A scoping review on Chronic Venous Disease and the development of a Venous Leg Ulcer: The role of obesity and mobility.

OBJECTIVE: The risk factors obesity and reduced mobility are not well known in the development of a Venous Leg Ulcer (VLU). The aim of this scoping review is to explore the mechanisms by which obesity and reduced mobility contribute the development of a VLU in patients with Chronic Venous Disease (CVD). METHODS: For this scoping review a search was performed in May 2019 in the Cochrane Library and Pubmed to identify studies on the working mechanisms of obesity and mobility in developing a VLU. Hand searches were performed to find additional studies explaining the working mechanisms (indirectly related to the VLU). Two reviewers independently reviewed the abstracts and full-text articles. RESULTS: Twenty-eight studies met our eligibility criteria. Disturbed range of ankle motion and gait can lead to a reduced Calf Muscle Pump (CMP) function which leading to a venous outflow disorder. Increased abdominal pressure due to obesity can lead to a venous outflow obstruction and increased adipose tissue mass results in an increase in adipokine secretion. The venous outflow disorder, outflow obstruction and increased adipokine secretion can all lead to chronic systemic inflammation, increased endothelial permeability and hence microcirculatory dysfunction. This alone can result in a VLU. CONCLUSION: Obesity and reduced mobility can lead to a reduction of the CMP function, an increase in abdominal pressure and an increase in adipose tissue mass. This can simultaneously lead to haemodynamic changes in the macro- and microcirculation of the lower extremities and eventually in a VLU. In patients with obesity and reduced mobility the microcirculation alone can lead to skin changes and eventually a VLU. Therefore, early recognition of CVD symptoms in patients with obesity and reduced mobility is crucial to diagnose and treat CVD to prevent a VLU.

A qualitative study on the patient's narrative in the progression of chronic venous disease into a first venous leg ulcer: a series of events.

BACKGROUND: A venous leg ulcer (VLU) has a significant negative impact on quality of life. Prevention of a VLU is not yet imbedded in clinical practice because risk factors for developing a first VLU are not well known. OBJECTIVES: To explore further the progression of chronic venous disease (CVD) into a first VLU from the patient's perspective. METHODS: A qualitative study using semistructured interviews was conducted among male and female patients with a VLU. Patients from primary and secondary care, under and over 50 years of age, and with first and recurrent VLUs were included. The interviews were transcribed and analysed using a narrative approach to a thematic analysis. Transcripts were organized in chronological order and an iterative process was used to code the transcripts. RESULTS: Four key themes and the connections made between them emerged from the 11 narratives on the progression of CVD towards a first VLU: 'comorbidity', 'mobility', 'work and lifestyle' and 'acknowledgment of CVD'. Comorbidity was linked to reduced mobility and late acknowledgment of CVD. Comorbidity also affected work and lifestyle and vice versa. Work and lifestyle affected mobility and was linked to the acknowledgment of CVD. CONCLUSIONS: A reduction in mobility as a result of comorbidity and work and lifestyle occurred before the VLU developed. Patients did not recognize symptoms of CVD and did not acknowledge the chronicity of CVD. Healthcare professionals should be aware of reductions in mobility and the knowledge deficit in patients with CVD. What's already known about this topic? Not all patients with chronic venous disease (CVD) develop a venous leg ulcer (VLU). A patient's quality of life decreases significantly when a VLU develops. Risk factors for the development of a first VLU in patients with CVD are not well known, unlike risk factors for other chronic wounds like diabetic foot ulcer and pressure ulcers. What does this study add? The patient's narrative towards the development of a first VLU, a series of events. Insight into the events (comorbidity, mobility, work and lifestyle) that patients themselves link to the development of a VLU. Insight into the patients' acknowledgment of CVD in the progression of CVD towards a first VLU. What are the clinical implications of this work? More awareness is needed of CVD symptoms among patients and healthcare providers, as well as more awareness for prevention of a VLU in clinical practice. New insights (for further studies) are needed into the concept of mobility and the development of a VLU. Improved patient education and follow-up are needed for patients with CVD.

A systematic review on risk factors in developing a first-time Venous Leg Ulcer.

Venous Leg Ulcers (VLU) occur in about 1% of the Western population. A VLU takes 3-12 months to heal, it recurs often, and it has a negative impact on the quality of life. The risk factors for the development of a first VLU are not well-understood and prevention of a first VLU therefore remains underappreciated. The aim of this study was to identify risk factors for developing a first VLU in adults (aged > 18 years) by searching the literature. We searched the Cochrane Library, Pubmed, Cinalh and Narcisto identify studies that investigated risk factors in developing a VLU. The last search was performed in January 2018. Two reviewers independently reviewed the abstracts and full-text articles, and assessed the methodological quality of the included studies. Results of studies using duplex scanning, and comparing participants with and without VLUs were included in the qualitative analysis. Where possible a quantitative meta-analysis was conducted. We found five studies that investigated the relation of several risk factors with VLU development. The methodological differences of the studies made it impossible to perform a quantitative analysis. The risk factors higher age (four studies), higher body mass index (four studies), low physical activity (four studies), arterial hypertension (four studies), deep vein reflux (three studies), deep venous thrombosis (three studies) and family history of VLU (three studies) were significantly associated with a VLU in the majority of the studies. To what extent they influence the development of a VLU remains unclear because of the limited number of studies that investigated the association of these risk factors with VLU development, and the heterogeneity of these studies. Further studies are needed to confirm the association of these risk factors with the development of a VLU and to explore overweight and low physical activity in more detail.

The efficacy and safety of non-pharmacological therapies for the treatment of acne vulgaris: A systematic review and best-evidence synthesis.

BACKGROUND: Acne vulgaris is a multifaceted skin disorder, affecting more than 85% of young individuals worldwide. Pharmacological therapy is not always desirable because of the development of antibiotic resistance or the potential risk of adverse effects. Non-pharmacological therapies can be viable alternatives for conventional therapies. However, sufficient evidence-based support in the efficacy and safety of non-pharmacological therapies is lacking. OBJECTIVE: To assess the efficacy and safety of several non-pharmacological therapies in the treatment of acne vulgaris. METHODS: A systematic literature review, including a best-evidence synthesis, was performed to identify literature. Three electronic databases were accessed and searched for studies published between January 2000 and May 2017. RESULTS: Thirty-three eligible studies were included in our systematic review. Three main types of non-pharmacological therapies were identified laser- and light-based therapies, chemical peels and fractional microneedling radiofrequency. The majority of the included studies demonstrated a significant reduction in acne lesions. However, only seven studies had a high methodologic quality. Based on these seven trials, a best-evidence synthesis was conducted. Strong evidence was found for glycolic acid (10-40%). Moderate evidence was found for amino fruit acid (20-60%), intense pulsed light (400-700 and 870-1200 nm) and the diode laser (1450 nm). Initially, conflicting evidence was found for pulsed dye laser (585-595 nm). The most frequently reported side-effects for non-pharmacological therapies included erythema, tolerable pain, purpura, oedema and a few cases of hyperpigmentation, which were in most cases mild and transient. CONCLUSION: Circumstantial evidence was found for non-pharmacological therapies in the treatment of acne vulgaris. However, the lack of high methodological quality among included studies prevented us to draw clear conclusions, regarding a stepwise approach. Nevertheless, our systematic review including a best-evidence synthesis did create order and structure in resulting outcomes in which a first step towards future research is generated.

Prevalence and spread of multidrug resistant Escherichia coli isolates among nursing home residents in the southern part of The Netherlands.

OBJECTIVES: Empiric antibiotic treatment should be based on recent surveillance data. Therefore, we conducted a surveillance of (multidrug) resistance of Escherichia coli and antibiotic use among Dutch nursing home (NH) residents. Pulsed-field gel electrophoresis and multilocus sequence typing were used to describe the spread of multidrug-resistant strains. DESIGN: Observational study. SETTING: Five NHs in the southern part of The Netherlands. PARTICIPANTS: A total of 337 NH residents from both somatic and psychogeriatric wards. MEASUREMENTS: The prevalence and spread of antibiotic resistance and multidrug resistant E. coli isolates collected from urine samples and antibiotic use among the NH residents were investigated. RESULTS: A total of 208 E. coli isolates were collected from 308 urine samples. Resistance to amoxicillin-clavulanic acid was 23% and resistance to ciprofloxacin was 16%. Resistance to trimethoprim-sulfamethoxazole was 19%, whereas nitrofurantoin resistance was less than 1%. Multidrug resistance was observed in 28 of the 208 isolates (13%). Several isolates showed a similar pulsed-field gel electrophoresis pulsotype and multilocus sequence typing type. Sequence type (ST) 131 was the most prevalent (48%) and was demonstrated in all NHs and with four different pulsotypes. Consumption of antibiotics for systemic use was 64.4 defined daily dose (DDD)/1000 residents/day. Amoxicillin-clavulanic acid was most frequently prescribed (20.92 DDD/1000 residents/day), followed by the quinolones (14.8 DDD/1000 residents/day). CONCLUSION: We observed a high prevalence of antibiotic resistance and antibiotic use. In particular, the use of and resistance to fluoroquinolones is concerning. Because of the high prevalence of resistance, many agents are no longer suitable for empiric treatment. E. coli ST131, which has also been demonstrated in this study, poses a potential risk to this vulnerable population. We have clearly demonstrated that the resistance among NH residents is different from elderly living at home and hospitalized patients, and with the emergence of resistant strains, such as ST131, NHs are a potential reservoir for multidrug resistant bacteria.