Fragmentation of the QRS complex in patients with acute coronary syndrome treated invasively

Kardiologia polska
Alicja M DaszykBeata Średniawa

Abstract

Previous studies showed that the presence of fragmented QRS (f-QRS) in patients with acute coronary syndrome (ACS), who underwent complete revascularisation, is associated with worse prognosis and the possibility of arrhythmia occurrence. To assess the prognostic value of f-QRS in patients with ACS and complete revascularisation, in the context of cardiac ar-rhythmias. We analysed 124 consecutive patients (66.1% males; mean age 62.38 ± 11.0 years) with ACS (STEMI 49%) treated invasively. Based on electrocardiogram (ECG) record, performed during the admission to the clinic, after the complete revascularisation (TIMI = 3) and during discharging from hospital (4th-5th days after ACS), we classified QRS as f-QRS based on generally accepted criteria (QRS < 120 ms, which included an additional R wave [R']) or notching in the nadir of the S wave, or > 1 R' (fragmentation) in two contiguous leads, corresponding to a major coronary artery territory. 24-h Holter ECG recording was performed on the fifth day after ACS to assess the frequency of conduction disturbances and others arrhythmias. There were no statistically significant differences between patients with and without f-QRS during hospitalisation. In the patients with f-QRS there w...Continue Reading

Citations

Jul 25, 2020·The Egyptian Heart Journal : (EHJ) : Official Bulletin of the Egyptian Society of Cardiology·Ahmad Salah YounisNora Ismail Mohamed Abbas

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