The Origin of Infrapyloric Artery

Completed

• Conditions: Stomach Neoplasm
• Interventions: Procedure: Gastrectomy

• Registration Number: NCT03071237
• Lead Sponsor: Peking University

Brief Summary

Infrapyloric artery(IPA) is of great importance for gastric cancer patients. According to previous study, the origin of IPA varies greatly among different studies. This trial aims to tell the distribution of IPA origin in Chinese patients.

Detailed Description

Infrapyloric artery(IPA) is of great importance for gastric cancer patients. In early gastric cancer patients, the pylorus-preserving gastrectomy requires the preserving of IPA. In advanced gastric cancer patients, the subgroup of No. 6 lymph node might be associated with IPA. In Japanese Gastric Cancer Association(JGCA) gastric cancer classification guidelines, the No. 6 lymph nodes is defined as lymph nodes along the first branch and proximal part of the right gastroepiploic artery(RGEA) down to the confluence of the right gastroepiploic vein and the anterior superior pancreatoduodenal vein. However,if IPA origins from the gastroduodenal artery(GDA) or anterior superior pancreatoduodenal artery(ASPDA), the lymph nodes along the IPA can not be grouped into the No. 6 lymph nodes. Thus, a new definition of No. 6 lymph nodes is needed on the basis of the origin of IPA.

Previous studies about IPA origin are few and the origin of IPA varies greatly among different studies.

Study Timeline

• Study First Submitted: 2017-03-01
• Study First Submitted QC: 2017-03-01
• Study Start: 2017-03-04
• Study First Posted: 2017-03-06
• Primary Completion: 2017-12-31
• Study Completion: 2017-12-31
• Status Verified: 2019-02
• Last Update Submitted: 2019-02-17
• Last Update Posted: 2019-02-19

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 429

Inclusion Criteria

• Patients with gastric cancer who needs to receive total or distal gastrectomy.
• Signed informed consent

Exclusion Criteria

• IPA not dissected, photo-taken or video-recorded.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Observational group	Gastrectomy	Patients who would receive total gastrectomy or distal gastrectomy are enrolled in to the study and this group. An optional reconstruction of IPA by enhanced CT scan can be performed before surgery but not a definite require. During the operation, IPA origin location will be photo-taken or video-recorded before its transection.

Primary Outcome Measures

Name	Time	Method
Distribution of IPA origin	Immediately after surgery	The percentage of IPA origin from GDA, ASPDA and RGEA.

Secondary Outcome Measures

Name	Time	Method
Reconstruction rate of IPA by CT scan	Immediately after the reconstruction of CT scan.	The rate of identification of IPA origin by reconstruction of CT scan.

Trial Locations

Locations (1)

Beijing Cancer Hospital; 🇨🇳 Beijing, Beijing, China