[Anatomy of mesoesophagus in esophagectomy with minimally invasive three-fields lymphadenectomy].

OBJECTIVE: To explore the anatomic features of mesoesophagus in combined thoracoscopic and laparoscopic esophagectomy with three-fields lymphadenectomy.

METHODS: Clinical data of 67 patients undergoing thoracoscopic and laparoscopic esophagectomy with three-fields lymphadenectomy from July 2011 to September 2012 were analyzed retrospectively. All the patients underwent three-fields lymphadenectomy. Proper surgical planes were selected according to anatomy of mesoesophagus. Thoracoscopic surgical space was bounded on azygotic vein and divided into upper and low esophageal triangle. Pancreas was the key anatomical mark for laparoscopic gastric dissection, and peripancreatic space was the natural laparoscopic surgical plane. Prevertebral fascia was bottom surface of neck dissection and carotid sheath was the boundary of two sides.

RESULTS: The median operative time was 251.6 min (range, 220 to 320 min). The median operative blood loss was 105.6 ml (range, 40 to 320 ml). The median number of lymph nodes dissected was 29.1 (range, 13 to 46, totally 1949). There was no perioperative death. Sixty-six patients were followed up with a mean follow-up time of 8.2 months (range, 2 to 14 months). Postoperative complications included reflux esophagitis in 10 and anastomotic stenosis in 3 cases.

CONCLUSION: It is safe and more radical for minimally invasive esophagectomy that overall concept of minimally invasive anatomy of mesoesophagus is applied to identify the anatomic plane and landmark during operation.