ArticleEuropean heart journal. Acute cardiovascular care2023
Intraventricular conduction delays as a predictor of mortality in acute coronary syndromes.
Article in European heart journal. Acute cardiovascular care, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 5 citations in OpenAlex.
- Ischaemia-reperfusion time differences in ST-elevation myocardial infarction in very young patients: a cohort study.Open heart · 2025Article
- Impact of Newly Diagnosed Left Bundle Branch Block on Long-Term Outcomes in Patients with STEMI.Journal of clinical medicine · 2024Article
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Authors and funding
5 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
aimsInitial proof suggests that a non-specific intraventricular conduction delay (NIVCD) is a risk factor for mortality. We explored the prognosis of intraventricular conduction delays (IVCD)-right bundle branch block (RBBB), left bundle branch block (LBBB), and the lesser-known NIVCD-in patients with acute coronary syndrome (ACS). METHODS AND
resultsThis is a retrospective registry analysis of 9749 consecutive ACS patients undergoing coronary angiography and with an electrocardiographic (ECG) recording available for analysis (2007-18). The primary outcome was cardiac mortality. Mortality and cause of death data (in ICD-10 format) were received from the Finnish national register with no losses to follow-up (until 31 December 2020). The risk associated with IVCDs was analysed by calculating subdistribution hazard estimates (SDH; deaths due to other causes being considered competing events). The mean age of the population was 68.3 years [standard deviation (Sd) 11.8]. The median follow-up time was 6.1 years [interquartile range (IQR) 3.3-9.4], during which 3156 patients died. Cardiac mortality was overrepresented among IVCD patients: 76.9% for NIVCD (n = 113/147), 67.6% for LBBB (n = 96/142), 55.7% for RBBB (n = 146/262), and 50.1% for patients with no IVCD (n = 1275/2545). In an analysis adjusted for age and cardiac comorbidities, the risk of cardiac mortality was significantly higher in all IVCD groups than among patients with no IVCD: SDH 1.37 (1.15-1.64, P < 0.0001) for RBBB, SDH 1.63 (1.31-2.03 P < 0.0001) for LBBB, and SDH 2.68 (2.19-3.27) for NIVCD. After adjusting the analysis with left ventricular ejection fraction, RBBB and NIVCD remained significant risk factors for cardiac mortality.
conclusionRBBB, LBBB, and NIVCD were associated with higher cardiac mortality in ACS patients.
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