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Biomedical subjects

Steven R Feldman

Publications and source records attributed to Steven R Feldman.

At least 73 records · Page 4Linked to original sources
PubMed2005

Medication-related factors affecting health care outcomes and costs for patients with psoriasis in the United States.

BACKGROUND: The impact of psoriasis medication therapy on costs and patient outcomes in large nationally representative samples needs further examination. OBJECTIVE: This study examined the association between factors related to medication use, health status, and health care costs associated with psoriasis in the United States. METHODS: A cross-sectional cohort study was performed using the 2000 Medical Expenditure Panel Survey database. Information on health care service use, health status (EuroQol-5D instrument), and patient demographics were obtained from the database representing approximately 1.1 million patients with psoriasis. EuroQol was used in the Medical Expenditure Panel Survey. RESULTS: Weighted multiple linear regression analysis indicated that use of topical corticosteroid therapy was associated with a decrease in psoriasis-specific health care costs (53.2% lower than average costs vs patients using no medications, P = .022) and better health status (34.0% higher than average scores vs patients using no medications, P = .006). CONCLUSIONS: We observed an association with topical corticosteroids for treatment of psoriasis on health care outcomes and costs.

Administration, Topical↗
PubMed2005

Extended efalizumab therapy improves chronic plaque psoriasis: results from a randomized phase III trial.

BACKGROUND: Efalizumab inhibits multiple T-cell-mediated processes. OBJECTIVE: To evaluate 12- and 24-week efalizumab therapy for psoriasis. METHODS: In this phase III, randomized, double-blind trial, 498 patients received subcutaneous 1 or 2 mg/kg/wk efalizumab or placebo for 12 weeks. Efalizumab-treated patients who achieved <75% Psoriasis Area and Severity Index improvement (PASI-75) were re-randomized to a second 12-week course of treatment. Results At week 12, 39% and 27% of efalizumab-treated patients (1 and 2 mg/kg, respectively) achieved PASI-75 (vs 2% placebo; P < .001, both dose groups). At week 24, an additional 20% of efalizumab-treated patients achieved PASI-75 (vs placebo 7%, P = .018). Efalizumab was well tolerated. CONCLUSION: Twelve-week efalizumab treatment resulted in significant improvement; extension of therapy to 24 weeks resulted in additional improvement in patients who initially had not achieved PASI-75. There were no significant changes in safety profile during weeks 13-24.

Adult↗
PubMed2005

Traditional systemic treatments have not fully met the needs of psoriasis patients: results from a national survey.

BACKGROUND: Many psoriasis patients are dissatisfied with current therapies. However, patient-centered levels of satisfaction with individual treatments have not been well described. OBJECTIVE: To assess patients' satisfaction with 4 systemic treatment options available before 2002. METHODS: We used data from a recent national survey. Psoriasis patients were randomly recruited from the general US population, members of the Psoriasis Foundation, and persons who contacted the Psoriasis Foundation but did not join. The interview included questions about use and satisfaction with specific Psoriasis therapy. RESULTS: Of 1197 psoriasis patients interviewed, 311 (26%) indicated current or past use of methotrexate, psoralen plus ultaviolet A (PUVA), cyclosporin, and/or acitretin (users). Compared with those who had never used any of these systemic therapies, users reported more extensive disease (adjusted odds ratio [OR] = 2.90, 95% confidence interval [CI] = 1.87-4.49) and higher Psoriasis Disability Index scores (category V: adjusted OR = 2.31, 95% CI = 1.22-4.36). After adjusting for these variables, more than one third of patients were dissatisfied with each therapy, except for PUVA (14%). Patients were most satisfied with methotrexate and PUVA. However, less than 40% of the users indicated they were very satisfied with any of the 4 therapies assessed. Only 10% of persons who ever used cyclosporin were currently using it. In a paired analysis, cyclosporin users were significantly less satisfied with cyclosporin than with other therapies ( P = .01). CONCLUSION: For most patients, none of the 4 systemic therapies widely utilized in 2002 for psoriasis were highly satisfactory. If we are to learn whether new treatments satisfy patients' needs, long term, prospective, comparative studies of heterogeneous patient populations that include patients' assessments are needed.

Acitretin↗
PubMed2005

Epidemiology of psoriatic arthritis in the population of the United States.

BACKGROUND: Estimates of the prevalence of psoriatic arthritis vary widely and are usually not determined by population-based studies. OBJECTIVES: We sought to determine the prevalence of psoriatic arthritis and the impact of the disease on quality of life in the US population. METHODS: Patients were selected randomly from the US population and were interviewed by telephone. Cases were defined as patients who reported a physician diagnosis of psoriasis and psoriatic arthritis. RESULTS: Interviews of 27,220 persons were conducted; 601 of the interviewees had psoriasis and 71 had psoriasis and psoriatic arthritis. The prevalence of psoriatic arthritis was 0.25% (95% confidence interval [CI]: 0.18%, 0.31%). The prevalence of psoriatic arthritis among patients with psoriasis was 11% (95% CI: 9%, 14%) and varied substantially based on self-reporting of the extent of skin involvement with psoriasis. Thirty-nine percent of patients with psoriatic arthritis indicated that it was a large problem in everyday life. LIMITATIONS: Psoriatic arthritis was classified on the basis of the patient's self-report. CONCLUSION: Psoriatic arthritis affects an estimated 520,000 patients in the US population, and many rate it as a large problem in everyday life. The prevalence varies widely based on the extent of skin involvement, which demonstrates the importance of performing broadly representative studies to measure the prevalence of psoriatic arthritis.

Adult↗
PubMed2005

The cutaneous surgery experience of multiple specialties in the Medicare population.

BACKGROUND: There has been tremendous growth in the performance of ambulatory surgical procedures. Traditional forms of peer review, commonplace for hospital-based procedures, are not typically performed in the office-based setting. Hospital credentialing of physicians has been suggested to be a means of assuring patient safety. Credentialing committees may be unaware of the level of experience of typical office-based physicians who perform cutaneous surgery. PURPOSE: To compare the levels of cutaneous surgery experience of dermatologists and other surgical specialists. METHODS: Medicare claims data on number of cutaneous surgery procedures performed by various medical disciplines, including dermatologists, plastic surgeons, general surgeons, and others, were obtained from the 1998-1999 Medicare Current Beneficiary Survey (MCBS) and analyzed. The number of physicians in each specialty was used to normalize the data to a per physician basis. RESULTS: Dermatologists performed half (50%) of the complex repairs and most of the excisions (58%) and intermediate repairs (62%). Dermatologists performed more flaps (40% of all flaps) than any other specialty, while plastic surgeons performed more total grafts (38%) than any other specialty. Dermatologists and plastic surgeons performed similar numbers of full-thickness skin grafts, while plastic surgeons performed more split-thickness skin grafts. CONCLUSION: As dermatologists seek hospital credentials for performing cutaneous surgery procedures, these data should help surgical colleagues understand the typical level of experience of their dermatologist colleagues.

Clinical Competence↗
PubMed2005

Decision points for the initiation of systemic treatment for psoriasis.

Psoriasis has a tremendous effect on health-related quality of life. Phototherapy and systemic treatments are used for patients with more debilitating (physically and emotionally) forms of the disease. These treatments can be extremely effective but can also have potentially significant adverse effects. The decision to undertake systemic treatment of psoriasis is a complex one that requires both experience and judgment. With the recent advent of new biologic systemic drugs for moderate to severe psoriasis, the need to clarify patient candidates for systemic therapy has become very important. Here, we present a diagnostic algorithm and a formal measure, the Koo-Menter Psoriasis Instrument (KMPI), to aid in identifying patients that would benefit from systemic therapy. In addition, the KMPI can be used to document and justify treatment decisions for health care payers. While the decision to undertake systemic treatment and the choice of specific treatment plan must ultimately be made mutually by the patient and physician, these tools are designed to provide information that will be valuable in these determinations.

Algorithms↗
PubMed2005

The extent of dermatopathology education: a comparison of pathology and dermatology.

An indispensable component of all pathology and dermatology residencies is obtaining proficiency in the area of dermatopathology. The purpose of this study is to quantify dermatopathology training in pathology and dermatology residencies and the amount of continuing medical education in dermatopathology in leading journals of both fields. Dermatology residents complete more hours of dermatopathology than pathology residents. There is also more dermatopathology in the dermatology literature than in the pathology literature. Dermatopathology falls into the scope of both pathology and dermatology practice.

Dermatology↗
PubMed2005

Etanercept improves the health-related quality of life of patients with psoriasis: results of a phase III randomized clinical trial.

In this randomized, double-blind, phase III trial, patients with psoriasis received etanercept for 24 weeks or placebo for 12 weeks followed by etanercept for 12 weeks. At week 12, improvement in Dermatology Life Quality Index was 47% to 61% with etanercept compared with 11% with placebo (P < .0001). Etanercept rapidly and substantially improved patients' health-related quality of life.

Adult↗
PubMed2005

The impact of biologics on the quality of life of psoriasis patients and the economics of psoriasis care.

Psoriasis has a tremendous impact on patients' lives, affecting them physically, psychologically, and socially. Thus, it is not merely a cosmetic concern and often warrants appropriately aggressive treatment. Traditional treatments for moderate-to-severe psoriasis include phototherapy, oral retinoids, methotrexate, and cyclosporine. Newer biologics combat the immunologic mechanism responsible for psoriasis and, to date, carry a more favorable side effect profile. We examined the impact on quality of life of biologics and assessed their total direct costs to psoriasis patients. Biologic treatments significantly improve the quality of life of psoriasis patients; however, they cost significantly more than traditional therapies. This difference calls for physicians to weigh the costs and benefits of biologic therapies and compare them to those of traditional treatments when considering care for psoriasis patients.

Biological Products↗
PubMed2005

Infliximab for inpatient psoriasis management--is there a role?

BACKGROUND: While outpatient management is a realistic goal for most psoriasis patients, inpatient hospitalization may be required for severe acute exacerbations. The paradigm of inpatient psoriasis treatment has changed as reflected in an overall decline in admissions as well as the introduction of several new agents for patients with moderate to severe disease. With these changes as well as the changes in inpatient health care delivery, the costs of inpatient psoriasis therapy need to be re-examined. PURPOSE: To determine the mean charges and length of stay associated with inpatient admissions for psoriasis and compare these with the potential charges for infliximab administration in the inpatient setting. METHODS: Inpatient psoriasis admissions were identified from the State of Maryland Health Services Cost Review Commission (HSCRC) non-confidential database from 1994 to 2003. The mean length of stay and total charges associated with psoriasis admissions were determined and adjusted to current values based upon the hospital costs component of the Consumer Price Index (CPI). The potential charges for infliximab administration were then estimated according to a presumed treatment paradigm and based on median Medicare reimbursement rates. RESULTS: The mean length of stay for an inpatient psoriasis patient was 4.9 days, and the mean CPI adjusted total charges from 1994 to 2003 were $6736. In 2003, the mean total charges for a psoriasis admission were $7578. The total estimated charges for a 2-day inpatient hospitalization with infliximab administration were $6256. CONCLUSIONS: Although infliximab therapy is not currently approved for psoriasis therapy it does have efficacy and may be a first-line therapy for inpatient treatment. Additionally, the high cost of infliximab may be offset by a decreased overall length of stay and its use is therefore potentially justified.

Antibodies, Monoclonal↗
PubMed2005

The comorbid state of psoriasis patients in a university dermatology practice.

BACKGROUND: Psoriasis treatment is frequently complicated by the various types and severities of disease as well as the large number of therapies available. Another critical consideration in treatment planning is the presence of comorbid diseases. PURPOSE: The purpose of this study was to evaluate the relative prevalence of major comorbid disease states in patients with psoriasis and to identify significant predictors of these concurrent diseases in such patients. METHODS: A retrospective chart review of 753 patients from an academic dermatology practice was performed. The patients were identified by ICD-9 code for psoriasis in billing records of patients seen between 1997 and 2000. Data on comorbidities were compiled from review of electronic chart notes from all physician visits in the university practice. RESULTS: Comorbid diagnoses were listed in 551 out of 753 (73%) charts. As would be expected, hypertension, dyslipidaemia, diabetes and heart disease were the most common comorbidities; renal failure and hepatitis were least likely. Hepatitis was associated with use of systemic therapies (odds ratio = 2.19) and non-white race. When compared with national prevalence estimates, psoriasis patients had increased heart disease, hypertension, diabetes and emphysema; however, these findings must be interpreted with some caution. CONCLUSIONS: Comorbid diseases are common in psoriasis patients and should be taken into account during treatment planning and surveillance; they may pose unique challenges in caring for patients with psoriasis, particularly those requiring systemic therapy.

Academic Medical Centers↗
PubMed2005

The role of commercial tanning beds and ultraviolet A light in the treatment of psoriasis.

BACKGROUND: Phototherapy is an effective, safe psoriasis treatment administered via office-based units or home devices. There is controversy over the use of commercial tanning beds; ultraviolet B (UVB) has documented efficacy although commercial beds emit largely UVA. OBJECTIVE: To determine the efficacy of UVA and the role of commercial tanning beds in treating psoriasis. METHODS: A literature search of UVA and commercial tanning was performed. RESULTS: UVA can be effective for psoriasis, but achieving the high doses required may not be practical. Tanning beds do emit UVB although amounts are variable. Because of variability in UVA and UVB output in different tanning bulbs, it is difficult to predict response rates using commercial tanning beds. CONCLUSIONS: UVA can be used to treat psoriasis but may not be practical. Commercial tanning beds, emitting both UVA and UVB, have a role in treating psoriasis as an alternative to office-based therapy.

Heliotherapy↗
PubMed2005

The rise of the generic drug market and its implications for dermatology.

BACKGROUND: Recent data from the pharmaceutical industry suggest that generic medications are occupying an increasing percentage of the prescription drug market. OBJECTIVE: The objective of this paper was to review the trends in branded and generic dermatological and overall medications in the United States. METHODS: A thorough literature search of research papers for the period 1990-2003 was performed. In addition, we utilized data from a number of medical databases to obtain and compare information on the manufacturing, production, patents and prescription of branded and generic drugs. RESULTS: Two of the top 10 drugs used exclusively for dermatological conditions prescribed in 2003 were generics. For all drugs, the number of generic equivalents increased from 2 (in 1990) to 6 (in 2003) of the top 10 prescription drugs. CONCLUSIONS: The economic, social and scientific implications of the rising prominence of generic drugs are incredibly complex. Dermatologists, pharmacists, pharmacy benefit managers, and health policy makers should consider medication decisions carefully.

Dermatologic Agents↗
PubMed2005

A reappraisal of the concept of suppressive versus remittive psoriasis treatments.

Among the ways to characterize the many treatments for psoriasis is to distinguish suppressive from remittive therapies. Remittive therapies are thought to be treatments that result in a prolonged period of disease remission even after stopping the drug, while suppressive treatments are thought to work only during the treatment period. However, apparent differences in remittive and suppressive properties may be due to the remitting and relapsing nature of psoriasis and the order in which treatments are used in patients. Few clinical trials have compared the suppressive versus remittive properties of different treatments. Given the adverse events and expense associated with many psoriasis therapies, a major implication is that psoriasis patients who have cleared on therapy should probably be tested at intervals to see if they can be tapered off their medication without loss of control of their disease.

Humans↗
PubMed2005

Trends in prescription of acne medication in the US: shift from antibiotic to non-antibiotic treatment.

AIM: To describe trends in the prescription of medication for acne vulgaris in the USA from 1990 to 2002 with particular reference to the shift from antibiotic to non-antibiotic treatment. METHODS: Retrospective cross-sectional observational study which analysed the data from the 4922 patient visits for acne vulgaris from the 1990-2002 National Ambulatory Medical Care Survey (NAMCS) to assess medications mentioned or prescribed at office visits for acne vulgaris. We specifically analysed visits for benzoyl peroxide or combination benzoyl peroxide products, topical retinoids, clindamycin, erythromycin, tetracycline group antibiotics and isotretinoin. A priori predictions were made for changes in physician behaviour over time, and were tested by regression. Multivariate regression also assessed the impact of demographic variables such as patient age, gender, race and type of physician seen on prescribing behaviour. RESULTS: From 1990 to 2002 there were significant declines (p<0.01) in the likelihood of use of several drug classes that are reliant on antimicrobial mechanisms for acne including the following: benzoyl peroxide, topical clindamycin, oral erythromycin and tetracycline group antibiotics. There were significant increases in likelihood of utilization for agents not reliant on antimicrobial mechanisms including topical retinoids and oral isotretinoin during this period. These changes in utilization were not affected by controlling for demographic factors in multivariate analysis. CONCLUSION: There has been a shift towards non-antibiotic treatment in acne management. Growing awareness of antibiotic-resistant Propionibacterium species may contribute to increased use of topical and systemic retinoid agents.

Acne Vulgaris↗