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Li L, Li Z, Li L, Wang Y, Zhang H. Significance of dynamic changes in the fragmented QRS complex in acute pulmonary embolism. Heart Lung 2024; 68:1-8. [PMID: 38861758 DOI: 10.1016/j.hrtlng.2024.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 05/14/2024] [Accepted: 05/31/2024] [Indexed: 06/13/2024]
Abstract
BACKGROUND Dynamic changes in the fQRS complex between the initial and follow-up ECG in patients with acute pulmonary embolism (APE) have rarely been studied. OBJECTIVE The purpose of this study was to investigate the significance of dynamic changes in the fragmented QRS complex in APE patients. METHODS APE patients (n = 222) were divided into three groups based on their ECG data to determine whether there were dynamic changes in the fQRS complex from admission to follow-up at one month: the fQRS shallower group (n = 49), fQRS deeper group (n = 25) and fQRS unchanged group (n = 148). Each patient was observed and followed for 12 months. RESULTS Cox multivariate logistic regression analysis indicated that the dynamic deeper fQRS complex was an independent predictor of long-term mortality (HR: 5.563, 95 % CI: 1.079-28.678, P = 0.040) in patients with APE. Kaplan-Meier curve analysis revealed that the event-free survival of the fQRS shallower group significantly increased relative to that of the fQRS deeper group and that of the fQRS deeper group significantly decreased relative to that of the fQRS unchanged group and shallower group (P = 0.022, P = 0.041). CONCLUSION Compared with the deeper fQRS complex, the dynamic shallower fQRS complex was an indicator of a good prognosis in APE patients, while the dynamic deeper fQRS complex indicated a poor prognosis. Dynamical changes in fQRS may assist clinicians in risk stratification and individualized treatment for APE, as well as in predicting APE regression or progression.
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Affiliation(s)
- Lin Li
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, PR China
| | - Zhe Li
- Department of health Examination, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, PR China
| | - Li Li
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, PR China.
| | - Ying Wang
- Department of Radiology, Shandong Provincial Hospital, Shandong University, Jinan, PR China
| | - Haizhou Zhang
- Department of cardiac surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, PR China
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2
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Küçükkelepçe O, Yılmaz E, Çamcı S. The Relationship between Fragmented QRS and Myocardial Injury in Patients with Acute Carbon Monoxide Poisoning. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:891. [PMID: 38929508 PMCID: PMC11205574 DOI: 10.3390/medicina60060891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 05/25/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024]
Abstract
Background and Objectives: Carbon monoxide (CO) intoxication is one of the most common causes of poisoning-related deaths and complications. Myocardial injury is an important complication of CO poisoning. In our study, we aimed to evaluate the relationship between the presence and prevalence of fragmented QRS (fQRS) and myocardial injury in patients with CO intoxication. Materials and Methods: We retrospectively evaluated patients who presented to the emergency department of our tertiary care center with CO intoxication between January 2020 and December 2023. In our study, we performed subgroup analyses according to the presence of myocardial injury and fQRS. We evaluated the parameters and risk factors associated with myocardial injury. Results: Myocardial injury was detected in 44 patients, and fQRS was detected in 38 patients. In the myocardial injury (+) group, the fQRS rate was 38.6%, and the median number of leads with fQRS was 3 (2-6) and was significantly higher than in the myocardial injury (-) group (p < 0.001). We found that carboxyhemoglobin had a significant positive correlation with troponin (p = 0.001) and pro-B-type natriuretic peptide (proBNP) (p = 0.009). As a result of multivariate analysis, we determined that age, creatinine, proBNP, fQRS, and ≥3 leads with fQRS are independent risk factors for myocardial injury. Conclusions: Myocardial injury in CO intoxication patients is associated with proBNP, the presence of fQRS, and the number of leads with fQRS. Age, creatinine level, proBNP, the presence of fQRS, and ≥3 leads with fQRS are independent risk factors for myocardial injury in patients with CO intoxication.
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Affiliation(s)
- Osman Küçükkelepçe
- Department of Public Health, Adıyaman Provincial Health Directorate, 02100 Adıyaman, Turkey
| | - Emre Yılmaz
- Department of Cardiology, Faculty of Medicine, Giresun University, 28100 Giresun, Turkey; (E.Y.); (S.Ç.)
| | - Sencer Çamcı
- Department of Cardiology, Faculty of Medicine, Giresun University, 28100 Giresun, Turkey; (E.Y.); (S.Ç.)
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3
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Maletin S, Petrović M, Stojšić-Milosavljević A, Miljković T, Milovančev A, Petrović I, Milosavljević I, Balenović A, Čanković M. The Role of QRS Complex and ST-Segment in Major Adverse Cardiovascular Events Prediction in Patients with ST Elevated Myocardial Infarction: A 6-Year Follow-Up Study. Diagnostics (Basel) 2024; 14:1042. [PMID: 38786340 PMCID: PMC11120035 DOI: 10.3390/diagnostics14101042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/29/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND as a relatively high number of ST-segment elevation myocardial infarction (STEMI) patients develop major adverse cardiovascular events (MACE) following percutaneous coronary intervention (PCI), our aim was to determine the significance, and possible predictive value of QRS complex width and ST-segment elevation. METHODS our patient sample included 200 PCI-treated STEMI patients, which were divided into two groups based on the following duration of symptoms: (I) less than 6 h, and (II) 6 to 12 h. For every patient, an ECG was performed at six different time points, patients were followed for up to six years for the occurrence of MACE. RESULTS the mean age was 60.6 ± 11.39 years, and 142 (71%) were male. The 6-12 h group had significantly wider QRS complex, higher ST-segment elevation, lower prevalence of ST-segment resolution as well as MACE prevalence (p < 0.05). ECG parameters, QRS width, and magnitude of ST-segment elevation were proved to be independent significant predictors of MACE in all measured time points (p < 0.05). Even after controlling for biomarkers of myocardial injury, these ECG parameters remained statistically significant predictors of MACE (p < 0.05). CONCLUSION our study highlights that wider QRS complex and a more pronounced ST-segment elevation are associated with longer total ischemic time and higher risk of long-term MACE.
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Affiliation(s)
- Srđan Maletin
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (S.M.); (M.P.); (A.S.-M.); (T.M.); (A.M.); (I.P.); (I.M.); (A.B.)
- Institute for Cardiovascular Diseases of Vojvodina, 21204 Sremska Kamenica, Serbia
| | - Milovan Petrović
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (S.M.); (M.P.); (A.S.-M.); (T.M.); (A.M.); (I.P.); (I.M.); (A.B.)
- Institute for Cardiovascular Diseases of Vojvodina, 21204 Sremska Kamenica, Serbia
| | - Anastazija Stojšić-Milosavljević
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (S.M.); (M.P.); (A.S.-M.); (T.M.); (A.M.); (I.P.); (I.M.); (A.B.)
- Institute for Cardiovascular Diseases of Vojvodina, 21204 Sremska Kamenica, Serbia
| | - Tatjana Miljković
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (S.M.); (M.P.); (A.S.-M.); (T.M.); (A.M.); (I.P.); (I.M.); (A.B.)
- Institute for Cardiovascular Diseases of Vojvodina, 21204 Sremska Kamenica, Serbia
| | - Aleksandra Milovančev
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (S.M.); (M.P.); (A.S.-M.); (T.M.); (A.M.); (I.P.); (I.M.); (A.B.)
- Institute for Cardiovascular Diseases of Vojvodina, 21204 Sremska Kamenica, Serbia
| | - Ivan Petrović
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (S.M.); (M.P.); (A.S.-M.); (T.M.); (A.M.); (I.P.); (I.M.); (A.B.)
| | - Isidora Milosavljević
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (S.M.); (M.P.); (A.S.-M.); (T.M.); (A.M.); (I.P.); (I.M.); (A.B.)
| | - Ana Balenović
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (S.M.); (M.P.); (A.S.-M.); (T.M.); (A.M.); (I.P.); (I.M.); (A.B.)
| | - Milenko Čanković
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (S.M.); (M.P.); (A.S.-M.); (T.M.); (A.M.); (I.P.); (I.M.); (A.B.)
- Institute for Cardiovascular Diseases of Vojvodina, 21204 Sremska Kamenica, Serbia
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Allescher J, Sinnecker D, von Goeldel B, Barthel P, Müller A, Hapfelmeier A, Martens E, Laugwitz K, Schmidt G, Steger A. QRS fragmentation does not predict mortality in survivors of acute myocardial infarction. Clin Cardiol 2024; 47:e24218. [PMID: 38269630 PMCID: PMC10797824 DOI: 10.1002/clc.24218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 01/03/2024] [Accepted: 01/08/2024] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND Despite advances in coronary revascularization and in heart failure management, myocardial infarction survivors remain at substantially increased mortality risk. Precise risk assessment and risk-adapted follow-up care are crucial to improve their outcomes. Recently, the fragmented QRS complex, i.e. the presence of additional spikes within the QRS complexes on a 12-lead electrocardiogram, has been discussed as a potential non-invasive risk predictor in cardiac patients. HYPOTHESIS The aim of this study was to evaluate the prognostic meaning of the fragmented QRS complex in myocardial infarction survivors. METHODS 609 patients with narrow QRS complexes <120 ms were included in a prospective cohort study while hospitalized for myocardial infarction and followed for 5 years. RESULTS The prevalence of the fragmented QRS complex in these patients amounted to 46.8% (285 patients). These patients had no increased hazard of all-cause death (HR 0.84, 95%-CI 0.45-1.57, p = 0.582) with a mortality rate of 6.0% compared to 7.1% in patients without QRS fragmentations. Furthermore, the risks of cardiac death (HR 1.28, 95%-CI 0.49-3.31, p = 0.613) and of non-cardiac death (HR 0.6, 95%-CI 0.26-1.43, p = 0.25) were not significantly different in patients with QRS fragmentations. However, patients with QRS fragmentations had increased serum creatine kinase concentrations (1438U/l vs. 1160U/l, p = 0.039) and reduced left ventricular ejection fractions (52% vs. 54%, p = 0.011). CONCLUSIONS The hypothesis that QRS fragmentation might be a prognostic parameter in survivors of myocardial infarction was not confirmed. But those with QRS fragmentation had larger myocardial infarctions, as measured by creatine kinase and left ventricular ejection fraction.
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Affiliation(s)
- Julia Allescher
- Klinik und Poliklinik für Innere Medizin I, University HospitalTechnical University of MunichMunichGermany
| | - Daniel Sinnecker
- Klinik und Poliklinik für Innere Medizin I, University HospitalTechnical University of MunichMunichGermany
- DZHK (German Centre for Cardiovascular Research)Partner Site Munich Heart AllianceMunichGermany
- Medizinisches Versorgungszentrum (MVZ) HarzGoslarGermany
| | - Bernhard von Goeldel
- Klinik und Poliklinik für Innere Medizin I, University HospitalTechnical University of MunichMunichGermany
| | - Petra Barthel
- Klinik und Poliklinik für Innere Medizin I, University HospitalTechnical University of MunichMunichGermany
| | - Alexander Müller
- Klinik und Poliklinik für Innere Medizin I, University HospitalTechnical University of MunichMunichGermany
| | - Alexander Hapfelmeier
- School of Medicine, Institute of AI and Informatics in MedicineTechnical University of MunichMunichGermany
- School of Medicine, Institute of General Practice and Health Services ResearchTechnical University of MunichMunichGermany
| | - Eimo Martens
- Klinik und Poliklinik für Innere Medizin I, University HospitalTechnical University of MunichMunichGermany
| | - Karl‐Ludwig Laugwitz
- Klinik und Poliklinik für Innere Medizin I, University HospitalTechnical University of MunichMunichGermany
- DZHK (German Centre for Cardiovascular Research)Partner Site Munich Heart AllianceMunichGermany
| | - Georg Schmidt
- Klinik und Poliklinik für Innere Medizin I, University HospitalTechnical University of MunichMunichGermany
- DZHK (German Centre for Cardiovascular Research)Partner Site Munich Heart AllianceMunichGermany
| | - Alexander Steger
- Klinik und Poliklinik für Innere Medizin I, University HospitalTechnical University of MunichMunichGermany
- DZHK (German Centre for Cardiovascular Research)Partner Site Munich Heart AllianceMunichGermany
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5
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Abuş S, Afşin A. Fragmented
QRS
in the relatives of patients with coronary artery disease. Ann Noninvasive Electrocardiol 2022; 27:e12970. [PMID: 35635797 PMCID: PMC9296784 DOI: 10.1111/anec.12970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/19/2022] [Accepted: 04/25/2022] [Indexed: 11/29/2022] Open
Abstract
Background Coronary artery disease (CAD) is one of the important causes of mortality. It has been emphasized that the risk of CAD may be increased in the relatives of CAD patients. Fragmented QRS (fQRS) is an electrocardiography (ECG) marker showing myocardial damage. Methods A study group of 62 symptomatic individuals (31 males, mean age 38.5 ± 7.12 years) with first‐degree relatives with coronary artery disease and 64 healthy volunteers (24 males, mean age 37.9 ± 11.6 years) were included in this study. The study did not include those with known cardiac disease, metabolic disease, or drug use that may cause a change in ECG parameters. Results There was no significant difference between the groups regarding gender, heart rate, QRS complex, QTc, frontal QRS‐T angle, and left ventricle ejection fraction. Compared to the control group, the QT interval and fQRS count were significantly higher in the study group (p < .05 for both). Low‐density lipoprotein cholesterol (LDL‐C), hemoglobin, and neutrophil counts were significantly higher in the study group compared to the control group (p < .05 for all). Conclusions Our study showed that fQRS was increased in individuals with symptomatic first‐degree relatives with coronary artery disease compared to healthy volunteers.
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Affiliation(s)
- Sabri Abuş
- Department of Cardiology Adıyaman University Training and Research Hospital Adıyaman Turkey
| | - Abdulmecit Afşin
- Department of Cardiology Adıyaman University Training and Research Hospital Adıyaman Turkey
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6
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Han X, Chen Z, Wang Y, Zhang J, Zhang Y, Su Q, Pan Z, Sun J, Wang Y. Prognostic significance of QRS distortion and frontal QRS-T angle in patients with ST-elevation myocardial infarction. Int J Cardiol 2021; 345:1-6. [PMID: 34715207 DOI: 10.1016/j.ijcard.2021.10.139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/27/2021] [Accepted: 10/22/2021] [Indexed: 01/17/2023]
Abstract
BACKGROUND QRS distortion (G3I) and frontal QRS-T angle (fQRS-T angle) are both electrocardiographic (ECG) signs of ongoing ischemia and depolarization-repolarization heterogeneity, which always occur in patients with ST-segment elevation acute myocardial infarction (STEMI). METHODS We retrospectively collected 592 STEMI patients who underwent coronary angiography and follow-up for 42 months. 1. We divided the patients into two groups according to whether they had G3I on admission, compared the differences in examination data and endpoint events between these two groups. 2. Group patients according to whether the endpoint events happened in hospital, at 12 and 42 months, compare whether there is a difference in fQRS-T angle at the same time point, and find out the predictive cutoff value of all-cause death. 3. Combined G3I and fQRS-T angle together to enhance the predictive value. RESULTS G3I and fQRS-T angle are both independent risk factors for all-cause death in STEMI patients within 12 months (G3I P = 0.014, fQRS-T angle P < 0.001) and within 42 months (P < 0.001). The cutoff values of fQRS-T angle for predicting all-cause death are 66.5° at 12 months and 90.5° at 42 months. When G3I and fQRS-T angle are combined used to predict the mortality, the specificity is significantly improved, but the sensitivity decreased. CONCLUSIONS G3I and fQRS-T angles are valuable in the prognostic assessment of STEMI patients, especially when combined. These findings help clinicians to identify high-risk patients early for more aggressive treatment.
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Affiliation(s)
- Xiaorong Han
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Zhongbo Chen
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Yinghui Wang
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Jin Zhang
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Ying Zhang
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Qiang Su
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Zhenghu Pan
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Jian Sun
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Yonggang Wang
- Department of Cardiovascular Center, Jilin University First Hospital, China.
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7
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Kewcharoen J, Trongtorsak A, Kittipibul V, Prasitlumkum N, Kanitsoraphan C, Putthapiban P, Mekraksakit P, Pattison RJ, Rattanawong P. Fragmented QRS predicts reperfusion failure and in-hospital mortality in ST-Elevation myocardial infarction: a systematic review and meta-analysis. Acta Cardiol 2020; 75:298-311. [PMID: 31021694 DOI: 10.1080/00015385.2019.1584696] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Objective: Recent studies have shown that fragmented QRS (fQRS) is associated with unfavourable outcomes in STEMI patients. However, there is controversy amongst studies. We performed a systematic review and meta-analysis to explore the effect of fQRS on reperfusion failure and in-hospital mortality among this population.Methods: We searched the databases of MEDLINE and EMBASE from inception to October 2018. Included studies were published cohort studies of STEMI patients that underwent primary percutaneous coronary intervention (pPCI) and thrombolysis. Data from each study were combined using the random-effects model.Results: Ten studies from January 2011 to October 2018 (2753 patients, 1075 patients with fQRS), were included. The fQRS was associated with higher risk of reperfusion failure in pPCI when defined by ST-segment resolution (OR = 3.08, 95% CI = 1.27-7.46, p-value = .013) but not when defined by TIMI flow grade (pooled OR = 1.45, 95% CI = 0.83-2.54, p-value = .192). In thrombolysis, fQRS was associated with higher risk of reperfusion failure when defined by both ST-segment resolution (pooled OR = 4.35, 95% CI = 1.80-10.49, p-value = .001) and TIMI flow grade (OR = 3.70, 95% CI = 2.10-6.53, p-value < .001). The fQRS was also associated with an increased risk of in-hospital mortality in both pPCI (pooled OR = 4.41, 95% CI = 1.60-12.16, p-value = .004) and thrombolysis (pooled OR = 2.38, 95% CI = 1.06-5.35, p-value = .036).Conclusions: Our meta-analysis demonstrated that fQRS in STEMI patients was associated with reperfusion failure as well as in-hospital mortality.
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Affiliation(s)
- Jakrin Kewcharoen
- University of Hawaii Internal Medicine Residency Program, Honolulu, HI, USA
| | | | | | - Narut Prasitlumkum
- University of Hawaii Internal Medicine Residency Program, Honolulu, HI, USA
| | | | | | | | - Robert J. Pattison
- University of Hawaii Internal Medicine Residency Program, Honolulu, HI, USA
| | - Pattara Rattanawong
- University of Hawaii Internal Medicine Residency Program, Honolulu, HI, USA
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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8
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Kamal D, Hashem M. Role of QRS fragmentation in 12-lead surface ECG in prediction of isolated epicardial coronary artery ectasia and its anatomical distribution in patients without acute coronary syndromes. Egypt Heart J 2020; 72:20. [PMID: 32297072 PMCID: PMC7158958 DOI: 10.1186/s43044-020-00054-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 03/25/2020] [Indexed: 12/22/2022] Open
Abstract
Background Coronary artery ectasia (CAE) is a form of abnormal coronary artery lumen dilatation associated with epicardial flow disturbances and microvascular dysfunction. QRS complex fragmentation (fQRS) in surface ECG is caused by abnormal depolarization due to myocardial ischemia and scarring. It has been proved in different studies to be positively correlated with adverse cardiac events. This study aimed to assess the role of fQRS as a non-invasive predictor of CAE and its anatomical distribution. A total of 100 patients referred for elective coronary angiography were included and divided into 2 groups: 50 patients with isolated CAE (group A) and 50 patients with angiographically normal coronaries (group B, control group). Both groups were compared regarding clinical, echocardiographic, and ECG characteristics. Results Univariate analysis showed a significant correlation between male sex, smoking, diabetes mellitus, increased systolic blood pressure, fQRS, echocardiographic evidence of diastolic dysfunction, and CAE (P values of 0.005, 0.002, 0.016, 0.027, 0.0001, and 0.04, respectively). Multivariate regression analysis showed that fQRS is the most important independent predictor for the presence of CAE (P < 0.00001) with sensitivity 94%, specificity 88%, PPV 88.7%, and NPV 93.6%. We also found a significant correlation between fQRS distribution in surface ECG and anatomical distribution of CAE [increased territories with multivessel affection (P = 0.00001), anterior leads with LAD affection (P = 0.00001), lateral and inferior leads with LCX affection (P = 0.003 and 0.04, respectively), inferior leads with RCA affection (P = 0.00001)]. Conclusion fQRS in surface ECG can potentially be used as an effective non-invasive method to predict isolated CAE and its anatomical distribution.
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Affiliation(s)
- Diaa Kamal
- Cardiology Department, Faculty of Medicine, Ain Shams University, Abbasia Street, Cairo, Egypt.
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9
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Prasitlumkum N, Sirinvaravong N, Limpruttidham N, Rattanawong P, Tom E, Kanitsoraphan C, Chongsathidkiet P, Boondarikpornpant T. Terminal QRS Distortion in ST Elevation Myocardial Infarction as a Prediction of Mortality: Systematic Review and Meta-Analysis. ACTA CARDIOLOGICA SINICA 2019; 35:445-458. [PMID: 31571793 DOI: 10.6515/acs.201909_35(5).20180909a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background Terminal QRS distortion reflects advanced stage and large myocardial infarction predisposing the heart to adverse outcomes. Recent studies suggest that terminal QRS distortion is associated with morbidity and mortality in ST elevation myocardial infarction (STEMI). However, a systematic review and meta-analysis of the literature have not been done. Objective We assessed the association between terminal QRS distortion in patients with STEMI and mortality by a systematic review of the literature and a meta-analysis. Methods We comprehensively searched the databases of MEDLINE and EMBASE from inception to September 2017. Included studies were published prospective or retrospective cohort studies that compared all-cause mortality in subjects with STEMI with QRS distortion versus those without QRS distortion. Data from each study were combined using the random-effects, generic inverse variance method of DerSimonian and Laird to calculate risk ratios and 95% confidence intervals. Results Fifteen studies from January 1993 to May 2015 were included in this meta-analysis involving 7,479 subjects with STEMI (2,906 QRS distortion and 4,573 non-QRS distortion). QRS distortion was associated with increased mortality (pooled risk ratio = 1.81, 95% confidence interval: 1.37-2.40, p < 0.000, I2 = 41.6%). Considering the introduction of clopidogrel in 2004, we performed subgroup analyses before and after 2004, and the associated with higher mortality was still present (before 2004, RR 1.75, 95% CI 1.08-2.82, p = 0.022, I2 = 66.1%; after 2004, RR 1.96, 95% CI 1.44-2.65, p < 0.001, I2 = 0%). Conclusions Terminal QRS distortion increased all-cause mortality by 81%. Our study suggests that terminal QRS distortion is an important tool to assess the risk in patients with STEMI.
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Affiliation(s)
| | | | | | - Pattara Rattanawong
- University of Hawaii Internal Medicine Residency Program, Honolulu, HI.,Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Elysse Tom
- University of Hawaii Internal Medicine Residency Program, Honolulu, HI
| | | | - Pakawat Chongsathidkiet
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.,Department of Pathology, Duke University Medical Center, Durham, North Carolina, USA
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10
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Xia W, Feng XY. Fragmented QRS (fQRS) Complex Predicts Adverse Cardiac Events of ST-Segment Elevation Myocardial Infarction Patients Undergoing Percutaneous Coronary Intervention and Thrombolysis. Med Sci Monit 2018; 24:4634-4640. [PMID: 29974889 PMCID: PMC6065281 DOI: 10.12659/msm.908712] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND ST-segment elevation myocardial infarction (STEMI) is an acute and life-threatening disease. Adverse cardiac events (ACEs) are defined as cardiovascular death or worsening congestive heart failure in STEMI patients. The present study investigated the predictive role of fragmented QRS complex (fQRS) in risks of ACEs in STEMI. MATERIAL AND METHODS This study was a retrospective analysis involving patients who underwent percutaneous coronary intervention (PCI) or thrombolysis. STEMI patients were divided into the fQRS group (259 cases) and the non-fQRS group (161 cases). Basic information and clinical parameters were evaluated. ACEs, including hemodynamic instability, electrical instability (ventricular tachycardia event, ventricular fibrillation or atrioventricular heart-block) and death, were observed. The 12-lead ECG was used to obtain fQRS recordings. Thrombolytic recanalization was evaluated to confirm clinical outcomes of PCI and thrombolysis therapy. RESULTS Hemodynamic instability rates, electrical instability rates, and death in the fQRS group were significantly higher compared to the non-fQRS group (P=0.002, 0.000, and 0.010, respectively). PCI triggered significantly fewer ACEs compared to thrombolytic therapy in the fQRS group (P=0.000, 0.000, and 0.019, respectively). The fQRS group had higher thrombolysis failure rates and three-vessel lesion of coronary artery rates compared to the non-fQRS group (P=0.009 and 0.029, respectively). There were no differences between fQRS and non-fQRS groups in death rates of STEMI patients undergoing PCI and thrombolytic therapy. GRACE scores more than 140, EF less than 35%, and fQRS illustrated predictive potential for ACEs of STEMI patients. CONCLUSIONS fQRS is an independent predictor for the adverse cardiac events of STEMI patients undergoing PCI or thrombolysis.
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Affiliation(s)
- Wei Xia
- Department of Cardiology, Tianjin First Center Hospital, Tianjin, China (mainland)
| | - Xiao-Yan Feng
- Dermatological Department, Tianjin Children's Hospital, Tianjin, China (mainland)
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11
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Tanriverdi Z, Eyuboglu M, Bingol Tanriverdi T, Nurdag A, Demirbag R. The relationship between fragmented QRS and non-dipper status in hypertensive patients without left ventricular hypertrophy. Clin Exp Hypertens 2017; 39:680-684. [PMID: 28657410 DOI: 10.1080/10641963.2017.1313855] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Fragmented QRS (fQRS) has been shown to be associated with poor outcome in various cardiovascular diseases. Non-dipper hypertension is also associated with increased cardiovascular mortality. The aim of our study is to investigate the relationship between fQRS and non-dipper status in hypertensive patients without left ventricular hypertrophy (LVH). METHODS This study included 106 hypertensive patients without LVH. Patients were divided into two groups: dipper hypertension and non-dipper hypertension. The presence of fQRS was analyzed from surface electrocardiography. RESULTS Frequency of fQRS (56% vs. 19.6%, p < 0.001) and mean number of leads with fQRS (1.9 ± 1.7 vs. 0.6 ± 1.0, p < 0.001) were significantly higher in patients with non-dipper hypertension compared to dipper hypertension. In addition, the number of leads with fQRS was positively correlated with systolic (r = 0.334, p < 0.001) and diastolic (r = 0.280, p = 0.004) blood pressures (BP). By a multivariate regression analysis, fQRS (OR: 5.207, 95% CI: 2.195-12.353, p < 0.001) was found to be independent predictor of non-dipper status. CONCLUSION fQRS is independent predictor of non-dipper status in hypertensive patients without LVH. Also, the higher number of leads with fQRS is associated with higher sleep systolic and diastolic BPs.
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Affiliation(s)
- Zulkif Tanriverdi
- a Clinic of Cardiology , Balikligol State Hospital , Sanliurfa , Turkey
| | - Mehmet Eyuboglu
- b Department of Cardiology , Avrupa Medicine Center , Karabaglar , Izmir , Turkey
| | - Tugba Bingol Tanriverdi
- c Department of Anesthesiology , Mehmet Akif Inan Training and Research Hospital , Sanliurfa , Turkey
| | - Abdullah Nurdag
- a Clinic of Cardiology , Balikligol State Hospital , Sanliurfa , Turkey
| | - Recep Demirbag
- d Department of Cardiology, Faculty of Medicine , Harran University , Sanliurfa , Turkey
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12
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Tanriverdi Z, Colluoglu T, Dursun H, Kaya D. The Relationship between neutrophil-to-lymphocyte ratio and fragmented QRS in acute STEMI patients treated with primary PCI. J Electrocardiol 2017. [PMID: 28623016 DOI: 10.1016/j.jelectrocard.2017.06.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND No study so far investigated fragmented QRS (fQRS) and neutrophil-to-lymphocyte ratio (NLR) together in ST segment elevation myocardial infarction (STEMI). OBJECTIVE To investigate the relationship between NLR and fQRS, and determine the prognostic significance of the combined use of these two parameters in STEMI. METHODS We included 368 patients with first acute STEMI who successfully revascularized with primary percutaneous coronary intervention. RESULTS Patients with fQRS had significantly higher NLR, and in-hospital mortality rate compared to patients with no-fQRS. The best cut-off value of NLR to predict mortality was 5.47. Patients with NLR≥5.47 had a higher frequency of fQRS and in-hospital mortality rate. Multivariate analysis showed that NLR was an independent predictor of the presence of fQRS (OR: 1.095, 95% CI: 1.039-1.153, P=0.001). When patients were stratified by fQRS and cut-off value of NLR, in-hospital mortality gradually increased (P<0.001). CONCLUSION NLR is independently associated with the presence of fQRS in STEMI patients. Combined use of both parameters provides additional prognostic contribution for identifying patients at higher cardiac risk.
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Affiliation(s)
| | - Tugce Colluoglu
- Department of Cardiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Huseyin Dursun
- Department of Cardiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Dayimi Kaya
- Department of Cardiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
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Tanriverdi Z, Dursun H, Colluoglu T, Kaya D. Do fQRS Onset Time and Number of Leads with fQRS Affect Prognosis of Acute Myocardial Infarction Patients? Ann Noninvasive Electrocardiol 2016; 21:532-3. [PMID: 27297051 DOI: 10.1111/anec.12382] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
| | - Huseyin Dursun
- Department of Cardiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Tugce Colluoglu
- Department of Cardiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Dayimi Kaya
- Department of Cardiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
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14
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Güngör B, Özcan KS, Karataş MB, Şahin İ, Öztürk R, Bolca O. Prognostic Value of QRS Fragmentation in Patients with Acute Myocardial Infarction: A Meta-Analysis. Ann Noninvasive Electrocardiol 2016; 21:604-612. [PMID: 27018003 DOI: 10.1111/anec.12357] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Accepted: 01/23/2016] [Indexed: 12/12/2022] Open
Abstract
AIMS Fragmented QRS has emerged as a novel electrocardiographic parameter associated with adverse clinical events in various diseases. The aim of this study was to investigate the association of fQRS with in-hospital and long-term cardiovascular events in patients with ST-segment elevation myocardial infarction (STEMI) and non-ST segment elevation myocardial infarction (NSTEMI). METHODS AND RESULTS We searched PubMed, Embase, Web of Science, and Cochrane Library up to October 2015 for eligible studies. We selected studies with fQRS defined with 12-lead ECG during the index hospitalization of STEMI/NSTEMI. Primary outcomes were in-hospital and long-term cardiovascular events. In-hospital mortality was significantly higher in fQRS (+) group (99/733; 13.5%) compared to fQRS (-) group (47/1293; 3.6%) (OR 4.03 95% CI 1.81-8.94; P = 0.0006). Long-term mortality rate was higher in fQRS (+) group (89/473; 18.8%) compared to fQRS (-) group (54/1009; 5.3%) (OR 3.93 95% CI 1.92-8.05; P = 0.0002). In addition the frequency of long-term MACE was higher in fQRS (+) group (46.9%) compared to fQRS (-) group (14.6%) (OR 5.13 95% CI 2.77-9.51; P < 0.00001) CONCLUSION: Presence of fQRS on admission ECG was found to be predictor of mortality, MACE, deterioration of LV function, and presence of multivessel disease in patients with STEMI and NSTEMI.
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Affiliation(s)
- Barış Güngör
- Department of Cardiology, Siyami Ersek Cardiovascular and Thoracic Surgery Center, Istanbul, Turkey
| | - Kazım Serhan Özcan
- Department of Cardiology, Derince Training and Research Hospital, Kocaeli, Turkey
| | - Mehmet Baran Karataş
- Department of Cardiology, Siyami Ersek Cardiovascular and Thoracic Surgery Center, Istanbul, Turkey.
| | - İrfan Şahin
- Department of Cardiology, Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Recep Öztürk
- Department of Cardiology, Siyami Ersek Cardiovascular and Thoracic Surgery Center, Istanbul, Turkey
| | - Osman Bolca
- Department of Cardiology, Siyami Ersek Cardiovascular and Thoracic Surgery Center, Istanbul, Turkey
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15
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Tanriverdi Z, Dursun H, Kaya D. The Importance of the Number of Leads with fQRS for Predicting In-Hospital Mortality in Acute STEMI Patients Treated with Primary PCI. Ann Noninvasive Electrocardiol 2015; 21:413-9. [PMID: 26568401 DOI: 10.1111/anec.12329] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 08/30/2015] [Accepted: 09/21/2015] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Fragmented QRS (fQRS) has been shown to be related to increased cardiovascular mortality and morbidity. However, limited data are available for evaluating the relationship between the number of leads with fQRS and in-hospital all-cause mortality in patients with acute ST segment elevation myocardial infarction (STEMI). The aim of our study is to investigate the prognostic importance of the number of leads with fQRS in acute STEMI patients treated by primary percutaneous coronary intervention (PCI). METHODS Two hundred ten eligible patients with acute STEMI that underwent primary PCI were enrolled in this study. Each patient's 12-lead electrocardiography (ECG) taken in the first 48 hours was analyzed and the number of leads with fQRS were recorded. RESULTS The number derivations with fQRS were significantly higher in patients who developed in-hospital mortality than the patients who did not develop in-hospital mortality (2.6 ± 2.6 vs 0.9 ± 1.3; P = 0.002). Also, patients with ≥3 leads with fQRS had higher rate of in-hospital all-cause mortality (23.5% vs 7.4%, P = 0.009), higher frequency of Q wave (67.6% vs 36.9%, P = 0.001), and higher frequency of fQRS with Q wave (67.6% vs 15.9%, P < 0.001) than those patients with <3 leads with fQRS. By a multivariate regression analysis, the number of leads with fQRS was found to be an independent predictor of in-hospital all-cause mortality (odds ratio: 1.415, 95% confidence interval: 1.049-1.909, P = 0.023). CONCLUSIONS The number of leads with fQRS on 12-lead ECG is an independent predictor of in-hospital all-cause mortality in patients with acute STEMI treated by primary PCI.
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Affiliation(s)
| | - Huseyin Dursun
- Department of Cardiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Dayimi Kaya
- Department of Cardiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
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Tanriverdi Z, Bingol T, Kaya D. Can the Number of Leads with fQRS Be Used as an Additional Tool to Detect Significant Coronary Artery Disease? Ann Noninvasive Electrocardiol 2015; 21:107-9. [PMID: 26514916 DOI: 10.1111/anec.12328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 09/22/2015] [Indexed: 11/28/2022] Open
Affiliation(s)
| | - Tugba Bingol
- Clinic of Anesthesia, Sirnak State Hospital, Sirnak, Turkey
| | - Dayimi Kaya
- Department of Cardiology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
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