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Introduction: Sickle cell disease (SCD), the most commonly inherited hemoglobinopathy in the United States, increases the likelihood of postoperative complications, resulting in higher costs and readmissions. We used a retrospective cohort study to explore SCD's influence on postoperative complications and readmissions after cholecystectomy, appendectomy, and hysterectomy., Methods: We used an administrative database's 2007-2014 data from California, Florida, New York, Maryland, and Kentucky., Results: 1,934,562 patients aged ≥18 years were included. Compared to non-SCD patients, SCD patients experienced worse outcomes: increased odds of blood transfusion and major and minor complications, higher adjusted odds of 30- and 90-day readmissions, longer length of stay, and higher total hospital charges., Conclusion: Sickle cell disease patients are at high risk for poor outcomes based on their demographic characteristics. Therefore, perioperative physicians including hematologists, anesthesiologists, and surgeons need to take this knowledge into consideration for management and counselling of SCD patients on the risks of surgery and recovery., Competing Interests: Conflict of Interest None., (Copyright © 2020 National Medical Association. Published by Elsevier Inc. All rights reserved.)

Aim: Medicaid versus private primary insurance status may predict in-hospital mortality and morbidity after total knee arthroplasty (TKA). Materials & methods: Regression models were used to test our hypothesis in patients in the State Inpatient Database (SID) from five states who underwent primary TKA from January 2007 to December 2014. Results: Medicaid patients had greater odds of in-hospital mortality (odds ratio [OR]: 1.73; 95% CI: 1.01-2.95), greater odds of any postoperative complications (OR: 1.25; 95% CI: 1.18-1.33), experience longer lengths of stay (OR: 1.09; 95% CI: 1.08-1.10) and higher total charges (OR: 1.03; 95% CI: 1.02-1.04). Conclusion: Medicaid insurance status is associated with higher in-hospital mortality and morbidity in patients after TKA compared with private insurance.

Background: Hospital readmissions contribute substantially to the overall healthcare cost. Coronary artery bypass graft (CABG) is of particular interest due to its relatively high short-term readmission rates and mean hospital charges., Methods: A retrospective review was performed on 2007-2011 data from California, Florida, and New York from the State Inpatient Databases, Healthcare Cost and Utilization Project. All patients ≥18 years of age who underwent isolated CABG and met inclusion/exclusion criteria were included. Insurance status was categorized by Medicaid, Medicare, Private Insurance, Uninsured, and Other. Primary outcomes were unadjusted rates and adjusted odds of readmission at 30- and 90-days. Secondary outcomes included diagnosis at readmission., Results: A total of 177,229 were included in the analyses after assessing for exclusion criteria. Overall 30-day readmission rate was 16.1%; rates were highest within Medicare (18.4%) and Medicaid (20.2%) groups and lowest in the private insurance group (11.7%; p < 0.0001). Similarly, 90-day rates were highest in Medicare (27.3%) and Medicaid (29.8%) groups and lowest in the private insurance group (17.6%), with an overall 90-day rate of 24.0% (p < 0.0001). The most common 30-day readmission diagnoses were atrial fibrillation (26.7%), pleural effusion (22.5%), and wound infection (17.7%). Medicare patients had the highest proportion of readmissions with atrial fibrillation (31.7%) and pleural effusions (23.3%), while Medicaid patients had the highest proportion of readmissions with wound infections (21.8%). Similar results were found at 90 days. Risk factors for readmission included non-private insurance, age, female sex, non-white race, low median household income, non-routine discharge, length of stay, and certain comorbidities and complications., Conclusions: CABG readmission rates remain high and are associated with insurance status and racial and socioeconomic markers. Further investigation is necessary to better delineate the underlying factors that relate racial and socioeconomic disparities to CABG readmissions. Understanding these factors will be key to improving healthcare outcomes and expenditure., (Copyright © 2018 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.)

Study Objective: To confirm the relationship between primary payer status as a predictor of increased perioperative risks and post-operative outcomes after total hip replacements., Design: Retrospective cohort study., Setting: Administrative database study using 2007-2011 data from California, Florida, and New York from the State Inpatient Databases (SID), Healthcare Cost and Utilization Project, Agency for Healthcare Research and Quality., Patients: 295,572 patients age≥18years old who underwent total hip replacement with non-missing insurance data were collected, using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) diagnoses and procedures code (ICD-9-CM code 81.51)., Interventions: Patients underwent total hip replacement., Measurements: Patients were cohorted by insurance type as either Medicare, Medicaid, Uninsured, Other, and Private Insurance. Demographic characteristics and comorbidities were compared. Unadjusted rates of in-hospital mortality, postoperative complications, LOS, 30-day, and 90-day readmission status were compared. Adjusted odds ratios were calculated for our outcomes using multivariate linear and logistic regression models fitted to our data., Main Results: Medicaid patients incurred a 125% increase in the odds of in-hospital mortality compared to those with Private Insurance (OR 2.25, 99% CI 1.01-5.01). Medicaid payer status was associated with the highest statistically significant adjusted odds of mortality, any complication (OR, 1.26), cardiovascular complications (OR, 1.37), and infectious complications (OR, 1.66) when compared with Private Insurance. Medicaid patients had the highest statistically significant adjusted odds of 30-day (OR, 1.63) and 90-day readmission (OR, 1.58) and the longest adjusted LOS., Conclusions: We found higher unadjusted rates and risk adjusted odds ratios of postoperative mortality, morbidity, LOS, and readmissions for patients with Medicaid insurance as compared to patients with Private Insurance. Our study shows that primary payer status serves as a predictor of perioperative risks and that primary payer status should be viewed as a peri-operative risk factor., (Copyright © 2017 Elsevier Inc. All rights reserved.)

Background: Readmission rates after major procedures are used to benchmark quality of care. We sought to identify readmission diagnoses and factors associated with readmission in patients undergoing pulmonary lobectomy., Methods: Analyzing the State Inpatient Databases (Healthcare Cost and Utilization Project), we reviewed all lobectomies performed from 2009 to 2011 in California, Florida, and New York. The group was subdivided into open (OL) versus minimally invasive lobectomy (MIL; thoracoscopic/robotic). We used unique identifiers to determine 30- and 90-day readmission rates and diagnoses and performed regression analysis to determine factors associated with readmission., Results: A total of 22,647 lobectomies were identified (58.8% OL vs 41.2% MIL; median age, 68 years; median length of stay, 6 days). Most patients (59.8%) had routine discharge home (home health care, 29.4%; transfer to other facility, 8.8%; mortality, 1.9%). The 30-day readmission rate was 11.5% (OL 12.0% vs MIL 10.8%, p = 0.01), while the 90-day readmission rate was 19.8% (OL 21.1% vs MIL 17.9%, p < 0.001). The most common readmission diagnoses were pulmonary (24.1%), cardiovascular (16.3%), and complications related to surgical/medical procedures (15.1%). Preoperative factors associated with readmission included male gender (odds ratio, 1.19), Medicaid payer (odds ratio, 1.29), and several individual comorbidities. Surgical approach and postoperative complications were not independently associated with readmission., Conclusions: Readmission is a frequent event after pulmonary lobectomy and is strongly associated with preoperative demographic factors and comorbidities. Resources and services should be directed to patients at risk for readmission and multicomponent care pathways developed that may circumvent the need for repeat hospitalization., (Copyright © 2016 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.)

Study Design: Analysis of population-based national hospital discharge data collected for the National Inpatient Sample., Objective: To examine demographics of patients undergoing primary anterior spine fusion (ASF), posterior spine fusion (PSF), and anterior/posterior spine fusion (APSF) of the noncervical spine, assess the incidence of perioperative morbidity and mortality, and determine independent risk factors for in-hospital death., Summary of Background Data: The utilization of surgical fusion has been increasing dramatically. Despite this trend, a paucity of literature addressing perioperative outcomes exists., Methods: Data collected for each year between 1998 and 2006 for the National Inpatient Sample were analyzed. Discharges with a procedure code for primary noncervical spine fusion were included in the sample. The prevalence of patient as well as health care system-related demographics were evaluated by procedure type (ASF, PSF, and APSF). Frequencies of procedure-related complications and in-hospital mortality were analyzed. Independent predictors for in-hospital mortality were determined., Results: We identified 261,256 entries representing an estimated 1,273,228 hospitalizations for primary spine fusion. Patients undergoing ASF and APSF were significantly younger (44.8 ± 0.08 and 44.22 ± 0.11 years) and had lower average comorbidity indeces (0.30 ± 0.002 and 0.31 ± 0.004) than those undergoing PSF (52.12 ± 0.04 years and 0.41 ± 0.002) (P < 0.0001). The incidence of procedure-related complications was 18.68% among ASF, 15.72% in PSF, and 23.81% in APSF patients (P < 0.0001). In-hospital mortality rates after APSF were approximately twice those of PSF (0.51 ± 0.038 vs. 0.26 ± 0.012) (P < 0.0001). Adjusted risk factors for in-hospital mortality included the following: APSF and ASF compared to PSF, male gender, increasing age, and increasing comorbidity burden. Several comorbidities and complications independently increased the risk for perioperative death, as did underlying spinal pathology., Conclusion: Despite being performed in generally younger and healthier patients, APSF and ASF are associated with increased morbidity and mortality. Our findings can be used for the purposes of risk stratification, accurate patient consultation, and hypothesis formation for future research.

Background Context: Despite increasing utilization of surgical spine fusions, a paucity of literature addressing perioperative complications after revision posterior spinal fusion (RPSF) versus primary posterior spine fusion (PPSF) of the thoracic and lumbar spine exists., Purpose: To examine demographics of patients undergoing PPSF and RPSF of the thoracic and lumbar spine, assess the incidence of perioperative morbidity and mortality, and determine independent risk factors for in-hospital death., Study Design/setting: Analysis of nationally representative data collected for the National Inpatient Sample (NIS)., Patient Sample: All discharges included in the NIS with a procedure code for posterior thoracic and lumbar spine fusion from 1998 to 2006., Outcome Measures: In-hospital mortality and morbidity., Methods: Data collected for each year between 1998 and 2006 for the NIS were analyzed. Discharges with a procedure code for thoracic and lumbar spine fusion were included in the sample. The prevalence of patient- as well as health care-related demographics was evaluated by procedure type (primary vs. revision). Frequencies of procedure-related complications and in-hospital mortality were analyzed. Independent predictors for in-hospital mortality were determined., Results: We identified 222,549 PPSF and 12,474 RPSF discharges between 1998 and 2006. Patients undergoing PPSF were significantly younger (51.23 years; confidence interval [CI]=51.16, 51.31) and had lower average comorbidity indices (0.40; CI=0.39, 0.41) than those undergoing RPSF (52.69 years; CI=52.43, 52.97) and (0.44; CI=0.43, 0.45), p<.0001. The incidence of procedure-related complications was 16.02% among RPSF compared with 13.44% in PPSF patients (p<.0001). In-hospital mortality rates after PPSF were approximately twice those of RPSF (0.28% vs. 0.15%, p=.006). Adjusted risk factors for increased in-hospital mortality included PPSF compared with RPSF, male gender, and increasing age. A number of comorbidities, complications, and specific surgical indications increased the risk for perioperative death., Conclusion: Despite being performed in generally younger and healthier patients and having lower perioperative morbidity, PPSF procedures are associated with increased mortality compared with RPSF procedures. The findings of this study can be used for risk stratification, accurate patient consultation, and hypothesis formation for future research., (Copyright © 2010 Elsevier Inc. All rights reserved.)