The Origin of Infrapyloric Artery (IPA-Origin)

Peking University

Status: Completed

Conditions: Stomach Neoplasm

Treatments: Procedure: Gastrectomy

Study type: Observational

Funder types: Other

Identifiers

NCT03071237

2017YJZ07

Details and patient eligibility

About

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.

Full 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.

Enrollment: 429 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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.

Trial design

429 participants in 1 patient group

Observational group

Description:

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.

Treatment:

Procedure: Gastrectomy