Clinical trial NCT06871787: Near-Infrared Fluorescence Imaging With Indocyanine Green to Evaluate Bowel Anastomoses in Gynecologic Oncology Surgery
Official title: Evaluation of Bowel Anastomoses During Gynecologic Oncology Surgery Using Near-Infrared Fluorescence Imaging With Indocyanine Green
Study type: INTERVENTIONAL
Overall status: NOT_YET_RECRUITING
Phase: PHASE4
Conditions: Gynecologic Cancers
Ovarian Cancer
Endometrial Cancers
Cervical Cancers
Vulvar Cancer
Anastomotic Leaks
Keywords: Indocyanine Green
Near-Infrared Imaging
Bowel Anastomosis
Gynecologic Oncology
Anastomotic Complications
Perfusion Assessment
Lead sponsor: Istanbul University
Sponsor class: OTHER
First posted: 2025-03-12
Enrollment: 50
Sex: FEMALE
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: DIAGNOSTIC

Brief summary: The goal of this study is to evaluate if indocyanine green (ICG) fluorescence imaging helps reduce complications in bowel surgery performed during gynecologic cancer operations.

The main question it aims to answer is: Does using ICG fluorescence imaging during bowel anastomosis reduce the rate of complications such as leaks, infections, and abscesses within 30 days after surgery? Participants are women aged 18 and older undergoing surgery for gynecologic cancers (such as ovarian, uterine, cervical, or vulvar cancer). During surgery, investigators will inject ICG intravenously, then use a special near-infrared camera to see how well blood flows at the anastomosis site. The investigators will then decide if the reconnection is good enough or needs adjustment.

Researchers will record any complications within the first 30 days after surgery to understand if this imaging method helps reduce surgical risks.

Detailed description: In gynecologic cancer surgeries, complete removal of the tumor often requires bowel resection (removal of part of the intestine). After resection, surgeons perform bowel anastomosis to restore gastrointestinal continuity. However, anastomosis can sometimes fail, leading to complications such as leaks, pelvic abscesses, or infections. Such complications significantly affect patient health, recovery, and outcomes.

Indocyanine green (ICG) is a dye approved by health authorities for clinical use. When injected into the bloodstream, it glows brightly under near-infrared (NIR) light, allowing investigators to visually assess blood flow in tissues during surgery. Good blood flow is critical for proper healing of the bowel reconnection.

This study aims to evaluate the effectiveness of using ICG-enhanced NIR fluorescence imaging specifically during gynecologic oncology surgeries involving bowel resections. After surgeons complete the anastomosis, ICG will be administered intravenously. Investigators will then examine the blood flow at the anastomosis site using a special near-infrared camera. If the blood flow appears insufficient, investigators may choose to revise the bowel connection during the same operation.

The study will include approximately 50 women undergoing surgery for gynecologic cancers such as ovarian, uterine, cervical, or vulvar cancer. The primary goal is to determine whether the use of this imaging technique reduces complications, especially within the first 30 days after surgery.

The results of this research could lead to safer surgical procedures, improved patient outcomes, and potentially influence clinical practice guidelines in gynecologic oncology.

Eligibility criteria: Inclusion Criteria:

* Female patients aged 18 years or older.
* Diagnosis of gynecologic cancer (ovarian, endometrial, cervical, vulvar) requiring surgical treatment.
* Planned bowel resection and anastomosis during gynecologic oncology surgery.
* Ability and willingness to provide informed consent.

Exclusion Criteria:

* Known allergy or hypersensitivity to indocyanine green (ICG).
* Pregnancy or breastfeeding at the time of surgery.
* Severe liver or kidney dysfunction limiting the use of ICG.

Primary outcomes:
measure: Rate of Anastomotic Complications within 30 Days After Surgery
timeFrame: 30 days after surgery
Secondary outcomes:
measure: Number of Anastomoses Revised After Indocyanine Green Fluorescence Imaging
timeFrame: Intraoperative (During Surgery)
Other outcomes:
Locations:
city: Istanbul
country: Turkey
facility: Istanbul University, Istanbul Faculty of Medicine, Department of Gynecologic Oncology
Study officials:
affiliation: Istanbul University
name: Samet Topuz, Prof.
role: STUDY_CHAIR
affiliation: Istanbul University
name: Yagmur Minareci, Assist. Prof.
role: STUDY_DIRECTOR
References:
citation: Morales-Conde S, Alarcon I, Yang T, Licardie E, Camacho V, Aguilar Del Castillo F, Balla A. Fluorescence angiography with indocyanine green (ICG) to evaluate anastomosis in colorectal surgery: where does it have more value? Surg Endosc. 2020 Sep;34(9):3897-3907. doi: 10.1007/s00464-019-07159-1. Epub 2019 Oct 4.
citation: Emile SH, Khan SM, Wexner SD. Impact of change in the surgical plan based on indocyanine green fluorescence angiography on the rates of colorectal anastomotic leak: a systematic review and meta-analysis. Surg Endosc. 2022 Apr;36(4):2245-2257. doi: 10.1007/s00464-021-08973-2. Epub 2022 Jan 13.
citation: Chan DKH, Lee SKF, Ang JJ. Indocyanine green fluorescence angiography decreases the risk of colorectal anastomotic leakage: Systematic review and meta-analysis. Surgery. 2020 Dec;168(6):1128-1137. doi: 10.1016/j.surg.2020.08.024. Epub 2020 Oct 1.
citation: Parthasarathy M, Greensmith M, Bowers D, Groot-Wassink T. Risk factors for anastomotic leakage after colorectal resection: a retrospective analysis of 17 518 patients. Colorectal Dis. 2017 Mar;19(3):288-298. doi: 10.1111/codi.13476.
citation: BRUNSCHWIG A. Complete excision of pelvic viscera for advanced carcinoma; a one-stage abdominoperineal operation with end colostomy and bilateral ureteral implantation into the colon above the colostomy. Cancer. 1948 Jul;1(2):177-83. doi: 10.1002/1097-0142(194807)1:23.0.co;2-a. No abstract available.
citation: Grimm C, Harter P, Alesina PF, Prader S, Schneider S, Ataseven B, Meier B, Brunkhorst V, Hinrichs J, Kurzeder C, Heitz F, Kahl A, Traut A, Groeben HT, Walz M, du Bois A. The impact of type and number of bowel resections on anastomotic leakage risk in advanced ovarian cancer surgery. Gynecol Oncol. 2017 Sep;146(3):498-503. doi: 10.1016/j.ygyno.2017.06.007. Epub 2017 Jun 10.
citation: Harter P, Sehouli J, Lorusso D, Reuss A, Vergote I, Marth C, Kim JW, Raspagliesi F, Lampe B, Aletti G, Meier W, Cibula D, Mustea A, Mahner S, Runnebaum IB, Schmalfeldt B, Burges A, Kimmig R, Scambia G, Greggi S, Hilpert F, Hasenburg A, Hillemanns P, Giorda G, von Leffern I, Schade-Brittinger C, Wagner U, du Bois A. A Randomized Trial of Lymphadenectomy in Patients with Advanced Ovarian Neoplasms. N Engl J Med. 2019 Feb 28;380(9):822-832. doi: 10.1056/NEJMoa1808424.