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Featured researches published by Olubode A. Olufajo.


JAMA Surgery | 2016

Use of National Burden to Define Operative Emergency General Surgery.

John W. Scott; Olubode A. Olufajo; Gabriel Brat; John Rose; Cheryl K. Zogg; Adil H. Haider; Ali Salim; Joaquim M. Havens

IMPORTANCE Emergency general surgery (EGS) represents 11% of surgical admissions and 50% of surgical mortality in the United States. However, there is currently no established definition of the EGS procedures. OBJECTIVE To define a set of procedures accounting for at least 80% of the national burden of operative EGS. DESIGN, SETTING, AND PARTICIPANTS A retrospective review was conducted using data from the 2008-2011 National Inpatient Sample. Adults (age, ≥18 years) with primary EGS diagnoses consistent with the American Association for the Surgery of Trauma definition, admitted urgently or emergently, who underwent an operative procedure within 2 days of admission were included in the analyses. Procedures were ranked to account for national mortality and complication burden. Among ranked procedures, contributions to total EGS frequency, mortality, and hospital costs were assessed. The data query and analysis were performed between November 15, 2015, and February 16, 2016. MAIN OUTCOMES AND MEASURES Overall procedure frequency, in-hospital mortality, major complications, and inpatient costs calculated per 3-digit International Classification of Diseases, Ninth Revision, Clinical Modification procedure codes. RESULTS The study identified 421 476 patient encounters associated with operative EGS, weighted to represent 2.1 million nationally over the 4-year study period. The overall mortality rate was 1.23% (95% CI, 1.18%-1.28%), the complication rate was 15.0% (95% CI, 14.6%-15.3%), and mean cost per admission was


JAMA Surgery | 2016

Defining Rates and Risk Factors for Readmissions Following Emergency General Surgery

Joaquim M. Havens; Olubode A. Olufajo; Zara Cooper; Adil H. Haider; Adil A. Shah; Ali Salim

13 241 (95% CI,


American Journal of Surgery | 2016

The truth about trauma readmissions.

Olubode A. Olufajo; Zara Cooper; Brian K. Yorkgitis; Peter A. Najjar; David Metcalfe; Joaquim M. Havens; Reza Askari; Gabriel Brat; Adil H. Haider; Ali Salim

12 957-


Journal of Parenteral and Enteral Nutrition | 2016

Malnutrition at Intensive Care Unit Admission Predicts Mortality in Emergency General Surgery Patients.

Joaquim M. Havens; Alexandra B. Columbus; Anupamaa Seshadri; Olubode A. Olufajo; Kris M. Mogensen; James D. Rawn; Ali Salim; Kenneth B. Christopher

13 525). After ranking the 35 procedure groups by contribution to EGS mortality and morbidity burden, a final set of 7 operative EGS procedures were identified, which collectively accounted for 80.0% of procedures, 80.3% of deaths, 78.9% of complications, and 80.2% of inpatient costs nationwide. These 7 procedures included partial colectomy, small-bowel resection, cholecystectomy, operative management of peptic ulcer disease, lysis of peritoneal adhesions, appendectomy, and laparotomy. CONCLUSIONS AND RELEVANCE Only 7 procedures account for most admissions, deaths, complications, and inpatient costs attributable to the 512 079 EGS procedures performed in the United States each year. National quality benchmarks and cost reduction efforts should focus on these common, complicated, and costly EGS procedures.


BMJ Open | 2016

Hospital case volume and outcomes for proximal femoral fractures in the USA: an observational study.

David Metcalfe; Ali Salim; Olubode A. Olufajo; Belinda J. Gabbe; Cheryl K. Zogg; Mitchel B. Harris; Daniel C. Perry; Matthew L. Costa

IMPORTANCE Hospital readmission rates following surgery are increasingly being used as a marker of quality of care and are used in pay-for-performance metrics. To our knowledge, comprehensive data on readmissions to the initial hospital or a different hospital after emergency general surgery (EGS) procedures do not exist. OBJECTIVE To define readmission rates and identify risk factors for readmission after common EGS procedures. DESIGN, SETTING, AND PARTICIPANTS Patients undergoing EGS, as defined by the American Association for the Surgery of Trauma, were identified in the California State Inpatient Database (2007-2011) on January 15, 2015. Patients were 18 years and older. We identified the 5 most commonly performed EGS procedures in each of 11 EGS diagnosis groups. Patient demographics (sex, age, race/ethnicity, and insurance type) as well as Charlson Comorbidity Index score, length of stay, complications, and discharge disposition were collected. Factors associated with readmission were determined using multivariate logistic regression models analysis. MAIN OUTCOMES AND MEASURES Thirty-day hospital readmission. RESULTS Among 177,511 patients meeting inclusion criteria, 57.1% were white, 48.8% were privately insured, and most were 45 years and older (51.3%). Laparoscopic appendectomy (35.2%) and laparoscopic cholecystectomy (19.3%) were the most common procedures. The overall 30-day readmission rate was 5.91%. Readmission rates ranged from 4.1% (upper gastrointestinal) to 16.8% (cardiothoracic). Of readmitted patients, 16.8% were readmitted at a different hospital. Predictors of readmission included Charlson Comorbidity Index score of 2 or greater (adjusted odds ratio: 2.26 [95% CI, 2.14-2.39]), leaving against medical advice (adjusted odds ratio: 2.24 [95% CI, 1.89-2.66]), and public insurance (adjusted odds ratio: 1.55 [95% CI, 1.47-1.64]). The most common reasons for readmission were surgical site infections (16.9%), gastrointestinal complications (11.3%), and pulmonary complications (3.6%). CONCLUSIONS AND RELEVANCE Readmission after EGS procedures is common and varies widely depending on patient factors and diagnosis categories. One in 5 readmitted patients will go to a different hospital, causing fragmentation of care and potentially obscuring the utility of readmission as a quality metric. Assisting socially vulnerable patients and reducing postoperative complications, including infections, are targets to reduce readmissions.


Journal of Trauma-injury Infection and Critical Care | 2015

Mortality after emergency surgery continues to rise after discharge in the elderly: Predictors of 1-year mortality.

Erika L. Rangel; Zara Cooper; Olubode A. Olufajo; Gally Reznor; Lipsitz; Ali Salim; Kwakye G; Calahan C; Sarhan M; Hanna Js

BACKGROUND There is a paucity of data on the causes and associated patient factors for unplanned readmissions among trauma patients. METHODS We examined patients admitted for traumatic injuries between 2007 and 2011 in the California State Inpatient Database. Using chi-square tests and multivariate logistic regression models, we determined rates, reasons, locations, and patient factors associated with 30-day readmissions. RESULTS Among 252,752 trauma discharges, the overall readmission rate was 7.56%, with 36% of readmissions occurring at a hospital different from the hospital of initial admission. Predictors of readmissions included being discharged against medical advice (odds ratio [OR]: 2.56 [2.35 to 2.76]); Charlson scores ≥2 (OR: 2.00 [1.91 to 2.10]); and age ≥45 years (OR: 1.29 [1.25 to 1.33]). Major reasons for readmissions were musculoskeletal complaints (22.29%), psychiatric conditions (9.40%), and surgical infections (6.69%). CONCLUSIONS Health and social vulnerabilities influence readmission among trauma patients, with many readmitted at other hospitals. Targeted interventions among high-risk patients may reduce readmissions after traumatic injuries.


JAMA Surgery | 2016

Implications of the patient protection and affordable care act on insurance coverage and rehabilitation use among young adult trauma patients

Cheryl K. Zogg; Fernando Payró Chew; John W. Scott; Lindsey L. Wolf; Thomas C. Tsai; Peter A. Najjar; Olubode A. Olufajo; Eric B. Schneider; Elliott R. Haut; Adil H. Haider; Joseph K. Canner

BACKGROUND Emergency general surgery (EGS) patients are at an increased risk for morbidity and mortality compared with non-EGS patients. Limited information exists regarding the contribution of malnutrition to the outcome of critically ill patients who undergo EGS. We hypothesized that malnutrition would be associated with increased risk of 90-day all-cause mortality following intensive care unit (ICU) admission in EGS patients. MATERIALS AND METHODS We performed an observational study of patients treated in medical and surgical ICUs at a single institution in Boston. We included patients who underwent an EGS procedure and received critical care between 2005 and 2011. The exposure of interest, malnutrition, was determined by a registered dietitians formal assessment within 48 hours of ICU admission. The primary outcome was all-cause 90-day mortality. Adjusted odds ratios were estimated by multivariable logistic regression models. RESULTS The cohort consisted of 1361 patients. Sixty percent had nonspecific malnutrition, 8% had protein-energy malnutrition, and 32% were without malnutrition. The 30-day readmission rate was 18.9%. Mortality in-hospital and at 90 days was 10.1% and 17.9%, respectively. Patients with nonspecific malnutrition had a 1.5-fold increased odds of 90-day mortality (adjusted odds ratio [OR], 1.51; 95% confidence interval [CI], 1.09-5.04; P = .009) and patients with protein-energy malnutrition had a 3.1-fold increased odds of 90-day mortality (adjusted OR, 3.06; 95% CI, 1.89-4.92; P < .001) compared with patients without malnutrition. CONCLUSION In critically ill patients who undergo EGS, malnutrition at ICU admission is predictive of adverse outcomes. In survivors of hospitalization, malnutrition at ICU admission is associated with increases in readmission and mortality.


Plastic and Reconstructive Surgery | 2016

Inequalities in Specialist Hand Surgeon Distribution across the United States.

Arturo J. Rios-Diaz; David Metcalfe; Mansher Singh; Cheryl K. Zogg; Olubode A. Olufajo; Margarita S. Ramos; Edward J. Caterson; Simon G. Talbot

Objective To explore whether older adults with isolated hip fractures benefit from treatment in high-volume hospitals. Design Population-based observational study. Setting All acute hospitals in California, USA. Participants All individuals aged ≥65 that underwent an operation for an isolated hip fracture in California between 2007 and 2011. Patients transferred between hospitals were excluded. Primary and secondary outcomes Quality indicators (time to surgery) and patient outcomes (length of stay, in-hospital mortality, unplanned 30-day readmission, and selected complications). Results 91 401 individuals satisfied the inclusion criteria. Time to operation and length of stay were significantly prolonged in low-volume hospitals, by 1.96 (95% CI 1.20 to 2.73) and 0.70 (0.38 to 1.03) days, respectively. However, there were no differences in clinical outcomes, including in-hospital mortality, 30-day re-admission, and rates of pneumonia, pressure ulcers, and venous thromboembolism. Conclusions These data suggest that there is no patient safety imperative to limit hip fracture care to high-volume hospitals.


Medical Care | 2016

Are Older Adults With Hip Fractures Disadvantaged in Level 1 Trauma Centers

David Metcalfe; Olubode A. Olufajo; Cheryl K. Zogg; Jonathan D. Gates; Michael J. Weaver; Mitchel B. Harris; Arturo J. Rios-Diaz; Adil H. Haider; Ali Salim

BACKGROUND It is known that emergency surgery in the elderly is associated with high short-term mortality, but longer-term outcomes are not well described. We hypothesized that 30-day mortality may underestimate the true operative mortality experienced in this cohort. The purposes of this study were to characterize postoperative mortality rates extending to 1 year and to identify preoperative predictors of 1 year mortality after emergency abdominal surgery. METHODS We retrospectively reviewed the records of all patients older than 70 years who underwent emergency abdominal surgery at a major teaching hospital between 2006 and 2011. Demographics, preoperative physiology, prehospital status, body mass index, laboratory values, Charlson scores, comorbid conditions, American Society of Anesthesiologists classification, and operative details were recorded. The primary end point was 1-year mortality. Complementary log-log binary regression was used to determine independent predictors of death. Model discrimination was evaluated using the c statistic. RESULTS A total of 390 patients met our inclusion criteria. The mean age was 79 years, and 56% were women. Postoperative mortality was 16.2% at 30 days and 32.5% at 1 year, reflecting a doubling of mortality over 11 months. Independent preoperative predictors of 1-year mortality were Charlson score of 4 or higher (hazard ratio [HR], 1.79; 95% confidence interval [CI], 1.38–2.34), American Society of Anesthesiologists class of 4 or higher (HR, 1.66; 95% CI, 1.22–2.21), albumin less than 3.5 (HR, 1.71; 95% CI, 1.31–2.28), and body mass index lower than 18.5 (HR, 3.36; 95% CI, 1.48–6.86). The c statistic was 0.81. CONCLUSION The 1-year mortality after emergency surgery in the elderly is significantly higher than that at 30 days. We identified a constellation of preoperative clinical markers that were highly predictive of this poor late outcome. The presence of these findings in the emergency setting should prompt preoperative discussion about treatment goals and encourage surgeons to set realistic expectations about outcomes with the patient and family. Future studies will develop a clinical scoring tool that can be applied at the bedside to provide more effective counseling for this high-risk population. LEVEL OF EVIDENCE Epidemiologic/prognostic study, level III; therapeutic study, level IV.


Journal of Comparative Effectiveness Research | 2015

Translating comparative effectiveness research into Medicaid payment policy: views from medical and pharmacy directors

Joel S. Weissman; Kimberly Westrich; J Lee Hargraves; Steven D. Pearson; Robert W. Dubois; Sarah K. Emond; Olubode A. Olufajo

Importance Trauma is the leading cause of death and disability among young adults, who are also among the most likely to be uninsured. Efforts to increase insurance coverage, including passage of the Patient Protection and Affordable Care Act (ACA), were intended to improve access to care and promote improvements in outcomes. However, despite reported gains in coverage, the ACAs success in promoting use of high-quality care and enacting changes in clinical end points remains unclear. Objectives To assess for observed changes in insurance coverage and rehabilitation use among young adult trauma patients associated with the ACA, including the Dependent Coverage Provision (DCP) and Medicaid expansion/open enrollment, and to consider possible insurance and rehabilitation differences between DCP-eligible vs -ineligible patients and among stratified demographic and community subgroups. Design, Setting, and Participants A longitudinal assessment of DCP implementation and Medicaid expansion/open enrollment using risk-adjusted before-and-after, difference-in-difference, and interrupted time-series analyses was conducted. Eleven years (January 1, 2005, to September 31, 2015) of Maryland Health Services Cost Review Commission data, representing complete patient records from all payers within the state, were used to identify all hospitalized young adult (aged 18-34 years) trauma patients in Maryland during the study period. Results Of the 69 507 hospitalized patients included, 50 548 (72.7%) were male, and the mean (SD) age was 25 (5) years. Before implementation of the DCP, 1 of 4 patients was uninsured. After ACA implementation, the number fell to less than 1 of 10, with similar patterns emerging in emergency department and outpatient settings. The change was primarily driven by Medicaid expansion/open enrollment, which corresponded to a 20.1 percentage-point increase in Medicaid (95% CI, 18.9-21.3) and an 18.2 percentage-point decrease in uninsured (95% CI, -19.3 to -17.2). No changes were detected among privately insured patients. Rehabilitation use increased by 5.4 percentage points (95% CI, 4.5-6.2)-a 60% relative increase from a baseline of 9%. Mortality (-0.5; 95% CI, -0.9 to -0.1) and failure-to-rescue rates (-4.5; 95% CI, -7.4 to -1.6) also significantly declined. Stratified changes point to significant differences in the percentage of uninsured patients and rehabilitation access across the board, mitigating or even eradicating disparities in certain cases. Conclusions and Relevance For patients who are injured, young, and uninsured, Medicaid expansion/open enrollment in Maryland changed insurance coverage and altered patient outcomes in ways that the DCP alone was never intended to do. Implementation of Medicaid expansion/open enrollment transformed the landscape of trauma coverage, directly affecting the health of one of the countrys most vulnerable at-risk groups.

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Ali Salim

Brigham and Women's Hospital

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Zara Cooper

Brigham and Women's Hospital

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Adil H. Haider

Brigham and Women's Hospital

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Joaquim M. Havens

Brigham and Women's Hospital

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Reza Askari

Brigham and Women's Hospital

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Cheryl K. Zogg

Brigham and Women's Hospital

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