Baseline Characteristics and Readmissions after Cerebral Venous Sinus Thrombosis in a Nationally Representative Database.

Background: There are limited epidemiologic data on cerebral venous sinus thrombosis (CVST). We aim to summarize baseline characteristics and outcomes using a large nationally representative administrative database.

Methods: Using the 2013 Nationwide Readmissions Database, we used validated International Classification of Disease, Ninth Revision codes to identify baseline characteristics of patients admitted with CVST. We calculated readmission rates (per 100,000 index hospitalizations) for neurological complications. Multivariable Poisson regression yielded rate ratios (RR) of associations between index admission variables and all-cause readmission up to 1 year.

Results: Among 2,105 patients with index admission for CVST, mean age was 46.8 (SD 18.4); 65.2% were female, and 6.1% were pregnant. Hemorrhagic stroke (15.6%) was more common than ischemic stroke (10.7%), seizure occurred in 16.3, and 3.7% of patients died during index hospitalization. The 90-day readmission rate (per 100,000 index CVST hospitalizations) was the highest for CVST (1,447) and ischemic stroke (755). Diabetes (RR 1.10, 95% CI 1.002-1.22), cancer (1.23, 1.09-1.39), insurance status (0.92, 0.83-0.97 for Medicare/private insurance vs. others), and discharge home (RR 0.89, 95% CI 0.85-0.99) were associated with increased readmission rate.

Conclusions: We provide baseline characteristics and readmission rates after CVST over a 1-year period. In-hospital mortality rate and association with pregnancy were lower than previously observed.