Acute mesenteric ischemia Signs and symptoms of the acute form of mesenteric ischemia include: Abrupt, severe abdominal pain Urgent need to have a bowel movement Fever Nausea and vomiting Chronic mesenteric ischemia Signs and symptoms of the chronic form of mesenteric ischemia include: Abdominal pain that starts about 30 minutes after eating Pain that worsens over an hour Pain that goes away within one to three hours