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Clipless Versus Conventional Laparoscopic Cholecystectomy Using Harmonic Scalpel

Clipless Versus Conventional Laparoscopic Cholecystectomy Using Harmonic Scalpel: A Randomized Controlled Trial From a Tertiary Care Centre in Pakistan

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07473388
Enrollment
158
Registered
2026-03-16
Start date
2020-02-01
Completion date
2025-12-01
Last updated
2026-03-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cholecystectomy, Laparoscopic, Cholecystitis, Gall Stones (& [Calculus - Gall Bladder])

Keywords

laparoscopic cholecystectomy, clipless cholecystectomy, harmonic scalpel

Brief summary

This randomized controlled trial compares the operative outcomes of clipless laparoscopic cholecystectomy using a harmonic scalpel (HS) versus conventional clip-based laparoscopic cholecystectomy (CLC) in patients with gallstone disease. The primary goals are to determine if the clipless HS technique reduces operative time and intraoperative blood loss. Secondary outcomes include the length of postoperative hospital stay and the rate of port-site infections.

Detailed description

Conventional laparoscopic cholecystectomy (CLC) uses metal clips to control the cystic duct and artery. Potential complications include clip slippage, which can lead to bleeding or bile leak, and clips acting as a nidus for future stone formation. The harmonic scalpel (HS) uses ultrasonic energy to simultaneously cut and coagulate tissue, allowing for dissection and sealing of vessels without clips. This single-center randomized controlled trial, conducted at Services Hospital, Lahore, Pakistan, enrolled 158 adults scheduled for elective laparoscopic cholecystectomy. Participants were randomly assigned to either undergo a clipless cholecystectomy with a harmonic scalpel (Group A) or a conventional clip-based cholecystectomy with monopolar electrocautery (Group B). All procedures were performed by the same experienced surgical team. The study aims to provide evidence on the safety and efficiency of the clipless HS technique in a high-volume public hospital setting.

Interventions

PROCEDUREClipless Laparoscopic Cholecystectomy with Harmonic Scalpel

Patients in this arm undergo a clipless laparoscopic cholecystectomy using a harmonic scalpel. Dissection of Calot's triangle is performed with the harmonic scalpel. The cystic duct and cystic artery are occluded and divided using the harmonic shear without the application of any metal clips. The harmonic scalpel is used on power setting 2 for closure and division of the cystic pedicle. The gallbladder is dissected from the liver bed using the harmonic scalpel on power setting 5 to achieve hemostasis.

Patients in this arm undergo a conventional laparoscopic cholecystectomy. Calot's triangle is dissected using standard instruments and monopolar electrocautery. The cystic duct and cystic artery are individually controlled with metal clips (two clips applied proximally toward the common bile duct / hepatic artery side and one clip distally on the specimen side) and divided with laparoscopic scissors. The gallbladder is dissected from the liver bed using a monopolar hook

Sponsors

Services Hospital, Lahore
Lead SponsorOTHER_GOV
Services Institute of Medical Sciences, Pakistan
CollaboratorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Adults aged 20-70 years. * Diagnosis of gallstone disease confined to the gallbladder. * Scheduled for elective laparoscopic cholecystectomy.

Exclusion criteria

* ASA (American Society of Anesthesiologists) physical status class III or IV. * Renal dysfunction (serum creatinine \> 2.0 mg/dL). * Coagulopathy (PT \>1 s above control, aPTT \>33 s, INR \>1.5). * Pregnancy. * Presence of common bile duct stones. * Previous upper abdominal surgery or laparotomy.

Design outcomes

Primary

MeasureTime frameDescription
Operative Time in minutes120 minutesDefined as the time from skin incision to the completion of skin closure, measured in minutes.
Intraoperative Blood Loss in ml120 minutesDefined as the total volume of blood collected in suction canisters after subtracting the volume of irrigation fluid used, measured in milliliters.

Secondary

MeasureTime frameDescription
Length of Postoperative Hospital Stay in days6 daysDefined as the number of days from operation to discharge when the patient can tolerate oral intake and pain is well-controlled with oral medication.
Port-Site Infection Rate7-10 daysDefined as the presence of fever (\>100°F) with pain and purulent discharge from any port site.

Countries

Pakistan

Contacts

STUDY_DIRECTORAwais Amjad, MBBS, FCPS

Services Institute of Medical Sciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 17, 2026