Laparoscopic temporary clipping of uterine artery during laparoscopic myomectomy.

PURPOSE: Our aim is to study the feasibility and effect of bilateral laparoscopic temporary occlusion of uterine arteries by special vascular clamps on blood loss during laparoscopic myomectomy. METHODS: Of 166 women with symptomatic uterine myomas necessitating surgical intervention who wished to retain their uteri, 80 underwent laparoscopic uterine artery clipping and myomectomy (experimental group) and 86 received laparoscopic myomectomy only (control group). Main outcome measures were operating time, number and weight of leiomyomas, blood loss, Doppler examination of the uterine arteries and complications of procedure. RESULTS: In the experimental group the median hemoglobin drop measured on day 3 postoperatively was 1.2 g/dl. In the control group the mean hemoglobin drop measured on day 3 postoperatively was 1.45 g/dl. The time needed to put the clips in place (the time from the opening of the retroperitoneum and the positioning of the clips) varied between 6 and 40 min. No patient required blood transfusion. There were no conspicuous complications. CONCLUSION: The use of the clips has proved to be statistically effective in reducing hemoglobin loss during laparoscopic myomectomy.

Effect of amlodipine on cardiovascular events in hypertensive haemodialysis patients.

BACKGROUND: Hypertensive haemodialysis patients may be at a high risk for cardiovascular events. This study was undertaken to ascertain whether the calcium channel blocker amlodipine reduces mortality and cardiovascular events in these high-risk patients. METHODS: We evaluated the effects of amlodipine on cardiovascular events in 251 hypertensive haemodialysis patients in an investigator-designed, prospective, randomized, double-blind, placebo-controlled, multicenter trial. One hundred and twenty-three patients were randomly assigned to amlodipine (10 mg once daily) and 128 to placebo. The primary endpoint was mortality from any cause. The secondary endpoint was a composite variable consisting of mortality from any cause or cardiovascular event. Analysis was by intention-to-treat. The trial was registered with ClinicalTrials.gov (number NCT00124969). RESULTS: The median age of patients was 61 years (25% percentile - 75% percentile, 47-69), and the median follow-up was 19 months (8-30). Fifteen (12%) of the 123 patients assigned to amlodipine and 22 (17%) of the 128 patients assigned to placebo had a primary endpoint [hazard ratio 0.65 (95% CI 0.34-1.23); P = 0.19]. Nineteen (15%) of the 123 haemodialysis patients assigned to amlodipine and 32 (25%) of the 128 haemodialysis patients assigned to placebo reached the secondary composite endpoint [hazard ratio 0.53 (95% CI 0.31-0.93); P = 0.03]. CONCLUSION: Amlodipine safely reduces systolic blood pressure and it may have a beneficial effect on cardiovascular outcomes in hypertensive haemodialysis patients.

'Knowing what Matters in diabetes: Healthier below 7': results of the campaign's first 10 years (part 2), participants without known diabetes history.

INTRODUCTION: Type 2 diabetes represents a major problem in many societies. Early detection and, even better, prevention could help to reduce the burden of the disease. Therefore, increased awareness of disorders of glucose metabolism is important. During the campaign 'Knowing what Matters in diabetes: Healthier below 7', in the last few years, more than 31 000 shopping mall visitors in Germany were voluntarily checked for their potential diabetes risk. METHODS: With a modified FINDRISK questionnaire, demographic, anthropometric and anamnestic data relevant for the estimation of the potential diabetes risk were collected. In addition, medical data such as plasma glucose, blood pressure (BP), BMI and waist circumference were obtained. Furthermore, lifestyle habits were documented. Hemoglobin (Hb)A1c was assessed randomly in a subgroup of individuals (n=4133). In total, data from 26 522 valid questionnaires were collected and evaluated over 10 years (2005-2014) from 45 single locations throughout Germany. Results from participants with manifest diabetes have already been published in this journal. Here, we report on the results from participants without a previous history of diabetes mellitus. RESULTS: Among the 26 522 participants with a completed questionnaire, 21 055 (79.4%) participants did not have a previous history of diabetes. Characteristic risk factors for diabetes were common in this group. With about 17% being obese and 40% being overweight, more than half of these individuals were thus beyond the normal BMI range. In addition, waist circumference exceeded common thresholds in 44% of the participants. As expected, many of them followed an unhealthy lifestyle as 35% reported no regular physical activity and 20% reported an unhealthy diet. The mean BP was 141/85 mmHg. More than half (51%) half of the patients in the nondiabetic group had a systolic BP above 140 mmHg, but only one-third (35%) reported concomitant treatment with antihypertensives. In the questionnaire, 14% of the participants had a FINDRISK sum score of 15 points and above, indicating a moderate or high risk of potentially developing type 2 diabetes within 10 years. Surprisingly, in the subgroup with HbA1c measurements (n=4133), 18.5% of the participants without a diagnosis or a history of diabetes were found to have an HbA1c value of at least 6.5% indicating manifest, previously undetected type 2 diabetes. CONCLUSION: The data collected in individuals without a known history of diabetes indicate a considerable prevalence of typical risk factors associated with diabetes. In addition, the data confirmed that screening of apparently healthy individuals consistently shows a significant proportion of individuals with previously undetected type 2 diabetes which, in the subgroup, was surprisingly high. As there is convincing evidence for the beneficial effect of relatively simple lifestyle interventions such as an increase of physical activity and avoidance of unfavourable diets, and weight reduction, campaigns such as 'Knowing what Matters in diabetes: Healthier below 7' can be an appropriate option to encourage primary prevention among the sedentary population as well as a suitable tool for early disease recognition. Therefore, campaigns such as this should be intensified and options for early preventive intervention should be offered to reduce long-term disease burden and healthcare costs.

Bond strength of disinfected metal and ceramic brackets: an in vitro study.

The aim of this in vitro investigation was to test whether disinfecting with Chlorhexamed fluid had an influence on the shear bond strength of metal and ceramic orthodontic brackets. Metal and ceramic brackets were fixed by the composite adhesives Transbond XT (light curing) and Concise (chemical curing) to 224 bovine permanent mandibular incisors. Bovine teeth were divided into eight groups of 28 each as group 1: metal bracket/Transbond XT, group 2: disinfected metal bracket/Transbond XT, group 3: metal bracket/Concise, group 4: disinfected metal bracket/Concise, group 5: ceramic bracket/Transbond XT, group 6: disinfected ceramic bracket/Transbond XT, group 7: ceramic bracket/Concise, and group 8: disinfected ceramic bracket/Concise. Adhesive bonding was done according to the manufacturers' instructions. As shown by group comparison (Kruskal-Wallis test, univariate analysis of variance, P < .001), the disinfection of metal brackets had no statistically relevant influence on shear bond strength (P = .454). However, disinfecting ceramic brackets with either adhesive led to a significant reduction in shear bond strength compared with the untreated ceramic bracket group (P < .001). The Fisher's exact test of the Adhesive Remnant Index (ARI) scores showed a significant difference within the metal group bonded with different adhesives (P = .0003). The ARI scores 1 and 2 were not reached by the ceramic bracket groups. The disinfection of the ceramic brackets is a suitable procedure for clinical use because the measured shear bond strength values were higher than 6-8 MPa required in orthodontics.

Are the correct herbal claims by Hildegard von Bingen only lucky strikes? A new statistical approach.

BACKGROUND: Ancient and medieval herbal books are often believed to describe the same claims still in use today. Medieval herbal books, however, provide long lists of claims for each herb, most of which are not approved today, while the herb's modern use is often missing. So the hypothesis arises that a medieval author could have randomly hit on 'correct' claims among his many 'wrong' ones. METHODS: We developed a statistical procedure based on a simple probability model. We applied our procedure to the herbal books of Hildegard von Bingen (1098- 1179) as an example for its usefulness. Claim attributions for a certain herb were classified as 'correct' if approximately the same as indicated in actual monographs. RESULTS: The number of 'correct' claim attributions was significantly higher than it could have been by pure chance, even though the vast majority of Hildegard von Bingen's claims were not 'correct'. The hypothesis that Hildegard would have achieved her 'correct' claims purely by chance can be clearly rejected. CONCLUSION: The finding that medical claims provided by a medieval author are significantly related to modern herbal use supports the importance of traditional medicinal systems as an empirical source. However, since many traditional claims are not in accordance with modern applications, they should be used carefully and analyzed in a systematic, statistics-based manner. Our statistical approach can be used for further systematic comparison of herbal claims of traditional sources as well as in the fields of ethnobotany and ethnopharmacology.