Rapid catastrophic neurologic deterioration following large Lumboperitoneal shunt adjustment in a patient with IIH
When managing patients with LP shunts presenting with acute neurological decline, maintain a high index of suspicion for iatrogenic or mechanical issues related to valve programming or adjustment, even if initial imaging is normal. Given the severity seen in this case, prompt consultation with neurosurgery is warranted rather than waiting for overt signs of mass effect. Remember that the complication spectrum here differs from standard VP shunt management.
This report addresses the growing use of lumboperitoneal (LP) shunts for managing idiopathic intracranial hypertension (IIH), noting that the complication profile associated with these devices might be less familiar to emergency physicians than those seen with ventriculoperitoneal shunts. The authors present a concerning case where a patient suffered fatal cerebral and cerebellar herniation following a routine adjustment of a large programmable LP shunt valve, even when initial computed tomography scans appeared unremarkable. This emphasizes that neurologic deterioration can occur acutely after minor adjustments to the shunt system. It serves as an important reminder that vigilance is required for these specific hardware-related complications.