Abstract
Introduction: Blunt trauma may cause small occult diaphragmatic injuries that increase in size over the course of decades. The gradual increase is secondary to the pressure disparity between the abdominal and thoracic cavities. Over time, visceral contents may traverse the defect and become incarcerated within the thoracic cavity.1 Typically, the defect occurs on the left side with gastric herniation. Rarely, the defect occurs on the RIGHT side since the large right lobe of the liver may preclude herniation through a right-sided diaphragmatic defect.2,3 This video presents a repair of a symptomatic right-sided diaphragmatic hernia that occurred decades after blunt trauma. Materials and Methods: A 58-year-old man was admitted to the emergency department with a 2-day history of acute abdominal pain that was sharp and diffuse. He had vomited several times and denied flatus for 24 hours. He had a history of three prior motor vehicle accidents in the 1980s. He had a history of oropharyngeal cancer that was treated with radiation then a neck dissection 2 years before presentation. He had no history of abdominal or thoracic surgery but had a significant tobacco history for 40 years. His blood work was normal. A CT scan of the abdomen showed a right-sided diaphragmatic hernia defect that contained small intestine and colon. There was no dilated bowel or evidence of a pneumoperitoneum or free fluid. There was air in the rectum. A well-healed old nondisplaced pubic rami fracture was evident also on the scan. Surgical intervention included a laparoscopic possible thoracoscopic diaphragmatic repair. Operatively, he was placed in a semilateral position at 30°. A Veress needle was used to enter the abdomen and three 5 mm ports were placed along the subcostal border. One of the 5 mm ports was upsized to a 10 mm port. Diagnostic laparoscopy delineated the diaphragmatic defect containing bowel. Several adhesions were divided and the colon and small intestine were reduced from the defect. There was no hernia sac and the thoracic cavity was pristine. Once the bowel was reduced, the defect was measured at ~5 cm by 3 cm. The defect was closed with interrupted 0-silk sutures. The suture line was then buttressed with a 15 cm by 10 cm mesh. The mesh was secured with absorbable tacks. A 28F chest tube was placed. Results: The operative time was 90 minutes. The patient was started on a clear liquid diet on postoperative day 1 and advanced to a regular diet on postoperative day 2. Because of social issues, he was discharged on postoperative day 4. A chest CT at ~6 months postoperatively showed no evidence of a recurrent diaphragmatic defect. Conclusions: Minimally invasive techniques are well suited for diaphragmatic defects. If a right-sided symptomatic diaphragmatic hernia is diagnosed, a minimally invasive approach through the abdomen may be performed without a thoracic approach. Adhesions may warrant thoracic access to reduce the abdominal contents, so double lumen intubation is prudent. A durable repair may be obtained by suturing the defect and adding a mesh buttress. Patient consent has been obtained. Authors have received and archived patient consent for video recording/publication of the procedure. There are no conflict of interests associated with this video in terms of commercial or financial interests. Runtime of video: 5 mins 42 secs
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