Ariel Berger
Pfizer
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Publication
Featured researches published by Ariel Berger.
Infection Control and Hospital Epidemiology | 2008
John Edelsberg; Ariel Berger; David J. Weber; Rajiv Mallick; Andreas Kuznik; Gerry Oster
OBJECTIVE To estimate the consequences of failure of initial antibiotic therapy for patients with complicated skin and skin-structure infections. DESIGN Retrospective cohort study. SETTING Large US multihospital database. PATIENTS We identified a total of 47,219 patients (age 18 years or older) who were admitted to the hospital for complicated skin and skin-structure infections from April 1, 2003, through March 31, 2004, and who received intravenous antibiotics during the first 2 hospital-days (ie, initial antibiotic therapy). Failure of therapy was defined as drainage, debridement, or receipt of other intravenous antibiotics at any subsequent time (except for changes to narrower-spectrum agents or any therapy change immediately before discharge). Predictors of failure of antibiotic therapy and mortality were examined using multivariate logistic regression. Analysis of covariance was used to estimate the impact of treatment failure on duration of intravenous antibiotic therapy, length of stay, and total inpatient charges. RESULTS For 10,782 admitted patients (22.8%), there was evidence of failure of initial antibiotic therapy. In multivariate analyses, treatment failure was associated with receipt of vasoactive medications during the first 2 hospital-days (odds ratio [OR], 1.66 [95% confidence interval {CI}, 1.19-2.31]), initiation of antibiotic therapy in the intensive care unit (OR, 1.53 [95% CI, 1.28-1.84]), and the patients Charlson comorbidity index (OR per 1-point increase, 1.06 [95% CI, 1.04-1.08]); treatment failure was also was associated with a 3-fold increase in mortality (OR, 2.91 [95% CI, 2.34-3.62]). Compared with patients for whom initial treatment was successful, patients who experienced treatment failure received intravenous antibiotic therapy for a mean of 5.7 additional days, were hospitalized for a mean of 5.4 additional days, and incurred a mean of
Annals of Pharmacotherapy | 2004
Gerry Oster; Daniel A. Ollendorf; Montserrat Vera-Llonch; May Hagiwara; Ariel Berger; John Edelsberg
5,285 (in 2003 dollars) in additional inpatient charges (all P<.01). CONCLUSION Failure of initial antibiotic therapy in the treatment of complicated skin and skin-structure infections is associated with significantly worse clinical and economic outcomes.
Annals of Pharmacotherapy | 2005
Ariel Berger; John Edelsberg; Tracy Li; John R Maclean; Gerry Oster
BACKGROUND Venous thromboembolism (VTE) is a frequent and potentially costly complication of major orthopedic surgery. OBJECTIVE To estimate the economic consequences of VTE following major orthopedic surgery. METHODS Using a large healthcare claims database, we identified all patients who underwent total hip replacement, major knee surgery, or hip fracture repair from January 1993 to December 1998. Patients with clinical VTE (cases) were identified based on a diagnosis of deep vein thrombosis or pulmonary embolism within 90 days of surgery (index admission) and ≥1 prescription for warfarin or unfractionated heparin within 30 days of the date of initial VTE diagnosis. Each case was matched (using age and procedure type) to 2 randomly selected patients who did not have any claims for clinical VTE (matched controls). Utilization and billed charges were then examined over a 90-day period following admission. Cases were stratified based on whether VTE was first noted during the index admission or thereafter. RESULTS A total of 11 960 patients were identified who underwent total hip replacement, major knee surgery, or hip fracture repair (n = 3171, 3955, 4834, respectively). Over a 90-day period, 259 patients (2.2%) developed clinical VTE. Most cases (61.8%) occurred after hospital discharge. For patients with in-hospital VTE, mean length of stay for the index admission was 4.5 days longer than that of matched controls (11.1 vs 6.6); by day 90, there was a 5.4-day difference in total hospital days. Mean billed charges for the index admission were
Pain Practice | 2012
Ariel Berger; Lisa M. Bloudek; Sepideh F. Varon; Gerry Oster
17 552 higher (
Pain Practice | 2009
Ariel Berger; Thomas Toelle; Alesia Sadosky; Ellen Dukes; John Edelsberg; Gerry Oster
52 037 vs
Current Medical Research and Opinion | 2008
Ariel Berger; Alesia Sadosky; Ellen Dukes; Susan Martin; John Edelsberg; Gerry Oster
34 485); the difference rose to
Arthritis & Rheumatism | 2011
Ariel Berger; Kevin J. Bozic; Brett R. Stacey; John Edelsberg; Alesia Sadosky; Gerry Oster
18 834 by day 90 (
Journal of Occupational and Environmental Medicine | 2011
Ariel Berger; Craig Hartrick; John Edelsberg; Alesia Sadosky; Gerry Oster
54 480 vs
The Clinical Journal of Pain | 2007
Ariel Berger; Ellen Dukes; John Edelsberg; Brett R. Stacey; Gerry Oster
35 646). For patients who developed clinical VTE following hospital discharge, there was a 3.4-day difference in total hospital days at day 90 (10.2 vs 6.8) as a result of readmissions for VTE; mean total billed charges at day 90 were
BMC Psychiatry | 2012
Ariel Berger; John Edelsberg; Kafi N. Sanders; Jose Alvir; Ma Mychaskiw; Gerry Oster
5765 higher (