Author
Amir A. Ghaferi
Other affiliations: Johns Hopkins University, Yale University, United States Department of Veterans Affairs
Bio: Amir A. Ghaferi is an academic researcher from University of Michigan. The author has contributed to research in topics: Sleeve gastrectomy & Medicine. The author has an hindex of 34, co-authored 157 publications receiving 5954 citations. Previous affiliations of Amir A. Ghaferi include Johns Hopkins University & Yale University.
Topics: Sleeve gastrectomy, Medicine, Weight loss, Perioperative, MEDLINE
Papers published on a yearly basis
Papers
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TL;DR: Reducing mortality associated with inpatient surgery will require greater attention to the timely recognition and management of complications once they occur, and differences in rates of death among patients with major complications were also the primary determinant of variation in overall mortality with individual operations.
Abstract: Background Hospital mortality that is associated with inpatient surgery varies widely. Reducing rates of postoperative complications, the current focus of payers and regulators, may be one approach to reducing mortality. However, effective management of complications once they have occurred may be equally important. Methods We studied 84,730 patients who had undergone inpatient general and vascular surgery from 2005 through 2007, using data from the American College of Surgeons National Surgical Quality Improvement Program. We first ranked hospitals according to their risk-adjusted overall rate of death and divided them into five groups. For hospitals in each overall mortality quintile, we then assessed the incidence of overall and major complications and the rate of death among patients with major complications. Results Rates of death varied widely across hospital quintiles, from 3.5% in very-low-mortality hospitals to 6.9% in very-high-mortality hospitals. Hospitals with either very high mortality or ve...
1,251 citations
TL;DR: Reducing variations in mortality will require strategies to improve the ability of high-mortality hospitals to manage postoperative complications, as found in analyses with individual operations and specific complications.
Abstract: Objective:We sought to determine whether hospital variations in surgical mortality were due to differences in complication rates or failure to rescue rates (ie, case-fatality rates in patients with a complication).Background:Wide variations in mortality after major surgery are becoming increasingly
689 citations
TL;DR: Differences in mortality between high and low-volume hospitals are not associated with large differences in complication rates, and differences seem to be associated with the ability of a hospital to effectively rescue patients from complications.
Abstract: Introduction:Although the relationship between surgical volume and mortality is well established, the mechanisms underlying these associations remain uncertain. We sought to determine whether increased mortality at low-volume centers was due to higher complication rates or less success in rescuing p
434 citations
TL;DR: Despite recent improvements in surgical safety, the strong inverse relationship between hospital volume and mortality persists in the modern era.
Abstract: Objective:To determine whether the relationship between hospital volume and mortality has changed over time.Background:It is generally accepted that hospital volume is associated with mortality in high-risk procedures. However, as surgical safety has improved over the last decade, recent evidence ha
370 citations
TL;DR: The study shows that chronically increased hepatic venous pressure from the Fontan procedure might lead to chronic passive congestion, cardiac cirrhosis, hepatic adenoma, and hepatocellular carcinoma.
308 citations
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TL;DR: Implementation of the checklist was associated with concomitant reductions in the rates of death and complications among patients at least 16 years of age who were undergoing noncardiac surgery in a diverse group of hospitals.
Abstract: The rate of death was 1.5% before the checklist was introduced and declined to 0.8% afterward (P = 0.003). Inpatient complications occurred in 11.0% of patients at baseline and in 7.0% after introduction of the checklist (P<0.001). Conclusions Implementation of the checklist was associated with concomitant reductions in the rates of death and complications among patients at least 16 years of age who were undergoing noncardiac surgery in a diverse group of hospitals.
4,764 citations
TL;DR: Authors/Task Force Members: Franz-Josef Neumann* (ESC Chairperson) (Germany), Miguel Sousa-Uva* (EACTS Chair person) (Portugal), Anders Ahlsson (Sweden), Fernando Alfonso (Spain), Adrian P. Banning (UK), Umberto Benedetto (UK).
4,342 citations
TL;DR: Neumann et al. as discussed by the authors proposed a task force to evaluate the EACTS Review Co-ordinator's work on gender equality in the context of women's reproductive health.
Abstract: Authors/Task Force Members: Franz-Josef Neumann* (ESC Chairperson) (Germany), Miguel Sousa-Uva* (EACTS Chairperson) (Portugal), Anders Ahlsson (Sweden), Fernando Alfonso (Spain), Adrian P. Banning (UK), Umberto Benedetto (UK), Robert A. Byrne (Germany), Jean-Philippe Collet (France), Volkmar Falk (Germany), Stuart J. Head (The Netherlands), Peter Jüni (Canada), Adnan Kastrati (Germany), Akos Koller (Hungary), Steen D. Kristensen (Denmark), Josef Niebauer (Austria), Dimitrios J. Richter (Greece), Petar M. Seferovi c (Serbia), Dirk Sibbing (Germany), Giulio G. Stefanini (Italy), Stephan Windecker (Switzerland), Rashmi Yadav (UK), Michael O. Zembala (Poland) Document Reviewers: William Wijns (ESC Review Co-ordinator) (Ireland), David Glineur (EACTS Review Co-ordinator) (Canada), Victor Aboyans (France), Stephan Achenbach (Germany), Stefan Agewall (Norway), Felicita Andreotti (Italy), Emanuele Barbato (Italy), Andreas Baumbach (UK), James Brophy (Canada), Héctor Bueno (Spain), Patrick A. Calvert (UK), Davide Capodanno (Italy), Piroze M. Davierwala
3,879 citations
TL;DR: Medical error is not included on death certificates or in rankings of cause of death, but its contribution to mortality and call for better reporting are assessed.
Abstract: Medical error is not included on death certificates or in rankings of cause of death. Martin Makary and Michael Daniel assess its contribution to mortality and call for better reporting
2,343 citations
TL;DR: Editor's Choice – European Society for Vascular Surgery (ESVS) 2019 Clinical Practice Guidelines on the Management of Abdominal Aorto-iliac Artery Aneurysms.
1,493 citations