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Abstract
OBJECTIVES Masked hypertension - a blood pressure (BP) phenotype characterized by a clinic BP in the normal range but elevated BP outside the office - is associated with early hypertension-mediated organ damage. This study examined early target organ manifestations of masked hypertension diagnosed by home (HBPM) and ambulatory (ABPM) BP monitoring. METHODS Left ventricular (LV) structure and diastolic function measured by echocardiography, microalbuminuria, and coronary artery calcification were evaluated in 420 patients with high clinic BP (SBP 120-150 mmHg or DBP 80-95 mmHg). Evidence of hypertension-mediated organ damage was compared in patients with sustained normotension, masked hypertension, and sustained hypertension based on measurements by HBPM, daytime ABPM, and 24-h ABPM. RESULTS The 420 participants averaged 48 (12) [mean (SD)] years of age; the average clinic BP was 130 (13)/81 (8) mmHg. In individuals with masked hypertension diagnosed by HBPM, indexed LV mass, relative wall thickness, and e' and E/e' (indices of LV relaxation), were generally intermediate between values observed in normotensives and sustained hypertensive patients, and were significantly greater in masked hypertension than normotensives. Similar trends were observed when masked hypertension was diagnosed by ABPM but a diagnosis of masked hypertension was not as reliably associated with LV remodeling or impaired LV relaxation in comparison to normotensives. There were trends towards greater likelihoods of detectable urinary microalbumin and coronary calcification in masked hypertension than in normotensives. CONCLUSION These results support previous studies demonstrating early hypertension-mediated organ damage in patients with masked hypertension, and suggest that HBPM may be superior to ABPM in identifying patients with masked hypertension who have early LV remodeling and diastolic LV dysfunction.
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Viera AJ, Yano Y, Lin FC, Simel DL, Yun J, Dave G, Von Holle A, Viera LA, Shimbo D, Hardy ST, Donahue KE, Hinderliter A, Voisin CE, Jonas DE. Does This Adult Patient Have Hypertension?: The Rational Clinical Examination Systematic Review. JAMA 2021; 326:339-347. [PMID: 34313682 DOI: 10.1001/jama.2021.4533] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
IMPORTANCE Office blood pressure (BP) measurements are not the most accurate method to diagnose hypertension. Home BP monitoring (HBPM) and 24-hour ambulatory BP monitoring (ABPM) are out-of-office alternatives, and ABPM is considered the reference standard for BP assessment. OBJECTIVE To systematically review the accuracy of oscillometric office and home BP measurement methods for correctly classifying adults as having hypertension, defined using ABPM. DATA SOURCES PubMed, Cochrane Library, Embase, ClinicalTrials.gov, and DARE databases and the American Heart Association website (from inception to April 2021) were searched, along with reference lists from retrieved articles. DATA EXTRACTION AND SYNTHESIS Two authors independently abstracted raw data and assessed methodological quality. A third author resolved disputes as needed. MAIN OUTCOMES AND MEASURES Random effects summary sensitivity, specificity, and likelihood ratios (LRs) were calculated for BP measurement methods for the diagnosis of hypertension. ABPM (24-hour mean BP ≥130/80 mm Hg or mean BP while awake ≥135/85 mm Hg) was considered the reference standard. RESULTS A total of 12 cross-sectional studies (n = 6877) that compared conventional oscillometric office BP measurements to mean BP during 24-hour ABPM and 6 studies (n = 2049) that compared mean BP on HBPM to mean BP during 24-hour ABPM were included (range, 117-2209 participants per analysis); 2 of these studies (n = 3040) used consecutive samples. The overall prevalence of hypertension identified by 24-hour ABPM was 49% (95% CI, 39%-60%) in the pooled studies that evaluated office measures and 54% (95% CI, 39%-69%) in studies that evaluated HBPM. All included studies assessed sensitivity and specificity at the office BP threshold of 140/90 mm Hg and the home BP threshold of 135/85 mm Hg. Conventional office oscillometric measurement (1-5 measurements in a single visit with BP ≥140/90 mm Hg) had a sensitivity of 51% (95% CI, 36%-67%), specificity of 88% (95% CI, 80%-96%), positive LR of 4.2 (95% CI, 2.5-6.0), and negative LR of 0.56 (95% CI, 0.42-0.69). Mean BP with HBPM (with BP ≥135/85 mm Hg) had a sensitivity of 75% (95% CI, 65%-86%), specificity of 76% (95% CI, 65%-86%), positive LR of 3.1 (95% CI, 2.2-4.0), and negative LR of 0.33 (95% CI, 0.20-0.47). Two studies (1 with a consecutive sample) that compared unattended automated mean office BP (with BP ≥135/85 mm Hg) with 24-hour ABPM had sensitivity ranging from 48% to 51% and specificity ranging from 80% to 91%. One study that compared attended automated mean office BP (with BP ≥140/90 mm Hg) with 24-hour ABPM had a sensitivity of 87.6% (95% CI, 83%-92%) and specificity of 24.1% (95% CI, 16%-32%). CONCLUSIONS AND RELEVANCE Office measurements of BP may not be accurate enough to rule in or rule out hypertension; HBPM may be helpful to confirm a diagnosis. When there is uncertainty around threshold values or when office and HBPM are not in agreement, 24-hour ABPM should be considered to establish the diagnosis.
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Affiliation(s)
- Anthony J Viera
- Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, North Carolina
| | - Yuichiro Yano
- Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, North Carolina
- Center for Novel and Exploratory Clinical Trials, Yokohama City University, Yokohama, Japan
| | - Feng-Chang Lin
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill
| | - David L Simel
- Durham Veterans Affairs Health System and Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | | | - Gaurav Dave
- Department of Medicine, Division of General Internal Medicine and Clinical Epidemiology, University of North Carolina at Chapel Hill
| | | | - Laura A Viera
- North Carolina Translational and Clinical Sciences Institute, University of North Carolina at Chapel Hill
| | - Daichi Shimbo
- Department of Medicine, Columbia University Irving Medical Center, New York, New York
| | - Shakia T Hardy
- Department of Epidemiology, University of Alabama at Birmingham
| | - Katrina E Donahue
- Department of Family Medicine, University of North Carolina at Chapel Hill
- Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
| | - Alan Hinderliter
- Department of Medicine, Division of Cardiology, University of North Carolina at Chapel Hill
| | - Christiane E Voisin
- Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
| | - Daniel E Jonas
- Department of Medicine, Division of General Internal Medicine and Clinical Epidemiology, University of North Carolina at Chapel Hill
- Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
- now with Department of Internal Medicine, Division of General Internal Medicine, The Ohio State University
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Guirguis-Blake JM, Evans CV, Webber EM, Coppola EL, Perdue LA, Weyrich MS. Screening for Hypertension in Adults: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force. JAMA 2021; 325:1657-1669. [PMID: 33904862 DOI: 10.1001/jama.2020.21669] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
IMPORTANCE Hypertension is a major risk factor for cardiovascular disease and can be modified through lifestyle and pharmacological interventions to reduce cardiovascular events and mortality. OBJECTIVE To systematically review the benefits and harms of screening and confirmatory blood pressure measurements in adults, to inform the US Preventive Services Task Force. DATA SOURCES MEDLINE, PubMed, Cochrane Collaboration Central Registry of Controlled Trials, and CINAHL; surveillance through March 26, 2021. STUDY SELECTION Randomized clinical trials (RCTs) and nonrandomized controlled intervention studies for effectiveness of screening; accuracy studies for screening and confirmatory measurements (ambulatory blood pressure monitoring as the reference standard); RCTs and nonrandomized controlled intervention studies and observational studies for harms of screening and confirmation. DATA EXTRACTION AND SYNTHESIS Independent critical appraisal and data abstraction; meta-analyses and qualitative syntheses. MAIN OUTCOMES AND MEASURES Mortality; cardiovascular events; quality of life; sensitivity, specificity, positive and negative predictive values; harms of screening. RESULTS A total of 52 studies (N = 215 534) were identified in this systematic review. One cluster RCT (n = 140 642) of a multicomponent intervention including hypertension screening reported fewer annual cardiovascular-related hospital admissions for cardiovascular disease in the intervention group compared with the control group (difference, 3.02 per 1000 people; rate ratio, 0.91 [95% CI, 0.86-0.97]). Meta-analysis of 15 studies (n = 11 309) of initial office-based blood pressure screening showed a pooled sensitivity of 0.54 (95% CI, 0.37-0.70) and specificity of 0.90 (95% CI, 0.84-0.95), with considerable clinical and statistical heterogeneity. Eighteen studies (n = 57 128) of various confirmatory blood pressure measurement modalities were heterogeneous. Meta-analysis of 8 office-based confirmation studies (n = 53 183) showed a pooled sensitivity of 0.80 (95% CI, 0.68-0.88) and specificity of 0.55 (95% CI, 0.42-0.66). Meta-analysis of 4 home-based confirmation studies (n = 1001) showed a pooled sensitivity of 0.84 (95% CI, 0.76-0.90) and a specificity of 0.60 (95% CI, 0.48-0.71). Thirteen studies (n = 5150) suggested that screening was associated with no decrement in quality of life or psychological distress; evidence on absenteeism was mixed. Ambulatory blood pressure measurement was associated with temporary sleep disturbance and bruising. CONCLUSIONS AND RELEVANCE Screening using office-based blood pressure measurement had major accuracy limitations, including misdiagnosis; however, direct harms of measurement were minimal. Research is needed to determine optimal screening and confirmatory algorithms for clinical practice.
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Affiliation(s)
- Janelle M Guirguis-Blake
- Department of Family Medicine, University of Washington, Tacoma
- Kaiser Permanente Evidence-based Practice Center, Center for Health Research, Kaiser Permanente, Portland, Oregon
| | - Corinne V Evans
- Kaiser Permanente Evidence-based Practice Center, Center for Health Research, Kaiser Permanente, Portland, Oregon
| | - Elizabeth M Webber
- Kaiser Permanente Evidence-based Practice Center, Center for Health Research, Kaiser Permanente, Portland, Oregon
| | - Erin L Coppola
- Kaiser Permanente Evidence-based Practice Center, Center for Health Research, Kaiser Permanente, Portland, Oregon
| | - Leslie A Perdue
- Kaiser Permanente Evidence-based Practice Center, Center for Health Research, Kaiser Permanente, Portland, Oregon
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Wu Y, Zhang G, Hu R, Du J. Risk of Target Organ Damage in Patients with Masked Hypertension versus Sustained Hypertension: A Meta-analysis. Cardiovascular Innovations and Applications 2021. [DOI: 10.15212/cvia.2019.1261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Objective: To compare the risk of target organ damage in masked hypertension (MH) and sustained hypertension (SH).Methods: A systematic review and meta-analysis was performed. A search of PubMed, Embase, and the Cochrane Library of relevant case-control studies was
performed from inception to December 2019, and articles on MH and SH selected according to the inclusion criteria were analyzed. The primary end point was target organ damage in the heart. The secondary end points were target organ damage in the kidneys and blood vessels.Results:
Seventeen studies that met the screening criteria were included in the meta-analysis. Compared with the SH group, in the MH group carotid intima-media thickness (IMT) and E/A ratio were significantly greater and the prevalence of left ventricular remodeling and the pulse wave velocity were
significantly lower. Other indicators in the heart, kidneys, and blood vessels were not statistically different between the two groups. IMT: P=0.01, E/A ratio: P=0.01, prevalence of left ventricular remodeling: P=0.02, pulse wave velocity: P=0.01.Conclusion: Our study has shown
that MH may have almost the same degree of target organ damage as SH, so clinicians may need to consider target organ damage.
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Affiliation(s)
- Yue Wu
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Guoyue Zhang
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Rong Hu
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Jianlin Du
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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Cai P, Zhong W, Wang Y, Wang X. Effects of white-coat, masked and sustained hypertension on coronary artery stenosis and cardiac arrhythmia. Hypertens Res 2020; 43:121-131. [PMID: 31624353 PMCID: PMC8076024 DOI: 10.1038/s41440-019-0342-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 09/18/2019] [Indexed: 11/29/2022]
Abstract
This study aimed to investigate whether hypertension phenotypes such as white-coat hypertension (WCHT), diagnosed with the addition of nighttime blood pressure (BP) criteria, are related to coronary artery stenosis (CAS) and cardiac arrhythmia. In this cross-sectional observational study, 844 participants who did not use antihypertensive, lipid-lowering, and antiplatelet drugs were selected. The subjects were divided into normotensive (NT), WCHT, masked hypertension (MHT), and sustained hypertension (SHT) groups based on the results of clinic BP measurement and ambulatory BP monitoring. Coronary angiography and ambulatory electrocardiography were performed to determine the participants' CAS and cardiac arrhythmia status. Coronary angiography revealed 556 patients with CAS and 288 participants with normal coronary arteries. The chi-squared test showed that the incidence of CAS was higher in the MHT and SHT groups than in the NT group, while no significant change was found in the WCHT group (P = 0.003, P < 0.001, P = 0.119). The logarithm of the Gensini score was used to compare the degree of CAS between the groups. Multiple linear regression analysis showed that the degree of CAS was higher in the WCHT, MHT, and SHT groups than in the NT group (P < 0.05). The incidences of frequent atrial premature beats, atrial tachycardia, and ventricular cardiac arrhythmia were significantly higher in the WCHT and SHT groups than in the NT group, while only ventricular cardiac arrhythmia changes were observed in the MHT group. This study found that hypertension phenotypes such as WCHT were closely associated with CAS and cardiac arrhythmia.
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Affiliation(s)
- Peng Cai
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Weitian Zhong
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Yan Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.
| | - Xukai Wang
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Chongqing, China.
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Abstract
White-coat and masked hypertension are important hypertension phenotypes. Out-of-office blood pressure measurement is essential for the accurate diagnosis and monitoring of these conditions. This review summarizes literature related to the detection and diagnosis, prevalence, epidemiology, prognosis, and treatment of white-coat and masked hypertension. Cardiovascular risk in white-coat hypertension appears to be dependent on the presence of coexisting risk factors, whereas patients with masked hypertension are at increased risk of target organ damage and cardiovascular events. There is an unmet need for robust data to support recommendations around the use of antihypertensive treatment for the management of white-coat and masked hypertension.
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Affiliation(s)
- Kazuomi Kario
- From the Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Tochigi, Japan (K.K.)
| | - Lutgarde Thijs
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Belgium (L.T., J.A.S.)
| | - Jan A Staessen
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Belgium (L.T., J.A.S.).,Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, The Netherlands (J.A.S.)
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7
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Paiva AMG, Gomes MICM, Campana ÉMG, Feitosa ADM, Sposito AC, Mota-Gomes MA, Nadruz W Jr, Brandão AA. Impact of hypertension phenotypes on the office and 24-h pulse wave velocity and augmentation index in individuals with or without antihypertensive medication use. Hypertens Res 2019; 42:1989-95. [PMID: 31506647 DOI: 10.1038/s41440-019-0323-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 08/22/2019] [Accepted: 08/24/2019] [Indexed: 12/18/2022]
Abstract
Data on the association of blood pressure (BP) phenotypes with office and out-of-office markers of vascular stiffness and pressure wave reflection are sparse. This study investigated office and 24-h measures of brachial BP, pulse wave velocity (PWV), and central augmentation index (AIx) across hypertension phenotypes among individuals not using BP-lowering medications [normotension (NT), white-coat hypertension (WH), masked hypertension (MH) and sustained hypertension (SH)] and those using BP-lowering medications [controlled hypertension (CH), white-coat uncontrolled hypertension (WUCH), masked uncontrolled hypertension (MUCH) and sustained uncontrolled hypertension (SUCH)]. We evaluated 454 untreated (age = 45 ± 15 years, 50% males) and 238 treated (age = 52 ± 15 years, 45% males) individuals who underwent office and 24-h brachial BP, PWV, and AIx measures using a Mobil-O-Graph PWA monitor. In the analysis adjusted for age and sex, WH had higher (p < 0.05) office PWV (7.53 ± 0.09 vs 6.89 ± 0.05), office AIx (27.9 ± 1.3 vs 23.8 ± 0.8), and daytime AIx (24.6 ± 0.7 vs 22.7 ± 0.4) compared with those of NT, while WUCH had higher (p < 0.05) office PWV (8.28 ± 0.11 vs 7.43 ± 0.08) and 24-h PWV (7.54 ± 0.09 vs 7.21 ± 0.07) than those of CH. MH had higher (p < 0.05) 24-h PWV (7.00 ± 0.09 vs 6.69 ± 0.04) and 24-h AIx (24.3 ± 0.9 vs 21.9 ± 0.4) than those of NT, whereas MUCH had higher (p < 0.05) 24-h PWV (7.64 ± 0.13 vs 7.21 ± 0.07) than that of CH. Lastly, SH or SUCH had significantly higher office and 24-h PWV and AIx than those of NT and CH, respectively. In conclusion, these results suggest that individuals with masked BP phenotypes are more predisposed to have adverse out-of-office vascular characteristics, while individuals with white-coat phenotypes have adverse office and out-of-office vascular characteristics compared with those of individuals with normal BP levels.
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Antza C, Doundoulakis I, Stabouli S, Tziomalos K, Kotsis V. Masked hypertensives: A disguised arterial stiffness population. J Clin Hypertens (Greenwich) 2019; 21:1473-1480. [DOI: 10.1111/jch.13692] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/28/2019] [Accepted: 07/08/2019] [Indexed: 01/04/2023]
Affiliation(s)
- Christina Antza
- 3rd Department of Internal Medicine Hypertension‐24h Ambulatory Blood Pressure Monitoring Center Papageorgiou Hospital Aristotle University Thessaloniki Greece
| | - Ioannis Doundoulakis
- 3rd Department of Internal Medicine Hypertension‐24h Ambulatory Blood Pressure Monitoring Center Papageorgiou Hospital Aristotle University Thessaloniki Greece
| | - Stella Stabouli
- 1st Department of Pediatrics Hippokration Hospital Aristotle University Thessaloniki Greece
| | - Konstantinos Tziomalos
- 1st Propedeutic Department of Internal Medicine Medical School AHEPA Hospital Aristotle University of Thessaloniki Thessaloniki Greece
| | - Vasilios Kotsis
- 3rd Department of Internal Medicine Hypertension‐24h Ambulatory Blood Pressure Monitoring Center Papageorgiou Hospital Aristotle University Thessaloniki Greece
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Cai P, Peng Y, Chen Y, Li L, Chu W, Wang Y, Wang X. Association of thyroid function with white coat hypertension and sustained hypertension. J Clin Hypertens (Greenwich) 2019; 21:674-683. [PMID: 30973206 DOI: 10.1111/jch.13536] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/04/2019] [Accepted: 03/19/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Peng Cai
- Department of Cardiology, Institute of Field Surgery, Daping Hospital Army Military Medical University Chongqing China
| | - Yan Peng
- Department of Cardiology, Institute of Field Surgery, Daping Hospital Army Military Medical University Chongqing China
| | - YuXi Chen
- Department of Cardiology, Institute of Field Surgery, Daping Hospital Army Military Medical University Chongqing China
| | - Li Li
- Department of Cardiology, Institute of Field Surgery, Daping Hospital Army Military Medical University Chongqing China
| | - Wei Chu
- Department of Cardiology, Institute of Field Surgery, Daping Hospital Army Military Medical University Chongqing China
| | - Yan Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education Joint International Research Laboratory of Ministry Education Zunyi Medical University Zunyi China
| | - Xukai Wang
- Department of Cardiology, Institute of Field Surgery, Daping Hospital Army Military Medical University Chongqing China
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10
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Abstract
BACKGROUND White-coat hypertension (WCH) is a debatable risk factor of cardio-cerebrovascular diseases and the current study results on the association between WCH and arterial stiffness are inconsistent. The aim was to investigate the effect of WCH on arterial stiffness using meta-analysis. METHODS Based on prespecified search strategies and inclusion criteria, Medline, Embase, Web Of Science, Cochrane Library, and BioSciences Information Service Preview databases were reviewed. A total of 20 studies involving 1538 WCH patients and 3582 normotensives (NT) were included. Literatures were screened for data extraction and quality assessment. Overall analysis and subgroup analysis were conducted in RevMan version 5.3 and Stata version 14.0 software. RESULTS Overall analysis showed that carotid-femoral pulse wave velocity (cf-PWV) was significantly higher in WCH group than in the NT group (P < .00001, 95% CI: 0.79-3.26). Subgroup analysis showed that in adults, cf-PWV was significantly higher in the WCH patients than in the NT subjects (P<.001, 95% CI: 0.46-0.87), while in juveniles, cf-PWV was comparable between the WCH group and the NT group (P = .25, 95% CI: -0.39 to 0.61). CONCLUSION This meta-analysis showed that WCH may increase arterial stiffness in adult population.
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Affiliation(s)
- Peng Cai
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Third Military Medical University, Chongqing
| | - Yan Peng
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Third Military Medical University, Chongqing
| | - Yan Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education Joint International Research Laboratory of Ministry Education, Zunyi Medical University, Zunyi, China
| | - Xukai Wang
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Third Military Medical University, Chongqing
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Abstract
Definition of white coat hypertension (WCH) traditionally relies on elevated office blood pressure (BP) during repeated visits concomitant with normal out-of-office BP values, as assessed by home and/or 24-h ambulatory BP monitoring measurements. Accumulating evidence focusing on the association of WCH with target organ damage and, more importantly, with cardiovascular events indicates that the risk conveyed by this condition is intermediate between normotension and sustained hypertension. This article will review a number of issues concerning WCH with particular emphasis on the following: (1) prevalence and clinical correlates, (2) association with target organ damage and cardiovascular events, (3) therapeutic interventions. Data will refer to the original WCH definition, based on out-of-office BP determined by 24-h ambulatory BP monitoring; at variance from home BP measurement, this approach rules out the potentially confounding effect of a clinically relevant abnormal BP phenotype such as isolated nocturnal hypertension.
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Affiliation(s)
- Cesare Cuspidi
- Department of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy.
- Istituto Auxologico Italiano, Milano, Italy.
- Istituto Auxologico Italiano, Clinical Research Unit, Meda (MB), Italy.
| | - Carla Sala
- Department of Clinical Sciences and Community Health, University of Milano and Fondazione IRCCS Policlinico di Milano, Milano, Italy
| | - Guido Grassi
- Department of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy
- Istituto di Ricerche a Carattere Scientifico Multimedica, Sesto San Giovanni, Milan, Italy
| | - Giuseppe Mancia
- Department of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy
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Tokgöz ST, Yılmaz D, Tokgöz Y, Çelik B, Bulut Y. The evaluation of arterial stiffness of essential hypertension and white coat hypertension in children: a case-control study. Cardiol Young 2018; 28:403-8. [PMID: 29223189 DOI: 10.1017/S1047951117002025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND The aim of this study was to determine and compare cardiovascular risks by assessing arterial stiffness in children with essential hypertension and white coat hypertension. METHODS Paediatric patients followed up with essential hypertension and white coat hypertension diagnoses and with no established end organ damage were involved in the study. Arterial stiffness in children included in the study was evaluated and compared by using the oscillometric device (Mobil-O-Graph) method. RESULTS A total of 62 essential hypertension (34 male, 28 female), 38 white coat hypertension (21 male, 17 female), and 60 healthy controls (33 male, 27 female) were assessed in the present study. Pulse wave velocity of the essential hypertension, white coat hypertension, and control group was, respectively, as follows: 5.3±0.6 (m/s), 5.1±0.4 (m/s), 4.3±0.4 (m/s) (p<0.001); augmentation index outcomes were, respectively, determined as follows: 21.3±6.5, 19.3±6.4, 16.0±0.3 (p<0.001). Pulse wave velocity and augmentation index values of children with essential hypertension and white coat hypertension were found to be higher compared with the control group. This level was identified as correlated with the duration of hypertension in both patient groups (p<0.01). CONCLUSION Arterial stiffness in children with essential hypertension and white coat hypertension was impaired compared with healthy children. This finding has made us think that white coat hypertension is not an innocent clinical situation. This information should be taken into consideration in the follow-up and treatment approaches of the patients.
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McMahon A, McNulty H, Hughes CF, Strain JJ, Ward M. Novel Approaches to Investigate One-Carbon Metabolism and Related B-Vitamins in Blood Pressure. Nutrients 2016; 8:E720. [PMID: 27845713 PMCID: PMC5133106 DOI: 10.3390/nu8110720] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 11/04/2016] [Accepted: 11/07/2016] [Indexed: 02/07/2023] Open
Abstract
Hypertension, a major risk factor for heart disease and stroke, is the world's leading cause of preventable, premature death. A common polymorphism (677C→T) in the gene encoding the folate metabolizing enzyme methylenetetrahydrofolate reductase (MTHFR) is associated with increased blood pressure, and there is accumulating evidence demonstrating that this phenotype can be modulated, specifically in individuals with the MTHFR 677TT genotype, by the B-vitamin riboflavin, an essential co-factor for MTHFR. The underlying mechanism that links this polymorphism, and the related gene-nutrient interaction, with hypertension is currently unknown. Previous research has shown that 5-methyltetrahydrofolate, the product of the reaction catalysed by MTHFR, appears to be a positive allosteric modulator of endothelial nitric oxide synthase (eNOS) and may thus increase the production of nitric oxide, a potent vasodilator. Blood pressure follows a circadian pattern, peaking shortly after wakening and falling during the night, a phenomenon known as 'dipping'. Any deviation from this pattern, which can only be identified using ambulatory blood pressure monitoring (ABPM), has been associated with increased cardiovascular disease (CVD) risk. This review will consider the evidence linking this polymorphism and novel gene-nutrient interaction with hypertension and the potential mechanisms that might be involved. The role of ABPM in B-vitamin research and in nutrition research generally will also be reviewed.
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Affiliation(s)
- Amy McMahon
- Northern Ireland Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK.
| | - Helene McNulty
- Northern Ireland Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK.
| | - Catherine F Hughes
- Northern Ireland Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK.
| | - J J Strain
- Northern Ireland Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK.
| | - Mary Ward
- Northern Ireland Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK.
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