhidrosis. Initial symptoms started in childhood at a mean ± SD age of 11.4 ± 3.3 years. Postoperatively, 39 patients (78%) developed CH, more prevalent in males (64.1%) compared to females (35.8%). This CH mainly affected the back and abdomen (100%), followed by the groin and thighs (28.2%), and, to a lesser extent, the craniofacial area (15.3%). Onset of symptoms occurred within 1 week after surgery in 71.7% of cases, with 71.7% reporting mild to moderate symptoms. CH was significantly associated with higher age at the time of surgery, smoking status, and a longer time lapse in the surgery operation (P value < 0.05).

CONCLUSIONS

Thoracic sympathectomy is an effective procedure with a high success rate. Despite a relatively higher occurrence of CH, most patients experience milder symptoms and express satisfaction, noting that their expectations were met following the surgery.

Changes in electrodermal activity following sympathicotomy in hyperhidrosis patients

Objectives

The aim of this study was to assess the potential of electrodermal activity (EDA) as a diagnostic tool for preoperative evaluation in hyperhidrosis patients. EDA levels and patterns in different skin areas were investigated before and after endoscopic thoracic sympathicotomy (ETS) and was compared to healthy subjects.

Methods

Thirty-seven patients underwent two days of measurements before and after the operation. Twenty-five (67.5%) of the patients also had a third measurement after six months. Non-invasive EDA measurements, involving skin conductance, were sampled from five different skin areas while patients were at rest in supine and sitting positions or when subjected to stimuli such as deep inspirations, mental challenge, and exposure to a sudden loud sound.

Results

Prior to the operation, hyperhidrosis patients showed higher spontaneous palm EDA variations at rest and stronger responses to stimuli compared to healthy subjects. Patients with facial blushing/hyperhidrosis or combined facial/palmar hyperhidrosis showed minimal spontaneous activity or responses, particularly during mental challenge and sound stimulus. Notably, palm EDA response was abolished shortly following sympathicotomy, although a minor response was observed after six months. Minimal EDA responses were also observed in the back and abdomen postoperatively.

Conclusion

Hyperhidrosis patients showed stronger EDA response to stimuli compared to healthy subjects. Sympathicotomy resulted in the complete elimination of palm EDA responses, gradually returning to a limited extent after six months. These findings suggest that EDA recordings could be utilized in preoperative assessment of hyperhidrosis patients.

Impact of Thoracoscopic T2 Sympathectomy on Patients With Primary Palmar and Axillary Hyperhidrosis

BACKGROUND

There are different techniques for thoracoscopic sympathectomy for management of primary hyperhidrosis. Each technique has the advantage of giving good surgical results, but may cause complications, which depend on the level of sympathectomy used in each technique.

METHODS

From October 2012 to August 2016, a total number of 120 patients (of primary palmar and axillary hyperhidrosis) were enrolled in this prospective randomized study. Patients were randomized preoperatively and divided into 2 groups: group A (underwent T2, T3, and T4 sympathectomy) and group B (underwent T3 and T4 sympathectomy) with 1 year of follow-up. Improvement of palm sweating, development of complications, patient satisfaction, and quality of life were evaluated.

RESULTS

Family history was positive in 33 patients (55%) in group A and in 31 patients (52%) in group B. All patients had improvement of hand sweating. Overdry hands were significant in group A (p = 0.032). Compensatory sweating was significant in group A after the first month (p = 0.016), after 6 months (p = 0.022), and after 12 months (p = 0.025). In group B, very satisfied patients were significant after 6 and 12 months (p = 0.002 and 0.000, respectively).

CONCLUSIONS

Limited sympathectomy to the level of T3 and T4 has the same therapeutic effect obtained by T2, T3, and T4 sympathectomy with less complications, greater patient satisfaction, and better quality of life. It should be the technique of choice for treatment of primary palmar and axillary hyperhidrosis.

Comparison between high and low levels thoracic sympathectomy for the treatment of palmar and axillary primary hyperhidrosis: systematic review and meta-analysis

Primary hyperhidrosis (PH) is a condition that has a great impact on affected individuals' quality of life, regardless of its location. Its surgical treatment is done through thoracic sympathectomy performed by videothoracoscopy. Standardization of the technique includes section of the sympathetic trunk at different levels, according to the site of symptoms. The aim of this review is to evaluate the efficacy of thoracic sympathectomy through a systematic literature review comparing sympathectomy at different levels of the sympathetic chain.

T3 versus T4 thoracoscopic sympathectomy for palmar hyperhidrosis: a meta-analysis and systematic review

BACKGROUND

Palmar hyperhidrosis (PH) is a benign sympathetic disorder that can adversely affect the quality of life of patients. Thoracic sympathectomy (TS) at the T3 or T4 level has been used to treat PH. We aimed to determine the optimal denervation level for TS by comparing the efficacy of T3 TS versus T4 TS in PH patients.

METHODS

We searched the PubMed, Ovid MEDLINE, EMBASE, Web of Science, ScienceDirect, the Cochrane Library, Scopus, and Google Scholar databases for studies comparing T3 versus T4 TS for PH. Clinical end points included symptom resolution, patient satisfaction, and complications.

RESULTS

Of 2201 articles reviewed, 10 (T3 group, 566 patients; T4 group, 629 patients) were selected. T4 TS was associated with a lower incidence of postoperative compensatory sweating, dry hands, and gustatory sweating than T3 TS. No significant difference in symptom resolution or patient satisfaction was found between the T3 and T4 groups.

CONCLUSIONS

T4 TS may be superior to T3 TS in patients with PH. However, this finding should be validated in high-quality, large-scale randomized controlled trials.

Comparison of the Long-Term Results of R3 and R4 Sympathicotomy for Palmar Hyperhidrosis

BACKGROUND

Video-assisted thoracoscopic sympathicotomy has been determined to be the best way to treat palmar hyperhidrosis. However, satisfaction with the surgical outcomes decreases with the onset of compensatory hyperhidrosis (CH) over time. The ideal level of sympathicotomy is controversial. Therefore, we compared the long-term results of R3 and R4 sympathicotomy.

METHODS

We retrospectively reviewed 186 patients who underwent video-assisted thoracoscopic sympathicotomy between September 2001 and September 2015. We analyzed the long-term results with respect to hand sweating and CH, and the overall satisfaction in 186 patients.

RESULTS

With respect to hand sweating, significantly more patients complained of overly dry hands in the R3 group (25% versus 3.7%, p<0.001) and of mildly wet hands in the R4 group (2.9% versus 13.4%, p=0.007). There was a significantly increased occurrence rate of CH in the R3 group (97.1% versus 65.9%, p< 0.001). The most frequent site of CH was the trunk area. The overall satisfaction was higher in the R4 group, but without significance (75% versus 85.4%, p=0.082). Significantly more patients reported being very satisfied in the R4 group (5.8% versus 22.0%, p=0.001).

CONCLUSION

The R4 group had a higher rate of satisfaction than the R3 group with respect to hand sweating. CH and hand dryness were significantly less common in the R4 group than in the R3 group. The lower occurrence of hand dryness and CH resulted in a higher satisfaction rate in the R4 group.

Optimal targeting of sympathetic chain levels for treatment of palmar hyperhidrosis: an updated systematic review

BACKGROUND

Palmar hyperhidrosis involves excessive sweating of the palms, with no known etiology. Endoscopic thoracic sympathectomy (ETS) is a safe and effective treatment for palmar hyperhidrosis, but compensatory hyperhidrosis is a common complication after ETS, leading to reduced patient satisfaction and postoperative quality of life. However, the appropriate level of the sympathetic chain to target with ETS to achieve maximum efficacy and reduce the risk of compensatory hyperhidrosis (CH) is controversial. In this systemic review, we investigated the appropriate level of sympathectomy for palmar hyperhidrosis.

METHODS

PRISMA guidelines were implemented to complete a systematic review. We performed a computerized systematic literature search using PubMed and EMBASE from January 1990 to July 2016. We chose the Cochrane Collaboration's tool and the methodological index for non-randomized studies tool for examining study bias.

RESULTS

A total of 4075 citations were identified, of which 91 were eligible for inclusion, including 68 observational studies and 23 comparative trials. In observational studies, sympathectomies showed similar efficacies for curing PH at different levels. However, T2-free groups (i.e., at levels T3, T4, or T3-T4 combined) could render a lower risk of Horner's syndrome (0 vs. 1.21 ± 0.49%, p = 0.036) and CH (28.75 ± 7.25 vs. 57.46 ± 3.86, p = 0.002) compared with T2 involved. In comparative trials, there were 12 studies describing the comparison between T2-free ETS and T2 involved, and 9 of 12 (75%) showed T2-free ETS could reduce the incidence of CH. Overall, lowering the level and limiting the extent of sympathectomy could reduce the incidence of complications.

CONCLUSIONS

Cumulative data from more than 13,000 patients suggest that ETS is a safe, effective, and reproducible procedure with a high degree of patient satisfaction. Currently available evidence suggests that T2-free ETS may reduce the incidence of compensatory hyperhidrosis without compromising success rates and safety.

A systematic review and meta-analysis of T2, T3 or T4, to evaluate the best denervation level for palmar hyperhidrosis

We systematically reviewed and compared the clinical outcomes of thoracoscopic sympathectomy (TS) at different denervation levels for palmar hyperhidrosis. We searched PubMed, Ovid MEDLINE, EMBASE, Web of Science, ScienceDirect, the Cochrane Library, Scopus and Google Scholar for relevant studies published during 1990-2016. Symptom resolution, patient satisfaction, compensatory sweating (CS), recurrence, dry hands and gustatory sweating were assessed. We selected 13 studies from 2228 for the final analysis. A comparison of T2 vs. T3 TS revealed that T3 TS reduced the risk of CS (95% confidence interval [CI]: 1.36-3.19, p = 0.0007) and moderate-to-severe CS (95% CI: 2.14-7.87, p < 0.0001). No significant differences were found in patient satisfaction, symptom resolution, and incidence of dry hands and gustatory sweating. A comparison of T3 vs. T4 TS revealed that T4 TS reduced the risk of CS (95% CI: 2.87-9.53, p < 0.00001), moderate-to-severe CS (95% CI: 2.54-5.83, p < 0.00001), dry hands (95% CI: 4.07-18.13, p < 0.00001) and gustatory sweating (95% CI: 1.53-7.32, p < 0.003), and improved patient satisfaction. No significant differences were found in symptom resolution and recurrence. T4 TS appears to be more useful than T3 or T2 TS for PH.

Video-Assisted Thoracoscopic Sympathectomy for Palmar Hyperhidrosis: A Meta-Analysis of Randomized Controlled Trials

OBJECTIVES

Video-assisted thoracoscopic sympathectomy (VTS) is effective in treating palmar hyperhidrosis (PH). However, it is no consensus over which segment should undergo VTS to maximize efficacy and minimize the complications of compensatory hyperhidrosis (CH). This study was designed to compare the efficiency and side effects of VTS of different segments in the treatment of PH.

METHODS

A comprehensive search of PubMed, Ovid MEDLINE, EMBASE, Web of Science, ScienceDirect, the Cochrane Library, Scopus and Google Scholar was performed to identify studies comparing VTS of different segments for treatment of PH. The data was analyzed by Revman 5.3 software and SPSS 18.0.

RESULTS

A total of eight randomized controlled trials (RCTs) involving 1200 patients were included. Meta-analysis showed that single segment/low segments VTS could reduce the risk of moderate/severe CH compared with multiple segments/high segments. The risk of total CH had a similar trend. In the subgroup analysis of single segment VTS, no significant differences were found between T2/T3 VTS and other segments in postoperative CH and degree of CH. T4 VTS showed better efficacy in limiting CH compared with other segments.

CONCLUSIONS

T4 appears to be the best segment for the surgical treatment of PH. Our findings require further validation in more high-quality, large-scale randomized controlled trials.

Single-Port Microthoracoscopic Sympathicotomy for the Treatment of Primary Palmar Hyperhidrosis: an Analysis of 56 Consecutive Cases

The objective of this study is to investigate the feasibility and safety of single-port microthoracoscopic thoracic sympathicotomy for the treatment of palmar hyperhidrosis. Between January 2008 and March 2013, 56 patients (36 male, 20 female; mean age 25.6 years, age range 16-39 years) underwent single-port microthoracoscopic thoracic sympathicotomy for palmar hyperhidrosis. Nineteen patients (33.9 %) had moderate palmar hyperhidrosis that could thoroughly wet a handkerchief, and 37 (66.1 %) had severe palmar hyperhidrosis with sweat dripping from the palm. Eight patients (14.3 %) had a positive family history, 34 (60.7 %) had plantar hyperhidrosis, 22 (39.3 %) had axillary hyperhidrosis, and 20 (35.7 %) had both plantar and axillary hyperhidrosis. In addition, 21 patients (37.5 %) had palmar pompholyx, five (8.9 %) had keratolysis exfoliativa, 10 (17.9 %) had chilblains, and nine (16.1 %) had palmar rhagades. A single 10-mm skin incision was made in the third intercostal space at the anterior axillary line, posterior to the pectoralis muscle. A 5-mm microthoracoscope and a 3-mm microelectrocautery hook were inserted through a single port into the thoracic cavity. The third and fourth ribs were identified, and the sympathetic chain was cut using the microelectrocautery hook. The bypassing nerve fibers, such as the Kuntz nerve fiber bundle, were ablated for 2-3 cm along the surface of the rib. The palmar temperature was recorded before and after sympathicotomy. All 56 procedures were completed using single-port microthoracoscopy. No postoperative complications such as hemorrhage, wound infection, hemopneumothorax, bradycardia, or Horner's syndrome were observed. Bilateral procedures were completed in 20-56 min (mean 30 min). The palmar temperature increased by 2.2 ± 0.3 °C after surgery. The postoperative hospital stay was 1-4 days (mean 2.5 days). Mild compensatory sweating of the back and thigh occurred in five patients (8.9 %) at 2-3 days after surgery and disappeared at 7-15 days. The patients were followed up for 28.5 months (range 1-62 months). Hyperhidrosis resolved in both hands after surgery, and the previously wet, cold hands became dry and warm. The efficacy rate was 100 %. Plantar hyperhidrosis was also significantly reduced in 33 of the 34 patients with this condition (remission rate 97.1 %), and axillary hyperhidrosis was significantly reduced in 19 of 22 patients (remission rate 86.4 %). Eighteen of the 20 patients (90.0 %) with both plantar and axillary hyperhidrosis experienced significant alleviation of their symptoms. Single-port microthoracoscopic thoracic sympathicotomy is a safe, convenient, and effective method of treating palmar hyperhidrosis. This procedure can accurately locate the sympathetic chain with a small incision, minimal invasiveness, and good cosmetic results. The procedure is suitable for extensive clinical use.

The Society of Thoracic Surgeons expert consensus for the surgical treatment of hyperhidrosis

Significant controversies surround the optimal treatment of primary hyperhidrosis of the hands, axillae, feet, and face. The world's literature on hyperhidrosis from 1991 to 2009 was obtained through PubMed. There were 1,097 published articles, of which 102 were clinical trials. Twelve were randomized clinical trials and 90 were nonrandomized comparative studies. After review and discussion by task force members of The Society of Thoracic Surgeons' General Thoracic Workforce, expert consensus was reached from which specific treatment strategies are suggested. These studies suggest that primary hyperhidrosis of the extremities, axillae or face is best treated by endoscopic thoracic sympathectomy (ETS). Interruption of the sympathetic chain can be achieved either by electrocautery or clipping. An international nomenclature should be adopted that refers to the rib levels (R) instead of the vertebral level at which the nerve is interrupted, and how the chain is interrupted, along with systematic pre and postoperative assessments of sweating pattern, intensity and quality-of-life. The recent body of literature suggests that the highest success rates occur when interruption is performed at the top of R3 or the top of R4 for palmar-only hyperhidrosis. R4 may offer a lower incidence of compensatory hyperhidrosis but moister hands. For palmar and axillary, palmar, axillary and pedal and for axillary-only hyperhidrosis interruptions at R4 and R5 are recommended. The top of R3 is best for craniofacial hyperhidrosis.

The effect of thoracoscopic sympathicotomy at the fourth rib (r4) for the treatment of palmar and axillary hyperhidrosis

Background

Video-assisted thoracic sympathicotomy plays an important for the treatment of essential hyperhidrosis. Patients are usually satisfied with the surgical outcome at the early post-operative period, but suffer recurrence and compensatory sweating in the late post-operative period. There are many sympathicotomy methods to minimize recurrence and compensatory sweating. We compared the outcome of sympathicotomy methods above the third rib (R3) and the fourth rib (R4) with regards to symptoms, satisfaction, recurrence, and compensatory palmar and axillary hyperhydrosis.

Materials and Methods

From January 1999 to April 2009, 39 cases of thoracoscopic sympathicotomy at the third rib (R3), and 94 cases of thoracoscopic sympathicotomy at the fourth rib (R4) for palmar and axillary hyperhidrosis were compared for early and late post-operative satisfaction, compensatory sweating and recurrence.

Results

There was no sex or age difference between groups. Early satisfaction was 94.9% and 98.9% in the R3 group and R4 group, respectively. There was no difference in early satisfaction (94.9% in R3 and 98.9% in R4), late satisfaction (84.6% in R3 and 89.4% in R4), or recurrence (17.9% in R3 and 17.0% in R4) between groups. There was significant difference in compensatory sweating (71.8% in R3 and 33% in R4, p=0.002).

Conclusion

R4 sympathicotomy demonstrated superior efficacy in the treatment of compensatory sweating compared to R3 in palmar and/or axillary hyperhidrosis.

Anatomical variations of the upper thoracic sympathetic chain

The aim is to clearly delineate the upper thoracic sympathetic chains and neural connections between the chains and ventral rami of the thoracic nerves, and to provide an anatomical foundation for successful upper thoracic sympathicotomy for treating upper essential hyperhidrosis. The upper thoracic sympathetic chains, upper five intercostal nerves, and neural connections between them in 50 halves of 25 adult cadavers have been dissected, measured, and mapped. The stellate ganglion had an incidence of 80%. The second to the fourth thoracic sympathetic ganglia were commonly located in the corresponding intercostal spaces with the presence of 92%, 68%, and 50%, respectively. The incidence of the first and second intercostal rami was 40% and 6%, and that of the ascending or descending rami from the second, third and fourth ganglia was 54%, 24%, and 14%, respectively. Additional rami communicantes joined the ventral ramus of the 1st thoracic nerve proximal to the point where the latter gave a branch to the brachial plexus. The farthest horizontal distance from the sympathetic chain to the junction between the additional rami communicantes and the second to the fourth intercostal nerves was 29.1 mm. Only 16% of cadavers had similar anatomy bilaterally. Anatomical variations of the upper thoracic sympathetic trunk in relation to intercostal nerves, which may be one of the causes resulting in surgical failures and recurrences, were striking. Attention should be given to such anatomical variations when planning thoracic sympathicotomy.

Influence of T3 or T4 sympathicotomy for palmar hyperhidrosis

BACKGROUND

This retrospective study aimed to compare the efficacy of video-assisted thoracoscopic sympathicotomy at the T3 or T4 level in the treatment of palmar hyperhidrosis.

METHODS

Patients were operated on for palmar hyperhidrosis from April 2004 to December 2007, and classified as the T3 (n = 56) or T4 (n = 63) sympathicotomy group.

RESULTS

The rate of dryness and compensatory hyperhidrosis (CH) was significantly lower in the T4 sympathicotomy group than the T3 group (P < .01). Satisfaction rate, recurrence, and improvement of plantar sweating were of no statistical significance in either group.

CONCLUSIONS

Although both sympathicotomies were effective, safe, and minimally invasive methods for the treatment of palmar hyperhidrosis, T4 appeared to be a more optimal technique with less CH.

IMPACT OF COMPENSATORY HYPERHIDROSIS ON PATIENT SATISFACTION AFTER ENDOSCOPIC THORACIC SYMPATHECTOMY

OBJECTIVE

Endoscopic thoracic sympathectomy (ETS) remains the definitive treatment for primary focal hyperhidrosis. Compensatory hyperhidrosis (CH) is a significant drawback of ETS. We sought to identify the predictors for the development of severe CH after ETS, its anatomic locations, and its frequency of occurrence, and we analyzed the impact of CH on patient satisfaction with ETS.

METHODS

Bilateral ETS for primary focal hyperhidrosis was performed in 220 patients, and a retrospective chart review was conducted. Follow-up evaluation was conducted using a telephone questionnaire, and 73% of all patients were contacted. Patients' responses regarding CH and their level of satisfaction after ETS were analyzed. Statistical analysis was performed using SPSS software (Version 14.0; SPSS, Inc., Chicago, IL). A P value of &lt;0.05 was considered statistically significant.

RESULTS

Some degree of CH developed in 94% of patients. The number of levels treated was not related to the occurrence of severe CH. Isolated T3 ganglionectomy led to a significantly lower incidence of severe CH, when compared with all other levels (P &lt; 0.03). Ninety percent of patients were satisfied with the procedure. The development of severe CH, as opposed to mild or moderate CH, significantly correlated with a lower satisfaction rate (P = 0.003).

CONCLUSION

CH is common after ETS procedures, and the occurrence of severe, but not mild or moderate, CH is a major source of dissatisfaction after ETS. The overall occurrence of severe CH is reduced after T3 ganglionectomy as opposed to ganglionectomies performed at all other levels. The level of satisfaction with ETS is high.