Afsaneh Alavi

Update on necrobiosis lipoidica: A review of etiology, diagnosis, and treatment options

Necrobiosis lipoidica (NL) is a rare chronic granulomatous disease that has historically been associated with diabetes mellitus. Debate exists regarding the etiology and pathogenesis of NL with a widely accepted theory that microangiopathy plays a significant role. NL typically presents clinically as erythematous papules on the front of the lower extremities that can coalesce to form atrophic telangiectatic plaques. NL is usually a clinical diagnosis, but if the clinical suspicion is uncertain, skin biopsy specimen can help differentiate it from sarcoidosis, necrobiotic xanthogranuloma, and granuloma annulare. NL is a difficult disease to manage despite a large armamentarium of treatment options that include topical and intralesional corticosteroids, immunomodulators, biologics, platelet inhibitors, phototherapy, and surgery. Randomized control trials are lacking to evaluate the many treatment methods and establish a standard regimen of care. Disease complications such as ulceration are common, and lesions should also be monitored for transition to squamous cell carcinoma, a less common sequelae.

Diabetic foot ulcers: Part II. Management.

The management of diabetic foot ulcers can be optimized by using an interdisciplinary team approach addressing the correctable risk factors (ie, poor vascular supply, infection control and treatment, and plantar pressure redistribution) along with optimizing local wound care. Dermatologists can initiate diabetic foot care. The first step is recognizing that a loss of skin integrity (ie, a callus, blister, or ulcer) considerably increases the risk of preventable amputations. A holistic approach to wound assessment is required. Early detection and effective management of these ulcers can reduce complications, including preventable amputations and possible mortality.

Contact Allergens in Persons With Leg Ulcers: A Canadian Study in Contact Sensitization:

Individuals with chronic leg ulcers often develop contact allergic reactions to topical preparations used to treat their wounds and the surrounding skin. The objective of this study was to determine the frequency of positive patch test responses to common allergens in patients with leg ulcers or venous disease. A case series of 100 consecutive, consenting patients with chronic venous disease and other causes of leg ulcers that were available for patch testing were enrolled. The patients were tested with 38 common allergens, including those most relevant to leg ulcers. A total of 46% of the patients had at least 1 positive patch test response. Multiple reactions in the same patient were common. The most frequent groups of sensitizers were fragrances, lanolin, antibacterial agents, and rubber-related allergens. Though the prevalence of positive patch test reactions is high in this population, it is lower than commonly reported. This may be the result of clinical practice that considered the avoidance of common sensitizers in the management of patients with leg ulcers.

A Cross-Sectional Study in Kerman, Iran, on the Effect of Diabetic Foot Ulcer on Health-Related Quality of Life

This study describes the impact of diabetic foot ulcers (DFUs) on health-related quality of life (HRQoL) using a generic instrument including 8 domains. Data were obtained from 54 patients with DFU who were compared with 78 patients who had diabetes without foot ulcer. HRQoL was measured using the Iranian version of Medical Outcome Study–Short Form (SF-36). The fasting plasma glucose, creatinine, glycosylated hemoglobin (HbA1c), and urine microalbumin as well as ankle-brachial pressure index (ABI) were measured for all participants in the 2 groups. In all, 51.9% of patients with DFU had ABI scores of <0.9 compared with only 11.8% of the control group (P < .001). No differences were found in any of the treatment characteristics (oral/insulin therapy) between the 2 groups (case/control). HRQoL evaluated by the SF-36 questionnaire, in particular in the areas of physical function, is lower in patients with diabetes with foot ulcers compared with patients with diabetes without foot ulcers (41.04 ± 22.69 vs 56.67 ± 25.57; P < .01). After adjusting by sex, 2 domains of physical functioning and bodily pain as well as the total HRQoL score in patients with DFU were lower than in patients with diabetes (P < .001). This study showed that physical functioning and bodily pain along with total score of HRQoL were important aspects that were lower in patients with DFU than in patients with diabetes. Gender was considered as a confounding factor, which was omitted in multivariate analysis.

What's new: Management of venous leg ulcers: Approach to venous leg ulcers

Leg ulcerations are a common problem, with an estimated prevalence of 1% to 2% in the adult population. Venous leg ulcers are primarily treated in outpatient settings and often are managed by dermatologists. Recent advances in the diagnosis and treatment of leg ulcers combined with available evidence-based data will provide an update on this topic. A systematized approach and the judicious use of expensive advanced therapeutics are critical. Specialized arterial and venous studies are most commonly noninvasive. The ankle brachial pressure index can be performed with a handheld Doppler unit at the bedside by most clinicians. The vascular laboratory results and duplex Doppler findings are used to identify segmental defects and potential operative candidates. Studies of the venous system can also predict a subset of patients who may benefit from surgery. Successful leg ulcer management requires an interdisciplinary team to make the correct diagnosis, assess the vascular supply, and identify other modifiable factors to optimize healing. The aim of this continuing medical education article is to provide an update on the management of venous leg ulcers. Part I is focused on the approach to venous ulcer diagnostic testing.

Neutrophilic Dermatoses: An Update

Neutrophilic dermatoses constitute a heterogeneous group of dermatologic diseases, which are unified by the predominance of neutrophils within the inflammatory infiltrate on histopathology. The aims of this review were to provide an update on the clinical and histologic presentation of the main neutrophilic dermatoses and to develop a guide for clinical practice. A structured literature search of PubMed, Medline, and Embase was performed, using the key words “neutrophilic disorders”, “cutaneous small vessel vasculitis”, “Sweet’s syndrome”, “bowel associated dermatosis arthritis syndrome”, “Behcet’s”, “palisaded neutrophilic and granulomatous dermatosis”, “rheumatoid neutrophilic dermatitis”, and “pyoderma gangrenosum”. Related articles were screened for key terms and were included if appropriate. This group contains a wide spectrum of unique disorders, each with its own histologic and clinical subtleties, making specific diagnosis of a given entity within the group diagnostically challenging. The fact that overlapping forms of neutrophilic dermatoses, which share features of multiple neutrophilic dermatoses, are not uncommon makes the diagnoses more challenging.

A review of the clinical variants and the management of psoriasis.

PURPOSE To enhance the learners competence with knowledge of the clinical variants and management of psoriasis. TARGET AUDIENCE This continuing education activity is intended for physicians and nurses with an interest in skin and wound care. OBJECTIVES After participating in this educational activity, the participant should be better able to:1. Demonstrate knowledge of the types, symptoms, and diagnostic testing of psoriasis.2. Apply knowledge of psoriasis treatment to patient care scenarios. ABSTRACT Psoriasis is an inflammatory skin condition that is associated with various comorbidities. To the wound care physician, the Koebner phenomenon is of importance, as any superficial trauma can induce psoriasis. Particularly, periwound and joints are particularly susceptible to flare-ups of this condition. This review highlights the epidemiology and treatment of psoriasis.

Pyoderma Gangrenosum: An Update on Pathophysiology, Diagnosis and Treatment.

Pyoderma gangrenosum (PG) is a rare inflammatory neutrophilic disorder with prototypical clinical presentations. Its pathophysiology is complex and not fully explained. Recent information regarding the genetic basis of PG and the role of auto-inflammation provides a better understanding of the disease and new therapeutic targets. PG equally affects patients of both sexes and of any age. Uncontrolled cutaneous neutrophilic inflammation is the cornerstone in a genetically predisposed individual. Multimodality management is often required to reduce inflammation, optimize wound healing, and treat underlying disease. A gold standard for the management of PG does not exist and high-level evidence is limited. Multiple factors must be taken into account when deciding on the optimum treatment for individual patients: location, number and size of lesion/ulceration(s), extracutaneous involvement, presence of associated disease, cost, and side effects of treatment, as well as patient comorbidities and preferences. Refractory and rapidly progressive cases require early initiation of systemic therapy. Newer targeted therapies represent a promising pathway for the management of PG, and the main focus of this review is the management and evidence supporting the role of new targeted therapies in PG.

What's new: Management of venous leg ulcers: Treating venous leg ulcers

Venous leg ulcers account for approximately 70% of all leg ulcers and affect 2.2 million Americans annually. After a comprehensive patient and wound assessment, compression therapy remains the cornerstone of standard care. Adjuvant care with topical or systemic agents is used for wounds that do not heal within 4 weeks. Once healed, long-term compression therapy with stockings or surgical intervention will reduce the incidence of recurrence. This continuing medical education article aims to outline optimal management for patients with venous leg ulcers, highlighting the role of a multidisciplinary team in delivering high quality care.

Martorell hypertensive ischemic leg ulcer: an underdiagnosed Entity©.

PURPOSE: To enhance the learner’s competence with knowledge of care for patients with Martorell hypertensive ischemic leg ulcers. TARGET AUDIENCE: This continuing education activity is intended for physicians and nurses with an interest in skin and wound care. OBJECTIVES: After participating in this educational activity, the participant should be better able to: 1. Demonstrate knowledge of the pathogenesis of Martorell hypertensive ischemic leg ulcers (HYTILU) and differentiation of this ulcer from other causes of painful leg ulcers. 2. Apply current treatment recommendations for Martorell HYTILU to patient case scenarios. ABSTRACT Martorell hypertensive ischemic leg ulcer represents rapidly progressive and extremely painful ulcers that are frequently underdiagnosed. These occur most commonly on the lateral-dorsal calf and are associated with hypertension and diabetes. This article will synthesize a review of the literature for the accurate diagnosis and treatment of this painful debilitating condition.