The goal of this clinical trial is to investigate whether the use of bronchial blocker could reduce the incidence of postoperative vocal cord palsy than the use of double-lumen endobronchial tube in robot-assisted esophagectomy.

Esophagectomy is a challenging surgery that usually requires one lung ventilation, and double-lumen endobronchial tubes and bronchial blockers are commonly used for one lung ventilation.

Successful resection of recurrent laryngeal nerve lymph nodes during esophagectomy is important to survival and prevention of cancer recurrence, but there is a risk of postoperative vocal cord palsy due to the recurrent laryngeal nerve injury during the resection.

Compared to a double-lumen endobronchial tube, the use of a bronchial blocker is expected to reduce the incidence of recurrent laryngeal nerve injury; however, few clinical studies compare the two devices in terms of the incidence of postoperative vocal cord palsy in robot-assisted esophagectomy.

Therefore, the researchers aimed to investigate whether the use of bronchial blocker could reduce the incidence of postoperative vocal cord palsy than the use of double-lumen endobronchial tube in robot-assisted esophagectomy.

Inclusion Criteria:

• Adults aged 19 or older
• American Society of Anesthesiologists physical status I - III
• Elective robot-assisted esophagectomy
• Any clinical stage of esophageal cancer
• Patients who need recurrent laryngeal nerve lymph nodes resection

Exclusion Criteria:

• Patients who diagnosed vocal cord palsy or damage before surgery
• Patients who need specific airway device due to airway problem
• History of thoracic surgery
• Emergency surgery
• Combined surgery with other department
• Pregnant or nursing women