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Sökning: L773:1555 7162

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11.
  • Eggers, Kai, 1962-, et al. (författare)
  • Prognostic Importance of Sex-Specific Cardiac Troponin T 99(th) Percentiles in Suspected Acute Coronary Syndrome
  • 2016
  • Ingår i: American Journal of Medicine. - : Elsevier BV. - 0002-9343 .- 1555-7162. ; 129:8
  • Tidskriftsartikel (refereegranskat)abstract
    • ObjectiveCardiac troponin levels differ between the sexes, with higher values commonly seen in men. The use of sex-specific troponin thresholds is, thus, subject of an ongoing debate. We assessed whether sex-specific cardiac troponin T (cTnT) 99th percentiles would improve risk prediction in patients admitted to Swedish coronary care units due to suspected acute coronary syndrome.MethodsIn this retrospective register-based study (48,250 patients), we investigated the prediction of all-cause mortality and the composite of cardiovascular death or nonfatal myocardial infarction within 1 year using the single 99th cTnT percentile (>14 ng/L) or sex-specific cTnT 99th percentiles (>16/9 ng/L).ResultsA total of 1078 men (3.0%) with cTnT 15-16 ng/L and 1854 women (8.4%) with cTnT 10-14 ng/L would have been reclassified regarding their cTnT status by the means of sex-specific 99th percentiles. The prevalence of cardiovascular risk factors and crude event rates increased across higher cTnT strata in both men and women. Multivariable-adjusted Cox models, however, did not demonstrate better risk prediction by sex-specific 99th percentiles. Assessing cTnT as a continuous variable demonstrated an increase in multivariable-adjusted risk starting at levels around 10-12 ng/L in both men and women.ConclusionsWe found no evidence supporting the use of sex-specific cTnT 99th percentiles in men and women admitted because of suspected acute coronary syndrome. This likely depends on sex-specific differences in disease mechanisms associated with small cTnT elevations. From a pragmatic perspective, a single cTnT cutoff slightly below 14 ng/L seems to be preferable as a threshold for medical decision-making.
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12.
  • Erhardt, Leif RW (författare)
  • Barriers to effective implementation of guideline recommendations.
  • 2005
  • Ingår i: The American journal of medicine. - : Elsevier BV. - 1555-7162 .- 0002-9343. ; 118 Suppl 12A:12, Suppl 1, s. 36-41
  • Tidskriftsartikel (refereegranskat)abstract
    • Cardiovascular disease (CVD) is the leading cause of death worldwide, and its prevention and treatment are important healthcare aims. Hypercholesterolemia is among the most important modifiable Rick factors for CVD, and numerous guidelines exist for the treatment of this condition. Nevertheless, despite the existence of well-established and safe pharmacologic therapy for lowering cholesterol and preventing CVD, surveys in the United States and Europe have revealed that many patients have elevated cholesterol levels. There is a clear gap between what is known about treating CVD and the implementation of that knowledge. A survey assessing patients' knowledge about CVD observed that many patients are unaware of the disease prevalence and have little knowledge about the main risk factors, including the importance of cholesterol. Another survey demonstrated that many physicians overestimate patients' awareness of CVD and that physicians also overestimate the extent to which guidelines are implemented in clinical practice. Guideline implementation may be improved by narrowing the discrepancies between what patients and physicians believe and the reality. Many physicians claim that lack of time hinders guideline implementation and improvement of patient education. Physicians also appear to lack the motivation to implement lipid-lowering interventions. A multifactorial approach to improving use of guidelines in clinical practice may improve the treatment and prevention of CVD.
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18.
  • Haanpaa, ML, et al. (författare)
  • Assessment of neuropathic pain in primary care
  • 2009
  • Ingår i: The American journal of medicine. - : Elsevier BV. - 1555-7162 .- 0002-9343. ; 122:1010 Suppl, s. S13-S21
  • Tidskriftsartikel (refereegranskat)
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20.
  • Hedman, Kristofer, 1984-, et al. (författare)
  • Limitations of Electrocardiography for Detecting Left Ventricular Hypertrophy or Concentric Remodeling in Athletes
  • 2020
  • Ingår i: American Journal of Medicine. - : Elsevier. - 0002-9343 .- 1555-7162. ; 133:1, s. 123-132.e8
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundElectrocardiography (ECG) is used to screen for left ventricular hypertrophy (LVH), but common ECG-LVH criteria have been found less effective in athletes. The purpose of this study was to comprehensively evaluate the value of ECG for identifying athletes with LVH or a concentric cardiac phenotype.MethodsA retrospective analysis of 196 male Division I college athletes routinely screened with ECG and echocardiography within the Stanford Athletic Cardiovascular Screening Program was performed. Left-ventricular mass and volume were determined using echocardiography. LVH was defined as left ventricular mass (LVM) > 102 g/m²; a concentric cardiac phenotype as LVM-to-volume (M/V) ≥ 1.05 g/mL. Twelve-lead electrocardiograms including high-resolution time intervals and QRS voltages were obtained. Thirty-seven previously published ECG-LVH criteria were applied, of which the majority have never been evaluated in athletes. C-statistics, including area under the receiver operating curve (AUC) and likelihood ratios were calculated.ResultsECG lead voltages were poorly associated with LVM (r = 0.18-0.30) and M/V (r = 0.15-0.25). The proportion of athletes with ECG-LVH was 0%-74% across criteria, with sensitivity and specificity ranging between 0% and 91% and 27% and 99.5%, respectively. The average AUC of the criteria in identifying the 11 athletes with LVH was 0.57 (95% confidence interval [CI] 0.56-0.59), and the average AUC for identifying the 8 athletes with a concentric phenotype was 0.59 (95% CI 0.56-0.62).ConclusionThe diagnostic capacity of all ECG-LVH criteria were inadequate and, therefore, not clinically useful in screening for LVH or a concentric phenotype in athletes. This is probably due to the weak association between LVM and ECG voltage.
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