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Nancy J. O. Birkmeyer
Researcher at University of Michigan
Publications - 85
Citations - 8860
Nancy J. O. Birkmeyer is an academic researcher from University of Michigan. The author has contributed to research in topics: Population & Aortic valve replacement. The author has an hindex of 44, co-authored 83 publications receiving 8067 citations. Previous affiliations of Nancy J. O. Birkmeyer include Dartmouth–Hitchcock Medical Center & Dartmouth College.
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Journal ArticleDOI
Surgical versus Nonsurgical Treatment for Lumbar Degenerative Spondylolisthesis
James Neil Weinstein,Jon D. Lurie,Tor D. Tosteson,Brett Hanscom,Anna N. A. Tosteson,Emily A. Blood,Nancy J. O. Birkmeyer,Alan S. Hilibrand,Harry N. Herkowitz,Frank P. Cammisa,Todd J. Albert,Sanford E. Emery,Lawrence G. Lenke,William A. Abdu,Michael Longley,Thomas J. Errico,Serena S. Hu +16 more
TL;DR: In nonrandomized as-treated comparisons with careful control for potentially confounding baseline factors, patients with degenerative spondylolisthesis and spinal stenosis treated surgically showed substantially greater improvement in pain and function during a period of 2 years than patients treated nonsurgically.
Journal ArticleDOI
Surgical compared with nonoperative treatment for lumbar degenerative spondylolisthesis. four-year results in the Spine Patient Outcomes Research Trial (SPORT) randomized and observational cohorts.
James Neil Weinstein,Jon D. Lurie,Tor D. Tosteson,Wenyan Zhao,Emily A. Blood,Anna N. A. Tosteson,Nancy J. O. Birkmeyer,Harry N. Herkowitz,Michael Longley,Lawrence G. Lenke,Sanford E. Emery,Serena S. Hu +11 more
TL;DR: Compared with patients who are treated nonoperatively, patients in whom degenerative spondylolisthesis and associated spinal stenosis are treated surgically maintain substantially greater pain relief and improvement in function for four years.
Journal ArticleDOI
Measuring the quality of surgical care: structure, process, or outcomes?
Journal ArticleDOI
Hospital Complication Rates With Bariatric Surgery in Michigan
Nancy J. O. Birkmeyer,Justin B. Dimick,David Share,Abdelkader A. Hawasli,Wayne J. English,Jeffrey A. Genaw,Jonathan F. Finks,Arthur M. Carlin,John D. Birkmeyer +8 more
TL;DR: The frequency ofserious complications among patients undergoing bariatric surgery in Michigan was relatively low and rates of serious complications are inversely associated with hospital and surgeon procedure volume, but unrelated to COE accreditation by professional organizations.
Journal ArticleDOI
Meta-Analysis Comparing the Effectiveness and Adverse Outcomes of Antifibrinolytic Agents in Cardiac Surgery
TL;DR: A meta-analysis to compare aprotinin, ϵ-aminocaproic acid, and tranexamic acid with placebo and head to head on 8 clinical outcomes found all antifibrinolytic agents were effective in reducing blood loss and transfusion.