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- Janszky, Imre, et al.
(författare)
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Hospitalization for depression is associated with an increased risk for myocardial infarction not explained by lifestyle, lipids, coagulation, and inflammation : The SHEEP study
- 2007
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Ingår i: Biological Psychiatry. - : Elsevier BV. - 0006-3223 .- 1873-2402. ; 62:1, s. 25-32
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundDepression is considered a risk factor for coronary heart disease (CHD) in initially CHD-free populations. Subclinical CHD or other somatic causes of depressive symptoms might account for the association, however.MethodsIn this case–control study, patients had had their first acute myocardial infarction (AMI). The study included 1799 cases, aged 45–70 years, and 2339, age-, gender-, and hospital-catchment-area-matched control subjects. We calculated odds ratios (OR) with 95% confidence intervals (CI) by multivariate logistic regressions to assess the AMI risk associated with a hospitalization for depression.ResultsForty-seven cases and 22 control subjects had been hospitalized for depression. After adjustment for matching criteria and socioeconomic status, the OR for AMI was 2.9 (1.8–4.9) for ever hospitalized for depression. Patients hospitalized for depression before or after the median time, 15 years and 2 months, between the first hospitalization for depression and AMI, were at similar risk. Adjustment for lifestyle, lipid profile, coagulation, inflammation, prior cardiovascular events, and comorbidity only partly decreased the observed association.ConclusionsDepression was associated with increased risk for AMI. Subclinical CHD or other somatic causes are unlikely to account for our findings, which also appear not to be explained by established risk factors for AMI.
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- Janszky, Imre, et al.
(författare)
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Increased risk and worse prognosis of myocardial infarction in patients with prior hospitalization for epilepsy : the Stockholm Heart Epidemiology Program
- 2009
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Ingår i: Brain. - : Oxford University Press (OUP). - 0006-8950 .- 1460-2156. ; 132:Pt 10, s. 2798-2804
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Tidskriftsartikel (refereegranskat)abstract
- The association of epilepsy with risk of acute myocardial infarction (AMI) remains uncertain, and its association with myocardial infarction prognosis has not been evaluated. In this study, we performed a population-based case-control study that included 1799 cases with first AMI and 2339 controls, frequency matched by age, sex and hospital catchment area. A history of epilepsy was identified using the Swedish hospital discharge registry. Information on lifestyle and biomarkers was determined from questionnaires and standardized clinic examinations. The cohort of cases was followed for 8 years to evaluate the relationship between epilepsy and post AMI prognosis. A diagnosis of epilepsy was associated with higher risk of incident AMI, with an odds ratio (OR) of 4.92 [95% confidence interval (CI) 2.34-10.31] after adjustment for age, gender, hospital catchment area, and education. There was a graded positive relation between number of hospitalizations for epilepsy and risk of AMI. Adjustment for smoking and levels of tissue plasminogen activator (tPA)/plasminogen activator inhibitor 1 (PAI-1) complex, von Willebrand factor and homocysteine weakened, and adjustment for high-density lipoprotein (HDL) and fibrinogen strengthened, the relationship between epilepsy and AMI. The OR for epilepsy was 4.83 (95% CI 1.62-14.43) when age, gender, hospital catchment area, education and established, clinically relevant AMI risk factors, i.e. diabetes mellitus, smoking, hypertension, physical activity, obesity, high-density lipoprotein, total cholesterol and alcohol consumption were simultaneously controlled for. Epilepsy was also associated with AMI prognosis. Multivariable adjusted hazard ratios for total and cardiac mortality and for a combined outcome of cardiac death and non-fatal reinfarction, heart failure and stroke during follow up, were 1.95 (0.70-5.43), 3.49 (1.05-11.65) and 2.39 (1.16-4.90), respectively. We conclude that epilepsy might be a risk and an adverse prognostic factor for AMI. Smoking and increase in the level of homocysteine, tPA/PAI-1 complex and von Willebrand factor are candidate mechanisms linking epilepsy to increased AMI risk. Physicians should be aware of the potential cardiovascular implications of epilepsy.
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- Janszky, Imre, et al.
(författare)
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Prognostic role of the glucometabolic status assessed in a metabolically stable phase after a first acute myocardial infarction : the SHEEP study
- 2009
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Ingår i: Journal of Internal Medicine. - : Wiley. - 0954-6820 .- 1365-2796. ; 265:4, s. 465-475
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVESOur objective was to examine fasting glucose and insulin levels in patients surviving 3 months after a first AMI in relation to long-term prognosis.DESIGNA total of 1167 consecutive patients between 45 and 70 years with a first nonfatal AMI underwent a standardized clinical examination and were followed for a mean of 8 years for total and cardiac mortality and hospitalization for nonfatal cardiovascular disease. Impaired fasting glucose (IFG) was defined as fasting glucose between 5.6 and 7 mmol L(-1) and a level >or=7 mmol L(-1) as newly detected diabetes. Patients with a fasting glucose level <5.6 mmol L(-1) and without a history of diabetes were classified as normoglycemic (NG). An estimate of insulin resistance was calculated using the homeostasis model assessment (HOMA).RESULTSWe recorded 219 deaths, 121 deaths from cardiac causes, during the follow-up period. After adjustment for several potential confounders, hazard ratios for total mortality were 1.36 (95% confidence interval 0.93-1.99, P=0.11), 2.27 (1.26-4.09, P=0.006) and 2.15 (1.43-3.21, P<0.001) for patients with IFG, newly detected diabetes and history of diabetes when compared to the NG group. Cardiac mortality, risk of hospitalization for recurrent nonfatal AMI, stroke or heart failure generally showed a similar pattern to that of total mortality. Insulin level and HOMA values were also associated with increased risk for recurrent events.CONCLUSIONSWe confirmed that both known and newly detected diabetes is a strong prognostic factor in AMI. In addition, our findings suggest that glucose levels below the diabetes cut off value might also predict poor long-term prognosis when assessed in a metabolically stable phase.
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- Leander, Karin, et al.
(författare)
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Primary risk factors influence risk of recurrent myocardial infarction/death from coronary heart disease : result from the Stockholm Heart Epidemiology program (SHEEP).
- 2007
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Ingår i: European Journal of Cardiovascular Prevention & Rehabilitation. - 1741-8267 .- 1741-8275. ; 14:4, s. 532-537
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUNDPrognosis after a first myocardial infarction (MI) is influenced by primary risk factors as well as secondary risk factors. There is still a lack of follow-up studies of well-characterized patient cohorts assessing the relative importance of these factors. DESIGNA cohort of 1635 patients (aged 45-70 years) surviving at least 28 days after a first MI were followed for 6-9 years with regard to recurrent MI/fatal coronary heart disease (CHD). Data were collected through questionnaires, physical examinations, and medical records. METHODSHazard ratios (HR) with 95% confidence intervals (CI) for different risk factors were calculated using the Cox proportional hazard model. RESULTSOf the primary risk factors, diabetes in both sexes was the most important predictor of recurrent MI/fatal CHD, multivariate-adjusted HR in men 1.6 (95% CI; 1.0-2.4) and in women 2.5 (95% CI; 0.9-6.9). Other primary risk factors with prognostic influence were job strain, HR 1.5 (95% CI; 1.0-2.1), and central obesity, HR 1.4 (95% CI; 1.0-2.0), in men and a low level of apolipoprotein A1, HR 2.3 (95% CI; 1.1-5.0), and high-density lipoprotein cholesterol, HR 1.9 (95% CI; 0.9-4.1), in women. The secondary risk factors most detrimental for prognosis were heart failure in men, HR 2.2 (95% CI; 1.2-4.0), and a high peak acute cardiac enzyme level in women, HR 4.4 (95% CI; 2.0-9.7). CONCLUSIONSLong-term follow-up of patients who survived at least 28 days after a first MI shows that several primary cardiovascular risk factors, particularly diabetes, contribute to the increased risk of recurrent MI/fatal CHD.
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- Mukamal, Kenneth J, et al.
(författare)
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Coffee consumption and mortality after acute myocardial infarction : the Stockholm Heart Epidemiology Program
- 2009
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Ingår i: American Heart Journal. - : Elsevier BV. - 0002-8703 .- 1097-6744. ; 157:3, s. 495-501
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUNDCohort studies have suggested little effect of coffee consumption on risk of acute myocardial infarction. The effect of coffee consumption on prognosis after myocardial infarction is uncertain.METHODSIn a population-based inception cohort study, we followed 1,369 patients hospitalized with a confirmed first acute myocardial infarction between 1992 and 1994 in Stockholm County, Sweden, as part of the Stockholm Heart Epidemiology Program. Participants reported usual coffee consumption over the preceding year with a standardized questionnaire distributed during hospitalization and underwent a health examination 3 months after discharge. Participants were followed for hospitalizations and mortality with national registers through November 2001.RESULTSA total of 289 patients died during follow-up. Compared with intake of <1 cup per day, coffee consumption was inversely associated with mortality, with multivariable-adjusted hazard ratios of 0.68 (95% confidence interval [CI] 0.45-1.02) for 1 to <3 cups, 0.56 (95% CI 0.37-0.85) for 3 to <5 cups, 0.52 (95% CI 0.34-0.83) for 5 to <7 cups, and 0.58 (95% CI 0.34-0.98) for > or =7 cups per day (P trend .06). Coffee intake was not associated with hospitalization for congestive heart failure or stroke. Candidate lipid and inflammatory biomarkers did not appear to account for the observed inverse association with mortality.CONCLUSIONSSelf-reported coffee consumption at the time of hospitalization for myocardial infarction was inversely associated with subsequent postinfarction mortality in this population with broad coffee intake. If confirmed in other settings, identification of relevant mechanisms could lead to an improved prognosis for survivors of acute myocardial infarction.
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- Möller, Jette, et al.
(författare)
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Work related stressful life events and the risk of myocardial infarction : Case-control and case-crossover analyses within the Stockholm heart epidemiology programme (SHEEP)
- 2005
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Ingår i: Journal of Epidemiology and Community Health. - : BMJ. - 0143-005X .- 1470-2738. ; 59:1, s. 23-30
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Tidskriftsartikel (refereegranskat)abstract
- STUDY OBJECTIVES:Recent changes in labour market conditions and in the organisation of work in developed societies have increased exposure to work related stress. The question is whether this also implies an increased risk of myocardial infarction, either through the triggering effect of acute stress, or through accumulation of stress over several months.DESIGN:A case-control and a case-crossover study design was applied.SETTING:The Stockholm heart epidemiology programme (SHEEP), in Stockholm County during 1992 to 1994.PARTICIPANTS:Patients with a first episode of non-fatal acute myocardial infarction, a total of 1381 men and women, responded to questionnaires and participated in interviews and health examinations.MAIN RESULTS:The case-crossover analysis showed triggering effects of sudden, short term situations of increased work load or work competition. Having "had a high pressure deadline at work" entailed a sixfold increase in risk of myocardial infarction (OR = 6.0 95% CI (1.8 to 20.4)) during the next 24 hours. The importance of work related life events as risk factors for myocardial infarction was supported by the case-control analysis. However, no support was found for the hypothesis that an accumulation of stressful life events over a period of 12 months increases the risk of myocardial infarction.CONCLUSION:Specific work related stressful life events seem to be potential triggers of the onset of myocardial infarction.
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