Minilaparoscopic Versus Conventional Laparoscopic Cholecystectomy

This study has been completed.
Information provided by (Responsible Party):
Dr. Liane S. Feldman, McGill University Health Center Identifier:
First received: July 5, 2011
Last updated: September 26, 2015
Last verified: September 2015

Laparoscopic cholecystectomy is one of the most commonly performed operations in general surgery and is considered the standard of care for cholecystectomy for benign biliary disease. The laparoscopic approach to cholecystectomy, when compared to open surgery, is associated with less postoperative pain, quicker recovery time and an improved cosmetic result.

Most commonly, laparoscopic cholecystectomy is performed using a 10-12mm port in the umbilicus with 3 additional ports consisting of either three 5mm ports, or a combination of two 5mm ports and one 10mm port. A new technique called minilaparoscopic (also referred to as needlescopic) surgery has recently emerged. Minilaparoscopic surgery replaces 5mm trocars with smaller 3mm trocars. Surgery using these smaller trocars is hypothesized to further reduce postoperative pain and recovery time as well as improve cosmetic results following laparoscopic surgery. Our goal is to compare these outcomes in a randomized trial comparing conventional to minilaparoscopic cholecystectomy.

Condition Intervention Phase
Procedure: Laparoscopic cholecystectomy
Procedure: Minilaparoscopic cholecystectomy
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Minilaparoscopic Versus Conventional Laparoscopic Cholecystectomy: A Randomized Trial

Resource links provided by NLM:

Further study details as provided by McGill University Health Center:

Primary Outcome Measures:
  • Post-operative pain [ Time Frame: First seven days post-op, 3 weeks post-op ] [ Designated as safety issue: No ]
    Post-operative pain will be assessed during the first week post-operatively using a diary that will be provided to patients. In this diary, patients will score their pain daily using a visual analog scale (0=no pain and 10=severe pain) and record use of pain medications for the first seven days post-operatively. Patients will again be asked to score their pain using the visual analog scale at the regularly scheduled follow-up visit three weeks post-op.

  • Time to recovery [ Time Frame: 3 weeks post-operatively ] [ Designated as safety issue: No ]
    Time to recovery (return to baseline level of activity) will be evaluated by comparing baseline physical activity scores to physical activity scores determined at the follow-up visit three weeks post-op. Physical activity scores will be obtained using the validated CHAMPS questionnaire (2)

  • Cosmetic result [ Time Frame: 3 months post-operatively ] [ Designated as safety issue: No ]
    Cosmetic result will be evaluated using a scar assessment questionnaire (3), that will be administered by the study coordinator at the routine post-op visit as well as at three months by telephone

Secondary Outcome Measures:
  • Operative complications [ Time Frame: First 3 months post-op ] [ Designated as safety issue: Yes ]
    Intra-operative, in-hospital (if applicable) and postoperative complications will be recorded and graded according to the Clavien Classification. Superficial and deep incisional surgical site infections will be defined according to the CDC definition.

  • Operative technique [ Time Frame: Recorded at visit 3 weeks post-op ] [ Designated as safety issue: Yes ]
    Conversion to conventional laparoscopic technique or open procedure will be recorded at the time of operation.

  • Length of operation [ Time Frame: Recorded at visit 3 weeks post-op ] [ Designated as safety issue: Yes ]
    The time necessary to complete the intervention will be recorded

Enrollment: 115
Study Start Date: February 2012
Study Completion Date: September 2015
Primary Completion Date: September 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Laparoscopic cholecystectomy
Patients in this arm will undergo conventional laparoscopic cholecystectomy
Procedure: Laparoscopic cholecystectomy
Laparoscopic cholecystectomy
Experimental: Minilaparoscopic cholecystectomy
Patients in this arm will undergo laparoscopic cholecystectomy using minilaparoscopic instruments
Procedure: Minilaparoscopic cholecystectomy
Laparoscopic cholecystectomy performed using minilaparoscopic instruments
Other Name: Needlescopic surgery

  Show Detailed Description


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • minimum 18 years of age
  • referred for elective cholecystectomy for benign biliary stone disease

Exclusion Criteria:

  • previous upper gastrointestinal surgery
  • acute cholecystitis (past or present)
  • American Society of Anesthesiologists (ASA) class greater than or equal to 4
  • pregnancy
  • morbid obesity (BMI > 35 kg/m2)
  • inability to comprehend questionnaires in either English or French
  • psychiatric conditions that preclude cooperation and/or comprehension of questionnaires
  Contacts and Locations
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Please refer to this study by its identifier: NCT01397565

Canada, Quebec
Montreal General Hospital
Montreal, Quebec, Canada, H3G 1A4
Sponsors and Collaborators
McGill University Health Center
Principal Investigator: Liane Feldman, MD McGill University Health Center
  More Information

Responsible Party: Dr. Liane S. Feldman, MD, McGill University Health Center Identifier: NCT01397565     History of Changes
Other Study ID Numbers: 11-053-SDR
Study First Received: July 5, 2011
Last Updated: September 26, 2015
Health Authority: Canada: Ethics Review Committee

Keywords provided by McGill University Health Center:
Minilaparoscopic surgery
Post-operative pain
Recovery time

Additional relevant MeSH terms:
Biliary Tract Diseases
Digestive System Diseases
Gallbladder Diseases
Pathological Conditions, Anatomical processed this record on October 02, 2015