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Kim JH, Thiruvengadam R. Hypertension in an ageing population: Diagnosis, mechanisms, collateral health risks, treatments, and clinical challenges. Ageing Res Rev 2024; 98:102344. [PMID: 38768716 DOI: 10.1016/j.arr.2024.102344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 05/07/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
Ageing population is considerably increasing worldwide, which is considered to reflect an improved quality of life. However, longevity in the human lifespan has increased the burden of late-life illnesses including cancer, neurodegeneration, and cardiovascular dysfunction. Of these, hypertension is the most common condition with huge health risks, with an increased prevalence among the elderly. In this review, we outline the current guidelines for defining hypertension and examine the detailed mechanisms underlying the relationship between hypertension and ageing-related outcomes, including sodium sensitivity, arterial stiffness, endothelial dysfunction, isolated systolic hypertension, white coat effect, and orthostatic hypertension. As hypertension-related collateral health risk increases among the elderly, the available management strategies are necessary to overcome the clinical treatment challenges faced among elderly population. To improve longevity and reduce adverse health effects, potential approaches producing crucial information into new era of medicine should be considered in the prevention and treatment of hypertension among elderly population. This review provides an overview of mechanisms underlying hypertension and its related collateral health risk in elderly population, along with multiple approaches and management strategies to improve the clinical challenges among elderly population.
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Affiliation(s)
- Jin Hee Kim
- Department of Integrative Bioscience & Biotechnology, Sejong University, Seoul 05006, the Republic of Korea.
| | - Rekha Thiruvengadam
- Department of Integrative Bioscience & Biotechnology, Sejong University, Seoul 05006, the Republic of Korea
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Palatini P, Kollias A, Saladini F, Asmar R, Bilo G, Kyriakoulis KG, Parati G, Stergiou GS, Grassi G, Kreutz R, Mancia G, Jordan J, Biaggioni I, de la Sierra A. Assessment and management of exaggerated blood pressure response to standing and orthostatic hypertension: consensus statement by the European Society of Hypertension Working Group on Blood Pressure Monitoring and Cardiovascular Variability. J Hypertens 2024; 42:939-947. [PMID: 38647124 DOI: 10.1097/hjh.0000000000003704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
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 20 mmHg and OHT as an ERTS with standing SBP at least 140 mmHg. 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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Affiliation(s)
- Paolo Palatini
- Studium Patavinum, Department of Medicine. University of Padova, Padua, Italy
| | - Anastasios Kollias
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Francesca Saladini
- Cardiology Unit, Cittadella Town Hospital, Padova. Department of Medicine, University of Padova, Padova, Italy
| | - Roland Asmar
- Foundation-Medical Research Institutes, Geneva, Switzerland
| | - Grzegorz Bilo
- Department of Cardiology, Istituto Auxologico Italiano, IRCCS
- Department of Medicine and Surgery, University of Milano-Bicocca
| | - Konstantinos G Kyriakoulis
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Gianfranco Parati
- Department of Cardiology, Istituto Auxologico Italiano, IRCCS
- Department of Medicine and Surgery, University of Milano-Bicocca
| | - George S Stergiou
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece
| | - Guido Grassi
- Clinica Medica, Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Monza, Italy
| | | | | | - Jens Jordan
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Linder Hoehe
- Medical Faculty, University of Cologne, Cologne, Germany
| | - Italo Biaggioni
- Autonomic Dysfunction Center and Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Alejandro de la Sierra
- Hypertension Unit, Department of Internal Medicine, Hospital Mútua Terrassa, University of Barcelona, Barcelona, Spain
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Palatini P. Exaggerated blood pressure response to standing: a still underinvestigated issue. J Hypertens 2024; 42:749-750. [PMID: 38441188 DOI: 10.1097/hjh.0000000000003665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Affiliation(s)
- Paolo Palatini
- Studium Patavinum, Department of Medicine, University of Padova, Padova, Italy
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Dorogovtsev VN, Yankevich DS, Gaydashev AE, Martyushev-Poklad AV, Podolskaya JA, Borisov IV, Grechko AV. Preclinical Orthostatic Abnormalities May Predict Early Increase in Vascular Stiffness in Different Age Groups: A Pilot Study. Diagnostics (Basel) 2023; 13:3243. [PMID: 37892064 PMCID: PMC10606479 DOI: 10.3390/diagnostics13203243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Clinical orthostatic hypotension (OH) and hypertension (OHT) are risk factors for arterial hypertension (AH) and cardiovascular diseases (CVD) and are associated with increased vascular stiffness. Preclinical OH and OHT are poorly understood. The main objective was to investigate preclinical orthostatic abnormalities and their association with increased vascular stiffness in different age groups of adults. A specially designed head-up tilt test standardized for hydrostatic column height was used to detect them. Three age groups of clinically healthy subjects were examined. In the group of young adults up to 30 years old, a significant predominance of orthostatic normotension (ONT) and an insignificant number of subjects with preclinical OH and OHT were found. In the age group over 45 years, compared to the group under 30 years, there was a twofold decrease in the proportion of individuals with ONT and a significant increase with preclinical OH and OHT. In all age groups, there was a significant orthostatic increase in vascular stiffness (as measured by the brachial-ankle pulse wave velocity (baPWV), which was recovered to the baseline level when returning to the supine position. Overall, subjects with preclinical OH and OHT had significantly higher baPWV values compared to those with ONT (p = 0.001 and p = 0.002, respectively), with all subjects having vascular stiffness values within normal age-related values.
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Affiliation(s)
- Victor N. Dorogovtsev
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (D.S.Y.); (A.V.M.-P.); (J.A.P.); (A.V.G.)
| | - Dmitry S. Yankevich
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (D.S.Y.); (A.V.M.-P.); (J.A.P.); (A.V.G.)
| | - Andrey E. Gaydashev
- Problem Scientific Research Laboratory, Smolensk State Medical University, 214019 Smolensk, Russia;
| | - Andrey V. Martyushev-Poklad
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (D.S.Y.); (A.V.M.-P.); (J.A.P.); (A.V.G.)
| | - Julia A. Podolskaya
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (D.S.Y.); (A.V.M.-P.); (J.A.P.); (A.V.G.)
| | - Ilya V. Borisov
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (D.S.Y.); (A.V.M.-P.); (J.A.P.); (A.V.G.)
| | - Andrey V. Grechko
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (D.S.Y.); (A.V.M.-P.); (J.A.P.); (A.V.G.)
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Abstract
The prognostic role and the clinical significance of orthostatic hypertension (OHT) remained undefined for long because data were sparse and often inconsistent. In recent years, evidence has been accumulating that OHT is associated with an increased risk of masked and sustained hypertension, hypertension-mediated organ damage, cardiovascular disease, and mortality. Most evidence came from studies in which OHT was defined using systolic blood pressure (BP) whereas the clinical relevance of diastolic OHT is still unclear. Recently, the American Autonomic Society and the Japanese Society of Hypertension defined OHT as an orthostatic systolic BP increase ≥20 mm Hg associated with a systolic BP of at least 140 mm Hg while standing. However, also smaller orthostatic BP increases have shown clinical relevance especially in people ≤45 years of age. A possible limitation of the BP response to standing is poor reproducibility. OHT concordance is better when the between-assessment interval is shorter, when OHT is evaluated using a larger number of BP readings, and if home BP measurement is used. The pathogenetic mechanisms leading to OHT are still controversial and may vary according to age. Excessive neurohumoral activation seems to be the main determinant in younger adults whereas vascular stiffness plays a more important role in older individuals. Conditions associated with higher activity of the sympathetic nervous system and/or baroreflex dysregulation, such as diabetes, essential hypertension, and aging have been found to be often associated with OHT. Measurement of orthostatic BP should be included in routine clinical practice especially in people with high-normal BP.
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Affiliation(s)
- Paolo Palatini
- Studium Patavinum, Department of Medicine, University of Padova, Italy
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Giacona JM, Kositanurit W, Wang J, Petric UB, Khan G, Pittman D, Williamson JW, Smith SA, Vongpatanasin W. Utility of standing office blood pressure in detecting hypertension in healthy adults. Sci Rep 2023; 13:15572. [PMID: 37730821 PMCID: PMC10511521 DOI: 10.1038/s41598-023-42297-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 09/07/2023] [Indexed: 09/22/2023] Open
Abstract
Current guidelines recommend office blood pressures (BP) be taken in a seated position when screening for hypertension (HTN). Seated BP is known to have limited accuracy in detecting high BP, while the utility of standing BP in diagnosing HTN is unknown. We conducted a cross-sectional study to determine the incremental value of standing BP in diagnosing HTN. Seated, standing, and 24-h ambulatory BPs (ABPM) were obtained in adults without known cardiovascular disease, HTN, or BP medication use. Presence of HTN was defined by the 2017 ACC/AHA and the 2023 ESH HTN guidelines based on ABPM. Area under the receiver-operating-characteristic curve (AUROC) was used to evaluate the diagnostic accuracy of seated and standing BP. Sensitivity and specificity of standing BP was determined using cut-offs derived from Youden's Index, while sensitivity and specificity of seated BP was determined using the cut-off of 130/80 mmHg and by 140/90 mmHg. Among 125 participants (mean age 49 ± 17 years; 62% female; 24% Black), 33.6% of them had HTN. Sensitivity and specificity of seated systolic BP (SBP) was 43% and 92%, respectively. Cut-offs selected by Youden's index for standing SBP/diastolic BP (DBP) were 124/81 mmHg according to the 2017 ACC/AHA HTN guidelines, and 123.5/83.5 mmHg according to the 2023 ESH HTN guidelines. Sensitivity and specificity of standing SBP was 71% and 67%, respectively. The AUROC of standing SBP (0.81 [0.71-0.92]) was significantly higher than seated SBP (0.70 [0.49-0.91]), when HTN was defined as average 24-h SBP ≥ 125 mmHg. Moreover, the addition of standing to seated SBP (0.80 [0.68-0.92]) improved HTN detection when compared to seated SBP. These patterns were consistent for both the 2017 ACC/AHA and the 2023 ESH definitions for HTN. In summary, standing BP, alone or in combination with seated BP, outperformed seated BP alone in diagnosing HTN in adults.
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Affiliation(s)
- John M Giacona
- Hypertension Section, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, USA
- Department of Applied Clinical Research, School of Health Professions, University of Texas Southwestern Medical Center, Dallas, USA
| | - Weerapat Kositanurit
- Hypertension Section, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, USA
- Department of Physiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Jijia Wang
- Department of Applied Clinical Research, School of Health Professions, University of Texas Southwestern Medical Center, Dallas, USA
| | - Ursa B Petric
- Hypertension Section, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, USA
| | - Ghazi Khan
- Hypertension Section, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, USA
| | - Danielle Pittman
- Hypertension Section, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, USA
| | - Jon W Williamson
- Department of Applied Clinical Research, School of Health Professions, University of Texas Southwestern Medical Center, Dallas, USA
| | - Scott A Smith
- Department of Applied Clinical Research, School of Health Professions, University of Texas Southwestern Medical Center, Dallas, USA
| | - Wanpen Vongpatanasin
- Hypertension Section, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, USA.
- Cardiology Division, Department of Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., H4.130, Dallas, TX, 75390, USA.
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Palatini P, Mos L, Rattazzi M, Ermolao A, Battista F, Vriz O, Canevari M, Saladini F. Exaggerated blood pressure response to standing in young-to-middle-age subjects: prevalence and factors involved. Clin Auton Res 2023; 33:391-399. [PMID: 37119425 PMCID: PMC10439022 DOI: 10.1007/s10286-023-00942-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/04/2023] [Indexed: 05/01/2023]
Abstract
PURPOSE To investigate the prevalence of orthostatic hypertension and the association of the blood pressure (BP) level, supine BP decline, and white-coat effect with the orthostatic pressor response. METHODS We studied 1275 young-to-middle-age individuals with stage-1 hypertension. Orthostatic response was assessed three times over a 3 month period. The white-coat effect was assessed at baseline and after 3 months, and was calculated as the difference between office and average 24 h BP. In 660 participants, urinary epinephrine and norepinephrine were also measured. RESULTS An orthostatic systolic BP increase ≥ 20 mmHg was observed in 0.6-1.2% of the subjects during the three visits. Using the 20 mmHg cut-off, the prevalence of orthostatic hypertension was 0.6%. An orthostatic BP increase of ≥ 5 mmHg was found in 14.4% of participants. At baseline, the orthostatic response to standing showed an independent negative association with the supine BP level (p < 0.001), the supine BP change from the first to third measurement (p < 0.001), and the white-coat effect (p < 0.001). Similar results were obtained in the 1080 participants assessed at the third visit. Urinary epinephrine showed higher values in the top BP response decile (systolic BP increase ≥ 6 mmHg, p = 0.002 versus rest of the group). CONCLUSION An orthostatic systolic BP reaction ≥ 20 mmHg is rare in young adults. However, even lower BP increases may be clinically relevant. The BP level, the supine BP decline over repeated measurement, and the white-coat effect can influence the estimate of the BP response to standing and should be considered in clinical and pathogenetic studies.
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Affiliation(s)
- Paolo Palatini
- Studium Patavinum and Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padua, Italy.
| | - Lucio Mos
- San Antonio Hospital, San Daniele del Friuli, Italy
| | - Marcello Rattazzi
- Studium Patavinum and Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padua, Italy
| | - Andrea Ermolao
- Studium Patavinum and Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padua, Italy
| | - Francesca Battista
- Studium Patavinum and Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padua, Italy
| | - Olga Vriz
- San Antonio Hospital, San Daniele del Friuli, Italy
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Värri E, Suojanen L, Koskela JK, Choudhary MK, Tikkakoski A, Kähönen M, Nevalainen PI, Mustonen J, Pörsti I. Ambulatory daytime blood pressure versus tonometric blood pressure measurements in the laboratory: effect of posture. Blood Press Monit 2023; 28:199-207. [PMID: 37318783 PMCID: PMC10309093 DOI: 10.1097/mbp.0000000000000651] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/23/2023] [Indexed: 06/16/2023]
Abstract
OBJECTIVE To compare blood pressure (BP) in tonometric radial artery recordings during passive head-up tilt with ambulatory recordings and evaluate possible laboratory cutoff values for hypertension. METHODS Laboratory BP and ambulatory BP were recorded in normotensive (n = 69), unmedicated hypertensive (n = 190), and medicated hypertensive (n = 151) subjects. RESULTS Mean age was 50.2 years, BMI 27.7 kg/m 2 , ambulatory daytime BP 139/87 mmHg, and 276 were male (65%). As supine-to-upright changes in SBP ranged from -52 to +30 mmHg, and in DBP from -21 to +32 mmHg, the mean values of BP supine and upright measurements were compared with ambulatory BP. The mean(supine+upright) systolic laboratory BP was corresponding to ambulatory level (difference +1 mmHg), while mean(supine+upright) DBP was 4 mmHg lower ( P < 0.05) than ambulatory value. Correlograms indicated that laboratory 136/82 mmHg corresponded to ambulatory 135/85 mmHg. When compared with ambulatory 135/85 mmHg, the sensitivity and specificity of laboratory 136/82 mmHg to define hypertension were 71.5% and 77.3% for SBP, and 71.7% and 72.8%, for DBP, respectively. The laboratory cutoff 136/82 mmHg classified 311/410 subjects similarly to ambulatory BP as normotensive or hypertensive, 68 were hypertensive only in ambulatory, while 31 were hypertensive only in laboratory measurements. CONCLUSION BP responses to upright posture were variable. When compared with ambulatory BP, mean(supine+upright) laboratory cutoff 136/82 mmHg classified 76% of subjects similarly as normotensive or hypertensive. In the remaining 24% the discordant results may be attributed to white-coat or masked hypertension, or higher physical activity during out-of-office recordings.
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Affiliation(s)
- Emmi Värri
- Faculty of Medicine and Health Technology, Tampere University, Departments of
| | - Lauri Suojanen
- Faculty of Medicine and Health Technology, Tampere University, Departments of
- Internal Medicine
| | - Jenni K. Koskela
- Faculty of Medicine and Health Technology, Tampere University, Departments of
- Internal Medicine
| | - Manoj K. Choudhary
- Faculty of Medicine and Health Technology, Tampere University, Departments of
| | - Antti Tikkakoski
- Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, Departments of
- Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | | | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Departments of
- Internal Medicine
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Departments of
- Internal Medicine
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Yoo SW, Oh YS, Ryu DW, Ha S, Kim Y, Yoo JY, Kim JS. A 3-year natural history of orthostatic blood pressure dysregulation in early Parkinson's disease. NPJ Parkinsons Dis 2023; 9:96. [PMID: 37344481 DOI: 10.1038/s41531-023-00546-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 06/09/2023] [Indexed: 06/23/2023] Open
Abstract
In Parkinson's disease (PD), cardiovascular dysautonomia accumulates with disease progression, but studies are lacking on the natural history behind each subtype except orthostatic hypotension. This study investigated the early natural history of orthostatic blood pressure (BP) subtypes in PD. Two hundred sixty-seven early PD patients were included. Their cardiovascular functions were assessed by head-up tilt-test and 123I-metaiodobenzylguanidine scintigraphy. All patients were classified as having supine hypertension (SH), orthostatic hypertension (OHT), delayed orthostatic hypotension (dOH), or orthostatic hypotension (OH) according to consensus criteria. The patients were assigned to one of three groups: extreme BP dysregulation (BPextreme), mild BP dysregulation (BPmild), and no BP dysregulation (BPnone) according to their orthostatic BP subtypes. The autonomic functions of 237 patients were re-assessed after approximately 3 years. Among initially enrolled subjects, 61.8% of the patients showed orthostatic BP dysregulation: 29.6% in the BPextreme group and 32.2% in the BPmild group. At follow-up, the BPextreme group increased in number, while the BPmild group diminished. Two-thirds of the initial BPextreme patients maintained their initial subtype at follow-up. In comparison, 40.7% of the initial BPmild patients progressed to the BPextreme group, and 32.4% and 14.7% of the initial BPnone group progressed to BPextreme and BPmild groups, respectively. Cardiac denervation was most severe in the BPextreme group, and a linear gradient of impairment was observed across the subtypes. In conclusion, various forms of positional BP dysregulation were observed during the early disease stage. SH and OH increased with disease progression, while OHT and dOH decreased, converting primarily to SH and/or OH.
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Affiliation(s)
- Sang-Won Yoo
- Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoon-Sang Oh
- Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong-Woo Ryu
- Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seunggyun Ha
- Division of Nuclear Medicine, Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yuna Kim
- Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji-Yeon Yoo
- Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Joong-Seok Kim
- Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Barzkar F, Myint PK, Kwok CS, Metcalf AK, Potter JF, Baradaran HR. Prevalence of orthostatic hypertension and its association with cerebrovascular diagnoses in patients with suspected TIA and minor stroke. BMC Cardiovasc Disord 2022; 22:161. [PMID: 35397488 PMCID: PMC8994299 DOI: 10.1186/s12872-022-02600-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 03/30/2022] [Indexed: 11/10/2022] Open
Abstract
Purpose We aimed to compare the rate of stroke, transient ischemic attack, and cerebrovascular disease diagnoses across groups of patients based on their orthostatic blood pressure response in a transients ischemic attack clinic setting. Materials and Methods We retrospectively analysed prospectively collected data from 3201 patients referred to a transient ischemic attack (TIA)/minor stroke outpatients clinic. Trained nurses measured supine and standing blood pressure using an automated blood pressure device and the patients were categorized based on their orthostatic blood pressure change into four groups: no orthostatic blood pressure rise, systolic orthostatic hypertension, diastolic orthostatic hypertension, and combined orthostatic hypertension. Then, four stroke physicians, who were unaware of patients' orthostatic BP response, assessed the patients and made diagnoses based on clinical and imaging data. We compared the rate of stroke, TIA, and cerebrovascular disease (either stroke or TIA) diagnoses across the study groups using Pearson's χ2 test. The effect of confounders was adjusted using a multivariate logistic regression analysis. Results Cerebrovascular disease was significantly less common in patients with combined systolic and diastolic orthostatic hypertension compared to the "no rise" group [OR = 0.56 (95% CI 0.35–0.89]. The odds were even lower among the subgroups of patients with obesity [OR = 0.31 (0.12–0.80)], without history of smoking [OR 0.34 (0.15–0.80)], and without hypertension [OR = 0.42 (95% CI 0.19–0.92)]. We found no significant relationship between orthostatic blood pressure rise with the diagnosis of stroke. However, the odds of TIA were significantly lower in patients with diastolic [OR 0.82 (0.68–0.98)] and combined types of orthostatic hypertension [OR = 0.54 (0.32–0.93)]; especially in patients younger than 65 years [OR = 0.17 (0.04–0.73)] without a history of hypertension [OR = 0.34 (0.13–0.91)], and patients who did not take antihypertensive therapy [OR = 0.35 (0.14–0.86)]. Conclusion Our data suggest that orthostatic hypertension may be a protective factor for TIA among younger and normotensive patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-022-02600-1.
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Oyake K, Murayama J, Tateishi T, Mochida A, Matsumoto M, Tsujikawa M, Kondo K, Otaka Y, Momose K. Comparison of the sit-up test and head-up tilt test for assessing blood pressure and hemodynamic responses in healthy young individuals. Blood Press Monit 2022; 27:79-86. [PMID: 34629377 PMCID: PMC8893123 DOI: 10.1097/mbp.0000000000000570] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/14/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The sit-up test is used to assess orthostatic hypotension, without the use of a tilt table, in populations who are unable to stand. The primary objective of this study was to determine the differences in blood pressure and hemodynamic responses between the sit-up and head-up tilt tests. The secondary objective was to determine the hemodynamic responses related to changes in blood pressure during each test. METHODS Nineteen healthy volunteers (nine males, aged 24.3 ± 2.4 years) underwent the sit-up and head-up tilt tests. Systolic and diastolic blood pressure, heart rate, stroke volume, cardiac output, and total peripheral resistance were measured. RESULTS The increase in systolic blood pressure (15 ± 9 vs. 8 ± 8 mmHg) was greater, while the increase in heart rate (8 ± 5 vs. 12 ± 8 bpm) and reduction in stroke volume (-17 ± 10 vs. -21 ± 10 ml) were smaller during the sit-up test than during the head-up tilt test (P < 0.05). Additionally, the increases in blood pressure variables were significantly associated with the increase in total peripheral resistance (P < 0.05), but not with changes in other hemodynamic variables in both tests. CONCLUSION Although the magnitudes of changes in systolic blood pressure, heart rate, and stroke volume differed between the tests, the hemodynamic variable related to changes in blood pressure was the same for both tests. These results may contribute to the clinical application of the sit-up test for identifying the presence and hemodynamic mechanisms of orthostatic hypotension.
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Affiliation(s)
- Kazuaki Oyake
- Department of Physical Therapy, School of Health Sciences, Shinshu University, Nagano
- Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba
| | - Jun Murayama
- Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba
| | - Takaki Tateishi
- Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba
| | - Ayumi Mochida
- Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba
| | - Mao Matsumoto
- Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba
| | - Masahiro Tsujikawa
- Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba
| | - Kunitsugu Kondo
- Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba
| | - Yohei Otaka
- Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba
- Department of Rehabilitation Medicine I, School of Medicine, Fujita Health University, Aichi, Japan
| | - Kimito Momose
- Department of Physical Therapy, School of Health Sciences, Shinshu University, Nagano
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12
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Shrout TA, Pan S, Mitchell GF, Vasan RS, Xanthakis V. Association of orthostatic blood pressure response with incident heart failure: The Framingham Heart Study. PLoS One 2022; 17:e0267057. [PMID: 35452474 PMCID: PMC9032405 DOI: 10.1371/journal.pone.0267057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/31/2022] [Indexed: 11/19/2022] Open
Abstract
IMPORTANCE Orthostatic hypotension (OH) and hypertension (OHT) are aberrant blood pressure (BP) regulation conditions associated with higher cardiovascular disease risk. The relations of OH and OHT with heart failure (HF) risk in the community are unclear and there remains a paucity of data on the relations with HF subtypes [HF with reduced ejection fraction (HFrEF) and HF with preserved ejection fraction (HFpEF)]. OBJECTIVE Relate OH and OHT with HF risk and its subtypes. DESIGN Prospective observational cohort. SETTING Community-based individuals in the Framingham Heart Study Original Cohort. PARTICIPANTS 1,914 participants (mean age 72 years; 1159 women) attending examination cycle 17 (1981-1984) followed until December 31, 2017 for incident HF or death. EXPOSURES OH or OHT, defined as a decrease or increase, respectively, of ≥20/10 mmHg in systolic/diastolic BP upon standing from supine position. OUTCOMES AND MEASURES At baseline, 1,241 participants had a normal BP response (749 women), 274 had OH (181 women), and 399 had OHT (229 women). Using Cox proportional hazards regression models, we related OH and OHT to risk of HF, HFrEF, and HFpEF compared to the absence of OH and OHT (reference), adjusting for age, sex, body mass index, systolic and diastolic BP, hypertension treatment, smoking, diabetes, and total cholesterol/high-density lipoprotein. RESULTS On follow-up (median 13 years) we observed 492 HF events (292 in women; 134 HFrEF, 116 HFpEF, 242 HF indeterminate EF). Compared to the referent, participants with OH [n = 84/274 (31%) HF events] had a higher HF risk (Hazards Ratio [HR] 1.47, 95% CI 1.13-1.91). Moreover, OH was associated with a higher HFrEF risk (HR 2.21, 95% CI 1.34-3.67). OHT was not associated with HF risk. CONCLUSIONS AND RELEVANCE Orthostatic BP response may serve as an early marker of HF risk. Findings suggest shared pathophysiology of BP regulation and HF, including HFrEF.
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Affiliation(s)
- Tara A. Shrout
- Department of Internal Medicine, Residency Program, Boston Medical Center, Boston, MA, United States of America
- Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA, United States of America
| | - Stephanie Pan
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, United States of America
| | - Gary F. Mitchell
- Cardiovascular Engineering, Norwood, MA, United States of America
| | - Ramachandran S. Vasan
- Section of Preventive Medicine and Epidemiology, Boston University School of Medicine, Boston, MA, United States of America
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States of America
- Boston University Center for Computing and Data Sciences, Boston, MA, United States of America
- Framingham Heart Study, Framingham, MA, United States of America
| | - Vanessa Xanthakis
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, United States of America
- Section of Preventive Medicine and Epidemiology, Boston University School of Medicine, Boston, MA, United States of America
- Framingham Heart Study, Framingham, MA, United States of America
- * E-mail:
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13
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Bhanu C, Nimmons D, Petersen I, Orlu M, Davis D, Hussain H, Magammanage S, Walters K. Drug-induced orthostatic hypotension: A systematic review and meta-analysis of randomised controlled trials. PLoS Med 2021; 18:e1003821. [PMID: 34752479 PMCID: PMC8577726 DOI: 10.1371/journal.pmed.1003821] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 09/22/2021] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Drug-induced orthostatic hypotension (OH) is common, and its resulting cerebral hypoperfusion is linked to adverse outcomes including falls, strokes, cognitive impairment, and increased mortality. The extent to which specific medications are associated with OH remains unclear. METHODS AND FINDINGS We conducted a systematic review and meta-analysis to evaluate the extent to which specific drug groups are associated with OH. EMBASE, MEDLINE, and Web of Science databases were searched from inception through 23 November 2020. Placebo-controlled randomised controlled trials (RCTs) on any drug reporting on OH as an adverse effect in adults (≥18 years) were eligible. Three authors extracted data on the drug, OH, dose, participant characteristics, and study setting. The revised Cochrane risk-of-bias tool for randomised trials (RoB 2) was used to appraise evidence. Summary odds ratios (ORs) were estimated for OH using fixed effects Mantel-Haenszel statistics. We conducted subgroup analysis on validity of OH measurement, drug dose, risk of bias, age, and comorbidity. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) tool was used to summarise the certainty of evidence. Of 36,940 citations, 69 eligible RCTs were included in the meta-analysis comprising 27,079 participants. Compared with placebo, beta-blockers and tricyclic antidepressants were associated with increased odds of OH (OR 7.76 [95% CI 2.51, 24.03]; OR 6.30 [95% CI 2.86, 13.91]). Alpha-blockers, antipsychotics, and SGLT-2 inhibitors were associated with up to 2-fold increased odds of OH, compared to placebo. There was no statistically significant difference in odds of OH with vasodilators (CCBs, ACE inhibitors/ARBs, SSRIs), compared to placebo. Limitations of this study are as follows: data limited to placebo-controlled studies, (excluding head-to-head trials), many RCTs excluded older participants; therefore results may be amplified in older patients in the clinical setting. The study protocol is publicly available on PROSPERO (CRD42020168697). CONCLUSIONS Medications prescribed for common conditions (including depression, diabetes, and lower urinary tract symptoms) were associated with significantly increased odds of OH. Drugs causing sympathetic inhibition were associated with significantly increased odds of OH, while most vasodilators were associated with small nonsignificant differences in odds of OH, compared to placebo. Drugs targeting multiple parts of the orthostatic blood pressure (BP) reflex pathway (e.g. sympathetic inhibition, vasodilation, cardio-inhibitory effects) may carry cumulative risk, suggesting that individuals with polypharmacy could benefit from postural BP monitoring.
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Affiliation(s)
- Cini Bhanu
- Research Department of Primary Care and Population Health, University College London, United Kingdom
- * E-mail:
| | - Danielle Nimmons
- Research Department of Primary Care and Population Health, University College London, United Kingdom
| | - Irene Petersen
- Research Department of Primary Care and Population Health, University College London, United Kingdom
| | - Mine Orlu
- UCL School of Pharmacy, University College London, United Kingdom
| | - Daniel Davis
- MRC Unit for Lifelong Health & Ageing, University College London, United Kingdom
| | - Hajra Hussain
- UCL School of Pharmacy, University College London, United Kingdom
| | | | - Kate Walters
- Research Department of Primary Care and Population Health, University College London, United Kingdom
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14
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Orthostatic hypertension and adverse clinical outcomes in adults and older people. J Geriatr Cardiol 2021; 18:779-782. [PMID: 34659384 PMCID: PMC8501383 DOI: 10.11909/j.issn.1671-5411.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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15
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Individual changes of central blood pressure in response to upright posture: different hemodynamic phenotypes. J Hypertens 2021; 39:2403-2412. [PMID: 34269331 DOI: 10.1097/hjh.0000000000002965] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Most studies about upright regulation of blood pressure have focused on orthostatic hypotension despite the diverse hemodynamic changes induced by orthostatic challenge. We investigated the effect of passive head-up tilt on aortic blood pressure. METHODS Noninvasive peripheral and central hemodynamics in 613 volunteers without cardiovascular morbidities or medications were examined using pulse wave analysis, whole-body impedance cardiography and heart rate variability analysis. RESULTS In all participants, mean aortic SBP decreased by -4 (-5 to -3) mmHg [mean (95% confidence intervals)] and DBP increased by 6 (5--6) mmHg in response to upright posture. When divided into tertiles according to the supine-to-upright change in aortic SBP, two tertiles presented with a decrease [-15 (-14 to -16) and -4 (-3 to -4) mmHg, respectively] whereas one tertile presented with an increase [+7 (7-- 8) mmHg] in aortic SBP. There were no major differences in demographic characteristics between the tertiles. In regression analysis, the strongest explanatory factors for upright changes in aortic SBP were the supine values of, and upright changes in systemic vascular resistance and cardiac output, and supine aortic SBP. CONCLUSION In participants without cardiovascular disease, the changes in central SBP during orthostatic challenge are not uniform. One-third presented with higher upright than supine aortic SBP with underlying differences in the regulation of systemic vascular resistance and cardiac output. These findings emphasize that resting blood pressure measurements give only limited information about the blood pressure status.
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16
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Increased pulse wave velocity in patients with an orthostatic blood pressure rise independent of other cardiovascular risk factors. J Hypertens 2021; 39:1352-1360. [PMID: 33470734 DOI: 10.1097/hjh.0000000000002787] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Positional changes in blood pressure (BP) have been shown to have effects on long-term outcomes. Although a BP drop with upright posture is frequently observed, an orthostatic rise in BP can also occur. Here, we aimed to investigate whether the phenotype of orthostatic hypertension is associated with more pronounced vascular hypertension-mediated organ damage (HMOD) and whether this is associated with other cardiovascular risk factors. METHODS In a cohort of 200 patients referred to our tertiary hypertension clinic, we prospectively assessed unattended seated automated office BP and the response to 1 min of upright posture. The difference in BP after standing up was calculated and pulse wave velocity (PWV) was assessed as a marker of vascular HMOD. Routine clinical cardiovascular risk markers were also assessed. Regression models were used to assess the association between orthostatic BP changes and pulse wave velocity. RESULTS Baseline characteristics and clinic cardiovascular risk factors were similar between orthostatic BP response groups. A U-shaped association was evident between PWV and orthostatic BP changes with elevated PWV in patients with either a fall or a rise in BP in response to upright posture. The regression models remained significant after adjusting for other cardiovascular risk factors, including 24 h ambulatory BP. CONCLUSION Both an orthostatic BP drop and rise were associated with elevated PWV. Although standing BP is commonly measured in elderly hypertensive patients to exclude significant orthostatic hypotension, this simple measurement may provide an additional independent risk factor for vascular HMOD at any age.
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17
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Saxena M, Schmieder RE, Kirtane AJ, Mahfoud F, Daemen J, Basile J, Lurz P, Gosse P, Sanghvi K, Fisher NDL, Rump LC, Pathak A, Blankestijn PJ, Mathur A, Wang Y, Weber MA, Sharp ASP, Bloch MJ, Barman NC, Claude L, Song Y, Azizi M, Lobo MD. Predictors of blood pressure response to ultrasound renal denervation in the RADIANCE-HTN SOLO study. J Hum Hypertens 2021; 36:629-639. [PMID: 34031548 PMCID: PMC9287166 DOI: 10.1038/s41371-021-00547-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/09/2021] [Accepted: 04/23/2021] [Indexed: 02/03/2023]
Abstract
The blood pressure (BP) lowering response to renal denervation (RDN) remains variable with about one-third of patients not responding to ultrasound or radiofrequency RDN. Identification of predictors of the BP response to RDN is needed to optimize patient selection for this therapy. This is a post-hoc analysis of the RADIANCE-HTN SOLO study. BP response to RDN was measured by the change in daytime ambulatory systolic blood pressure (dASBP) at 2 months post procedure. Univariate regression was used initially to assess potential predictors of outcome followed by multivariate regression analysis. In the univariate analysis, predictors of response to RDN were higher baseline daytime ambulatory diastolic blood pressure (dADBP), the use of antihypertensive medications at screening, and presence of orthostatic hypertension (OHTN) whilst the presence of untreated accessory arteries was a negative predictor of response. Multivariate analysis determined that dADBP and use of antihypertensive medications were predictors of response to RDN with a trend for OHTN to predict response. Obese females also appeared to be better responders to RDN in an interaction model. RDN is more effective in patients with elevated baseline dADBP and those with OHTN, suggesting increased peripheral vascular resistance secondary to heightened sympathetic tone. These assessments are easy to perform in clinical setting and may help in phenotyping patients who will respond better to RDN.
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Affiliation(s)
- Manish Saxena
- Barts NIHR Biomedical Research Centre, William Harvey Research Institute, Queen Mary University of London, London, UK.
| | - Roland E Schmieder
- Nephrology and Hypertension, University Hospital Erlangen, Friedrich Alexander University, Erlangen, Germany
| | - Ajay J Kirtane
- Columbia University Medical Center/New York-Presbyterian Hospital and the Cardiovascular Research Foundation, New York, NY, USA
| | - Felix Mahfoud
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA.,Klinik für Innere Medizin III, Saarland University Hospital, Homburg/Saar, Germany
| | - Joost Daemen
- Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, NL, The Netherlands
| | - Jan Basile
- Seinsheimer Cardiovascular Health Program, Medical University of South Carolina, Ralph H Johnson VA Medical Center, Charleston, SC, USA
| | - Philipp Lurz
- Heart Center Leipzig, University of Leipzig, Leipzig, Germany
| | | | | | | | - Lars C Rump
- University Clinic Dusseldorf, Dusseldorf, Germany
| | - Atul Pathak
- Department of Cardiovascular Medicine, Princess Grace Hospital, Monaco, Monaco
| | | | - Anthony Mathur
- Barts NIHR Biomedical Research Centre, William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Yale Wang
- Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, MN, USA
| | - Michael A Weber
- Division of Cardiovascular Medicine, State University of New York, Downstate Medical Center, New York, NY, USA
| | - Andrew S P Sharp
- University Hospital of Wales, Cardiff, UK.,University of Exeter, Exeter, UK
| | - Michael J Bloch
- Department of Medicine, University of Nevada School of Medicine, Vascular Care, Renown Institute of Heart and Vascular Health, Reno, NV, USA
| | | | | | - Yang Song
- Baim Institute for Clinical Research, Boston, MA, USA
| | - Michel Azizi
- Université de Paris, Paris, France.,Hypertension Department and DMU CARTE, AP-HP, Hôpital Européen Georges-Pompidou, Paris, France.,INSERM, CIC1418, Paris, France
| | - Melvin D Lobo
- Barts NIHR Biomedical Research Centre, William Harvey Research Institute, Queen Mary University of London, London, UK
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18
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Migisha R, Agaba DC, Katamba G, Manne-Goehler J, Muyingo A, Siedner MJ. Postural changes in blood pressure among patients with diabetes attending a referral hospital in southwestern Uganda: a cross-sectional study. BMC Cardiovasc Disord 2021; 21:213. [PMID: 33906603 PMCID: PMC8077796 DOI: 10.1186/s12872-021-02022-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 04/19/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Orthostatic hypotension (OH) and orthostatic hypertension (OHT) are often unrecognized in clinical care for diabetic individuals, yet they are associated with increased risk for adverse cardiovascular outcomes. We aimed to determine the prevalence of the abnormal orthostatic blood pressure (BP) responses, and associated factors among diabetic individuals in ambulatory care for diabetes in southwestern Uganda. METHODS We conducted a cross-sectional study among diabetic individuals aged 18-65 years at Mbarara Regional Referral Hospital, southwestern Uganda from November 2018 to April 2019. We obtained demographic and clinical data including a detailed medical history, and glycemic profile. BP measurements were taken in supine position and within 3 min of standing. We defined OH in participants with either ≥ 20 mmHg drop in systolic BP (SBP) or ≥ 10 mmHg drop in diastolic BP (DBP) after assuming an upright position. OHT was defined in participants with either a ≥ 20 mmHg rise in SBP, or ≥ 10 mmHg rise in DBP after assuming an upright position. Multivariate logistic regression was used to identify factors associated with OH and OHT. RESULTS We enrolled 299 participants, with a mean age of 50 years (SD ± 9.8), and mean HbA1c of 9.7% (SD ± 2.6); 70% were female. Of the 299 participants, 52 (17.4%; 95% CI 13.3-22.2%) met the definition of OH and 43 (14.4%; 95% CI 10.6-18.9%) were classified as having OHT. In multivariable models, factors associated with diabetic OH were older age (OR = 2.40 for 51-65 years vs 18-50 years, 95% CI 1.02-5.67, P = 0.046), diabetic retinopathy (OR = 2.51; 95% CI 1.14-5.53, P = 0.022), higher resting SBP ≥ 140 mmHg (OR = 3.14; 95% CI 1.31-8.7.56, P = 0.011), and history of palpitations (OR = 2.31; 95% CI 1.08-4.92, P = 0.031). Self-report of palpitations (OR = 3.14; 95% CI 1.42-6.95, P = 0.005), and higher resting SBP ≥ 140 mmHg (OR = 22.01; 95% CI 1.10-4.42, P = 0.043) were associated with OHT. CONCLUSION OH and OHT are common among diabetic individuals in ambulatory diabetes care in southwestern Uganda. Orthostatic BP measurements should be considered as part of routine physical examination to improve detection of OH and OHT, especially among older diabetics with complications of the disease. Future studies to assess the health and prognostic implications of OH and OHT among diabetics in the region are warranted.
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Affiliation(s)
- Richard Migisha
- Department of Physiology, Mbarara University of Science and Technology, P.O. Box 1410, Mbarara, Uganda.
| | - David Collins Agaba
- Department of Physiology, Mbarara University of Science and Technology, P.O. Box 1410, Mbarara, Uganda
| | - Godfrey Katamba
- Department of Physiology, King Ceasor University, Kampala, Uganda
| | - Jennifer Manne-Goehler
- Divsion of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
| | - Anthony Muyingo
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Mark J Siedner
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
- Department of Medicine, Massachusetts General Hospital, Boston, USA
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Affiliation(s)
- Artaza Gilani
- UCL Research Department of Primary Care and Population Health, University College London Medical School (Royal Free Hospital Campus), London NW3 2PF, UK
| | - Stephen P Juraschek
- Harvard Medical School, Beth Israel Deaconess Medical Center, Division of General Medicine, Section for Research, Boston, MA 02215, USA
| | - Matthew J Belanger
- Harvard Medical School, Beth Israel Deaconess Medical Center, Division of General Medicine, Section for Research, Boston, MA 02215, USA
| | - Julie E Vowles
- Hillingdon Hospitals NHS Foundation Trust, Uxbridge UB8 3NN, UK
| | - S Goya Wannamethee
- UCL Research Department of Primary Care and Population Health, University College London Medical School (Royal Free Hospital Campus), London NW3 2PF, UK
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20
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Gilani A, De Caterina R, Papacosta O, Lennon LT, Whincup PH, Wannamethee SG. Excessive Orthostatic Changes in Blood Pressure Are Associated With Incident Heart Failure in Older Men: A Prospective Analysis From the BRHS. Hypertension 2021; 77:1481-1489. [PMID: 33719509 DOI: 10.1161/hypertensionaha.120.15817] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Artaza Gilani
- University College London Research Department of Primary Care and Population Health, Royal Free Hospital, United Kingdom (A.G., O.P., L.T.L., S.G.W.)
| | - Raffaele De Caterina
- Cardiovascular Division, Pisa University Hospital, University of Pisa, Italy (R.D.E.C.).,Fondazione VillaSerena per la Ricerca, Città Sant'Angelo, Pescara, Italy (R.D.E.C.)
| | - Olia Papacosta
- University College London Research Department of Primary Care and Population Health, Royal Free Hospital, United Kingdom (A.G., O.P., L.T.L., S.G.W.)
| | - Lucy T Lennon
- University College London Research Department of Primary Care and Population Health, Royal Free Hospital, United Kingdom (A.G., O.P., L.T.L., S.G.W.)
| | - Peter H Whincup
- Population Health Research Institute, St George's, University of London, Cranmer Terrace, United Kingdom (P.H.W.)
| | - S Goya Wannamethee
- University College London Research Department of Primary Care and Population Health, Royal Free Hospital, United Kingdom (A.G., O.P., L.T.L., S.G.W.)
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Rouabhi M, Durieux J, Al-Kindi S, Cohen JB, Townsend RR, Rahman M. Orthostatic Hypertension and Hypotension and Outcomes in CKD: The CRIC (Chronic Renal Insufficiency Cohort) Study. Kidney Med 2021; 3:206-215.e1. [PMID: 33851116 PMCID: PMC8039407 DOI: 10.1016/j.xkme.2020.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Rationale & Objective There are limited data about the prevalence and prognostic significance of orthostatic hypo- and hypertension in patients with chronic kidney disease. The objective of this study is to determine the prevalence of orthostatic hypo- and hypertension in a cohort of patients with chronic kidney disease and examine their association with clinical outcomes. Study Design Prospective cohort study: Chronic Renal Insufficiency Cohort (CRIC) Study. Setting & Population 7 clinical centers, participants with chronic kidney disease. Exposures Orthostatic hypotension (decline in systolic blood pressure [BP] > 20 mm Hg) and orthostatic hypertension (increase in systolic BP > 20 mm Hg) from seated to standing position. Outcomes Cardiovascular and kidney outcomes and mortality. Analytical Approach Logistic regression was used to determine factors associated with orthostatic hypo- and hypertension; Cox regression was used to examine associations with clinical outcomes. Results Mean age of study population (n = 3,873) was 58.1 ± 11.0 years. There was a wide distribution of change in systolic BP from seated to standing (from −73.3 to +60.0 mm Hg); 180 participants (4.6%) had orthostatic hypotension and 81 (2.1%) had orthostatic hypertension. Diabetes, reduced body mass index, and β-blocker use were independently associated with orthostatic hypotension. Black race and higher body mass index were independently associated with orthostatic hypertension. After a median follow-up of 7.9 years, orthostatic hypotension was independently associated with high risk for cardiovascular (HR, 1.12; 95% CI, 1.03-1.21) but not kidney outcomes or mortality. Orthostatic hypertension was independently associated with high risk for kidney (HR, 1.51; 96% CI, 1.14-1.97) but not cardiovascular outcomes or mortality. Limitations Orthostatic change in BP was ascertained at a single visit. Conclusions Orthostatic hypotension was independently associated with higher risk for cardiovascular outcomes, whereas orthostatic hypertension was associated with higher risk for kidney outcomes. These findings highlight the importance of orthostatic BP measurement in practice and the need for future investigation to understand the mechanisms and potential interventions to minimize the risk associated with orthostatic changes in BP.
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Affiliation(s)
- Mohamed Rouabhi
- School of Medicine, Case Western Reserve University, Cleveland, OH
| | - Jared Durieux
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Sadeer Al-Kindi
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Jordana B Cohen
- Renal-Electrolyte and Hypertension Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Raymond R Townsend
- Renal-Electrolyte and Hypertension Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Mahboob Rahman
- School of Medicine, Case Western Reserve University, Cleveland, OH.,Division of Nephrology and Hypertension, University Hospitals Cleveland Medical Center and Louis Stokes Cleveland VA Medical Center, Cleveland, OH
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22
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Hu Y, He B, Han Z, Wang Y, Tao C, Wang Y, Jin H, Du J. Risk Factors for Orthostatic Hypertension in Children. J Pediatr 2020; 227:212-217.e1. [PMID: 32668285 DOI: 10.1016/j.jpeds.2020.07.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 07/05/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To investigate the risk factors for orthostatic hypertension in children. STUDY DESIGN Eighty children with orthostatic hypertension were enrolled in the group with orthostatic hypertension, and 51 healthy children served as the control group. Demographic characteristics, clinical history, daily water intake, nightly sleep duration, the results of the standing test, and complete blood count were recorded and compared between the 2 groups. The risk factors for pediatric orthostatic hypertension were determined by logistic regression analysis. RESULTS Body mass index and red blood cell distribution width were higher in the group with orthostatic hypertension than in healthy children, whereas daily water intake and sleep duration were lower. Logistic regression analyses showed that, if a child suffered from overweight, suffered from obesity, had a daily water intake of less than 800 mL, or had a red blood cell distribution width that was increased by 1%, the risk of orthostatic hypertension would be increased by 6.069 times (95% CI, 1.375-26.783; P < .05), 7.482 times (95% CI, 1.835-30.515; P < .01), 4.027 times (95% CI, 1.443-11.241; P < .01), or 4.008 times (95% CI, 1.698-9.461; P < .01), respectively. However, if the sleep duration was increased by 1 hour, the risk of developing orthostatic hypertension would be decreased by 74.3% (95% CI, 54.6%-85.4%, P < .01). CONCLUSIONS Increased body mass index, inadequate water intake and sleep duration, and elevated red blood cell distribution width were identified as risk factors for pediatric orthostatic hypertension.
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Affiliation(s)
- Yang Hu
- Department of Pediatrics, Peking University First Hospital, Beijing, China; Research Unit of Clinical Diagnosis and Treatment of Pediatric Syncope and Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Bing He
- Department of Pediatrics, People's Hospital of Wuhan University, Hubei, China
| | - Zhenhui Han
- Department of Pediatrics, Children's Hospital of Kaifeng, Henan, China
| | - Yuanyuan Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Chunyan Tao
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Yaru Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China.
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China; Key Laboratory of Cardiovascular Sciences, Ministry of Education, Beijing, China.
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Rahman M, Pradhan N, Chen Z, Kanthety R, Townsend RR, Tatsuoka C, Wright JT. Orthostatic Hypertension and Intensive Blood Pressure Control; Post-Hoc Analyses of SPRINT. Hypertension 2020; 77:49-58. [PMID: 33161773 DOI: 10.1161/hypertensionaha.120.15887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We evaluated the association between orthostatic hypertension and cardiovascular outcomes and the effect of intensive blood pressure (BP) control on cardiovascular outcomes in patients with orthostatic hypertension. Post hoc analyses of the SPRINT (Systolic Blood Pressure Intervention Trial) data were conducted; orthostatic hypertension was defined as increase in systolic BP≥20 mm Hg or increase in diastolic BP≥10 mm Hg with standing. Of 9329 participants, 1986 (21.2%) had orthostatic hypertension at baseline. Within the intensive treatment group, participants with orthostatic hypertension were at higher risk of developing the composite cardiovascular outcome (hazard ratio, 1.44 [95% CI, 1.1-1.87], P=0.007) compared with participants without orthostatic hypertension. Within the standard treatment group, there were no significant differences in cardiovascular outcome between participants with and without orthostatic hypertension. In participants with orthostatic hypertension, there was no statistically significant difference in risk of the composite cardiovascular outcome between the intensive and the standard BP treatment group (hazard ratio, 1.07 [95% CI, 0.78-1.47], P=0.68). In participants without orthostatic hypertension at baseline, the intensive treatment group was associated with a lower risk of the composite cardiovascular outcome (hazard ratio, 0.67 [95% CI, 0.56-0.79], P<0.0001). Orthostatic hypertension was associated with a higher risk of cardiovascular outcomes in the intensive and not in the standard treatment group; intensive treatment of BP did not reduce the risk of cardiovascular outcomes compared with standard treatment in patients with orthostatic hypertension. These post hoc analyses are hypothesis generating and will need to be confirmed in future studies.
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Affiliation(s)
- Mahboob Rahman
- From the Division of Nephrology and Hypertension (M.R., N.P., R.K., J.T.W.)
| | | | | | - Radhika Kanthety
- From the Division of Nephrology and Hypertension (M.R., N.P., R.K., J.T.W.)
| | - Raymond R Townsend
- University Hospitals Cleveland Medical Center, Case Western Reserve University, OH and University of Pennsylvania Perelman School of Medicine, Philadelphia (R.R.T.)
| | | | - Jackson T Wright
- From the Division of Nephrology and Hypertension (M.R., N.P., R.K., J.T.W.)
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Wang S, Wecht JM, Legg Ditterline B, Ugiliweneza B, Maher MT, Lombard AT, Aslan SC, Ovechkin AV, Bethke B, Gunter JTH, Harkema SJ. Heart rate and blood pressure response improve the prediction of orthostatic cardiovascular dysregulation in persons with chronic spinal cord injury. Physiol Rep 2020; 8:e14617. [PMID: 33080121 PMCID: PMC7575221 DOI: 10.14814/phy2.14617] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/17/2020] [Accepted: 09/25/2020] [Indexed: 12/17/2022] Open
Abstract
Unstable blood pressure after spinal cord injury (SCI) is not routinely examined but rather predicted by level and completeness of injury (i.e., American Spinal Injury Association Impairment Scale AIS classification). Our aim was to investigate hemodynamic response to a sit-up test in a large cohort of individuals with chronic SCI to better understand cardiovascular function in this population. Continuous blood pressure and ECG were recorded from individuals with SCI (n = 159) and non-injured individuals (n = 48). We found orthostatic hypotension occurred within each level and AIS classification (n = 36). Moreover, 45 individuals with chronic SCI experienced a drop in blood pressure that did not meet the criteria for orthostatic hypotension, but was accompanied by dramatic increases in heart rate, reflecting orthostatic intolerance. A cluster analysis of hemodynamic response to a seated position identified eight distinct patterns of interaction between blood pressure and heart rate during orthostatic stress indicating varied autonomic responses. Algorithmic cluster analysis of heart rate and blood pressure is more sensitive to diagnosing orthostatic cardiovascular dysregulation. This indicates blood pressure instability cannot be predicted by level and completeness of SCI, and the consensus statement definition of orthostatic hypotension is insufficient to characterize the variability of blood pressure and heart rate responses during orthostatic stress. Both blood pressure and heart rate responses are needed to characterize autonomic function after SCI.
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Affiliation(s)
- Siqi Wang
- Kentucky Spinal Cord Injury Research CenterUniversity of LouisvilleLouisvilleKYUSA
- Department of Neurological SurgeryUniversity of Louisville School of MedicineLouisvilleKYUSA
| | - Jill M. Wecht
- James J Peters VA Medical CenterBronxNYUSA
- Departments of Medicine and Rehabilitation Medicinethe Icahn School of MedicineMount SinaiNew YorkNYUSA
| | - Bonnie Legg Ditterline
- Kentucky Spinal Cord Injury Research CenterUniversity of LouisvilleLouisvilleKYUSA
- Department of Neurological SurgeryUniversity of Louisville School of MedicineLouisvilleKYUSA
| | - Beatrice Ugiliweneza
- Kentucky Spinal Cord Injury Research CenterUniversity of LouisvilleLouisvilleKYUSA
- Department of Neurological SurgeryUniversity of Louisville School of MedicineLouisvilleKYUSA
| | - Matthew T. Maher
- James J Peters VA Medical CenterBronxNYUSA
- Kessler Institute for RehabilitationWest OrangeNJUSA
| | - Alexander T. Lombard
- James J Peters VA Medical CenterBronxNYUSA
- Kessler Institute for RehabilitationWest OrangeNJUSA
| | - Sevda C. Aslan
- Kentucky Spinal Cord Injury Research CenterUniversity of LouisvilleLouisvilleKYUSA
- Department of Neurological SurgeryUniversity of Louisville School of MedicineLouisvilleKYUSA
| | - Alexander V. Ovechkin
- Kentucky Spinal Cord Injury Research CenterUniversity of LouisvilleLouisvilleKYUSA
- Department of Neurological SurgeryUniversity of Louisville School of MedicineLouisvilleKYUSA
| | | | | | - Susan J. Harkema
- Kentucky Spinal Cord Injury Research CenterUniversity of LouisvilleLouisvilleKYUSA
- Department of Neurological SurgeryUniversity of Louisville School of MedicineLouisvilleKYUSA
- Frazier Rehab InstituteLouisvilleKYUSA
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Abstract
The concept of orthostatic hypertension in children was first proposed in 2012. The pathogenesis is not clear by now. Orthostatic hypertension is one of the important causes of orthostatic intolerance in children and is related to the development of essential hypertension in the future. It is commonly seen in older children, with dizziness and syncope as their main clinical manifestations. Non-drug therapy is the commonly used treatment strategy, which is effective to improve the orthostatic intolerance symptoms. In this paper, we reviewed the clinical studies on the pathogenesis, clinical characteristics, diagnostic criteria, and treatment of orthostatic hypertension in children, aiming to provide new insights for the future studies on pediatric orthostatic hypertension.
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Affiliation(s)
- Yang Hu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Research Unit of Clinical Diagnosis and Treatment of Pediatric Syncope and Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Key Laboratory of Cardiovascular Sciences, Ministry of Education, Beijing, China
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26
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Postural blood pressure changes in the elderly: orthostatic hypotension and hypertension. Blood Press Monit 2020; 25:267-270. [DOI: 10.1097/mbp.0000000000000466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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The triad of orthostatic hypotension, blood pressure variability, and arterial stiffness: a new syndrome? J Hypertens 2020; 38:1031-1032. [PMID: 32371791 DOI: 10.1097/hjh.0000000000002411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jordan J, Ricci F, Hoffmann F, Hamrefors V, Fedorowski A. Orthostatic Hypertension: Critical Appraisal of an Overlooked Condition. Hypertension 2020; 75:1151-1158. [PMID: 32223382 DOI: 10.1161/hypertensionaha.120.14340] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Orthostatic hypertension, which appears to be mediated through excess neurohumoral activation while standing, is a common blood pressure trait among patients with and without arterial hypertension. However, lack of consensus regarding the definition of orthostatic hypertension makes it difficult to assess the true prevalence of this condition. Orthostatic hypertension appears to predict the risk for progression to arterial hypertension in younger and risk of cardiovascular morbidity and mortality in older persons. Yet, the risk may differ between populations. Whether orthostatic hypertension indicates a generally increased risk of death, constitutes an intermediate variable in the causal pathway of cardiovascular risk factors, a simple measure of disease severity, or an independently acting mechanism is not known. Since both orthostatic hypotension and orthostatic hypertension herald increased risk of cardiovascular disease, it appears reasonable to screen the patients for abnormal orthostatic blood pressure responses using simple orthostatic testing. However, how presence of orthostatic hypertension may affect clinical management decisions such as the choice of antihypertensive drugs is currently difficult to ascertain. Clearly, this issue deserves more attention.
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Affiliation(s)
- Jens Jordan
- From the Institute of Aerospace Medicine, German Aerospace Center (DLR) and Chair of Aerospace Medicine (J.J., F.H.), University of Cologne, Germany.,University Hypertension Center (J.J., F.H.), University of Cologne, Germany
| | - Fabrizio Ricci
- Department of Clinical Sciences, Lund University, Malmö, Sweden (F.R., V.H., A.F.).,Department of Neuroscience, Imaging and Clinical Sciences, "G.d'Annunzio" University, Chieti-Pescara, Italy (F.R.)
| | - Fabian Hoffmann
- From the Institute of Aerospace Medicine, German Aerospace Center (DLR) and Chair of Aerospace Medicine (J.J., F.H.), University of Cologne, Germany.,University Hypertension Center (J.J., F.H.), University of Cologne, Germany
| | - Viktor Hamrefors
- Department of Clinical Sciences, Lund University, Malmö, Sweden (F.R., V.H., A.F.).,Department of Internal Medicine (V.H.), Skåne University Hospital, Malmö, Sweden
| | - Artur Fedorowski
- Department of Clinical Sciences, Lund University, Malmö, Sweden (F.R., V.H., A.F.).,Department of Cardiology (A.F.), Skåne University Hospital, Malmö, Sweden
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Hu Y, Wang Y, He B, Wang Y, Han Z, Tao C, Li H, Jiang Y, Tang C, Du J. Sympathetic Overactivation From Supine to Upright Is Associated With Orthostatic Hypertension in Children and Adolescents. Front Pediatr 2020; 8:54. [PMID: 32154199 PMCID: PMC7047410 DOI: 10.3389/fped.2020.00054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/05/2020] [Indexed: 12/03/2022] Open
Abstract
There are no prior publications or submissions with any overlapping information, including studies and patients. The study data have not been presented as an abstract or poster before the submission. Objectives: The study was conducted to analyze the changes of baroreflex sensitivity and heart rate variability from supine to upright standing in children and adolescents with orthostatic hypertension to explore whether and how the autonomic nerve regulation was involved in the development of pediatric orthostatic hypertension. Methods: This case-control study included twenty-five children with orthostatic hypertension (the patient group) and twenty-six healthy controls (the control group). All subjects underwent a standing test, during which their hemodynamic parameters were continuously monitored by a Finapres Medical System, and baroreflex sensitivity and heart rate variability were calculated. Results: The demographic characteristics, supine baroreflex sensitivity, and supine heart rate variability including time domain and frequency domain indices did not differ between the patients with orthostatic hypertension and healthy subjects (P > 0.05). However, a more obvious drop of baroreflex sensitivity and a greater increase of low frequency/high frequency ratio from supine to upright were observed in subjects with orthostatic hypertension compared with those in the healthy children (P < 0.001 and P < 0.01, respectively). Changes of baroreflex sensitivity were negatively related to mean arterial pressure changes from supine to upright in all subjects (P < 0.01), and the increases in low frequency/high frequency ratio from supine to standing were positively correlated with those in mean arterial pressure in the study subjects (P < 0.001). Conclusion: Upright sympathetic overactivation is associated with pediatric orthostatic hypertension.
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Affiliation(s)
- Yang Hu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Research Unit of Clinical Diagnosis and Treatment of Pediatric Syncope and Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Yuanyuan Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Bing He
- Department of Pediatrics, People's Hospital of Wuhan University, Hubei, China
| | - Yaru Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Zhenhui Han
- Department of Pediatrics, Children's Hospital of Kaifeng, Henan, China
| | - Chunyan Tao
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Hongxia Li
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Yi Jiang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Chaoshu Tang
- Key Laboratory of Cardiovascular Sciences, Ministry of Education, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Key Laboratory of Cardiovascular Sciences, Ministry of Education, Beijing, China
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