Publications by authors named "Igor Snast"

Background: Vitiligo-like leukoderma is being increasingly reported in patients with breast cancer treated with cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors.

Objective: The aim of the study was to systematically review the characteristics of CDK4/6 inhibitor-induced vitiligo-like leukoderma.

Methods: A comprehensive literature search was conducted to identify published cases of vitiligo-like leukoderma following CDK4/6 inhibitor therapy administered for advanced breast cancer.

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Background: Tefillin are a religious article worn by Jewish men during daily prayer. Tefillin dermatitis secondary to potassium dichromate sensitivity is recognised, but data remain sparse.

Objective: To investigate the prevalence and clinical characteristics of tefillin dermatitis.

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Background: Pincer nail deformity (PND) is a common toenail disorder characterized by transverse over-curvature of the nail plate. It can cause severe pain, chronic inflammation, and recurrent infections. Both conservative and surgical treatment options carry different disadvantages of limited efficacy, high recurrence rate, and poor cosmetic outcome.

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Hair removal with lasers and intense pulsed light (IPL) is considered safe. However, data on the efficacy and safety of these procedures specifically in the pediatric population remain sparse. To determine the efficacy and safety of lasers and IPL for hair reduction in children and adolescents, a systematic review was conducted of original studies evaluating hair removal with lasers or IPL in patients aged less than 18 years.

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Article Synopsis
  • The study examines the effects of a 25-hour fast during Yom Kippur on patients with acute hepatic porphyria (AHP), specifically focusing on hereditary coproporphyria (HCP) and variegate porphyria (VP).
  • A total of 21 HCP and 40 VP patients participated, with 30 fasting and 31 non-fasting; most fasting patients (96.67%) reported no symptoms post-fast.
  • The research concluded that fasting did not significantly increase the risk of acute attacks in stable patients, suggesting it is likely safe for these individuals.
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Actinic keratoses are common cutaneous lesions with a potential to progress to invasive squamous cell carcinoma. Therefore, treatment is crucial. The Tixel® is a noninvasive thermomechanical device designed to transfer heat to the upper dermis in a controlled manner according to a predetermined setting.

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Background: There is a paucity of data regarding demodicidosis-associated facial hyperpigmentation.

Objective: To delineate the clinical, dermoscopic, and histopathologic features of demodicidosis-associated facial hyperpigmentation.

Methods: Clinical and diagnostic data were collected from the medical files of patients who were referred to our outpatient dermatology clinic in 2006-2019 for evaluation of facial hyperpigmentation and were diagnosed with demodicidosis.

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The sequential application of fractional ablative/10,600 nm/CO followed by 1570 nm non-ablative laser treatment might produce better results than applying either laser treatment alone. However, histological data regarding the safety of this combination is lacking. This study aimed to assess and compare clinical effects, histological tissue damage, and wound healing after monochromatic and sequential fractional laser treatments.

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Background: Paradoxical hypertrichosis (PH) is an uncommon, poorly understood adverse effect associated with laser or intense pulsed light treatment for hair removal.

Objective: The objective of this study was to conduct a systematic review and meta-analysis to determine PH prevalence and associated risk factors.

Methods: We conducted a systematic review and meta-analysis of studies evaluating hair removal with lasers or intense pulsed light.

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Solar urticaria is a well-recognized photodermatosis, sometimes accompanied by angioedema. However, isolated solar angioedema (ISA) is a rare and unrecognized entity. The purpose of our work was to systematically review the available data on ISA.

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The pulsed dye laser (PDL) is the standard treatment for port-wine stains (PWS). Maximal improvement occurs after multiple treatment sessions; however, the optimal treatment interval has yet to be determined. The aim of this study was to review whether there is an association between PDL treatment interval and outcome of PWS.

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Background: Inherited genetic erythropoietic protoporphyria (EPP) is characterized by a photosensitive rash that emerges during infancy or early childhood. Acquired EPP can erupt at any age, even during adulthood, and is associated with hematological disorders. A third, less-studied type of EPP is also inherited but appears later in life (during adulthood).

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Hereditary coproporphyria (HCP) and variegate porphyria (VP) are referred to as neurocutaneous porphyrias (NCP). Data concerning their systemic presentation are limited and no direct attempt of comparison of the two has ever been made. Our aim was to describe the type and frequency of systemic manifestations of NCPs in Israeli patients.

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Article Synopsis
  • The study examined the effectiveness of topical treatments for managing the rash caused by epidermal growth factor receptor inhibitors (EGFRIs) in cancer patients, which occurs in 60-85% of cases.
  • In a randomized trial, patients received either a combination ointment (chloramphenicol and prednisolone), chloramphenicol alone, or aqua cream to see how they influenced rash severity.
  • Results showed that the combination ointment significantly reduced the incidence of a specific type of significant rash compared to the aqua cream, suggesting it is a better prophylactic treatment.
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Background: There are three major types of genetic cutaneous porphyrias (GCP): erythropoietic protoporphyria (EPP), variegate porphyria (VP), and hereditary coproporphyria (HCP). Scarce data are available regarding their impact on patients' quality of life in the Mediterranean region.

Purpose: To describe the cutaneous features of GCP in Israel.

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Background: Genital warts, caused by the human papillomavirus, are a common sexually transmitted disease. The warts can regress spontaneously or exhibit a persistent clinical course. Various therapeutic modalities are available, yet none is curative, and there may be recurrences.

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Cutaneous viral warts (CVW), caused by human papillomavirus, often have a self-limited course. However, some patients experience a recalcitrant disease despite treatment. Retinoids are considered the mainstay of therapy in many dermatologic diseases.

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Background: Surgery is the mainstay of treatment for non-melanoma skin cancer. Lasers are an additional option.

Objective: The objective of this study was to review the literature on the efficacy and safety of lasers for the treatment of non-melanoma skin cancer.

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Introduction: In a randomized prospective trial, adjuvant rituximab was more efficacious than corticosteroids alone in the treatment of pemphigus; however, real-life data are limited. Rituximab treatment for pemphigus has only recently been introduced to the Israeli health basket. Previously, patients received rituximab if they paid out of pocket or through private insurance, separating patients into 2 treatment groups, mostly based on economic capability.

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High levels of efficacy were demonstrated in randomized controlled trials assessing the efficacy of guselkumab; however, real-life data are lacking. In this retrospective cohort study, we assessed the efficacy and safety of guselkumab in a cohort of psoriasis patients heavily pretreated with biologic agents. Primary efficacy endpoint was the percentage of patients achieving ≥psoriasis area and severity index (PASI) 90 response at week 24.

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Introduction: Surgery is commonly regarded as the mainstay of treatment of extramammary Paget disease (EMPD); however, nonsurgical approaches have gained popularity in recent years.

Objectives: To review the published evidence for the efficacy and safety of nonsurgical modes of therapy for EMPD.

Methods: A systematic review and meta-analysis of nonsurgical EMPD treatments was performed.

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Background: Whole-body integrated positron emission tomography / contrast-enhanced computed tomography (PET/CT) scan is increasingly used in cutaneous lymphomas. However, the value of PET/CT in the detection of cutaneous lesions in primary cutaneous B-cell lymphoma (PCBCL) has barely been investigated.

Objectives: To investigate the diagnostic accuracy of PET/CT in tracking cutaneous involvement in PCBCL.

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Background: Erythropoietic protoporphyria (EPP) is a semi-dominantly inherited porphyria presenting with photosensitivity during early childhood. Acquired EPP has been reported; however, data regarding this rare disorder are scarce.

Purpose: To evaluate the characteristics of acquired EPP.

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Background: The association between body mass index (BMI) and acne is unclear.

Objective: To determine the association between BMI and acne in youths.

Methods: A nationwide, population-based, cross-sectional study was conducted in 2002-2015 by using medical data on 600,404 youths during compulsory military service.

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Article Synopsis
  • Biologic therapies for psoriasis can increase the risk of developing active tuberculosis (TB), even in patients who screened negative for latent TB infection (LTBI).
  • A systematic review of 51 studies found that most patients with active TB were male, averaging 48 years old, with a significant portion (73%) presenting extra-pulmonary forms of the disease, leading to a 7% mortality rate.
  • Clinicians should closely monitor psoriasis patients starting biologic treatments for signs of active TB, as symptoms can occur shortly after therapy begins.
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