Long-term persistence of withdrawal of temazepam, zopiclone, and zolpidem in older adults: a 3-year follow-up study.

BACKGROUND: Studies on persistence of benzodiazepine agonist (BZDA) withdrawal in older outpatients are few, and few studies on long-term persistence over years have yet been published. To describe the persistence of temazepam, zolpidem, and zopiclone (BZDA) withdrawal among older outpatients at 3 years from the beginning of withdrawal, as well as any changes in use of other medications. METHODS: 92 outpatients (≥55 years) with primary insomnia, long-term BZDA use as hypnotics (mean duration of BZDA use 9.9 ± 6.2 years), and willingness to withdraw from BZDAs each received either melatonin or a placebo nightly for one month. During this period, BZDAs were meant to be gradually withdrawn. Sleep hygiene counselling and psychosocial support were provided. Three years later, use of BZDAs and other medications was determined by interview and confirmed from medical records. RESULTS: Of the original 92 outpatients, 83 (90%) participated in the 3-year survey (mean follow-up 3.3 ± 0.2 years). The number of BZDA-free participants decreased from 34 (37%) at 6 months to 26 (28%; intention-to-treat) at 3 years, that of irregular BZDA users decreased from 44 (48%) at 6 months to 27 (29%) at 3 years, while that of regular users increased from 11 (12%) at 6 months to 30 (33%) at 3 years (P = 0.001). Those who were regular BZDA users at 3 years had at baseline (before withdrawal) higher BMI (P = 0.001) than did other participants. At 3 years, the total number of medications remained unchanged for non-users (P = 0.432), but increased for the irregular (P = 0.011) and regular users (P = 0.026) compared to baseline. At 3 years, compared to baseline, use of antidepressants, dopamine agonists, melatonin, and NSAIDs/paracetamol was significantly more common in the whole cohort, but their use did not differ between the BZDA-user subgroups. Randomization to melatonin or placebo during BZDA withdrawal was unrelated to BZDA-withdrawal result. CONCLUSIONS: At 3 years after withdrawal, the number of BZDA-free participants had decreased, but still one-third of the subjects remained BZDA-free, and one-third had reduced their use. Successful BZDA withdrawal did not lead to any increase in total number of medications; use of symptomatic medications in the whole cohort, however, did increase.

Physical Activity Improves Borderline Ankle-Brachial Index Values in a Cardiovascular Risk Population.

BACKGROUND: Peripheral arterial disease (PAD) is an underdiagnosed and undertreated disease because it remains asymptomatic for so long. The ankle-brachial index (ABI) is a valid method for detecting PAD in lower extremities. ABI ≤0.90 indicates incident PAD. Recent studies have found that subjects with borderline ABI values (0.91-1.00) have increased mortality rates. The objective of our 7-year follow-up study was to investigate the progression of PAD in borderline ABI subjects, who underwent a multifactorial cardiovascular intervention. METHODS: A total of 193 subjects with borderline ABI were examined in 2005-2006. None of them had previously diagnosed diabetes, cardiovascular or renal disease or intermittent claudication. They were given conventional treatment for multiple risk factors of cardiovascular diseases (hypertension, hypercholesterolemia, elevated blood glucose, smoking, and overweight). Sixty-four percent of these subjects (n = 123) attended a follow-up visit in 2012. RESULTS: Of the 123 subjects with borderline ABI (mean age 59.0 ± 6.5 years, 62% female) at baseline, 18 (15%, 95% confidence intervals [CI]: 9%-22%) developed incident PAD during the follow-up. The mean ABI was 0.97 ± 0.03 at baseline and 1.01 ± 0.12 at 7-year follow-up visit. The change in mean ABI was +0.04 (95% CI: 0.03-0.07), P < 0.001. ABI improved significantly in 25 (20%) subjects. In multivariate ordered logistic regression analyses high and even moderate leisure-time physical activity (LTPA; odds ratio 6.15; 95% CI: 1.99-19.1) predicted a rise in ABI in comparison to low LTPA. CONCLUSIONS: Physical activity seems to improve significantly ABI values among men and women with borderline ABI (0.91-1.00).

Short stature in men is associated with subclinical peripheral arterial disease.

BACKGROUND: Peripheral arterial disease (PAD) affects approximately 202 million individuals around the world and is associated with a high risk of myocardial infarction, stroke and death. Although there is a clear inverse association between adult height and the risk of cardiovascular disease, little is known about the relationship between height and PAD. The aim of our study was to assess the relationship between subclinical PAD and height. PATIENTS AND METHODS: In a cross-sectional cardiovascular risk factor study in southwestern Finland, ankle brachial index (ABI) and other risk factors were measured from a total of 972 cardiovascular risk subjects derived from the general population. None of them had previously diagnosed diabetes, cardiovascular or renal disease or intermittent claudication. Subjects with an ABI ≤ 0.90 were categorized as having subclinical PAD. RESULTS: The average age of the study subjects was 58.1 ± 6.7 years for men and 58.8 ± 6.9 years for women. The prevalence of subclinical PAD was 5 % (95 % CI 3 % - 7 %) (23/455) among men and 5 % (95 % CI 3 %-7 %) (26/517) among women. The mean ABI among men and women was 1.09 ± 0.12 and 1.08 ± 0.12, respectively. In men, there was an inverse association between height and the prevalence of subclinical PAD (p < 0.001) along with a positive association between height and ABI values (p < 0.001). In a multivariate model, height, age and current smoking status remained independent factors that were associated with subclinical PAD in men, whereas in women, only pulse pressure was associated with subclinical PAD. CONCLUSIONS: Short stature in men is associated with subclinical PAD and lower ABI values.

High-intensity physical activity, stable relationship, and high education level associate with decreasing risk of erectile dysfunction in 1,000 apparently healthy cardiovascular risk subjects.

INTRODUCTION: Erectile dysfunction (ED) is especially common in men with cardiovascular diseases (CVDs). However, the data are scarce concerning populations without manifested CVD. AIM: The aim of this study was to describe factors associated with ED, especially those associated with decreasing risk of ED, in men with cardiovascular risk factors but without CVD, diabetes, or chronic renal disease. METHODS: In 2004 to 2007, a cross-sectional population-based sample of men 45 to 70 years old in two rural towns in Finland was collected. Men with previously diagnosed CVD, diabetes, or kidney disease were not invited to the study. In total 1,000 eligible men with cardiovascular risk factors, i.e., central obesity, high scores in the Finnish Diabetes Risk Score, high blood pressure, antihypertensive medication, or family history of coronary heart disease, myocardial infarction, or stroke, were included in the analysis. Questionnaires, clinical measurements, and laboratory tests were obtained. The prevalence of ED was studied comparing the means, and risk factors were studied using multivariate logistic regression analysis. MAIN OUTCOME MEASURES: The rate of ED was defined by the International Index of Erectile Function short form (IIEF-5) and by two questions (2Q) about the ability to achieve and to maintain an erection. RESULTS: The prevalence of ED was 57% or 68% using IIEF-5 or 2Q, respectively. Age (odds ratio [OR]: up to 9.16; 95% confidence interval [CI], 5.00-16.79; P < 0.001), smoking (OR: 1.41; 95% CI, 1.04-1.91; P = 0.028), depressive symptoms (OR: 4.04 for moderate and severe; 95% CI,1.22-13.45; P = 0.001), high-intensity physical activity (OR: 0.50; 95% CI, 0.29-0.86; P = 0.045), high education (OR: 0.52; 95% CI, 0.33-0.83; P = 0.013), and stable relationship (OR: 0.43; 95% CI, 0.21-0.88; P = 0.046) were associated with ED. CONCLUSIONS: In apparently healthy men with cardiovascular risk factors, decreasing risk of ED is associated with high-intensity physical activity, stable relationship, and high education level.

Human skin transcriptome during superficial cutaneous wound healing.

Healing of the epidermis is a crucial process for maintaining the skin's defense integrity and its resistance to environmental threats. Compromised wound healing renders the individual readily vulnerable to infections and loss of body homeostasis. To clarify the human response of reepithelialization, we biopsied split-thickness skin graft donor site wounds immediately before and after harvesting, as well as during the healing process 3 and 7 days thereafter. In all, 25 biopsies from eight patients qualified for the study. All samples were analyzed by genome-wide microarrays. Here, we identified the genes associated with normal skin reepithelialization over time and organized them by similarities according to their induction or suppression patterns during wound healing. Our results provide the first elaborate insight into the transcriptome during normal human epidermal wound healing. The data not only reveal novel genes associated with epidermal wound healing but also provide a fundamental basis for the translational interpretation of data acquired from experimental models.

Assessment of cardiovascular risk in primary health care.

OBJECTIVE: This study aimed at investigating whether cardiovascular risk factors and their impact on total risk estimation differ between men and women. DESIGN: Cross-sectional cohort study. SUBJECTS: Finnish cardiovascular risk subjects (n = 904) without established cardiovascular disease, renal disease, or known diabetes. MAIN OUTCOME MEASURES: Ankle-brachial index (ABI), estimated glomerular filtration rate (eGFR), oral glucose tolerance test, and total cardiovascular risk using SCORE risk charts. RESULTS: According to the SCORE risk charts, 27.0% (95% CI 23.1-31.2) of the women and 63.1% (95% CI 58.3-67.7) of the men (p < 0.001) were classified as high-risk subjects. Of the women classified as low-risk subjects according to SCORE, 25% had either subclinical peripheral arterial disease or renal insufficiency. CONCLUSIONS: The SCORE system does not take into account cardiovascular risk factors typical in women, and thus underestimates their total cardiovascular risk. Measurement of ABI and eGFR in primary care might improve cardiovascular risk assessment. especially in women.

Mortality and cause of death in hip fracture patients aged 65 or older: a population-based study.

BACKGROUND: The high mortality of hip fracture patients is well documented, but sex- and cause-specific mortality after hip fracture has not been extensively studied. The purpose of the present study was to evaluate mortality and cause of death in patients after hip fracture surgery and to compare their mortality and cause of death to those in the general population. METHODS: Records of 428 consecutive hip fracture patients were collected on a population-basis and data on the general population comprising all Finns 65 years of age or older were collected on a cohort-basis. Cause of death was classified as follows: malignant neoplasms, dementia, circulatory disease, respiratory disease, digestive system disease, and other. RESULTS: Mean follow-up was 3.7 years (range 0-9 years). Overall 1-year postoperative mortality was 27.3% and mortality after hip fracture at the end of the follow-up was 79.0%. During the follow-up, age-adjusted mortality after hip fracture surgery was higher in men than in women with hazard ratio (HR) 1.55 and 95% confidence interval (95% CI) 1.21-2.00. Among hip surgery patients, the most common causes of death were circulatory diseases, followed by dementia and Alzheimer's disease. After hip fracture, men were more likely than women to die from respiratory disease, malignant neoplasm, and circulatory disease. During the follow-up, all-cause age- and sex-standardized mortality after hip fracture was 3-fold higher than that of the general population and included every cause-of-death category. CONCLUSION: During the study period, the risk of mortality in hip fracture patients was 3-fold higher than that in the general population and included every major cause of death.

Surrogates of Large Artery versus Small Artery Stiffness and Ankle-Brachial Index.

Peripheral artery tonometry (PAT) is a novel method for assessing arterial stiffness of small digital arteries. Pulse pressure can be regarded as a surrogate of large artery stiffness. When ankle-brachial index (ABI) is calculated using the higher of the two ankle systolic pressures as denominator (ABI-higher), leg perfusion can be reliably estimated. However, using the lower of the ankle pressures to calculate ABI (ABI-lower) identifies more patients with isolated peripheral arterial disease (PAD) in ankle arteries. We aimed to compare the ability of PAT, pulse pressure, and different calculations of ABI to detect atherosclerotic disease in lower extremities. We examined PAT, pulse pressure, and ABI in 66 cardiovascular risk subjects in whom borderline PAD (ABI 0.91 to 1.00) was diagnosed 4 years earlier. Using ABI-lower to diagnose PAD yielded 2-fold higher prevalence of PAD than using ABI-higher. Endothelial dysfunction was diagnosed in 15/66 subjects (23%). In a bivariate correlation analysis, pulse pressure was negatively correlated with ABI-higher (r = -0.347, p = 0.004) and with ABI-lower (r = -0.424, p < 0.001). PAT hyperemic response was not significantly correlated with either ABI-higher (r = -0.148, p = 0.24) or with ABI-lower (r = -0.208, p = 0.095). Measurement of ABI using the lower of the two ankle pressures is an efficient method to identify patients with clinical or subclinical atherosclerosis and worth performing on subjects with pulse pressure above 65 mm Hg. The usefulness of PAT measurement in detecting PAD is vague.

One-time counselling decreases the use of benzodiazepines and related drugs among community-dwelling older persons.

BACKGROUND: evidence about possibilities to help older persons to withdraw the long-term use of benzodiazepines (BZD) is scarce. Effective and practicable methods are needed. OBJECTIVE: the study aimed to assess the persistence of one-time counselling by a geriatrician to reduce psychotropic drugs, especially BZD and related drugs (RD). DESIGN: a prospective randomised controlled trial with a 12-month follow-up was conducted. SUBJECTS: five hundred ninety-one community-dwelling people aged 65 or older participated in the study. METHODS: instructions to withdraw, reduce or change psychotropic drugs were given to the intervention group. A 1-h lecture about these drugs and their adverse effects was given later on. No changes in the drug therapy were suggested for the controls. RESULTS: the number of regular users of BZD and RD decreased by 35% (12/34) (odds ratios (OR) = 0.61, 95% confidence interval (95% CI) 0.44-0.86) in the intervention group while it increased by 4% (2/46) (OR = 1.05, 95% CI 0.81-1.36) in the controls (P = 0.012). No significant changes in the users of other types of psychotropics were found. CONCLUSION: one-time counselling of psychotropics and other fall-risk-increasing drugs by a geriatrician followed with a 1-h lecture about adverse effects of these drugs had positive effects in decreasing the number of regular users of BZD and RD, and these effects persisted for the total 12-month intervention period.

Decreased forced expiratory volume in first second is associated with erectile dysfunction in apparently healthy men. A preliminary study.

Although it has been evaluated that even 76% of men with chronic obstructive pulmonary disease suffer from erectile dysfunction, the association has been poorly characterised. The aim of the study was to describe the association between forced expiratory volume in first second and erectile dysfunction in apparently healthy men. All together 331 men aged 45-70 years old were randomly drawn from a cross-sectional population-based study conducted in 2005 in Finland. Decreased forced expiratory volume was defined by performing mini-spirometry and erectile dysfunction by International Index of Erectile Function short form questionnaire. After adjustment for age and depressive symptoms predicted forced expiratory volume (FEV1 < 65%) was associated with 2.66 (95% CI, 1.18-5.99) increased risk of moderate to severe erectile dysfunction (International Index of Erectile Function short form score < 17). Therefore, the authors highlight the importance of erectile and sexual health evaluation and treatment, if necessary, in men with decreased lung function.

Waist circumference home measurement--a device to find out patients in cardiovascular risk.

BACKGROUND: New strategies are needed to prevent the global epidemic of diabetes and subsequent rise in cardiovascular diseases. We describe a community-based, two-stage screening strategy using home waist circumference measurement and a risk factor questionnaire as a primary screening tool. METHODS: We mailed a tape for measurement of waist and a risk factor questionnaire to every inhabitant aged 45-70 years living in the rural town of Harjavalta in Finland. Thereafter we performed an oral glucose tolerance test, anthropometric variables and blood pressure of subjects having at least one risk factor for type 2 diabetes or cardiovascular disease. People with previously known diabetes or vascular disease were excluded. RESULTS: Seventy-three percent (2085/2856) of the invited inhabitants participated, and 84% of the respondents had at least one pre-specified risk factor. Waist circumference >or=80 cm in women and >or=94 cm in men (n = 1168), positive metabolic syndrome criteria of the International Diabetes Federation (n = 681) or the Finnish Diabetes Risk Score questionnaire >or=12 points (n = 697) identified 95, 92 and 63% of the new cases of type 2 diabetes and 84, 75 or 62% of pre-diabetes, respectively. CONCLUSION: The International Diabetes Federation criteria for elevated waist circumference are very sensitive but lack specificity in diagnosing glucose disorders. The criteria for metabolic syndrome and the Finnish Diabetes Risk Score questionnaire are more efficient tools for the selection of patients for further risk stratification in general practise.

Effects of risk-based multifactorial fall prevention on health-related quality of life among the community-dwelling aged: a randomized controlled trial.

BACKGROUND: This study aimed to assess the effects of a risk-based, multifactorial fall prevention programme on health-related quality of life among the community-dwelling aged who had fallen at least once during the previous 12 months. METHODS: The study is a part of a single-centre, risk-based, multifactorial randomised controlled trial. The intervention lasted for 12 months and consisted of a geriatric assessment, guidance and treatment, individual instruction in fall prevention, group exercise, lectures on themes related to falling, psychosocial group activities and home exercise. Of the total study population (n = 591, 97% of eligible subjects), 513(251 in the intervention group and 262 in the control group) participated in this study. The effect of the intervention on quality of life was measured using the 15D health-related quality of life instrument consisting of 15 dimensions. The data were analysed using the chi-square test or Fisher's exact test, the Mann-Whitney U-test and logistic regression. RESULTS: In men, the results showed significant differences in the changes between the intervention and control groups in depression (p = 0.017) and distress (p = 0.029) and marginally significant differences in usual activities (p = 0.058) and sexual activity (p = 0.051). In women, significant differences in the changes between the groups were found in usual activities (p = 0.005) and discomfort/symptoms (p = 0.047). For the subjects aged 65 to 74 years, significant differences in the changes between the groups were seen in distress (p = 0.037) among men and in usual activities (p = 0.011) among women. All improvements were in favour of the intervention group. CONCLUSION: Fall prevention produced positive effects on some dimensions of health-related quality of life in the community-dwelling aged. Men benefited more than women.

Single-center experience with foam sclerotherapy without ultrasound guidance for treatment of varicose veins.

BACKGROUND: Varicose veins are a common disorder and many treatment methods are available. OBJECTIVE: The aim of this study was to evaluate the short-term efficacy of foam sclerotherapy and the safety of performing the treatment in an outpatient clinic without ultrasound guidance. METHODS This was a prospective, nonrandomized study with foam sclerotherapy. All the patients were assessed before and after the procedure with a CEAP (Clinical, Etiology, Anatomy, Pathology) class and clinical score. At the same visit, duplex scanning was performed to evaluate the anatomic distribution of the varicose disease. The mean age of the patients was 49.2 years (SD,+/-10.6 years; median, 50.0 years). Altogether 41% of the legs had undergone a previous operation and 24% were recurrences. The follow-up time was 3 months. RESULTS: Twenty-five patients with 27 legs were treated successfully using foam sclerotherapy without ultrasound guidance. Twenty-one cases (78%) involved the great saphenous vein and 6 cases (22%) involved the small saphenous vein. The mean bandage time was 7.7 days (SD,+/-2.50 days; median, 8.50 days). The CEAP score decreased 73% after the procedure from 2.61 (SD,+/-0.80; median, 2.0) to 0.71 (SD,+/-0.95; median, 0; p<.001). and the mean clinical score decreased 45% from 4.45 (SD,+/-1.96; median, 4.0) to 2.46 (SD,+/-1.50; median, 2.0; p<.001), respectively. Three months after the treatment, duplex scanning showed saphenofemoral reflux in 63% of the legs and saphenopopliteal reflux in 40% of the legs. The most common complication was postoperative thrombophlebitis (66%). Other minor complications included pain (38%) and hematoma (4%). There were no major complications. Subjectively, 71% of the patients assessed the procedure as good or excellent and 29% as acceptable or poor. CONCLUSION: Foam sclerotherapy is also an effective and safe procedure when performed without duplex guidance. Thrombophlebitis is frequent when using a high concentration of polidocanol and a short bandage time. The high frequency of saphenofemoral and saphenopopliteal junction reflux after the procedure can have a negative effect on the long-term results.

Experiences of using the EndoAssist-robot in surgery.

EndoAssist is a robotic camera-holding device controlled by the operator's head movements. Operations on forty-nine patients undergoing laparoscopic surgery were made using the robotic assistant. The aim of our project was to find out how using an EndoAssist-robot influences the operating times in contrast to using human assistant. A further aim was to collect the surgeons' experiences of using the robot. In this paper we describe the results of our project.

The LifeShirt system for wireless patient monitoring in the operating room.

We examined the functionality and reliability of a wearable physiological monitoring system (LifeShirt) during normal daily activities and in a hospital operating room (OR) environment. The garment collects physiological data such as oxygen saturation, and stores them in a recorder from which it can be read afterwards. Ten normal subjects wore the shirt continuously for 8 h per day. Feedback from the testers was quite positive, although the collected data varied in quality. Ten hospital patients also wore the shirt during endoscopy. The data collected during the hospital stay were qualitatively adequate. Measuring respiratory function caused the biggest problems. The study showed that intelligent garment technology could be used in an OR environment for patient monitoring, albeit not in realtime. It may also be useful in home follow-up.

Erectile dysfunction cannot be used in primary screening of pre-diabetes.

We hypothesized that erectile dysfunction is associated with impaired fasting glucose and impaired glucose tolerance and could be used in primary screening of pre-diabetes. Although erectile dysfunction is known to be closely associated with diabetes, we demonstrate that it is not associated with pre-diabetes in 926 apparently healthy men.

Vitamin D status and physical function in older Finnish people: A one-year follow-up study.

OBJECTIVE: The aim was to describe vitamin D status and its association with changes in PF during 12 months in Finnish community-dwelling elderly (≥65 years). METHODS AND RESULTS: Baseline serum 25-hydroxyvitamin D (25OHD) concentration was measured by enzymeimmunoassay, and participants (n=518) were divided according to 25OHD to three groups (I <50 nmol/l, II 50-74.9 nmol/l, and III ≥75 nmol/l). PF (maximal isometric extension strength of right and left knee, and time in five-repetition sit-to-stand test (5STS) and 10-m walking test) was measured at baseline and after 12 months. 25OHD deficiency (<50 nmol/l) was found in 20.5% of the participants. During a 12-month follow-up, differences in changes in knee extensor strength of right (p=0.044) and left (p=0.010) lower extremity and in 10-m walking test (p=.040) between the groups were significant. According to further pairwise comparisons these differences were between groups I and III (right knee, p=0.036; left knee, p=0.009; 10-m walk, p=0.044), with the exception of left knee extensor strength in which there were also significant difference between groups I and II (p=0.039). All significant differences in changes were in favour of group II or III. Significant differences in changes in knee extensor strengths maintained after adjustments for group (intervention/control), parathyroid hormone, and baseline level of knee extensor strength. CONCLUSIONS: Prospective analyses showed low 25OHD concentrations (<50 nmol/l) to be associated with deterioration in PF during 12 months compared with high 25OHD concentrations (≥75 nmol/l).

Teleconsultation as a replacement for referral to an outpatient clinic.

We conducted a randomized case control study of referrals from a primary care centre in Finland. All the consultations and referrals from seven general practitioners (GPs) dealt with by internists and surgeons at Satakunta Central Hospital in Pori and geriatricians at Satalinna Hospital in Harjavalta over five months were included. For patients in the control group, a conventional referral letter was sent to the hospital outpatient clinic. For patients in the intervention group, the GPs had to decide whether they wanted an electronic consultation with the hospital or wanted to refer the patient (i.e. to transfer responsibility for treatment). Communication with the hospital specialist was then via a secure Web-based system. Ninety-three patients consented to participate in the study. None refused, although there were 15 non-attenders. Satisfaction data were collected from questionnaires completed by the patients and doctors. All the patients treated by teleconsultation said that they wanted the same procedure in future and 63% of the control group said they would prefer a teleconsultation next time. The doctors quickly learned to exploit the telemedicine model successfully. The responsibility for treatment was maintained in the health centre in 52% of cases using teleconsultation, without any visit to hospital being required. The GPs and the hospital doctors agreed on the follow-up treatment. Telereferral increased the possibility of the GP maintaining responsibility for the treatment. The reduced number of hospital visits in the telemedicine model should produce significant cost savings.

Gene expression profiling of negative-pressure-treated skin graft donor site wounds.

Negative-pressure wound therapy (NPWT) is widely used to improve skin wound healing. Although NPWT has been studied as a treatment for wound closure and healing, the molecular mechanisms explaining its therapeutic effects remain unclear. To investigate the effect of NPWT on gene expression, and to discover the genes most dominantly responding to this treatment during skin wound healing, we applied negative pressure on split-thickness skin graft donor sites from the first postoperative day (POD) to the seventh POD. Biopsies were collected from 4 NPWT-treated and 2 control patients. Two biopsy samples were taken from each patient: one from intact skin before graft harvesting, and one on the seventh POD from the donor site wound. Genome-wide microarrays were performed on all samples. Gene expression changes on the seventh POD were compared between NPWT and control patients, and were analyzed for statistical significance. In addition, we analyzed wound exudates for volume, and for concentrations of leukocytes, erythrocytes, and haemoglobin. NPWT induced major changes in gene expression during healing. These changes ranged from 10-fold induction to 27-fold suppression. The genes most induced were associated with cell proliferation and inflammation, and the most down-regulated genes were linked to epidermal differentiation. Our results provide the first insight into the molecular mechanisms behind NPWT, and suggest that NPWT enhances specific inflammatory gene expression at the acute phase associated with epithelial migration and wound healing. However, its continued use may inhibit epithelial differentiation.

Ankle-brachial index and health-related quality of life.

BACKGROUND: Data from population studies using ankle-brachial index (ABI) measurement to screen patients for peripheral arterial disease (PAD) demonstrate that most patients with PAD have no symptoms or atypical symptoms besides classical intermittent claudication. We aimed at comparing health-related quality of life and ABI in a cohort of cardiovascular risk persons in a general population. METHODS: SF-36 questionnaire was completed and ABI measured from 915 individuals aged 45-70 years with hypertension, metabolic syndrome, pre-diabetes, newly detected diabetes, body mass index ≥ 30 kg/m(2), or a 10-year risk of cardiovascular disease death of 5% or more according to the Systematic Coronary Risk Evaluation (SCORE) system. None of the subjects had symptoms of intermittent claudication. RESULTS: The prevalence of PAD (defined as ABI ≤ 0.90) and borderline PAD (defined as ABI 0.91-1.00) were 5% (95% CI 4-7%) and 20% (95% CI 18-23%), respectively. Patients with PAD had significantly lower quality of life dimension scores for physical functioning, role-physical, general health, and vitality than subjects with normal ABI. Among those with borderline PAD, quality of life was reduced on the general health perception compared to subjects with normal ABI. CONCLUSION: Health-related quality of life of individuals with asymptomatic or atypical PAD or borderline PAD is worse than that of individuals with normal ABI. The level of ABI is independently related to physical functioning.