Geospatial analysis of access to dermatology care in Los Angeles County: a cross sectional study.

Geographic maldistribution of dermatologists contributes to disparities in access to dermatologic care. We aimed to investigate the geographic distribution of, and differences in wait times for medical dermatology services in Los Angeles County (LAC). We placed phone calls to 251 dermatology practices in LAC to ask for a new patient appointment for a changing mole. We found West LAC (Service Planning Area [SPA] 5) had the highest number of dermatologists and South LAC (SPA 6) had the lowest (26.1 versus 0 per 100,000 residents, P=0.01). Service Planning Area 6 has a higher non-White, uninsured, and impoverished population than SPA 5. Dermatology appointment wait times and Medicaid acceptance varied between SPAs but was not statistically significant (P=0.37 and P=0.20, respectively). Medicaid-accepting practices had a significantly longer mean wait time for an appointment than practices that did not accept Medicaid (26.1 versus 15.1 days, P=0.003). Regions with predominantly non-White, Spanish-speaking, and medically underinsured residents were found to be disproportionately lacking in dermatologists across LAC, which may contribute to impaired access to dermatology services in LAC.

Relationship Disturbances in Hidradenitis Suppurativa: A Patient Perspective.

Introduction: Hidradenitis suppurativa (HS) can significantly impact patients' relationships. Methods: Using an anonymous electronic survey, we aimed to determine what aspects of sexual relationships are affected by HS discomfort and patients' reluctance to discuss HS with their partner. Results: Among the 873 participants, 60.9% reported that some aspect of their relationship was affected by HS discomfort, with the greatest being their sexual encounters with spouse (49.1%). Furthermore, 43.0% (320) of participants reported feeling reluctant to discuss HS with their spouse/significant other, with the more common reason being fear of partner seeing boils and scars (84.7%). Multiple aspects of relationships can be affected by HS such as sexual encounters, overall relationship, and finding a relationship. Additionally, several communication barriers are present, such as fear of partner seeing boils and scars, partner thinking they had an infection such as a sexually transmitted disease, and fear of bloody or malodorous drainage, among others. The presence of anogenital pain, Hurley stage, gender, and age significantly affect these findings. Conclusion: Addressing HS-related relationship disturbances should be included in HS management.

Management Landscape of Pediatric Hidradenitis Suppurativa.

Introduction: Pediatric hidradenitis suppurativa (HS) is an understudied condition, and the literature describing the provider landscape for this disease is limited. We aim to characterize healthcare utilization in a cohort of pediatric HS patients at an academic institution. Methods: Patients diagnosed with HS before age 18 were identified via retrospective chart review using ICD-9/10 codes for HS. Data on demographics and HS providers were collected. Results: We found that half of the pediatric HS patients first presented to primary care with their HS symptoms. There was a mean delay in diagnosis of 2 years. Dermatologists and pediatricians were the principal HS care providers, and dermatologists most frequently prescribed treatment or procedures (63%). We also found a low rate of utilization of the HS specialty clinic (11%). Females, patients with more severe disease, and patients with earlier age of onset were more likely to be seen by a dermatologist. Conclusions: Dermatologists play a pivotal role in pediatric HS management as principal care providers for patients. Increasing HS awareness among primary care providers, including pediatricians, is critical for early diagnosis and initiation of treatment.

Impact of Pregnancy on Hidradenitis Suppurativa Disease Course: A Systematic Review and Meta-Analysis.

BACKGROUND: Hormones are thought to play a role in hidradenitis suppurativa (HS). However, data on the HS disease course during pregnancy and the postpartum period has not been well established. The objective of this study is to analyze the available literature to determine HS disease activity during pregnancy and the postpartum period. METHODS: The PubMed and Embase databases were systematically searched for relevant articles from database inception until November 22, 2020. The inclusion criteria were a study population with the diagnosis of HS and discussion of pregnancy impact on the HS disease course or postpartum flare. Study characteristics, patient demographics, HS severity, and HS disease course during pregnancy and the postpartum period were extracted by 2 independent reviewers. The quality of included studies was assessed using the Newcastle-Ottawa Scale for observational studies. Heterogeneity was assessed using Cochran's Q statistic and I2 index. The random-effects meta-analytical model was used. The primary study outcome was the pooled odds ratio of improvement or of worsening of HS disease activity during pregnancy. RESULTS: The systematic search identified 8 studies for analysis. There was a total of 672 cases for which data on the patient-reported HS disease course during pregnancy were available, and 164 cases for which data on patient-reported postpartum flare were available. In the meta-analyses, the rate of HS disease improvement was 24% (95% CI 0.13-0.40) and the rate of HS disease worsening was 20% (95% CI 0.11-0.34). Sixty percent (99/164) of patients experienced a postpartum flare. CONCLUSION: While about a quarter of women will experience an improvement in HS during pregnancy, the majority will have a stable or worsened disease course, and over half of patients will experience a postpartum flare. Close monitoring of HS patients is needed during pregnancy and postpartum periods, as patients may need continued, or even escalated, disease management.

Hyperhidrosis treatments in hidradenitis suppurativa: A systematic review.

Hyperhidrosis impairs quality of life (QOL) in hidradenitis suppurativa (HS) patients and may exacerbate HS. However, there is limited literature on whether hyperhidrosis treatments improve HS disease. To systematically review literature on efficacy and tolerability of hyperhidrosis treatments in HS patients. In May 2021, MEDLINE and EMBASE databases were systematically searched by two reviewers per PRISMA guidelines for articles on hyperhidrosis and HS. Sixteen articles met inclusion criteria (2 randomized controlled trials [RCTs], one case-control study, three cross-sectional studies, 10 case-studies/series), encompassing 252 HS patients across studies. They examined botulinum toxin A (BTX-A) (n = 6) and B (BTX-B) (n = 1), suction-curettage (n = 1), diode laser (n = 1), and microwave-based energy device (MED) (n = 3). Overall, BTX treatments improve HS severity, QOL, hyperhidrosis, and were well-tolerated. Suction-curettage did not improve disease. One HS patient tolerated diode laser well, with improvement in sweating and HS. One RCT studying MED was discontinued due to adverse events. Two studies reported MED-induced HS. BTX was overall helpful in HS patients, including in patients without concomitant hyperhidrosis. However, more prospective studies are needed to examine its utility in HS. There is potential harm of MEDs in HS. Most studies examining hyperhidrosis treatments in HS patients are low level of evidence. Larger RCTs should examine the efficacy and tolerability of hyperhidrosis treatments in HS.

Intralesional biologics for inflammatory dermatoses: A systematic review.

Biologic medications are systemic therapeutic options for inflammatory dermatoses. Local forms of administration are less well-studied. To provide a summary of intralesional (IL) administration of biologics for various non-malignant inflammatory dermatologic conditions reported in the literature. A systematic review was performed in the PubMed and Embase databases from 2000 to 2020. Inclusion criteria included the local use of biologic medications for non-malignant cutaneous conditions. Quality was assessed with the modified Oxford Centre for Evidence-Based Medicine ratings. A total of 19 articles describing the use of 5 biologic medications in 9 dermatologic conditions were identified, comprising 172 patients. Conditions successfully treated with intralesional biologics included pemphigus vulgaris (rituximab), granuloma faciale (rituximab), perianal Crohn's disease (infliximab), lichen sclerosus (adalimumab), and necrobiosis lipoidica (etanercept and infliximab). Intralesional etanercept reduced pruritus associated with keloids. A case report of the use of infliximab for pyoderma gangrenosum did not demonstrate any efficacy. There was no consistent effect noted with treatments for sarcoidosis (infliximab) or cutaneous lymphoid hyperplasia (rituximab). Local administration of biologic medications may offer an additional method of treating refractory inflammatory dermatoses, but further study is needed to develop standardized dosing protocols, clarify efficacy rates, and identify optimal treatment candidates.

Hidradenitis Suppurativa Specialty Clinics in the USA.

BACKGROUND: Hidradenitis suppurativa (HS) is a complex disease that is optimally managed with specialized care. Data on HS specialty clinics (HSSCs) are lacking. METHODS: HSSCs in the USA were identified on the HS Foundation website and analyzed for geographic location and clinic director demographics. RESULTS: We identified 29 HSSCs in 16 states, an increase from 22 in 2019. Thirty-four states currently lack a HSSC; the Mountain West and East South Central regions of the USA are particularly affected. Among HSSC directors, the majority (93.3%) are dermatologists, with slightly more women (53.3%) than men (46.7%). Most (86.7%) have an academic affiliation, and the majority (60%) graduated from residency <10 years ago. All directors are involved in research, and over half of HSSCs serve as HS clinical trial sites. CONCLUSIONS: The number of HSSCs in the USA has been growing, yet there remains a dearth in certain regions. Given that HS is a disease with high unmet need and a rapidly evolving therapeutic landscape, we encourage the establishment of more HSSCs to improve access to specialized care.

Physical and psychosocial comorbidities of pediatric hidradenitis suppurativa: A retrospective analysis.

BACKGROUND/OBJECTIVES: Hidradenitis suppurativa (HS) is understudied in the pediatric population. Adult HS patients are known to have a high comorbidity burden. We aimed to describe physical and psychosocial comorbidities in a cohort of pediatric HS patients. METHODS: A retrospective chart review of pediatric HS patients at a single academic institution was conducted. Data on patient demographics, disease characteristics, and physical and psychosocial comorbidities in pediatric patients with HS were collected and analyzed. RESULTS: Seventy-three pediatric patients were included in this study, 81% female. Mean (SD) age of HS disease onset was 12.6 (2.9) years. Comorbid conditions were reported in 68 of 73 (93%) patients. Significantly increased rates of several comorbidities were seen in our cohort as compared to the general US pediatric population. Metabolic and endocrine abnormalities were prevalent, with 52% (22/42) patients with obesity and 10% (6/59) with polycystic ovary syndrome. The most common cutaneous comorbidity was acne vulgaris, seen in 37% (27/73) of patients. Over one quarter (21/73, 29%) of patients had either an anxiety or depression disorder. Almost one-fifth (14/73, 19%) of our cohort had a diagnosis of asthma and other reactive airway diseases. Only one-third (24/73, 33%) of patients had documentation regarding impact of HS on their daily life. Overall, comorbidities largely did not significantly differ based on race, gender, or disease severity. CONCLUSIONS: Pediatric patients with HS face a high-comorbidity burden, especially with psychiatric conditions. Early identification, including routine mental health screening, and management of comorbidities is warranted in the pediatric HS population.

Bibliometric Analysis of the 50 Most Cited Publications in Hidradenitis Suppurativa.

BACKGROUND: Hidradenitis suppurativa (HS) has historically been a neglected disease. However, research in this field has grown exponentially in the past decade. METHODS: The top-cited HS articles from 1950 to 2020 were analyzed for authorship, study topic, study design, and senior author country of origin. RESULTS: We found that nearly half of the top 50 cited articles were published in the last decade, with a recent increase in the number of highly cited randomized controlled trials. Medical treatment is the most cited topic, with more attention on biologics over time. The past decade has seen an increase in highly cited articles on HS comorbidities, pathogenesis, and clinical practice guidelines. There has been a predominance of highly cited HS research from Europe; highly cited studies from Africa, Asia, Australia, and South America are lacking. CONCLUSIONS: Recent advances in HS research have focused on investigating HS pathogenesis and drug development, highlighting disease comorbidities, and improving evidence-based care. Studies in pathogenesis have translated into a paradigm shift in medical treatment from antibiotics to incorporation of targeted therapies in recent years. Encouraging growth of HS research in countries outside of North America and Europe may help to optimize HS care globally.

Pregnancy and breastfeeding in hidradenitis suppurativa: A review of medication safety.

Hidradenitis suppurativa (HS) is a chronic inflammatory disease that disproportionately affects women of childbearing age. Pregnancy influences HS severity for many women, thus diligent continued management throughout pregnancy and postpartum may be required. Herein, we provide an updated review of pregnancy and lactation safety data for HS medications, including topical antiseptic washes, topical and systemic antibiotics, biologic and nonbiologic immunomodulators, immunosuppressants, adjunct medical therapies, and pain medications, to help guide risk-benefit discussions between providers and HS patients.