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A Study of Perfusion of Colorectal Anastomosis Using FLuorescence AnGiography (FLAG-trial)

A Study of Perfusion of Colorectal Anastomosis Using FLuorescence AnGiography (FLAG-trial)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03390517
Acronym
FLAG
Enrollment
377
Registered
2018-01-04
Start date
2017-11-09
Completion date
2019-09-22
Last updated
2019-09-25

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

Conditions

Rectal Cancer, Sigmoid Cancer

Keywords

fluorescence angiography, indocyanine green, anastomotic leakage

Brief summary

This is a randomized, controlled, parallel study to determine the difference in post-operative anastomotic leak rate of colorectal anastomosis where colon and rectal tissue perfusion is evaluated using fluorescence angiography with indocyanine green and without this method.

Detailed description

The design involves random allocation of eligible patients to operation with colorectal anastomosis and intraoperative fluorescence angiography with indocyanine green and operation alone. After surgery on 7-8 POD patients are examined to two sides X-Ray proctography performed by introducing 100 ml of water-soluble liquid contrast material through the anus over the anastomotic line by a Foley catheter for diagnosis of anastomotic leakage.

Interventions

DEVICEFluorescence angiography with indocianyne green

The fluorescence angiography was performed after mobilization of the bowel, transection of the rectum, division of the rectal and colon mesentery and central vessels, before specimen extraction or resection and creation of the anastomosis. This site was selected by the surgeon using his or her best judgment and typical standard of care assessment. After this selection, the anesthesiologist administered a bolus of 1 to 2 ml indocianyne green intravenously. Perfusion of the colon was visualized and assessed via fluorescence angiography and the line of demarcation between perfused and nonperfused tissue was noted and compared with the initial planned transection point.

Sponsors

State Scientific Centre of Coloproctology, Russian Federation
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Have a planned circular stapled colorectal anastomosis * Have signed an approved informed consent form for the study

Exclusion criteria

* Has known allergy or history of adverse reaction to indocianyne green, iodine or iodine dyes.

Design outcomes

Primary

MeasureTime frame
Anastomotic Leak Rate0 to 30 days

Countries

Russia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026