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OBJECTIVE: The COVID-19 pandemic had a major impact on medical care. This study evaluated the influence of the pandemic on blood pressure (BP) control and hypertension phenotypes as assessed by office and 24-hour ambulatory BP monitoring (ABPM). DESIGN AND METHODS: Data were collected from 33 centers including Excellence Centers of the European Society of Hypertension. Two groups of patients with treated hypertension were compared. Pandemic group: including participants who had ABPM twice - at visit 2 during the COVID-19 pandemic and visit 1 performed 9-15 months prior to visit 2. Pre-pandemic group: had ABPM at two visits, performed before the pandemic within 9-15 months interval. We determined the following hypertension phenotypes: masked hypertension, white coat hypertension, sustained controlled hypertension (SCH) and sustained uncontrolled hypertension (SUCH). We analyzed the prevalence of phenotypes and their changes between visits. RESULTS: Data of 1419 patients, 616 (43 %) in the pandemic group and 803 (57 %) in the pre-pandemic group, were analyzed. At baseline (visit 1), the prevalence of hypertension phenotypes did not differ between groups. In the pandemic group, the change in hypertension phenotypes between two visits was not significant (p = 0.08). In contrast, in the pre-pandemic group, the prevalence of SCH increased during follow-up (28.8 % vs 38.4 %, p < 0.01) while the prevalence of SUCH decreased (34.2 % vs 27.8 %, p < 0.01). In multivariable adjusted analysis, the only factor influencing negative changes of hypertension phenotypes was the COVID-19 pandemic period. CONCLUSION: These results indicate a negative impact of the COVID-19 pandemic on BP control assessed by hypertension phenotypes.
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Blood pressure (BP) is a key contributor to the lifetime risk of preclinical organ damage and cardiovascular disease. Traditional clinic-based BP readings are typically measured infrequently and under standardized/resting conditions and therefore do not capture BP values during normal everyday activity. Therefore, current hypertension guidelines emphasize the importance of incorporating out-of-office BP measurement into strategies for hypertension diagnosis and management. However, conventional home and ambulatory BP monitoring devices use the upper-arm cuff oscillometric method and only provide intermittent BP readings under static conditions or in a limited number of situations. New innovations include technologies for BP estimation based on processing of sensor signals supported by artificial intelligence tools, technologies for remote monitoring, reporting and storage of BP data, and technologies for BP data interpretation and patient interaction designed to improve hypertension management ("digital therapeutics"). The number and volume of data relating to new devices/technologies is increasing rapidly and will continue to grow. This International Society of Hypertension position paper describes the new devices/technologies, presents evidence relating to new BP measurement techniques and related indices, highlights standard for the validation of new devices/technologies, discusses the reliability and utility of novel BP monitoring devices, the association of these metrics with clinical outcomes, and the use of digital therapeutics. It also highlights the challenges and evidence gaps that need to be overcome before these new technologies can be considered as a user-friendly and accurate source of novel BP data to inform clinical hypertension management strategies.
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Determinação da Pressão Arterial , Hipertensão , Humanos , Pressão Sanguínea , Determinação da Pressão Arterial/métodos , Monitorização Ambulatorial da Pressão Arterial/métodos , Monitorização Ambulatorial da Pressão Arterial/instrumentação , Hipertensão/diagnóstico , Hipertensão/fisiopatologia , América Latina , Sociedades Médicas , Literatura de Revisão como AssuntoRESUMO
BACKGROUND: We aimed to determine the influence of coronavirus disease 2019 (COVID-19) pandemic on blood pressure (BP) control assessed by ambulatory blood pressure monitoring (ABPM). METHODS: Office BP and ABPM data from two visits conducted within a 9-15 months interval were collected from patients treated for hypertension. In the prepandemic group, both visits took place before, while in the pandemic group, Visit-1 was done before and Visit-2 during the pandemic period. RESULTS: Of 1811 collected patients 191 were excluded because they did not meet the required ABPM time frames. Thus, the study comprised 704 patients from the pandemic and 916 from the prepandemic group. Groups did not differ in sex, age, duration of hypertension, frequency of first line antihypertensive drug use and mean 24âh BP on Visit-1. The prevalence of sustained uncontrolled hypertension was similar in both groups. On Visit-2 mean 24âh BP, daytime and nighttime systolic BP and diastolic BP were higher in the pandemic compared to the prepandemic group ( P â<â0.034). The prevalence of sustained uncontrolled hypertension on Visit-2 was higher in the pandemic than in the prepandemic group [0.29 (95% confidence interval (95% CI): 0.26-0.33) vs. 0.25 (95% CI: 0.22-0.28), P â<â0.037]. In multivariable adjusted analyses a significant difference in BP visit-to-visit change was observed, with a more profound decline in BP between visits in the prepandemic group. CONCLUSIONS: This study using ABPM indicates a negative impact of the COVID-19 pandemic on BP control. It emphasizes the need of developing strategies to maintain BP control during a pandemic such as the one induced by COVID-19.
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Anti-Hipertensivos , Monitorização Ambulatorial da Pressão Arterial , Pressão Sanguínea , COVID-19 , Hipertensão , Humanos , COVID-19/epidemiologia , COVID-19/fisiopatologia , Hipertensão/fisiopatologia , Hipertensão/epidemiologia , Hipertensão/tratamento farmacológico , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Anti-Hipertensivos/uso terapêutico , SARS-CoV-2 , Europa (Continente)/epidemiologia , PandemiasRESUMO
BACKGROUND: The strong relationship between blood pressure (BP) and age is well known. Limited evidence suggests that a steeper age-BP slope may be associated with an increased risk of adverse outcomes. The May Measurement Month campaign enables an investigation of geographic, socioeconomic, and sex differences in age-related BP gradients and their association with public-health outcomes. METHODS: Cross-sectional, annual global BP May Measurement Month screening data were analyzed. Average systolic BP and age-related BP slopes across different age groups were calculated to assess regional, socioeconomic, and sex-stratified variations. The association of BP slopes derived from adjusted linear regression models with country-level health metrics was investigated. RESULTS: Age-related systolic BP gradients differed distinctly across global geographic regions, income levels, and between sexes. The steepest age gradients of BP were observed in populations from Africa and Europe. Women had lower BP levels than men at younger ages (20s and 30s) but subsequently experienced more pronounced age-related BP gradients. Geographically divergent age-related BP gradients were significantly associated with major national public health indicators. Globally, steeper age-related BP slopes were associated with poor BP control, increased disability-adjusted life years, and death rates. A steeper population age-BP slope of 1 mmâ Hg per 10 years was associated with a decrease in life expectancy of 3.3 years in this population (95% CI, -5.1 to -1.4; P=0.0007). CONCLUSIONS: Age-related BP gradients vary considerably across global populations and are associated with variability in BP-related risks and adverse outcomes across regions. Effective public health strategies may require region-specific targeting of adverse BP gradients to improve health outcomes.
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Pressão Sanguínea , Saúde Global , Hipertensão , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Pressão Sanguínea/fisiologia , Estudos Transversais , Hipertensão/fisiopatologia , Hipertensão/epidemiologia , Idoso , Fatores Etários , Adulto Jovem , Determinação da Pressão Arterial/métodos , Determinação da Pressão Arterial/estatística & dados numéricos , Fatores SexuaisRESUMO
Hypertension is among the most important risk factors for cardiovascular disease, chronic kidney disease, and dementia. The artificial intelligence (AI) field is advancing quickly, and there has been little discussion on how AI could be leveraged for improving the diagnosis and management of hypertension. AI technologies, including machine learning tools, could alter the way we diagnose and manage hypertension, with potential impacts for improving individual and population health. The development of successful AI tools in public health and health care systems requires diverse types of expertise with collaborative relationships between clinicians, engineers, and data scientists. Unbiased data sources, management, and analyses remain a foundational challenge. From a diagnostic standpoint, machine learning tools may improve the measurement of blood pressure and be useful in the prediction of incident hypertension. To advance the management of hypertension, machine learning tools may be useful to find personalized treatments for patients using analytics to predict response to antihypertension medications and the risk for hypertension-related complications. However, there are real-world implementation challenges to using AI tools in hypertension. Herein, we summarize key findings from a diverse group of stakeholders who participated in a workshop held by the National Heart, Lung, and Blood Institute in March 2023. Workshop participants presented information on communication gaps between clinical medicine, data science, and engineering in health care; novel approaches to estimating BP, hypertension risk, and BP control; and real-world implementation challenges and issues.
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AIMS: Guidelines recommend initiation of dual combination antihypertensive therapy, preferably single-pill combination (SPC), in most patients with hypertension. Evidence on narrowing gaps in clinical practice relative to guidelines is limited. METHODS AND RESULTS: Monte Carlo simulation was applied to 1.1 million patients qualifying for dual combination therapy from a previously conducted retrospective analysis of clinical practice, hospital statistics, and national statistics in the UK. We provide 10-year Kaplan-Meier event rates for the primary endpoint representing a composite of nonfatal myocardial infarction, nonfatal stroke (ischemic or hemorrhagic), nonfatal heart failure hospitalization or cardiovascular death. Cox model results from a previously conducted study were utilized to estimate baseline risk, together with evidence on risk reduction from the Blood Pressure Lowering Treatment Trialists' Collaboration (BPLTTC) meta-analysis and published evidence on BP-lowering efficacy of antihypertensive therapies. In the overall population, estimated 10-year event rates for the primary endpoint in patients with 100% persistence in monotherapy were 17.0% for irbesartan (I) and 17.6% for ramipril (R). These rates were only modestly better than that observed in clinical practice (17.8%). In patients with 100% persistence in dual therapy, estimated event rates were 13.6% for combinations of Irbesartan + Amlodipine (ARR = 8.7% compared to untreated) and 14.3% for Ramipril + Amlodipine (ARR = 8.0% compared to untreated). The absolute risk of the primary endpoint was reduced by 15.9% in patients with ASCVD and 6.6% in those without ASCVD. Similarly, the absolute risk was reduced by 11.7% in diabetics and 7.8% in those without diabetes. CONCLUSION: This study represents the first to investigate guidelines-based treatment in hypertensive patients and demonstrates the opportunity for considerable risk reduction by ensuring recommended dual therapy in clinical practice, particularly in the form of SPC with high persistence, relative to no treatment or monotherapy.
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OBJECTIVE: A novel automated auscultatory upper arm cuff blood pressure (BP) monitor KOROT V2 Doctor (InBody BPBIO280KV) was developed for professional use. An electronic stethoscope embedded in the device cuff records the Korotkoff sounds, which are graphically displayed during deflation allowing visual evaluation by the healthcare professional. The device provides automated measurements of BP and this study evaluated its accuracy. METHODS: The requirements of the Association for the Advancement of Medical Instrumentation/European Society of Hypertension/International Organization for Standardization (AAMI/ESH/ISO) Universal Standard (ISO 81060-2:2018) and its Amendment 1.2020-01 were applied. Participants were recruited to fulfill the age, sex, BP, arm circumference, and cuff distribution criteria of the Universal Standard and its Amendment in a general population using the same arm sequential measurement method. Three cuffs of the test device were tested for arm circumference 23-28, 28-35, and 33-42â cm. RESULTS: Data from 85 individuals were analyzed [mean age: 56.4â ±â 16.0 (SD) years, 50 men, arm circumference 23-42â cm]. For validation Criterion 1, the mean differenceâ ±SD between the test device and reference BP readings (Nâ =â 255) was -1.3 ± 6.0/1.5 ± 5.0â mmHg (systolic/diastolic; threshold ≤5â ±â 8â mmHg). For Criterion 2, the SD of the averaged BP differences per individual (Nâ =â 85) was 4.61/3.48â mmHg (systolic/diastolic; threshold ≤6.82/6.78â mmHg). CONCLUSION: The KOROT V2 Doctor (InBody BPBIO280KV) device for professional use, which provides automated auscultatory measurements with visual display of the Korotkoff sounds, comfortably fulfills all the requirements of the AAMI/ESH/ISO Universal Standard (ISO 81060-2:2018) in a general population and can be recommended for clinical use.
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Auscultação , Determinação da Pressão Arterial , Monitores de Pressão Arterial , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Adulto , Determinação da Pressão Arterial/instrumentação , Monitores de Pressão Arterial/normas , Auscultação/instrumentação , Braço , Pressão SanguíneaRESUMO
Measuring blood pressure (BP) and investigating arterial hemodynamics are essential in understanding cardiovascular disease and assessing cardiovascular risk. Several methods are used to measure BP in the doctor's office, at home, or over 24âh under ambulatory conditions. Similarly, several noninvasive methods have been introduced for assessing arterial structure and function; these methods differ for the large arteries, the small ones, and the capillaries. Consequently, when studying arterial hemodynamics, the clinician is faced with a multitude of assessment methods whose technical details, advantages, and limitations are sometimes unclear. Moreover, the conditions and procedures for their optimal implementation, and/or the reference normality values for the parameters they yield are not always taken into sufficient consideration. Therefore, a practice guideline summarizing the main methods and their use in clinical practice is needed. This expert group position paper was developed by an international group of scientists after a two-day meeting during which each of the most used methods and techniques for blood pressure measurement and arterial function and structure evaluation were presented and discussed, focusing on their advantages, limitations, indications, normal values, and their pragmatic clinical application.
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Artérias , Determinação da Pressão Arterial , Pressão Sanguínea , Humanos , Determinação da Pressão Arterial/métodos , Artérias/fisiologia , Pressão Sanguínea/fisiologia , Hemodinâmica/fisiologiaRESUMO
OBJECTIVE: The COVID-19 pandemic had an adverse impact on several cardiovascular risk factors. This study investigated the prevalence, awareness and treatment of hypertension in Greece before and after the pandemic. Data were collected in the context of the May Measurement Month (MMM) global survey initiated by the International Society of Hypertension. METHODS: Adult volunteers (age ≥ 18 years) were recruited through opportunistic screening in public areas across cities in Greece in 2019 and 2022. Medical history and triplicate sitting blood pressure (BP) measurements were taken using validated automated upper-arm cuff devices. The data were uploaded to the international MMM cloud platform. Hypertension was defined as systolic BP ≥ 140 mm Hg and/or diastolic ≥90 mm Hg and/or self-reported use of drugs for hypertension. The same threshold was used to define uncontrolled BP in treated individuals. RESULTS: Data from 12,080 adults were collected (5,727/6,353 in MMM 2019/2022; men 46/49%, p < 0.01; mean age 52.7 ± 16.6/54.8 ± 16.2, p < 0.001; smokers, 24.7/30.5, p < 0.001; diabetics 12/11.5%, p = NS; cardiovascular disease 5/5.8%, p = NS). The prevalence of hypertension was 41.6/42.6% (MMM 2019/2022, p = NS), with 21.3/27.5% of individuals with hypertension being unaware of their condition (p < 0.001), 5.6/2.4% aware untreated (p < 0.001), 24.8/22.1% treated uncontrolled (p < 0.05), and 48.3/47.8% treated controlled (p = NS). CONCLUSION: In Greece, the COVID-19 pandemic did not appear to affect the prevalence and control of hypertension; however, the rate of undiagnosed hypertension was higher after the pandemic. National strategies need to be implemented for the early detection and optimal management of hypertension in the general population in Greece.
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OBJECTIVE: A novel automated auscultatory upper-arm cuff blood pressure (BP) monitor for office use (KOROT P3 Accurate, previously InBody BPBIO480KV), which displays Korotkoff sound curves for each BP reading was recently developed. This study investigated whether the review of Korotkoff sound curves by healthcare professionals further improves the accuracy of the device by identifying unreliable BP readings. METHODS: Three observers assessed independently the morphology of Korotkoff sound curves of BP measurements obtained during an ISO 81060-2:2018 validation study, and classified them as of good, fair, or poor quality (low amplitude or sound intensity, aberrant morphology, background noise, signal artifact, auscultatory gap, irregular rhythm). The observers were blinded to the study BP measurements. RESULTS: Korotkoff sound curves of 255 BP readings obtained in 85 individuals were analyzed (mean age 57.3â±â15.0âyears, 53 men). Of the SBP readings 80.4/12.2/7.4% were classified as good/fair/poor, and DBP 76.9/12.2/10.9%. Inter-observer agreement in detecting poor-quality curves was 84.7/83.1% (systolic/diastolic). Of poor-quality curves, 10.5/60.7% (systolic/diastolic) clustered in the same individuals. The validation criterion 1 [mean test-reference BP difference ≤5â±â8 (SD) mmHg] was satisfied for readings with good (0.1â±â4.9/0.3â±â3.8âmmHg, systolic/diastolic) and fair-quality curves (-0.4â±â6.4/0.2â±â5.0), but not for poor-quality ones (2.7â±â8.8/3.6â±â8.1). By excluding poor-quality readings (40 of 255), criterion 1 of the validation study was improved (0.2â±â4.9/0.2â±â3.9 versus 0.3â±â5.5/0.6â±â4.7âmmHg). CONCLUSION: The visual assessment of Korotkoff sounds generated during automated auscultatory BP measurement by the KOROT P3 Accurate professional monitor identifies unreliable readings and further improves the device accuracy.
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Auscultação , Determinação da Pressão Arterial , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Determinação da Pressão Arterial/métodos , Determinação da Pressão Arterial/instrumentação , Adulto , Auscultação/métodos , Idoso , Pressão Sanguínea/fisiologia , Monitores de Pressão Arterial , Reprodutibilidade dos TestesRESUMO
OBJECTIVES: Blood pressure (BP) variability (BPV) can be assessed using office (OBP), home (HBP), or ambulatory BP (ABP) measurements. This analysis investigated the association and agreement between OBP, HBP, and ABP measurements for BPV assessment at baseline and 10âweeks after initiating antihypertensive drug therapy. METHODS: Untreated hypertensive patients with elevated BPV were randomized to receive an angiotensin-converting enzyme inhibitor (ramipril) or a calcium channel blocker (nifedipine GITS) in a 10-week, open-label, blinded-end point study. BPV was assessed using standard deviation (SD) and coefficient of variation (CV) (reading-to-reading analyses). RESULTS: Data from 146 participants from three research centers (Athens/Greece; Milan/Italy; Shanghai/China) were analyzed [mean age 53â±â10 (SD) years, male individuals 60%, baseline systolic OBP, HBP, and 24âh ABP 144â±â9, 138â±â10, and 143â±â10âmmHg, respectively]. Post-treatment minus pre-treatment systolic CV difference was: OBP: 0.3%, P â=â0.28; HBP: -0.2%, P â=â0.20; 24âh ABP: 1.1%, P â<â0.001. Home and ambulatory (not office) BPV indices presented weak-to-moderate correlation, both before and during treatment (range of coefficients 0.04-0.33). The correlation coefficient between systolic HBP and awake ABP CV was 0.21 and 0.28 before and during treatment, respectively ( P â<â0.05/<â0.001, respectively). Home and ambulatory (not office) BPV indices presented slight-to-fair agreement (range 64-73%) in detecting participants with high systolic BPV (top quartile of respective distributions) both before and during treatment (kappa range 0.04-0.27). CONCLUSION: These data showed a weak-to-moderate association between out-of-office (but not office) BPV indices both before and during BP-lowering treatment, with reasonable agreement in detecting individuals with high BPV. Out-of-office BP measurements provide more similar and consistent BPV information than office measurements.
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Anti-Hipertensivos , Monitorização Ambulatorial da Pressão Arterial , Pressão Sanguínea , Hipertensão , Humanos , Masculino , Pessoa de Meia-Idade , Anti-Hipertensivos/uso terapêutico , Feminino , Pressão Sanguínea/efeitos dos fármacos , Hipertensão/tratamento farmacológico , Hipertensão/fisiopatologia , Monitorização Ambulatorial da Pressão Arterial/métodos , Adulto , Ramipril/uso terapêutico , Idoso , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Nifedipino/uso terapêuticoRESUMO
Recent evidence suggests that an exaggerated blood pressure (BP) response to standing (ERTS) is associated with an increased risk of adverse outcomes, both in young and old individuals. In addition, ERTS has been shown to be an independent predictor of masked hypertension. In the vast majority of studies reporting on the prognostic value of orthostatic hypertension (OHT), the definition was based only on systolic office BP measurements. This consensus statement provides recommendations on the assessment and management of individuals with ERTS and/or OHT. ERTS is defined as an orthostatic increase in SBP at least 20âmmHg and OHT as an ERTS with standing SBP at least 140âmmHg. This statement recommends a standardized methodology to assess ERTS, by considering body and arm position, and the number and timing of BP measurements. ERTS/OHT should be confirmed in a second visit, to account for its limited reproducibility. The second assessment should evaluate BP changes from the supine to the standing posture. Ambulatory BP monitoring is recommended in most individuals with ERTS/OHT, especially if they have high-normal seated office BP. Implementation of lifestyle changes and close follow-up are recommended in individuals with ERTS/OHT and normotensive seated office BP. Whether antihypertensive treatment should be administered in the latter is unknown. Hypertensive patients with ERTS/OHT should be managed as any other hypertensive patient. Standardized standing BP measurement should be implemented in future epidemiological and interventional studies.
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Pressão Sanguínea , Hipertensão , Humanos , Hipertensão/fisiopatologia , Hipertensão/diagnóstico , Hipertensão/terapia , Pressão Sanguínea/fisiologia , Determinação da Pressão Arterial/métodos , Consenso , Posição Ortostática , Europa (Continente) , Monitorização Ambulatorial da Pressão Arterial/métodosRESUMO
BACKGROUND: Atrial fibrillation (AF) is often asymptomatic and undiagnosed. As AF and hypertension often coexist, opportunistic AF detection during routine automated blood pressure (BP) measurement appears to be an attractive screening method. METHODS: A systematic literature search was conducted to identify studies assessing the diagnostic test accuracy of office, home, or 24-hour ambulatory BP measuring devices with AF detection algorithms versus reference electrocardiography. Analyses were performed per participant (AF status based on several BP readings; most office/home devices) or per reading (AF status based on individual readings; all ambulatory devices). A meta-analysis stratified by device type (office/home/ambulatory) was conducted to calculate pooled measures of diagnostic accuracy. Sensitivity/meta-regression analyses were also performed. RESULTS: Among 3096 records initially retrieved, 23 diagnostic test accuracy studies were included. Data derived from 11â 093 individuals (weighted age 69 years, males 56%, hypertensives 79%, diabetics 24%, and AF prevalence 17%) indicated a pooled sensitivity 0.97 (95% CI, 0.92-0.99), specificity 0.93 (95% CI, 0.90-0.95), and accuracy 0.93 (95% CI, 0.89-0.95), with generally consistent results using office, home, or ambulatory BP devices (slightly lower specificity with the latter). The positive and negative predictive values were 0.70 (95% CI, 0.60-0.80) and 0.99 (95% CI, 0.98-1.00), respectively. Sensitivity analyses indicated lower specificity in studies implementing reading versus participant analyses. Most studies presented a low risk of bias and minor applicability concerns. CONCLUSIONS: There is considerable and consistent evidence suggesting high diagnostic accuracy of AF detection algorithms implemented in automated BP monitors during routine BP measurements in and out of the office. AF diagnosis requires verification (electrocardiography) before treatment is administered.
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Fibrilação Atrial , Monitorização Ambulatorial da Pressão Arterial , Hipertensão , Programas de Rastreamento , Humanos , Fibrilação Atrial/diagnóstico , Fibrilação Atrial/fisiopatologia , Monitorização Ambulatorial da Pressão Arterial/métodos , Hipertensão/diagnóstico , Hipertensão/fisiopatologia , Hipertensão/epidemiologia , Programas de Rastreamento/métodos , Determinação da Pressão Arterial/métodos , Determinação da Pressão Arterial/estatística & dados numéricos , Sensibilidade e Especificidade , Algoritmos , Visita a Consultório Médico/estatística & dados numéricos , Feminino , Masculino , Eletrocardiografia/métodosRESUMO
BACKGROUND: The prognostic relevance of short-term blood pressure (BP) variability in hypertension is not clearly established. We aimed to evaluate the association of short-term BP variability, with all-cause and cardiovascular mortality in a large cohort of patients with hypertension. METHODS: We selected 59 124 patients from the Spanish Ambulatory Blood Pressure Monitoring Registry from 2004 to 2014 (median follow-up: 9.7 years). Systolic and diastolic BP SD and coefficient of variation from daytime and nighttime, weighted SD, weighted coefficient of variation, average real variability (mean of differences between consecutive readings), and BP variability ratio (ratio between systolic and diastolic 24-hour SD) were calculated through baseline 24-hour ambulatory BP monitoring. Association with all-cause and cardiovascular mortality were assessed by Cox regression models adjusted for clinical confounders and BP. RESULTS: Patients who died during follow-up had higher values of BP variability compared with those remaining alive. In adjusted models systolic and diastolic daytime and weighted SD and coefficient of variation, average real variability, as well as systolic nighttime SD and BP variability ratio were all significantly associated with all-cause and cardiovascular mortality. Hazard ratios for 1-SD increase in the systolic components ranged from 1.05 to 1.12 for all-cause mortality and from 1.07 to 1.17 for cardiovascular mortality. A daytime SD≥13 mmâ Hg, a nighttime and a weighted SD≥12 mmâ Hg, and an average real variability ≥10 mmâ Hg, all systolic, were independently associated with mortality. CONCLUSIONS: Short-term blood pressure variability shows a relatively weak but significant association with all-cause and cardiovascular mortality in patients with hypertension.
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Monitorização Ambulatorial da Pressão Arterial , Hipertensão , Humanos , Pressão Sanguínea/fisiologia , Prognóstico , Sistema de RegistrosRESUMO
OBJECTIVES: Ambulatory (ABP) and self-home blood pressure (HBP) measurements are known to be superior to office blood pressure (OBP) measurements in predicting cardiovascular events. Whether ABP has superior prognostic ability than HBP, or the reverse, has not been adequately investigated. METHODS: A systematic literature search was conducted to identify outcome studies investigating HBP and ABP in the same population. A meta-analysis was conducted to calculate the pooled measure of risk regarding the primary endpoint of each study for each method. Primary analysis included the comparison of pooled estimates of HBP versus 24âh ABP. RESULTS: Among 2587 articles retrieved, 6 fulfilled the inclusion criteria. Meta-analysis of five studies ( n â=â4439, weighted age 57âyears, men 52%, hypertension 68%, diabetes 15%, cardiovascular disease 11%) indicated pooled hazard ratio per 10âmmHg increase in systolic HBP 1.36 (95% CI 1.23-1.50) and in 24âh ABP 1.38 (1.22-1.57) for the primary endpoint of each study ( z -test P â=âNS). Meta-analysis of five studies ( n â=â4497, weighted age 58âyears, men 51%, hypertension 65%, diabetes 15%, cardiovascular disease 9%) indicated pooled hazard ratio per 10âmmHg increase in systolic HBP 1.29 (1.14-1.47), daytime ABP 1.30 (1.15-1.46) and nighttime ABP 1.31 (1.14-1.50) ( z -test, P â=âNS). Data for DBP were similar. All studies were deemed to have low risk of bias. In studies comparing all the three methods, OBP provided the lowest hazard ratio. CONCLUSION: This meta-analysis of the available prospective outcome studies suggested that HBP and ABP have similar ability in predicting outcome and superior to OBP.
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Doenças Cardiovasculares , Diabetes Mellitus , Hipertensão , Masculino , Humanos , Pessoa de Meia-Idade , Monitorização Ambulatorial da Pressão Arterial , Determinação da Pressão Arterial/métodos , Doenças Cardiovasculares/diagnóstico , Prognóstico , Estudos Prospectivos , Hipertensão/diagnóstico , Pressão Sanguínea/fisiologia , Diabetes Mellitus/diagnósticoRESUMO
OBJECTIVE: To evaluate the blood pressure (BP) measurement accuracy of the Braun BUA4000 automated oscillometric upper-arm cuff device for self-home use in a general population according to the Association for the Advancement of Medical Instrumentation/European Society of Hypertension/International Organization for Standardization (AAMI/ESH/ISO) Universal Standard (ISO 81060-2:2018) and its Amendment 1.2020-01. METHODS: Participants were recruited to fulfill the age, sex, BP and limb circumference distribution criteria of the AAMI/ESH/ISO Universal Standard in a general population using the same arm sequential BP measurement method. A single wide-range cuff of the test device was used for arm circumference range 22-42â cm. RESULTS: A total of 98 individuals were recruited and 85 were analyzed [mean age 60.3â ±â 16.1 (SD) years, 44 men, arm circumference 31.5â ±â 5.1â cm, range 22-41.5â cm]. For validation criterion 1, the mean difference ± SD between the test device and reference BP readings ( N â =â 255) was 0.9â ±â 6.4/-0.3â ±â 6.4â mmHg (systolic/diastolic; threshold ≤5â ±â 8â mmHg). For criterion 2, the SD of the averaged BP differences between the test device and reference BP per individual ( N â =â 85) was 5.15/5.81â mmHg (systolic/diastolic; threshold ≤6.88/6.95â mmHg). CONCLUSION: The Braun BUA4000 automated oscillometric BP monitor fulfilled all the requirements of the AAMI/ESH/ISO Universal Standard in a general population and can be recommended for self-monitoring of BP by patients at home.
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Monitores de Pressão Arterial , Hipertensão , Masculino , Humanos , Adulto , Pessoa de Meia-Idade , Idoso , Pressão Sanguínea , Hipertensão/diagnóstico , Determinação da Pressão Arterial , Padrões de ReferênciaRESUMO
OBJECTIVE: This study evaluated the accuracy of the automated oscillometric upper-arm cuff device AVITA BPM82 intended for home use in a general population according to the Association for the Advancement of Medical Instrumentation/European Society of Hypertension/International Organization for Standardization (AAMI/ESH/ISO) Universal Standard (ISO 81060-2:2018) and its Amendment 1.2020-01. METHODS: Participants were recruited to fulfill the age, sex, blood pressure (BP), and limb distribution criteria of the AAMI/ESH/ISO Universal Standard and its Amendment 1.2020-01 in a general population using the same arm sequential BP measurement method. Two cuffs of the test device were used for arm circumference 22-33 (medium) and 33-42â cm (large). RESULTS: One-hundred-one individuals were recruited and 85 were analyzed [mean age 57.3â ±â 15.1 (SD) years, 46 men, arm circumference 32â ±â 5.1â cm, range 22.3-42â cm]. For validation Criterion 1, the mean difference ±SD between the test device and reference BP readings (Nâ =â 255) was 1.3â ±â 6.5/3.6â ±â 5.9â mmHg (systolic/diastolic; threshold ≤5â ±â 8â mmHg). For Criterion 2, the SD of the averaged BP differences between the test device and reference BP per individual (Nâ =â 85) was 5.70/5.25â mmHg (systolic/diastolic; threshold ≤6.82/5.89â mmHg). CONCLUSIONS: The automated oscillometric home BP monitor AVITA BPM82 comfortably fulfilled all the requirements of the AAMI/ESH/ISO Universal Standard (ISO 81060-2:2018) and its Amendment 1.2020-01 in a general population and can be recommended for clinical use.