Area of Focus in 3D Volumetry and Botulinum Toxin A Injection for Giant Diaphragmatic Hernia with Loss of Domain: A Case Report with Video Illustration.

Background: Chronic giant diaphragmatic hernia is a severe disease with challenging diagnosis and treatment. Given the risk of loss of domain, the use of botulinum toxin A is an option but has been minimally studied in diaphragmatic hernia surgery. Case Report: We present a case of a giant diaphragmatic hernia in a 66-years-old patient who showed a 12-year history of progressive chronic respiratory insufficiency. There were not notion of traumatic injuries. The CT-scan showed a giant diaphragmatic hernia with herniation of small bowel, right liver, omentum and transverse colon. Method: We assessed the risk of loss of domain using a 3D volumetry based on the Sabbagh score and decided to use Botox injection before laparoscopic reduction of the hernia due to the high risk of complications related to the loss of domain. A computed tomography was performed 24 months after surgery and showed no evidence of recurrence. The patient presented an excellent functional result with a normal physical activity. Conclusion: This report is among the first to highlight the utility of 3D reconstruction in assessing the risk associated with loss of domain and in preparing the abdominal wall with botulinum toxin A for diaphragmatic hernia repair.