The Impact of Two-field or Three-field Lymphadenectomy on Overall Survival in Middle and Lower Thoracic Esophageal Squamous Cell Carcinoma: An Observational Study

The Impact of Two-field or Three-field Lymphadenectomy on Overall Survival in Middle and Lower Thoracic Esophageal Squamous Cell Carcinoma: A Single Center Retrospective Analysis

To clarify the effect of Two-field or Three-field Lymphadenectomy on the survival of esophageal squamous cell carcinoma.

Inclusion Criteria:

• 1. Men and women aged 18-85 years
• 2. Histologically confirmed primary thoracic esophageal squamous cell carcinoma,
• 3. Staging PT1b-4A, N0-3, M0 AJCC eighth edition
• 4. Excluding lymph node dissection < 15, (meeting the guideline criteria)
• 5. The tumor located in the lower middle thoracic.

Exclusion Criteria:

• 1. Patients with a history of previous thoracic and abdominal surgery that may affect lymphatic reflux
• 2. Patients with distant metastasis confirmed by imaging
• 3. Patients with obvious surgical contraindications.