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Zhou Y, Zhao L, Zhang Z, Meng X, Cai QJ, Zhao XL, Wang LP, Hu AH, Zhou XL. Sex difference in nocturnal blood pressure dipping in adolescents with varying degrees of adiposity. BMC Pediatr 2024; 24:353. [PMID: 38778302 PMCID: PMC11110230 DOI: 10.1186/s12887-024-04804-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/02/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND For adolescents, abnormal dipping patterns in blood pressure (BP) are associated with early-onset organ damage and a higher risk of cardiovascular disorders in adulthood. Obesity is one of the most common reasons for abnormal BP dipping in young people. However, it is unknown whether the severity of obesity is associated with BP dipping status and whether this association is sex-dependent. METHODS 499 participants between 12 and 17 years old with overweight or obesity underwent ambulatory blood pressure monitoring (ABPM) between April 2018 and January 2019 in Beijing and Baoding. Participants were grouped by body mass index (BMI) into overweight (BMI 85th-95th percentile), obese (BMI ≥ 95th percentile) and severely obese (BMI ≥ 120% of 95th percentile or ≥ 35 kg/m2) groups. Non-dipping was defined as a < 10% reduction in BP from day to night. The interaction effect between sex and obesity degree was also analyzed. RESULTS 326 boys and 173 girls were included, of whom 130 were overweight, 189 were obese, and 180 were severely obese. Girls with severe obesity had a higher prevalence of non-dipping, but boys showed no significant differences in BP dipping status between obesity categories. In addition, as obesity severity went up, a more evident increase in night-time SBP was observed in girls than in boys. CONCLUSIONS Severely obese is associated with a higher prevalence of non-BP dipping patterns in girls than in boys, which suggests that the relationship between the severity of obesity and BP dipping status might be sex-specific.
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Affiliation(s)
- Yi Zhou
- Department of Cardiology, Shenzhen Cardiovascular Minimally Invasive Medical Engineering Technology Research and Development Center, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, 518020, China
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Lin Zhao
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
- National Integrated Traditional and Western Medicine Center for Cardiovascular Disease, China-Japan Friendship Hospital, Beijing, China
| | - Zenglei Zhang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Xu Meng
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Qiu-Jing Cai
- Department of Non-communicable Disease Management, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, China
| | - Xiao-Lei Zhao
- Department of Non-communicable Disease Management, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, China
| | - Lin-Ping Wang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
| | - Ai-Hua Hu
- Department of Non-communicable Disease Management, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, China.
| | - Xian-Liang Zhou
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
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Webb AJ, Klerman EB, Mandeville ET. Circadian and Diurnal Regulation of Cerebral Blood Flow. Circ Res 2024; 134:695-710. [PMID: 38484025 PMCID: PMC10942227 DOI: 10.1161/circresaha.123.323049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 03/17/2024]
Abstract
Circadian and diurnal variation in cerebral blood flow directly contributes to the diurnal variation in the risk of stroke, either through factors that trigger stroke or due to impaired compensatory mechanisms. Cerebral blood flow results from the integration of systemic hemodynamics, including heart rate, cardiac output, and blood pressure, with cerebrovascular regulatory mechanisms, including cerebrovascular reactivity, autoregulation, and neurovascular coupling. We review the evidence for the circadian and diurnal variation in each of these mechanisms and their integration, from the detailed evidence for mechanisms underlying the nocturnal nadir and morning surge in blood pressure to identifying limited available evidence for circadian and diurnal variation in cerebrovascular compensatory mechanisms. We, thus, identify key systemic hemodynamic factors related to the diurnal variation in the risk of stroke but particularly identify the need for further research focused on cerebrovascular regulatory mechanisms.
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Affiliation(s)
- Alastair J.S. Webb
- Department of Clinical Neurosciences, Wolfson Centre for Prevention of Stroke and Dementia, University of Oxford, United Kingdom (A.J.S.W.)
| | - Elizabeth B. Klerman
- Department of Clinical Neurosciences, Wolfson Centre for Prevention of Stroke and Dementia, University of Oxford, United Kingdom (A.J.S.W.)
- Department of Neurology, Massachusetts General Hospital, Boston (E.B.K.)
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women’s Hospital, Boston, MA (E.B.K.)
- Division of Sleep Medicine, Harvard Medical School, Boston, MA (E.B.K.)
| | - Emiri T. Mandeville
- Departments of Radiology and Neurology, Neuroprotection Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston (E.T.M.)
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de Juan Bagudá J, Rodríguez Chaverri A, Caravaca Pérez P, Aguilar-Rodríguez F, García-Cosío Carmena MD, Mirabet Pérez S, López ML, de la Cruz J, Guerra JM, Segura J, Arribas Ynsaurriaga F, Ruilope LM, Delgado Jiménez JF. Twenty-four hour ambulatory blood pressure monitoring in patients with stable heart failure. Prevalence and associated factors. REVISTA ESPANOLA DE CARDIOLOGIA (ENGLISH ED.) 2023; 76:852-861. [PMID: 37182724 DOI: 10.1016/j.rec.2023.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 02/23/2023] [Indexed: 05/16/2023]
Abstract
INTRODUCTION AND OBJECTIVES Hypertension is highly common in heart failure (HF). However, there is limited information on its prevalence, circadian variation, and relationship with the various HF phenotypes. The objective of this study was to describe the prevalence of hypertension and its patterns in HF. METHODS This was a cross-sectional observational study of patients with optimized stable chronic HF. The patients underwent blood pressure (BP) measurement in the office and 24-hour ambulatory monitoring. We estimated the prevalence of hypertension, and its diurnal (controlled, uncontrolled, white coat, and masked) and nocturnal (dipper, nondipper, and reverse dipper) patterns. We also analyzed the factors associated with the different patterns and HF phenotypes. RESULTS From 2017 to 2021, 266 patients were included in the study (mean age, 72±12 years, 67% male, 46% with reduced ejection fraction). Hypertension was present in 83%: controlled in 68%, uncontrolled in 10%, white coat in 10%, and masked in 11%. Among patients with high office BP, 51% had white coat hypertension. Among those with normal office BP, 14% had masked hypertension. The prevalence of dipper, nondipper, and reverse dipper patterns was 31%, 43%, and 26%, respectively. Systolic BP was lower in HF with reduced ejection fraction than in HF with preserved ejection fraction (P <.001). CONCLUSIONS Ambulatory BP monitoring in HF identified white coat hypertension in more than half of patients with high office BP and masked hypertension in a relevant percentage of patients. The distribution of daytime patterns was similar to that of the population without HF in the literature, but most of the study patients had a pathological nocturnal pattern.
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Affiliation(s)
- Javier de Juan Bagudá
- Servicio de Cardiología, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain; Departamento de Medicina, Facultad de Ciencias Biomédicas y de la Salud, Universidad Europea de Madrid, Madrid, Spain.
| | | | | | - Fernando Aguilar-Rodríguez
- Servicio de Medicina Interna, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain
| | - M Dolores García-Cosío Carmena
- Servicio de Cardiología, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain
| | - Sonia Mirabet Pérez
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain; Servicio de Cardiología, Hospital de la Santa Creu i Sant Pau, IIB SANT PAU, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - María Luisa López
- Unidad de Hipertensión Arterial, Servicio de Nefrología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Javier de la Cruz
- Instituto de Investigación imas12, Red SAMID-ISCIII, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - José M Guerra
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain; Servicio de Cardiología, Hospital de la Santa Creu i Sant Pau, IIB SANT PAU, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Julián Segura
- Unidad de Hipertensión Arterial, Servicio de Nefrología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Fernando Arribas Ynsaurriaga
- Servicio de Cardiología, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain; Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Luis Miguel Ruilope
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain; Laboratorio Traslacional Cardiorrenal y Unidad de Hipertensión Arterial, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain; Facultad de Ciencias del Deporte, Universidad Europea de Madrid, Madrid, Spain
| | - Juan F Delgado Jiménez
- Servicio de Cardiología, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain; Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
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Ayalon-Dangur I, Ofer-Shiber S, Shochat T, Genin I, Arlyuk M, Grossman A. The prevalence of masked hypertension in patients with lone atrial fibrillation: a cross sectional analytical study. Sci Rep 2023; 13:9751. [PMID: 37328567 PMCID: PMC10275900 DOI: 10.1038/s41598-023-36853-3] [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: 05/16/2022] [Accepted: 06/11/2023] [Indexed: 06/18/2023] Open
Abstract
Atrial fibrillation (AF) is prevalent in individuals with essential hypertension (HTN). Masked hypertension occurs in up to 15% of the general population and is associated with adverse clinical outcome. The aim of the current study was to evaluate the prevalence of masked hypertension in apparently normotensive individuals with lone AF. A cross sectional analytical study performed at the Rabin Medical Center included all patients > 18 years who visited the emergency department (ED) in the years 2018-2021 with idiopathic AF, had normal blood pressure (BP) values during their ED visit and did not have a history of hypertension or current use of anti-hypertensives. Ambulatory blood pressure monitoring (ABPM) was performed in all eligible patients within 30 days from ED visit. Data collected included information from the ED visit and data extracted from the monitoring device. A total of 1258 patients were screened for eligibility, of which 40 were included in the analysis. The average age was 53.4 ± 16 years, 28 patients (70%) were males. Overall, 18 individuals (46%) had abnormal BP values according to the 2017 ACC/AHA guidelines for the diagnosis of hypertension. Of these, 12 had abnormal 24-h BP average (≥ 125/75 mmHg), one had isolated daytime abnormal average (≥ 130/80 mmHg) and 11 had isolated night time abnormal average (≥ 110/65 mmHg). Masked hypertension is prevalent in patients with lone AF without a diagnosis of HTN and performing ABPM in such individuals should be strongly considered.
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Affiliation(s)
- Irit Ayalon-Dangur
- Department of Internal Medicine E, Rabin Medical Center, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shachaf Ofer-Shiber
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Rheumatology, Rabin Medical Center, Petach Tikva, Israel
- The Department of Emergency Medicine, Rabin Medical Center, Beilinson Campus, Israel
| | - Tzippy Shochat
- Bio-Statistical Consultant, Rabin Medical Center, Beilinson Campus, Israel
| | - Irina Genin
- Department of Internal Medicine B, Rabin Medical Center, Petah Tikva, Israel
| | - Maya Arlyuk
- Department of Internal Medicine B, Rabin Medical Center, Petah Tikva, Israel
| | - Alon Grossman
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
- Department of Internal Medicine B, Rabin Medical Center, Petah Tikva, Israel.
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Sawant R, Suryawanshi S, Jadhav M, Barkate H, Bhushan S, Rane T. A Prospective, Randomized Open-Label Study for Assessment of Antihypertensive Effect of Telmisartan Versus Cilnidipine Using Ambulatory Blood Pressure Monitoring (START ABPM Study). Cardiol Res 2023; 14:211-220. [PMID: 37304922 PMCID: PMC10257498 DOI: 10.14740/cr1476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/25/2023] [Indexed: 06/13/2023] Open
Abstract
Background The antihypertensive agent telmisartan is an angiotensin II receptor blocker with a terminal elimination half-life of 24 h and has a high lipophilicity, thereby enhancing its bioavailability. Another antihypertensive agent, cilnidipine is a calcium antagonist and has dual mode of action on the calcium channels. This study aimed at determining effect of these drugs on ambulatory blood pressure (BP) levels. Methods A randomized, open-label, single-center study was conducted during 2021 - 2022 on newly diagnosed adult patients with stage-I hypertension, in a mega city of India. Forty eligible patients were randomized to telmisartan (40 mg) and cilnidipine (10 mg) groups, with once daily dose administered for 56 consecutive days. Ambulatory blood pressure monitoring (ABPM) (24 h) was performed pre- and post-treatment, and the ABPM-derived parameters were compared statistically. Results Statistically significant mean reductions were observed in all BP endpoints in telmisartan group but only in 24-h systolic blood pressure (SBP), daytime and nighttime SBP, and manual SBP and diastolic blood pressure (DBP) in cilnidipine group. The mean change from baseline to day 56 between two treatment groups showed statistical significance in last 6-h SBP (P = 0.01) and DBP (P = 0.014), and morning SBP (P = 0.019) and DBP (P = 0.028). The percent nocturnal drop within and between groups was statistically nonsignificant. Also, the between group mean SBP and DBP smoothness index differed nonsignificantly. Conclusions Telmisartan and cilnidipine once daily were effective and well tolerated in the treatment of newly diagnosed stage-I hypertension. Telmisartan provided sustained 24-h BP control and may offer advantages over cilnidipine in terms of BP reductions, particularly over the 18- to 24-h post-dose period or critical early morning hours.
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Affiliation(s)
- Rahul Sawant
- Hridaymitra Cardiac Clinic, Pune, Maharashtra, India
| | - Sachin Suryawanshi
- Department of Global Medical Affairs, Glenmark Pharmaceuticals Ltd., Mumbai, Maharashtra, India
| | - Mayur Jadhav
- Department of Global Medical Affairs, Glenmark Pharmaceuticals Ltd., Mumbai, Maharashtra, India
| | - Hanmant Barkate
- Department of Global Medical Affairs, Glenmark Pharmaceuticals Ltd., Mumbai, Maharashtra, India
| | - Sumit Bhushan
- Department of Global Medical Affairs, Glenmark Pharmaceuticals Ltd., Mumbai, Maharashtra, India
| | - Tanmay Rane
- Department of Global Medical Affairs, Glenmark Pharmaceuticals Ltd., Mumbai, Maharashtra, India
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Havelkova A, Dvorak P, Siegelova J, Dobsak P, Filipensky P, Cornelissen G. Possibilities of Interpreting the Night-to-Day Ratio Specified by 24-Hour Blood Pressure Monitoring. Int J Clin Pract 2023; 2023:6530295. [PMID: 36793927 PMCID: PMC9908340 DOI: 10.1155/2023/6530295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/29/2022] [Accepted: 01/20/2023] [Indexed: 02/04/2023] Open
Abstract
AIM Specify the risk rate of incorrect patient classification based on the night-to-day ratio specification from singular 24-h ABPM in comparison to the results of 7-day ABPM monitoring. MATERIALS AND METHODS 1197 24 h cycles were enrolled in 171 subjects in the study and divided into 4 groups: group 1 (40 healthy men and women without exercise), group 2 (40 healthy exercise-training men and women), group 3 (40 patients with ischemic coronary artery disease without exercise), and group 4 (51 patients with ischemic coronary artery disease following cardiovascular rehabilitation). The subject of the evaluation was the percentage rate of incorrect subject classification (dipper, nondipper, extreme dipper, and riser) based on the mean blood pressure values for 7 days and from seven independent 24-hour cycles (the mean value mode). RESULTS In the case of the individuals included in the monitored groups, the mean night-to-day ratio-based (mode for the 7 days versus the individual days of 24-hour monitoring) classification accordance ranged between 59% and 62%. Only in singular cases did the accordance reach 0% or 100%. The accordance size was not dependent on the health or cardiovascular disease (p < 0.594; 56% vs. 54%) or physical activity (p < 0.833; 55% vs. 54%) of the monitored individuals. CONCLUSION The specification of the night-to-day ratio of each individual for each day of the 7-day ABPM monitoring would be the most convenient option. In many patients, diagnosing could thus be based on the most frequently occurring values (mode specification).
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Affiliation(s)
- Alena Havelkova
- Department of Physiotherapy, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- St. Anne's Teaching Hospital, Brno, Czech Republic
| | - Petr Dvorak
- Department of Biology, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences, Brno, Czech Republic
| | - Jarmila Siegelova
- Department of Physiotherapy, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- St. Anne's Teaching Hospital, Brno, Czech Republic
| | - Petr Dobsak
- Department of Physiotherapy, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- St. Anne's Teaching Hospital, Brno, Czech Republic
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Sá Gomes e Farias AV, de Lima Cavalcanti MP, de Passos Junior MA, Vechio Koike BD. The association between sleep deprivation and arterial pressure variations: a systematic literature review. Sleep Med X 2022; 4:100042. [PMID: 35169694 PMCID: PMC8829775 DOI: 10.1016/j.sleepx.2022.100042] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 01/04/2022] [Accepted: 01/17/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives Arterial hypertension is a cardiovascular disease defined as a sustained high blood pressure, constituting an important risk factor for the development of heart diseases, such as coronary heart disease and heart failure. At the same time, pathophysiological pathways underlying sleeping deprivation provides biological plausibility for a causation connection between sleep deprivation and acute or chronic blood pressure elevation, such as the mechanism behind blood pressure dipping at night, which strongly relies on reduced sympathetic activity provided by sleep, besides empirical and clinical evidence suggesting that sleep disorders incidence is correlate with posterior development of arterial hypertension. The aim of this study was to systematically review published studies analyzing the possible relationship between sleep deprivation and variations in blood pressure during nighttime and daytime. Methods The research was carried out in the second semester of 2020 following the PRISMA model and using the LILACS, MEDLINE and COCHRANE (CENTRAL) databases. The keywords used were associated using the Boolean method. Only trials and studies in humans unrelated to sleep apnea were included, in an attempt to answer the question proposed. Duplications and articles outside the topic were excluded. Results After the selection processes, fourteen studies were left, which were classified, depending on the findings, in four categories: 1) blood pressure differences only in sleep deprivation's night; 2) blood pressure differences only in the following day after sleep deprivation's night; 3) blood pressure differences in both nights and 4) those that found no blood pressure differences. Conclusion It was found an increase in blood pressure on the night of sleep deprivation, suggesting a possible causality with an acute increase in blood pressure depending on the population studied. In general, sleep deprivation is acutely associated with blood pressure elevation or acute elevation of markers that suggest the role of compensatory mechanisms, such as increased natriuresis and increased parasympathetic activity. Sleep deprivation results in increased simpathetic activity. Chronic sleep deprivation might lead to systemic arterial hypertension. Increased parasympathetic activity in acute sleep deprivation play a role as compensatory mechanism.
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Diagnosing hypertension in primary care: a retrospective cohort study to investigate the importance of night-time blood pressure assessment. Br J Gen Pract 2022; 73:e16-e23. [PMID: 36316162 PMCID: PMC9639598 DOI: 10.3399/bjgp.2022.0160] [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: 03/21/2022] [Accepted: 07/03/2022] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Ambulatory blood-pressure monitoring (ABPM) has become less frequent in primary care since the COVID-19 pandemic, with home blood-pressure monitoring (HBPM) often the preferred alternative; however, HBPM cannot measure night-time blood pressure (BP), and patients whose night-time BP does not dip, or rises (reverse dipping), have poorer cardiovascular outcomes. AIM To investigate the importance of measuring night-time BP when assessing individuals for hypertension. DESIGN AND SETTING Retrospective cohort study of two patient populations - namely, hospital patients admitted to four UK acute hospitals located in Oxfordshire, and participants of the BP in different ethnic groups (BP-Eth) study, who were recruited from 28 UK general practices in the West Midlands. METHOD Using BP data collected for the two cohorts, three systolic BP phenotypes (dipper, non-dipper, and reverse dipper) were studied. RESULTS Among the hospital cohort, 48.9% (n = 10 610/21 716) patients were 'reverse dippers', with an average day-night systolic BP difference of +8.0 mmHg. Among the community (BP-Eth) cohort, 10.8% (n = 63/585) of patients were reverse dippers, with an average day-night systolic BP difference of +8.5 mmHg. Non-dipper and reverse-dipper phenotypes both had lower daytime systolic BP and higher night-time systolic BP than the dipper phenotype. Average daytime systolic BP was lowest in the reverse-dipping phenotype (this was 6.5 mmHg and 6.8 mmHg lower than for the dipper phenotype in the hospital and community cohorts, respectively), thereby placing them at risk of undiagnosed, or masked, hypertension. CONCLUSION Not measuring night-time BP puts all groups, other than dippers, at risk of failure to identify hypertension. As a result of this study, it is recommended that GPs should offer ABPM to all patients aged ≥60 years as a minimum when assessing for hypertension.
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Imamura M, Sasaki H, Shinto T, Tahara Y, Makino S, Kuwahara M, Tada A, Abe N, Michie M, Shibata S. Association Between Na, K, and Lipid Intake in Each Meal and Blood Pressure. Front Nutr 2022; 9:853118. [PMID: 35308273 PMCID: PMC8931534 DOI: 10.3389/fnut.2022.853118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/07/2022] [Indexed: 12/25/2022] Open
Abstract
Cardiovascular diseases (CVDs) are one of the leading causes of death worldwide, and one of the most significant risk factors for CVDs is high blood pressure. Blood pressure is associated with various nutrients, such as sodium, potassium, and cholesterol. However, research focusing on the timing of intake of these nutrients and blood pressure has not been conducted. In this study, we used dietary data and a questionnaire asking about the sleep, physical activity, and blood pressure, collected from the food-log app “Asken” (total N = 2,402), to investigate the relationship between the dietary data of nutrient intake in the breakfast, lunch, and dinner and blood pressure. Daily total intake of various nutrients such as sodium, sodium-to-potassium ratio, total energy, lipid, carbohydrate, and saturated fat showed a significant association with blood pressure depending on the meal timing. From multiple regression analysis, eliminating the confounding factors, lunch sodium-to-potassium ratio, dinner energy, lipid, cholesterol, saturated fat, and alcohol intake were positively associated with blood pressure, whereas breakfast protein and lunch fiber intake showed a negative association with blood pressure. Our results suggest that nutrient intake timing is also an important factor in the prevention of high blood pressure. Our study provides possibilities to prevent hypertension by changing the timing of nutrient intake, especially sodium, together with potassium and lipids. However, because our research was limited to food-log app users, broader research regarding the general population needs to be conducted.
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Affiliation(s)
- Momoko Imamura
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Hiroyuki Sasaki
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Takae Shinto
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Yu Tahara
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Saneyuki Makino
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Mai Kuwahara
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | | | | | | | - Shigenobu Shibata
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
- *Correspondence: Shigenobu Shibata
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Mathews H, Kumar S, Madhu B, Gona O, Srinath KM. The ambulatory blood pressure monitoring among obese and nonobese diabetes mellitus patients. Ann Afr Med 2022; 21:255-261. [DOI: 10.4103/aam.aam_65_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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11
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Mahdi A, Armitage LC, Tarassenko L, Watkinson P. Estimated Prevalence of Hypertension and Undiagnosed Hypertension in a Large Inpatient Population: A Cross-sectional Observational Study. Am J Hypertens 2021; 34:963-972. [PMID: 34022036 PMCID: PMC8457434 DOI: 10.1093/ajh/hpab070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 05/04/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Hypertension is a major cause of morbidity and mortality. In community populations the prevalence of hypertension, both in diagnosed and undiagnosed states, has been widely reported. However, estimates for the prevalence of hospitalized patients with average blood pressures (BPs) that meet criteria for the diagnosis of hypertension are lacking. We aimed to estimate the prevalence of patients in a UK hospital setting, whose average BPs meet current international guidelines for hypertension diagnosis. METHODS We performed a retrospective cross-sectional observational study of patients admitted to adult wards in 4 acute hospitals in Oxford, United Kingdom, between March 2014 and April 2018. RESULTS We identified 41,455 eligible admitted patients with a total of 1.7 million BP measurements recorded during their hospital admissions. According to European ESC/ESH diagnostic criteria for hypertension, 21.4% (respectively 47% according to American ACC/AHA diagnostic criteria) of patients had a mean BP exceeding the diagnostic threshold for either Stage 1, 2, or 3 hypertension. Similarly, 5% had a mean BP exceeding the ESC/ESH (respectively 13% had a mean BP exceeding the ACC/AHA) diagnostic criteria for hypertension, but no preexisting diagnostic code for hypertension or a prescribed antihypertensive medication during their hospital stay. CONCLUSIONS Large numbers of hospital inpatients have mean in-hospital BPs exceeding diagnostic thresholds for hypertension, with no evidence of diagnosis or treatment in the electronic record. Whether opportunistic screening for in-hospital high BP is a useful way of detecting people with undiagnosed hypertension needs evaluation.
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Affiliation(s)
- Adam Mahdi
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
| | - Laura C Armitage
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Lionel Tarassenko
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
- Sensyne Health, Oxford, UK
| | - Peter Watkinson
- Sensyne Health, Oxford, UK
- Nuffield Department of Clinical Neurosciences, University of Oxford, NIHR Biomedical Research Centre, Oxford University Hospitals NHS Trust, Oxford, UK
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12
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Nissen SE, Hutchinson HG, Wang TY, Ballantyne CM, Travis S, Morris M, Miller W, Hynson J, Wolski K, Ridker PM. Technology-Assisted Self-Selection of Candidates for Nonprescription Statin Therapy. J Am Coll Cardiol 2021; 78:1114-1123. [PMID: 34503680 DOI: 10.1016/j.jacc.2021.06.048] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/20/2021] [Accepted: 06/10/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Although statins reduce cardiovascular morbidity and mortality, only about one-half of eligible patients receive treatment. Safe and appropriate consumer access to statins could have a significant positive public health impact. OBJECTIVES This study compares the concordance between a participant and clinician assessment of eligibility for statin therapy using a technology-assisted approach. METHODS A total of 500 participants, 83 with limited literacy, completed an at-home Web-based application to assess appropriateness for treatment with rosuvastatin 5 mg. The Web application is designed to assess eligibility for a moderate-intensity statin based on current guidelines and deny access to individuals with contraindications to rosuvastatin. Subsequently, participants visited a research site where clinicians, blinded to the information the participant entered, performed an independent Web application assessment. The Web application is programmed for 1 of 3 rosuvastatin treatment outcomes: "OK to use," "not right for you," or "ask a doctor." The primary endpoint was the percent of participants whose self-selected eligibility for nonprescription rosuvastatin was concordant with clinician assessment. RESULTS For the primary endpoint, participant selection for statin therapy was concordant with clinician selection in 481 (96.2%) of 500 participants (95% confidence interval: 94.1%-97.7%), of whom 23 (4.6%) were deemed appropriate and 458 (91.6%) were deemed inappropriate for treatment. Discordance was due to incorrect self-selection ("OK to use") in 3 cases, incorrect rejection ("not right for you") in 14 cases and an incorrect "ask a doctor" outcome in 2 cases. CONCLUSIONS The use of a technology-assisted approach to consumer self-selection for statin therapy resulted in participant self-selection that showed substantial agreement with clinician selection.
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Affiliation(s)
- Steven E Nissen
- Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland Ohio, USA; Cleveland Clinic Coordinating Center for Clinical Research, Cleveland Clinic, Cleveland Ohio, USA.
| | | | - Tracy Y Wang
- Duke Clinical Research Institute, Duke University, Durham, North Carolina, USA
| | | | - Sara Travis
- Concentrics Research, Indianapolis, Indiana, USA
| | - Melanie Morris
- AstraZeneca BioPharmaceuticals, Wilmington, Delaware, USA
| | | | | | - Kathy Wolski
- Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland Ohio, USA; Cleveland Clinic Coordinating Center for Clinical Research, Cleveland Clinic, Cleveland Ohio, USA
| | - Paul M Ridker
- Center for Cardiovascular Disease Prevention, Harvard Medical School, Boston, Massachusetts, USA
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13
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Carlsen NV, Laursen SB, Schaffalitzky de Muckadell OB. Hypotension develops one to two hours before other symptoms in peptic ulcer rebleeding; a matched cohort study. Scand J Gastroenterol 2021; 56:1011-1016. [PMID: 34282993 DOI: 10.1080/00365521.2021.1948607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Rebleeding is a frequent complication of peptic ulcer bleeding (PUB) and is associated with increased mortality. Blood pressure and heart rate are two easy non-invasive measurements to evaluate the hemodynamics and therefore a standard observation during hospitalization. OBJECTIVE We aimed to investigate the dynamics of systolic blood pressure and heart rate up to time of peptic ulcer rebleeding. DESIGN Retrospective matched cohort study. Hemodynamics in patients with peptic ulcer rebleeding was compared to hemodynamics in a matched control group consisting of patients with PUB without rebleeding. Blood pressure and heart rate in the six hours up to diagnosis of rebleeding was compared with baseline in the case cohort as well as with the matched control group. RESULTS Thirty-eight patients with peptic ulcer rebleeding and 66 controls were included. Mean age was 75 years, 62% were males and 30-day mortality was 23%. Baseline systolic blood pressure in cases was 114 mmHg. Compared to baseline, we found significant decrease in systolic blood pressure two hours before rebleeding (4 mmHg; p = 0.041) and one hour before rebleeding (14 mmHg; p = 0.0002). Mean systolic blood pressure 30 min before rebleeding was 89 mmHg. No significant change was found in heart rate (p = 0.99). In the control group no change was found in systolic blood pressure or heart rate. CONCLUSION In patients with peptic ulcer rebleeding, hypotension develops 1-2 h before other symptoms of rebleeding. Thus, close monitoring of blood pressure is needed in order to ensure early identification of rebleeding in high-risk patients.
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Affiliation(s)
- Nikolaj Vestergaard Carlsen
- Department of Clinical Research, University of Southern Denmark, Odence, Denmark.,Department of Gastroenterology S, Odense University Hospital, Odence C, Denmark
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Kario K, Ito S, Itoh H, Rakugi H, Okuda Y, Yoshimura M, Yamakawa S. Effect of the Nonsteroidal Mineralocorticoid Receptor Blocker, Esaxerenone, on Nocturnal Hypertension: A Post Hoc Analysis of the ESAX-HTN Study. Am J Hypertens 2021; 34:540-551. [PMID: 33165570 PMCID: PMC8140658 DOI: 10.1093/ajh/hpaa155] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/27/2020] [Accepted: 10/02/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Nocturnal hypertension is an important phenotype of abnormal diurnal blood pressure (BP) variability and a known risk marker for target organ damage and cardiovascular events. This study aimed to assess the differential BP-lowering effects of esaxerenone vs. eplerenone on nocturnal BP in hypertensive patients with different nocturnal dipping patterns. METHODS This was a post hoc analysis of the "Esaxerenone (CS-3150) Compared to Eplerenone in Patients with Essential Hypertension" study (NCT02890173), which was a phase 3, multicenter, randomized, controlled, double-blind, parallel-group clinical study conducted in Japan. Ambulatory BP monitoring data were collected. RESULTS Patients (n = 1,001) were randomized to esaxerenone 2.5 mg/day (n = 331) or 5 mg/day (n = 338), or eplerenone 50 mg/day (n = 332). Reductions in nighttime systolic BP (95% confidence interval) were significantly greater with 2.5 and 5 mg/day esaxerenone vs. eplerenone (-2.6 [-5.0, -0.2] and -6.4 mm Hg [-8.8, -4.0], respectively). Esaxerenone significantly reduced nighttime BP from baseline compared with eplerenone in non-dippers with previously uncontrolled BP. In addition, esaxerenone did not markedly alter nighttime BP in extreme dipper patients. In the esaxerenone 5 mg/day group, esaxerenone-induced decreases in nighttime BP were greater than eplerenone-induced decreases in older patients. CONCLUSIONS Esaxerenone may be an effective treatment option for nocturnal hypertension, especially in older patients and those with a non-dipper pattern of nocturnal BP.
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Affiliation(s)
- Kazuomi Kario
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Shimotsuke, Tochigi, Japan
| | - Sadayoshi Ito
- Division of Nephrology, Endocrinology and Vascular Medicine, Department of Medicine, Tohoku University School of Medicine, Sendai, Miyagi, Japan
- Katta General Hospital, Shiroishi, Japan
| | - Hiroshi Itoh
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
| | - Hiromi Rakugi
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Japan
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15
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BaHammam AS, Alshahrani M, Aleissi SA, Olaish AH, Alhassoon MH, Shukr A. Blood pressure dipping during REM and non-REM sleep in patients with moderate to severe obstructive sleep apnea. Sci Rep 2021; 11:7990. [PMID: 33846490 PMCID: PMC8041780 DOI: 10.1038/s41598-021-87200-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 02/26/2021] [Indexed: 12/14/2022] Open
Abstract
A limited number of papers have addressed the association between non-dipping-blood pressure (BP) obstructive sleep apnea (OSA), and no study has assessed BP-dipping during rapid eye movement (REM) and non-REM sleep in OSA patients. This study sought to noninvasively assess BP-dipping during REM and non-REM (NREM)-sleep using a beat-by-beat measurement method (pulse-transit-time (PTT)). Thirty consecutive OSA patients (men = 50%) who had not been treated for OSA before and who had > 20-min of REM-sleep were included. During sleep, BP was indirectly determined via PTT. Patients were divided into dippers and non-dippers based on the average systolic-BP during REM and NREM-sleep. The studied group had a a median age of 50 (42–58.5) years and a body mass index of 33.8 (27.6–37.5) kg/m2. The median AHI of the study group was 32.6 (20.1–58.1) events/h (range: 7–124), and 89% of them had moderate-to-severe OSA. The prevalence of non-dippers during REM-sleep was 93.3%, and during NREM-sleep was 80%. During NREM sleep, non-dippers had a higher waist circumference and waist-hip-ratio, higher severity of OSA, longer-time spent with oxygen saturation < 90%, and a higher mean duration of apnea during REM and NREM-sleep. Severe OSA (AHI ≥ 30) was defined as an independent predictor of non-dipping BP during NREM sleep (OR = 19.5, CI: [1.299–292.75], p-value = 0.03). This short report demonstrated that BP-dipping occurs during REM and NREM-sleep in patients with moderate-to-severe OSA. There was a trend of more severe OSA among the non-dippers during NREM-sleep, and severe OSA was independently correlated with BP non-dipping during NREM sleep.
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Affiliation(s)
- Ahmed S BaHammam
- University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia. .,Strategic Technologies Program of the National Plan for Sciences and Technology and Innovation in The Kingdom of Saudi Arabia, Riyadh, Saudi Arabia.
| | - Mana Alshahrani
- University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Salih A Aleissi
- University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Awad H Olaish
- University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed H Alhassoon
- University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Afnan Shukr
- University Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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16
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Bassam A, Thacker J, Walter LM, Davey MJ, Nixon GM, Horne RS. Nocturnal dipping of heart rate is impaired in children with Down syndrome and sleep disordered breathing. Sleep Med 2021; 81:466-473. [PMID: 33872947 DOI: 10.1016/j.sleep.2021.03.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/10/2021] [Accepted: 03/16/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Children with Down syndrome (DS) are at increased risk for sleep disordered breathing (SDB), which can have adverse effects on the cardiovascular system. In adults with SDB, nocturnal dipping of heart rate (HR) and blood pressure (BP) is reduced, and this is associated with an increased risk of future cardiovascular events. We aimed to compare nocturnal dipping of HR and pulse transit time (PTT) (a surrogate inverse measure of BP change) in children with DS and SDB to those of typically developing (TD) children with and without SDB. METHODS 19 children with DS (3-18 years) were age and sex matched with 19 TD children without SDB (TD-) and with 19 TD children with matched severity of SDB (TD+). Nocturnal dipping was assessed as the percentage change in HR and PTT from wake before sleep onset to total sleep, N2, N3 and REM sleep across the night and to the first cycle of sleep. RESULTS Children with DS exhibited reduced nocturnal dipping of HR during total sleep, N2, N3 and REM sleep and increased PTT (reduced BP dipping) in N2 sleep. Fewer children with DS exhibited a greater than 10% fall in HR between wake and N2 or REM sleep compared to TD+ children. CONCLUSIONS Our findings demonstrate significantly reduced nocturnal dipping of HR in children with DS compared to TD children matched for SDB severity, suggesting SDB has a greater cardiovascular effect in these children. Further studies are required to fully understand the mechanisms involved and to assess if treatment of SDB improves nocturnal dipping.
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Affiliation(s)
- Ahmad Bassam
- Department of Paediatrics, Monash University, The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia
| | - Julie Thacker
- Department of Paediatrics, Monash University, The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia
| | - Lisa M Walter
- Department of Paediatrics, Monash University, The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia
| | - Margot J Davey
- Department of Paediatrics, Monash University, The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia; Department of Paediatrics, Monash University, Melbourne Children's Sleep Centre, Monash Children's Hospital, Melbourne, Victoria, Australia
| | - Gillian M Nixon
- Department of Paediatrics, Monash University, The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia; Department of Paediatrics, Monash University, Melbourne Children's Sleep Centre, Monash Children's Hospital, Melbourne, Victoria, Australia
| | - Rosemary Sc Horne
- Department of Paediatrics, Monash University, The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia.
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17
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MacIver S, Stout N, Ricci O. New considerations for the clinical efficacy of old and new topical glaucoma medications. Clin Exp Optom 2021; 104:350-366. [PMID: 33725467 DOI: 10.1080/08164622.2021.1877529] [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: 10/21/2022] Open
Abstract
Glaucoma is the most common form of irreversible blindness in the world. Lowering intraocular pressure (IOP) remains the only clinically established method of treatment to slow the progression of glaucoma. Primary open angle glaucoma is a disease of the optic nerve head and often is associated with changes to the trabecular meshwork that cause a reduction to aqueous humour outflow and an increase in intraocular pressure. Until recently, topical IOP lowering medication has been limited to the mechanisms of action of decreasing aqueous production and/or redirecting outflow to the unconventional uveoscleral outflow pathway. Both of these mechanisms neglect to treat or act on tissue that becomes altered from glaucoma. Latanoprostene-bunod 0.024%, a nitric-oxide donating prostanoid, netarsudil 0.02%, a potent Rho-associated protein kinase (ROCK) inhibitor and norepinephrine transporter inhibitor, and a once daily dosed fixed combination medication with netarsudil 0.02% and latanoprost 0.005% have recently come on the market. This paper will discuss and review the limitations to traditional IOP lowering glaucoma medications as well as the mechanism of actions and clinical efficacy of the new glaucoma medications. It will also discuss how the new class of glaucoma medications might help to overcome some known limitations in treatment and barriers to patient adherence.
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Affiliation(s)
- Sarah MacIver
- School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, Canada
| | - Nicole Stout
- Oklahoma College of Optometry, Northeastern State University, Tahlequah, OK, USA
| | - Olivia Ricci
- School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, Canada
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18
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Zhang D, Colson JC, Jin C, Becker BK, Rhoads MK, Pati P, Neder TH, King MA, Valcin JA, Tao B, Kasztan M, Paul JR, Bailey SM, Pollock JS, Gamble KL, Pollock DM. Timing of Food Intake Drives the Circadian Rhythm of Blood Pressure. FUNCTION (OXFORD, ENGLAND) 2020; 2:zqaa034. [PMID: 33415319 PMCID: PMC7772288 DOI: 10.1093/function/zqaa034] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 01/10/2023]
Abstract
Timing of food intake has become a critical factor in determining overall cardiometabolic health. We hypothesized that timing of food intake entrains circadian rhythms of blood pressure (BP) and renal excretion in mice. Male C57BL/6J mice were fed ad libitum or reverse feeding (RF) where food was available at all times of day or only available during the 12-h lights-on period, respectively. Mice eating ad libitum had a significantly higher mean arterial pressure (MAP) during lights-off compared to lights-on (113 ± 2 mmHg vs 100 ± 2 mmHg, respectively; P < 0.0001); however, RF for 6 days inverted the diurnal rhythm of MAP (99 ± 3 vs 110 ± 3 mmHg, respectively; P < 0.0001). In contrast to MAP, diurnal rhythms of urine volume and sodium excretion remained intact after RF. Male Bmal1 knockout mice (Bmal1KO) underwent the same feeding protocol. As previously reported, Bmal1KO mice did not exhibit a diurnal MAP rhythm during ad libitum feeding (95 ± 1 mmHg vs 92 ± 3 mmHg, lights-off vs lights-on; P > 0.05); however, RF induced a diurnal rhythm of MAP (79 ± 3 mmHg vs 95 ± 2 mmHg, lights-off vs lights-on phase; P < 0.01). Transgenic PERIOD2::LUCIFERASE knock-in mice were used to assess the rhythm of the clock protein PERIOD2 in ex vivo tissue cultures. The timing of the PER2::LUC rhythm in the renal cortex and suprachiasmatic nucleus was not affected by RF; however, RF induced significant phase shifts in the liver, renal inner medulla, and adrenal gland. In conclusion, the timing of food intake controls BP rhythms in mice independent of Bmal1, urine volume, or sodium excretion.
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Affiliation(s)
| | | | - Chunhua Jin
- Division of Nephrology, Department of Medicine
| | | | | | | | | | | | - Jennifer A Valcin
- Division of Molecular and Cellular Pathology, Department of Pathology
| | - Binli Tao
- Division of Nephrology, Department of Medicine
| | | | - Jodi R Paul
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Shannon M Bailey
- Division of Molecular and Cellular Pathology, Department of Pathology
| | | | - Karen L Gamble
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - David M Pollock
- Division of Nephrology, Department of Medicine,Address correspondence to D.M.P. (e-mail: )
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19
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Efficacy of single-dose cholecalciferol in the blood pressure of patients with type 2 diabetes, hypertension and hypovitaminoses D. Sci Rep 2020; 10:19611. [PMID: 33184328 PMCID: PMC7665034 DOI: 10.1038/s41598-020-76646-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 10/21/2020] [Indexed: 12/29/2022] Open
Abstract
Observational and experimental data reinforce the concept that vitamin D is associated with the pathogenesis of arterial hypertension. We investigated the effect of a single dose of 100,000 IU of cholecalciferol, in office blood pressure (BP), and 24-h ambulatory blood pressure monitoring (ABPM) in patients with type 2 diabetes mellitus (DM), hypertension, and hypovitaminosis D. Forty-three patients were randomized to a placebo or cholecalciferol group. BP was assessed by office measurements and 24-h ABPM, before and after intervention. At week 8, a greater decrease in median ABPM values was observed in cholecalciferol supplementation than in the placebo group for systolic 24-h (− 7.5 vs. − 1; P = 0.02), systolic daytime (− 7 vs. − 1; P = 0.007), systolic nighttime (− 7.0 vs. 3; P = 0.009), diastolic 24-h (− 3.5 vs. − 1; P = 0.037), and daytime DBP (− 5 vs. 0; P = 0.01). Office DBP was also reduced after vitamin D supplementation. A single dose of vitamin D3 improves BP in patients with type 2 diabetes, hypertension, and vitamin D insufficiency, regardless of vitamin D normalization. Vitamin D supplementation could be a valuable tool to treat patients with type 2 DM, hypertension, and hypovitaminosis D. Trial registration: Clinicaltrials.gov NCT 02204527.
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20
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Secondary hyperparathyroidism is associated with postpartum blood pressure in preeclamptic women and normal pregnancies. J Hypertens 2020; 39:563-572. [PMID: 33031174 DOI: 10.1097/hjh.0000000000002638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Preeclampsia has been associated with features of secondary hyperparathyroidism. In this study, we examine the relationships of calcium metabolism with blood pressure (BP) in preeclamptic women and in a control group of normal (NORM) pregnancies in the postpartum. METHODS Sixty-three consecutive preeclamptic women (age 35 ± 6 years) were studied 4 weeks after delivery. We collected clinical and lab information on pregnancy and neonates and measured plasma and urinary calcium and phosphate, plasma parathyroid hormone (PTH) and 25-hydroxy vitamin D [25(OH)D], and performed 24-h ambulatory BP monitoring. BP and calcium metabolism of 51 preeclamptic were compared with 17 NORM pregnant women that matched for age, race, and postpartum BMI. RESULTS 25(OH)D deficiency (<10 ng/ml) was found in 3% of preeclamptic women, insufficiency (10-30 ng/ml) in 67%, and NORM values (31-100 ng/ml) in the remaining 30%. Elevated plasma PTH (≥79 pg/ml) was found in 24% of preeclamptic women who had 25(OH)D plasma levels of 21.4 ± 8.3 ng/ml. In these women, PTH levels was independently associated with 24-h SBP and DBP and daytime and night-time DBP. Prevalence of nondippers and reverse dippers was elevated (75% and 33%, respectively). No associations between calcium metabolism and neonates' characteristics of preeclamptic women were observed. Prevalence of vitamin D deficiency and insufficiency and of elevated plasma PTH levels were comparable in matched groups. Considering preeclamptic women and matched controls as a whole group, office SBP and DBP levels were associated with PTH independently of preeclampsia and other confounders. CONCLUSION Features of secondary hyperparathyroidism are common in the postpartum. Preeclampsia and increased PTH levels were both independent factors associated with increased BP after delivery, and both might affect the future cardiovascular risk of these women.
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Mahfouz RA, El-Shetry M, Frere A, Safwat M. Blood Pressure Variability and Atrial Fibrillation in Patients with Acute ST Segment Elevation Myocardial Infarction: The Relation with Left Atrial Electromechanical Delay - A 1-Year Follow-Up Study. Pulse (Basel) 2020; 8:57-65. [PMID: 32999879 DOI: 10.1159/000507792] [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: 02/26/2020] [Accepted: 04/05/2020] [Indexed: 11/19/2022] Open
Abstract
Purpose To investigate the association between 24-h blood pressure variability (BPV) and atrial electromechanical delay (EMD) in patients with ST segment elevation myocardial infarction (STEMI) who developed new-onset atrial fibrillation (NOAF). Materials and Methods A total of 175 STEMI patients (age 56.6 ± 10.5 years) who underwent primary percutaneous coronary intervention were subjected to in-hospital 24-h ambulatory BP monitoring, comprehensive echocardiography, and assessment of atrial EMD. The parameters of BPV analyzed were: (a) 24-h standard deviation (SD), (b) the coefficient of variation, and (c) the average of the daytime and nighttime SDs weighted for the duration of the daytime and nighttime interval (SDdn ). Results Based on the median of BPV index (SDdn) = 9.5 mm Hg of all participants, patients were stratified into low and high variability groups (SDdn: 7.1 ± 1.5 vs.13.5 ± 2.9; p < 0.001). Of the 175 patients with STEMI, 29 (16.7%) patients developed NOAF; 26 (28.9%) were in the high variability group and 3.5% were in the low variability group (p < 0.001). Echocardiographic data showed that the left atrial volume index (p < 0.01) and E/e' ratio (p < 0.001) were significantly higher in patients with high BPV. Inter and intra-atrial EMD were significantly increased in the high variability group compared to the low variability group (p < 0.001). With multiple linear analysis, there was significant correlation between SDdn and intra-left atrial and inter-atrial EMD (p < 0.001 and <0.01, respectively). Cox regression analysis revealed that SDdn and intra-atrial EMD were independent predictors for NOAF in patients with STEMI (OR = 3.75 and 02.72, respectively; p < 0.001). ROC analysis revealed that SDdn ≥12.8 was the optimal cut-off value for predicting NOAF during follow-up. Conclusions Short-term BPV was associated with NOAF during the 1-year follow-up in patients with STEMI. In addition, BPV was correlated significantly with atrial EMD. Herein, BPV was predicted to be an early predictor of NOAF in patients with STEMI.
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Affiliation(s)
- Ragab A Mahfouz
- Cardiology Department, Zagazig University Hospital, Zagazig, Egypt
| | | | | | - Mohamed Safwat
- Cardiology Department, Zagazig University Hospital, Zagazig, Egypt
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22
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Souza DDSMD, Oliveira CLBD, Maciel BG, Figueiredo MT, Bianco HT, Fonseca FAH, Izar MC, Póvoa RMS. Absence of Nocturnal Fall in Blood Pressure Detected by Ambulatory Blood Pressure Monitoring in Acute Chagas Disease Patients with Oral Infection. Arq Bras Cardiol 2020; 114:711-715. [PMID: 32491012 DOI: 10.36660/abc.20190143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 06/23/2020] [Indexed: 11/18/2022] Open
Abstract
Background The involvement of the autonomic nervous system is one of the mechanisms proposed to explain the progression of myocardial lesion in Chagas disease. Evidences have shown changes in sympathetic and parasympathetic nervous system since the acute phase of the disease, and studies to clarify the pathophysiological and prognostic value of these changes are needed. Objetives To assess blood pressure profile by ambulatory blood pressure monitoring (ABPM) in normotensive patients with acute Chagas disease (ACD) without apparent cardiac damage, and the influence of the infection on nocturnal blood pressure fall. Methods ABPM was performed with 54 patients with ACD and a control group composed of 54 age- and sex-matched normotensive individuals. The alpha level of significance (type I error rate) was set at 5%. Results In the total of 54 patients, 74.0% did not show nocturnal fall in systolic blood pressure, 53.7% did not show nocturnal fall in diastolic blood pressure, and lack of both nocturnal fall in SBP and DBP was observed in 51.8% (*p<0.05). In 12.9% of patients, there was an increase in SBP and in 18.5% increase in DBP (p<0.05). Conclusions In patients with acute Chagas disease, a significant absence of the physiological fall in both systolic and diastolic blood pressure was observed during sleep, and some of the patients showed nocturnal increase in these parameters. These findings suggest autonomic changes in the acute phase of Chagas disease. (Arq Bras Cardiol. 2020; 114(4):711-715).
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Affiliation(s)
| | | | | | | | - Henrique Tria Bianco
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - Francisco A H Fonseca
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - Maria Cristina Izar
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - Rui M S Póvoa
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
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Flórez-García V, Rojas-Bernal LÁ, Bareño-Silva J. Depression and sleep disorders related to hypertension: A cross-sectional study in Medellín, Colombia. REVISTA COLOMBIANA DE PSIQUIATRIA (ENGLISH ED.) 2020; 49:109-115. [PMID: 32446417 DOI: 10.1016/j.rcp.2018.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 04/25/2018] [Accepted: 05/28/2018] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Psychosocial factors have been shown to be potentiators and triggers of cardiovascular diseases such as hypertension. The purpose of the study is to explore the relationship between psychosocial factors and the presence of hypertension in a random population sample in the city of Medellin. METHODS Observational cross-sectional study with an analytical approach. The endpoint (hypertension) was contrasted with the psychosocial and sociodemographic endpoints by means of a bivariate analysis, and later a multivariate logistic regression analysis was carried out. RESULTS After adjusting for age, gender and stressful life events, depression (OR=1.65; 95% CI: 1.13-2.41) and sleep disorders (OR=1.41; 95% CI: 1.00-1.98) were found to be psychosocial factors associated with hypertension. CONCLUSIONS Depression and sleep disorders are related to hypertension. In Colombia there are studies that correlate psychosocial factors such as depression with hypertension; however, the impact of sleep disorders on the population is unknown.
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Affiliation(s)
- Víctor Flórez-García
- Departamento de Salud Pública, Universidad del Norte, Barranquilla, Colombia; Grupo de Investigación en Salud Mental, Facultad de Medicina, Universidad CES, Medellín, Colombia.
| | - Luz Ángela Rojas-Bernal
- Grupo de Investigación en Salud Mental, Facultad de Medicina, Universidad CES, Medellín, Colombia
| | - José Bareño-Silva
- Grupo de Investigación en Salud Mental, Facultad de Medicina, Universidad CES, Medellín, Colombia
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Staats R, Barros I, Fernandes D, Grencho D, Reis C, Matos F, Valença J, Marôco J, de Almeida AB, Bárbara C. The Importance of Sleep Fragmentation on the Hemodynamic Dipping in Obstructive Sleep Apnea Patients. Front Physiol 2020; 11:104. [PMID: 32231580 PMCID: PMC7082422 DOI: 10.3389/fphys.2020.00104] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/28/2020] [Indexed: 12/19/2022] Open
Abstract
Introduction Obstructive sleep apnea (OSA) has been associated with non-dipping blood pressure (BP). The precise mechanism is still under investigation, but repetitive oxygen desaturation and arousal induced sleep fragmentation are considered the main contributors. Methods We analyzed beat-to-beat measurements of hemodynamic parameters (HPs) during a 25-min period of wake–sleep transition. Differences in the mean HP values for heart rate (HR), systolic BP (SBP), and stroke volume (SV) during wake and sleep and their standard deviations (SDs) were compared between 34 controls (C) and 22 OSA patients. The Student’s t-test for independent samples and the effect size by Cohen’s d (d) were calculated. HP evolution was investigated by plotting the measured HP values against each consecutive pulse wave. After a simple regression analysis, the calculated coefficient beta (SCB) was used to indicate the HP evolution. We furthermore explored by a hierarchical block regression which variables increased the prediction for the SCB: model 1 BMI and age, model 2 + apnea/hypopnea index (AHI), and model 3 + arousal index (AI). Results Between the two groups, the SBP increased in OSA and decreased in C resulting in a significant difference (p = 0.001; d = 0.92). The SV demonstrated a similar development (p = 0.047; d = 0.56). The wake/sleep variation of the HP measured by the SD was higher in the OSA group—HR: p < 0.001; d = 1.2; SBP: p = 0.001; d = 0.94; and SV: p = 0.005; d = 0.82. The hierarchical regression analysis of the SCB demonstrated in SBP that the addition of AI to AHI resulted in ΔR2: +0.163 and ΔF + 13.257 (p = 0.001) and for SV ΔR2: +0.07 and ΔF 4.83 (p = 0.003). The AI but not the AHI remained statistically significant in the regression analysis model 3—SBP: β = 0.717, p = 0.001; SV: β = 0.469, p = 0.033. Conclusion In this study, we demonstrated that in OSA, the physiological dipping in SBP and SV decreased, and the variation of all investigated parameters increased. Hierarchical regression analysis indicates that the addition of the AI to BMI, age, and AHI increases the prediction of the HP evolution following sleep onset for both SBP and SV and may be the most important variable.
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Affiliation(s)
- Richard Staats
- Departamento do Tórax, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal.,Instituto de Saúde Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Inês Barros
- Departamento do Tórax, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - Dina Fernandes
- Departamento do Tórax, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - Dina Grencho
- Departamento do Tórax, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - Cátia Reis
- Instituto de Saúde Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,CENC - Sleep Medicine Center, Lisbon, Portugal
| | - Filipa Matos
- Departamento do Tórax, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - João Valença
- Departamento do Tórax, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal.,Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - João Marôco
- William James Centre for Research, ISPA-IU, Lisbon, Portugal
| | | | - Cristina Bárbara
- Departamento do Tórax, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal.,Instituto de Saúde Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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Mahdi A, Watkinson P, McManus RJ, Tarassenko L. Circadian Blood Pressure Variations Computed From 1.7 Million Measurements in an Acute Hospital Setting. Am J Hypertens 2019; 32:1154-1161. [PMID: 31418774 PMCID: PMC7427624 DOI: 10.1093/ajh/hpz130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/14/2019] [Accepted: 08/09/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Knowledge of the circadian blood pressure (BP) variations in the acute hospital setting is very limited. METHODS This is a retrospective analysis of BP data for in-hospital patients stratified by age and sex. We used data collected with the help of a standardized electronic health record system between March 2014 and April 2018 on the adult general wards in 4 acute hospitals in Oxford, UK. RESULTS A total of 41,455 unique patient admissions with 1.7 million sets of vital-sign measurements have been included in the study. The typical 24-hour systolic BP profile (dipping pattern during sleep followed by a gradual increase during the day) was only seen in the younger age groups (up to 40–49 for men and 30–39 for women). For older age groups, there was a late nocturnal rise in systolic BP, the amplitude of which increased with age. The late nocturnal BP rise above the age of 50 was seen whether or not the patient was treated for or previously identified with hypertension. CONCLUSION Hospitalized patients’ circadian patterns of BP largely mirror those found in the community. High-quality hospital data may allow for the identification of patients at significant cardiovascular risk through either opportunistic screening or systematic screening.
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Affiliation(s)
- Adam Mahdi
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
| | - Peter Watkinson
- Nuffield Department of Clinical Neurosciences, Oxford University Hospitals NHS Trust, Oxford, UK
- Sensyne Health, Schrödinger Building, Heatley Road, Oxford Science Park, Oxford, UK
| | - Richard J McManus
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Lionel Tarassenko
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
- Sensyne Health, Schrödinger Building, Heatley Road, Oxford Science Park, Oxford, UK
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Sheybani A, Scott R, Samuelson TW, Kahook MY, Bettis DI, Ahmed IIK, Stephens JD, Kent D, Ferguson TJ, Herndon LW. Open-Angle Glaucoma: Burden of Illness, Current Therapies, and the Management of Nocturnal IOP Variation. Ophthalmol Ther 2019; 9:1-14. [PMID: 31732872 PMCID: PMC7054505 DOI: 10.1007/s40123-019-00222-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Indexed: 12/19/2022] Open
Abstract
Glaucoma is a chronic, debilitating disease and a leading cause of global blindness. Despite treatment efforts, 10% of patients demonstrate loss of vision. In the US, > 80% of glaucoma cases are classified as open-angle glaucoma (OAG), with primary open-angle (POAG) being the most common. Although there has been tremendous innovation in the surgical treatment of glaucoma as of late, two clinical variants of OAG, normal-tension glaucoma (NTG) and severe POAG, are especially challenging for providers because patients with access to care and excellent treatment options may progress despite achieving a “target” intraocular pressure value. Additionally, recent research has highlighted the importance of nocturnal IOP control in avoiding glaucomatous disease progression. There remains an unmet need for new treatment options that can effectively treat NTG and severe POAG patients, irrespective of baseline IOP, while overcoming adherence limitations of current pharmacotherapies, demonstrating a robust safety profile, and more effectively controlling nocturnal IOP. Funding The Rapid Service Fees were funded by the corresponding author, Tanner J. Ferguson, MD.
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Affiliation(s)
- Arsham Sheybani
- Washington University School of Medicine, St. Louis, MO, USA
| | | | | | - Malik Y Kahook
- Department of Ophthalmology, University of Colorado Health Eye Center, Aurora, CO, USA
| | - Daniel I Bettis
- Department of Ophthalmology, Carver College of Medicine, Iowa City, IA, USA
| | | | | | | | | | - Leon W Herndon
- Duke University School of Medicine, Duke Eye Center, Durham, NC, USA
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Samuelson TW, Ferguson TJ, Radcliffe NM, Lewis R, Schweitzer J, Swan R, Berdahl JP. 8 hrs Safety Evaluation Of A Multi-Pressure Dial In Eyes With Glaucoma: Prospective, Open-Label, Randomized Study. Clin Ophthalmol 2019; 13:1947-1953. [PMID: 31631962 PMCID: PMC6778771 DOI: 10.2147/opth.s217736] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 09/13/2019] [Indexed: 11/17/2022] Open
Abstract
Purpose To investigate the safety and tolerability of the multi-pressure dial with a continuous 8-hr duration in subjects with open-angle glaucoma. Design Prospective, controlled open-label, randomized, single site study. Subjects Twenty eyes of 10 subjects with open-angle glaucoma were fitted with a multi-pressure dial and randomized to negative pressure application of −10 mmHg in one eye for 8 (continuous) hours and ambient atmospheric pressure in the contralateral eye. Methods Main safety outcome measures include best-corrected visual acuity (BCVA), intraocular pressure (IOP) changes from baseline after negative pressure application, slit lamp and dilated fundus exam findings, and rate of adverse events. Subjective assessments were administered both hourly during the 8-hr study period and immediately following the study period. Results There were no statistically significant changes in IOP, BCVA or TBUT immediately following the 8-hr study period or at the 1-week follow-up visit. Patient-reported tolerability was favorable with a mean response of 1.8 ± 0.4 (scale → 1=best, 10 = worst). Subjects also reported positive interest in the MPD as a glaucoma therapy with a mean response of 1.8 ± 0.5 (scale → 1=best, 10 = worst). One adverse event was reported (headache) and resolved at conclusion of the Day 0 visit. Conclusion The MPD demonstrated favorable safety with key parameters remaining stable after an 8-hr wear with negative pressure. Negative pressure application through the MPD was well tolerated by subjects enrolled in the study. The favorable findings demonstrate the safety of sustained delivery of negative pressure over a continuous, uninterrupted 8-hr duration.
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Affiliation(s)
| | | | - Nathan M Radcliffe
- Department of Ophthalmology, New York Eye and Ear Infirmary of Mount Sinai, New York, NY, USA
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28
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Sleep disorders, nocturnal blood pressure, and cardiovascular risk: A translational perspective. Auton Neurosci 2019; 218:31-42. [DOI: 10.1016/j.autneu.2019.02.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 02/16/2019] [Accepted: 02/21/2019] [Indexed: 12/12/2022]
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Ackland GL, Brudney CS, Cecconi M, Ince C, Irwin MG, Lacey J, Pinsky MR, Grocott MPW, Mythen MG, Edwards MR, Miller TE, Miller TE, Mythen MG, Grocott MPW, Edwards MR, Ackland GL, Brudney CS, Cecconi M, Ince C, Irwin MG, Lacey J, Pinsky MR, Sanders R, Hughes F, Bader A, Thompson A, Hoeft A, Williams D, Shaw AD, Sessler DI, Aronson S, Berry C, Gan TJ, Kellum J, Plumb J, Bloomstone J, McEvoy MD, Thacker JK, Gupta R, Koepke E, Feldheiser A, Levett D, Michard F, Hamilton M. Perioperative Quality Initiative consensus statement on the physiology of arterial blood pressure control in perioperative medicine. Br J Anaesth 2019; 122:542-551. [DOI: 10.1016/j.bja.2019.01.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 12/10/2018] [Accepted: 01/02/2019] [Indexed: 01/19/2023] Open
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Abstract
PURPOSE OF REVIEW This review aims to summarize and discuss the relationship between outpatient clinic and ambulatory blood pressure (BP) measurements and cardiovascular morbidity and mortality. RECENT FINDINGS Contemporary clinical practice guidelines worldwide recommend ambulatory blood pressure monitoring (ABPM) to confirm the diagnosis of hypertension. Recent epidemiological studies and systematic reviews showed ABPM predicts cardiovascular events and mortality independent of clinic BP. Ambulatory BP appears to be prognostically superior to clinic BP. ABPM characterizes BP phenotypes that would not have otherwise identified with clinic BP measurement only. Identification of white coat hypertension, which carries a prognosis almost similar to normotension, and masked hypertension, which carries a prognosis almost similar to sustained hypertension, can be accomplished only by ABPM. Randomize controlled trials to assess the cardiovascular effects of hypertensive patients managed with ABPM vs. clinic BP measurement and cost-effective studies of ABPM are warranted.
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31
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Shin SH, Jang JH, Baek YS, Kwon SW, Park SD, Woo SI, Kim DH, Kwan J. Relation of blood pressure variability to left ventricular function and arterial stiffness in hypertensive patients. Singapore Med J 2019; 60:427-431. [PMID: 30854570 DOI: 10.11622/smedj.2019030] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Variability of blood pressure (BP) has been reported to be related to worse cardiovascular outcomes. We examined the impact of daytime systolic BP variability on left ventricular (LV) function and arterial stiffness in hypertensive patients. METHODS Ambulatory BP monitoring (ABPM) and echocardiography were performed in 116 hypertensive patients. We assessed BP variability as standard deviations of daytime systolic BP on 24-hour ABPM. Conventional echocardiographic parameters, area strain and three-dimensional diastolic index (3D-DI) using 3D speckle tracking were measured. Arterial stiffness was evaluated by acquiring pulse wave velocity (PWV) and augmentation index. RESULTS Patients with higher BP variability showed significantly increased left ventricular mass index (LVMI) and late mitral inflow velocity, as well as decreased E/A (early mitral inflow velocity/late mitral inflow velocity) ratio, area strain and 3D-DI than those with lower BP variability (LVMI: p = 0.02; A velocity: p < 0.001; E/A ratio: p < 0.001; area strain: p = 0.02; 3D-DI: p = 0.04). In addition, increased BP variability was associated with higher PWV and augmentation index (p < 0.001). Even among patients whose BP was well controlled, BP variability was related to LV mass, diastolic dysfunction and arterial stiffness. CONCLUSION Increased BP variability was associated with LV mass and dysfunction, as well as arterial stiffness, suggesting that BP variability may be an important determinant of target organ damage in hypertensive patients.
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Affiliation(s)
- Sung-Hee Shin
- Division of Cardiology, Inha University College of Medicine, Incheon, South Korea
| | - Ji-Hoon Jang
- Division of Cardiology, Inha University College of Medicine, Incheon, South Korea
| | - Yong-Soo Baek
- Division of Cardiology, Inha University College of Medicine, Incheon, South Korea
| | - Sung-Woo Kwon
- Division of Cardiology, Inha University College of Medicine, Incheon, South Korea
| | - Sang-Don Park
- Division of Cardiology, Inha University College of Medicine, Incheon, South Korea
| | - Seong-Ill Woo
- Division of Cardiology, Inha University College of Medicine, Incheon, South Korea
| | - Dae-Hyeok Kim
- Division of Cardiology, Inha University College of Medicine, Incheon, South Korea
| | - Jun Kwan
- Division of Cardiology, Inha University College of Medicine, Incheon, South Korea
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Becker BK, Zhang D, Soliman R, Pollock DM. Autonomic nerves and circadian control of renal function. Auton Neurosci 2019; 217:58-65. [PMID: 30704976 PMCID: PMC6415626 DOI: 10.1016/j.autneu.2019.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/07/2019] [Accepted: 01/09/2019] [Indexed: 12/12/2022]
Abstract
Cardiovascular and renal physiology follow strong circadian rhythms. For instance, renal excretion of solutes and water is higher during the active period compared to the inactive period, and blood pressure peaks early in the beginning of the active period of both diurnal and nocturnal animals. The control of these rhythms is largely dependent on the expression of clock genes both in the central nervous system and within peripheral organs themselves. Although it is understood that the central and peripheral clocks interact and communicate, few studies have explored the specific mechanism by which various organ systems within the body are coordinated to control physiological processes. The renal sympathetic nervous innervation has long been known to have profound effects on renal function, and because the sympathetic nervous system follows strong circadian rhythms, it is likely that autonomic control of the kidney plays an integral role in modulating renal circadian function. This review highlights studies that provide insight into this interaction, discusses areas lacking clarity, and suggests the potential for future work to explore the role of renal autonomics in areas such as blood pressure control and chronic kidney disease.
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Affiliation(s)
- Bryan K Becker
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, United States of America
| | - Dingguo Zhang
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, United States of America
| | - Reham Soliman
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, United States of America
| | - David M Pollock
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, United States of America.
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Booth JN, Anstey DE, Bello NA, Jaeger BC, Pugliese DN, Thomas SJ, Deng L, Shikany JM, Lloyd‐Jones D, Schwartz JE, Lewis CE, Shimbo D, Muntner P. Race and sex differences in asleep blood pressure: The Coronary Artery Risk Development in Young Adults (CARDIA) study. J Clin Hypertens (Greenwich) 2019; 21:184-192. [PMID: 30719843 PMCID: PMC6375074 DOI: 10.1111/jch.13474] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/15/2018] [Accepted: 10/30/2018] [Indexed: 01/02/2023]
Abstract
Nocturnal hypertension and non-dipping blood pressure are each associated with increased risk of cardiovascular disease. We determined differences in nocturnal hypertension and non-dipping systolic/diastolic blood pressure among black and white men and women who underwent 24-hour ambulatory blood pressure monitoring at the Coronary Artery Risk Development in Young Adults study Year 30 Exam in 2015-2016. Asleep and awake periods were determined from actigraphy complemented by sleep diaries. Nocturnal hypertension was defined as mean asleep systolic/diastolic blood pressure ≥ 120/70 mm Hg. Non-dipping systolic and diastolic blood pressure, separately, were defined as a decline in awake-to-asleep blood pressure < 10%. Among 767 participants, the prevalence of nocturnal hypertension was 18.4% and 44.4% in white and black women, respectively, and 36.4% and 59.9% in white and black men, respectively. After multivariable adjustment and compared with white women, the prevalence ratio (95% confidence interval) for nocturnal hypertension was 1.65 (1.18-2.32) for black women, 1.63 (1.14-2.33) for white men, and 2.01 (1.43-2.82) for black men. The prevalence of non-dipping systolic blood pressure was 21.5% and 41.0% in white and black women, respectively, and 20.2% and 37.9% in white and black men, respectively. Compared with white women, the multivariable-adjusted prevalence ratio (95% confidence interval) for non-dipping systolic blood pressure was 1.66 (1.18-2.32), 0.91 (0.58-1.42) and 1.66 (1.15-2.39) among black women, white men, and black men, respectively. Non-dipping diastolic blood pressure did not differ by race-sex groups following multivariable adjustment. In conclusion, black women and men have a high prevalence of nocturnal hypertension and non-dipping systolic blood pressure.
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Affiliation(s)
- John N. Booth
- Department of EpidemiologyUniversity of Alabama at BirminghamBirminghamAlabama
| | | | | | - Byron C. Jaeger
- Department of BiostatisticsUniversity of Alabama at BirminghamBirminghamAlabama
| | | | | | - Luqin Deng
- Department of EpidemiologyUniversity of Alabama at BirminghamBirminghamAlabama
| | - James M. Shikany
- Division of Preventive MedicineUniversity of Alabama at BirminghamBirminghamAlabama
| | | | - Joseph E. Schwartz
- Department of MedicineColumbia UniversityNew YorkNew York
- Department of PsychiatryStony Brook UniversityNew YorkNew York
| | - Cora E. Lewis
- Department of EpidemiologyUniversity of Alabama at BirminghamBirminghamAlabama
| | - Daichi Shimbo
- Department of MedicineColumbia UniversityNew YorkNew York
| | - Paul Muntner
- Department of EpidemiologyUniversity of Alabama at BirminghamBirminghamAlabama
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Kolonko A, Bartmańska M, Słabiak-Błaż N, Kuczera P, Kujawa-Szewieczek A, Ficek R, Owczarek AJ, Chudek J, Więcek A. Arterial stiffness but not endothelial dysfunction is associated with multidrug antihypertensive therapy and nondipper blood pressure pattern in kidney transplant recipients. Medicine (Baltimore) 2018; 97:e11870. [PMID: 30200072 PMCID: PMC6133533 DOI: 10.1097/md.0000000000011870] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Vascular injury related to chronic kidney disease results in increased arterial stiffness and endothelial dysfunction which may affect arterial blood pressure (BP) and influence patient and graft survival in kidney transplant recipients (KTRs).This cross-sectional study aims to elucidate the relationship between the above-mentioned measures of vascular damage and effectiveness of antihypertensive treatment in KTR.One hundred forty-five KTRs 7.6 ± 2.7 years after transplantation were enrolled in our study. Pulse wave velocity (PWV), flow-mediated dilation (FMD), and nitroglycerin-mediated dilation (NMD) were measured, and 24-hour ambulatory BP monitoring was performed.Overall, there were 62 patients with well-controlled or borderline BP and 83 subjects who did not achieve target BP despite antihypertensive treatment. Patients with suboptimal BP control were characterized by greater PWV (median 9.6/interquartile range: 3.9 vs 8.0/3.3 m/s, P = .002), but borderline lower FMD (8.4% ± 5.0% vs 9.9% ± 5.7%; P = .09) as compared with the group with better BP control. When patients were allocated to subgroups based on the number of current antihypertensive medications, no differences in FMD and NMD were found. However, a significant trend was observed for higher PWV values and decreased proportion of dippers along with the increasing number of drugs. PWV, diabetes, and total cholesterol level, but not FMD or NMD, were explanatory variables for systolic BP in multivariate analysis.Arterial stiffness but not endothelial dysfunction is associated with suboptimal BP control in stable KTRs. Less efficient antihypertensive treatment appears to be caused by inadequate control of nocturnal BP.
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Affiliation(s)
- Aureliusz Kolonko
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia
| | - Magdalena Bartmańska
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia
| | - Natalia Słabiak-Błaż
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia
| | - Piotr Kuczera
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia
| | - Agata Kujawa-Szewieczek
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia
| | - Rafał Ficek
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia
| | - Aleksander J. Owczarek
- Department of Statistics, Department of Instrumental Analysis, School of Pharmacy With the Division of Laboratory Medicine in Sosnowiec
| | - Jerzy Chudek
- Department of Internal Medicine and Oncological Chemotherapy, Medical University of Silesia, Katowice, Poland
| | - Andrzej Więcek
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia
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Ambulatory blood pressure variability increases over a 19-year follow-up in a clinic on a solitary island. Blood Press Monit 2018; 23:283-287. [PMID: 30048257 DOI: 10.1097/mbp.0000000000000343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study investigated the changes of ambulatory blood pressure (ABP) profiles on the same participants over a 19-year follow-up. PARTICIPANTS AND METHODS This is a longitudinal study. We conducted 24-h ABP monitoring at baseline in November 1997 and at follow-up in November 2016 for the same participants who were outpatients in a solitary island clinic. To estimate ambulatory blood pressure variability (ABPV), SD, coefficient of variation, and average real variability of ABP were calculated. ABP levels and ABPV at baseline and follow-up were compared using paired t-test. RESULTS A total of 35 participants were recruited at follow-up (79.3±6.7 years at follow-up). Mean systolic blood pressure levels in 24-h, daytime, and night-time did not change significantly. However, ABPV of systolic/diastolic blood pressure in 24-h and daytime increased at follow-up compared with baseline (P<0.01 in all variables: SD, coefficient of variation, and average real variability), whereas ABPV in night-time did not change significantly. CONCLUSION Our observations suggested that 24-h and daytime ABPV increase with aging in community-dwelling elderly people.
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Takayama M, Omori S, Iwasaki K, Shiomi E, Takata R, Sugimura J, Abe T, Obara W. Relationship between nocturnal polyuria and non-dipping blood pressure in male patients with lower urinary tract symptoms. Low Urin Tract Symptoms 2018; 11:O98-O102. [PMID: 29845738 DOI: 10.1111/luts.12225] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 04/03/2018] [Accepted: 04/10/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The aim of the present study was to examine factors of nocturnal polyuria and blood pressure variability in male patients with lower urinary tract symptoms (LUTS) who were treated. METHODS Two hundred and forty-two male patients with LUTS who were treated recorded frequency volume charts. We investigated their urinary condition and characteristics, medical history, and medications. Thirty-four of these patients underwent ambulatory blood pressure monitoring (ABPM) for 24 hours to evaluate blood pressure variability. RESULTS In the present study, 194 patients (80.2%) had nocturia and 136 (56.2%) had nocturnal polyuria (NP). Among patients with nocturia (≥2 voids/night), 130 (67.0%) had nocturnal polyuria, and 26 of those with nocturia (13.4%) had reduced functional bladder capacity. The use of 2 or more antihypertensive medications was significantly higher in the NP than non-NP group (22.8% vs. 12.3%; P = .035). Significantly more patients in the NP group had non-dipping blood pressure (P = .037). Non-dipping blood pressure was considered a potential factor for NP. CONCLUSION We suggest that treatment of non-dipping blood pressure may improve NP.
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Affiliation(s)
- Misato Takayama
- Department of Urology, Iwate Medical University, Morioka, Japan
| | - So Omori
- Department of Urology, Iwate Medical University, Morioka, Japan
| | | | - Ei Shiomi
- Department of Urology, Iwate Medical University, Morioka, Japan
| | - Ryo Takata
- Department of Urology, Iwate Medical University, Morioka, Japan
| | - Jun Sugimura
- Department of Urology, Iwate Medical University, Morioka, Japan
| | - Takaya Abe
- Department of Urology, Iwate Medical University, Morioka, Japan
| | - Wataru Obara
- Department of Urology, Iwate Medical University, Morioka, Japan
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Pääkkö TJW, Perkiömäki JS, Kesäniemi YA, Ylitalo AS, Lumme JA, Huikuri HV, Ukkola OH. Increasing ambulatory pulse pressure predicts the development of left ventricular hypertrophy during long-term follow-up. J Hum Hypertens 2018; 32:180-189. [PMID: 29416118 DOI: 10.1038/s41371-018-0034-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/09/2017] [Accepted: 12/12/2017] [Indexed: 01/19/2023]
Abstract
Ambulatory blood pressure (ABP) has been shown to have an association with left ventricular hypertrophy (LVH). We evaluated the association between ABP characteristics and the development of LVH during long-term follow-up (20 years) in 420 middle-aged subjects from OPERA cohort. ABP measurements (ABPM) were recorded and echocardiographic examinations were performed at baseline and revisit. Anthropometrics were measured and laboratory analyses performed at visit. The questionnaire presented to all participants elicited detailed information about their habits. Left ventricular mass index (LVMI) was calculated according to Troys method. Baseline LVMI was a significant independent predictor of LVMI change (p < 0.001). None of the baseline continuous ABPM predicted the change in LVMI. A greater increase in daytime and night-time systolic blood pressure (BP) (p from 0.006 to 0.048) and 24 h, daytime and night-time pulse pressure (PP) (p from 0.005 to 0.034) predicted a greater increase in LVMI. Especially the increase in night-time SBP (p = 0.006) and PP (p = 0.005) predicted a greater increase in LVMI. We also considered circadian BP profiles among subjects, whose ABPM at baseline and echocardiographic measurements both at baseline and follow-up were available. Diastolic non-dippers were observed to show a greater increase in LVMI compared to diastolic dippers (10.6 ± 33.0 g/m2 vs. 7.0 ± 28.8 g/m2, p = 0.032), when baseline LVMI and in-office DBP were taken account. These findings suggest that an increasing ambulatory PP increases and a diastolic non-dipping status may increase the risk for the development of LVH during later life course.
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Affiliation(s)
- Tero J W Pääkkö
- Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland.
| | - Juha S Perkiömäki
- Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
| | | | - Antti S Ylitalo
- Lappi Central Hospital, Rovaniemi, University of Oulu, Oulu, Finland
| | - Jarmo A Lumme
- Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
| | - Heikki V Huikuri
- Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
| | - Olavi H Ukkola
- Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
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Hassan AKM, Abd–El Rahman H, Mohsen K, Dimitry SR. Impact of in-hospital blood pressure variability on cardiovascular outcomes in patients with acute coronary syndrome. J Clin Hypertens (Greenwich) 2017; 19:1252-1259. [PMID: 29105946 PMCID: PMC8030841 DOI: 10.1111/jch.13107] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 06/21/2017] [Accepted: 06/25/2017] [Indexed: 01/28/2023]
Abstract
To evaluate the impact of blood pressure variability (BPV) on cardiovascular outcomes in patients with acute coronary syndrome, short-term BPV was estimated by using weighted standard deviation of 24-hour ambulatory blood pressure monitoring readings. The primary outcome was in-hospital major adverse cardiac events (MACE). Overall, 200 patients (mean age, 58.6 years; 27.5% women; 38% with diabetes mellitus; and 47% smokers) were divided into low and high BPV groups based on the median value (9.45). Patients in the high BPV group were more likely to have in-hospital MACE compared with patients with low BPV (47% vs 27%, P = .003). Multivariate binary logistic regression analysis of incidence of MACE showed that BPV (odds ratio, 2.4; confidence interval, 1.2-4.5 [P = .008]) and presence of type II diabetes mellitus (odds ratio, 2.6; confidence interval, 1.2-5.3 [P = .008]) were the only independent predictors of in-hospital MACE derived mainly by hypertensive emergencies. BPV could be an important risk factor for in-hospital MACE in patients with acute coronary syndrome.
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Affiliation(s)
| | | | - Kerolos Mohsen
- Department of CardiologyFaculty of MedicineAssiut UniversityAssiutEgypt
| | - Salwa R. Dimitry
- Department of CardiologyFaculty of MedicineAssiut UniversityAssiutEgypt
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Li X, Li J, Liu K, Gong S, Shi R, Pan P, Yang Y, Chen X. Association between sleep disorders and morning blood pressure in hypertensive patients. Clin Exp Hypertens 2017; 40:337-343. [PMID: 28956652 DOI: 10.1080/10641963.2017.1377217] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xinran Li
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Jiangbo Li
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Kai Liu
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Shenzhen Gong
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Rufeng Shi
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Pei Pan
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Yujie Yang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoping Chen
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
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Blood pressure variability and cognitive decline in older people: a 5-year longitudinal study. J Hypertens 2017; 35:140-147. [PMID: 27648719 DOI: 10.1097/hjh.0000000000001120] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Cognitive impairment is common in later life. Identifying potential modifiable risk factors for cognitive decline may ameliorate the burden of disease. Cross-sectional studies show an association between blood pressure (BP) variability and impaired cognitive function in patients with hypertension and/or dementia. However, research examining the association between BP variability and cognitive function in the general older population is scarce. OBJECTIVE In this study, we examined the association between BP variability and cognitive function over 5-year follow-up in an unselected community-dwelling cohort. METHODS Ambulatory BP monitoring was performed in 353 community-dwelling people aged at least 65 years. Cognitive assessment, using the Mini Mental State Examination (MMSE) and Cambridge Cognitive Examination (CAMCOG), was performed at baseline and at 5-year follow-up. BP variability was calculated using the coefficient of variation. Cognitive change over 5 years was defined as baseline score minus follow-up score. RESULTS Increased daytime systolic variability was associated with poorer performance on the CAMCOG total score and subscores. Daytime diastolic variability was associated with poorer performance on total CAMCOG, CAMCOG executive score, and MMSE. These findings were independent of demographic and cardiovascular risk factors. Daytime systolic variability was also independently associated with greater decline in total CAMCOG and MMSE scores over 5-year follow-up. CONCLUSION Increased BP variability is associated with poorer cognitive function in older people and may represent a novel modifiable risk factor for cognitive decline.
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Salvo F, Lonati C, Berardi M, Errani AR, Muzzulini CL, Morganti A. Nocturnal Blood Pressure Dipping is Abolished in Old-Elderly Hospitalized Patients. High Blood Press Cardiovasc Prev 2017; 24:413-417. [DOI: 10.1007/s40292-017-0224-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/17/2017] [Indexed: 11/30/2022] Open
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Manner IW, Waldum-Grevbo B, Witczak BN, Bækken M, Øktedalen O, Os I, Schwartz T, Sjaastad I. Immune markers, diurnal blood pressure profile and cardiac function in virologically suppressed HIV-infected patients. Blood Press 2017; 26:332-340. [PMID: 28675304 DOI: 10.1080/08037051.2017.1346459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE Non-dipping nocturnal blood pressure (BP) pattern has been reported prevalent among HIV-infected patients and is associated with adverse cardiovascular outcomes. The aims of this observational study were to identify predictors of nocturnal BP decline, and to explore whether diurnal BP profile is associated with alterations in cardiac structure and function. MATERIALS AND METHODS A total of 108 treated HIV-infected patients with suppressed viremia underwent ambulatory BP measurement, 51 of these patients also underwent echocardiography. RESULTS Non-dipping nocturnal BP pattern was present in 51% of the patients. Decreased nocturnal decline in systolic BP (SBP) correlated with lower CD4 count (rsp = 0.21, p = 0.032) and lower CD4/CD8 ratio (rsp = 0.26, p = 0.008). In multivariate linear regression analyses, lower BMI (p = 0.015) and CD4/CD8 ratio <0.4 (p = 0.010) remained independent predictors of nocturnal decline in SBP. Nocturnal decline in SBP correlated with impaired diastolic function, e' (r = 0.28, p = 0.049) as did nadir CD4 count (rsp = 0.38, p = 0.006). In multivariate linear regression analyses, nadir CD4 count <100 cells/μL (p = 0.037) and age (p < 0.001) remained independent predictors of e'. CONCLUSIONS Compromised immune status may contribute to attenuated diurnal BP profile as well as impaired diastolic function in well-treated HIV infection.
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Affiliation(s)
- Ingjerd W Manner
- a Department of Nephrology , Oslo University Hospital , Oslo , Norway
| | | | - Birgit Nomeland Witczak
- b Institute for Experimental Medical Research , Oslo University Hospital and University of Oslo , Oslo , Norway
| | - Morten Bækken
- a Department of Nephrology , Oslo University Hospital , Oslo , Norway
| | - Olav Øktedalen
- c Department of Infectious Diseases , Oslo University Hospital , Oslo , Norway
| | - Ingrid Os
- a Department of Nephrology , Oslo University Hospital , Oslo , Norway.,d Institute of Clinical Medicine, Faculty of Medicine , University of Oslo , Oslo , Norway
| | - Thomas Schwartz
- b Institute for Experimental Medical Research , Oslo University Hospital and University of Oslo , Oslo , Norway.,c Department of Infectious Diseases , Oslo University Hospital , Oslo , Norway
| | - Ivar Sjaastad
- b Institute for Experimental Medical Research , Oslo University Hospital and University of Oslo , Oslo , Norway.,e Department of Cardiology , Oslo University Hospital , Oslo , Norway
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Kent ST, Schwartz JE, Shimbo D, Overton ET, Burkholder GA, Oparil S, Mugavero MJ, Muntner P. Race and sex differences in ambulatory blood pressure measures among HIV+ adults. ACTA ACUST UNITED AC 2017. [PMID: 28624171 DOI: 10.1016/j.jash.2017.05.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Ambulatory blood pressure monitoring (ABPM) can identify phenotypes that cannot be measured in the clinic. Determining race and sex disparities in ABPM measures among HIV+ individuals may improve strategies to diagnose and treat hypertension in this high-risk population. We compared ABPM measures between 24 African-American and 25 white HIV+ adults (36 men and 13 women). Awake systolic blood pressure (SBP) and diastolic blood pressure (DBP) were similar in African-Americans and whites. After multivariable adjustment, sleep SBP and DBP were 9.7 mm Hg (95% confidence interval [95% CI]: 4.7, 14.8) and 8.4 mm Hg (95% CI: 4.3, 12.5) higher, respectively, among African-Americans compared with whites. After multivariable adjustment, SBP and DBP dipping ratios were 5.2% (95% CI: 1.7%, 8.7%) and 6.1% (95% CI 2.0%, 10.3%) smaller among African-Americans compared with whites. After multivariable adjustment, awake and sleep SBP and DBP were higher in men compared to women. There was no difference in SBP or DBP dipping ratios comparing men and women. The prevalence of awake masked hypertension was 42% in men versus 17% in women, and the prevalence of sleep masked hypertension was 57% among African-Americans versus 18% among whites. These data suggest that ABPM measures differ by race and sex in HIV+ adults.
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Affiliation(s)
- Shia T Kent
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Joseph E Schwartz
- Department of Psychiatry, Applied Behavioral Medicine Research Institute, Stony Brook University, Stony Brook, NY, USA; Center for Behavioral Cardiovascular Health, Department of Medicine, Columbia University Medical Center, New York, NY, USA
| | - Daichi Shimbo
- Center for Behavioral Cardiovascular Health, Department of Medicine, Columbia University Medical Center, New York, NY, USA
| | - Edgar T Overton
- Division of Infectious Diseases, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Greer A Burkholder
- Division of Infectious Diseases, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Suzanne Oparil
- Vascular Biology and Hypertension Program, Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael J Mugavero
- Division of Infectious Diseases, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Paul Muntner
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA.
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Abstract
Different stages of sleep are associated with significant variability in cardiovascular function, which is mediated by marked changes in balance between 2 components of the autonomic system: parasympathetic and sympathetic. Autonomic control of circulation is essential in ensuring an adequate blood flow to vital organs through constant adjustments of arterial blood pressure, heart rate, and redistribution of blood flow. Fluctuations in components of the autonomic nervous system synchronize with electroencephalographic activity during arousal or different stages of sleep. As a result, these can lead to several cardiovascular consequences in those who have underlying heart disease or sleep-disordered breathing.
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45
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Reduced capacity of autonomic and baroreflex control associated with sleep pattern in spontaneously hypertensive rats with a nondipping profile. J Hypertens 2017; 35:558-570. [DOI: 10.1097/hjh.0000000000001205] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Nocturnal Hypertension and Altered Night–Day BP Profile and Atherosclerosis in Renal Transplant Patients. Transplantation 2016; 100:2211-8. [DOI: 10.1097/tp.0000000000001023] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Mezue K, Isiguzo G, Madu C, Nwuruku G, Rangaswami J, Baugh D, Madu E. Nocturnal Non-dipping Blood Pressure Profile in Black Normotensives Is Associated with Cardiac Target Organ Damage. Ethn Dis 2016; 26:279-84. [PMID: 27440966 DOI: 10.18865/ed.26.3.279] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
PURPOSE A non-dipping pattern of nocturnal blood pressure in hypertensive patients is an established predictor of cardiovascular risk, especially in Blacks. However, data on non-dipping normotensives and cardiovascular risk in this population is sparse. In this study, we aim to determine if a non-dipping profile in a cohort of Black normotensives is associated with cardiac target organ damage. METHODS We studied ambulatory blood pressure patterns in 43 normotensive Black patients of Caribbean origin and classified their profiles as dippers (DP) and non-dippers (NDP) based on their nocturnal blood pressure profiles. Cardiac target organ damage was estimated from 2-D echocardiogram. RESULTS The mean age of the cohort was 52 years. Both groups were similar with respect to baseline age, sex, weight, height, body mass index and daytime ambulatory BP. There was a statistically significant difference in nocturnal blood pressure between DP and NDP groups (112 ± 7/64 ± 2 mm Hg vs 117 ± 3/69 ± 2 mm Hg, P=.004). The NDP cohort showed evidence of cardiovascular target damage on echocardiography with a significantly increased relative wall thickness (.35 ± .07 cm vs .42 ± .05 cm, P=.001), left ventricular mass index (95 ± 14 vs 105 ± 14 g/m(2), P=.018) and left atrial volume index (26 ± 3.5 vs. 30 ± 3.4, P=.001). Left ventricular geometry in the non-dippers also showed increased concentric remodeling, concentric and eccentric hypertrophy. CONCLUSIONS Our study demonstrates that nocturnal non-dipping of blood pressure in normotensive Blacks of Caribbean origin may be associated with cardiovascular end organ damage thereby providing new surveillance and therapeutic targets.
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Affiliation(s)
- Kenechukwu Mezue
- Department of Medicine, Einstein Medical Center, Philadelphia, Pennsylvania, USA
| | | | - Chichi Madu
- University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | | | - Janani Rangaswami
- Delaware Valley Nephrology and Hypertension Associates, Philadelphia; Sidney Kimmel College of Thomas Jefferson University, Philadelphia
| | - Dainia Baugh
- DOCS Heart Center, Enugu, Nigeria; Heart Institute of the Caribbean (HIC), Kingston, Jamaica
| | - Ernest Madu
- DOCS Heart Center, Enugu, Nigeria; Heart Institute of the Caribbean (HIC), Kingston, Jamaica
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Cicconetti P, Morelli S, De Serra C, Ciotti V, Chiarotti F, de Marle MG, Ottaviani L, Riolo N, Marigliano V. Left Ventricular Mass in Dippers and Nondippers with Newly Diagnosed Hypertension. Angiology 2016; 54:661-9. [PMID: 14666954 DOI: 10.1177/000331970305400605] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hypertensive subjects can be subdivided into 2 groups, dippers and nondippers, according to the presence or the lack of a nocturnal fall of blood pressure of more than 10%. Several studies have investigated cardiac organ damage in the 2 groups with discordant results, but they included subjects with different onset, severity, and treatment of hypertension. The authors selected 23 dippers and 17 nondippers affected by newly (< 1 year) diagnosed grades 1 and 2 hypertension, never treated, who underwent 24-hour ambulatory blood pressure monitoring and M-mode echocardiography. They did not find significant differences between the 2 groups as regards the echocardiographic left ventricular and atrial dimensions or regarding the left ventricular mass, left ventricular mass index, or relative wall thickness. Also no significant differences were found in the rate of either left ventricular remodeling or left ventricular hyper trophy. These data suggest that nondipping status is not associated with a higher level of cardiac involvement in the early phases of hypertension compared to dipping status.
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Affiliation(s)
- Paolo Cicconetti
- Department of Geriatrics, Ist Institute of Medicine, La Sapienza University, Rome, Italy.
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Aspectos clínicos actuales del monitoreo ambulatorio de presión arterial. ARCHIVOS DE CARDIOLOGIA DE MEXICO 2016; 86:255-9. [DOI: 10.1016/j.acmx.2015.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 12/02/2015] [Accepted: 12/02/2015] [Indexed: 11/21/2022] Open
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Abstract
Left ventricular hypertrophy (LVH), which describes pathological changes in cardiac structure, is a powerful and reversible predictor of cardiovascular risk. There is a continuous relationship between left ventricular mass (LVM) and the likelihood of cardiovascular events, with no cut-off between the absence of such events and heightened risk. A correlation between LVH and blood pressure is well established. There is a paradox, however, that the structural changes to the heart as a result of increased workload due to high blood pressure appear to promote cardiovascular disease. This may be partially explained by the fact that ambulatory blood pressure measurements correlate more closely with LVH than resting blood pressure. Blood pressure variation throughout the day is also emerging as an important correlate of LVH, and a strong association has been identified between an early morning rise in blood pressure and increased LVM. Use of anti-hypertensive agents not only lowers blood pressure, but can also bring about LVH regression. The pathological role of angiotensin II in LVH and target-organ damage within the cardiovascular continuum suggest that agents targeting the renin – angiotensin - aldosterone system (RAAS), such as the angiotensin-converting enzyme inhibitors and angiotensin II receptor blockers, may prove particularly effective and may confer beneficial effects in addition to the lowering of blood pressure. The angiotensin II receptor blockers may be very appropriate treatment options because of their placebo-like tolerability and the possibility of more complete blockade of the RAAS. Within this class of anti-hypertensive agents, pharmacological differences may mean that some agents afford greater cardioprotection than others.
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Affiliation(s)
- P Gosse
- Cardiology Service-Arterial Hypertension, Hospital Saint-André, Bordeaux, France.
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