• Kimon Bekelis, Dan Gottlieb, Yin Su, Nicos Labropoulos, Stavropoula Tjoumakaris, Pascal Jabbour, and Todd A MacKenzie.
• Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire; The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, New Hampshire. Electronic address: kbekelis@gmail.com.
• World Neurosurg. 2016 Nov 1; 95: 542547.e1542-547.e1.

BackgroundThe impact of early physician follow-up on out-of-hospital outcomes after cerebral aneurysm treatment has not been studied previously. We investigated the association of early physician follow-up (within 30 days of discharge) with mortality and readmissions for elderly patients undergoing treatment for cerebral aneurysms.MethodsWe performed a cohort study of 100% of Medicare fee-for-service claims data for elderly patients who underwent treatment for cerebral aneurysms from 2007 to 2012. To control for confounding, we used propensity score conditioning and inverse probability weighting, with mixed effects to account for clustering at the Hospital Referral Region level.ResultsOf 8703 patients presenting with unruptured aneurysms, 5673 (65.2%) had early physician follow-up, and 3030 (34.8%) did not. Of 3211 patients with subarachnoid hemorrhage, 1504 (46.8%) had early physician follow-up, and 1707 (53.2%) did not. Propensity score-adjusted analysis demonstrated that patients with unruptured aneurysms who visited a physician within 30 days of discharge had lower 3-month mortality (odds ratio [OR] 0.52; 95% confidence interval [95% CI] 0.36-0.74) but a greater rate of 90-day readmissions (OR 1.14; 95% CI 1.03-1.28). Similarly, early follow-up was associated with lower 3-month mortality (OR, 0.33; 95% CI, 0.24-0.46), and a greater rate of 90-day readmissions (OR 1.79; 95% CI 1.02-3.14) for patients presenting with subarachnoid hemorrhage.ConclusionsIn a cohort of Medicare patients undergoing treatment for cerebral aneurysms, we identified an association of early physician follow-up with decreased short-term post-discharge mortality, but increased 90-day readmissions. More studies on the impact of strengthening the post-discharge network on the outcomes of this population are warranted.Copyright © 2016 Elsevier Inc. All rights reserved.

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