A Retrospective cohort study of evaluating the efficacy of ICG Fluorescence imaging for lymphatic flow in Laparoscopic lateral pelvic lymph node dissection for locally advanced middle-low rectal cancer.

A Retrospective cohort study of evaluating the efficacy of ICG Fluorescence imaging for lymphatic flow in Laparoscopic lateral pelvic lymph node dissection for locally advanced middle-low rectal cancer. - A Retrospective cohort study of evaluating the efficacy of ICG Fluorescence imaging for lymphatic flow in Laparoscopic lateral pelvic lymph node dissection for locally advanced middle-low rectal cancer.

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000041372

Enrollment

600

Registered

2020-08-11

Start date

2020-08-10

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

with ICG local administration, 0.25 ml of ICG (2.5mg/ml) was locally injected submucosally into 4 points (the ventral side, dorsal side, left side, and right side) at anal side of tumor under direct v

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Laparoscopic lateral pelvic lymph node dissection for rectal cancer

Exclusion criteria

Exclusion criteria: patients preoperatively diagnosed with distant metastases, patients who underwent total pelvic exenteration, patients who underwent open or robotic surgery, patients with iodine allergy.

Design outcomes

Primary

Measure	Time frame
the total number of harvested lateral pelvic lymph nodes	—

Secondary

Measure	Time frame
the number of metastatic positive lateral pelvic lymph nodes, the total number of harvested lymph nodes, the number of metastatic positive lymph nodes, postoperative complications (short-term and long term), intraoperative complications, re-operation rate, length of postoperative hospital stay, operation time, volume of blood loss, distal margin, proximal margin, circumferential resection margin, preoperative treatment, postoperative treatment, local recurrence rate, distant recurrence-free survival, relapse-free survival, overall survival	—

Measure

Time frame

the number of metastatic positive lateral pelvic lymph nodes, the total number of harvested lymph nodes, the number of metastatic positive lymph nodes, postoperative complications (short-term and long term), intraoperative complications, re-operation rate, length of postoperative hospital stay, operation time, volume of blood loss, distal margin, proximal margin, circumferential resection margin, preoperative treatment, postoperative treatment, local recurrence rate, distant recurrence-free survival, relapse-free survival, overall survival

—

Countries

Japan

Contacts

Public ContactHirokazu Suwa

Yokosuka kyosai hospital Department of surgery

hiro0302.suwa@gmail.com046-822-2710

Outcome results

None listed

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