ObjectiveThe decline in the incidence and mortality of acute myocardial infarction (AMI) has been less among younger compared with older individuals. The aim of this nationwide study was to assess the current incidence, risk factors and outcome of AMI in patients <45 years of age.MethodsAll patients ≤80 years of age registered in the Norwegian Myocardial Infarction Register in 2013–2016 were included in this observational, nationwide cohort study. Follow-up was conducted through linkage with the Norwegian Patient Registry through 2017.ResultsAmong a total of 33 439 patients ≤80 years with AMI, 1468 (4.4%) were <45 years old. The incidence of AMI was 2.1 per 100 000 person-years in people aged 20–29 years, 16.9 in people aged 30–39 years and 97.6 in people aged 40–49 years. Compared with older patients, patients <45 years were more likely to be male (81%), current smokers (56%), obese (30%) and have a family history of premature AMI (44%), and their low-density lipoprotein-cholesterol levels were higher. Patients <45 years were more likely to have non-obstructive coronary artery disease (14% vs 10%, p<0.001) compared with older patients. During a median follow-up time of 2.4 years, 135 (9%) patients <45 years experienced a new AMI, stroke or death, and 58 (4%) patients died.ConclusionsThe rate of AMI was low in people <45 years old in Norway, but almost one in ten patients with AMI <45 years old died or experienced a new cardiovascular event during follow-up. Increased efforts to improve risk factor control in these patients are warranted.
BackgroundSecondary preventive drug therapy following acute myocardial infarction (AMI) is recommended to reduce the risk of new cardiovascular events. The aim of this nationwide cohort study was to examine the initiation and long-term use of secondary preventive drugs after AMI.MethodsThe prescription of drugs in 42,707 patients < 85 years discharged alive from hospital after AMI in 2009–2013 was retrieved by linkage of the Norwegian Patient Register, the Norwegian Prescription Database, and the Norwegian Cause of Death Registry. Patients were followed for up to 24 months.ResultsThe majority of patients were discharged on single or dual antiplatelet therapy (91 %), statins (90 %), beta-blockers (82 %), and angiotensin-converting enzyme inhibitors (ACEI)/angiotensin receptor II blockers (ARB) (60 %). Patients not undergoing percutaneous coronary intervention (PCI) (42 %) were less likely to be prescribed secondary preventive drugs compared with patients undergoing PCI. This was particular the case for dual antiplatelet therapy (43 % vs. 87 %). The adherence to prescribed drugs was high: 12 months after index AMI, 84 % of patients were still on aspirin, 84 % on statins, 77 % on beta-blockers and 57 % on ACEI/ARB. Few drug and dose adjustments were made during follow-up.ConclusionGuideline-recommended secondary preventive drugs were prescribed to most patients discharged from hospital after AMI, but the percentage receiving such therapy was significantly lower in non-PCI patients. The long-time adherence was high, but few drug adjustments were performed during follow-up. More attention is needed to secondary preventive drug therapy in AMI patients not undergoing PCI.Electronic supplementary materialThe online version of this article (doi:10.1186/s12872-016-0283-6) contains supplementary material, which is available to authorized users.
The incidence of IE among children and adolescents with CHDs was higher than the reported incidence in the general population. IE was associated with severe CHDs and recent complex cardiac interventions, and had significant mortality.
Background Patients with established coronary artery disease (CAD) have an increased risk of new cardiovascular events. An underuse of secondary preventive drugs has been observed, and many patients may not attain the treatment goals for secondary prevention. The aims of the present nationwide register-based cohort study were to assess the degree of risk factor control and long-term outcomes in patients < 80 years with Type 1 myocardial infarction (MI) with and without prior CAD. Methods Data concerning all patients with MI admitted to hospitals in Norway from 2013 to 2016 were retrieved from the Norwegian Myocardial Infarction Register (NORMI). Long-term mortality was obtained through linkage with the Norwegian Cause of Death Registry . Results In total, 47,204 patients were registered in the NORMI from 2013 to 2016. Prior CAD was recorded in 7219 (25.2%) of the 28,607 patients < 80 years old with Type 1 MIs. On average, 3 of the 6 defined treatment targets for secondary preventive therapy were attained, and only 1% of the patients achieved all targets. Patients with MI and prior CAD had increased risk of death or new MI compared to patients without prior CAD during long-term follow-up (adjusted HR 1.6, 95% CI 1.5–1.7). Conclusions Prior CAD was frequent in patients with acute MI. The attainment of secondary preventive treatment targets in patients with MI and prior CAD was not optimal, and the long-term outcomes were reduced compared to patients without prior CAD. Increased efforts to improve risk factor control are needed.
The 1-year mortality of severe congenital heart defects among live births, 1994-2009, declined in Norway. The downward trend in mortality may be explained by a more frequent use of termination of affected pregnancies, and the reduced operative mortality of severe congenital heart defects.
This first report from the Norwegian Myocardial Infarction Registry shows that the treatment service is functioning well for most patients. Secondary prophylaxis using drug therapy and increased use of invasive examination of patients with nSTEMI appear to be areas for improvement.
Background. Heart rhythm disorders, especially atrial fibrillation (AF), are increasing global health challenges. Conventional diagnostic tools for assessment of rhythm disorders suffer from limited availability, limited test duration time, and usability challenges. There is also a need for out-of-hospital investigation of arrhythmias. Therefore, the Norwegian ECG247 Smart Heart Sensor has been developed to simplify the assessment of heart rhythm disorders. The current study aimed to evaluate the diagnostic accuracy and usability of the ECG247 Smart Heart Sensor compared to conventional Holter monitors. Methods. Parallel tests with ECG247 Smart Heart Sensor and a Holter monitor were performed in 151 consecutive patients referred for out-of-hospital long-term ECG recording at Sorlandet Hospital Arendal, Norway. All ECG data were automatically analysed by both systems and evaluated by hospital physicians. Participants were asked to complete a questionnaire scoring usability parameters after the test. Results. A total of 150 patients (62% men, age 54 (±17) years) completed the study. The ECG quality from both monitors was considered satisfactory for rhythm analysis in all patients. AF was identified in 9 (6%) patients during the period with parallel tests. The diagnostic accuracy for automatic AF detection was 95% (95% CI 91–98) for the ECG247 Smart Heart Sensor and 81% (95% CI 74–87) for the Holter system. The proportion of false-positive AF was 4% in tests analysed by the ECG247 algorithm and 16% in tests analysed by the Holter algorithm. Other arrhythmias were absent/rare. The system usability score was significantly better for ECG247 Smart Heart Sensor compared to traditional Holter technology (score 87.4 vs. 67.5, p < 0.001 ). Conclusions. The ECG247 Smart Heart Sensor showed at least comparable diagnostic accuracy for AF and improved usability compared to conventional Holter technology. ECG247 allows for prolonged monitoring and may improve detection of AF. This trial is registered with https://clinicaltrials.gov/ct2/show/NCT04700865.
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