Evidence map›Paper›PMID 34677148›Full record

ArticleAsian journal of andrology

Application of the Mathieu combined tunnel technique for repairing glans dehiscence after failed hypospadias repair.

Qi-Gen Xie, Kai Xia, Xiang-Ping Li, Peng Luo, Zuo-Qing Li, Cheng Su, Chun-Hua Deng

Open access · goldAbstract read
In one paragraph

Article in Asian journal of andrology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 26% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. 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

7 authors at 2 institutions in 1 country.

Qi-Gen XieDepartment of Pediatric Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
Kai XiaDepartment of Andrology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
Xiang-Ping LiDepartment of Andrology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
Peng LuoDepartment of Andrology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
Zuo-Qing LiDepartment of Pediatric Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
Cheng SuDepartment of Pediatric Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
Chun-Hua DengDepartment of Andrology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
Sun Yat-sen University · CNThe First Affiliated Hospital, Sun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Repairing glans dehiscence after failed hypospadias repair is challenging for pediatric surgeons. Here, we introduced and evaluated a newly modified Mathieu technique, Mathieu combined tunnel (MCT), which involves multiple custom-designed flaps for the shortage of flap source material after repeated operations; we also constructed a tunnel to avoid the glans incision that may carry new risks of dehiscence. This retrospective study included 26 patients who were consecutively admitted to the First Affiliated Hospital of Sun Yat-Sen University (Guangzhou, China) for glans dehiscence repair after failed hypospadias repair from October 2014 to October 2020; sixteen patients underwent surgery using the MCT (MCT group) and ten patients underwent surgery using the tubularized incised plate (TIP) technique (TIP group). The operative time, blood loss, postoperative complications, normal urethral meatus rate, success rate, and Hypospadias Objective Penile Evaluation (HOPE) score were compared between the two groups. The MCT group achieved an overall satisfactory penile appearance and voiding function, with a higher rate of normal urethral meatus (15/16, 93.8%) and a lower rate of glans dehiscence (1/16, 6.2%), compared with the TIP group (70.0% and 30.0%, respectively). However, these differences were not statistically significant, possibly because of the limited number of patients (all P > 0.05). Mean postoperative HOPE scores were similar in the MCT group (mean ± standard deviation: 8.83 ± 0. 89) and TIP group (8.94 ± 0.57) (P > 0.05). No significant differences were found between the two groups in terms of blood loss and success rate, nor in the rates of various complications (e.g., fistula, urethral stricture, and glans dehiscence). In conclusion, the MCT technique appears to be feasible and reliable for repairing glans dehiscence after failed hypospadias repair.

Indexed as

HypospadiasChildFemaleHumansInfantMaleRetrospective StudiesTreatment OutcomeUrethraUrologic Surgical Procedures, Malefailed hypospadiasglans dehiscenceMathieutubularized incised plate (TIP)tunnel

Identifiers

PMID34677148
PMCPMC9226693
OpenAlexW3207501413

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.