Background/Aim: There is no study comparing open esophagectomy (OE), video-assisted thoracic surgery (VATS), and robot-assisted minimally invasive esophagectomy (RAMIE) in a single institution. Patients and Methods: This study included 272 patients who underwent subtotal esophagectomy divided into three groups: OE (n=110), VATS (n=127), and RAMIE (n=35) groups. Moreover, short-term outcomes were compared. Results: Overall complications (CD≥II) were significantly less in the RAMIE than the OE and VATS groups. Recurrent laryngeal nerve paralysis (CD≥II) was significantly lower in the RAMIE than the OE group (p=0.026) and tended to be lower than that in the VATS group (p=0.059). The RAMIE group had significantly less atelectasis (CD≥I and II), pleural effusion (CD≥I and II), arrhythmia (CD≥II), and dysphagia (CD≥II), than both the OE and VATS groups. Conclusion: RAMIE reduced overall postoperative complications after esophagectomy compared with both OE and VATS.Esophageal cancer is the sixth leading cause of cancerrelated mortality worldwide because of its high malignant potential and poor prognosis (1). The postoperative 5-year survival rate in patients with American Joint Committee on Cancer stage I esophageal cancer is approximately 90%. This rate decreases to 45%, 20%, and 10% in patients with stages II, III, and IV diseases, respectively (2). Esophagectomy remains the most efficient treatment option, although chemoradiotherapy may effectively treat esophageal cancer (3). Despite advances in extended lymph node (LN) dissection and perioperative management of esophagectomy, it remains a highly invasive procedure associated with serious postoperative complications (4). The Japanese national database, including 5,354 esophagectomy patients in 713 hospitals in 2011, reported an overall morbidity rate of 41.9% and a 30-day and surgery-related mortality of 1.2% and 3.4%, respectively (5).Thoracoscopic esophagectomy constitutes an attractive and less invasive alternative because esophagectomy with radical lymphadenectomy is one of the most invasive gastrointestinal surgeries (6). Of the patients, 4,209 (66.8%) underwent video-assisted thoracoscopic surgery (VATS). According to a Japanese national database, the ratio increases annually, including 6,298 esophagectomy patients in 2019 (7). Robot assistance provides an enlarged, threedimensional field of view and improves the surgeon's dexterity due to surgical wrists and tremor filtration (8). Multiple retrospective studies have investigated the surgical outcomes of robot-assisted minimally invasive esophagectomy (RAMIE) compared to VATS since its development in 2003 (9-12). A randomized controlled trial reported the benefits of RAMIE over conventional open esophagectomy (OE) in terms of short-term outcomes, and comparable long-term results to OE were found (13).However, there is no study comparing the three techniques of OE, VATS, and RAMIE in a single institution. This study hypothesized that VATS reduced postoperative complications compared to OE. Moreover, RAMIE reduc...