Serious adverse events following Normal Pressure Hydrocephalus surgery

Clinical Neurology and Neurosurgery
Vikas KotagalJason A Heth

Abstract

Recent Normal Pressure Hydrocephalus (NPH) practice guidelines describe a serious adverse event (SAE) rate following surgery of 11%. We conducted a retrospective review of 162 consecutive patients who have undergone work-up at our center's multidisciplinary NPH clinic over a 47 month time period (2/2014-12/2017). Of these, 22 ultimately underwent neurosurgical ventricular shunt surgery as treatment for NPH. Clinical records were reviewed for SAEs categorized as possibly/probably/definitely related to NPH surgery. In 10/22 (45.5%) operated subjects, there were 11 qualifying SAEs over this 3-year period: 1 central nervous system infections, 4 subdural hematomas, 2 seizures resulting in hospitalization, 1 catheter malfunction, 2 perioperative AEs, and 1 death of uncertain cause. Eight SAEs were coded as probably/definitely related. Six occurred >3 months from the time of surgery. SAEs following NPH surgery are common. Additional studies are needed to determine the long-term safety of NPH surgery in older adults.

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