Stent Therapy Versus Endoscopic Vacuum Therapy for Anastomotic Leaks After Esophagectomy

Inclusion Criteria: * Histologically confirmed oesophageal carcinoma or similarly operated neoplasia (e.g., GIST, NET, subepithelial tumors) * Esophagectomy with an intrathoracic esophago-gastric anastomosis * Radiologically or endoscopically diagnosed esophago-gastric anastomotic leakage * Clinical symptoms / symptoms due to insufficiency or increase in signs of inflammation, most likely as a result of anastomotic leakage * Age ≥18 years * To empower the patient to understand the scope of the study and its consequences or information, to consent to it and to sign the educational documents. * Written declaration of consent of the patient to be included. If the patient is unable to sign by hand, a witness must confirm the oral examination by signature. Exclusion Criteria: * Macroscopically incompletely resected tumor (R2), palliative resection * Endoscopically verified necrosis or critical ischemia of the anastomotic region of the interponate * Size of insufficiency more than 50% of circumference * Impossibility of radiological interventional insertion of a drainage * Early anastomotic leak (≤ 48 hours postoperatively), late insufficiencies (\> 4 weeks) * Therapeutic anticoagulation * Severe septic shock that indicates surgical therapy * Pregnant and lactating women