1. Collet J-P, Thiele H, Barbato E, Barthélémy O, Bauersachs J, Bhatt DL et al. 2020 ESC Guidelines for the management of acute coronary syndromes in patients presenting without persistent ST-segment elevation. European Heart Journal. 2021;42(14):1289–367. DOI: 10.1093/eurheartj/ehaa575
2. Knuuti J, Wijns W, Saraste A, Capodanno D, Barbato E, FunckBrentano C et al. 2019 ESC Guidelines for the diagnosis and management of chronic coronary syndromes. European Heart Journal. 2020;41(3):407–77. DOI: 10.1093/eurheartj/ehz425
3. Ibanez B, James S, Agewall S, Antunes MJ, Bucciarelli-Ducci C, Bueno H et al. 2017 ESC Guidelines for the management of acute myocardial infarction in patients presenting with ST-segment elevation: The Task Force for the management of acute myocardial infarction in patients presenting with ST-segment elevation of the European Society of Cardiology (ESC). European Heart Journal. 2018;39(2):119– 77. DOI: 10.1093/eurheartj/ehx393
4. Lev EI, Kornowski R, Vaknin-Assa H, Porter A, Teplitsky I, BenDor I et al. Comparison of the Predictive Value of Four Different Risk Scores for Outcomes of Patients With ST-Elevation Acute Myocardial Infarction Undergoing Primary Percutaneous Coronary Intervention. The American Journal of Cardiology. 2008;102(1):6–11. DOI: 10.1016/j.amjcard.2008.02.088
5. Maron BJ, Friedman RA, Kligfield P, Levine BD, Viskin S, Chaitman BR et al. Assessment of the 12-Lead ECG as a Screening Test for Detection of Cardiovascular Disease in Healthy General Populations of Young People (12–25 Years of Age): A Scientific Statement From the American Heart Association and the American College of Cardiology. Circulation. 2014;130(15):1303–34. DOI: 10.1161/CIR.0000000000000025
6. Wang DD, Tibrewala A, Nguygen P, Swadia T, Jacobsen G, Khan A et al. Fragmented QRS on surface electrocardiogram is not a reliable predictor of myocardial scar, angiographic coronary disease or long term adverse outcomes. Cardiovascular Diagnosis and Therapy. 2014;4(4):279–86. DOI: 10.3978/j.issn.2223-3652.2014.08.03
7. Bekler A. Relationship between presence of fragmented QRS on 12-lead electrocardiogram on admission and long-term mortality in patients with non-ST elevated myocardial infarction. Turk Kardiyoloji Dernegi Arsivi-Archives of the Turkish Society of Cardiology. 2014;42(8):726–32. DOI: 10.5543/tkda.2014.79438
8. Eyuboglu M, Ekinci MA, Karakoyun S, kucuk U, Senarslan O, Akdeniz B. Fragmented QRS for Risk Stratification in Patients Undergoing First Diagnostic Coronary Angiography. Arquivos Brasileiros de Cardiologia. 2016;107(4):299–304. DOI: 10.5935/abc.20160139
9. Cho HJ, Yoon JY, Kim N, Jang SY, Bae MH, Lee JH et al. Predictive value of a fragmented QRS complex in diagnosing patients with myocardial ischemia. Clinical Cardiology. 2019;42(3):379–84. DOI: 10.1002/clc.23148
10. Ozeke O, Cay S, Ozcan F, Karakurt M, Topaloglu S, Aras D. The fragmented QRS and epsilon wave in arrhythmogenic right ventricular dysplasia: Does before-and-after the end of the QRS complex matter? Pacing and Clinical Electrophysiology. 2018;41(9):1269–70. DOI: 10.1111/pace.13455
11. Ma L, Ma S, Lv J, Zhang Y, Liu Z, Bu P et al. Fragmented QRS complex on ECG is associated with ventricular arrhythmias in patients with a prior myocardial infarction. Acta Cardiologica. 2016;71(6):671–7. DOI: 10.1080/AC.71.6.3178185
12. Akbarzadeh F, Pourafkari, Ghaffari, Hashemi, Sadeghi-Bazargani H. Predictive value of the fragmented QRS complex in 6-month mortality and morbidity following acute coronary syndrome. International Journal of General Medicine. 2013;399. DOI: 10.2147/IJGM.S40050
13. Das MK, Michael MA, Suradi H, Peng J, Sinha A, Shen C et al. Usefulness of Fragmented QRS on a 12-Lead Electrocardiogram in Acute Coronary Syndrome for Predicting Mortality. The American Journal of Cardiology. 2009;104(12):1631–7. DOI: 10.1016/j.amjcard.2009.07.046
14. Umapathy S, Yadav R, Goswami KC, Karthikeyan G, Parakh N, Bahl VK. Prognostic significance of fragmented QRS in patients with ST-elevation myocardial infarction undergoing revascularization. Indian Heart Journal. 2018;70(Suppl 3):S126–32. DOI: 10.1016/j.ihj.2018.07.014
15. Russo C, Jin Z, Homma S, Rundek T, Elkind MSV, Sacco RL et al. Effect of diabetes and hypertension on left ventricular diastolic function in a high-risk population without evidence of heart disease. European Journal of Heart Failure. 2010;12(5):454–61. DOI: 10.1093/eurjhf/hfq022
16. Das MK, Khan B, Jacob S, Kumar A, Mahenthiran J. Significance of a Fragmented QRS Complex Versus a Q Wave in Patients With Coronary Artery Disease. Circulation. 2006;113(21):2495–501. DOI: 10.1161/CIRCULATIONAHA.105.595892
17. Hekmat S, Pourafkari L, Ahmadi M, Chavoshi MR, Zamani B, Nader ND. Fragmented QRS on surface electrocardiogram as a predictor of perfusion defect in patients with suspected coronary artery disease undergoing myocardial perfusion imaging. Indian Heart Journal. 2018;70(Suppl 3):S177–81. DOI: 10.1016/j.ihj.2018.09.011
18. Sadeghi R, Dabbagh V-R, Tayyebi M, Zakavi SR, Ayati N. Diagnostic value of fragmented QRS complex in myocardial scar detection: systematic review and meta-analysis of the literature. Kardiologia Polska. 2016;74(4):331–7. DOI: 10.5603/KP.a2015.0193
19. Mahfouz RA, Arab M, Abdelhamid M, Elzayat A. Fragmented QRS complex is an independent predictor of plaque burden in patients at intermediate risk of coronary artery disease. Indian Heart Journal. 2019;71(5):394–9. DOI: 10.1016/j.ihj.2019.11.254
20. Cetin M, Kocaman SA, Canga A, Durakoglugil ME, Erdogan T, Satiroglu O et al. The independent relationship between systemic inflammation and fragmented QRS complexes in patients with stable angina pectoris. Kardiologia Polska. 2012;70(7):668–75. PMID: 22825938
21. Korhonen P, Husa T, Konttila T, Tierala I, Mäkijärvi M, Väänänen H et al. Fragmented QRS in Prediction of Cardiac Deaths and Heart Failure Hospitalizations after Myocardial Infarction. Annals of Noninvasive Electrocardiology. 2010;15(2):130–7. DOI: 10.1111/j.1542-474X.2010.00353.x
22. Lorgis L, Jourda F, Hachet O, Zeller M, Gudjoncik A, Dentan G et al. Prognostic value of fragmented QRS on a 12-lead ECG in patients with acute myocardial infarction. Heart & Lung. 2013;42(5):326–31. DOI: 10.1016/j.hrtlng.2013.05.005
23. Shimizu M, Nishizaki M, Yamawake N, Fujii H, Sakurada H, Isobe M et al. J Wave and Fragmented QRS Formation During the Hyperacute Phase in Takotsubo Cardiomyopathy. Circulation Journal. 2014;78(4):943–9. DOI: 10.1253/circj.CJ-13-1296
24. Narayanan K, Zhang L, Kim C, Uy‐Evanado A, Teodorescu C, Reinier K et al. QRS Fragmentation and Sudden Cardiac Death in the Obese and Overweight. Journal of the American Heart Association. 2015;4(3):e001654. DOI: 10.1161/JAHA.114.001654
25. Meng L, Letsas KP, Baranchuk A, Shao Q, Tse G, Zhang N et al. Meta-analysis of Fragmented QRS as an Electrocardiographic Predictor for Arrhythmic Events in Patients with Brugada Syndrome. Frontiers in Physiology. 2017;8:678. DOI: 10.3389/fphys.2017.00678
26. Das MK, Saha C, El Masry H, Peng J, Dandamudi G, Mahenthiran J et al. Fragmented QRS on a 12-lead ECG: A predictor of mortality and cardiac events in patients with coronary artery disease. Heart Rhythm. 2007;4(11):1385–92. DOI: 10.1016/j.hrthm.2007.06.024
27. Canpolat U, Mohanty S, Trivedi C, Chen Q, Ayhan H, Gianni C et al. Association of fragmented QRS with left atrial scarring in patients with persistent atrial fibrillation undergoing radiofrequency catheter ablation. Heart Rhythm. 2020;17(2):203–10. DOI: 10.1016/j.hrthm.2019.09.010
28. Liu H, Jin Z, Yang S, Han W, Jing Q, Zhang L et al. Five-year outcomes of ST-elevation myocardial infarction versus non-ST-elevation acute coronary syndrome treated with biodegradable polymer-coated sirolimus-eluting stents: Insights from the CREATE trial. Journal of Cardiology. 2017;69(1):149–55. DOI: 10.1016/j.jjcc.2016.02.012
29. Montalescot G, Dallongeville J, Van Belle E, Rouanet S, Baulac C, Degrandsart A et al. STEMI and NSTEMI: are they so different? 1 year outcomes in acute myocardial infarction as defined by the ESC/ ACC definition (the OPERA registry). European Heart Journal. 2007;28(12):1409–17. DOI: 10.1093/eurheartj/ehm031
30. Hirsch A, Verouden NJW, Koch KT, Baan J, Henriques JPS, Piek JJ et al. Comparison of Long-Term Mortality After Percutaneous Coronary Intervention in Patients Treated for Acute ST-Elevation Myocardial Infarction Versus Those With Unstable and Stable Angina Pectoris. The American Journal of Cardiology. 2009;104(3):333–7. DOI: 10.1016/j.amjcard.2009.03.052
31. Richter B, Sulzgruber P, Koller L, Steininger M, El-Hamid F, Rothgerber DJ et al. Blood urea nitrogen has additive value beyond estimated glomerular filtration rate for prediction of long-term mortality in patients with acute myocardial infarction. European Journal of Internal Medicine. 2019;59:84–90. DOI: 10.1016/j.ejim.2018.07.019
32. Ogita M, Sakakura K, Nakamura T, Funayama H, Wada H, Naito R et al. Association between deteriorated renal function and long-term clinical outcomes after percutaneous coronary intervention. Heart and Vessels. 2012;27(5):460–7. DOI: 10.1007/s00380-011-0177-6