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Featured researches published by Eileen Fonseca.


BMC Infectious Diseases | 2013

The disease burden of pertussis in adults 50 years old and older in the United States: a retrospective study

Catherine Balderston McGuiness; Jerrold Hill; Eileen Fonseca; Gregory Hess; William Hitchcock; Girishanthy Krishnarajah

BackgroundWhile the incidence of pertussis has increased in adolescents and adults in recent years in the U.S., little is known about the incidence and economic burden of pertussis in older adults. This study provides evidence of the incidence of pertussis and direct medical charges associated with pertussis episodes of care (PEOCs) in adults aged 50 years and older in the U.S.MethodsPEOCs were divided into periods before and after the initial pertussis diagnosis was made (i.e., the index date) to capture any conditions immediately preceding the pertussis diagnosis that may have represented misdiagnoses and subsequent conditions that may have represented sequelae. Data were extracted from IMSs recently acquired SDI databases of longitudinal, patient-level practitioner claims and hospital operational billing records collected from private practitioners and hospitals, respectively, across the U.S. Patients 50 years and older with one or more ICD-9-CM diagnoses for pertussis/whooping cough and/or a laboratory test positive for Bordetella pertussis between 1/1/2006 and 10/31/2010 were eligible for study inclusion. Resource utilization and charges (i.e., unadjudicated claims) associated with the patients physician and hospital care were analyzed. The nationally projected incidence of pertussis was estimated using a subsample of patients with the required data necessary for projection.ResultsEstimated incidence of diagnosed pertussis ranged from 2.1-4.6 cases per 100,000 people across the two age groups (50–64 and [greater than or equal to] 65) during the years 2006 to 2010. The analysis of charges included 5,748 patients [greater than or equal to] 50 years of age with pertussis. Average charges across the entire episode of care were


Genetics Research | 2015

Pharmacogenomic and pharmacogenetic-guided therapy as a tool in precision medicine: current state and factors impacting acceptance by stakeholders

Gregory Hess; Eileen Fonseca; Rachel Scott; Jesen Fagerness

1,835 and


Radiation Oncology | 2012

Cost of palliative radiation to the bone for patients with bone metastases secondary to breast or prostate cancer

Gregory Hess; Karen Chung; Jerrold Hill; Eileen Fonseca

14,428 per patient in the outpatient and inpatient settings, respectively. The average number of outpatient (i.e., private practitioner) visits was 2 per patient in both the pre-index and post-index periods.ConclusionsIn the U.S., the incidence of diagnosed pertussis in adults 50 years and older has increased between 2006 and 2010. Healthcare utilization and charges associated with pertussis are substantial, suggesting the need for additional prevention and control strategies and a higher degree of clinical awareness on the part of health care providers. Additional research regarding pertussis in older populations is needed to substantiate these findings.


Clinical Genitourinary Cancer | 2013

Treatment Patterns: Targeted Therapies Indicated for First-Line Management of Metastatic Renal Cell Carcinoma in a Real-World Setting

Gregory Hess; Rohit Borker; Eileen Fonseca

Summary Pharmacogenetic/pharmacogenomic (PGx) testing is currently available for a wide range of health problems including cardiovascular disease, cancer, diabetes, autoimmune disorders, mental health disorders and infectious diseases. PGx contributes important information to the field of precision medicine by clarifying appropriate treatments for specific disease subtypes. Tangible benefits to patients including improved outcomes and reduced total health care costs have been observed. However, PGx-guided therapy faces many barriers to full integration into clinical practice and acceptance by stakeholders, whether practitioner, patient or payer. Each stakeholder has a unique perspective on the role of PGx testing, although all are similarly challenged with demonstrating or appraising its cost-to-benefit value. Coverage by insurers is a critical step in achieving widespread adoption of PGx testing. The acceleration of adoption of precision medicine in general and for PGx testing in particular will be determined by how quickly robust evidence can be accumulated that shows a return on investment for payers in terms of real dollars, for clinicians in terms of patient clinical responses, and for patients in terms of economic, health and quality of life outcomes. Trends in PGx testing utilization and uptake by payers in real-world practice are discussed; the role of pharmacoeconomics in assessing cost-effectiveness is highlighted using a case study in psychiatric care, and several issues that will affect adoption of PGx testing in the United States (US) over the next few years are reviewed.


Journal of the American College of Cardiology | 2018

CONTEMPORARY INCIDENCE OF RECURRENT CARDIOVASCULAR EVENTS 1 TO 3 YEARS AFTER MYOCARDIAL INFARCTION: LONGITUDINAL US ANALYSIS FROM NCDR REGISTRIES LINKED WITH ALL-PAYER CLAIMS DATABASE

John Spertus; Durgesh Bhandary; Eileen Fonseca; Narinder P Bhalla; Massimiliano Alfonzo Manzi; Greta L. Hoetzer; Amit P. Amin; Naeem Khan

BackgroundTo estimate the costs (paid amounts) of palliative radiation episodes of care (REOCs) to the bone for patients with bone metastases secondary to breast or prostate cancer.MethodsClaims-linked medical records from patients at 98 cancer treatment centers in 16 US states were analyzed. Inclusion criteria included a primary neoplasm of breast or prostate cancer with a secondary neoplasm of bone metastases; ≥2 visits to ≥1 radiation center during the study period (1 July 2008 through 31 December 2009) on or after the metastatic cancer diagnosis date; radiation therapy to ≥1 bone site; and ≥1 complete REOC as evidenced by a >30-day gap pre- and post-radiation therapy.ResultsThe total number of REOCs was 220 for 207 breast cancer patients and 233 for 213 prostate cancer patients. In the main analysis (which excluded records with unpopulated costs) the median number of fractions per a REOC for treatment of metastases was 10. Mean total radiation costs (i.e., radiation direct cost + cost of radiation-related procedures and visits) per REOC were


Circulation-cardiovascular Quality and Outcomes | 2012

Abstract 282: Dabigatran Etexilate is Associated with Shorter Hospital Length of Stay Compared to Warfarin in Patients with Nonvalvular Atrial Fibrillation

Eileen Fonseca; David R Walker; Jerrold Hill; Gregory P Hess

7457 for patients with breast cancer and


Circulation-cardiovascular Quality and Outcomes | 2013

Abstract 258: Dabigatran Etexilate is Associated with Shorter Hospital Length of Stay and Lower Hospital Costs Compared to Warfarin in Treatment-Naive, Newly-Diagnosed Nonvalvular Atrial Fibrillation Patients

Eileen Fonseca; David R Walker; Gregory P Hess

7553 for patients with prostate cancer. Results were consistent in sensitivity analyses excluding patients with unpopulated costs.ConclusionsIn the US, current use of radiation therapy for bone metastases is relatively costly and the use of multi-fraction schedules remains prevalent.


Journal of Managed Care Pharmacy | 2015

Hospital Admissions, Costs, and 30-Day Readmissions Among Newly Diagnosed Nonvalvular Atrial Fibrillation Patients Treated with Dabigatran Etexilate or Warfarin

Eileen Fonseca; Stephen Sander; Gregory Hess; Sabyasachi Ghosh

BACKGROUND Limited information on real-world treatment patterns of targeted agents for metastatic renal cell carcinoma (mRCC) is available to inform their use in clinical practice. PATIENTS AND METHODS This retrospective observational study used US claims data (from January 2007 to November 2010) to identify treatment patterns, including treatment duration and dosing, for molecular-targeted agents (sunitinib, sorafenib, pazopanib, bevacizumab, and temsirolimus) indicated in first-line management of advanced and/or mRCC. The study included adult patients with mRCC who were observable for ≥3 months after initiation of their first-line therapy with a targeted agent. Descriptive analyses were conducted for observed treatment patterns. RESULTS Of the 273 patients on first-line therapy identified and included in the sample, 235 patients were treated with sunitinib, 16 patients with sorafenib, and 15 patients with temsirolimus. Pazopanib and bevacizumab were excluded from the analysis due to the small sample size, n < 10. The median observed treatment durations were sunitinib 98 days, sorafenib 121 days, and temsirolimus 78 days. Approximately 76% (178/235) of patients who received sunitinib initiated therapy at the indicated dose of 50 mg; 65% of these patients were not observed filling a fourth prescription, whereas 23% maintained their starting dose and 12% experienced dose reduction at their 4+ fill. The mean starting dose for patients who initiated on sorafenib (n = 16) was 725 mg and for temsirolimus (n = 15) was 25 mg: their study samples were insufficient for further, meaningful dosing analyses. CONCLUSIONS Results of this study suggest that opportunities exist to improve treatment duration in clinical practice and to better understand influences on treatment and dose changes.


Journal of Clinical Oncology | 2016

Real-world use of first-line chemotherapy in post-menopausal patients with HR-positive HER2-negative metastatic breast cancer (mBC) in a US community oncology network.

Debra A. Patt; Xiaolong Jiao; Eileen Fonseca; Jamyia Clark; Patricia S. Fox; Ruslan Horblyuk; Lynn McRoy; Jack Mardekian; Bhakti Arondekar

Long-term risks of myocardial infarction (MI) survivors in contemporary US practice remains severely under recognized. Using a unique linkage of national cardiovascular registries and claims, we examined the longitudinal risks and the impact of a patients comorbidity burden on risk. Patients were


Circulation-cardiovascular Quality and Outcomes | 2015

Abstract 332: Toward Big Data: Integrating Cardiovascular Registry and Claims Data to Create a Clinical Practice-based Analytical Platform

Gregory Hess; Eileen Fonseca; James H. Beachy; Frederick A. Masoudi; John S. Rumsfeld

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Gregory Hess

University of Pennsylvania

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Patricia S. Fox

University of Texas MD Anderson Cancer Center

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