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Cerebrospinal fluid (CSF) diversion for hydrocephalus via ventriculoperitoneal (VP) shunting is one of the most commonly performed neurosurgical procedures. Unfortunately, VP shunting also carries a high complication rate. While long-term complications of VP shunting are generally well-described, the literature on more acute, iatrogenic injury during shunt placement is essentially limited to easily identifiable intracranial bleeds. Herein is presented the first reported case of iatrogenic abdominal wall vessel injury as a consequence of blind distal VP shunt catheter placement causing a critical haemoperitoneum that necessitated multiple transfusions. Presentation and recognition of this bleed was delayed as it occurred over a number of days. Injury to the inferior epigastric artery, or potentially a distal branch of the superficial epigastric artery, is suspected to have occurred during either blind subcutaneous tunnelling of the shunt catheter passage or during penetration of the peritoneum. Haemoperitoneum as a potential complication of procedures involving manipulation or penetration of the abdominal wall (i.e. paracentesis) is well-described in the medical and general surgical literature, and ultrasound-guidance has been widely adopted to mitigate bleeding in these cases. Familiarity with intra-abdominal haemorrhage as a potential complication of VP shunting and an understanding of its presentation is critical for timely identification of this phenomenon. Furthermore, the use of real-time ultrasound-guidance for tunnelling and distal shunt catheter placement may decrease the incidence of intrabdominal complications after shunt placement more generally and should be considered an area of future study.

Iatrogenic haemoperitoneum requiring transfusion after ventriculoperitoneal shunt placement: case report