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The circadian rhythm of arterial blood pressure in Alzheimer's disease and vascular dementia. Acta Neurol Belg 2023; 123:129-137. [PMID: 34043211 DOI: 10.1007/s13760-021-01664-8] [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: 11/06/2020] [Accepted: 03/26/2021] [Indexed: 10/21/2022]
Abstract
Hypertension is considered a risk factor for stroke and dementia. Ambulatory blood pressure monitoring (ABPM) is a useful tool in the diagnosis and treatment of hypertension. This study aimed to evaluate blood pressure using ABPM, in 30 Alzheimer's disease (AD) patients and 30 vascular dementia (VaD) patients in comparison with 30 healthy controls. BP was recorded every 15 min from 6 AM to 10 PM, and every 30 min from 10 PM to 6 AM. Mean systolic (SBP) and diastolic (DBP) blood pressure during daytime, nighttime, diurnal index, pulse pressure, and heart rate were extracted from the ABPM recordings. VaD patients presented higher SBP values compared to AD patients and healthy controls. DBP values in the AD group were the lowest, while VaD patients presented the highest DBP values, including day and nighttime. Mean arterial pressure values were also the highest in the VaD group, while AD patients had similar values with the control group. The VaD patients presented the lowest systolic diurnal index compared to AD patients and controls. The mean pulse pressure and nighttime pulse pressure values were higher in both groups of dementia patients when compared with the control group. Increased SBP, pulse pressure, and alteration in the circadian pattern with the highest incidence of the non-dipper and reverse dipper patterns were found in patients with dementia when compared with the healthy elderly. Also, decreased values of DBP were found in AD patients, especially during the night period.
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Awosika A, Adabanya U, Millis RM, Omole AE, Moon JH. Postprandial Hypotension: An Underreported Silent Killer in the Aged. Cureus 2023; 15:e35411. [PMID: 36851946 PMCID: PMC9964048 DOI: 10.7759/cureus.35411] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2023] [Indexed: 03/01/2023] Open
Abstract
Orthostatic hypotension (OH) is one of the most common autonomic dysfunctions, with high prevalence in populations of elderly, hypertensive, diabetic, or Parkinson's patients. Evidence is emerging that OH co-occurs with postprandial hypotension (PPH); a greater prevalence of PPH than of OH is reported for Parkinson's disease patients. OH is diagnosed by measuring the blood pressure changes associated with postural changes and often produces alterations in consciousness or other such bothersome symptoms as fainting. PPH is diagnosed by measuring the blood pressure changes associated with ingesting high carbohydrate test meals. Because of the time lag between food ingestion and absorption, PPH is often not reported as symptomatic and, therefore, not diagnosed as PPH. OH and PPH are independent predictors for all causes of mortality. Relative underdiagnosis may qualify PPH as a "silent killer" disease. This review is aimed at providing updates on the epidemiology, pathophysiology, and clinical aspects associated with the diagnosis and treatment of PPH. Highlighting the current gaps in knowledge and research about PPH is expected to make medical practitioners more cognizant of the dangers of underdiagnosis and motivate future research to identify individuals and populations at high risk for PPH and its sequelae.
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Affiliation(s)
- Ayoola Awosika
- College of Medicine, University of Illinois, Chicago, USA.,College of Health Sciences and Professions, Ohio University, Athens, USA
| | | | - Richard M Millis
- Pathophysiology, American University of Antigua, St. John's, ATG
| | - Adekunle E Omole
- Anatomical Sciences, American University of Antigua, St. John's, ATG
| | - Jin Hyung Moon
- General Medicine, Mercer University School of Medicine, Columbus, USA
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Chiang TY, Wang YK, Huang WC, Huang SS, Chu YC. Intraoperative hypotension in non-emergency decompression surgery for cervical spondylosis: The role of chronic arterial hypertension. Front Med (Lausanne) 2022; 9:943596. [PMID: 36330062 PMCID: PMC9622940 DOI: 10.3389/fmed.2022.943596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 09/26/2022] [Indexed: 12/03/2022] Open
Abstract
Background Cervical spondylotic myelopathy and chronic hypertension show a cause-effect relationship. Hypertension increases cardiovascular risk and is associated with intraoperative hypotension. We aimed to evaluate intraoperative hypotension in patients undergoing non-emergency decompression surgery for cervical spondylosis and its association with clinical myelopathy and chronic arterial hypertension. Methods This retrospective cohort study used healthcare data of adult patients undergoing cervical spine surgeries at Taipei Veterans General Hospital from 2015 to 2019. The primary outcomes were the incidence of intraoperative hypotension and predictive factors, and the secondary outcomes were the association of intraoperative hypotension and postoperative adverse outcomes in the surgical population. Results Among the 1833 patients analyzed, 795 (43.4%) required vasopressor treatment and 342 (18.7%) showed persistent hypotension. Factors independent associated with hypotension after anesthetic induction were age [odds ratio (OR), 1.15; 95% confidence interval (CI), 1.07-1.23 per 5 years, P < 0.001], male sex (OR, 1.63; 95% CI, 1.21-2.19, P < 0.001), chronic hypertension (OR, 1.77; 95% CI, 1.32-2.38, P < 0.001), upper cervical spine level C0-2 treated (OR, 3.04; 95% CI, 1.92-4.84, P < 0.001 vs. C3-T1), and increased number of spine segments treated (OR, 1.43; 95% CI 1.26-1.63, P < 0.001). Patients who developed intraoperative hypotension experienced more acute postoperative kidney injury (OR, 7.90; 95% CI, 2.34–26.63, P < 0.001), greater need for intensive care (OR, 1.80; 95% CI, 1.24–2.60, P = 0.002), and longer admission after surgery (1.09 days longer, 95% CI 0.06-2.12, P = 0.038). Conclusion Intraoperative hypotension is common even in non-emergency cervical spine surgery. A history of hypertension independently predicted intraoperative hypotension. Prompt assessments for identifiable features can help ameliorate intraoperative hypotension.
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Affiliation(s)
- Ting-Yun Chiang
- Department of Anesthesiology, Taipei Veterans General Hospital, Taipei City, Taiwan
| | - Yen-Kai Wang
- Department of Anesthesiology, Taipei Veterans General Hospital, Taipei City, Taiwan
| | - Wen-Cheng Huang
- School of Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei City, Taiwan
| | - Shiang-Suo Huang
- Department of Pharmacology, Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Ya-Chun Chu
- Department of Anesthesiology, Taipei Veterans General Hospital, Taipei City, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- *Correspondence: Ya-Chun Chu,
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4
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Association of ambulatory blood pressure with aortic valve and coronary artery calcification. J Hypertens 2022; 40:1344-1351. [PMID: 35762475 DOI: 10.1097/hjh.0000000000003147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE We aimed to investigate the effect of ambulatory blood pressure (BP) on aortic valve calcification (AVC) and coronary artery calcification (CAC), which are subclinical atherosclerotic diseases. METHODS In this population-based, cross-sectional study, we assessed office BP, mean ambulatory BP (24-h, awake, and asleep), and variability of ambulatory BP, as determined by the coefficient of variation (awake and asleep). AVC and CAC were quantified using an Agatston score (>0) based on computed tomography scanning. We calculated relative risks (RRs) and 95% confidence intervals (CIs) with a 1-standard deviation increment in each BP index for the presence of AVC and CAC using a multivariate-adjusted Poisson regression with robust error variance. RESULTS Of 483 participants (mean age: 66.8 years), 154 (31.9%) and 310 (64.2%) had AVC and CAC, respectively. The presence of AVC was associated with office systolic BP (SBP; RR, 1.15; 95% CI, 1.03-1.28), awake diastolic BP (DBP) variability (RR, 1.12; 95% CI, 1.01-1.25), and asleep SBP variability (RR, 1.14; 95% CI, 1.03-1.27). The presence of CAC was associated with office SBP (RR, 1.08; 95% CI, 1.01-1.15), mean 24-h SBP (RR, 1.10; 95% CI, 1.04-1.16), mean awake SBP (RR, 1.11; 95% CI, 1.04-1.17), mean asleep SBP (RR, 1.07; 95% CI, 1.01-1.13), and asleep SBP variability (RR, 1.07; 95% CI, 1.01-1.13). CONCLUSION These findings highlight the association of ambulatory BP indices with both AVC and CAC, but with different effects on their presences.
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Jenkins DJA, Sahye-Pudaruth S, Khodabandehlou K, Liang F, Kasmani M, Wanyan J, Wang M, Selvaganesh K, Paquette M, Patel D, Glenn AJ, Srichaikul K, Kendall CWC, Sievenpiper JL. Systematic review and meta-analysis examining the relationship between postprandial hypotension, cardiovascular events, and all-cause mortality. Am J Clin Nutr 2022; 116:663-671. [PMID: 35675216 PMCID: PMC9437988 DOI: 10.1093/ajcn/nqac158] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 06/03/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Postprandial hypotension (PPH) has been reported to be associated with syncope, falls, adverse cardiovascular outcomes, and increased all-cause mortality. It has been reported to have an incidence as high as 30% in the elderly and persons with diabetes. We therefore performed a meta-analysis to determine the relation of PPH with cardiovascular disease (CVD) events and all-cause mortality. OBJECTIVES Our objective was to conduct a systematic review and meta-analysis of cohort and cross-sectional studies to determine the association of PPH with CVD and all-cause mortality. METHODS We searched the databases MEDLINE, EMBASE, and Cochrane library up to 13 April 2022 for prospective cohort and cross-sectional studies that examined the association of PPH with CVD outcomes and all-cause mortality. Data were analyzed using the generic inverse variance method with a random-effects model. Grading of Recommendations, Assessment, Development, and Evaluation approach assessed the certainty of evidence. RESULTS Seven studies that included 2389 participants met our inclusion criteria. PPH was associated with each outcome individually, including increased all-cause mortality, total CVD, CVD mortality, and stroke. CVD outcomes and all-cause mortality combined were also associated with PPH (RR: 1.52; 95% CI: 1.05, 2.18; P = 0.03; I2 = 77%). The certainty of evidence was graded as very low due to significant heterogeneity and the limited number of studies. CONCLUSIONS This assessment indicates an association of PPH with CVD and all-cause mortality. Further studies are required to improve CVD and mortality estimates, but the potential seriousness of CVD and all-cause mortality as outcomes of PPH justifies more screening, diagnosis, and research.
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Affiliation(s)
| | - Sandhya Sahye-Pudaruth
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada,Clinical Nutrition Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada
| | | | - Fred Liang
- Department of Physiology and Immunology, University of Toronto, Toronto, Ontario
| | - Maaria Kasmani
- School of Medicine, University College of Dublin, Dublin, Ireland
| | - Jessica Wanyan
- Department of Human Biology, University of Toronto, Toronto, Ontario
| | - Maggie Wang
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | | | - Melanie Paquette
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada,Clinical Nutrition Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Darshna Patel
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada,Clinical Nutrition Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Andrea J Glenn
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, Toronto, Ontario, Canada,Clinical Nutrition Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Korbua Srichaikul
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada,Clinical Nutrition Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Cyril W C Kendall
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, Toronto, Ontario, Canada,Clinical Nutrition Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada,College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - John L Sievenpiper
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, Toronto, Ontario, Canada,Clinical Nutrition Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada,Division of Endocrinology and Metabolism, St. Michael's Hospital, Toronto, Ontario, Canada
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6
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Postprandial Hypotension and Spinal Cord Injury. J Clin Med 2021; 10:jcm10071417. [PMID: 33915893 PMCID: PMC8037943 DOI: 10.3390/jcm10071417] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 11/17/2022] Open
Abstract
Postprandial hypotension (PPH) is defined as a fall of ≥20 mmHg in systolic blood pressure (SBP) or a SBP of <90 mmHg after having been >100 mmHg before the meal within two hours after a meal. The prevalence of PPH among persons with spinal cord injury (SCI) is unknown. Ambulatory blood pressure measurement was performed in 158 persons with SCI, 109 men, median age was 59.1 years (min.:13.2; max.: 86.2). In total, 78 persons (49.4%) had PPH after 114 out of 449 meals (25.4%). The median change in SBP during PPH was −28 mmHg (min.: −87; max.: −15 mmHg) and 96% of the PPH episodes were asymptomatic. The occurrence of PPH was correlated to older age (p = 0.001), level of injury (p = 0.023), and complete SCI (p = 0.000), but not, gender or time since injury. Further studies are needed to elucidate if PPH contributes to the increased cardiovascular mortality in the SCI population.
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Characteristics Associated with the Postprandial Hypotensive Response in Falling Older Adults. Can J Aging 2020; 38:434-440. [PMID: 31084627 DOI: 10.1017/s0714980818000752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Il a été démontré que l'intensité de la réponse hypotensive postprandiale (RHP) peut constituer un facteur de risque pour les chutes, les fractures et le décès. Bien que ce risque ait été bien établi, les cliniques de chutes font rarement des analyses liées aux repas, en raison de contraintes logistiques. Afin de mieux cibler les patients à risque de RHP parmi les personnes âgées affectées par des chutes, cette étude a examiné les caractéristiques individuelles associées à des RHP plus intenses. Cinquante-deux patients (âge moyen : 77,8 ± 0,9 ans, 29 femmes, 23 hommes) référés par des cliniques de prévention des chutes ont été recrutés pour un repas-test de 90 minutes. Les variables significatives ont ensuite été insérées dans un modèle linéaire multivarié incluant l'âge, le sexe, la présence de diabète, la présence d'hypertension, la pression systolique de base (PSB) et la chute de la PSB orthostatique. Bien que de plus amples recherches soient nécessaires, notre étude suggère que les hommes, les patients présentant une tension artérielle élevée et ceux avec une chute orthostatique pourraient être plus à risque de réponses hémodynamiques postprandiales plus intenses. The magnitude of the postprandial hypotensive (PPH) response has been shown to be an independent risk factor for falls, fractures, and death. Despite this well-established risk, meal tests are rarely done in the falls clinic setting because of logistical issues. In order to better target potential PPH patients among older falling adults, this study examines which subject characteristics are associated with larger PPH responses. A total of 52 falls clinic patients (mean age 77.8 ± 0.9 years, 29 women, 23 men) were recruited for a 90 minute meal test. Significant variables were then entered into a stepwise multivariate linear model containing age, sex, presence of diabetes, presence of hypertension, baseline systolic blood pressure (SBP), and the orthostatic drop in SBP. Although further work is required, our study suggests that men, patients with higher blood pressure, and patients with an orthostatic drop might be more likely to have higher postprandial hemodynamic responses.
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Jang A. Postprandial Hypotension as a Risk Factor for the Development of New Cardiovascular Disease: A Prospective Cohort Study with 36 Month Follow-Up in Community-Dwelling Elderly People. J Clin Med 2020; 9:jcm9020345. [PMID: 32012696 PMCID: PMC7073667 DOI: 10.3390/jcm9020345] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 01/21/2020] [Accepted: 01/23/2020] [Indexed: 11/16/2022] Open
Abstract
Postprandial hypotension (PPH) is common among the elderly. However, it is unknown whether the presence of PPH can predict the development of new cardiovascular disease (CVD) in the elderly during the long-term period. This study aimed to prospectively evaluate the presence of PPH and the development of new CVD within a 36 month period in 94 community-dwelling elderly people without a history of CVD. PPH was diagnosed in 47 (50.0%) participants at baseline and in 7 (7.4%) during the follow-up period. Thirty participants (31.9%) developed new CVD within 36 months. We performed a time-dependent Cox regression analysis with PPH, hypertension, diabetes, and body mass index (BMI) as time-varying covariates. In the univariate analyses, the presence of PPH, higher BMI, hypertension, diabetes mellitus, and higher systolic and diastolic blood pressure were associated with the development of new CVD. The multivariate analysis indicated that the relationship between PPH and the development of new CVD remained (adjusted hazard ratio 11.18, 95% confidence interval 2.43-51.38, p = 0.002) even after controlling for other variables as covariates. In conclusion, the presence of PPH can predict the development of new CVD. Elderly people with PPH may require close surveillance to prevent CVD.
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Affiliation(s)
- Aelee Jang
- Department of Nursing, University of Ulsan, 93, Daehak-ro, Nam-gu, Ulsan 44610, Korea
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9
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Caruso P, Signori R, Moretti R. Small vessel disease to subcortical dementia: a dynamic model, which interfaces aging, cholinergic dysregulation and the neurovascular unit. Vasc Health Risk Manag 2019; 15:259-281. [PMID: 31496716 PMCID: PMC6689673 DOI: 10.2147/vhrm.s190470] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 01/14/2019] [Indexed: 12/14/2022] Open
Abstract
Background Small vessels have the pivotal role for the brain’s autoregulation. The arteriosclerosis-dependent alteration of the brain perfusion is one of the major determinants in small vessel disease. Endothelium distress can potentiate the flow dysregulation and lead to subcortical vascular dementia (sVAD). sVAD increases morbidity and disability. Epidemiological studies have shown that sVAD shares with cerebrovascular disease most of the common risk factors. The molecular basis of this pathology remains controversial. Purpose To detect the possible mechanisms between small vessel disease and sVAD, giving a broad vision on the topic, including pathological aspects, clinical and laboratory findings, metabolic process and cholinergic dysfunction. Methods We searched MEDLINE using different search terms (“vascular dementia”, “subcortical vascular dementia”, “small vessel disease”, “cholinergic afferents”, etc). Publications were selected from the past 20 years. Searches were extended to Embase, Cochrane Library, and LILIACS databases. All searches were done from January 1, 1998 up to January 31, 2018. Results A total of 560 studies showed up, and appropriate studies were included. Associations between traditional vascular risk factors have been isolated. We remarked that SVD and white matter abnormalities are seen frequently with aging and also that vascular and endothelium changes are related with age; the changes can be accelerated by different vascular risk factors. Vascular function changes can be heavily influenced by genetic and epigenetic factors. Conclusion Small vessel disease and the related dementia are two pathologies that deserve attention for their relevance and impact in clinical practice. Hypertension might be a historical problem for SVD and SVAD, but low pressure might be even more dangerous; CBF regional selective decrease seems to be a critical factor for small vessel disease-related dementia. In those patients, endothelium damage is a super-imposed condition. Several issues are still debatable, and more research is needed.
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Affiliation(s)
- Paola Caruso
- Department of Medical, Surgical and Health Sciences, Neurology Clinic, University of Trieste, Trieste, Italy
| | - Riccardo Signori
- Department of Medical, Surgical and Health Sciences, Neurology Clinic, University of Trieste, Trieste, Italy
| | - Rita Moretti
- Department of Medical, Surgical and Health Sciences, Neurology Clinic, University of Trieste, Trieste, Italy
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de Havenon A, Meyer C, McNally JS, Alexander M, Chung L. Subclinical Cerebrovascular Disease: Epidemiology and Treatment. Curr Atheroscler Rep 2019; 21:39. [PMID: 31350593 DOI: 10.1007/s11883-019-0799-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW Subclinical cerebrovascular disease (sCVD) is highly prevalent in older adults. The main neuroimaging findings of sCVD include white matter hyperintensities and silent brain infarcts on T2-weighted MRI and cerebral microbleeds on gradient echo or susceptibility-weighted MRI. In this paper, we will review the epidemiology of sCVD, the current evidence for best medical management, and future directions for sCVD research. RECENT FINDINGS Numerous epidemiologic studies show that sCVD, in particular WMH, is an important risk factor for the development of dementia, stroke, worse outcomes after stroke, gait instability, late-life depression, and death. Effective treatment of sCVD could have major consequences for the brain health of a substantial portion of older Americans. Despite the link between sCVD and many vascular risk factors, such as hypertension or hyperlipidemia, the optimal medical treatment of sCVD remains uncertain. Given the clinical equipoise about the risk versus benefit of aggressive medical management for sCVD, clinical trials to examine pragmatic, evidence-based approaches to management of sCVD are needed. Such a trial could provide much needed guidance on how to manage a common clinical scenario facing internists and neurologists in practice.
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Affiliation(s)
- Adam de Havenon
- Department of Neurology, University of Utah, Salt Lake City, UT, USA.
| | - Chelsea Meyer
- Department of Neurology, University of Utah, Salt Lake City, UT, USA
| | - J Scott McNally
- Department of Radiology, University of Utah, Salt Lake City, UT, USA
| | - Matthew Alexander
- Department of Radiology, University of Utah, Salt Lake City, UT, USA
| | - Lee Chung
- Department of Neurology, University of Utah, Salt Lake City, UT, USA
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11
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Hashizume M, Kinami S, Sakurai K, Izawa KP, Shiotani H. Postprandial Blood Pressure Decrease in Patients with Type 2 Diabetes and Mild or Severe Cardiac Autonomic Dysfunction. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16050812. [PMID: 30845668 PMCID: PMC6427584 DOI: 10.3390/ijerph16050812] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/01/2019] [Accepted: 03/04/2019] [Indexed: 11/16/2022]
Abstract
Background Few reports have evaluated the relationship between changes in postprandial blood pressure and the severity of autonomic dysfunction in patients with type 2 diabetes. This was a cross-sectional study designed to investigate postprandial blood pressure changes in individuals without type 2 diabetes and patients with type 2 diabetes and mild or severe cardiac autonomic dysfunction. Methods Forty patients with type 2 diabetes mellitus and 20 individuals without type 2 diabetes participated in this study. Fifty-two participants underwent a meal tolerance test. Blood pressure (brachial systolic blood pressure (bSBP) and central systolic blood pressure (cSBP)), electrocardiogram recordings, and blood samples were assessed before and after meal ingestion. Patients with diabetes were divided into two groups based on their coefficient of variation of R⁻R intervals (CVRR): a normal or mildly dysfunctional group (mild group, CVRR ≥ 2%; n = 20) and a severely dysfunctional group (severe group, CVRR < 2%; n = 15). Results In the control group, bSBP and cSBP did not significantly change after meal ingestion, whereas both decreased significantly at 60 min after meal ingestion in the mild and severe groups. While blood pressure recovered at 120 min after meal ingestion in the mild group, a significant decrease in blood pressure persisted at 120 min after meal ingestion in the severe group. Conclusions Based on these results, adequate clinical attention should be paid to the risk of serious events related to postprandial decreases in blood pressure, particularly in patients with diabetes and severe cardiac autonomic dysfunction.
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Affiliation(s)
- Masahiko Hashizume
- Graduate School of Health Sciences, Kobe University, Kobe 654-0142, Japan.
- Department of Rehabilitation, Arima Onsen Hospital, Kobe 651-1401, Japan.
| | - Saori Kinami
- Department of General Internal Medicine, Akashi Medical Center, Akashi, Hyogo 674-0063, Japan.
| | - Keiichi Sakurai
- Department of Internal Medicine, Tatsuno Central Hospital, Tatsuno, Hyogo 679-4121, Japan.
| | - Kazuhiro P Izawa
- Graduate School of Health Sciences, Kobe University, Kobe 654-0142, Japan.
| | - Hideyuki Shiotani
- Graduate School of Health Sciences, Kobe University, Kobe 654-0142, Japan.
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12
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Implications of blood pressure variations in older populations. Hypertens Res 2018; 42:19-25. [DOI: 10.1038/s41440-018-0125-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 09/30/2018] [Accepted: 10/03/2018] [Indexed: 11/08/2022]
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13
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Sato K, Sugiura T, Ohte N, Dohi Y. Postprandial hypotension in older people receiving tube feeding through gastrostomy. Geriatr Gerontol Int 2018; 18:1474-1478. [PMID: 30160007 DOI: 10.1111/ggi.13515] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/05/2018] [Accepted: 07/14/2018] [Indexed: 11/29/2022]
Abstract
AIM Postprandial hypotension (PPH) is recognized as a clinical problem, constituting a potential risk for cerebral and cardiovascular events, as well as mortality. The present study was designed to test the hypothesis that PPH is prevented by slowing the infusion rate of enteral nutrition through tube feeding and by avoiding the administration of antihypertensive drugs just before the start of tube feeding. METHODS Participants were older people receiving tube feeding through gastrostomy who used a geriatric health services facility (n = 12; mean age 79.8 years). Changes in blood pressure during and after enteric nutrient infusion lasting for 1 or 2 h were investigated with or without the administration of antihypertensive drugs just before the start of tube feeding. RESULTS When enteric nutrient was infused for 1 h, after the administration of antihypertensive drugs, nine of 12 participants showed PPH with a maximal reduction in systolic blood pressure of 37.6 ± 6.5 mmHg. Although PPH was not prevented by avoiding drug administration before infusion (maximal blood pressure reduction 30.2 ± 5.0 mmHg) or by extending the infusion time to 2 h (26.5 ± 7.5 mmHg), the combination of the two actions prevented PPH and reduced the postprandial fall in systolic blood pressure to 17.6 ± 5.8 mmHg. CONCLUSIONS The prevalence of PPH in older people receiving tube feeding was 75%. Slowing the enteric nutrient infusion rate combined with avoiding antihypertensive drugs just before the infusion was useful for preventing PPH. Geriatr Gerontol Int 2018; 18: 1474-1478.
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Affiliation(s)
| | - Tomonori Sugiura
- Cardio-Renal Medicine and Hypertension, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Nobuyuki Ohte
- Cardio-Renal Medicine and Hypertension, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yasuaki Dohi
- Internal Medicine, Faculty of Rehabilitation Science, Nagoya Gakuin University, Seto, Japan
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Nguyen TAN, Ali Abdelhamid Y, Weinel LM, Hatzinikolas S, Kar P, Summers MJ, Phillips LK, Horowitz M, Jones KL, Deane AM. Postprandial hypotension in older survivors of critical illness. J Crit Care 2018; 45:20-26. [PMID: 29413718 DOI: 10.1016/j.jcrc.2018.01.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 12/07/2017] [Accepted: 01/10/2018] [Indexed: 02/07/2023]
Abstract
PURPOSE In older people postprandial hypotension occurs frequently; and is an independent risk factor for falls, cardiovascular events, stroke and death. The primary aim of this pilot study was to estimate the frequency of postprandial hypotension and evaluate the mechanisms underlying this condition in older survivors of an Intensive Care Unit (ICU). MATERIALS AND METHODS Thirty-five older (>65 years) survivors were studied 3 months after discharge. After an overnight fast, participants consumed a 300 mL drink containing 75 g glucose, labelled with 20 MBq 99mTc-calcium phytate. Patients had concurrent measurements of blood pressure, heart rate, blood glucose and gastric emptying following drink ingestion. Proportion of participants is presented as percent (95% CI) and continuous variables as mean (SD). RESULTS Postprandial hypotension was evident in 10 (29%; 95% CI 14-44), orthostatic hypotension in 2 (6%; 95% CI 0-13) and cardiovascular autonomic dysfunction in 2 (6%; 95% CI 0-13) participants. The maximal postprandial nadir for systolic blood pressure and diastolic blood pressures were -29 (14) mmHg and -18 (7) mmHg. CONCLUSIONS In this cohort of older survivors of ICU postprandial hypotension occurred frequently . This suggests that postprandial hypotension is an unrecognised issue in older ICU survivors.
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Affiliation(s)
- Thu Anh Ngoc Nguyen
- Discipline of Acute Care Medicine, University of Adelaide, Adelaide, Australia
| | - Yasmine Ali Abdelhamid
- Discipline of Acute Care Medicine, University of Adelaide, Adelaide, Australia; Intensive Care Unit, Royal Adelaide Hospital, Adelaide, Australia
| | - Luke M Weinel
- Intensive Care Unit, Royal Adelaide Hospital, Adelaide, Australia
| | - Seva Hatzinikolas
- National Health and Medical Research Council Centre for Research Excellence in Translating Nutritional Science to Good Health, Adelaide, Australia
| | - Palash Kar
- Discipline of Acute Care Medicine, University of Adelaide, Adelaide, Australia
| | | | - Liza K Phillips
- National Health and Medical Research Council Centre for Research Excellence in Translating Nutritional Science to Good Health, Adelaide, Australia; Adelaide Medical School, University of Adelaide, Adelaide, Australia; Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, Australia
| | - Michael Horowitz
- National Health and Medical Research Council Centre for Research Excellence in Translating Nutritional Science to Good Health, Adelaide, Australia; Adelaide Medical School, University of Adelaide, Adelaide, Australia; Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, Australia
| | - Karen L Jones
- National Health and Medical Research Council Centre for Research Excellence in Translating Nutritional Science to Good Health, Adelaide, Australia; Adelaide Medical School, University of Adelaide, Adelaide, Australia; Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, Australia
| | - Adam M Deane
- Discipline of Acute Care Medicine, University of Adelaide, Adelaide, Australia; National Health and Medical Research Council Centre for Research Excellence in Translating Nutritional Science to Good Health, Adelaide, Australia; Intensive Care Unit, Royal Melbourne Hospital, Parkville, Australia.
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Goswami N, Blaber AP, Hinghofer-Szalkay H, Montani JP. Orthostatic Intolerance in Older Persons: Etiology and Countermeasures. Front Physiol 2017; 8:803. [PMID: 29163185 PMCID: PMC5677785 DOI: 10.3389/fphys.2017.00803] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 09/29/2017] [Indexed: 12/16/2022] Open
Abstract
Orthostatic challenge produced by upright posture may lead to syncope if the cardiovascular system is unable to maintain adequate brain perfusion. This review outlines orthostatic intolerance related to the aging process, long-term bedrest confinement, drugs, and disease. Aging-associated illness or injury due to falls often leads to hospitalization. Older patients spend up to 83% of hospital admission lying in bed and thus the consequences of bedrest confinement such as physiological deconditioning, functional decline, and orthostatic intolerance represent a central challenge in the care of the vulnerable older population. This review examines current scientific knowledge regarding orthostatic intolerance and how it comes about and provides a framework for understanding of (patho-) physiological concepts of cardiovascular (in-) stability in ambulatory and bedrest confined senior citizens as well as in individuals with disease conditions [e.g., orthostatic intolerance in patients with diabetes mellitus, multiple sclerosis, Parkinson's, spinal cord injury (SCI)] or those on multiple medications (polypharmacy). Understanding these aspects, along with cardio-postural interactions, is particularly important as blood pressure destabilization leading to orthostatic intolerance affects 3-4% of the general population, and in 4 out of 10 cases the exact cause remains elusive. Reviewed also are countermeasures to orthostatic intolerance such as exercise, water drinking, mental arithmetic, cognitive training, and respiration training in SCI patients. We speculate that optimally applied countermeasures such as mental challenge maintain sympathetic activity, and improve venous return, stroke volume, and consequently, blood pressure during upright standing. Finally, this paper emphasizes the importance of an active life style in old age and why early re-mobilization following bedrest confinement or bedrest is crucial in preventing orthostatic intolerance, falls and falls-related injuries in older persons.
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Affiliation(s)
- Nandu Goswami
- Gravitational Physiology and Medicine Research Unit, Institute of Physiology, Medical University of Graz, Graz, Austria
| | - Andrew P Blaber
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada
| | - Helmut Hinghofer-Szalkay
- Gravitational Physiology and Medicine Research Unit, Institute of Physiology, Medical University of Graz, Graz, Austria
| | - Jean-Pierre Montani
- Department of Medicine/Physiology, University of Fribourg, Fribourg, Switzerland
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Alfie J. Utility of home blood pressure monitoring to evaluate postprandial blood pressure in treated hypertensive patients. Ther Adv Cardiovasc Dis 2015; 9:133-9. [PMID: 26187907 DOI: 10.1177/1753944715593444] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Postprandial hypotension, defined as a fall in systolic blood pressure (SBP) of 20 mmHg or greater within 2 hours after a meal, is a risk factor for stroke, coronary events and mortality. The clinical suspicion is typically raised by episodes of postprandial syncope or falls, whereas asymptomatic postprandial hypotension is mostly neglected. The magnitude of the postprandial fall in SBP, as detected by 24-hour recording in apparently healthy middle-aged to elderly subjects, was proportional to the severity of the silent cerebrovascular damage. Postprandial hypotension can also be detected by self-measured blood pressure before and within 2 hours after meals using automatic devices. The review highlights the value of home blood pressure monitoring (HBPM) as a screening test for asymptomatic postprandial hypotension in hypertensive patients. Using a HBPM protocol that included duplicated blood pressure measurements before and after three consecutive lunches, we detected unsuspected postprandial hypotension in 27.4% of the 230 hypertensive patients screened. The prevalence of postprandial hypotension was 13.2% in controlled and 42.2% in uncontrolled hypertensive patients (p < 0.001), raising the dilemma of further lowering blood pressure in the setting of postprandial hypotension. The inclusion of preprandial and postprandial measurements in the protocol of HBPM is useful to identify hypertensive patients with postprandial hypotension and may guide adjustments in antihypertensive treatment according to postprandial blood pressure.
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Affiliation(s)
- José Alfie
- Unidad de Hipertensión Arterial, Servicio de Clínica Médica, Hospital Italiano de Buenos Aires, Perón 4190, Ciudad Autónoma de Buenos Aires (C1181ACH), Argentina
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Asensio E, Alvarez JB, Lara S, Alvarez de la Cadena JE, Juárez D. Postprandial hypotension in the elderly: Findings in a Mexican population. ARCHIVOS DE CARDIOLOGIA DE MEXICO 2015; 85:284-91. [PMID: 26095051 DOI: 10.1016/j.acmx.2015.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 04/27/2015] [Accepted: 05/08/2015] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE Postprandial hypotension is a known cause of syncope in the elderly. Its prevalence is unknown in our country. METHODS A prospective cross-sectional study was performed to determine PPH's Prevalence in elderly adults of both an urban and a rural Community in the State of Queretaro. Blood pressure measurements included a basal pre-prandial record, minute 0 recording at the moment they finished the meal and every 10 min until a 90 min record was complete. We included a medical history, a mental state test for cognitive evaluation (Minimental) and Minnesota Quality of life score and a food macronutrient composition analysis. RESULTS We included 256 subjects, 78.1 ± 8.8 years old, 195 (76.2%) female. Two-hundred and five subjects (80.1%) had Postprandial hypotension after one or both analyzed meals, with non-significant differences in the studied items. Sixty-six (26.2%) patients had "significant postprandial hypotension". Patients living in a special care facility had more postprandial hypotension than people at the family home (87-3% vs 69.8% respectively, p<0.0001). CONCLUSIONS Post-prandial hypotension is a common finding in this elderly population. We did not find distinctive conditions or markers that allow identification of subjects at risk for postprandial hypotension and its complications. This should prompt for routine screenings in specialized facilities to prevent complications.
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Affiliation(s)
- Enrique Asensio
- División de Medicina Interna, Hospital Médica TEC 100, Querétaro, Querétaro, Mexico.
| | - José Benito Alvarez
- Laboratorio de Electrofisiología Clínica, Hospital Español de México, Mexico City, Mexico
| | - Susano Lara
- Hospital de Alta especialidad T1, Instituto Mexicano del Seguro Social, León, Guanajuato, Mexico
| | | | - Daniela Juárez
- Universidad del Valle de México, Campus Querétaro, Querétaro, Mexico
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Son JT, Lee E. Effects of the amount of rice in meals on postprandial blood pressure in older people with postprandial hypotension: a within-subjects design. J Clin Nurs 2015; 24:2277-85. [PMID: 26094950 DOI: 10.1111/jocn.12864] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2015] [Indexed: 11/30/2022]
Abstract
AIMS AND OBJECTIVES To determine the effect of the amount of rice carbohydrates consumed during mealtime on the extent of decrease in postprandial blood pressure in older people with postprandial hypotension. BACKGROUND The incidence of postprandial hypotension is as high as 74% in older people with hypertension. DESIGN A within-subjects repeated measures design was used. METHODS Thirty-nine older people in nursing homes received a full serving and a half-serving of rice on two separate days, in random order blood pressure and heart rate were measured before each meal and every 15 minutes for a total of 120 minutes after each meal. Data were analysed using repeated measures analysis of variance and the paired t-test with a Bonferroni adjustment using IBM spss version 19.0. RESULTS The control and intervention conditions yielded significantly different patterns in systolic blood pressure and diastolic blood pressure. Postprandial hypotension was less frequent under the intervention condition; however, decrease in rice intake did not significantly affect heart rate. CONCLUSION Reducing the amount of rice intake per meal prevents postprandial blood pressure decreases in the older people. Small and frequent meals with decreased carbohydrate content are recommended to prevent postprandial hypotension and its complications in the older people. RELEVANCE TO CLINICAL PRACTICE Patients, dieticians and caregivers of older patients should be aware of the importance of diet, especially of decreasing the amount of carbohydrate in a meal. Smaller and more frequent meals are recommended for older people to slow gastric emptying.
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Affiliation(s)
- Jung Tae Son
- College of Nursing, Research Institute of Nursing Science, Catholic University of Daegu, Daegu, Korea
| | - Eunjoo Lee
- College of Nursing, Research Institute of Nursing Science, Kyungpook National University, Daegu, Korea
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Jang AL, Hwang SK, Kim DU. Effects of guar gum ingestion on postprandial blood pressure in older adults. J Nutr Health Aging 2015; 19:299-304. [PMID: 25732215 DOI: 10.1007/s12603-015-0453-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the effects of guar gum on postprandial blood pressure in older people. DESIGN A randomized, double-blind, placebo-controlled, cross-over design. SETTING Community senior centers in B city, South Korea. PARTICIPANTS Twenty-two older female adults aged 67 to 88 with postprandial hypotension. INTERVENTION The participants were randomly assigned to guar gum (semi-fluid food with 9 gram) or placebo intervention during the first treatment phase. After a washout period of 1 week, the two interventions were switched to the other in the second treatment phase. MEASUREMENTS Blood pressure was measured during both phases before having a meal and every 15 minutes during 120 minutes after a meal with automated sphygmomanometer. RESULTS Change in systolic blood pressure (SBP) over time was significantly different between guar gum and placebo groups (F=4.07, p=0.001). Compared with placebo group, guar gum group had significantly low prevalence of postprandial hypotension (PPH) (guar gum group=18.2% vs. placebo group=72.7%; χ² =13.20, p<0.001). It also had significant difference in change of diastolic blood pressure (DBP) over time between guar gum and placebo groups (F=2.49, p=0.027). CONCLUSION This findings show that guar gum could be effective on postprandial drops in blood pressure in older female adults.
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Affiliation(s)
- A L Jang
- Sun-Kyung Hwang, Associate Professor, College of Nursing, Pusan National University, 49, Busandaehak-ro, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do, Korea, 626-870, Tel: +82-51-510-8340, Fax: +82-51-510-8308, E-mail:
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Postprandial hypotension as a risk marker for asymptomatic lacunar infarction. J Hypertens 2014; 32:1084-90; discussion 1090. [PMID: 24695394 DOI: 10.1097/hjh.0000000000000150] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Increasing blood pressure (BP) variability is reported to be a cardiovascular risk factor. However, the clinical implications of postprandial hypotension (PHYPO), a commonly observed BP variability in elderly persons, are poorly understood. Here, we investigated the possible associations between postprandial BP decline and asymptomatic cerebral damage in community residents. METHODS Study participants consisted of 1308 general community residents (65 ± 9 years old). Postprandial BP change was calculated from SBP measured just before and 30 min after lunch. PHYPO was defined as a decline in SBP of more than 20 mmHg. The presence of asymptomatic cerebrovascular damage was evaluated by brain MRI. RESULTS Prevalence of lacunar infarction was significantly higher in participants with PHYPO (P = 0.004). A postprandial decline in SBP was linearly increased with the number of lacunar lesions (none, n = 1200, -3.4± 11.3 mmHg; one lesion, n = 82, -5.2 ± 11.8; two lesions, n = 18, -6.9 ± 11.5; three lesions, n = 7, -13.4 ± 11.3; and four lesions, n = 1, -27; P = 0.012). Although participants with PHYPO were older (P < 0.001) and had higher preprandial BP (P < 0.001) and faster pulse wave velocity (P = 0.001), multivariate analysis adjusted for these covariates indicated that postprandial BP decline was an independent determinant for the number of lacunar infarctions (P = 0.004). No significant associations were observed with grade of periventricular hyperintensity or frequency of microbleeds. These relationships were also found in an analysis based on central BP, whereas no superiority was seen in the analysis based on central BP. CONCLUSION Postprandial BP decline is an overlooked risk marker for asymptomatic lacunar infarction in community residents.
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Postprandial blood pressure fall: another dangerous face of blood pressure variability. J Hypertens 2014; 32:983-5. [PMID: 24695391 DOI: 10.1097/hjh.0000000000000172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Trahair LG, Horowitz M, Jones KL. Postprandial hypotension: a systematic review. J Am Med Dir Assoc 2014; 15:394-409. [PMID: 24630686 DOI: 10.1016/j.jamda.2014.01.011] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 01/24/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND Postprandial hypotension (PPH) is an important clinical problem, which has received inappropriately little attention. METHODS A systematic search of the databases PubMed, Embase, Cochrane Library, and Web of Knowledge, from their inception to the present time, was conducted to identify studies relevant to the epidemiology, pathophysiology, and/or management of PPH. RESULTS A total of 417 full-text papers were retrieved from database searching and, following screening, 248 were retained. Of these, 167 papers were considered eligible for inclusion. CONCLUSIONS PPH occurs commonly in older people and represents a major cause of morbidity. Although the pathophysiology of PPH remains poorly defined, diverse factors, including impairments in sympathetic and baroreflex function, release of vasodilatory peptides, the rate of small intestinal nutrient delivery, gastric distension, and splanchnic blood pooling, appear important. Current pharmacologic and nonpharmacologic management is suboptimal. Research into the pathophysiology of PPH represents a priority so that management can be targeted more effectively.
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Affiliation(s)
- Laurence G Trahair
- Discipline of Medicine, University of Adelaide, Adelaide, Australia; NHMRC Center of Research Excellence in Translating Nutritional Science to Good Health, University of Adelaide, Adelaide, Australia
| | - Michael Horowitz
- Discipline of Medicine, University of Adelaide, Adelaide, Australia; NHMRC Center of Research Excellence in Translating Nutritional Science to Good Health, University of Adelaide, Adelaide, Australia
| | - Karen L Jones
- Discipline of Medicine, University of Adelaide, Adelaide, Australia; NHMRC Center of Research Excellence in Translating Nutritional Science to Good Health, University of Adelaide, Adelaide, Australia.
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Mochel JP, Fink M, Bon C, Peyrou M, Bieth B, Desevaux C, Deurinck M, Giraudel JM, Danhof M. Influence of feeding schedules on the chronobiology of renin activity, urinary electrolytes and blood pressure in dogs. Chronobiol Int 2014; 31:715-30. [DOI: 10.3109/07420528.2014.897711] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Postprandial hypotension detected through home blood pressure monitoring: a frequent phenomenon in elderly hypertensive patients. Hypertens Res 2013; 37:438-43. [PMID: 24108236 DOI: 10.1038/hr.2013.144] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 08/21/2013] [Accepted: 08/27/2013] [Indexed: 12/20/2022]
Abstract
Postprandial hypotension (PPH) is a frequently under-recognized entity associated with increased morbidity and mortality. The prevalence of PPH detected through home blood pressure monitoring (HBPM) is unknown. To determine the prevalence and clinical predictors of PPH in hypertensive patients assessed through HBPM. Hypertensive patients of 18 years or older underwent home blood pressure (BP) measurements (duplicate measurements for 4 days: in the morning, 1 h before and 1 h after their usual lunch, and in the evening; OMRON 705 CP). PPH was defined as a meal-induced systolic BP decrease of ≥20 mm Hg. Variables identified as relevant predictors of PPH were entered into a multivariate logistic regression analysis. In total, 230 patients were included in the analysis, with a median age of 73.6 (interquartile range 16.9) years, and 65.2% were female. The prevalence of PPH (at least one episode) was 27.4%. Four variables were independently associated with PPH: age of 80 years or older (odds ratio (OR) 3.45, 95% confidence interval (CI) 1.35-8.82), body mass index (BMI) (OR 0.88, 95%CI 0.81-0.96), office systolic BP (OR 1.03, 95%CI 1.01-1.05) and a history of cerebrovascular disease (OR 3.29, 95%CI 1.03-10.53). PPH after a typical meal is a frequent phenomenon that can be detected through HBPM. Easily measurable parameters in the office such as older age, higher systolic BP, lower BMI and a history of cerebrovascular disease may help to detect patients at risk of PPH who would benefit from HBPM.
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Son JT, Lee E. Comparison of postprandial blood pressure reduction in the elderly by different body position. Geriatr Nurs 2013; 34:282-8. [DOI: 10.1016/j.gerinurse.2013.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Revised: 03/08/2013] [Accepted: 03/19/2013] [Indexed: 10/26/2022]
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Ryan DJ, Byrne S, Dunne R, Harmon M, Harbison J. White Matter Disease and an Incomplete Circle of Willis. Int J Stroke 2013; 10:547-52. [DOI: 10.1111/ijs.12042] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2012] [Accepted: 09/10/2012] [Indexed: 11/29/2022]
Abstract
Introduction White matter disease occurs as a consequence of small vessel disease; however, hypoperfusion may also play a role. We investigated whether patients with less cerebral vessel anastomosis may develop more white matter disease. Methods Magnetic resonance imaging (1.5t) with intracranial magnetic resonance angiography data was collected on a convenience sample between July 2008 and January 2009. All patients were independently assessed for circle of Willis variants by two researchers and categorized into two groups: those with a complete circle of Willis and those with an incomplete circle of Willis (absent vessels). The complete group was sub-divided into a classical group (entirely normal circle of Willis) and a hypoplastic group (hypoplasia but no absent vessels). White matter disease assessment was conducted for these groups, by two researchers blind to magnetic resonance angiography findings, on all patients over 50 years old. Results The circle of Willis was characterized in 163 patients, while 90 (>50 years) underwent white matter disease assessment. The kappa inter-rater reliability between both circle of Willis assessors and between both white matter disease assessors was 0·57 and 0·63, respectively. The prevalence of circle of Willis variants strongly correlated with the seminal paper by Riggs and Rupp. Independent of age and gender, those with an incomplete circle of Willis ( n = 68) exhibited 58% more white matter disease than those with a complete circle of Willis ( n = 22) (white matter disease score 6·52 vs. 4·11, respectively, P = 0·03). Patients with absent anterior vessels exhibited more frontal white matter disease than those with intact anterior vessels (3·7 vs. 1·72, P < 0·001). Patients with absent posterior vessels exhibited more occipital white matter disease than those with intact posterior vessels (2·52 vs. 1·34, P = 0·014). Conclusion These data suggest that congenital absence of anastomotic capacity correlates with incident white matter disease, thus alluding to a hypoperfusion mechanism in the development of white matter disease.
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Affiliation(s)
- Daniel James Ryan
- Stroke Department, St. James Hospital, Dublin, Ireland
- Department of Medical Gerontology, Trinity College Dublin, Dublin, Ireland
| | - Susan Byrne
- Stroke Department, St. James Hospital, Dublin, Ireland
| | - Ruth Dunne
- Radiology Department, St. James Hospital, Dublin, Ireland
| | - Mark Harmon
- Radiology Department, St. James Hospital, Dublin, Ireland
| | - Joseph Harbison
- Stroke Department, St. James Hospital, Dublin, Ireland
- Department of Medical Gerontology, Trinity College Dublin, Dublin, Ireland
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Meal-induced blood pressure variation and cardiovascular mortality in ambulatory hypertensive elderly patients. J Hypertens 2012; 30:2125-32. [DOI: 10.1097/hjh.0b013e328357f16d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Uetani E, Tabara Y, Igase M, Guo H, Kido T, Ochi N, Takita R, Kohara K, Miki T. Postprandial hypertension, an overlooked risk marker for arteriosclerosis. Atherosclerosis 2012; 224:500-5. [DOI: 10.1016/j.atherosclerosis.2012.07.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Revised: 06/25/2012] [Accepted: 07/09/2012] [Indexed: 10/28/2022]
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Fanciulli A, Strano S, Colosimo C, Caltagirone C, Spalletta G, Pontieri FE. The potential prognostic role of cardiovascular autonomic failure in α-synucleinopathies. Eur J Neurol 2012; 20:231-5. [PMID: 22834919 DOI: 10.1111/j.1468-1331.2012.03819.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Accepted: 06/12/2012] [Indexed: 11/29/2022]
Abstract
Cardiovascular autonomic failure is the second most common dysautonomic feature of α-synucleinopathies and has significant impact on daily activities and quality of life. Here we provide a systematic review of cardiovascular autonomic failure in α-synucleinopathies, emphasizing its impact on cognitive functions and disease outcomes. Articles spanning the period between January 1985 and April 2012 were identified from the PubMed database using a keyword-based search. Epidemiological studies highlight the negative prognostic effect of cardiovascular autonomic failure on cardiovascular and cerebrovascular outcomes and overall mortality in all α-synucleinopathies. Altered cerebral perfusion, vascular pressure stress, and related disruption of the blood-brain barrier may also contribute to the white matter hyperintensities and cognitive dysfunction frequently found in patients affected by neurocardiovascular instability. These findings support the hypothesis that cardiovascular autonomic failure may play a negative prognostic role in α-synucleinopathies and suggest that precocious screening and therapeutic management of cardiovascular autonomic failure may positively impact disease course.
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Affiliation(s)
- A Fanciulli
- Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
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Son JT, Lee E. Postprandial hypotension among older residents of a nursing home in Korea. J Clin Nurs 2012; 21:3565-73. [DOI: 10.1111/j.1365-2702.2011.04033.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sierra C. Associations between Ambulatory Blood Pressure Parameters and Cerebral White Matter Lesions. Int J Hypertens 2011; 2011:478710. [PMID: 21811670 PMCID: PMC3146988 DOI: 10.4061/2011/478710] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Accepted: 05/31/2011] [Indexed: 11/20/2022] Open
Abstract
Silent cerebral white matter lesions (WMLs) are a common finding on magnetic resonance imaging of the brain in the elderly. However, in patients with hypertension, WMLs tend to occur earlier in life and appear to be more severe. There is a body of evidence that supports the idea that WMLs in asymptomatic hypertensive patients should be considered a silent early marker of brain damage. It is known that ambulatory blood pressure monitoring (ABPM) correlates more closely with hypertension-related organ damage than office blood pressure. This paper focuses on the associations between blood pressure parameters obtained by 24-hour ABMP and cerebral WMLs.
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Affiliation(s)
- Cristina Sierra
- Hypertension Unit, Department of Internal Medicine, Institute of Medicine and Dermatology, IDIBAPS, Hospital Clinic of Barcelona, University of Barcelona, Villarroel 170, 08036 Barcelona, Spain
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Van Orshoven NP, Jansen PAF, Oudejans I, Schoon Y, Oey PL. Postprandial hypotension in clinical geriatric patients and healthy elderly: prevalence related to patient selection and diagnostic criteria. J Aging Res 2010; 2010:243752. [PMID: 21152196 PMCID: PMC2989753 DOI: 10.4061/2010/243752] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Revised: 08/05/2010] [Accepted: 08/23/2010] [Indexed: 11/20/2022] Open
Abstract
The aims of this study were to find out whether Postprandial hypotension (PPH) occurs more frequently in patients admitted to a geriatric ward than in healthy elderly individuals, what the optimal interval between blood pressure measurements is in order to diagnose PPH and how often it is associated with symptoms.The result of this study indicates that PPH is present in a high number of frail elderly, but also in a few healthy older persons. Measuring blood pressure at least every 10 minutes for 60 minutes after breakfast will adequately diagnose PPH, defined as >20 mmHg systolic fall, in most patients. However with definition of PPH as >30 mmHg systolic fall, measuring blood pressure every 10 minutes will miss PPH in one of three patients. With the latter definition of PPH the presence of postprandial complaints is not associated with the existence of PPH.
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Affiliation(s)
- Narender P Van Orshoven
- Department of Neurology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
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Luciano GL, Brennan MJ, Rothberg MB. Postprandial hypotension. Am J Med 2010; 123:281.e1-6. [PMID: 20193838 DOI: 10.1016/j.amjmed.2009.06.026] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Revised: 06/21/2009] [Accepted: 06/24/2009] [Indexed: 12/01/2022]
Abstract
Postprandial hypotension is both common in geriatric patients and an important but under-recognized cause of syncope. Other populations at risk include those with Parkinson disease and autonomic failure. The mechanism is not clearly understood, but appears to be secondary to a blunted sympathetic response to a meal. This review discusses the epidemiology, risk factors, and pathophysiology of postprandial hypotension in the elderly, as well as diagnosis and treatment strategies. Diagnosis can be made based on ambulatory blood pressure monitoring and patient symptoms. Lifestyle modifications such as increased water intake before eating or substituting 6 smaller meals daily for 3 larger meals may be effective treatment options. However, data from randomized, controlled trials are limited. Increased awareness of this disease may lead to improved quality of life, decreased falls and injuries, and the avoidance of unnecessary testing.
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Nakagawa K, Miyagawa Y, Takemura N, Hirose H. Effect of diet on the cardiovascular system in healthy beagles. J Vet Med Sci 2009; 72:615-9. [PMID: 20009430 DOI: 10.1292/jvms.09-0106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In management of canine cardiac disorders, cardiac drugs are commonly administered with food, although the cardiovascular effects of feeding and frequency of feeding are unknown. This study investigated the cardiovascular effect of feeding and frequency of feeding using a telemetry monitoring system in unanesthetized and unrestrained dogs. Systolic and diastolic blood pressure, heart rate and double product were steeply elevated during the five minutes immediately before feeding. They showed a sharp fall within 60 min after feeding time, especially the systolic and diastolic blood pressure, which showed lower values than from before feeding time. There were no significant differences in the means of preprandial elevation, postprandial fall or 24-hr averages in the once- and twice-daily feeding periods.
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Affiliation(s)
- Kiyoshi Nakagawa
- Nakagawa Animal Hospital, 5-16-29 Shin-machi, Nishitokyo-shi, Tokyo 202-0023, Japan.
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Apoplejía de adenoma hipofisario no funcionante tras anestesia espinal. A propósito de dos casos. Neurocirugia (Astur) 2009. [DOI: 10.1016/s1130-1473(09)70150-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Son JT, Lee E. Prevalence and Risk Factors of Postprandial Hypotension in Korean Elderly People. J Korean Acad Nurs 2009; 39:198-206. [DOI: 10.4040/jkan.2009.39.2.198] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jung Tae Son
- Associate Professor, Department of Nursing, Catholic University of Daegu, Daegu, Korea
| | - Eunjoo Lee
- Associate Professor, College of Nursing, Kyungpook National University, Daegu, Korea
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Moretti R, Torre P, Antonello RM, Manganaro D, Vilotti C, Pizzolato G. Risk factors for vascular dementia: hypotension as a key point. Vasc Health Risk Manag 2008; 4:395-402. [PMID: 18561514 PMCID: PMC2496988 DOI: 10.2147/vhrm.s2434] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Physiologically, the cerebral autoregulation system allows maintenance of constant cerebral blood flow over a wide range of blood pressure. In old people, there is a progressive reshape of cerebral autoregulation from a sigmoid curve to a straight line. This implies that any abrupt change in blood pressure will result in a rapid and significant change in cerebral blood flow. Hypertension has often been observed to be a risk factor for vascular dementia (VaD) and sometimes for Alzheimer disease although not always. Indeed, high blood pressure may accelerate cerebral white matter lesions, but white matter lesions have been found to be facilitated by excessive fall in blood pressure, including orthostatic dysregulation and postprandial hypotension. Many recent studies observed among other data, that there was a correlation between systolic pressure reduction and cognitive decline in women, which was not accounted for by other factors. Baseline blood pressure level was not significantly related to cognitive decline with initial good cognition. Some researchers speculate that blood pressure reduction might be an early change of the dementing process. The most confounding factor is that low pressure by itself might be a predictor of death; nevertheless, the effect of low blood pressure on cognition is underestimated because of a survival bias. Another explanation is that clinically unrecognized vascular lesions in the brain or atherosclerosis are responsible for both cognitive decline and blood pressure reduction. We discuss the entire process, and try to define a possible mechanism that is able to explain the dynamic by which hypotension might be related to dementia.
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Affiliation(s)
- Rita Moretti
- Department of Internal Medicine and Clinical Neurology, University of Trieste, Italy.
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Siennicki-Lantz A, Reinprecht F, Axelsson J, Elmståhl S. Cerebral perfusion in the elderly with nocturnal blood pressure fall. Eur J Neurol 2007; 14:715-20. [PMID: 17594325 DOI: 10.1111/j.1468-1331.2007.01805.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Cerebrovascular disease may be linked with vascular autoregulation in aging. The aim of this study was to examine relation between nocturnal blood pressure (BP) fall and cerebral blood flow (CBF) changes in elderly men. The prospective 'Men born in 1914' cohort study has been in progress since 1968 and included 809 subjects. After 14 years from the last follow up, 97 subjects reached the age of 82 and underwent CBF measurement and 24 h ambulatory blood pressure monitoring. Diastolic BP at night decreased in 84 subjects with median 12.7% and increased in 13 subjects with median 3.7%. Relative diastolic BP fall at night was negatively associated to CBF in temporal and infero-parietal areas. Higher proportion of subjects with increasing systolic BP during the 14-year period was observed in the subgroup with extreme nocturnal diastolic BP dip, irrespectively of BP values or prevalence of hypertension. Extreme nocturnal diastolic BP fall in a cohort of elderly men is correlated with focal changes in CBF. Further studies could explain if increasing BP in the elderly is a cause or result of pathological autoregulation, and if antihypertensive treatment increases nocturnal BP dip.
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Affiliation(s)
- A Siennicki-Lantz
- Department of Health Sciences, Division of Geriatric Medicine, Lund University, Malmö University Hospital, Malmö, Sweden.
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Lubart E, Segal R, Baumoehl Y, Matron M, Leibovitz A. Postprandial Hypotension in Long-Term Care Elderly Patients on Enteral Feeding. J Am Geriatr Soc 2006; 54:1377-81. [PMID: 16970645 DOI: 10.1111/j.1532-5415.2006.00839.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To examine the prevalence and nature of postprandial hypotension (PPH) in orally fed (OF), nasogastric tube (NGT)-fed, and percutaneous endoscopic gastrostomy (PEG)-fed older people. DESIGN Prospective comparative study. SETTING Nursing and skilled nursing wards of three geriatrics hospitals. PARTICIPANTS Three groups (OF, PEG, NGT) of long-term care patients (50 in each cohort) were enrolled. MEASUREMENTS Blood pressure (BP) and heart rate measurements were obtained just before lunch and at 15-minute intervals for 90 minutes after the completion of the meal. The meals were similar in caloric content and composition. RESULTS PPH was evidenced in 64 (43%) patients. No significant intergroup (OF, PEG, NGT) differences were present. In 68% of PPH patients, the systolic BP (SBP) drop appeared within 30 minutes, and 70% reached their systolic nadir at 60 minutes. In 31%, the SBP drop was registered on only one measurement, whereas in 25%, the drop was detected on five to six measurements. All parameters were without notable intergroup differences. CONCLUSION In enterally fed elderly patients (NGT or PEG), the rate and pattern of PPH are similar and not significantly different from that observed in OF patients.
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Affiliation(s)
- Emily Lubart
- Shmuel Harofe Geriatric Medical Center, Beer-Yaakov; and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Shimokata H, Ando F, Fukukawa Y, Nishita Y. Klotho gene promoter polymorphism and cognitive impairment. Geriatr Gerontol Int 2006. [DOI: 10.1111/j.1447-0594.2006.00335.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jansen RWMM. Postprandial hypotension: simple treatment but difficulties with the diagnosis. J Gerontol A Biol Sci Med Sci 2006; 60:1268-70. [PMID: 16282557 DOI: 10.1093/gerona/60.10.1268] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Chaves H, Campello de Souza FM, Krieger EM. The reproducibility of dipping status: beyond the cutoff points. Blood Press Monit 2005; 10:201-5. [PMID: 16077266 DOI: 10.1097/01.mbp.0000172709.05158.59] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A limited reproducibility has been ascribed to 24-h ambulatory blood pressure monitoring, especially in relation to the dipper and nondipper phenomena. This study examined the reproducibility of 24-h ambulatory blood pressure monitoring in three recordings of pressure at intervals of 8-15 days in 101 study participants (73% treated hypertensive patients) residing in the city of Recife, Pernambuco, Brazil. SpaceLabs 90207 monitors were used, and the minimum number of valid measurements was 80. No significant differences were found between the mean systolic and diastolic pressures, between the second and third recordings when the normotensive and hypertensive patients were assessed jointly (P=0.44). Likewise, no significant differences were present when the normotensive patients were analyzed separately (P=0.96). In the hypertensive group, a significant difference existed between only the first and second ambulatory blood pressure readings (135.1 vs. 132.9 mmHg, respectively; P=0.0005). Regarding declines in pressure during sleep, no significant differences occurred when continuous percentage values were considered (P=0.27). The values obtained from 24-h ambulatory blood pressure monitoring are reproducible when tested at intervals of 8-15 days. Small differences, when significantly present, always involved the first ambulatory blood pressure monitoring. The reproducibility of the dipper and nondipper patterns is of greater complexity because it considers cutoff points rather than continuous ones to characterize these states.
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Affiliation(s)
- Hilton Chaves
- Hypertension Clinic of the University Hospital, Universidade Federal de Pernambuco (UFPE), Rua do Progresso 465, Room 106, Boa Vista, Recife, PE 50.070-020, Brazil.
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Affiliation(s)
- J Birns
- Department of Stroke Medicine, Guy's, King's and St Thomas's School of Medicine, Denmark Hill Campus, Bessemer Road, London, UK
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Okuda Y, Tabara Y, Kondo I, Suyama K, Miki T, Kohara K. Delayed reflection pressure wave: new aspects for postprandial hypotension. J Am Geriatr Soc 2005; 53:1833-4. [PMID: 16181191 DOI: 10.1111/j.1532-5415.2005.53528_2.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Arterial hypertension (AH) is considered to be an important risk factor for vascular cognitive impairment and probably for Alzheimer's disease, too. In the current review we provide an overview of the major prospective clinical trials on this issue. With respect to the inconsistent findings of these studies one must state that the interrelations between AH and dementia are still incompletely understood. Regarding therapy there thus is a simple rule: AH should be treated until normal blood pressure values are reached. As long as the hypothesis of a J-curve between blood pressure and cognitive dysfunction has not been disproved, overaggressive blood pressure lowering cannot be recommended. Regarding the aim of preventing dementia, there is no evidence for the superiority of a specific antihypertensive treatment regimen.
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Affiliation(s)
- R Scheid
- Tagesklinik für kognitive Neurologie, Max-Planck-Institut für Kognitions- und Neurowissenschaften, Universität Leipzig, 04103 Leipzig.
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Maddens M, Imam K, Ashkar A. Hypertension in the Elderly. Prim Care 2005; 32:723-53. [PMID: 16140125 DOI: 10.1016/j.pop.2005.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Hypertension is predictive of a wide variety of subsequent adverse events in elderly patients, at least up to the age of 80 years. Treatment can reduce these adverse outcomes, although the benefits in the very elderly remain somewhat unclear. In the very elderly, there appears to be a reduction in cardiovascular events, but this reduction is perhaps at the expense of an increase in overall mortality. Target BPs in the elderly remain controversial. Among patients who have not had previous stroke or significant cardiovascular or renal disease, the benefits of reducing the SBP below 159 mm Hg are well documented. There is some evidence to suggest, however, that if doing so increases the day-night difference in BP by more than 20% or is associated with a decline in DBP below 65 mm Hg, then the benefits of treatment may be attenuated or lost. In addition, there is some suggestion that reducing SBP consistently below 135 mm Hg may accelerate cognitive decline. There appears to be a role for sodium restriction in those who can comply without otherwise compromising nutrient intake. Likewise, exercise may be beneficial and have benefits beyond simply lowering BP. Weight loss in those who are overweight may also help in lowering the BP. For most patients, low-dose thiazides such as hydrochlorothiazide are likely to be the appropriate first-line therapy (even in patients who have diabetes) unless they exacerbate or precipitate urinary incontinence or gout or complicate concomitant drug therapy (eg, lithium treatment of bipolar disorder). In very elderly patients, the apparent beneficial effects on strokes, major cardiovascular events, and heart failure rates may justify treating despite lack of benefit on overall mortality.
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Affiliation(s)
- Michael Maddens
- Division of Geriatric Medicine, William Beaumont Hospital, 3535 West 13 Mile Road, Suite 108, Royal Oak, MI 48073, USA.
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47
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Fisher AA, Davis MW, Le Couteur DG. The effect of meals at different mealtimes on blood pressure and symptoms in geriatric patients with postprandial hypotension. J Gerontol A Biol Sci Med Sci 2005; 60:184-5; author reply 185-6. [PMID: 15814859 DOI: 10.1093/gerona/60.2.184] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Maule S, Tredici M, Dematteis A, Matteoda C, Chiandussi L. Postprandial hypotension treated with acarbose in a patient with type 1 diabetes mellitus. Clin Auton Res 2004; 14:405-7. [PMID: 15666070 DOI: 10.1007/s10286-004-0220-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2004] [Revised: 07/07/2004] [Indexed: 10/25/2022]
Abstract
Treatment of postprandial hypotension (PPH) is often unsuccessful. We report a case of a type 1 diabetic patient suffering from severely symptomatic PPH. The patient was treated with acarbose and showed definite improvement of both glycemic control and PPH.
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Abstract
"Silent strokes" or "subclinical strokes" refer to incidental findings of strokes on neuroimaging studies, such as computed tomography or magnetic resonance imaging/diffusion-weighted imaging, that are asymptomatic. These include lacunar and other ischemic strokes and minor hemorrhages, particularly in "silent areas" of the brain, but also include leukoaraiosis due to small vessel pathology of a variety of origins. Clinicians need to appreciate their significance because with certain conditions, such as atrial fibrillation and significant carotid stenosis, follow-up of these patients shows an increased incidence of strokes, impaired cognitive function, and dementia. These serious consequences of subclinical strokes require the clinician to be vigilant and institute preventive strategies to avert these untoward outcomes.
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Affiliation(s)
- Frank M Yatsu
- The University of Texas at Houston Medical School, 6431 Fannin, MSB 7.044, Houston, TX 77030, USA.
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50
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Kario K, Shimada K. Risers and extreme-dippers of nocturnal blood pressure in hypertension: antihypertensive strategy for nocturnal blood pressure. Clin Exp Hypertens 2004; 26:177-89. [PMID: 15038628 DOI: 10.1081/ceh-120028556] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
There is increasing evidence that disruption of diurnal blood pressure (BP) variation is a risk factor for hypertensive target organ damage and cardiovascular events. Especially, the risers (extreme non-dippers), who exhibit a nocturnal BP increase compared with daytime BP, have the worst cardiovascular prognosis, both for stroke and cardiac events. On the other hand, extreme-dippers (with marked nocturnal BP falls) are at risk for non-fatal ischemic stroke and silent myocardial ischemia, particularly extreme-dippers complicated with atherosclerotic arterial stenosis and excessive BP reduction due to antihypertensive medication. Extreme-dipping status of nocturnal BP is closely associated with excessive morning BP surge and orthostatic hypertension. Hypertensive patients who have these conditions and exhibit marked BP variations are likely to have silent cerebral infarct and to be at high-risk with regard to future stroke. Individualized antihypertensive medication targeting disrupted diurnal BP variation might thus be beneficial for such high-risk hypertensive patients.
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Affiliation(s)
- Kazuomi Kario
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical School, Kawachi, Tochigi, Japan.
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