title: The implementation of minimally-invasive esophagectomy does not impact short-term outcome in a high-volume center.
abstract: BACKGROUND
  Esophagectomy represents the gold standard in the treatment of resectable esophageal cancer. Despite significant improvements in perioperative care, postoperative morbidity and mortality rates remain high. Minimally-invasive surgical techniques introduced to the surgical treatment of esophageal malignancies have been shown to successfully diminish surgical trauma and postoperative morbidity.
  
  
  OBJECTIVE
  In the present report we present the stepwise implementation of minimally-invasive techniques in the treatment of esophageal cancer at a high-volume center and its influence on overall patient outcome.
  
  
  METHODS
  A total of 165 consecutive patients with esophagectomy, in two 4-year periods, namely that before (period A) and that after (period B) the implementation of minimally-invasive esophagectomy (MIE) for cancer, were compared. Patients' characteristics, and perioperative, surgical, oncological and survival outcomes were compared.
  
  
  RESULTS
  In time period A, 73 patients were treated with open esophagectomy (OE), whereas in time period B 37 patients (40.2%) underwent an OE and 55 (59.8%) a minimally-invasive esophagectomy. Surgical and non-surgical complications did not differ significantly between groups (B: 44.6% vs. A: 54.8%; B: 38% vs. A: 35.6%; p>0.05). Duration of ventilation (B: 1.8 days vs. A: 6.7 days), ICU (B: 5.7 days vs. A: 12.2 days) and hospital stay (B: 20.5 days vs. A: 28.4 days) were significantly reduced in patients of time period B. The number of lymph nodes removed and complete resection rates were comparable (mean=18.1 ± 10.1 lymph nodes; B: 87% R0 vs. A: 93.2% R0). No significant differences between the groups were detectable regarding short-term disease-free or overall survival.
  
  
  CONCLUSIONS
  The implementation of minimally-invasive esophagectomy is feasible, safe and has the potential to reduce perioperative morbidity without compromising oncological outcome.
authors: Medical University of Vienna, Department of Surgery, Upper-GI Research, Comprehensive Cancer Center, Vienna, CCC-GET, University Clinic of Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria.
authors: Katrin
authors: K
authors: Schwameis
authors: Ahmed
authors: A
authors: Ba-Ssalamah
authors: Fritz
authors: F
authors: Wrba
authors: Peter
authors: P
authors: Birner
authors: Gerhard
authors: G
authors: Prager
authors: Michael
authors: M
authors: Hejna
authors: Rainer
authors: R
authors: Schmid
authors: Reza
authors: R
authors: Asari
authors: Johannes
authors: J
authors: Zacherl
authors: Sebastian Friedrich
authors: SF
authors: Schoppmann
mesh_terms: D000230:Adenocarcinoma / Q000401:mortality* / Q000473:pathology / Q000601:surgery; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000401:mortality* / Q000473:pathology / Q000601:surgery; D004938:Esophageal Neoplasms / Q000401:mortality* / Q000473:pathology / Q000601:surgery; D016629:Esophagectomy / Q000401:mortality*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D009367:Neoplasm Staging; D011183:Postoperative Complications; D011379:Prognosis; D011446:Prospective Studies; D015996:Survival Rate
keywords: Minimally-invasive esophagectomy; esophageal cancer; outcome