• Joseph F Baker, Shearwood McClelland, Breton G Line, Justin S Smith, Robert A Hart, Christopher P Ames, Chris Shaffrey, and Shay Bess.
• Department of Orthopaedic Surgery, Waikato Hospital, Hamilton, New Zealand. Electronic address: joseph.f.baker@gmail.com.
• World Neurosurg. 2017 Oct 1; 106: 470-476.

BackgroundPrevious reports suggest that patients with Parkinson disease (PD) have elevated rates of complications following spine surgery; however, these reports are limited by small patient series. In this study, we used the National Inpatient Sample (NIS) database to compare in-hospital complications following elective lumbar spine surgery in patients with a diagnosis of PD and patients without PD.MethodsThe NIS database was accessed to identify patients with PD and those without PD who underwent lumbar spine surgery. All patients identified had a diagnosis code consistent with degenerative lumbar spine pathology. The patients were evaluated for the presence or absence of PD and divided into 4 lumbar spine procedure groups: decompression alone, lateral fusion, posterior fusion, and anterior fusion technique. Propensity score matching (PSM) was performed for the PD versus non-PD patients in each procedure group to control for confounding demographic variables, and in-hospital complications were compared between the 2 groups.ResultsBetween 2001 and 2012, a total of 613,522 lumbar spine surgery patient episodes were identified, of which 4492 (0.7%) involved a diagnosis of PD. Following PSM for patient age, sex, and race, the patients with PD were at increased risk for acute postoperative hemorrhagic anemia, increased blood transfusion requirements, and increased genitourinary, neurologic, and cardiac complications compared with the patients without PD.ConclusionsPSM analysis of the NIS database demonstrated that patients with PD are at increased risk for acute in-hospital complications and greater blood transfusion requirements than those without PD. Surgeons should be aware of the increased risks and differing requirements when treating spinal pathology in patients with PD.Copyright © 2017 Elsevier Inc. All rights reserved.

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