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Blood pressure measurement in obese individuals can be challenging because of the difficulty in properly cuffing large upper arms. Achieving a proper cuff fit can be problematic especially in people with a shorter arm length relative to circumference. This expert statement provides recommendations on blood pressure measurement in large arms for clinical use and research purposes. Tronco-conically shaped cuffs should be used in people with large arms, especially with arm circumferences greater than 42 cm as they better fit on the conical arm shape. Cuffs with frustum of the cone slant angle of 85° should satisfy most conditions. In individuals with short upper-arm that does not allow application of a properly sized cuff, wrist or forearm measurement might be used in clinical practice, but not for validation of automatic devices. Wide-range cuffs coupled to oscillometric devices provided with special software algorithms can also be used as alternatives to standard cuff measurement, provided they are independently validated per AAMI/ISO 81060-2 protocol. For validation studies, the intraarterial measurement is generally considered as the gold standard, yet for possible methodological pitfalls and ethical concerns, it is not recommended as the method of choice. Tronco-conical cuffs with inflatable bladder dimensions of 37-50 × 75-100% arm circumference should be used for reference auscultatory blood pressure measurement wherever the upper arm length allows a proper fit. There is a need for future studies that help identify the optimal shape of cuffs and bladders investigating the influence of sex, age, arm physical properties, and artery characteristics.OBJECTIVES The purpose of this study was to parameterize mid-trimester drop in blood pressure (BP) trajectory during pregnancy and to evaluate its utility for predicting preeclampsia. METHODS To develop parametric models for BP trajectory during pregnancy, we used data from 7923 Chinese pregnant women with 24 810 routine antenatal care visits. Then, we evaluated the utility of BP trajectory parameters for predicting clinician-diagnosed preeclampsia in a separate sample of 3524 pregnant women from a randomized controlled trial of prenatal vitamin supplementation conducted in the same area. We focused on parameters related to the mid-trimester BP drop, including the gestational age and BP value at the nadir (lowest point), change in BP, velocity, and area under curve during two periods (from 12 weeks of gestation to the nadir and from the nadir to 33 weeks of gestation). RESULTS All participants in our analysis had a mid-pregnancy drop in their SBP, DBP, and mean arterial pressure (MAP) trajectories. There were high correlations (|r| > 0.90) among trajectory parameters of the same BP measure. https://www.selleckchem.com/products/cbr-470-1.html The final prediction model included selective parameters of SBP, DBP, and MAP trajectories, prepregnancy BMI and gestational age at the first antenatal care visit. The area under the receiver-operating curve for predicting preeclampsia was 0.886 (95% confidence interval 0.846--0.926) in the training dataset and 0.802 (0.708--0.895) in the validation dataset. CONCLUSION Our novel BP trajectory parameters are informative and can predict preeclampsia at a clinically acceptable level.BACKGROUND Smokers may smoke cigarettes during ambulatory or home blood pressure (BP) monitoring but not clinic measurement. We investigated the prevalence of masked hypertension in relation to cigarette smoking in Chinese outpatients enrolled in a multicenter registry. METHODS Our study included 1646 men [494 (30.0%) current smokers]. We defined masked hypertension as a normal clinic SBP/DBP ( less then 140/90 mmHg) and elevated daytime (≥135/85 mmHg) or night-time (≥120/70 mmHg) ambulatory or morning or evening home SBP/DBP (≥135/85 mmHg). RESULTS In all men, multiple logistic regression showed that current cigarette smoking was significantly associated with daytime [prevalence 18.7%, odds ratio (OR) 1.69, 95% confidence interval 1.27-2.25, P = 0.0003] but not night-time (prevalence 27.1%, P = 0.32) ambulatory masked hypertension and associated with evening (prevalence 14.6%, OR 1.81, confidence interval 1.33-2.47, P = 0.0002) but not morning (prevalence 17.6%, P = 0.29) home masked hypertension. The associations were more pronounced for heavy smoking (≥20 cigarettes/day) relative to never smoking for both masked daytime ambulatory (OR 1.97, P = 0.001) and evening home hypertension (OR 2.40, P less then 0.0001) or in patients over 55 years of age (P for interaction in relation to daytime ambulatory masked hypertension = 0.005). In men with clinic normotension (n = 742), the associations were also significant (P less then 0.01), particularly in those with a normal to high-normal clinic BP (n = 619, P less then 0.04). CONCLUSION Cigarette smoking was associated with increased odds of masked daytime ambulatory and evening home hypertension, especially in heavy smoking or older men.OBJECTIVES To raise awareness of blood pressure, measured by number of countries involved, number of people screened, and number of people who have untreated or inadequately treated hypertension. METHODS An opportunistic cross-sectional survey of volunteers aged at least 18 years was carried out in May 2017. Blood pressure measurement, the definition of hypertension and statistical analysis followed the standard May measurement month protocol. Eighteen countries in Latin America and the Caribbean participated in the campaign, providing us with a wide sample for characterization. RESULTS During May measurement month 2017 in Latin America and the Caribbean, 105 246 individuals were screened. Participants who had cardiovascular disease, 2245 (2.3%) had a prior myocardial infarction, and 1711 (1.6%) a previous stroke, additionally 6760 (6.4%) individuals were diabetic, 7014 (6.7%) current smokers and 9262 (8.8%) reported alcohol intake once or more per week. Mean SBP was 122.7 mmHg and DBP was 75.6 mmHg. After imputation, 42 328 participants (40,4%) were found to be hypertensive. CONCLUSION The high numbers of participants detected with hypertension and the relatively large proportion of participants on antihypertensive treatment but with uncontrolled hypertension reinforces the importance of this annual event in our continent, to raise awareness of the prevention of cardiovascular events.
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