Natural history of Lower Gastrointestinal Bleeding of unknown origin

Natural history of hematochezia of unknown origin: Real-world analysis with long-term follow-up - Natural history of hematochezia of unknown origin: Real-world analysis with long-term follow-up

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000045955

Enrollment

400

Registered

2021-11-06

Start date

2019-04-01

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

hematochezia

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients admitted to Dokkyo Medical University Hospital with the chief complaint of hematochezia

Exclusion criteria

Exclusion criteria: Exclusion criteria 1. those in whom hematochezia was not observed after the hospital visit 2. those who received endoscopic treatment within 1 month before the visit 3. those for whom observation up to the terminal ileum could not be done using colonoscopy 4. those for whom the cause of hematochezia was identified during the first colonoscopy 5. those who had no follow-up visit after hospital discharge (follow-up period 0 day) 6. those who had a past history of hematochezia

Design outcomes

Primary

Measure	Time frame
The rebleeding rate in hematochezia patients with an unidentified bleeding source	—

Secondary

Measure	Time frame
The period until rebleeding, total number of rebleeding episodes, the source of bleeding and the identification rate in rebleeding, the bleeding-related death rate, and rebleeding risk factors	—

Countries

Japan

Contacts

Public ContactTakanao Tanaka

Dokkyo Medical University Hosipital Department of Gastroenterology

tana1986@dokkyomed.ac.jp0282-87-2147

Outcome results