Amir A Ghaferi

Summary

Affiliation: University of Michigan
Country: USA

Publications

  1. ncbi request reprint Complications, failure to rescue, and mortality with major inpatient surgery in medicare patients
    Amir A Ghaferi
    Department of Surgery, Michigan Surgical Collaborative for Outcomes Research and Evaluation M SCORE, University of Michigan, Ann Arbor, MI 48104, USA
    Ann Surg 250:1029-34. 2009
  2. doi request reprint Hospital volume and failure to rescue with high-risk surgery
    Amir A Ghaferi
    Department of Surgery, Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor, MI 48109, USA
    Med Care 49:1076-81. 2011
  3. doi request reprint Hospital characteristics associated with failure to rescue from complications after pancreatectomy
    Amir A Ghaferi
    Michigan Surgical Collaborative for Outcomes Research and Evaluation M SCORE, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
    J Am Coll Surg 211:325-30. 2010
  4. pmc Bending the cost curve in the United States: the role of comparative effectiveness research
    Amir A Ghaferi
    Department of Surgery, University of Michigan, 2207 Taubman Center, 1500 E, Medical Center Drive, Ann Arbor, Michigan 48109 0432, USA
    Crit Care 14:168. 2010
  5. doi request reprint Adverse outcomes in patients with chronic liver disease undergoing colorectal surgery
    Amir A Ghaferi
    Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
    Ann Surg 252:345-50. 2010
  6. doi request reprint Does voluntary reporting bias hospital quality rankings?
    Amir A Ghaferi
    Michigan Surgical Collaborative for Outcomes Research and Evaluation, Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109 0432, USA
    J Surg Res 161:190-4. 2010
  7. doi request reprint Variation in hospital mortality associated with inpatient surgery
    Amir A Ghaferi
    Michigan Surgical Collaborative for Outcomes Research and Evaluation, The Department of Surgery, University of Michigan, Ann Arbor 48104, USA
    N Engl J Med 361:1368-75. 2009
  8. doi request reprint Racial/ethnic disparities in access to care and survival for patients with early-stage hepatocellular carcinoma
    Amit K Mathur
    Department of Surgery, University of Michigan, Ann Arbor, 48109, USA
    Arch Surg 145:1158-63. 2010
  9. doi request reprint Evaluating popular media and internet-based hospital quality ratings for cancer surgery
    Nicholas H Osborne
    Michigan Surgical Collaborative for Outcomes Research and Evaluation, Department of Surgery, University of Michigan, Ann Arbor, USA
    Arch Surg 146:600-4. 2011
  10. doi request reprint Explaining racial disparities in outcomes after cardiac surgery: the role of hospital quality
    Govind Rangrass
    Center for Healthcare Outcomes and Policy, Department of Surgery, University of Michigan, Ann Arbor
    JAMA Surg 149:223-7. 2014

Collaborators

Detail Information

Publications35

  1. ncbi request reprint Complications, failure to rescue, and mortality with major inpatient surgery in medicare patients
    Amir A Ghaferi
    Department of Surgery, Michigan Surgical Collaborative for Outcomes Research and Evaluation M SCORE, University of Michigan, Ann Arbor, MI 48104, USA
    Ann Surg 250:1029-34. 2009
    ..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)...
  2. doi request reprint Hospital volume and failure to rescue with high-risk surgery
    Amir A Ghaferi
    Department of Surgery, Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor, MI 48109, USA
    Med Care 49:1076-81. 2011
    ..We sought to determine whether increased mortality at low-volume centers was due to higher complication rates or less success in rescuing patients from complications...
  3. doi request reprint Hospital characteristics associated with failure to rescue from complications after pancreatectomy
    Amir A Ghaferi
    Michigan Surgical Collaborative for Outcomes Research and Evaluation M SCORE, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
    J Am Coll Surg 211:325-30. 2010
    ..In this study, we sought to better understand the hospital characteristics that may explain failure to rescue...
  4. pmc Bending the cost curve in the United States: the role of comparative effectiveness research
    Amir A Ghaferi
    Department of Surgery, University of Michigan, 2207 Taubman Center, 1500 E, Medical Center Drive, Ann Arbor, Michigan 48109 0432, USA
    Crit Care 14:168. 2010
    ..The exact definition of this phrase, however, remains elusive. In order to affect change in the cost and quality of healthcare, the importance of comparative effectiveness research must be recognized...
  5. doi request reprint Adverse outcomes in patients with chronic liver disease undergoing colorectal surgery
    Amir A Ghaferi
    Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
    Ann Surg 252:345-50. 2010
    ..We sought to use a multi-institutional, prospective, clinical database to better understand adverse outcomes in chronic liver disease (CLD) patients undergoing colorectal surgery...
  6. doi request reprint Does voluntary reporting bias hospital quality rankings?
    Amir A Ghaferi
    Michigan Surgical Collaborative for Outcomes Research and Evaluation, Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109 0432, USA
    J Surg Res 161:190-4. 2010
    ..Critics argue that voluntary reporting leads to over-representation of high quality hospitals...
  7. doi request reprint Variation in hospital mortality associated with inpatient surgery
    Amir A Ghaferi
    Michigan Surgical Collaborative for Outcomes Research and Evaluation, The Department of Surgery, University of Michigan, Ann Arbor 48104, USA
    N Engl J Med 361:1368-75. 2009
    ..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...
  8. doi request reprint Racial/ethnic disparities in access to care and survival for patients with early-stage hepatocellular carcinoma
    Amit K Mathur
    Department of Surgery, University of Michigan, Ann Arbor, 48109, USA
    Arch Surg 145:1158-63. 2010
    ..To determine whether controlling for differences in the use of invasive therapy affects racial/ethnic differences in survival of early-stage hepatocellular carcinoma (HCC)...
  9. doi request reprint Evaluating popular media and internet-based hospital quality ratings for cancer surgery
    Nicholas H Osborne
    Michigan Surgical Collaborative for Outcomes Research and Evaluation, Department of Surgery, University of Michigan, Ann Arbor, USA
    Arch Surg 146:600-4. 2011
    ..We sought to determine whether "best hospitals," as defined by the US News & World Report or HealthGrades, have lower mortality rates than all other American hospitals for cancer surgery...
  10. doi request reprint Explaining racial disparities in outcomes after cardiac surgery: the role of hospital quality
    Govind Rangrass
    Center for Healthcare Outcomes and Policy, Department of Surgery, University of Michigan, Ann Arbor
    JAMA Surg 149:223-7. 2014
    ..We have yet to fully understand how care at high-mortality, low-quality hospitals contributes to racial disparities in surgical outcomes...
  11. doi request reprint Reliability adjustment for reporting hospital outcomes with surgery
    Justin B Dimick
    Center for Healthcare Outcomes and Policy and the Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
    Ann Surg 255:703-7. 2012
    ..We sought to evaluate its impact on hospital outcomes assessed with the American College of Surgeons' National Surgical Quality Improvement Program (ACS-NSQIP)...
  12. pmc Body mass index and adverse perioperative outcomes following hepatic resection
    Amit K Mathur
    Division of Transplantation, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
    J Gastrointest Surg 14:1285-91. 2010
    ..The effect of obesity on perioperative outcomes following hepatic resection is not clearly defined. We sought to understand the implications of obesity on post-hepatectomy outcomes in a nationally represented cohort of patients...
  13. doi request reprint Failure to rescue and mortality following repair of abdominal aortic aneurysm
    Seth A Waits
    Department of Surgery, University of Michigan, Ann Arbor, Mich
    J Vasc Surg 59:909-914.e1. 2014
    ..We sought to examine the relative contribution of severe complications and FTR to variations in mortality rate...
  14. pmc Understanding the volume-outcome effect in cardiovascular surgery: the role of failure to rescue
    Andrew A Gonzalez
    Department of Surgery, University of Illinois Hospital and Health Sciences System, Chicago2Center for Healthcare Outcomes and Policy, Department of Surgery, University of Michigan, Ann Arbor
    JAMA Surg 149:119-23. 2014
    ..Reducing mortality after major postoperative complications may represent one point along the continuum of patient care that could significantly affect overall hospital mortality...
  15. doi request reprint Influence of body mass index on complications and oncologic outcomes following hepatectomy for malignancy
    Amit K Mathur
    Division of Transplantation, Department of Surgery, University of Michigan, 2226 Taubman Center, 1500 E Medical Center Drive, Ann Arbor, MI 48109 0331, USA
    J Gastrointest Surg 14:849-57. 2010
    ..Following hepatectomy for malignancy, the effect of body mass index (BMI) on hepatic and oncologic outcomes is unknown...
  16. pmc Improving mortality following emergent surgery in older patients requires focus on complication rescue
    Kyle H Sheetz
    From the Department of Surgery, University of Michigan, Ann Arbor
    Ann Surg 258:614-7; discussion 617-8. 2013
    ..To determine whether a hospital's ability to rescue patients from major complications underlies variation in outcomes for elderly patients undergoing emergent surgery...
  17. doi request reprint Improving the care of elderly adults undergoing surgery in Michigan
    Kyle H Sheetz
    Academic Surgery Development Program, Department of Surgery, School of Medicine, University of Michigan, Ann Arbor, Michigan
    J Am Geriatr Soc 62:352-7. 2014
    ..To determine whether failure to rescue, as a driver of mortality, can be used to identify which hospitals attenuate the specific risks inherent to elderly adults undergoing surgery...
  18. pmc The importance of the first complication: understanding failure to rescue after emergent surgery in the elderly
    Kyle H Sheetz
    Center for Healthcare Outcomes and Policy, Department of Surgery, University of Michigan, Ann Arbor, MI Electronic address
    J Am Coll Surg 219:365-70. 2014
    ..We hypothesize that failure to rescue after certain types of complications underlies the disproportionately poor outcomes observed in elderly patients...
  19. doi request reprint Variation in mortality after high-risk cancer surgery: failure to rescue
    Amir A Ghaferi
    Center for Healthcare Outcomes and Policy, Department of Surgery, University of Michigan, 2800 Plymouth Road, Building 520, Room 3144, Ann Arbor, MI 48109, USA
    Surg Oncol Clin N Am 21:389-95, vii. 2012
    ..There is a growing body of evidence suggesting the importance of reducing mortality rates after major complications as a means to reducing the disparate mortality rates with oncologic surgery...
  20. pmc Reliability of superficial surgical site infections as a hospital quality measure
    Lillian S Kao
    Center for Surgical Trials and Evidence Based Practice C STEP, Department of Surgery, University of Texas Health Science Center at Houston, Houston, TX 77026, USA
    J Am Coll Surg 213:231-5. 2011
    ..We used the American College of Surgeons National Surgical Quality Improvement Program data to determine the reliability of SSI rates as a measure of hospital performance and to evaluate the effect of hospital caseload on reliability...
  21. pmc Surgical skill in bariatric surgery: Does skill in one procedure predict outcomes for another?
    Oliver A Varban
    Department of Surgery, University of Michigan Health Systems, Ann Arbor, MI Electronic address
    Surgery 160:1172-1181. 2016
    ..Whether skill for one bariatric procedure can predict outcomes for another related procedure is unknown...
  22. doi request reprint Variation in Medicare Expenditures for Treating Perioperative Complications: The Cost of Rescue
    Jason C Pradarelli
    Department of Surgery, Brigham and Women s Hospital, Boston, Massachussetts2Center for Healthcare Outcomes and Policy, Ann Arbor, Michigan
    JAMA Surg . 2016
    ..Treating surgical complications presents a major challenge for hospitals striving to deliver high-quality care while reducing costs. Costs associated with rescuing patients from perioperative complications are poorly characterized...
  23. pmc Mortality Among Older Adults Before Versus After Hospital Transition to Intensivist Staffing
    Myura Nagendran
    Imperial College London, London, UK Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor, MI
    Med Care 54:67-73. 2016
    ..A large body of research suggests that hospitals with intensive care units staffed by board-certified intensivists have lower mortality rates than those that do not...
  24. pmc Time-to-readmission and Mortality After High-risk Surgery
    Andrew A Gonzalez
    Center for Healthcare Outcomes and Policy CHOP and Department of Surgery, University of Michigan, Ann Arbor, MI Department of Surgery, University of Illinois Hospital and Health Sciences System, Chicago, IL and University of Illinois at Urbana Champaign, Urbana Champaign, IL
    Ann Surg 262:53-9. 2015
    ..To determine if mortality varies by time-to-readmission (TTR)...
  25. pmc Hospital volume and operative mortality in the modern era
    Bradley N Reames
    From the Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor, MI
    Ann Surg 260:244-51. 2014
    ..To determine whether the relationship between hospital volume and mortality has changed over time...
  26. pmc Colon cancer operations at high- and low-mortality hospitals
    Mark A Healy
    Department of Surgery, University of Michigan Health System, Ann Arbor, MI Electronic address
    Surgery 160:359-65. 2016
    ..While higher rates of mortality are commonly ascribed to high-risk resections, the impact on more common operations is unclear. We sought to evaluate causes of mortality following colon cancer operations across hospitals...
  27. pmc Impact of Hospital Characteristics on Failure to Rescue Following Major Surgery
    Kyle H Sheetz
    Department of Surgery, Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor, MI
    Ann Surg 263:692-7. 2016
    ..To determine the effect of hospital characteristics on failure to rescue after high-risk surgery in Medicare beneficiaries...
  28. pmc Using same-hospital readmission rates to estimate all-hospital readmission rates
    Andrew A Gonzalez
    Center for Healthcare Outcomes and Policy CHOP, University of Michigan, Ann Arbor, MI Department of Surgery, University of Illinois Hospital and Health Sciences System, Chicago, IL Electronic address
    J Am Coll Surg 219:656-63. 2014
    ..We sought to determine the extent to which same-hospital readmission rates can be used to estimate all-hospital readmission rates after major surgery...
  29. doi request reprint The association between hospital care intensity and surgical outcomes in medicare patients
    Kyle H Sheetz
    Department of Surgery, University of Michigan, Ann Arbor
    JAMA Surg 149:1254-9. 2014
    ..Hospitals' care intensity varies widely across the United States. Payers and policy makers have become focused on promoting quality, low-cost, efficient health care...
  30. doi request reprint Do popular media and internet-based hospital quality ratings identify hospitals with better cardiovascular surgery outcomes?
    Nicholas H Osborne
    Michigan Surgical Collaborative for Outcomes Research and Evaluation, Department of Surgery, University of Michigan, Ann Arbor, MI 48109 5604, USA
    J Am Coll Surg 210:87-92. 2010
    ..It is unclear whether selecting highly rated hospitals will improve outcomes after cardiovascular surgery procedures...
  31. ncbi request reprint Hospital Quality and Medicare Expenditures for Bariatric Surgery in the United States
    Andrew M Ibrahim
    Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor, MI
    Ann Surg . 2016
    ..To examine the relationship between hospital outcomes and expenditures in patients undergoing bariatric surgery in the United States...
  32. pmc Hospital variation in perioperative complications for laparoscopic sleeve gastrectomy in Michigan
    Jason C Pradarelli
    Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor, MI University of Michigan Medical School, University of Michigan, Ann Arbor, MI Electronic address
    Surgery 159:1113-20. 2016
    ..This study aimed to assess rates of perioperative complications for laparoscopic sleeve gastrectomy across hospitals and in relation to procedure volume within the Michigan Bariatric Surgery Collaborative...
  33. pmc Socioeconomic disparities in mortality after cancer surgery: failure to rescue
    Bradley N Reames
    Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor
    JAMA Surg 149:475-81. 2014
    ..Disparities in operative mortality due to socioeconomic status (SES) have been consistently demonstrated, but the mechanisms underlying this disparity are not well understood...
  34. doi request reprint Prognostic significance of a positive nonsentinel lymph node in cutaneous melanoma
    Amir A Ghaferi
    Department of Surgery, University of Michigan Health System, Ann Arbor, MI, USA
    Ann Surg Oncol 16:2978-84. 2009
    ..There may be additional prognostic significance to melanoma spreading from the SLN to nonsentinel lymph nodes (NSLN). We examined the implications of a positive NSLN for overall and distant disease-free survival...
  35. ncbi request reprint Pancreatic VIPomas: subject review and one institutional experience
    Amir A Ghaferi
    Department of Surgery, Johns Hopkins Medical Institutions, Baltimore, MD, USA
    J Gastrointest Surg 12:382-93. 2008
    ..Extended, meaningful survival can be achieved for VIPoma patients, combining an aggressive surgical approach with additional strategies for treatment of unresected disease...