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Safety and Feasibility of Robot-Assisted Minimally Invasive Esophagectomy (RAMIE) with Three-Field Lymphadenectomy
S van der Horst1, T J Weijs1, W W Braunius2
1Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
Background:
In the West, patients with cervical lymph node metastasis of resectable esophageal cancer at diagnosis are generally precluded from curative treatment. This study prospectively explored the safety and feasibility of neoadjuvant chemoradiotherapy followed by robot-assisted minimally invasive esophagectomy (RAMIE) with three-field lymphadenectomy for these patients.
Methods:
Between 2015 and 2021, patients with resectable thoracic esophageal cancer and cervical lymph node metastasis were recruited nationwide in the Netherlands. Patients without interval metastasis following neoadjuvant chemoradiotherapy and good physical condition underwent RAMIE with bilateral three-field lymphadenectomy. Safety was predefined as ≤50% Clavien-Dindo grade ≥3b postoperative complications.
Results:
Neoadjuvant chemoradiotherapy was administered to 29 patients (19 (66%) adenocarcinoma and 10 (34%) squamous cell carcinoma). After restaging, nine (31%) patients were excluded (interval metastasis, clinical deterioration, or withdrawn consent). RAMIE was performed in 20 patients (R0-rate 95%). A median of 42 [range 21-71] lymph nodes were resected of which 13 [range 2-35] were cervical. Only 1 (5%) patient had an unexpected contralateral cervical lymph node metastasis. Complications grade ≥3b occurred in 50%. Most frequent complications of any grade were recurrent laryngeal nerve palsy (45%) and pneumonia (40%). Overall survival at 1 year was 85% and quality of life at 6 months was comparable to esophageal cancer patients treated with curative intent.
Conclusions:
RAMIE with three-field lymphadenectomy following neoadjuvant chemoradiotherapy for patients with resectable esophageal cancer presenting with cervical lymph node metastasis is feasible in a Western population. Because contralateral cervical metastasis is rare, a unilateral neck dissection would suffice in the majority of cases.
Clinical Trial:
gov Identifier: NCT02426879. Dutch trial register Identifier: NTR 4552.
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