Evidence map›Paper›PMID 26150222›Full record

Trial reportSurgical endoscopy2016

Long-term results of a randomized controlled trial of T2 versus T2-T3 ablation in endoscopic thoracic sympathectomy for palmar hyperhidrosis.

Wilson Ong, Alvin Lee, Wee Boon Tan, Davide Lomanto

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Surgical endoscopy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Influence of sex on the outcomes of uniportal video‑assisted thoracoscopic sympathicotomy for primary palmar hyperhidrosis.Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Single stage bilateral uniportal videothoracoscopic sympathicotomy for hyperhidrosis: can it be managed as an outpatient procedure?Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques · 2016
    Article
  7. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Wilson OngYong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore. prooyf@hotmail.com.
Alvin LeeYong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
Wee Boon TanDepartment of Surgery, Minimally Invasive Surgical Centre, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
Davide LomantoDepartment of Surgery, Minimally Invasive Surgical Centre, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore. surdl@nus.edu.sg.
National University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite good short-term results and patient satisfaction with endoscopic thoracic sympathectomy (ETS), there has been much debate on the level of sympathectomy for treatment of palmar hyperhidrosis (PH) in terms of long-term clinical outcomes.

objectiveThe aim of the study was to analyze the long-term recurrence and compensatory hyperhidrosis (CH) rates of ETS, comparing single-level T2 against multi-level T2-T3 ablation in single patients.

methodsPatients who had undergone treatment for PH with unilateral T2 and contralateral T2-T3 ablation in ETS were retrospectively reviewed. They were subjected to telephone interview using standardized set of interview script and questionnaire with a scoring system similar to hyperhidrosis disease severity scale. All patients were evaluated for comparison of symptom resolution, site and severity of CH, and satisfaction rates. To compare between T2 and T2-T3, the level of sympathectomy on one side is matched to the ipsilateral recurrence of PH and CH occurrence.

resultsTwenty-two patients with a mean age of 36.5 years could be reached. The mean follow-up was 8 years (range 38-153 months). The global recurrence rate for PH is 18%. CH was observed in 20 (91%) patients, and trunk compensation was the most common (18/22-82%), followed by lower limb (14/22-64%) and axilla (10/22-45%). Overall, 72.8% (16) of the patients were satisfied with the operation. Among the six patients who were not satisfied, two patients reported recurrence of symptoms, while four patients experienced some form of compensation. There was no absolute difference in the severity of sweating bilaterally for patients who reported recurrence of PH. The site and severity of CH were also bilaterally symmetrical for all patients.

conclusionThere was no difference in recurrence rates and CH between single-level (T2) and multi-level (T2-T3) ETSs in the long term.

Indexed as

EndoscopyAblation TechniquesAdolescentAdultFemaleFollow-Up StudiesHumansHyperhidrosisMaleMiddle AgedPatient SatisfactionRecurrenceRetrospective StudiesSeverity of Illness IndexSurveys and QuestionnairesSympathectomyCompensatory sweatingEndoscopic thoracic sympathectomyLong-term resultsRandomized controlled trial

Identifiers

PMID26150222
OpenAlexW851141425

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.