Observation of anorectal lymphovascular networks using intraoperative fluorescence imaging

Observation of anorectal lymphovascular networks using indocyanine green fluorescence imaging - Observation of anorectal lymphovascular networks using indocyanine green fluorescence imaging

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000047324

Enrollment

Registered

2022-04-01

Start date

2022-03-30

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Rectal cancer

Interventions

The patient was administered general anesthesia, and then 0.25 mg of the dye solution of indocyanine green is injected into the submucosa of the anal canal at the anterior, posterior and bilateral wal

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The inclusion criteria of this study is the patients with stage 0-IV rectal cancer, and other rectal tumors (gastrointestinal stromal tumor, neuroendocrine tumor) who does not undergo preoperative therapy.

Exclusion criteria

Exclusion criteria: The exclusion criteria of this study is the patients with the histories of allergy for indocyanine green, iodine, and other materials. The patients who do not agree to participate in the study are also be excluded.

Design outcomes

Primary

Measure	Time frame
The primary outcome of this study is the data collection of lymphovascular network in the anorectal region. The patient was administered general anesthesia, and then indocyanine green is injected into the submucosa at the anal canal. Intraoperatively, the lymph flow around the anal canal was observed using a laparoscopic near-infrared camera. The data will be the qualitatively, and statistic analyses will not be conducted.	—

Measure

Time frame

The primary outcome of this study is the data collection of lymphovascular network in the anorectal region. The patient was administered general anesthesia, and then indocyanine green is injected into the submucosa at the anal canal. Intraoperatively, the lymph flow around the anal canal was observed using a laparoscopic near-infrared camera. The data will be the qualitatively, and statistic analyses will not be conducted.

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Countries

Japan

Contacts

Public ContactSato Kentaro

Hakodate Municipal Hospital Department of Gastroenterological Surgery

satonumber7or13@gmail.com0138-43-2000

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026