Safety and efficacy of endoscopic tattooing using a short-length needle for preoperative localization in colorectal cancer surgery: a prospective study

Safety and efficacy of endoscopic tattooing using a short-length needle for preoperative localization in colorectal cancer surgery: a prospective study - TATTOO study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000021012

Enrollment

453

Registered

2016-02-22

Start date

2016-06-21

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

Colon cancer

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients diagnosed as colorectal cancer after colonoscopy in Shizuoka cancer center 2. Patients indicated for surgical resection 3. Patients older than 20 years 4. Patients accepted the participation for this study after full explanation and understanding of the content s of this study

Exclusion criteria

Exclusion criteria: 1. Patients with a palpable rectal cancer 2. Patients whom investigators regarded as inappropriate for the participation

Design outcomes

Primary

Measure	Time frame
The proportion of visible tattooing during laparoscopic surgery	—

Secondary

Measure	Time frame
1. The proportion of ink spillage during laparoscopic surgery 2. The proportion of visible tattooing during laparoscopic surgery for rectal cancer 3. The proportion of ink spillage during laparoscopic surgery for rectal cancer 4. The proportion of complications during laparoscopic surgery 5. Th proportion of sufficient surgical margins in the resected specimens after laparoscopic surgery 6. The duration between endoscopic tattooing and surgery 7. Comparison of accuracy of preoperative tumor location between by endoscopy and radiography 8. The proportion of visible tattooing by endoscopists' experience 9. The proportion of ink spillage by endoscopists' experience	—

Measure

Time frame

1. The proportion of ink spillage during laparoscopic surgery 2. The proportion of visible tattooing during laparoscopic surgery for rectal cancer 3. The proportion of ink spillage during laparoscopic surgery for rectal cancer 4. The proportion of complications during laparoscopic surgery 5. Th proportion of sufficient surgical margins in the resected specimens after laparoscopic surgery 6. The duration between endoscopic tattooing and surgery 7. Comparison of accuracy of preoperative tumor location between by endoscopy and radiography 8. The proportion of visible tattooing by endoscopists' experience 9. The proportion of ink spillage by endoscopists' experience

—

Countries

Japan

Contacts

Public ContactKenichiro Imai

Shizuoka Cancer Center Division of Endoscopy

ke.imai@scchr.jp055-989-5222

Outcome results