Daniel Vardy

Association between psoriasis and the metabolic syndrome. A cross-sectional study.

Background: Previous reports have shown an association between inflammatory diseases such as systemic lupus erythematosus or rheumatoid arthritis and the metabolic syndrome. Recent data demonstrate that psoriasis is an inflammatory disease, suggesting that psoriasis may be one of the components of the metabolic syndrome. Objective: To assess the association between psoriasis and the metabolic syndrome. Methods: A cross-sectional study was performed utilizing the database of the Clalit Health Services. Case patients were defined as patients with a diagnosis of psoriasis vulgaris. Controls were randomly selected from the list of Clalit Health Services enrollees. The proportions of components of the metabolic syndrome (ischemic heart disease, hypertension, diabetes, obesity and dyslipidemia) were compared between case and control patients by univariate analyses. χ2 tests were used to compare categorical parameters between the groups. Logistic and linear regression models served to measure the association between psoriasis and the metabolic syndrome. Results: The study included 16,851 patients with psoriasis and 48,681 controls. In the case group, there were 8,449 men (50.1%) and 8,402 women (49.9%), with a mean age of 42.7 years (SD = 20.3, range = 2–111). Diabetes mellitus was present in 13.8% of the patients with psoriasis as compared to 7.3% of the controls (p < 0.001). Hypertension occurred in 27.5% of the patients with psoriasis and in 14.4% of the controls (p < 0.001). Obesity was present in 8.4% of the patients with psoriasis as opposed to 3.6% of the controls (p < 0.001). Ischemic heart disease was observed in 14.2% of the patients with psoriasis as compared to 7.1% of the controls (p < 0.001). Multivariate models adjusting for age, gender and smoking status of the patients demonstrated that psoriasis was associated with the metabolic syndrome (OR = 1.3, 95% CI = 1.1–1.4), ischemic heart disease (OR = 1.1, 95% CI = 1.0–1.2), diabetes mellitus (OR = 1.2, 95% CI = 1.0–1.3), hypertension (OR = 1.3, 95% CI = 1.2–1.5) and obesity (OR = 1.7, 95% CI = 1.5–1.9). Limitations: The study is designed as a case-control study, thus an association alone was proven and not causality. Conclusion: Our findings demonstrate a possible association between psoriasis and the metabolic syndrome. Appropriate treatment of the metabolic syndrome may be an important part of the management of patients with psoriasis.

Seasonality of Antibiotic-Resistant Streptococcus pneumoniae That Causes Acute Otitis Media: A Clue for an Antibiotic-Restriction Policy?

BACKGROUND It is unclear whether reducing antibiotic prescriptions can reduce rates of resistance once resistance becomes prevalent. We attempted to determine whether reduced antibiotic consumption, which is observed yearly in children during the warm season, is associated with a reduction in antibiotic resistance in pneumococcal acute otitis media (AOM). METHODS Antibiotic prescriptions and resistance were measured prospectively during 1999-2003 in 2 demographically distinct populations: Jewish and Bedouin children (aged <5 years) in southern Israel. Associations were assessed using seasonally clustered logistic regression models. RESULTS The study included 236,466 prescriptions and 3609 pneumococcal isolates. Prescription rates decreased during the warm months by 36% and 15% in Jewish and Bedouin children, respectively (P < .001 for the season). Among Jewish children, higher resistance rates were observed during the cold than the warm months (P < .001 for each antibiotic). This difference remained significant after adjustment for age, ethnic group, study year, history of antibiotic use, and serotype. The difference was not observed in Bedouin children. CONCLUSIONS Rapid seasonal decline in resistant AOM-causing pneumococci occurred only in Jewish children, among whom a marked prescribing seasonality was noted, and not in Bedouin children, among whom prescription was less seasonal. The rapid seasonal decrease in resistance associated with markedly reduced antibiotic use suggests that drug-resistant pneumococci may pay a fitness cost.

Community prescribing and resistant Streptococcus pneumoniae.

We investigated the association between prescribing antimicrobial agents and antimicrobial resistance of Streptococcus pneumoniae among children with acute otitis media in southern Israel. During a 6-year period, all prescriptions of a sample of ≈20% of Jewish and Bedouin children <5 years of age were recorded and all pneumococcal isolates from middle ear fluid were collected. Although antimicrobial drug use was significantly higher in Bedouin children, the proportion of S. pneumoniae isolates with penicillin MIC ≥1.0 μg/mL was significantly higher in Jewish children. In both populations, antimicrobial prescriptions were markedly reduced over time, especially for penicillins and erythromycin. In contrast, azithromycin prescriptions increased from 1998 to 2001 with a parallel increase in macrolide and multidrug resistance. Penicillin resistance was associated with macrolide resistance. These findings strongly suggest that azithromycin affects increased antimicrobial resistance, including multidrug resistance, in S. pneumoniae.

The association between antibiotic use in the community and nasopharyngeal carriage of antibiotic-resistant Streptococcus pneumoniae in Bedouin children.

Background: The objective of the study was to evaluate whether the increase in antibiotic-resistant Streptococcus pneumoniae carriage was associated with antibiotic use in the community in children in Southern Israel. Methods: All the prescriptions given to Bedouin children <5 years old enlisted in 2 sentinel primary pediatric clinics treating ∼20% of the Bedouin pediatric population of this age range were recorded, from 1998 to 2005. Nasopharyngeal pneumococcal isolates obtained during the same period from healthy children <5 years old were collected and antibiotic susceptibility was determined. Results: A total of 1488 of 1927 (77.7%) cultures were positive for S. pneumoniae. The proportion of S. pneumoniae with penicillin minimal inhibitory concentration ≥1.0 μg/mL increased from 8% to 21% (P < 0.01); resistance to clindamycin from 9% to 22%; resistance to erythromycin from 13% to 30%; resistance to tetracycline from 13% to 31%; and multidrug resistance from 16% to 30%. The total annual antibiotic prescription rates decreased by 19%, from 3867 to 3191 prescriptions per 1000 children (P < 0.001). This was mainly the result of a reduction in amoxicillin ± clavulanate prescriptions (from 3046 to 2582; P < 0.001). Oral cephalosporin, erythromycin and penicillin prescription rates decreased significantly as well (P < 0.001) whereas azithromycin prescription rates increased significantly (P < 0.001). Conclusions: We suggest that the increased carriage of S. pneumoniae resistant to multiple antibiotics is possibly associated to the increased azithromycin consumption. Reduction of total antibiotic use may not be sufficient as long as antibiotics with high potential to promote multidrug resistance, given their pharmacokinetics and pharmacodynamics characteristics, are widely used.

Nonattendance in Obstetrics and Gynecology Patients

Background: Nonattendance for obstetrics and gynecology (OB/GYN) appointments disrupts medical care and leads to misuse of valuable resources. We investigated factors associated with nonattendance in an outpatient OB/GYN clinic. Methods: Nonattendance was examined for a period of 1 year in first-time visitors of an ambulatory OB/GYN clinic. The effects of age, population sector, the treating physician, waiting time, and timing of the appointment on the proportions of nonattendance were assessed. χ2 tests and logistic regression were used for simple and multiple regression models. Results: A total of 8,883 visits were included (median age 36 years). The proportion of nonattendance was 30.1%: 19.9% among rural Jewish, 30.5% in urban Jewish, and 36% in Bedouins (p < 0.001). Nonattendance increased from 26.6% among those waiting up to 1 week to 32.3% among those who waited more than 15 days (p < 0.001) and decreased with age (p < 0.001). A multiple logistic regression model demonstrated that age, population sector and waiting time for an appointment were significantly associated with nonattendance. Conclusion: Nonattendance in OB/GYN patients is independently associated with age, population sector and waiting time for an appointment. It is suggested that various solutions should be carefully introduced assessed regarding routine patient scheduling in OB/GYN clinics.

Efficacious topical treatment for human cutaneous leishmaniasis with ethanolic lipid amphotericin B

Old World cutaneous leishmaniasis (CL) is a widespread and potentially disfiguring protozoa1 infection, caused by the infection of dermal macrophages with Leishmania parasites. Despite the various implemented measures to prevent the disease, there is a steady number of infected individuals who seek treatment. Systemic treatments available are very often unjustified owing to their toxicity (e.g., pentavalent antimonials) or to their variable efficacy (e.g., ketoconazole). Topical treatment, the obvious way to treat a localized skin disease, still poses a challenge. Paromomycin-containing preparations have proven effective in some cases (El-On et al., 1985), but not in others (KLAUS et al., 1994; BEN SALAH et al., 1995), and often cause substantial skin irritation. Amphotericin B (AmB), a potent antileishmanial antibiotic, has not been previously delivered topically to dermal lesions. We have recently reported preliminary results showing that a colloidal dispersion of AmB and cholesteryl sulphate, in the presence of 5% ethanol and in the absence of glucose, has significant therapeutic effect in the treatment of CL lesions. The presence of glucose, on the other hand, inhibited the therapeutic effect (VARDY et al., 1999). Here we present results obtained in 1999-2000 on the treatment of 17 patients with AmB, in a prospective placebo-controlled study. Each patient had at least 1 placebo-treated and 1 AmB-treated lesion.

Nonattendance in a dermatology clinic – a large sample analysis

Background  Previous studies have described factors determining non‐attendance at dermatology appointments in small sample sizes.

Cherry angiomas associated with exposure to bromides.

Cherry angiomas are the most common vascular proliferation; however, little is known about the pathogenesis and etiology of these lesions. We present two laboratory technicians who were exposed to brominated compounds for prolonged periods and who developed multiple cherry angiomas on the trunk and extremities. We suggest that the association between exposure to bromides and cherry angiomas should be investigated by a controlled study.

Treatment of multiple miliary osteoma cutis of the face with local application of tretinoin (all- trans retinoic acid): a case report and review of the literature

BACKGROUND Multiple miliary osteoma cutis of the face represents primary extra-skeletal bone formation that arises within the skin of the face. METHODS A 60-year-old woman with multiple miliary osteoma cutis of the face was treated by application of 0.05% tretinoin (all-trans-retinoic acid) cream nightly. RESULTS After 3 months of therapy there were fewer papules and a decrease in size of remaining lesions. In a literature search, it was found that local application of tretinoin was successful and achieved a decrease in the number of papules over the face in all patients with multiple miliary osteoma cutis of the face; however, the length of time to achieve response varied from a few weeks to 6 months. CONCLUSION It is suggested that local application of tretinoin cream should be considered in the therapy of multiple miliary osteoma cutis of the face, particularly when the lesions are small and superficial.BACKGROUND: Multiple miliary osteoma cutis of the face represents primary extra-skeletal bone formation that arises within the skin of the face. METHODS: A 60-year-old woman with multiple miliary osteoma cutis of the face was treated by application of 0.05% tretinoin (all- trans -retinoic acid) cream nightly. RESULTS: After 3 months of therapy there were fewer papules and a decrease in size of remaining lesions. In a literature search, it was found that local application of tretinoin was successful and achieved a decrease in the number of papules over the face in all patients with multiple miliary osteoma cutis of the face; however, the length of time to achieve response varied from a few weeks to 6 months. CONCLUSION: It is suggested that local application of tretinoin cream should be considered in the therapy of multiple miliary osteoma cutis of the face, particularly when the lesions are small and superficial.

Effectiveness of climatotherapy at the Dead Sea for psoriasis vulgaris : A community-oriented study introducing the 'Beer Sheva Psoriasis Severity Score'

Background: Climatotherapy at the Dead Sea (CDS) is a therapeutic modality for moderate to severe psoriasis vulgaris. Objective: To evaluate the effectiveness of CDS in patients with psoriasis, using the PASI score and a novel simplified tool for the assessment of psoriasis – the Beer Sheva Psoriasis Severity Score (BPSS). Methods: A total of 70 patients with psoriasis vulgaris were treated by CDS. In all patients, the severity of psoriasis was assessed before and after CDS using PASI score and BPSS. BPSS includes eight items that are recorded by the physician (total severity of the disease, and seven items relating to the physical distribution of the disease) and eight items that are recorded by the patient (total severity, physical and psychological severity, pruritus and assessment of involvement in the face, nails, palms and soles and genital regions). Results: The study included 70 patients (40 men, 30 women; age 19–78 years). There was a 75.9% reduction in PASI score, from a mean of 16.6±11.0 before treatment to 4.0±4.2 after treatment (p<0.001). There was a 57.5% reduction in BPSS, from a mean of 72.8±19.6 before treatment to 31.0±21.2 after treatment (p<0.001). PASI score significantly correlated with BPSS before CDS treatment (r = 0.59, p<0.001) and after CDS treatment (r = 0.53, p<0.001). Conclusion: CDS is an effective therapy for patients with psoriasis, as evaluated by either PASI score or BPSS. BPSS was considered shorter and more user‐friendly by the participating physicians.