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Farhadi A, Emamat H, Nemati R, Marzban M, Shafiee G, Nabipour I, Ostovar A, Jalaliyan Z, Malekizadeh H, Larijani B. The association between continuous metabolic syndrome score and its components with electrocardiographic abnormalities in community-dwelling older adults: the Bushehr elderly health (BEH) program. BMC Cardiovasc Disord 2024; 24:81. [PMID: 38297215 PMCID: PMC10829232 DOI: 10.1186/s12872-024-03733-1] [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: 09/15/2022] [Accepted: 01/17/2024] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) known as a risk factor for cardiovascular diseases (CVDs) has developed into a major source of health issue, especially for the elderly. In the present study, we investigated the association between continuous MetS (cMetS) score and its components with electrocardiographic (ECG) abnormalities in the community-dwelling older adults. METHODS This cross-sectional study is derived from the second phase of BEH cohort study which is conducted on individuals aged over 60 years old. Standard 12-lead ECGs were recorded and coded by qualified physicians and continuous values of metabolic syndrome risk scores (cMetS) were measured. Data regarding socio-demographic, medical history, and lifestyle variables were collected by trained interviewers. The multinomial regression analysis was used to investigate the relationship between cMetS and its components with ECG abnormalities in the included participants. RESULTS 2426 individuals (mean age ± standard deviation: 69.30 ± 6.33 years) were included in the final analysis. Overall, 22.5% of the participants showed ECG abnormalities. Among these, 8.0% (n = 139) of participants had minor and 14.6% (n = 354) had major ECG abnormalities. In the final models, cMetS (OR = 1.04), mean arterial pressure (MAP((OR = 1.01), and higher fasting blood glucose (FBG) (OR = 1.01) increased the risk of ECG abnormalities (p < 0.05). Also, cMetS (OR = 1.05) and MAP (OR = 1.02) were associated with an increased risk of major ECG abnormalities (p < 0.05). CONCLUSION MetS and MAP were significantly associated with ECG abnormalities. The results of the present study suggest that ECG screening in the older population with MetS could potentially help to detect those at the higher risk of CVDs.
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Affiliation(s)
- Akram Farhadi
- The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Hadi Emamat
- The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Reza Nemati
- Department of Medical Emergencies, School of Allied Medical Sciences, Bushehr University of Medical Sciences, Bushehr, Iran
- Clinical Research Development Center, The Persian Gulf Martyrs Hospital, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Maryam Marzban
- Department of Biostatistics and Epidemiology, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran.
- Statistical Genetics Lab, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
| | - Gita Shafiee
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Iraj Nabipour
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Afshin Ostovar
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Hasan Malekizadeh
- School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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Tian WB, Zhang WS, Jiang CQ, Jin YL, Lam TH, Cheng KK, Xu L. Association of insulin resistance and glycemic measures with major abnormal electrocardiogram in older Chinese: Cross-sectional analysis based on the Guangzhou Biobank Cohort study. Diabetes Res Clin Pract 2024; 207:111046. [PMID: 38070543 DOI: 10.1016/j.diabres.2023.111046] [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: 08/07/2023] [Revised: 09/16/2023] [Accepted: 12/05/2023] [Indexed: 12/21/2023]
Abstract
AIMS To examine whether insulin resistance (IR) and glycemic measures were associated with major abnormal electrocardiogram (MA-ECG) and its specific abnormalities in the general population. METHODS Twelve-lead ECG measurements were performed on 21,720 participants without cardiovascular disease (5,918 men) from the Guangzhou Biobank Cohort Study. The participants were aged 50 years or above (mean age 61.6, standard deviation 7.1 years). Logistic regression was used to assess the associations of IR and glycemic measures with MA-ECG and specific abnormalities. RESULTS Ln-fasting insulin was significantly associated with MA-ECG and ST-T abnormalities (adjusted odds ratio = 1.52, 95 % confidence interval = 1.15-2.02 and 1.83, 1.37-2.45, respectively, for per standard deviation), which were stronger than those of TyG index with MA-ECG (1.08, 1.04-1.13) and ST-T abnormalities (1.16, 1.11-1.22). Ln-fasting insulin had association with Q wave abnormalities (3.19, 1.52-6.67). The association of TyG index with prolonged QTc varied by sex and obesity (P for interaction ≤ 0.01). Participants with diabetes had stronger associations of ln-fasting plasma glucose with ECG abnormalities than those without. CONCLUSIONS IR and glycemic measures were associated with MA-ECG, ischemia and prolonged QTc in older Chinese, especially in women, those with obesity, and those with diabetes. These findings underscore the importance of regular evaluations for these groups.
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Affiliation(s)
- Wen Bo Tian
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Wei Sen Zhang
- Guangzhou Twelfth People's Hospital, Guangzhou 510620, China.
| | | | - Ya Li Jin
- Guangzhou Twelfth People's Hospital, Guangzhou 510620, China
| | - Tai Hing Lam
- Guangzhou Twelfth People's Hospital, Guangzhou 510620, China; School of Public Health, the University of Hong Kong, Hong Kong
| | - Kar Keung Cheng
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Lin Xu
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; School of Public Health, the University of Hong Kong, Hong Kong.
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Cardiac age detected by machine learning applied to the surface ECG of healthy subjects: Creation of a benchmark. J Electrocardiol 2022; 72:49-55. [DOI: 10.1016/j.jelectrocard.2022.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/10/2022] [Accepted: 03/06/2022] [Indexed: 11/22/2022]
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Erelund S, Karp K, Wiklund U, Hörnsten R, Arvidsson S. Are ECG changes in heart-healthy individuals of various ages related to cardiac disease 20 years later? Ups J Med Sci 2021; 126:6064. [PMID: 34349886 PMCID: PMC8276345 DOI: 10.48101/ujms.v126.6064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 03/30/2021] [Accepted: 04/13/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND This research study aimed at assessing the electrocardiographic (ECG) changes caused by ageing in a cohort of healthy subjects with normal echocardiographic examinations. METHODS A total of 219 healthy individuals (119 males and 100 females) were evaluated for possible arrhythmias with a standard 12-lead resting ECG and 24-h Holter ECG. As the recordings were performed between 1998 and 2000, a 20-year follow-up study was carried out by assessing the local medical records to investigate whether the subjects had experienced any cardiovascular health complications or disease since the baseline assessment. RESULTS Eighty-three subjects (45 males and 38 females) presented with pathological ECG findings at baseline. The most common finding on analysis of Holter ECG recordings was premature atrial contractions, and the most severe pathological finding was episodes of ventricular tachycardia (eight subjects). Regarding the analysis of the standard 12-lead ECG, the most common finding was left ventricular hypertrophy, and the most severe pathological findings were ST-T changes and prolongation of the QT interval. Despite other cardiac examinations performed on these patients showing normal results, in combination with a strict inclusion criterion, this study showed that 28% of all subjects had pathological resting 12-lead ECGs at rest and 35% had pathological heart rhythms when assessed by 24-h Holter ECG. At follow-up, 21% of females and 43% of males had presented with ECG abnormalities, and 30% of females and 36% of males had cardiovascular disease. There was hypertension in 45% of females and in 58% of males. However, no association was found between the follow-up findings and ECG changes seen at baseline. CONCLUSION Although most ECG changes found at baseline could be considered as a normal variation, they may progress to more severe heart complications as the subject ages. The results of this study also validate ECG findings of previous studies and underline that diagnostic criteria should be based on gender and age.
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Affiliation(s)
- Sofia Erelund
- Department of Surgery and Perioperative Sciences, Umeå University, Umeå, Sweden
| | - Kjell Karp
- Department of Surgery and Perioperative Sciences, Umeå University, Umeå, Sweden
| | - Urban Wiklund
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Rolf Hörnsten
- Department of Surgery and Perioperative Sciences, Umeå University, Umeå, Sweden
| | - Sandra Arvidsson
- Department of Surgery and Perioperative Sciences, Umeå University, Umeå, Sweden
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Feitosa-Filho GS, Peixoto JM, Pinheiro JES, Afiune Neto A, Albuquerque ALTD, Cattani ÁC, Nussbacher A, Camarano AA, Sichinels AH, Sousa ACS, de Alencar Filho AC, Gravina CF, Sobral Filho DC, Pitthan E, Costa EFDA, Duarte EDR, Freitas EVD, Moriguchi EH, Mesquita ET, Fernandes F, Fuchs FC, Feitosa GS, Pierre H, Pereira Filho I, Helber I, Borges JL, Garcia JMDA, Souza JAGD, Zanon JCDC, Alves JDC, Mohallem KL, Chaves LMDSM, Moura LAZ, Silva MCAD, Toledo MADV, Assunção MELSDM, Wajngarten M, Gonçalves MJO, Lopes NHM, Rodrigues NL, Toscano PRP, Rousseff P, Maia RAR, Franken RA, Miranda RD, Gamarski R, Rosa RF, Santos SCDM, Galera SC, Grespan SMDS, Silva TCRD, Esteves WADM. Updated Geriatric Cardiology Guidelines of the Brazilian Society of Cardiology - 2019. Arq Bras Cardiol 2019; 112:649-705. [PMID: 31188969 PMCID: PMC6555565 DOI: 10.5935/abc.20190086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
| | - José Maria Peixoto
- Universidade José do Rosário Vellano (UNIFENAS), Belo Horizonte, MG - Brazil
| | | | - Abrahão Afiune Neto
- Universidade Federal de Goiás (UFG), Goiânia, GO - Brazil
- UniEVANGÉLICA, Anápolis, GO - Brazil
| | | | | | | | | | | | | | | | | | - Dario Celestino Sobral Filho
- Universidade de Pernambuco (UPE), Recife, PE - Brazil
- Pronto-Socorro Cardiológico Universitário de Pernambuco (PROCAPE), Recife, PE - Brazil
| | - Eduardo Pitthan
- Universidade Federal da Fronteira Sul (UFFS), Chapecó, SC - Brazil
| | - Elisa Franco de Assis Costa
- Sociedade Brasileira de Geriatria e Gerontologia (SBGG), Rio de Janeiro, RJ - Brazil
- Universidade Federal de Goiás (UFG), Goiânia, GO - Brazil
| | | | | | | | | | - Fábio Fernandes
- Instituto do Coração (Incor) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP - Brazil
- Departamento de Insuficiência Cardíaca (DEIC) da Sociedade Brasileira de Cardiologia (SBC), Rio de Janeiro, RJ - Brazil
| | - Felipe Costa Fuchs
- Universidade Federal do Rio Grande do Sul (UFRS), Porto Alegre, RS - Brazil
| | | | - Humberto Pierre
- Universidade Federal de São Paulo (UNIFESP), São Paulo, SP - Brazil
| | | | - Izo Helber
- Universidade Federal de São Paulo (UNIFESP), São Paulo, SP - Brazil
| | | | | | | | | | | | | | | | | | - Márcia Cristina Amélia da Silva
- Universidade de Pernambuco (UPE), Recife, PE - Brazil
- Pronto-Socorro Cardiológico Universitário de Pernambuco (PROCAPE), Recife, PE - Brazil
| | | | | | | | | | - Neuza Helena Moreira Lopes
- Instituto do Coração (Incor) da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP - Brazil
| | | | | | | | | | | | | | - Roberto Gamarski
- Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ - Brazil
| | | | | | | | | | | | - William Antonio de Magalhães Esteves
- Hospital Vera Cruz, Belo Horizonte, MG - Brazil
- Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, MG - Brazil
- Universidade de Itaúna, Itaúna, MG - Brazil
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Bhatt H, Gamboa CM, Safford MM, Soliman EZ, Glasser SP. Prevalence of electrocardiographic abnormalities based on hypertension severity and blood pressure levels: the Reasons for Geographic and Racial Differences in Stroke study. ACTA ACUST UNITED AC 2016; 10:702-713.e4. [PMID: 27461397 DOI: 10.1016/j.jash.2016.06.033] [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] [Received: 04/08/2016] [Revised: 05/13/2016] [Accepted: 06/15/2016] [Indexed: 10/24/2022]
Abstract
We evaluated the prevalence of major and minor electrocardiographic (ECG) abnormalities based on blood pressure (BP) control and hypertension (HTN) treatment resistance. We analyzed data from the Reasons for Geographic and Racial Differences in Stroke study of 20,932 participants who were divided into presence of major (n = 3782), only minor (n = 8944), or no (n = 8206) ECG abnormalities. The cohort was stratified into normotension (n = 3373), pre-HTN (n = 4142), controlled HTN (n = 8619), uncontrolled HTN (n = 3544), controlled apparent treatment-resistant HTN (aTRH, n = 400), and uncontrolled aTRH (n = 854) groups, and the prevalence ratios (PRs) of major and minor ECG abnormalities were assessed separately for each BP group. The full multivariable adjustment included demographics, risk factors, and HTN duration. Compared with normotension, the PRs of major ECG abnormalities for pre-HTN, controlled HTN, uncontrolled HTN, controlled aTRH, and uncontrolled aTRH groups were 1.01 (0.90-1.14), 1.30 (1.16-1.45), 1.37 (1.23-1.54), 1.42 (1.22-1.64), and 1.44 (1.26-1.65), respectively (P < .001), whereas the PRs of minor ECG abnormalities among each of the above BP groups were similar. Detection of major ECG abnormalities among hypertensive persons with poor control and treatment resistance may help improve their cardiovascular risk stratification and early intervention.
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Affiliation(s)
- Hemal Bhatt
- Division of Cardiovascular Disease, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA.
| | - Christopher M Gamboa
- Division of Preventive Medicine, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Monika M Safford
- Division of Preventive Medicine, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA; Division of General Internal Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Elsayed Z Soliman
- Division of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Stephen P Glasser
- Division of Preventive Medicine, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
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Efficacy of female rat models in translational cardiovascular aging research. J Aging Res 2014; 2014:153127. [PMID: 25610649 PMCID: PMC4294461 DOI: 10.1155/2014/153127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 12/05/2014] [Accepted: 12/05/2014] [Indexed: 01/11/2023] Open
Abstract
Cardiovascular disease is the leading cause of death in women in the United States. Aging is a primary risk factor for the development of cardiovascular disease as well as cardiovascular-related morbidity and mortality. Aging is a universal process that all humans undergo; however, research in aging is limited by cost and time constraints. Therefore, most research in aging has been done in primates and rodents; however it is unknown how well the effects of aging in rat models translate into humans. To compound the complication of aging gender has also been indicated as a risk factor for various cardiovascular diseases. This review addresses the systemic pathophysiology of the cardiovascular system associated with aging and gender for aging research with regard to the applicability of rat derived data for translational application to human aging.
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Delay and inequality in treatment of the elderly with suspected acute coronary syndrome. Int J Cardiol 2014; 176:946-50. [PMID: 25189499 DOI: 10.1016/j.ijcard.2014.08.109] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Revised: 08/06/2014] [Accepted: 08/17/2014] [Indexed: 11/22/2022]
Abstract
BACKGROUND/OBJECTIVES The aim of this study is to determine differences between elderly patients (≥80 years) and younger patients with suspected acute coronary syndrome (ACS) regarding delay times before diagnostic tests and treatments. METHODS All patients with chest pain who were admitted to a hospital in the Gothenburg area were included consecutively over a 3-month period. They were divided into an elderly group (≥80 years) and a reference group (<80 years). Previous medical history, ECG findings, treatments, diagnostic tests, and delay times were registered. RESULTS Altogether, 2588 patients were included (478 elderly and 2110 reference). There were no significant differences in delay time to hospital ward admission, to first medical therapy with aspirin, or to investigation with coronary angiography (CA) between the two groups. The elderly patients had a significantly shorter median time from first medical contact to first ECG (12 vs. 14 min, p=0.002) but after adjustment for confounding factors, especially mode of transport, the opposite was found to be the case (p=0.002). Elderly hospitalized patients with ACS were less often investigated with CA (44% vs. 89%, p<0.0001) and received less medical treatment with P2Y12 antagonists and lipid lowering drugs. CONCLUSIONS Elderly individuals with chest pain could not be shown to have a delay to hospital admission compared to their younger counterparts. Nevertheless, higher age was associated with a longer time to first ECG. The elderly patients received less active therapy, and fear of age-related side effects might explain this difference.
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Basile G, Cucinotta MD, Figliomeni P, Lo Balbo C, Maltese G, Lasco A. Electrocardiographic Changes in Centenarians: A Study on 42 Subjects and Comparison with the Literature. Gerontology 2012; 58:216-20. [DOI: 10.1159/000330801] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Accepted: 07/11/2011] [Indexed: 11/19/2022] Open
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Min LC, Wenger NS, Fung C, Chang JT, Ganz DA, Higashi T, Kamberg CJ, MacLean CH, Roth CP, Solomon DH, Young RT, Reuben DB. Multimorbidity is Associated With Better Quality of Care Among Vulnerable Elders. Med Care 2007; 45:480-8. [PMID: 17515774 DOI: 10.1097/mlr.0b013e318030fff9] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Older patients with multiple chronic conditions may be at higher risk of receiving poorer overall quality of care compared with those with single or no chronic conditions. Possible reasons include competing guidelines for individual conditions, burden of numerous recommendations, and difficulty implementing treatments for multiple conditions. OBJECTIVES We sought to determine whether coexisting combinations of 8 common chronic conditions (hypertension, coronary artery disease, chronic obstructive pulmonary disease, osteoarthritis, diabetes mellitus, depression, osteoporosis, and having atrial fibrillation or congestive heart failure) are associated with overall quality of care among vulnerable older patients. MATERIALS AND METHODS Using an observational cohort study, we enrolled 372 community-dwelling persons 65 years of age or older who were at increased risk for death or functional decline within 2 years. We included (1) a comprehensive measure (% of quality indicators satisfied) of quality of medical and geriatric care that accounted for patient preference and appropriateness in light of limited life expectancy and advanced dementia, and (2) a measure of multimorbidity, either as a simple count of conditions or as a combination of specific conditions. RESULTS : Multimorbidity was associated with greater overall quality scores: mean proportion of quality indicators satisfied increased from 47% for elders with none of the prespecified conditions to 59% for those with 5 or 6 conditions (P < 0.0001), after controlling for number of office visits. Patients with greater multimorbidity also received care that was better than would be expected based on the specific set of quality indicators they triggered. CONCLUSIONS Among older persons at increased risk of death or functional decline, multimorbidity results in better, rather than worse, quality of care.
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Affiliation(s)
- Lillian C Min
- David Geffen School of Medicine at UCLA, Los Angeles, California 90095-1687, USA.
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Electrocardiographic exercise stress testing: an update beyond the ST segment. Int J Cardiol 2006; 116:285-99. [PMID: 16837082 DOI: 10.1016/j.ijcard.2006.04.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2005] [Revised: 03/31/2006] [Accepted: 04/13/2006] [Indexed: 11/20/2022]
Abstract
Routine exercise testing is frequently ordered to evaluate a patient's cardiovascular performance. The test is more direct and less expensive than imaging technology, and derives valuable information. New variables such as dyspnea and heart rate recovery, as well as integrated scores, provide incremental value to conventional analysis of exercise-induced angina or electrocardiographic changes. Considerations relating to test accuracy in women need to be weighed. This paper seeks to make physicians aware of the current status of the test, and improve their understanding of and ability to integrate new variables and scores to more effectively manage their patients.
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Möller CS, Zethelius B, Sundström J, Lind L. Impact of follow-up time and re-measurement of the electrocardiogram and conventional cardiovascular risk factors on their predictive value for myocardial infarction. J Intern Med 2006; 260:22-30. [PMID: 16789975 DOI: 10.1111/j.1365-2796.2006.01642.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To explore if the predictive power of mid-life electrocardiogram (ECG) abnormalities and conventional cardiovascular risk factors for future myocardial infarction, change over a 30-year follow-up period and if repeated examination improves their predictive power. DESIGN AND SETTING Longitudinal population-based study. PARTICIPANTS A total of 2322 men aged 50 years, with a total follow-up period of 30 years and 1221 subjects were re-examined at age of 70 years. MAIN OUTCOME MEASURE Risk for fatal and nonfatal myocardial infarction (n = 470) analysed at age 50 and 70 years, and separately for 1-10, 11-20 and 21-30 years after first examination. Investigations included a 12-lead ECG, blood pressure, body mass index, smoking habits, and glucose and lipid variables. RESULTS Whilst high blood pressure and dyslipidaemia variables, such as apolipoprotein B/apolipoprotein A1 ratio, measured at age 50 showed an almost unchanged predictive power during the three decades of follow up, ECG abnormalities, insulin and BMI were only significant predictors during the two first decades of follow up. Despite increased prevalences of ECG abnormalities and obesity with age, they predicted for future myocardial infarction in midlife only whilst fasting insulin and smoking regained their predictive power when re-measured at age 70. CONCLUSION Whilst hypertension and dyslipidaemia were consistent as risk factors, length of follow-up period and age at baseline investigations affected the predictive power of ECG abnormalities, fasting insulin, BMI and smoking. In the elderly, ECG abnormalities did not contribute to the prediction of myocardial infarction but smoking and fasting insulin may be important in the pathophysiology leading to MI especially in this age group.
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Affiliation(s)
- Christina Ström Möller
- Department of Public Health and Caring Sciences/Geriatrics, Uppsala University, Uppsala, Sweden
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Barua P, O'Mahony MS. Overcoming gaps in the management of asthma in older patients: new insights. Drugs Aging 2006; 22:1029-59. [PMID: 16363886 DOI: 10.2165/00002512-200522120-00004] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Asthma is under-recognised and undertreated in older populations. This is not surprising, given that one-third of older people experience significant breathlessness. The differential diagnosis commonly includes asthma, chronic obstructive pulmonary disease (COPD), heart failure, malignancy, aspiration and infections. Because symptoms and signs of several cardiorespiratory diseases are nonspecific in older people and diseases commonly co-exist, investigations are important. A simple strategy for the investigation of breathlessness in older people should include a full blood count, chest radiograph, ECG, peak flow diary and/or spirometry with reversibility as a minimum. If there are major abnormalities on the ECG, an echocardiogram should also be performed. Diurnal variability in peak flow readings >or=20% or >or=15% reversibility in forced expiratory volume in 1 second, spontaneously or with treatment, support a diagnosis of asthma. Distinguishing asthma from COPD is important to allow appropriate management of disease based on aetiology, accurate prediction of treatment response, correct prognosis and appropriate management of the chest condition and co-morbidities. The two conditions are usually readily differentiated by clinical features, particularly age at onset, variability of symptoms and nocturnal symptoms in asthma, supported by the results of reversibility testing. Full lung function tests may not necessarily help in differentiating the two entities, although gas transfer factor is characteristically reduced in COPD and usually normal or high in asthma. Methacholine challenge tests previously mainly used in research are now also used widely and safely to confirm asthma in clinical settings. Interest in exhaled nitric oxide as a biomarker of airways inflammation is increasing as a noninvasive tool in the diagnosis and monitoring of asthma. Regular inhaled corticosteroids (ICS) are the mainstay of treatment of asthma. Even in mild disease in older adults, regular preventive treatment should be considered, given the poor perception of bronchoconstriction by older asthmatic patients. If symptoms persist despite ICS, addition of long-acting beta(2)-adrenoceptor agonists (LABA) should be considered. Addition of LABA to ICS improves asthma control and allows reduction in ICS dose. However, older people have been grossly under-represented in trials of LABA, many trials having excluded those >or=65 years of age. On meta-analysis, beta(2)-adrenoceptor agonists (both short acting and long acting) are associated with increased cardiovascular mortality and morbidity in asthma and COPD. While the evidence for excess cardiovascular mortality is stronger for short-acting beta(2)-adrenoceptor agonists, it would be prudent to exercise particular care in using beta(2)-adrenoceptor agonists (long acting and short acting) in those at risk of adverse cardiovascular outcomes, including older people. Regular review of cardiovascular status (and monitoring of serum potassium concentration) in patients taking beta(2)-adrenoceptor agonists is crucial. The response to LABA should be carefully monitored and alternative 'add-on' therapy such as leukotriene receptor antagonists (LRA) should be considered. LRA have fewer adverse effects and in individual cases may be more effective and appropriate than LABA. Long-term trials evaluating beta(2)-adrenoceptor agonists and other bronchodilator strategies are needed particularly in the elderly and in patients with cardiovascular co-morbidities. There is no evidence that addition of anticholinergics improves control of asthma further, although the role of long-acting anticholinergics in the prevention of disease progression is currently being researched. Older patients need to be taught good inhaler technique to improve delivery of medications to lungs, minimise adverse effects and reduce the need for oral corticosteroids. Nurse-led education programmes that include a written asthma self-management plan have the potential to improve outcomes.
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Affiliation(s)
- Pranoy Barua
- University Department of Geriatric Medicine, Academic Centre, Llandough Hospital, Cardiff, United Kingdom
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Dias da Silva VJ, Montano N, Salgado HC, Fazan Júnior R. Effects of long-term angiotensin converting enzyme inhibition on cardiovascular variability in aging rats. Auton Neurosci 2006; 124:49-55. [PMID: 16439186 DOI: 10.1016/j.autneu.2005.11.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2005] [Revised: 11/28/2005] [Accepted: 11/28/2005] [Indexed: 11/21/2022]
Abstract
We studied the effects of chronic (4 weeks) angiotensin converting enzyme inhibition with captopril on arterial pressure (AP) and heart rate (HR) variability, as well as on cardiac baroreflex sensitivity (BRS), in aged (20 months) rats. Series of basal RR interval (RRi) and systolic AP (SAP) were studied by autoregressive spectral analysis with oscillations quantified in low (LF: 0.2-0.8 Hz) and high frequency (HF: 0.8-2.5 Hz). BRS was measured by linear regression between HR and MAP changes. Captopril did not affect the spectra of RRi or SAP in young rats. Aged rats presented a reduction in variance (time domain) and in LF and HF oscillations of RRi and SAP. Captopril induced, in aged rats, a decrease in absolute and normalized LF oscillations and in LF/HF ratio of RRi. Captopril also reduced the variance, without changing its LF or HF components of SAP. Reflex tachycardia was reduced in aged as compared to young rats (-1.1+/-0.2 versus -3.4+/-0.5 bpm/mm Hg) and captopril did not affect it. Reflex bradycardia was also reduced in aged rats (-0.7+/-0.5 versus -2.0+/-0.4 bpm/mm Hg), but captopril prevented this attenuation in aged rats (-2.3+/-0.3 versus -0.7+/-0.5 bpm/mm Hg). These data indicate that there is a reduction in HR and SAP variability during aging, suggesting impairment of cardiovascular autonomic control. Captopril was able to change the power of oscillatory components of RRi, suggesting a shift in cardiac sympatho/vagal balance toward parasympathetic predominance. In addition, blockage of ACE improved the reflex bradycardia, but not the reflex tachycardia in aged rats.
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