The diaphragm separates the thorax from the abdominal cavity, and trauma to either region may cause hernia of the diaphragm. The sequelae of the diaphragmatic injury may manifest as an acute or chronic presentation. The acute manifestation may be bleeding and herniation of viscera into the thoracic cavity causing hemodynamic compromise.1 We present a case of an acute tension viscerothorax that occurred immediately after blunt trauma leading to cardiac and pulmonary compromise.
CASEA 31-year old man was admitted to the Emergency Department of Yuzuncu Yil University Hospital. He was the victim of a traffic accident and sustained injuries to the right lower limb. On admission, the patient had severe respiratory distress (respiratory rate, 43/min), hypotension (85/59 mm Hg), and tachycardia (heart rate, 142 beats per minute). He was cyanotic, and auscultation revealed decreased breath sounds in the left hemithorax. Heart sounds were heard to the right of the sternum. The peripheral pulses were all present and the neurological examination was normal.Initially, the clinical presentation and chest radiograph were misinterpreted as tension pneumothorax in the emergency room. A chest tube was inserted, resulting in no improvement of cardiopulmonary function. The patient was transferred to our department for further evaluation and management. A repeated chest radiograph revealed a large mass in the left hemithorax displacing the heart and mediastinum to the right side (Figure 1). A CT scan confirmed the tension viscerothorax. Repeated attempts to insert a nasogastric tube were unsuccessful. The hematology and emergency routine biochemistry results were within normal limits.He was taken to the operating room immediately. A left thoracotomy was performed through the seventh intercostal space. At exploration, the stomach and omentum were found in the left thoracic cavity herniated through a diaphragmatic rupture, compressing both the heart and lung (Figure 2). The stomach had dilated inside to the left hemithorax. An attempt to insert a nasogastric tube was successful while repositioning the stomach. The stomach was decompressed with the aid of nasogastric tube aspiration. The decompression resulted in immediate improvement in ventilation and oxygenation. The decompressed stomach and omentum were easily reducted following gastric aspiration. A 14-centimeter linear tear in the left hemidiaphragm was oversewn with interrupted non-absorbable sutures (0-polypropyline). Other intraabdominal and intrathoracic organs were uninjured and there was no evidence of hemothorax or pneumothorax. A chest tube was placed in the left thoracic cavity. The incision of the thoracotomy was closed in the standard manner. The hospital course of the patient was somewhat prolonged due to a right femur fracture. At the ninth month of follow-up, he was asymptomatic and had an unremarkable physical examination.
DISCUSSIONForceful impact to the upper abdomen due to blunt abdominal trauma creates a sudden increase in intraabdominal pressure that transmits...