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Journal of Neurosurgical Sciences 2021 Nov 11

DOI: 10.23736/S0390-5616.21.05605-8

Copyright © 2021 EDIZIONI MINERVA MEDICA

lingua: Inglese

Readmissions in patients with Cerebral Cavernous Malformations (CCMs): a National Readmission Database (NRD) study

Akhil PADARTI 1, Amod AMRITPHALE 2, Javed K. ELIYAS 3, Daniele RIGAMONTI 4, Jun ZHANG 5

1 Department of Neurology, University of South Alabama, Mobile, AL, USA; 2 Department of Internal Medicine, University of South Alabama, Mobile, AL, USA; 3 Department of Neurosurgery and Radiology, University of New Mexico Health Science, Albuquerque, NM, USA; 4 Department of Neurosurgery, Johns Hopkins Medicine Institutions (JHMI), Baltimore, MD, USA; 5 Departments of Molecular & Translational Medicine (MTM), Texas Tech University Health Science Center El Paso (TTUHSCEP), El Paso, TX, USA



BACKGROUND: Cerebral cavernous malformations (CCMs) are microvascular CNS lesions prone to hemorrhage leading to neurological sequela such as stroke and seizure. A subset of CCM patients have aggressive disease leading to multiple bleeding events, likely resulting multiple hospitalizations. Hospital admission rates are an important metric that has direct financial impact on hospitals and an indicator of overall disease burden. Furthermore, analysis of hospital readmissions can lead to early identification of high-risk patients and provides insight into the pathogenesis of CCM lesions. The purpose of this study is to identify high risk CCM patients with increased all cause readmission and comorbidities associated with increased readmissions.
METHODS: All US hospital admissions due to CCMs were searched using the 2017 National Readmission Database (NRD). Patients with readmissions within 30 days of discharge from index hospitalization were identified and analyzed, relative to the remaining population.
RESULTS: Among all patients hospitalized for CCM, 14.9% (13.7-16.2%) required all cause readmission within 30 days. Multivariate logistical regression analysis showed that substance abuse (p=0.003), diabetes (p=0.018), gastrointestinal bleed (p=0.002), renal failure (p=0.027), and coronary artery disease (p=0.010) were predictive of all cause readmissions, while age group 65-74 (p=0.042), private insurance (p<0.001), and treatment at a metropolitan teaching institution (p=0.039) were protective. Approximately half of all readmissions are caused by neurological (33.9%) and infectious (14.6%) etiologies. The 30-day lesion bleeding rate after index hospitalization is 0.8% (0.5-1.2%).
CONCLUSIONS: All identified comorbidities associated with increased risks of readmission contribute to vascular stress, suggesting its role in lesion pathogenesis. This is the first and only study to analyze readmission metrics for CCMs in order to identify high risk patient factors to date.


KEY WORDS: Cerebral cavernous malformations; Hospital readmission rates; National readmission database; Lesion hemorrhage

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