Methodological study on confirming the proximal resection margin with intraoperative ultrasound in adenocarcinoma of esophagogastric junction

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2500105231

Enrollment

Unknown

Registered

2025-07-01

Start date

2025-07-01

Completion date

Unknown

Last updated

2025-07-07

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

Conditions

adenocarcinoma of esophagogastric junction

Interventions

treatment group:The subjects undergo gastroscopy before surgery to confirm the location of the tumor, and two titanium clips are placed on the oral side of the lesion. During the operation, ultrasound

Eligibility

Sex/Gender

All

Age

18 Years to 75 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18 - 75 years old; 2. Pathologically confirmed Siewert II adenocarcinoma of esophagogastric junction; 3. No distant metastasis; 4. ASA score of I, II, or III; 5. Willingly sign the informed consent form and participate in the study.

Exclusion criteria

Exclusion criteria: 1. History of cancer in the past 5 years or having concurrent cancer in other organs. 2. Having surgical contraindications. 3. Requiring emergency surgery.

Design outcomes

Primary

Measure	Time frame
Positive rate of intraoperative frozen pathology of the proximal resection margin;	—

Secondary

Measure	Time frame
Intraoperative ultrasound localization time;Incidence of postoperative complications;	—

Countries

China

Contacts

Public ContactPengyuan Wang

Peking University First Hospital

pengyuan_wang@bjmu.edu.cn+86 139 1115 8750

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026