Three-field lymph node dissection in esophageal cancer surgery

Area of Science:

• Surgical Oncology
• Gastroenterology

Background:

• Esophageal cancer treatment has advanced with multidisciplinary approaches, yet prognosis remains challenging.
• Lymph node (LN) metastasis is a key factor, necessitating extended dissection strategies.
• Three-field lymph node dissection (3FD), encompassing cervico-thoraco-abdominal regions, is a widely adopted technique for esophageal cancer.

Purpose of the Study:

• To evaluate the efficacy and safety of three-field lymph node dissection (3FD) versus two-field lymph node dissection (2FD) in esophageal cancer.
• To identify factors influencing the choice of LN dissection extent for optimal oncological outcomes.
• To explore the integration of perioperative treatments with surgical strategies for improved patient prognosis.

Main Methods:

• Review of comparative trials assessing 3FD against 2FD in transthoracic esophagectomy.
• Analysis of factors such as primary tumor location, disease stage, histology, and perioperative treatment regimens.
• Consideration of postoperative complications associated with extended lymphadenectomy.

Main Results:

• Transthoracic esophagectomy with 3FD demonstrates superior prognostic benefits compared to 2FD.
• 3FD is associated with increased risks of postoperative complications, including recurrent laryngeal nerve palsy and gastrointestinal dysfunction.
• Limited prospective data exists comparing 2FD and 3FD directly.

Conclusions:

• The optimal extent of lymph node dissection for esophageal cancer should be individualized based on tumor characteristics and patient factors.
• Balancing the oncological benefits of 3FD with its associated morbidities is crucial.
• Future research should focus on prospective trials combining intensified perioperative treatments with minimally invasive surgical approaches to enhance esophageal cancer outcomes.