Magnetic Compression Anastomosis for Esophageal Obstruction: Indications, Contraindications, Methodologies, and Technique Strategies

BACKGROUND AND AIMS: There are several limitations to the application of conventional endoscopic therapy for refractory esophageal stenosis and even atresia, and the secondary option of surgery involving reanastomosis also has drawbacks. Magnetic compression anastomosis (MCA) is a novel technique that relies on magnetic attraction for recanalization and the repair of esophageal obstruction. We evaluate and discuss the clinical value and implementation strategies of the MCA technique as a promising countermeasure for esophageal obstruction. METHODS: In this study, we retrospectively enrolled 7 patients with esophageal stenosis or atresia who underwent MCA from December 2015 to June 2023. Gastroscopic combined with laparoscopic-assisted gastroesophageal MCA and jejunostomy were performed for patient 1; laparotomy and gastroscopicassisted MCA and jejunostomy were performed for patient 2; laparoscopic gastrostomy combined with endoscopic-assisted MCA was performed for patients 3 and 4; thoracotomy combined with MCA and gastrostomy were performed for patient 5; and endoscopic-assisted MCA was performed for patients 6 and 7. RESULTS: Anastomosis and recanalization were successfully performed for all patients. A total of 42.86% (3/7) of the patients underwent subsequent conventional endoscopic treatment, including balloon dilatation and stent implantation. The incidences of postoperative pulmonary infection and anastomotic leakage were both 14.29% (1/7), and no other adverse events occurred. The magnetic complexes were removed at a median of postoperative day 18. All patients resumed oral feeding. CONCLUSION: MCA appears to be a safe and effective therapy for the management of severe esophageal stenosis, refractory stenosis, and atresia of different etiologies, locations, lengths, and patterns, with the advantages of less trauma, high safety, and effectiveness. When making the operative proposal, diverse and individualized magnetic compression devices and methods should be flexibly adopted according to the patient's individual characteristics, history, obstruction distance, and obstruction patterns.