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1.
Hypertension during Diabetic Ketoacidosis in Children.
DePiero, A, Kuppermann, N, Brown, KM, Schunk, JE, McManemy, JK, Rewers, A, Stoner, MJ, Tzimenatos, L, Garro, A, Myers, SR, et al
The Journal of pediatrics. 2020;:156-163.e5
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Abstract
OBJECTIVES To characterize hemodynamic alterations occurring during diabetic ketoacidosis (DKA) in a large cohort of children and to identify clinical and biochemical factors associated with hypertension. STUDY DESIGN This was a planned secondary analysis of data from the Pediatric Emergency Care Applied Research Network Fluid Therapies Under Investigation in DKA Study, a randomized clinical trial of fluid resuscitation protocols for children in DKA. Hemodynamic data (heart rate, blood pressure) from children with DKA were assessed in comparison with normal values for age and sex. Multivariable statistical modeling was used to explore clinical and laboratory predictors of hypertension. RESULTS Among 1258 DKA episodes, hypertension was documented at presentation in 154 (12.2%) and developed during DKA treatment in an additional 196 (15.6%), resulting in a total of 350 DKA episodes (27.8%) in which hypertension occurred at some time. Factors associated with hypertension at presentation included more severe acidosis, (lower pH and lower pCO2), and stage 2 or 3 acute kidney injury. More severe acidosis and lower Glasgow Coma Scale scores were associated with hypertension occurring at any time during DKA treatment. CONCLUSIONS Despite dehydration, hypertension occurs in a substantial number of children with DKA. Factors associated with hypertension include greater severity of acidosis, lower pCO2, and lower Glasgow Coma Scale scores during DKA treatment, suggesting that hypertension might be centrally mediated.
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Blood Pressure Targets Achievement According to 2018 ESC/ESH Guidelines in Three European Excellence Centers for Hypertension.
Tocci, G, Presta, V, Ferri, C, Redon, J, Volpe, M
High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension. 2020;(1):51-59
Abstract
INTRODUCTION The most recent European guidelines on hypertension redefined office blood pressure (BP) treatment targets according to age strata and cardiovascular (CV) risk profile. AIM: To evaluate proportions of adult outpatients achieving office BP treatment targets recommended by current compared to previous hypertension guidelines. METHODS We extracted data from medical databases of adult outpatients followed in three excellence centers in hypertension (Rome, Italy; L'Aquila, Italy; Valencia, Spain). Office BP treatment targets were defined according to either 2013 ESH/ESC guidelines (< 140/90 mmHg in non-diabetic individuals aged 18-80 years, < 150/90 mmHg in those aged ≥ 80 years, and < 140/85 mmHg in diabetic individuals), or 2018 ESC/ESH guidelines: (< 130/80 mmHg in individuals aged 18-65 years, < 140/80 mmHg in those aged 65-79 and ≥ 80 years). SCORE risk was assessed in all patients. RESULTS From an overall sample of 14,229 adult subjects, 4049 (28.5%) resulted normotensive individuals, 3088 (21.7%) were untreated and 7092 (49.8%) treated hypertensive outpatients. Treated hypertensives showed significantly higher ESC score risk (8.3 ± 13.0% vs. 3.9 ± 8.4%; P < 0.001) and lower systolic/diastolic BP (140.6 ± 18.8/83.9 ± 11.5 vs. 148.3 ± 14.2/94.7 ± 10.1 mmHg; P < 0.001) than untreated hypertensives. Compared to previous guidelines, BP control significantly lowered in non-diabetic outpatients (n = 5847) of all age groups [18-65 years: (13.1% vs. 42.9%), 65-79 years (25.8% vs. 42.5%) and ≥ 80 years (29.1% vs. 66.0%); P < 0.001 for all comparisons]; similar reductions were observed in diabetic outpatients (n = 1245) [18-65 years (32.7% vs. 14.8%), 65-79 years (37.3% vs. 24.7%) and ≥ 80 years (47.1% vs. 27.9%); P < 0.001]. CONCLUSIONS According to the recommended new office BP treatment targets, the proportions of treated uncontrolled hypertensive patients substantially increased. These findings should prompt a tighter application of therapeutic recommendations and, thus, highlight the need for improving hypertension management and control strategies.
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DASH (Dietary Approaches to Stop Hypertension) dietary pattern and maternal blood pressure in pregnancy.
Courtney, AU, O'Brien, EC, Crowley, RK, Geraghty, AA, Brady, MB, Kilbane, MT, Twomey, PJ, McKenna, MJ, McAuliffe, FM
Journal of human nutrition and dietetics : the official journal of the British Dietetic Association. 2020;(5):686-697
Abstract
BACKGROUND High blood pressure (BP) in pregnancy is associated with significant adverse outcomes. In nonpregnant populations, the DASH (Dietary Approaches to Stop Hypertension) diet is associated with reductions in blood pressure. The present study investigated the relationship between the DASH dietary pattern and maternal BP in pregnancy. METHODS This is an observational study of 511 women who participated in the ROLO study (Randomized cOntrol trial of LOw glycaemic index diet for the prevention of recurrence of macrosomia), 2007-2011, Dublin, Ireland. Auscultatory blood pressure, systolic blood pressure (SBP) and diastolic blood pressure (DBP) measurements were taken. Mean arterial pressure (MAP) was calculated. Dietary intakes were recorded using 3-day food diaries in each trimester. DASH scoring criteria were used to score and rank participants from low to high intakes of foods recommended in the DASH diet. Statistical analysis using analysis of variance and multiple linear regression were used to determine the relationship between maternal BP and DASH scores. RESULTS Dietary intake more closely resembling the DASH dietary recommendations throughout pregnancy was associated with a lower DBP (mmHg) in trimesters 1 [B: -0.70; 95% confidence interval (CI) = -1.21 to -0.18] and 3 (B: -0.68; 95% CI = -1.19 to -0.17), as well as lower MAP (mmHg) in trimesters 1 (B: -0.78; 95% CI = -1.33 to -0.25) and 3 (B: -0.54; 95% CI = -1.04 to -0.04), controlling for body mass index, age, education, energy intake and intervention grouping. CONCLUSIONS The DASH dietary pattern was associated with lower maternal BP in pregnancy among healthy women without hypertensive disorders of pregnancy. Despite the observational nature of these findings, the results demonstrate the potential for healthcare professionals to intervene to promote cardiovascular health in pregnancy.
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Implications of Guideline Updates for the Management of Apparent Treatment Resistant Hypertension in the United States (A NCDR Research to Practice [R2P] Project).
Maw, AM, Thompson, LE, Ho, PM, Kennedy, KF, Maddox, TM, Valle, JA, Sandhu, A, Masoudi, FA, Messerli, FH, Daugherty, SL
The American journal of cardiology. 2020;(1):63-67
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Abstract
The 2018 resistant hypertension scientific statement offers new treatment recommendations. To determine the implications of these changes, we sought to ascertain the prevalence of apparent treatment resistant hypertension (aTRH) and the therapies used to treat it in an US national ambulatory cardiovascular registry before these recent developments. Using the PINNACLE Registry from 2013 to 2014, we identified all patients receiving treatment for hypertension and then determined the proportion with aTRH as those who met the following criteria over ≥2 consecutive visits: (1) 3 blood pressure medication classes including a diuretic and blood pressure >140/90, OR (2) ≥4 blood pressure medications. Among those with aTRH, we examined past use of therapies now recommended in guidelines including: (1) first-line therapy with an angiotensin-converting enzyme inhibitor or angiotensin-II receptor blocker, calcium channel blocker and a thiazide diuretic, (2) use of chlorthalidone, and (3) use of a mineralocorticoid receptor antagonist (MRA) for those requiring a 4th medication. Of 84,624 patients on treatment for hypertension, 11,147 (13.1%) met criteria for prevalent aTRH. Among these patients: (1) Of those on 3 antihypertensive agents (n = 1,255), 315 (25%) were on the first-line regimen now recommended in guidelines, (2) 520 (6.7%) of the 7,930 patients on thiazides were using chlorthalidone, and (3) 3061 (27%) were using a MRA; another 4,523 (40.6%) were eligible for its addition. In conclusion, our findings of low historic use of therapies now recommended in guidelines suggest opportunities to improve care among patients with aTRH.
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Conditional prescriptions of oral antihypertensive drugs for the management of hypertension urgencies in the inpatient setting: An observational study.
Pieragostini, R, Perrin, G, Nevoret, C, Amar, L, Jannot, AS, Sabatier, P, Korb-Savoldelli, V, Sabatier, B
Journal of clinical pharmacy and therapeutics. 2020;(2):282-289
Abstract
WHAT IS KNOWN AND OBJECTIVES The management of hypertension urgencies during hospitalization may generally not necessitate urgent care. However, physicians frequently prescribe 'as needed' antihypertensive drugs for which administration is triggered by blood pressure thresholds. The lack of rationale for this hospital practice led us to study oral conditional antihypertensive (OCA) prescriptions. We aimed to estimate the prevalence of OCA prescriptions and to establish their characteristics. METHODS In our institution, prescriptions are computerized. The study was retrospectively performed using a hospital clinical data warehouse over a 5-year period. RESULTS AND DISCUSSION The prevalence of OCA prescriptions was 6.9% among subjects treated with an antihypertensive drug. The median duration of these prescriptions was 4 days, until the day of the patient discharge in 78.8% stays. The calcium channel inhibitors were the main (79.9%) pharmacological class prescribed, with mostly prescriptions of nicardipine. OCA prescriptions were associated with another antihypertensive medication in 58.8% of the prescriptions; for 19.3%, it was a medication belonging to the same pharmacological class than the OCA drug prescribed. Regarding the computerized drafting, 39.6% of the conditional prescriptions were considered uninterpretable. At least one administration by nurses concerned 65.1% of the OCA prescriptions. The mean SBP and DBP before the initiation of an OCA drug was 142.9 ± 28.2 and 75.8 ± 24.5 mm Hg, respectively, relative to 143.0 ± 24.9 and 77.6 ± 19.9 mm Hg after the initiation (P = .8 for SBP and P = .06 for DBP). WHAT IS NEW AND CONCLUSION The originality of this study lies in the use of a clinical data warehouse to evaluate OCA prescriptions in hospital. These prescriptions are current, often uninterpretable and mostly ordered until patient discharge. Such drug orders could be associated with an increased risk of iatrogenic events and/or administration errors. This underlies the need for developing decision support tools and computerized protocols to manage hypertension urgencies.
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Unsolved Problem: (Isolated) Systolic Hypertension with Diastolic Blood Pressure below the Safety Margin.
Koracevic, G, Stojanovic, M, Kostic, T, Lovic, D, Tomasevic, M, Jankovic-Tomasevic, R
Medical principles and practice : international journal of the Kuwait University, Health Science Centre. 2020;(4):301-309
Abstract
The problem of high systolic blood pressure (sBP) combined with low diastolic blood pressure (dBP) requires attention because sBP is directly and continuously related to the most important criterion, i.e., all-cause mortality, whereas dBP becomes inversely related to it after the age of 50-60 years. The European Society of Cardiology and European Society of -Hypertension (ESC/ESH) 2018 guidelines for hypertension (HTN) are helpful because they recommend a lower safety cut-off for in-treatment dBP. To prevent tissue hypoperfusion, these guidelines recommend that dBP should be ≥70 mm Hg during treatment. A patient with very elevated sBP (e.g., 220 mm Hg) and low dBP (e.g., 65 mm Hg) is difficult to treat if one strictly follows the guidelines. In this situation, the sBP is a clear indication for antihypertensive treatment, but the dBP is a relative contraindication (as it is <70 mm Hg, a safety margin recognized by the 2018 ESC/ESH guidelines). The dilemma about whether or not to treat isolated systolic hypertension (SH) patients with low dBP (<70 mm Hg) is evident from the fact that almost half (45%) remain untreated. This is a common occurrence and identifying this problem is the first step to solving it. We suggest that an adequate search and analysis should be performed, starting from the exploration of the prognosis of the isolated (I)SH subset of patients with a very low dBP (<70 mm Hg) at the beginning of already performed randomized clinical trials.
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Potassium Intake and Blood Pressure: A Dose-Response Meta-Analysis of Randomized Controlled Trials.
Filippini, T, Naska, A, Kasdagli, MI, Torres, D, Lopes, C, Carvalho, C, Moreira, P, Malavolti, M, Orsini, N, Whelton, PK, et al
Journal of the American Heart Association. 2020;(12):e015719
Abstract
Background Epidemiologic studies, including trials, suggest an association between potassium intake and blood pressure (BP). However, the strength and shape of this relationship is uncertain. Methods and Results We performed a meta-analysis to explore the dose-response relationship between potassium supplementation and BP in randomized-controlled trials with a duration ≥4 weeks using the recently developed 1-stage cubic spline regression model. This model allows use of trials with at least 2 exposure categories. We identified 32 eligible trials. Most were conducted in adults with hypertension using a crossover design and potassium supplementation doses that ranged from 30 to 140 mmol/d. We observed a U-shaped relationship between 24-hour active and control arm differences in potassium excretion and BP levels, with weakening of the BP reduction effect above differences of 30 mmol/d and a BP increase above differences ≈80 mmol/d. Achieved potassium excretion analysis also identified a U-shaped relationship. The BP-lowering effects of potassium supplementation were stronger in participants with hypertension and at higher levels of sodium intake. The BP increase with high potassium excretion was noted in participants with antihypertensive drug-treated hypertension but not in their untreated counterparts. Conclusions We identified a nonlinear relationship between potassium intake and both systolic and diastolic BP, although estimates for BP effects of high potassium intakes should be interpreted with caution because of limited availability of trials. Our findings indicate an adequate intake of potassium is desirable to achieve a lower BP level but suggest excessive potassium supplementation should be avoided, particularly in specific subgroups.
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Primary Prevention of Cardiovascular Risk in Lithuania-Results from EUROASPIRE V Survey.
Urbonas, G, Vencevičienė, L, Valius, L, Krivickienė, I, Petrauskas, L, Lazarenkienė, G, Karpavičienė, J, Briedė, G, Žučenkienė, E, Vencevičius, K
Medicina (Kaunas, Lithuania). 2020;(3)
Abstract
Background and Objectives: Cardiovascular disease (CVD) prevention guidelines define targets for lifestyle and risk factors for patients at high risk of developing CVD. We assessed the control of these factors, as well as CVD risk perception in patients enrolled into the primary care arm of the European Action on Secondary and Primary Prevention by Intervention to Reduce Events (EUROASPIRE V) survey in Lithuania. Materials and Methods: Data were collected as the part of the EUROASPIRE V survey, a multicenter, prospective, cross-sectional observational study. Adults without a documented CVD who had been prescribed antihypertensive medicines and/or lipid-lowering medicines and/or treatment for diabetes (diet and/oral antidiabetic medicines and/or insulin) were eligible for the survey. Data were collected through the review of medical records, patients' interview, physical examination and laboratory tests. Results: A total of 201 patients were enrolled. Very few patients reached targets for low-density lipoprotein cholesterol (LDL-C) (4.5%), waist circumference (17.4%) and body mass index (15.4%). Only 31% of very high CVD risk patients and 52% of high-risk patients used statins. Blood pressure target was achieved by 115 (57.2%) patients. Only 21.7% of patients at very high actual CVD risk and 27% patients at high risk correctly estimated their risk. Of patients at moderate actual CVD risk, 37.5% patients accurately self-assessed the risk. About 60%-80% of patients reported efforts to reduce the intake of sugar, salt or alcohol; more than 70% of patients were current nonsmokers. Only a third of patients reported weight reduction efforts (33.3%) or regular physical activity (27.4%). Conclusions: The control of cardiovascular risk factors in a selected group of primary prevention patients was unsatisfactory, especially in terms of LDL-C level and body weight parameters. Many patients did not accurately perceive their own risk of developing CVD.
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Effect of Pycnogenol on Blood Pressure: Findings From a PRISMA Compliant Systematic Review and Meta-Analysis of Randomized, Double-Blind, Placebo-Controlled, Clinical Studies.
Fogacci, F, Tocci, G, Sahebkar, A, Presta, V, Banach, M, Cicero, AFG
Angiology. 2020;(3):217-225
Abstract
Results of previous clinical trials evaluating the effect of pycnogenol supplementation on blood pressure (BP) are controversial. Therefore, we aimed to assess the impact of pycnogenol on BP through a systematic review of literature and meta-analysis of available randomized, double-blind, placebo-controlled clinical studies (randomized clinical trials [RCTs]). Literature search included SCOPUS, PubMed-Medline, ISI Web of Science, and Google Scholar databases up to January 10, 2019 to identify RCTs investigating the impact of pycnogenol on BP. Two investigators independently extracted data on study characteristics, methods, and outcomes. This systematic review and meta-analysis is registered in International Prospective Register of Systematic Reviews (PROSPERO) under number CRD42018112172. Overall, the impact of pycnogenol on BP was reported in 7 trials involving 626 participants. Meta-analysis did not suggest any significant improvement in systolic BP (weighted mean difference [WMD]: -0.028 mm Hg; 95% confidence interval [CI]: -0.182 to 0.127; P = .726; I2 = 46%), diastolic BP (WMD: -0.144 mm Hg; 95% CI: -0.299 to 0.010; P = .067; I2 = 0%), mean arterial pressure (WMD: -0.091 mm Hg; 95% CI: -0.246 to 0.063; P = .246; I2 = 0%), and pulse pressure (WMD: -0.003 mm Hg; 95% CI: -0.151 to 0.158; P = .966; I2 = 0%) following pycnogenol treatment. Results persisted in the leave-one-out sensitivity analysis. Therefore, the present meta-analysis does not suggest any significant effect of pycnogenol on BP.
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Mindfulness and cardiovascular health: Qualitative findings on mechanisms from the mindfulness-based blood pressure reduction (MB-BP) study.
Nardi, WR, Harrison, A, Saadeh, FB, Webb, J, Wentz, AE, Loucks, EB
PloS one. 2020;(9):e0239533
Abstract
BACKGROUND Mindfulness-based programs hold promise for improving cardiovascular health (e.g. physical activity, diet, blood pressure). However, despite theoretical frameworks proposed, no studies have reported qualitative findings on how study participants themselves believe mindfulness-based programs improved their cardiovascular health. With an emphasis on in-depth, open-ended investigation, qualitative methods are well suited to explore the mechanisms underlying health outcomes. The objective of this qualitative study was to explore the mechanisms through which the mindfulness-based program, Mindfulness-Based Blood Pressure Reduction (MB-BP), may influence cardiovascular health. METHODS This qualitative study was conducted as part of a Stage 1 single arm trial with one-year follow-up. The MB-BP curriculum was adapted from Mindfulness-Based Stress Reduction to direct participants' mindfulness skills towards modifiable determinants of blood pressure. Four focus group discussions were conducted (N = 19 participants), and seven additional participants were selected for in-depth interviews. Data analysis was conducted using the standard approach of thematic analysis. Following double-coding of audio-recorded transcripts, four members of the study team engaged in an iterative process of data analysis and interpretation. RESULTS Participants identified self-awareness, attention control, and emotion regulation as key mechanisms that led to improvements in cardiovascular health. Within these broader themes, many participants detailed a process beginning with increased self-awareness to sustain attention and regulate emotions. Many also explained that the specific relationship between self-awareness and emotion regulation enabled them to respond more skillfully to stressors. In a secondary sub-theme, participants suggested that higher self-awareness helped them engage in positive health behaviors (e.g. healthier dietary choices). CONCLUSION Qualitative analyses suggest that MB-BP mindfulness practices allowed participants to engage more effectively in self-regulation skills and behaviors lowering cardiovascular disease risk, which supports recent theory. Results are consistent with quantitative mechanistic findings showing emotion regulation, perceived stress, interoceptive awareness, and attention control are influenced by MB-BP.