The rate of [[complication]]s or [[readmission]] within 30 d of [[ventricular shunt]]ing for [[NPH]] is 25.15%. Preoperative comorbidities of [[myocardial infarction]] within 1 yr, [[cerebrovascular disease]], and moderate/severe [[renal disease]] are independent risk factors for poor outcomes
((Nadel JL, Wilkinson DA, Linzey JR, Maher CO, Kotagal V, Heth JA. Thirty-Day Hospital Readmission and Surgical Complication Rates for Shunting in Normal Pressure Hydrocephalus: A Large National Database Analysis. Neurosurgery. 2020 Jun 1;86(6):843-850. doi: 10.1093/neuros/nyz299. PMID: 31420654.))