Observational studyIndian heart journal2018
Correlation of QRS duration with myocardial blush grade as a marker of myocardial reperfusion in primary percutaneous coronary intervention.
Observational study in Indian heart journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Intravenous metoprolol during ongoing STEMI ameliorates markers of ischemic injury: a METOCARD-CNIC trial electrocardiographic study.Basic research in cardiology · 2021Trial
- Article
- Electrocardiographic findings for predicting the left anterior descending artery chronic total occlusion in patients with inferior ST-segment elevation myocardial infarction.Scientific reports · 2024Article
- Article
- Clinical significance of R-wave amplitude in lead VAnnals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2024Article
- Utility of electrocardiogram to predict the occurrence of the no-reflow phenomenon in patients undergoing primary percutaneous coronary intervention (PPCI): a systematic review and meta-analysis.Frontiers in cardiovascular medicine · 2023Review
- Prognostic Value of Myocardial Blush Grade in ST-elevation MI: A Systematic Review and Meta-analysis.Interventional cardiology (London, England) · 2022Review
- Fragmented QRS and QRS Duration As a Marker of Myocardial Reperfusion Measured by Myocardial Blush Grade in Reperfusion Therapy: Systematic Review and Meta-Analysis.The International journal of angiology : official publication of the International College of Angiology, Inc · 2019Article
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Authors and funding
4 authors.
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Abstract
backgroundThe association between duration of QRS and myocardial reperfusion is not very well established. Our aim was to assess the relationship between measurements of QRS duration and myocardial blush grade (MBG) in patients with ST-elevation myocardial infarction (STEMI) who were treated with a primary percutaneous coronary intervention (PCI).
methodsBetween January 2016 and June 2017, 200 patients with STEMI who presented within 12 h of symptom onset and taken up for primary PCI were analyzed with electrocardiogram (ECG) before and after the procedure. Two study groups were then defined on the basis of microvascular perfusion: group A (MBG 0-1) and group B (MBG 2-3).
resultsGroup A had a total of 80 patients, and group B had 120 patients. The baseline characteristics were similar in the two groups. QRS duration was found to be longer in group A compared with group B at both the immediate ECG (95.5 ± 15.63 vs 80.87 ± 12.80 msec, p < 0.001, respectively) and at the 60th minute ECG (96.95 ± 16.2 vs 78.82 ± 12.08 msec, p < 0.001, respectively) post angioplasty. Significant difference was detected between the two groups post-angioplasty at both the immediate (10.99 ± 10.05 vs -6.64 ± 10.61 msec, p < 0.001) and the 60th minute (13.03 ± 11.64 vs -7.95 ± 11.11 msec, p < 0.001) ECG. Using receiver operator curve analysis, we found that QRS complex narrowing of 4.5 msec post angioplasty was the best cutoff value for predicting reperfusion.
conclusionQRS duration change post angioplasty is strongly correlated with the myocardial reperfusion in patients presenting with STEMI.
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