Does ICG Fluorescence Cholangiography Identify Critical View of Safety Earlier in Laparoscopic Cholecystectomy

Cholelithiasis Clinical Trial

Official title:

Does ICG Fluorescence Cholangiography Identify Critical View of Safety Earlier in Laparoscopic Cholecystectomy: Results From a Randomized Controlled Study in University Malaya Medical Centre

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04228835
• Other study ID #: 1001
• Status: Completed
• Phase: N/A
• Start date: March 1, 2017
• Est. completion date: July 31, 2019

Study information

• Verified date: January 2020
• Source: University of Malaya
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Achievement of critical view of safety (CVS) is recommended to reduce risk of hilar injury in laparoscopic cholecystectomy. Indocyanine green (ICG) fluorescence cholangiography, a novel technique of real time biliary visualization, is postulated to assist dissection during laparoscopic cholecystectomy (LC). However, its use in providing a faster and safer LC has yet to be established. The main objective of this study is to evaluate whether the use of ICG enhanced fluorescence cholangiography will help in earlier identification critical view of safety during LC.

Description:

Indocyanine green (ICG) is excreted exclusively in the biliary system and emits fluorescence light when viewed using near infrared imaging. This enables extrahepatic biliary tree anatomy to be delineated during laparoscopic cholecystectomy.

Indocyanine green fluorescence cholangiography also enables earlier detection of cystic duct and common bile duct during laparoscopic cholecystectomy. This is reported in two studies which showed that cystic duct can be identified 11 minutes and 8.6 minutes earlier and common bile duct 10 and 11 minutes earlier than white light imaging.

To date, there is no data published on the use of fluorescent cholangiography in reducing operative time of identification of critical view of safety during laparoscopic cholecystectomy, which is an integral part of the surgery. Theoretically achievement of critical view of safety maybe facilitated by fluorescent cholangiography as this technique facilitates identification of biliary structures.

The primary objective of this study is to evaluate whether an earlier identification of CVS can be obtained by using ICG fluorescence cholangiography as an adjunct to conventional laparoscopic cholecystectomy versus conventional laparoscopic cholecystectomy. Secondary outcomes assessed are the presence of minor or major complications between this two groups.

Patients are randomly assigned into two arms; ICG fluorescence cholangiography assisted laparoscopic cholecystectomy (ICGFC- LC) and conventional laparoscopic cholecystectomy (LC), using a computer-generated block randomization. Patients in the ICGFC- LC group received intravenous bolus of 2.5mg of ICG before the induction of anaesthesia. All the surgeries are performed using standard four ports technique. Near infrared light camera by Karl Storz Endoscopy is used intermittently during dissection for the ICGFC-LC group.

Time to identification of CVS is defined by time of gallbladder retraction to time of establishment of critical view of safety. Critical view of safety is achieved when all the three criteria set by Strasberg is met. Mean time to identification of CVS in the two groups of patients were then compared. All patients are followed up for one month to identify any post-operative complications.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 72
• Est. completion date: July 31, 2019
• Est. primary completion date: July 31, 2019
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Symptomatic cholelithiasis for elective cholecystectomy

• American Society of Anaesthesiologist (ASA) classification of physical status I or II

• Normal kidney function

• Normal liver function

Exclusion Criteria:

• Liver cirrhosis

• Hepatits B or C

• Allergies to iodine or seafood

Related Conditions & MeSH terms

• Cholecystolithiasis
• Cholelithiasis
• Gallstones

Intervention

Diagnostic Test:
• Fluorescence Cholangiography
Administration of ICG for fluorescence cholangiography

Locations

Country	Name	City	State
Malaysia	University Malaya Medical Centre	Kuala Lumpur	Wilayah Persekutuan Kuala Lumpur

Sponsors (2)

Lead Sponsor	Collaborator
University of Malaya	Ummi Surgical Sdn Bhd

Country where clinical trial is conducted

Malaysia, 

References & Publications (2)

Schols RM, Bouvy ND, van Dam RM, Masclee AA, Dejong CH, Stassen LP. Combined vascular and biliary fluorescence imaging in laparoscopic cholecystectomy. Surg Endosc. 2013 Dec;27(12):4511-7. doi: 10.1007/s00464-013-3100-7. Epub 2013 Jul 23. — View Citation

van Dam DA, Ankersmit M, van de Ven P, van Rijswijk AS, Tuynman JB, Meijerink WJ. Comparing Near-Infrared Imaging with Indocyanine Green to Conventional Imaging During Laparoscopic Cholecystectomy: A Prospective Crossover Study. J Laparoendosc Adv Surg Tech A. 2015 Jun;25(6):486-92. doi: 10.1089/lap.2014.0248. Epub 2015 May 14. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Time to identification of critical view of safety	Compare time to identification of critical view of safety during laparoscopic cholecystectomy which is defined as time of gallbladder retraction until establishment of critical view of safety.	Time of surgery
Secondary	Complications	Compare rate of complications of laparoscopic cholecystectomy such as bile duct injury, major haemorrhage, intraabdominal collections and surgical site infection	up to 30 days post operative