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CompletedNCT06708390Updated Mar 27, 2025

Single-Incision Laparoscopic Cholecystectomy with Inflexible Laparoscopic Instruments and Laparoscopy: a Single-Center Experience

An observational study in Benign Gallbladder Disease, sponsored by Second Affiliated Hospital, School of Medicine, Zhejiang University. Completed at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-03-27.

Sponsored by Second Affiliated Hospital, School of Medicine, Zhejiang University · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
1,000
Ages
18 Years to 75 Years
Sex
All
01

Study summary

Since being introduced by Mühe in 1985, laparoscopic cholecystectomy (LC) has garnered global acceptance and defined as gold standard treatment for benign gallbladder diseases (BGDs). Minimally invasive surgery technique was applied in a spectrum of surgeries including LC, namely single-incision laparoscopic cholecystectomy (SILC), initially reported by Navarra in 1997. By then this technique developed dramatically in aspects of both operation and instruments. Previous experiences with SILC across various centers have consistently demonstrated its robust safety and feasibility. Numerous clinical trials have highlighted the benefits of SILC over conventional laparoscopic cholecystectomy (CLC), particularly in terms of promoted aesthetic outcomes, reduced postoperative pain, and shorter hospital stays.However, discrepancies in postoperative complications including incisional hernias have sparked debate regarding the merits and drawbacks of SILC. Consequently, further research is urgent with larger cohorts and extended postoperative follow-up periods for a definitive assessment of SILC.

In the present study LC was performed in cases from January 2023 to March 2024, aiming to compare the overall outcomes and complications between CLC and SILC. All surgical instruments and laparoscopy were introduced through a single intraumbilical incision in SILC group, allowing the resultant scar to be discreetly concealed within the reconstructed navel. Furthermore, historical implementations of SILC have predominantly utilized specialized and novel instruments. This reliance on special equipment limited the technique's applicability and benefits in settings with more rudimentary clinical facilities. The authors successfully applied conventional laparoscopic instruments and a 10mm laparoscopy with straight and inflexible properties and simplified the surgical process. Moreover, the single-incision port used were made on site from basic stuffs and materials easily obtained from operation room.

02

Conditions studied

  • Benign Gallbladder Disease

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Keywords

  • single-incision laparoscopic
  • laparoscopic cholecystectomy
  • cholecystolithiasis
03

In context

Cholecystolithiasis

88 studies on the registry are indexed under Cholecystolithiasis; 17 are open to participants now.

This study's enrollment of 1,000 is above the median of 341 across 28 observational studies indexed under Cholecystolithiasis.

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Lead sponsor

Second Affiliated Hospital, School of Medicine, Zhejiang University is the lead sponsor of 1,047 studies on the registry; 502 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

People with benign gallbladder diseases

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Gallbladder stone;
  • Acute cholecystitis;
  • Chronic cholecystitis;
  • Gallbladder adenomyomatosis;
  • Gallbladder polyp.

Exclusion criteria

Exclusion Criteria:

  • Combined with liver cirrhosis (Child grade B and above);
  • Gallbladder gangrene perforation;
  • Changes in surgical plan (conversion to laparotomy,cholangiography, bile duct exploration, bile duct injury repair, abscess clearance, multivisceral resection.);
  • patients and their families do not agree with the treatment lost follow-up.
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
1,000 participants (actual)
Patient registry
No

Groups and cohorts

  • SILC

    single-incision laparoscopic cholecystectomy

  • CLC

    conventional laparoscopic cholecystectomy

06

What researchers measure

Primary outcomes

  1. Postoperative complications

    Postoperative complications were graded using Clavien-Dindo classification system .

    Time frame: Six months postoperatively

Secondary outcomes

  1. Postoperative quality of life

    The quality of life of patients after operation was evaluated according to SF-36 。Scores in 0 to 100, the higher the score, the higher the quality of life.

    Time frame: Six months postoperatively

  2. Scar assessment

    Scar assessment was conducted postoperatively using Vancouver Scar Scale.The highest score was 18 points, and the lowest score was 0 points. The higher the score, the more serious the scar condition, and vice versa.

    Time frame: One month postoperatively

07

Study locations

1 site
  • 2nd Affiliated Hospital, School of Medicine, Zhejiang University, China
    Hangzhou, Zhejiang No.88 Jiefang Road, China
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 27, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06708390
Responsible party
Sponsor
First posted
Nov 27, 2024
Start date
Nov 23, 2024
Primary completion
Feb 17, 2025
Completion
Feb 20, 2025
Last update
Mar 27, 2025

Study contacts

Daren Liu, MD, PhD
study director · Chief Physician

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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