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A mosaic of cells in a patient with systemic lupus erythematosus [Case Report]

Ricciardi, Daniel D; DiPillo, Frank; Bharany, Neerj; Yazici, Yusuf
PMID: 12233901
ISSN: 0315-162x
CID: 790012

Monitoring methotrexate hepatic toxicity in rheumatoid arthritis: is it time to update the guidelines? [Comment]

Yazici, Yusuf; Erkan, Doruk; Paget, Stephen A
PMID: 12180713
ISSN: 0315-162x
CID: 790022

Decreased flares of rheumatoid arthritis during the first year of etanercept treatment: further evidence of clinical effectiveness in the "real world"

Yazici, Y; Erkan, D; Kulman, I; Belostocki, K; Harrison, M J
OBJECTIVE:To determine the incidence of disease flare during the first year of etanercept treatment for 88 patients with rheumatoid arthritis (RA) and compare it with the incidence of flare in those same patients in the year before etanercept use. METHODS:The outpatient clinic charts of all patients with RA who were prescribed etanercept in or before September 1999, who also had at least one year's follow up in the same outpatient clinic, were surveyed. The primary outcome measure was the number of disease flares in one year before and after etanercept use. The secondary outcome measures included the number of patients who did and did not flare, how flares were treated, and the drug alterations that were necessary during the same two time intervals. RESULTS:The total number of flares for all patients in the year before etanercept treatment was 214 (mean (SD) 2.43 (1.75)). The number of flares in the first year of etanercept treatment decreased to 83 (mean 0.94 (1.07)) (p<0.0001). The total number of patients who had at least one flare in the year before etanercept use was 80; eight had no flares. In their first year of etanercept treatment, 50 patients had at least one flare; 38 had no flares (p<0.0001). Twenty one patients (24%) stopped using etanercept before completing one year's treatment. CONCLUSION/CONCLUSIONS:This study of patients with RA in the "real world" shows that etanercept is effective in reducing the number of RA flares.
PMID: 12079908
ISSN: 0003-4967
CID: 3459732

Physician treatment preferences in rheumatoid arthritis of differing disease severity and activity: the impact of cost on first-line therapy

Erkan, Doruk; Yazici, Yusuf; Harrison, Melanie J; Paget, Stephen A
OBJECTIVE: To conduct a pilot study to identify rheumatologists' treatment preferences for first-line rheumatoid arthritis (RA) therapy and determine whether pharmacoeconomic variables modify physician choice(s). METHODS: A questionnaire describing 3 different RA scenarios was mailed to American College of Rheumatology members within 4 geographic regions of the US. Physicians were asked to identify their choice(s) of first-line therapy for each of the cases, first taking cost into consideration, second without considering the influence of cost, and third identifying the therapy that would be chosen for either themselves or a family member. RESULTS: Three hundred seventy-five questionnaires out of a total of 994 (37.7%) were returned between 3/12/00 and 4/25/00. Hydroxychloroquine was the most commonly cited medication for a mild disease activity/severity presentation, and methotrexate for a moderate-to-severe disease activity/severity presentation. For the severe disease activity/severity presentation, when cost was not considered, 217 (65%) rheumatologists included new disease-modifying antirheumatic drugs (leflunomide, etanercept, and infliximab) in their choice of first-line agents; this number decreased to 47 (14%) when cost was a consideration. CONCLUSION: Pharmacoeconomics appear to play a dominant role in rheumatologists' choice of treatment regimens, at times contrary to the physician's perception of the effectiveness of a drug. Future studies should address physician preferences in more depth with respect to cost and its various components.
PMID: 12115159
ISSN: 0004-3591
CID: 790032

Reporting consistency in systemic lupus erythematosus patients: how reliable are patient histories?

Yazici, Y; Erkan, D; Harrison, M J; Peterson, M G; Yazici, H
Systemic lupus erythematosus (SLE) patients are frequently seen by multiple physicians and at multiple times. In each instance, most of the information important in clinical decision-making is gathered from the patient. There are no studies looking at reporting consistency of certain aspects of SLE patients' history. We studied this by administering the same nine-item questionnaire 4 months apart to the same cohort of SLE patients. In addition, a retrospective chart review was done to correlate the information obtained by prospective questioning and with that on the charts. Our results showed overall good consistency in the areas of general medical history, SLE-specific history and social history. The information gathered by the chart review, in general, went in parallel with that obtained by prospective questioning. This was also true for the poor correlation observed in the family history questions. Many studies and databases depend rather heavily on patient reporting and the quality of this information is usually not substantiated. Our study suggests that, even though SLE patients are generally consistent reporters of certain aspects of their histories, family history information provided is frequently not consistent with previous reporting.
PMID: 11898919
ISSN: 0961-2033
CID: 783742

High thrombosis rate after fetal loss in antiphospholipid syndrome: effective prophylaxis with aspirin

Erkan, D; Merrill, J T; Yazici, Y; Sammaritano, L; Buyon, J P; Lockshin, M D
PMID: 11407709
ISSN: 0004-3591
CID: 73546

The frequency and clinical characteristics of methotrexate (MTX) oral toxicity in rheumatoid arthritis (RA): a masked and controlled study

Ince, A; Yazici, Y; Hamuryudan, V; Yazici, H
To assess the frequency and clinical characteristics of methotrexate (MTX) oral toxicity in rheumatoid arthritis (RA) patients, 51 RA patients receiving MTX and 46 RA patients not receiving MTX were studied. A questionnaire, the credibility of which was tested on four separate patient groups including a group with Behcet's Syndrome, was used as a tool to determine the prevalence of stomatitis by a blind observer. In this first controlled study of the oral toxicity of MTX, prevalence of stomatitis was found in 37.2% in the group taking MTX and 19.5% in the group not taking MTX (P = 0.054). No statistical differences were detected with respect to number, duration, frequency, and site of stomatitis. Two of the 51 MTX taking patients temporarily reduced their MTX dosage and only one patient temporarily terminated MTX treatment. MTX and toxicity is usually of no major clinical concern in the treatment of RA.
PMID: 8894364
ISSN: 0770-3198
CID: 783752

The prevalence of Sjogren's syndrome in Behcet's syndrome

Gunaydin, I; Ustundag, C; Kaner, G; Pazarli, H; Yurdakul, S; Hamuryudan, V; Yazici, Y; Yazici, H
OBJECTIVE: The role of autoimmune mechanisms in Behcet's syndrome (BS) is debated. Sjogren's syndrome (SS) accompanies most autoimmune diseases. Thus we investigated the prevalence of SS in BS in a formal protocol. METHODS: The study was conducted in 2 phases. During the first phase subjective symptoms of dryness were blindly assessed by questionnaires and Schirmer I and Saxon tests were done in 67 patients with BS and 100 healthy and diseased controls. During the 2nd phase 30 patients with BS and 19 with rheumatoid arthritis (RA) had salivary gland biopsies along with rose bengal dye, Schirmer I and tear breakup time tests. RESULTS: During the first phase only patients with primary SS had significantly abnormal findings. However during the 2nd phase pathologic changes in salivary gland biopsies and positive RB tests were highly significantly more prevalent among patients with RA. CONCLUSION: SS is not a feature of BS.
PMID: 7799345
ISSN: 0315-162x
CID: 783762

Sebum production is increased in Behcet's syndrome and even more so in rheumatoid arthritis

Yazici, H; Mat, C; Deniz, S; Iscimen, A; Yurdakul, S; Tuzun, Y; Hekim, N; Yazici, Y
Sebum production is under hormonal control. We had shown that male sex is associated with more severe disease in Behcet's syndrome and the acneiform skin lesion of this disorder is not different from ordinary acne, an androgen-dependent lesion. Sebum excretion rate was higher in patients with Behcet's syndrome than in healthy controls, children and patients with ankylosing spondylitis. On the other hand, patients with rheumatoid arthritis had high levels of sebum excretion rate comparable to those found in patients with acne vulgaris. These suggest the presence of a sebotrophic hormone and/or other hormonal effects in Behcet's syndrome and rheumatoid arthritis.
PMID: 2964318
ISSN: 0392-856x
CID: 783772