Diagnosis of acute myocardial infarction in the presence of left bundle branch block
Objective Patients with suspected acute myocardial infarction (AMI) in the setting of left bundle branch block (LBBB) present an important diagnostic and therapeutic challenge to the clinician. - Methods We prospectively evaluated the incidence of AMI and diagnostic performance of specific ECG and h...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
29 May 2019
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| In: |
Heart
Year: 2019, Jahrgang: 105, Heft: 20, Pages: 1559-1567 |
| ISSN: | 1468-201X |
| DOI: | 10.1136/heartjnl-2018-314673 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1136/heartjnl-2018-314673 Verlag, Volltext: https://heart.bmj.com/content/105/20/1559 
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| Verfasserangaben: | Thomas Nestelberger, Louise Cullen, Bertil Lindahl, Tobias Reichlin, Jaimi H. Greenslade, Evangelos Giannitsis, Michael Christ, Beata Morawiec, Oscar Miro, Francisco Javier Martín-Sánchez, Desiree Nadine Wussler, Luca Koechlin, Raphael Twerenbold, William Parsonage, Jasper Boeddinghaus, Maria Rubini Gimenez, Christian Puelacher, Karin Wildi, Tobias Buerge, Patrick Badertscher, Jeanne DuFaydeLavallaz, Ivo Strebel, Lukas Croton, Garnet Bendig, Stefan Osswald, John William Pickering, Martin Than, Christian Mueller, on behalf of the APACE, ADAPT and TRAPID-AMI investigators |
MARC
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| 245 | 1 | 0 | |a Diagnosis of acute myocardial infarction in the presence of left bundle branch block |c Thomas Nestelberger, Louise Cullen, Bertil Lindahl, Tobias Reichlin, Jaimi H. Greenslade, Evangelos Giannitsis, Michael Christ, Beata Morawiec, Oscar Miro, Francisco Javier Martín-Sánchez, Desiree Nadine Wussler, Luca Koechlin, Raphael Twerenbold, William Parsonage, Jasper Boeddinghaus, Maria Rubini Gimenez, Christian Puelacher, Karin Wildi, Tobias Buerge, Patrick Badertscher, Jeanne DuFaydeLavallaz, Ivo Strebel, Lukas Croton, Garnet Bendig, Stefan Osswald, John William Pickering, Martin Than, Christian Mueller, on behalf of the APACE, ADAPT and TRAPID-AMI investigators |
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| 520 | |a Objective Patients with suspected acute myocardial infarction (AMI) in the setting of left bundle branch block (LBBB) present an important diagnostic and therapeutic challenge to the clinician. - Methods We prospectively evaluated the incidence of AMI and diagnostic performance of specific ECG and high-sensitivity cardiac troponin (hs-cTn) criteria in patients presenting with chest discomfort to 26 emergency departments in three international, prospective, diagnostic studies. The final diagnosis of AMI was centrally adjudicated by two independent cardiologists according to the universal definition of myocardial infarction. - Results Among 8830 patients, LBBB was present in 247 (2.8%). AMI was the final diagnosis in 30% of patients with LBBB, with similar incidence in those with known LBBB versus those with presumably new LBBB (29% vs 35%, p=0.42). ECG criteria had low sensitivity (1%-12%) but high specificity (95%-100%) for AMI. The diagnostic accuracy as quantified by the receiver operating characteristics (ROC) curve of hs-cTnT and hs-cTnI concentrations at presentation (area under the ROC curve (AUC) 0.91, 95% CI 0.85 to 0.96 and AUC 0.89, 95% CI 0.83 to 0.95), as well as that of their 0/1-hour and 0/2-hour changes, was very high. A diagnostic algorithm combining ECG criteria with hs-cTnT/I concentrations and their absolute changes at 1 hour or 2 hours derived in cohort 1 (45 of 45(100%) patients with AMI correctly identified) showed high efficacy and accuracy when externally validated in cohorts 2 and 3 (28 of 29 patients, 97%). - Conclusion Most patients presenting with suspected AMI and LBBB will be found to have diagnoses other than AMI. Combining ECG criteria with hs-cTnT/I testing at 0/1 hour or 0/2 hours allows early and accurate diagnosis of AMI in LBBB. - Trial registration number APACE: NCT00470587; ADAPT: ACTRN12611001069943; TRAPID-AMI: RD001107;Results. | ||
| 650 | 4 | |a acute coronary syndromes | |
| 650 | 4 | |a acute myocardial infarction | |
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| 700 | 1 | |a Puelacher, Christian |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Buerge, Tobias |e VerfasserIn |4 aut | |
| 700 | 1 | |a Badertscher, Patrick |e VerfasserIn |4 aut | |
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