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A Clinical Study of Laparoscopic Proximal Gastrectomy Based on PTST(Parachute-tunnel- Style Technique) Esophagogastric Anastomose.

Not Applicable
Conditions
Proximal Gastrectomy
Gastroesophagostomy
Gastroesophageal-junction Cancer
Registration Number
NCT06217991
Lead Sponsor
Tang-Du Hospital
Brief Summary

1. To evaluate the safety, simplicity and effectiveness of the gastric function (anti-reflux) preservation of the innovative "parachute-tunnel-style technique" (PTST) in laparoscopic proximal gastrectomy.

2. To investigate the correlation between anastomotic stenosis and blood supply of serosa-muscle flap,suture after esophagogastric anastomosis.(obtain objective indexes such as blood supply, healing pattern and length change of serosa-muscle flap through animal experiments)

Detailed Description

Not available

Recruitment & Eligibility

Status
ENROLLING_BY_INVITATION
Sex
All
Target Recruitment
100
Inclusion Criteria
  • Gastric cancer was confirmed histopathologically;
  • Patients who may undergo proximal gastrectomy according to guidelines;
  • Early upper gastric cancer, more than 1/2 of the distal gastric remnant remained after resection;
  • Esophagogastric junction carcinoma with maximum diameter ≤4 cm;
  • Patients with advanced upper gastric cancer (MSI-H) achieved cCR by neoadjuvant immunochemotherapy.
Exclusion Criteria
  • Patients with systemic conditions that cannot tolerate laparoscopic surgery;
  • Distal gastric remnant was less than 1/2 after proximal gastrectomy.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Primary Outcome Measures
NameTimeMethod
occurrence rate of reflux esophagitisthree month after surgery; six month after surgery

* Visick score after surgery

* Los Angeles rating

occurrence rate of anastomotic stenosisone month after surgery

morbidity(%)

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (1)

General Surgery Gastrointestinal Department,Tang-Du of Fourth Military Medical University

🇨🇳

Xi'an, Shannxi Province, China

General Surgery Gastrointestinal Department,Tang-Du of Fourth Military Medical University
🇨🇳Xi'an, Shannxi Province, China

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