Clinical trial NCT03071237: The Origin of Infrapyloric Artery
Official title: The Origin of Infrapyloric Artery: an Observational Trial
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Stomach Neoplasm
Keywords: infrapyloric artery
gastric cancer
Lead sponsor: Peking University
Sponsor class: OTHER
First posted: 2017-03-06
Enrollment: 429
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Observational model: CASE_ONLY
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Patients with gastric cancer who needs to receive total or distal gastrectomy.

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.

Eligibility criteria: 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.

Primary outcomes:
measure: Distribution of IPA origin
timeFrame: Immediately after surgery
Secondary outcomes:
measure: Reconstruction rate of IPA by CT scan
timeFrame: Immediately after the reconstruction of CT scan.
Other outcomes:
Locations:
city: Beijing
country: China
facility: Beijing Cancer Hospital
state: Beijing
Study officials:
affiliation: Gastrointestinal Cancer Center, Peking University
name: Ziyu Li, M.D.
role: PRINCIPAL_INVESTIGATOR
References:
citation: Haruta S, Shinohara H, Ueno M, Udagawa H, Sakai Y, Uyama I. Anatomical considerations of the infrapyloric artery and its associated lymph nodes during laparoscopic gastric cancer surgery. Gastric Cancer. 2015 Oct;18(4):876-80. doi: 10.1007/s10120-014-0424-5. Epub 2014 Sep 17.
citation: Shinohara H, Kurahashi Y, Kanaya S, Haruta S, Ueno M, Udagawa H, Sakai Y. Topographic anatomy and laparoscopic technique for dissection of no. 6 infrapyloric lymph nodes in gastric cancer surgery. Gastric Cancer. 2013 Oct;16(4):615-20. doi: 10.1007/s10120-012-0229-3. Epub 2013 Jan 13.
citation: Miao R, Qu J, Li Z, Wang D, Yu J, Zang W, Li Y, Liu F, Zhang J, Song W, Ye K, Yan S, Wang W, Ren S, Zang L, Jing C, Zhang L, Wang K, Fu W, Fan L, Liang B, Zhao G, Cai J, Yang L, Zhu J, You J, Yang K, Huang Q, Niu Z, Ning N, Qiu X, Ji G, Liang F, Huang H, Gao C, Shan F, Li S, Jia Y, Zhang L, Ying X, Zhang Y, Bu Z, Su X, Zhao G, Li Z, Ji J. Anatomical variation of infra-pyloric artery origination: A prospective multicenter observational study (IPA-Origin). Chin J Cancer Res. 2018 Oct;30(5):500-507. doi: 10.21147/j.issn.1000-9604.2018.05.03.