system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 68-year-old man is brought to the emergency department for increasing colicky lower abdominal pain and distention for 4 days. He has nausea. He has not passed flatus for the past 2 days. His last bowel movement was 4 days ago. He has hypertension, type 2 diabetes mellitus, and left hemiplegia due to a cerebral infarction that occurred 2 years ago. His current medications include aspirin, atorvastatin, hydrochlorothiazide, enalapril, and insulin. His temperature is 37.3°C (99.1°F), pulse is 90/min, and blood pressure is 126/84 mm Hg. Examination shows a distended and tympanitic abdomen. There is mild tenderness to palpation over the lower abdomen. Bowel sounds are decreased. Digital rectal examination shows an empty rectum. Muscle strength is decreased in the left upper and lower extremities. Deep tendon reflexes are 3+ on the left and 2+ on the right. The remainder of the examination shows no abnormalities. Laboratory studies are within normal limits. An x-ray of the abdomen in left lateral decubitus position is shown. The patient is kept nil per os and a nasogastric tube is inserted. Intravenous fluids are administered. Which of the following is the most appropriate next step in the management of this patient?
assistant
Endoscopic detorsion