Comparison of Icg's Route of Administration During Laparoscopic Cholecystectomy

March 9, 2022 updated by: Savvas Simeonidis, Aristotle University Of Thessaloniki

Comparison of Administration of Indocyanine Green (ICG) for Image-Guided Laparoscopic Cholocystectomy- A Randomized, Controlled, Prospective Trial

The aim of the trial is to compare the routes of administration of indocyanine green (ICG) during laparoscopic cholocystectomy.

Study Overview

Detailed Description

Laparoscopic cholecystectomy is now the method of choice for the treatment of symptomatic and complicated gallstones.

There are two major problems that can occur during and after a laparoscopic cholecystectomy. These are the remaining stones in the bile duct and the iatrogenic injuries of the bile ducts. Iatrogenic bile duct injuries are the most difficult complication of cholecystectomy and are a clinical entity that needs multifactorial treatment as it significantly increases morbidity, mortality and overall cost. Intraoperative cholangiography is used to prevent these complications.

Intraoperative cholangiography is the traditional method of identifying bile duct anatomy during laparoscopic cholecystectomy. This method has the disadvantages that both the patient and the staff are exposed to radiation, while in order to perform it, catheterization of the cystic duct must be performed, which requires surgical procedures that increase the time of the operation, while in some cases it is not technically easy. Finally, with the intraoperative cholangiography, the injuries of the bile ducts are detected, after they have taken place, therefore it helps in their timely diagnosis but does not limit the frequency of their occurrence.

Indocyanine green is a sterile, anionic, water-soluble but relatively hydrophobic tricarbocyanine molecule with a molecular weight of 751.4. It was developed in 1955 at Kodak Laboratories and in 1959 was approved for clinical use by the FDA. It has the property of fluorescing, after its administration, with a maximum absorption at 800 nm after exposure to infrared lighting. Its use offers an image of high clarity and sensitivity, target imaging, with parallel low acoustic emission. Indocyanine green has the following properties and advantages, which make it an important tool in the applications of medical sciences and studies.

Following intravenous administration, it binds to plasma lipoproteins with minimal escape into the interstitial space. Extremely important for its clinical use is the complete excretion through the bile, as well as the non-production of metabolic products. It has low toxicity in the absence of ionization, which in combination with the short half-life of the substance, provides safety for the patient in its use and application in medical and biomedical sciences. It has low costs that in combination with its ease of use facilitates its application. No expensive equipment or large learning curve required. Also the possibility of recurrence with re-administration intraoperatively can offer a number of applications in laparoscopic surgery. It has a low rate of side effects and interactions with other drugs and preparations, a major allergic reaction has been reported in the literature. The first clinical applications of indocyanine green were to assess cardiac function, liver function in cirrhotic patients before hepatectomy, and to examine the retinal vessels.

Its use in laparoscopic cholecystectomy, as already mentioned, is based on its ability to fluoresce when exposed to infrared light and in combination with the fact that when administered intravenously it is concentrated and excreted from the bile offers the possibility of intraoperative, fluorescent cholangiography that aims to identify the elements of the Callot triangle.

This study aims to demonstrate that endocyanin green cholangiography is equivalent to or better than conventional cholangiography for the diagnosis of cholelithiasis and biliary injuries. It is therefore an important clinical application that will probably facilitate surgeons both in the prevention of biliary injuries and in the intraoperative diagnosis of cholelithiasis.

Patients who will undergo laparoscopic cholecystectomy will be randomly divided into 3 (three) groups. The processing of the results will be done in the appropriate way and method. A total of 240 patients will be randomized into three groups of 80. In the first group (A) classical cholangiography will be performed. In group (B) will be performed intravenous fluorescent cholangiography with indocyanine green 6 (six) hours before the start of surgery. In the third group (C) will be performed intraoperative cholangiography with direct administration of indocyanine green to the gallbladder.

Study Type

Interventional

Enrollment (Anticipated)

240

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Thessaloniki, Greece, 57010
        • Recruiting
        • General Hospital of Thessaloniki "G. Papanikolaou"
        • Contact:
          • Savvas Simeonidis, MD, PhD(c)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 100 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. age older than 18 years old
  2. laparoscopic cholecystectomy
  3. elective surgery

Exclusion Criteria:

  1. younger than 18 years old
  2. no consent to participate to the study
  3. history of allergic reaction to iodine products
  4. urgent or emergent cholecystectomy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Group A (standard cholangiography during surgery)
All patients will undergo laparoscopic cholecystectomy. In this group standard cholangiography will be performed during surgery. Standard cholangiography will be performed with selective catheterization of the cystic duct and infusion of a radiolucent substance (non-ionic low osmotic iodine). The category includes drugs such as iohexol, iopamidol, iopromide, ioversol, iobitriol, iomeprol and iodixanol. In our study we will use Xenetix (iobitriol) and perform cholangiography with C-ARM recording.
Patients will undergo laparoscopic cholecystectomy after they are randomly divided into 3 (three) groups. A total of 240 patients will be randomized into three groups of 80. In the first group (A) standard cholangiography will be performed. In group (B) intravenous fluorescent cholangiography with indocyanine green will be performed during surgery. ICG at a dose of 0.3 mg / mL / Kg 6 (six) hours prior to surgery will be administered. In the third group (C), intraoperative cholangiography will be performed with direct administration of indocyanine green at a dose of 0.03 mg / ml / Kg to the gallbladder.
Other Names:
  • laparoscopic cholecystectomy
  • intra-operative cholangiography
  • c-arm recording
  • iodine solution administration
Active Comparator: Group B (cholangiography with iv administration of icg prior to surgery)
All patients will undergo laparoscopic cholecystectomy. In this group intravenous fluorescent cholangiography with indocyanine green will be given at a dose of 0.3 mg / mL / Kg 6 (six) hours before the start of surgery.The bile duct system will be recorded with a special camera (Karl Storz NIR / ICG).
Patients will undergo laparoscopic cholecystectomy after they are randomly divided into 3 (three) groups. A total of 240 patients will be randomized into three groups of 80. In the first group (A) standard cholangiography will be performed. In group (B) intravenous fluorescent cholangiography with indocyanine green will be performed during surgery. ICG at a dose of 0.3 mg / mL / Kg 6 (six) hours prior to surgery will be administered. In the third group (C), intraoperative cholangiography will be performed with direct administration of indocyanine green at a dose of 0.03 mg / ml / Kg to the gallbladder.
Other Names:
  • laparoscopic cholecystectomy
  • intra-operative cholangiography
  • c-arm recording
  • iodine solution administration
Active Comparator: Group C (cholangiography with direct administration of icg to the bile duct system during surgery)
All patients will undergo laparoscopic cholecystectomy. In the third group intraoperative cholangiography will be performed with direct administration of indocyanine green at a dose of 0.03 mg / ml / Kg to the bile duct cyst.
Patients will undergo laparoscopic cholecystectomy after they are randomly divided into 3 (three) groups. A total of 240 patients will be randomized into three groups of 80. In the first group (A) standard cholangiography will be performed. In group (B) intravenous fluorescent cholangiography with indocyanine green will be performed during surgery. ICG at a dose of 0.3 mg / mL / Kg 6 (six) hours prior to surgery will be administered. In the third group (C), intraoperative cholangiography will be performed with direct administration of indocyanine green at a dose of 0.03 mg / ml / Kg to the gallbladder.
Other Names:
  • laparoscopic cholecystectomy
  • intra-operative cholangiography
  • c-arm recording
  • iodine solution administration

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
successful imaging of biliary system
Time Frame: intra-operatively
The anatomy of the extrahepatic bile ducts will be orally determined by the surgeon and the cases in which the oral description will coincide with the findings of cholangiography or not and where there were differences will be recorded.
intra-operatively
operation duration
Time Frame: intra-operatively
minutes
intra-operatively
intra-operative complications (bleeding, bile duct leakage, bile duct injury)
Time Frame: intra-operatively
presence or absence
intra-operatively
applicability of the intra-operatively cholangiography
Time Frame: intra-operatively
yes or no
intra-operatively
presence of bile duct stones (choledocholithiasis)
Time Frame: intra-operatively
yes or no
intra-operatively

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
gender
Time Frame: pre-operatively
male or female
pre-operatively
ASA score
Time Frame: pre-operatively
number
pre-operatively
age
Time Frame: pre-operatively
years
pre-operatively
body mass index
Time Frame: pre-operatively
kg/m2
pre-operatively
indication for laparoscopic cholecystectomy
Time Frame: pre-operatively
yes or no
pre-operatively
SGOT
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
g/dL
24 hours prior to surgery and 24 hours after the surgery
SGPT
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
g/dL
24 hours prior to surgery and 24 hours after the surgery
ALP
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
g/dL
24 hours prior to surgery and 24 hours after the surgery
γ-GT
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
g/dL
24 hours prior to surgery and 24 hours after the surgery
total bilirubin
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
mg/dL
24 hours prior to surgery and 24 hours after the surgery
indirect bilirubin
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
mg/dL
24 hours prior to surgery and 24 hours after the surgery
direct bilirubin
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
mg/dL
24 hours prior to surgery and 24 hours after the surgery
PT
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
seconds
24 hours prior to surgery and 24 hours after the surgery
INR
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
number
24 hours prior to surgery and 24 hours after the surgery
aPTT
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
seconds
24 hours prior to surgery and 24 hours after the surgery
urea
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
mg/dL
24 hours prior to surgery and 24 hours after the surgery
creatinine
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
mg/dL
24 hours prior to surgery and 24 hours after the surgery
CRP
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
mg/L
24 hours prior to surgery and 24 hours after the surgery
WBC
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
mm3/L
24 hours prior to surgery and 24 hours after the surgery
ESR
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
mm
24 hours prior to surgery and 24 hours after the surgery
procalcitonin
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
mg/dL
24 hours prior to surgery and 24 hours after the surgery
TNF-a
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
pg/ml
24 hours prior to surgery and 24 hours after the surgery
IL-6
Time Frame: 24 hours prior to surgery and 24 hours after the surgery
pg/ml
24 hours prior to surgery and 24 hours after the surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Savvas Simeonidis, MD, PhD(c), General Hospital of Thessaloniki "G. Papanikolaou", Aristotle University of Thessaloniki

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 3, 2022

Primary Completion (Anticipated)

June 1, 2022

Study Completion (Anticipated)

January 1, 2023

Study Registration Dates

First Submitted

May 10, 2021

First Submitted That Met QC Criteria

May 26, 2021

First Posted (Actual)

June 1, 2021

Study Record Updates

Last Update Posted (Actual)

March 10, 2022

Last Update Submitted That Met QC Criteria

March 9, 2022

Last Verified

March 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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