Clinical, microbiological, immunological and imaging characteristics of tunnels and fistulas in hidradenitis suppurativa and Crohn's disease.

Hidradenitis suppurativa (HS) tunnels and Crohn's disease (CD) fistulas are a challenge to treat. Although pathogenic similarities have been described between HS and CD, recent studies indicate that clinical, microbiological, immunological and imaging characteristics differ between these diseases. This review highlights the differences between HS tunnels and CD fistulas. Next-generation sequencing studies demonstrate a microbiome in HS tunnels dominated by Porphyromonas spp., Prevotella spp. whereas no specific bacteria have been associated with cutaneous CD. Immunologically, TNF has been found upregulated in HS tunnels along with various interleukins (IL-8, IL-16, IL-1α and IL-1ß). In CD fistulas, Th1, Th17, IL-17, IFN-ɤ, TNF and IL-23 are increased. US imaging is an important tool in HS. US of HS tunnels depict hypoechoic band-like structure across skin layers in the dermis and/or hypodermis connected to the base of a widened hair follicle. In CD, MR imaging of simple perianal fistulas illustrates a linear, non-branching inflammatory tract relating to an internal opening in the anus or low rectum and an external opening to the skin surface. An increased awareness of the immediate potential differences between HS tunnels and CD fistulas may optimize treatment regimens of these intractable skin manifestations.

Anemia in Patients with Hidradenitis Suppurativa: Prevalence and Risk Factors in a Hospital-Based Cohort.

We examined the prevalence and risk factors of anemia in patients with hidradenitis suppurativa (HS). The presence of anemia and information on risk factors was obtained through interview, clinical examination, and blood samples in a cohort of 367 consecutive patients with HS. The overall prevalence of anemia was 9.3% (11.4% in men and 8.1% in women). Altogether 7.9%, 7.0%, and 20.4% of patients with Hurley stage I, II, and III were anemic, respectively. Risk factors for anemia included increasing age, nonwhite ethnicity, sporadic (nonfamilial) HS, concomitant inflammatory bowel disease (IBD), absence of hypertension, and absence of infected lesions in the preceding month. We found significant inverse correlations between hemoglobin level and inflammatory markers in the blood. There were significant correlations between hemoglobin and lipid levels, and between lipid levels and inflammatory markers. Hemoglobin levels are lower in patients with more severe HS and with more chronic inflammatory burden compared to those with less disease severity. Older age, nonwhite ethnicity, sporadic (nonfamilial) HS, and IBD are the risk factors of anemia.

Treatment of hidradenitis suppurativa with tetracycline, doxycycline, or lymecycline: a prospective study.

AIM: To evaluate the clinical efficacy of tetracycline, doxycycline, and lymecycline in patients with hidradenitis suppurativa (HS). METHODS: A prospective study of three different treatment regimens in patients with HS; oral tetracycline 500 mg twice daily, oral doxycycline 100 mg twice daily, and oral lymecycline 300 mg twice daily were administered in patients with HS. Outcomes were change in Hidradenitis Suppurativa Score (HSS), Dermatology Life Quality Life index (DLQI), overall disease-related distress, boil-related pain, number of boils in the preceding month, fraction of patients with no boils in the preceding month, and Physician's Global Assessment (PGA) score at follow-up. RESULTS: In total, 108 patients, 73 (67.6%) women and 35 (32.4%) men, were included. Mean duration of treatment was 4.3 months. The mean HSS at baseline was 26.10 (SD 20.18) points, improving to 17.97 (SD 17.88) at follow-up, difference is 8.13 (95% CI 5.21-10.93), P < 0.0001. Highest improvement in HSS was observed in the tetracycline group. After multivariate adjustment, higher reduction in HSS was significantly associated with lower BMI, Hurley stage III, higher HSS at baseline, and higher number of boils in the preceding month at baseline. CONCLUSION: Oral treatment with tetracycline, doxycycline, and lymecycline appears effective and safe in HS patients. Tetracycline provided the greatest clinical improvement measured by HSS.

Fatal outcome of malignant transformation of hidradenitis suppurativa: A case report and literature review.

Squamous cell carcinoma arising in hidradenitis suppurativa (HS) is a rare albeit the most serious complication in HS, with a reported fatality of up to 42.9%. This calls for greater clinical awareness in patients with long-standing chronic HS.

Work productivity and activity impairment in patients with hidradenitis suppurativa: a cross-sectional study.

BACKGROUND: The understanding of absenteeism, presenteeism, and impairments in daily activities among patients with hidradenitis suppurativa (HS) is limited. We examined the impact of disease-specific factors of HS on work and daily life among a cohort of outpatients in a tertiary hospital setting. METHODS: Consecutive patients with HS were clinically evaluated and completed the Work Productivity and Activity Impairment (WPAI) questionnaire modified for HS. RESULTS: A total of 100 patients were included. Among 57 (57.0%) patients who were employed, 21.2% reported missing work, and 60.4% reported loss of work productivity during the preceding week as a result of HS. The overall work productivity was reduced by 26.6%. Seventy-two percent reported daily activity impairment, averaging 32.7% reduction in daily activities. Moderate to strong correlations were observed between reduction in quality of life and the WPAI outcomes; presenteeism, overall work impairment, and activity impairment (r = 0.50-0.77). There were moderate correlations between disease severity and the same outcomes (r = 0.35-0.46). The mean rank of activity impairment among patients with Hurley stage I was 34.8, 60.1 for Hurley stage II, and 64.0 for Hurley stage III, P < 0.0001. Unemployed patients had higher activity impairment compared with employed patients (mean rank: 61.0 vs. 42.6, P = 0.001). CONCLUSION: There are considerable rates of presenteeism, overall work impairment, and activity impairment in HS patients. Presenteeism, loss of overall work productivity, and activity impairment are positively correlated with greater disease severity and reduction in quality of life.

Guselkumab for hidradenitis suppurativa in a patient with concomitant Crohn's disease: Report and systematic literature review of effectiveness and safety.

Guselkumab appears to be safe and effective in the treatment of patients with HS, who do not respond to adalimumab and other systemic therapies. Guselkumab can be used in patients with comorbid Crohn's disease.

Association of Birth Weight, Childhood Body Mass Index, and Height With Risk of Hidradenitis Suppurativa.

Importance: There is a lack of evidence on the association of birth weight, childhood body mass index (BMI), change in BMI during childhood, and childhood height with subsequent risks of hidradenitis suppurativa (HS) in adulthood. Objective: To investigate the association of birth weight, childhood BMI, change in BMI during childhood, and childhood height with subsequent risks of HS in adulthood in a large Danish population-based cohort. Design, Setting, and Participants: This cohort study included 347 200 schoolchildren from the Copenhagen School Health Records Register born from 1930 to 1996 who were linked to the Danish National Patient Register of hospital discharge diagnoses to identify cases of HS. Birth weight was reported by parents or guardians, whereas childhood weight and height were measured by school physicians or nurses at ages 7 through 13 years. Cox proportional hazards regressions were used to estimate hazard ratios (HRs) and 95% CIs. Statistical analysis was performed from February 20, 2019, to May 15, 2019. Main Outcomes and Measures: A diagnosis of HS as recorded in the Danish National Patient Register. Results: Among the 347 200 children included in the study (175 750 boys) during the follow-up period from 1977 to 2017, 1037 individuals (677 females; median age at diagnosis, 39 years [range, 15-73 years]) received a diagnosis of HS. A nonlinear (U-shaped) association was found between birth weight and HS, such that both the lightest (2.00-2.75 kg; HR, 1.36 [95% CI, 1.10-1.68]) and the heaviest babies (4.26-5.50 kg; HR, 1.39 [95% CI, 1.01-1.93]) had increased risks of HS compared with normal-weight babies (3.26-3.75 kg; P = .04 for deviation from linearity). The risk of HS increased significantly with increasing BMI z score at each age from 7 to 13 years, from an HR of 1.32 (95% CI, 1.24-1.40) per BMI z score at 7 years of age to an HR of 1.50 (95% CI, 1.40-1.61) per BMI z score at 13 years of age. Compared with children with a normal weight at 7 and 13 years of age, those with a normal weight at 7 years of age and overweight at 13 years of age had a significantly increased risk of HS (HR, 2.11 [95% CI, 1.63-2.74]) and children with persistent overweight at both ages also had an increased risk of HS (HR, 2.61 [95% CI, 2.02-3.38]). Children with overweight at 7 years of age but with normal weight at 13 years of age did not have a significantly increased risk of HS (HR, 1.05 [95% CI, 0.67-1.67]). Childhood height at all ages was not associated with risk of HS (children at 7 years had an HR of 1.00 [95% CI, 0.94-1.07], and those 13 years had an HR of 1.06 [95% CI, 0.99-1.13], per z score). Conclusions and Relevance: This cohort study found that both the lightest and heaviest babies had increased risks of HS. Childhood BMI was positively and significantly associated with risk of HS development in adulthood. These findings suggest that returning to normal weight before puberty reduces risks of HS to levels observed in children who were never overweight. Childhood height was not associated with risk of HS.

Factors affecting quality of life in patients with hidradenitis suppurativa.

Hidradenitis suppurativa (HS) has a substantial impact on patients' lives. We identified factors associated with decreased quality of life (QoL) in patients with HS. Consecutive newly referred patients with HS attending a tertiary referral centre for HS were evaluated with the dermatology life quality index (DLQI). Clinical evaluation was performed according to the Hurley stage. Furthermore, disease duration, number of boils in the past month, boil-associated pain score, overall disease-related distress score, smoking status, employment status and comorbidities were recorded. A total of 339 patients with a mean age of 39.4 years were included; 218 (64.3%) females and 121 (35.7%) males. Of these, 96 (28.3%) had Hurley stage I, whereas 195 (57.5%) and 48 (14.2%) had Hurley II and III, respectively. The mean BMI was 29.0 (SD 7.1) kg/m2 and 75.2% of patients were current or former smokers. The mean overall DLQI score was 11.9 (SD 7.6). After mutual adjustment for clinical characteristics a significant difference in mean overall DLQI score was observed between severity groups (8.6 vs. 12.6 vs. 16.1, adjusted p < 0.001, for Hurley I, II and III, respectively), age group (12.1 vs. 12.1 vs. 12.5 vs. 7.1, adjusted p = 0.002, for ≤ 20, 21-40, 41-60 and > 60 years, respectively), employment status (11.0 vs. 14.6, adjusted p = 0.003, for employed and unemployed, respectively), presence of boils in the preceding month (8.3 vs. 13.6, adjusted p = 0.001, for no boils and presence of boils, respectively), higher overall disease-related distress score (6.3 vs. 13.9, adjusted p < 0.001, for low and high score, respectively), involvement of the groins (8.7 vs. 13.0, adjusted p = 0.035 for no and involvement, respectively), high number of anatomical regions involved (9.8 vs. 12.4 vs. 14.5, adjusted p = 0.007 for 0-1, 2 and ≥ 3 anatomical regions involved, respectively) and diabetes (11.5 vs. 15.2, adjusted p = 0.043, for no and diabetes, respectively). All ten individual DLQI question scores increased significantly with increasing Hurley stage. Patients with HS referred for specialized hospital care report substantial impact on the quality of life. Disease severity (Hurley stage), younger age, diabetes, recent and increasing disease activity and specific anogenital localization are major aggravating factors.

Therapeutic Response to Secukinumab in a 36-Year-Old Woman with Hidradenitis Suppurativa.

Hidradenitis suppurativa (HS) is a chronic inflammatory skin disorder involving primarily the intertriginous skin of the axillary, inguinal, genital, and perianal areas of the body. It is characterized by recurrent inflamed nodules and abscesses, resulting in fistulae, fibrosis, and scarring. We present a case of HS refractory to local and systemic antibiotic therapy as well as anti-TNF and anti-IL12/23 that was successfully treated with secukinumab (anti-IL17A).

The Danish version of the Radner Reading Chart: design and empirical testing of sentence optotypes in subjects of varying educational background.

PURPOSE: To develop 28 short texts to be used as sentence optotypes in a Danish version of the Radner Reading Chart for the measurement of reading acuity and speed. METHOD: Forty-six short texts of comparable lexical and grammatical difficulty were constructed. The short texts were tested together with two longer reference texts in 100 persons with visual acuity 6/6, of which 50 were university students (age: 24.7 ± 3.1 years, 36% males) and 50 were blue-collar workers (37.2 ± 13.4 years, 54% males). Study parameters were mean reading speed and error rate per participant, and mean reading time, variance and number of errors per short text. RESULTS: The students read the short texts faster than the blue-collar workers (184 ± 21.4 words per minute (wpm) versus 163 ± 26.3 wpm, p < 0.0001). There was a high correlation between the reference texts and the short texts [Pearson's correlation coefficient = 0.89 (95% CI 0.83-0.92)]. The mean reading time for each of the short texts ranged from 4.4 s to 5.8 s with a mean of 4.96 ± 0.35 s, and the median number of errors was eight. Twenty-eight short texts were selected for sentence optotypes with mean reading times between 4.6 s and 5.2 s, a mean standard deviation of 1.2 s or less and a number of errors of 17 per 100 persons or less. CONCLUSION: Reading time uniformity in the Danish version of the Radner Reading Chart was comparable to that of the original German version. Education had an influence on reading performance that may warrant stratification for this parameter when reading tests are used in clinical trials.