Characteristics of new patient referrals to specialised diabetic foot units across Europe and factors influencing delays.

OBJECTIVE: Foot ulcers are a common complication of diabetes and are associated with an increase in lower limb amputation and death. Early referral to a specialised unit is recommended. The aim of this study was to assess the characteristics of new-patient referrals to specialised diabetes foot care units across Europe and to determine the factors involved in delayed referral. METHOD: In this prospective observational study, consecutive patients with a new foot ulcer presenting to nine diabetic foot centres in five European countries (France, Germany, Italy, Spain and the UK) were included. RESULTS: Some 25% of the 332 patients included had presented with a foot ulcer >3 months before referral to the participating foot clinic. Compared with patients referred earlier, patients with a long time to referral (>3 months) were older (p=0.006) and had a less severe wound according to Infectious Diseases Society of America (IDSA) classification (p=0.003) and University of Texas classification (grade D=infection + peripheral artery disease, p=0.004). CONCLUSION: The proportion of patients with a diabetic foot ulcer (DFU) referred to a specialised unit >3 months after the beginning of the ulcer remained high throughout Europe. Patients with severe DFU were, however, referred more quickly by front line health professionals. Primary care professionals need to be made aware of the importance of early referral to a specialised unit in order to improve the management of foot disease in patients with diabetes. DECLARATION OF INTEREST: The authors have no conflicts of interest to declare.

Mortality in Patients with Diabetic Foot Ulcers: Causes, Risk Factors, and Their Association with Evolution and Severity of Ulcer.

Background: This study reviews the mortality of patients with diabetic foot ulcers (DFU) from the first consultation with a Multidisciplinary Diabetic Foot Team (MDFT) and analyzes the main cause of death, as well as the relevant clinical factors associated with survival. Methods: Data of 338 consecutive patients referred to the MDFT center for a new DFU during the 2008-2014 period were analyzed. Follow-up: until death or until 30 April 2020, for up to 12.2 years. Results: Clinical characteristics: median age was 71 years, 92.9% had type 2 diabetes, and about 50% had micro-macrovascular complications. Ulcer characteristics: Wagner grade 1-2 (82.3%), ischemic (49.2%), and infected ulcers (56.2%). During follow-up, 201 patients died (59.5%), 110 (54.7%) due to cardiovascular disease. Kaplan-Meier curves estimated a reduction in survival of 60% with a 95% confidence interval (95% CI), (54.7-65.3) at 5 years. Cox regression analysis adjusted to a multivariate model showed the following associations with mortality, with hazard ratios (HRs) (95% CI): age, 1.07 (1.05-1.08); HbA1c value < 7% (53 mmol/mol), 1.43 (1.02-2.0); active smoking, 1.59 (1.02-2.47); ischemic heart or cerebrovascular disease, 1.55 (1.15-2.11); chronic kidney disease, 1.86 (1.37-2.53); and ulcer severity (SINBAD system) 1.12 (1.02-1.26). Conclusion: Patients with a history of DFU have high mortality. Two less known predictors of mortality were identified: HbA1c value < 7% (53 mmol/mol) and ulcer severity.

Analysis of recurrent ulcerations at a multidisciplinary diabetic Foot unit after implementation of a comprehensive Foot care program. / Análisis de las reulceraciones en una unidad multidisciplinar de pie diabético tras la implementación de un programa de cuidado integrado del pie.

BACKGROUND AND OBJECTIVE: The aim of this study was to assess the risk factors associated to recurrent diabetic foot ulcers after implementing a new preventive comprehensive foot care (CFC) program carried out by a podiatrist and an endocrinologist at a multidisciplinary diabetic foot unit (MDFU) and its potential impact in decreasing recurrent ulcers. MATERIAL AND METHODS: A retrospective cohort study including consecutive patients who attended the MDFU for the first time from 2008 to 2014 complaining of a diabetic foot ulcer that finally healed. Patients were monitored until ulcer recurred or up to June 30, 2016. Maximum follow-up time was 8.1 years. Cumulative incidence of recurrent ulcers was analyzed during two periods: 2008-2010 (before CFC was implemented) and 2011-2014 (after implementation of CFC). RESULTS: A total of 280 subjects with a median age of 69.5 years (Q25:60,2-Q75:78) were included. Of these, 64.6% were males and 92.1% had type 2 diabetes mellitus. One hundred and twenty-six (45%) suffered recurrent ulcers. Median time to recurrent ulceration was 0.97 (Q25:0.44-Q75:1.74) years. Multivariate analysis showed sensory neuropathy (HR [95% CI] 1.58 [0.99-2.54], P=.050); minor amputation (HR [95% CI] 1.66 [0.12-2, 46], P=.011); and 2011-2014 period versus 2008-10 period (HR [95% CI] 0.60 [0.42-0.87], P=.007) to be factors independently associated to recurrent ulcers. CONCLUSIONS: Sensory neuropathy, minor amputation, and implementation of the CFC program were predictors of reulceration. Implementation of the CFC program was associated to a 40% reduction in reulceration. Prevention of recurrent ulcers is feasible and should be a priority in a MDFU.

Clinical characteristics and mortality in patients treated in a Multidisciplinary Diabetic Foot Unit. / Características clínicas y mortalidad de los pacientes atendidos en una Unidad Multidisciplinar de Pie Diabético.

BACKGROUND AND OBJECTIVE: This study reviews the clinical characteristics of patients with diabetic foot ulcer treated in a Multidisciplinary Diabetic Foot Unit (MDFU) and analyzes the mortality and factors associated with its survival. MATERIAL AND METHODS: Data from all patients who attended the MDFU for the first time for a diabetic foot ulcer during the 2008-2014 period were analized. The patients were followed until their death or until June 30, 2016, for up to 8 years. RESULTS: A total of 345 patients were included, with a median age (P25-P75) of 71 (61.5-80) years, and 321 (93%) had type 2 diabetes. They were characterized as patients with inadequate glycemic control, 48% had HbA1c ≥ 8% and high prevalence of chronic complications: 60.2% retinopathy, 43.8% nephropathy and 47.2% ischemic heart disease and/or cerebrovascular disease. A total of 126 (36.5%) patients died and 69 (54.8%) were due to cardiovascular disease. Survival measured by Kaplan-Meier declined over time to 69, 60 and 45% at 3, 5 and 7 years respectively. Cox's multivariate regression analysis showed the following variables associated with mortality, HR (95% CI): age 1.08 (1.05-1.11); previous amputation 2.24 (1.34-3.73); active smoking 2.10 (1.12-3.97); cerebrovascular disease 1.75 (1.05-2.92); renal dysfunction 1.65 (1.04-2.61) and ischemic heart disease 1.60 (1.01-2.51). CONCLUSIONS: Patients with diabetic foot ulcer are characterized by high morbidity and mortality, with cardiovascular disease being the most frequent cause of death. It is necessary to pay more attention to this risk group, tailoring objectives and treatments to their situation and life expectancy.

Diabetic foot units in Spain: knowing the facts using a questionnaire.

OBJECTIVE: To ascertain the number of diabetic foot units (DFUs) in Spain, the specialists working in them, and the population covered by them. MATERIAL AND METHODS: The Spanish Group on the Diabetic Foot (SGDF) prepared and agreed a questionnaire based on the recommendations of the 2011 International Consensus on the Diabetic Foot (ICDF). From October to December 2012, the questionnaire was sent to members of three scientific societies formed by professionals involved in the care of patients with diabetes mellitus. Population coverage of the responding centers and DFUs was estimated using the 2012 population census. RESULTS: Seventy five questionnaires were received, 64 of them from general hospitals, which accounted for 13% of the general hospitals of the National Health System. It was calculated that they provided coverage to 43% of the population. Thirty four centers answered that they had a DFU. Specialized diabetic foot care was only provided to 25% of the population. The number of different professionals working at diabetic foot units was 6.3±2.7. Classification of DFUs based on their complexity was as follows: 5 basic units (14.7%), 20 intermediate units (58.8%), and 9 excellence units (26.5%). CONCLUSIONS: The number of DFUs reported in this study in Spain is low, and allow for foot care of only one out of every four patients with diabetes. Spanish health system needs to improve diabetic foot care by creating new DFUs and improving the existing ones.