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elixhauser comorbidity index

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https://www.readbyqxmd.com/read/27876006/predictors-of-in-hospital-mortality-following-major-lower-extremity-amputations-in-type-2-diabetic-patients-using-artificial-neural-networks
#1
Ana Lopez-de-Andres, Valentin Hernandez-Barrera, Roberto Lopez, Pablo Martin-Junco, Isabel Jimenez-Trujillo, Alejandro Alvaro-Meca, Miguel Angel Salinero-Fort, Rodrigo Jimenez-Garcia
BACKGROUND: Outcome prediction is important in the clinical decision-making process. Artificial neural networks (ANN) have been used to predict the risk of post-operative events, including survival, and are increasingly being used in complex medical decision making. We aimed to use ANN analysis to estimate predictive factors of in-hospital mortality (IHM) in patients with type 2 diabetes (T2DM) after major lower extremity amputation (LEA) in Spain. METHODS: We design a retrospective, observational study using ANN models...
November 22, 2016: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/27816369/in-hospital-mortality-in-patients-with-periprosthetic-joint-infection
#2
Alisina Shahi, Timothy L Tan, Antonia F Chen, Mitchell G Maltenfort, Javad Parvizi
BACKGROUND: While periprosthetic joint infection (PJI) has a huge impact on patient function and health, only a few studies have investigated its impact on mortality. The purpose of this large-scale study was to (1) determine the rate and trends of in-hospital mortality for PJI and (2) compare the in-hospital mortality rate of patients with PJI and those undergoing revision arthroplasty for aseptic failure and patients undergoing other nonorthopedic major surgical procedures. METHODS: Data from the Nationwide Inpatient Sample from 2002 to 2010 were analyzed to determine the risk of in-hospital mortality for PJI patients compared with aseptic revision arthroplasty...
September 30, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27784168/hospital-based-analysis-of-trends-and-outcomes-for-patients-undergoing-pyelolithotomy
#3
Charles U Nottingham, Andrew J Cohen, Vignesh T Packiam, Joseph J Pariser, Glenn S Gerber
OBJECTIVE: To determine trends in pyelolithotomy, evaluate risk factors for complications, and evaluate the difference in outcomes and charges between open and minimally invasive (MI) techniques. PATIENTS AND METHODS: We used the Nationwide Inpatient Sample to identify patients with a diagnosis of having nephrolithiasis undergoing pyelolithotomy from 2008 to 2012. Total charges were inflation-adjusted to U.S. dollars in 2012. Patient demographics, hospital characteristics, and outcomes were reported and compared between open and MI groups after survey weighting...
November 17, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27692801/risk-of-prolonged-opioid-use-among-opioid-na%C3%A3-ve-patients-following-common-hand-surgery-procedures
#4
Shepard P Johnson, Kevin C Chung, Lin Zhong, Melissa J Shauver, Michael J Engelsbe, Chad Brummett, Jennifer F Waljee
PURPOSE: To evaluate prolonged opioid use in opioid-naïve patients after common hand surgery procedures in the United States. METHODS: We studied insurance claims from the Truven MarketScan databases to identify opioid-naïve adult patients (no opioid exposure 11 months before the perioperative period) who underwent an elective (carpal tunnel release, carpometacarpal arthroplasty/arthrodesis, cubital tunnel release, or trigger finger release) or trauma-related (closed distal radius fracture fixation, flexor tendon repair, metacarpal fracture fixation, or phalangeal fracture fixation) hand surgery procedure between 2010 and 2012 (N = 77,573 patients)...
September 7, 2016: Journal of Hand Surgery
https://www.readbyqxmd.com/read/27492451/comorbidity-indices-versus-function-as-potential-predictors-of-30-day-readmission-in-older-patients-following-postacute-rehabilitation
#5
Amit Kumar, Amol M Karmarkar, James E Graham, Linda Resnik, Alai Tan, Anne Deutsch, Kenneth J Ottenbacher
BACKGROUND: Information regarding the association of comorbidity indices with readmission risk for older adults receiving postacute care is limited. The purpose of this study was to compare the discriminatory ability of five comorbidity indices in predicting 30-day all-cause hospital readmission following discharge to the community from postacute inpatient rehabilitation facilities (IRF). METHODS: The sample included Medicare fee-for-service beneficiaries with stroke, lower extremity joint replacement, and fracture, discharged from IRF in 2011 (N = 75,582)...
August 4, 2016: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/27424470/duration-of-postoperative-atrial-fibrillation-after-cardiac-surgery-is-associated-with-worsened-long-term-survival
#6
Martin I Sigurdsson, Nicholas T Longford, Mahyar Heydarpour, Louis Saddic, Tzuu-Wang Chang, Amanda A Fox, Charles D Collard, Sary Aranki, Prem Shekar, Stanton K Shernan, Jochen D Muehlschlegel, Simon C Body
BACKGROUND: Studies of the effects of postoperative atrial fibrillation (poAF) on long-term survival are conflicting, likely because of comorbidities that occur with poAF and the patient populations studied. Furthermore, the effects of poAF duration on long-term survival are poorly understood. METHODS: We utilized a prospectively collected database on outcomes of cardiac surgery at a large tertiary care institution between August 2001 and December 2010 with survival follow-up through June 2015 to analyze long-term survival of patients with poAF...
December 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27424092/functional-status-outperforms-comorbidities-as-a-predictor-of-30-day-acute-care-readmissions-in-the-inpatient-rehabilitation-population
#7
Shirley L Shih, Ross Zafonte, David W Bates, Paul Gerrard, Richard Goldstein, Jacqueline Mix, Paulette Niewczyk, S Ryan Greysen, Lewis Kazis, Colleen M Ryan, Jeffrey C Schneider
OBJECTIVES: Functional status is associated with patient outcomes, but is rarely included in hospital readmission risk models. The objective of this study was to determine whether functional status is a better predictor of 30-day acute care readmission than traditionally investigated variables including demographics and comorbidities. DESIGN: Retrospective database analysis between 2002 and 2011. SETTING: 1158 US inpatient rehabilitation facilities...
October 1, 2016: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/27402394/the-association-of-age-with-short-term-and-long-term-mortality-in-adults-admitted-to-the-intensive-care-unit
#8
Raghu R Seethala, Kevin Blackney, Peter Hou, Haytham M A Kaafarani, Daniel Dante Yeh, Imoigele Aisiku, Christopher Tainter, Marc deMoya, David King, Jarone Lee
BACKGROUND: Based on the current literature, it is unclear whether advanced age itself leads to higher mortality in critically ill patients or whether it is due to the greater number of comorbidities in the elderly patients. We hypothesized that increasing age would increase the odds of short-term and long-term mortality after adjusting for baseline comorbidities in intensive care unit (ICU) patients. METHODS: We performed a retrospective cohort study of 57 160 adults admitted to any ICU over 5 years at 2 academic tertiary care centers...
July 11, 2016: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/27257680/measures-of-global-health-status-on-dialysis-signal-early-rehospitalization-risk-after-kidney-transplantation
#9
Meera N Harhay, Alexander S Hill, Wei Wang, Orit Even-Shoshan, Adam S Mussell, Roy D Bloom, Harold I Feldman, Jason H Karlawish, Jeffrey H Silber, Peter P Reese
BACKGROUND: Early rehospitalization (<30 days) after discharge from kidney transplantation (KT) is associated with poor outcomes. We explored summary metrics of pre-transplant health status that may improve the identification of KT recipients at risk for early rehospitalization and mortality after transplant. MATERIALS AND METHODS: We performed a retrospective cohort study of 8,870 adult (≥ 18 years) patients on hemodialysis who received KT between 2000 and 2010 at United States transplant centers...
2016: PloS One
https://www.readbyqxmd.com/read/27161849/variation-in-30-day-readmission-rates-among-medically-complex%C3%A2-patients-at-inpatient-rehabilitation-facilities-and-contributing%C3%A2-factors
#10
Lindsay Ramey, Richard Goldstein, Ross Zafonte, Colleen Ryan, Lewis Kazis, Jeffrey Schneider
OBJECTIVE: Few studies have focused on 30-day readmission rates in inpatient rehabilitation facilities (IRFs) and factors that contribute to this. The purpose of this study was to examine the variation in 30-day readmission rates among medically complex patients at IRFs nationally and explore how patient and facility characteristics are associated with this variation. DESIGN: Retrospective review of an administrative database. SETTING: IRFs throughout the United States...
August 1, 2016: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/27133161/assessing-in-hospital-outcomes-and-resource-utilization-after-primary-total-joint-arthroplasty-among-underweight-patients
#11
Afshin A Anoushiravani, Zain Sayeed, Monique C Chambers, Theodore J Gilbert, Steven L Scaife, Mouhanad M El-Othmani, Khaled J Saleh
BACKGROUND: Poor nutritional status is a preventable condition frequently associated with low body mass index (BMI). The purpose of this study is to comparatively analyze low (≤19 kg/m(2)) and normal (19-24.9 kg/m(2)) BMI cohorts, examining if a correlation between BMI, postoperative outcomes, and resource utilization exists. METHODS: Discharge data from the 2006-2012 National Inpatient Sample were used for this study. A total of 3550 total hip arthroplasty (THA) and 1315 total knee arthroplasty (TKA) patient samples were divided into 2 cohorts, underweight (≤19 kg/m(2)) and normal BMI (19-24...
July 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27127895/a-flexible-data-driven-comorbidity-feature-extraction-framework
#12
Costas Sideris, Mohammad Pourhomayoun, Haik Kalantarian, Majid Sarrafzadeh
Disease and symptom diagnostic codes are a valuable resource for classifying and predicting patient outcomes. In this paper, we propose a novel methodology for utilizing disease diagnostic information in a predictive machine learning framework. Our methodology relies on a novel, clustering-based feature extraction framework using disease diagnostic information. To reduce the data dimensionality, we identify disease clusters using co-occurrence statistics. We optimize the number of generated clusters in the training set and then utilize these clusters as features to predict patient severity of condition and patient readmission risk...
June 1, 2016: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/27118351/is-metal-on-metal-total-hip-arthroplasty-associated-with-neurotoxicity
#13
Abiram Bala, Colin T Penrose, Thorsten M Seyler, Timmothy R Randell, Samuel S Wellman, Michael P Bolognesi
BACKGROUND: Isolated case reports in the literature describe systemic neurologic side effects associated with metal-on-metal (MOM) bearing surfaces, yet the incidence of these effects have not been evaluated beyond individual cases. The purpose of this study was to compare new diagnoses of these side effects described in isolated cases in large patient cohorts of MOM vs metal on polyethylene (MOP). METHODS: We queried the entire Medicare database from 2005 to 2012...
September 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27080111/comparing-in-hospital-total-joint-arthroplasty-outcomes-and-resource-consumption-among-underweight-and-morbidly-obese-patients
#14
Zain Sayeed, Afshin A Anoushiravani, Monique C Chambers, Theodore J Gilbert, Steven L Scaife, Mouhanad M El-Othmani, Khaled J Saleh
BACKGROUND: As orthopedic surgeons search for objective measures that predict total joint arthroplasty (TJA) outcomes, body mass index may aid in risk stratification. The purpose of this study was to compare in-hospital TJA outcomes and resource consumption amongst underweight (body mass index ≤19 kg/m(2)) and morbidly obese patients (≥40 kg/m(2)). METHODS: Discharge data from 2006 to 2012 National Inpatient Sample were used for this study. A total of 1503 total hip arthroplasty (THA) and 956 total knee arthroplasty (TKA) patients were divided into 2 cohorts, underweight (≤19 kg/m(2)) and morbidly obese (≥40 kg/m(2))...
October 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/26940106/prevalence-of-chronic-diseases-among-physicians-in-taiwan-a-population-based-cross-sectional-study
#15
Li-Ting Kao, Yu-Lung Chiu, Herng-Ching Lin, Hsin-Chien Lee, Shiu-Dong Chung
OBJECTIVES: The health of physicians is an important topic which needs to be addressed in order to provide the best quality of patient care. However, there are few studies on the prevalence of chronic diseases among physicians. In this study, we explored the prevalence of chronic diseases among physicians and compared the probability of chronic diseases between physicians and the general population using a population-based data set in Taiwan. STUDY DESIGN: A cross-sectional study...
2016: BMJ Open
https://www.readbyqxmd.com/read/26918403/comparative-performance-of-diagnosis-based-and-prescription-based-comorbidity-scores-to-predict-health-related-quality-of-life
#16
COMPARATIVE STUDY
Hemalkumar B Mehta, Sneha D Sura, Manvi Sharma, Michael L Johnson, Taylor S Riall
OBJECTIVES: To compare the performance of the health-related quality of life-comorbidity index (HRQoL-CI) with the diagnosis-based Charlson, Elixhauser, and combined comorbidity scores and the prescription-based chronic disease score (CDS) in predicting HRQoL in Agency of Healthcare Research and Quality priority conditions (asthma, breast cancer, diabetes, and heart failure). METHODS: The Medical Expenditure Panel Survey (2005 and 2007-2011) data was used for this retrospective study...
May 2016: Medical Care
https://www.readbyqxmd.com/read/26792199/predictors-of-outcomes-and-hospital-charges-following-atlantoaxial-fusion
#17
Joseph E Tanenbaum, Daniel Lubelski, Benjamin P Rosenbaum, Nicolas R Thompson, Edward C Benzel, Thomas E Mroz
BACKGROUND CONTEXT: Atlantoaxial fusion is used to correct atlantoaxial instability that is often secondary to traumatic fractures, Down syndrome, or rheumatoid arthritis. The effect of age and comorbidities on outcomes following atlantoaxial fusion is unknown. PURPOSE: This study aimed to better understand trends and predictors of outcomes and charges following atlantoaxial fusion and to identify confounding variables that should be included in future prospective studies...
May 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/26656501/new-morbidity-and-comorbidity-scores-based-on-the-structure-of-the-icd-10
#18
Jürgen Stausberg, Stefan Hagn
Measures of morbidity and comorbidity are frequently used for the control of confounding, particularly in health services research. Several proposals for those measures are defined with ICD-coded diagnoses available in hospital routine data. However, a measure that makes use of the ICD structure is missing. Objective of this work was to elaborate the power of the ICD structure for defining morbidity and comorbidity measures. Routine data from three German hospitals with inpatients discharged 2008 were used for model development; routine data from 36 German hospitals with inpatients admitted and discharged 2010 were used for model evaluation...
2015: PloS One
https://www.readbyqxmd.com/read/26642942/comparison-of-different-comorbidity-measures-for-oral-cancer-patients-with-surgical-intervention-a-longitudinal-study-from-a-single-cancer-center
#19
Ching-Chih Lee, Hsu-Chueh Ho, Yu-Chieh Su, Po-Chun Chen, Chia-Hui Yu, Ching-Chieh Yang
OBJECTIVE: Several comorbid measures have been developed and demonstrated the predictive ability for cancer mortality. We conducted a retrospective study on oral squamous cell carcinoma (OSCC) patients to compare the Charlson comorbidity index score (CCIS) to the Elixhauser comorbidity index score (ECIS). METHODS: Newly diagnosed OSCC patients (n=232) post major surgery with or without adjuvant therapy were identified from the cancer registry database between 2006 and 2011...
June 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/26595225/comparison-of-comorbidity-scores-in-predicting-surgical-outcomes
#20
Hemalkumar B Mehta, Francesca Dimou, Deepak Adhikari, Nina P Tamirisa, Eric Sieloff, Taylor P Williams, Yong-Fang Kuo, Taylor S Riall
INTRODUCTION: The optimal methodology for assessing comorbidity to predict various surgical outcomes such as mortality, readmissions, complications, and failure to rescue (FTR) using claims data has not been established. OBJECTIVE: Compare diagnosis-based and prescription-based comorbidity scores for predicting surgical outcomes. METHODS: We used 100% Texas Medicare data (2006-2011) and included patients undergoing coronary artery bypass grafting, pulmonary lobectomy, endovascular repair of abdominal aortic aneurysm, open repair of abdominal aortic aneurysm, colectomy, and hip replacement (N=39,616)...
February 2016: Medical Care
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