👉 A thoracoabdominal syndrome is a condition characterized by symptoms such as pain, swelling, and difficulty breathing in the upper abdomen. Symptoms may include abdominal pain that radiates to the back or neck, nausea, vomiting, and fatigue. The condition can be caused by a variety of factors including inflammation of the gut lining, underlying medical conditions, and certain medications. Treatment options for thoracoabdominal syndrome often involve medication to relieve symptoms and manage complications such as infections or bleeding.