Boerhaave Syndrome

A 54-year-old man presents to the emergency department 6 hours after forceful retching and vomiting during a heavy meal. He reports sudden onset of severe retrosternal and epigastric pain radiating to the left shoulder, dyspnea, and neck swelling. On examination, a crunching sound synchronous with the heartbeat is heard on cardiac auscultation (Hamman sign). Chest X-ray shows left pleural effusion and pneumomediastinum. CT with water-soluble oral contrast reveals extravasation from the left posterolateral distal esophagus 3–5 cm above the gastroesophageal junction. The condition marked **B** in the diagram is suspected. Which of the following is the MOST APPROPRIATE immediate management for this hemodynamically stable patient presenting within 24 hours of symptom onset?