Katharina Herberger

Cost-of-illness of chronic leg ulcers in Germany

Chronic wounds are important because of their frequency, their chronicity and high costs of treatment. However, there are few primary data on the cost‐of‐illness in Germany. The aim was to determine the cost‐of‐illness of venous leg ulcers (VLU) in Germany. Prospective cost‐of‐illness study was performed in 23 specialised wound centres throughout Germany. Direct, medical, non medical and indirect costs to the patient, statutory health insurers and society were documented. Thereover, health‐related quality of life (QoL) was recorded as intangible costs using the Freiburg quality of life assessment for wounds (FLQA‐w, Augustin). A total of 218 patients (62.1% female) were recruited consecutively. Mean age was 69.8 ± 12.0 years. The mean total cost of the ulcer per year and patient was €9569, [€8658.10 (92%) direct and €911.20 (8%) indirect costs]. Of the direct costs, €7630.70 was accounted for by the statutory health insurance and €1027.40 by the patient. Major cost factors were inpatient costs, outpatient care and non drug treatments. QoL was strikingly reduced in most patients. In Germany, VLU are associated with high direct and indirect costs. As a consequence, there is a need for early and qualified disease management. Deeper‐going cost‐of‐illness‐studies and cost‐benefit analyses are necessary if management of chronic wounds is to be improved.

Prevalence of chronic pruritus in Germany: results of a cross-sectional study in a sample working population of 11,730.

Background: Pruritus is a frequent symptom in many diseases; its prevalence in German adults is unknown. Objective: Our purpose was to assess the prevalence, severity and health care of chronic pruritus in the German working population. Methods: A cross-sectional observational study was conducted in employees of 144 German companies. Pruritus-specific data were obtained by standardized questions. Results: 11,730 people (53.2% male, 16–70 years, mean = 43.7 years) were suitable for analysis. The point prevalence of chronic pruritus (at least 6 weeks prior to data collection) was 16.8%. The prevalence increased with age from 12.3% (16–30 years) to 20.3% (61–70 years). A quarter of the affected persons had suffered from pruritus for >5 years, 47% had never sought medical advice, and 94% had not undergone any treatment. Conclusions: Chronic pruritus is a prevalent symptom in the working age population. A high proportion of people affected are not medically treated.

Prevalence of skin lesions and need for treatment in a cohort of 90 880 workers.

Background  Healthcare planning requires robust data on the prevalence and need for care of dermatological diseases. To date, no systematic data in population‐based samples are available for Germany.

Cost-of-illness of leg ulcers in the community.

Leg ulcer management is complex, time‐consuming and of high socio‐economic importance. Data on cost‐of‐illness in leg ulcer care are sparse. The objective of this study was to evaluate the cost‐of‐illness in leg ulcer treatment in the metropolitan area of Hamburg. About 147 institutions involved in wound care participated in a cross‐sectional study. Patients consecutively recruited underwent a standardised interview and clinical examination. Main economic outcomes were direct, indirect and intangible costs from a societal perspective. Five hundred and two patients with a mean age of 71 years and mean wound duration of 9 years were enrolled. Annual total costs summed up to a mean of 9060€ /patient/year (8288€ direct, 772€ indirect costs). Direct costs carried by statutory health insurances amounted to 7680€ , patients themselves paid on average 607€. Leg ulcer is associated with high costs for health insurances, patients and the society. Exploratory predictor analyses suggest that early, interprofessional disease‐management could lower treatment costs.

Associated factors and comorbidities in patients with pyoderma gangrenosum in Germany: a retrospective multicentric analysis in 259 patients

BackgroundPyoderma gangrenosum (PG) is a rarely diagnosed ulcerative neutrophilic dermatosis with unknown origin that has been poorly characterized in clinical studies so far. Consequently there have been significant discussions about its associated factors and comorbidities. The aim of our multicenter study was to analyze current data from patients in dermatologic wound care centers in Germany in order to describe associated factors and comorbidities in patients with PG.MethodsRetrospective clinical investigation of patients with PG from dermatologic wound care centers in Germany.ResultsWe received data from 259 patients with PG from 20 different dermatologic wound care centers in Germany. Of these 142 (54.8%) patients were female, 117 (45.2%) were male; with an age range of 21 to 95 years, and a mean of 58 years. In our patient population we found 45.6% with anemia, 44.8% with endocrine diseases, 12.4% with internal malignancies, 9.3% with chronic inflammatory bowel diseases and 4.3% with elevated creatinine levels. Moreover 25.5% of all patients had a diabetes mellitus with some aspects of potential association with the metabolic syndrome.ConclusionsOur study describes one of the world’s largest populations with PG. Beside the well-known association with chronic bowel diseases and neoplasms, a potentially relevant new aspect is an association with endocrine diseases, in particular the metabolic syndrome, thyroid dysfunctions and renal disorders. Our findings represent clinically relevant new aspects. This may help to describe the patients’ characteristics and help to understand the underlying pathophysiology in these often misdiagnosed patients.

Quality of life and satisfaction of patients with leg ulcers--results of a community-based study.

BACKGROUND Leg ulcers have a major socio-economic impact because of their frequency and societal costs. Patients with leg ulcers experience major Health related Quality of Life (HrQoL) impairments. The aim of the present study was to assess the disease-specific HrQoL and the influence of care on HrQoL with leg ulcer. PATIENTS AND METHODS A cross-sectional study was conducted in the metropolitan area of Hamburg to assess the quality of care as well as HrQoL in an unrestricted sample of patients with leg ulcers by questionnaires and subsequent clinical examinations. RESULTS A total of 530 patients were consecutively recruited across all wound care provider sections in the metropolitan area of Hamburg. 53 % of the patients were highly or very satisfied with the health services provided. Significant correlations were found between the disease-specific HrQoL, patient satisfaction and satisfaction with wound treatment. Furthermore, significant predictors of HrQoL were: inadequate pain therapy, insurance status, wound size, time required for dressing changes and wound etiology. Most relevant predictors for satisfaction with health services were: HrQoL, duration of wound, health insurance status and treatment by office-based physicians. In contrast, no statistically significant association with HrQoL and satisfaction was found for gender, living district, education, number of dressing changes per week and the number of comorbidities. CONCLUSIONS The results show that chronic leg ulceration has a major impact on patients HrQoL. Clinical and treatment characteristics, but not socio-demographic data, were predictors of HrQoL and satisfaction with health services. The systematic assessment of HrQoL in patients with leg ulcers across all sectors of health-care is a novum and provides important insights into the reality and quality of care.

Effectiveness of Advanced versus Conventional Wound Dressings on Healing of Chronic Wounds: Systematic Review and Meta-Analysis

Background: Wound dressings are essential in the treatment of chronic wounds and should be selected on valid and recent evidence. Objective: Effectiveness of advanced compared to conventional dressings for chronic wound healing. Methods: Comprehensive literature search, systematic review and meta-analyses of the results of advanced dressing studies on chronic wound treatment. Comprehensiveness and coverage of all relevant studies is the most striking difference in relation to other meta-analyses and systematic reviews. Results: The mean odds ratio of complete healing was 1.52 favouring advanced over conventional dressings in 65 controlled trials. In 287 study conditions including uncontrolled studies, mean odds were 0.97 (advanced dressings/controlled studies), 0.77 (conventional/controlled) and 0.47 (advanced/uncontrolled). The overall healing rate was 33%. When causal treatment was applied, a reduced effect was observed. The consideration of all types of chronic wounds, advanced wound dressings and studies resulted in more study effects, more reliable estimates of mean effects and more statistical power. These differences in the design are likely to explain the differences in the meta-analytic results. Conclusion: A general superiority of advanced dressings on complete healing was shown. The generalizability of the results is limited by the methodological and report quality within studies identified, unexplained heterogeneity in study effects and possibly by publication bias.

Epidemiology of chronic wounds in Germany: Analysis of statutory health insurance data.

Epidemiologic analyses in routine care of chronic wounds are scarce, and published studies show wide variations. This study analyzes the population‐based prevalence and incidence of chronic wounds in Germany. Secondary analyses of data from a German statutory health insurance with about 9 million insured persons were examined (2010 to 2012). Internal diagnostic validations were used to control for different inclusion criteria. In 2012, 1.04% (95% CI 1.03–1.05) of insured patients had a wound diagnosis, including 0.70% with leg ulcers and 0.27% with diabetic ulcers. Wound treatment was received by 0.43% (0.43–0.44) of patients. Prevalence and incidence increased over 3 years. Extrapolated to the German population, there were 786,407 prevalent and 196,602 incident chronic wounds, including 326,334/172,026 patients who underwent wound‐relevant treatment in 2012. There is an annually increasing frequency of chronic wounds in Germany. Chronic wound epidemiology is sensitive to wound treatment as a filter criterion.

Quality of Care in Chronic Leg Ulcer in the Community: Introduction of Quality Indicators and a Scoring System

Background: Treatment of chronic wounds is complex, particularly as a standard for the assessment and evaluation of quality of care is missing. Objectives: To develop indicators for quality of care in chronic wounds in general, and to evaluate the quality of care in leg ulcers in Hamburg, Germany, in particular. Methods: Twenty indicators were derived from a national Delphi expert consensus to compute a single index of quality of care. This index was applied in a cross-sectional study involving a large spectrum of care providers and leg ulcer patients in the community. Trained wound experts interviewed and examined the patients, who had to complete standardized questionnaires. Results: On average, 64% of the quality criteria were met in the consecutive sample of 502 patients with chronic leg ulcers of any origin; 75% of the patients were satisfied with their wound care. Predictors of quality of care are presented. Conclusions: This instrument is feasible, valid and ready for comparisons of patient groups, regions and care systems, and for optimization processes in wound care.

Efficacy, Tolerability and Patient Benefit of Ultrasound-Assisted Wound Treatment versus Surgical Debridement: A Randomized Clinical Study

Background: Low-frequency ultrasound has been shown to be an alternative to surgical wound debridement (WD) to stimulate wound healing; however, few data are available. Objective: To compare the efficacy, tolerability and benefit of both wound treatment methods. Methods: A monocentric prospective randomized-controlled clinical study assessing patient-reported outcomes and clinical efficacy of ultrasound-assisted wound treatment (UAW) compared to WD. Results: In total, 67 patients were treated. Efficacy and tolerability were found to be good for both treatments, with 88% of UAW and 85.2% of WD patients experiencing more-than-minimal patient benefit. Quality of life improved significantly. Wound status improved and pain decreased in both groups. Conclusion: Compared to the gold standard (i.e. WD), UAW displays the same high efficacy, comparable patient benefit and improved quality of life. Both procedures are equally suitable for highly beneficial guideline-based treatment of chronic wounds.