Novel Stent Placement Technique for Intestinal Stenosis Assisted by an Ultrafine Endoscope

Two Different Novel Stent Placement Technique for Intestinal Stenosis Assisted by an Ultrafine Endoscope

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04494919

Enrollment

Registered

2020-07-31

Start date

2018-06-01

Completion date

2020-06-30

Last updated

2020-08-04

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

Conditions

Colorectal Carcinoma

Brief summary

Colorectal cancer is the third most common cancer worldwide and results in 8-25% acute malignant bowel obstruction. Since Dohmoto et al. first applied and reported the self-expanding metal stents (SEMS) in the treatment of colorectal stenosis, they have been widely used not only as an alternative treatment as a bridge to surgery (BTS), but also as a mean of palliative option for stenosing lumen in clinical practice. Numerous publications have reported that the stent placement technique showed 75% to 100% technical success rates and 84% to 100% clinical success rates. However, it is sometimes difficult to place due to the distorted anatomy or acute angulations in patients and other conditions with poor endoscopic visualization with the normal colonoscope. The aims of this study were to present our results with two novel SEMS implantation techniques.

Interventions

DEVICEUltrafine Endoscope

The reversal of the normal colonoscope (CV-260SL; Olympus, Tokyo, Japan) along the guidewire to replace the UFE (GIF-XP260NS; Olympus, Tokyo, Japan).

Study design

Observational model

CASE_ONLY

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Age ≥ 18 years old * Patients with colorectal cancer stenosis * Patients with intestinal stent implantation in digital subtraction angiography room

Exclusion criteria

* Patients undergoing conventional intestinal stent implantation

Design outcomes

Primary

Measure	Time frame	Description
The technical success rate	1 hour	the ratio between the patients with correctly placed SEMS and those scheduled for SEMS implantation.

Secondary

Measure	Time frame	Description
The clinical success rate	24 hours	the ratio between the patients with regressive signs and symptoms of obstruction (within 24 h) and those succeeded for SEMS implantation.
The adverse events rate	2 year	the ratio between the patients with adverse events (like perforation, bleeding, and reobstruction) and those succeeded for SEMS implantation.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026