Background: Anomalies of the aortic arch and its branches rarely develop. The surgery for esophageal cancer may be challenging with the presence of these anomalies. This study is aimed to analyze the influence of these variations during the esophagectomy.
Methods: A total of 21 patients with aortic arch and brachiocephalic vessel variations were retrospectively identified from 2013 to 2019. Anomalies were distributed: 15 patients with left-sided aortic arch combined with aberrant right subclavian artery (LAA + ARSA), 2 right-sided aortic arch with mirror-image arch branches (RAA + MIAB), and 4 right-sided aortic arch combined with aberrant left subclavian artery (RAA + ALSA). Perioperative characteristics and long-term survival were analyzed.
Results: Tumors were mostly located in the upper and middle thorax (42.9% and 47.6%, respectively). Of the 15 patients with LAA + ARSA, 13 underwent McKeown esophagectomy and 2 via transhiatal approach. Left thoracotomy was performed on all 6 patients with RAA. The R0 resection rate was 90.5% (19/21). Recurrent laryngeal nerve (RLN) injury occurred in 2 patients. Two patients died within 30 days postoperatively. Lymph node yield was 23.6 ± 1.2, with a metastasis rate of 38.1% (8/21). The median follow-up time was 18 months. Recurrence occurred in 6 patients (11-35 months) and 4 patients died after recurrence with a median time to death of 21 months (8-47 months).
Conclusion: For resectable esophageal cancer combined with aortic arch and its branches anomalies, satisfactory surgical results can be obtained under careful preoperative evaluation and reasonable surgical approach selection.
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