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Stoičkov V, Radovanović D, Deljanin-Ilić M, Perišić Z, Pavlović M, Tasić I, Stoičkov I, Golubović M, Scanlan AT, Jakovljević V, Stojanović E. Sport-related differences in QT dispersion and echocardiographic parameters in male athletes. Sci Rep 2023; 13:6770. [PMID: 37185606 PMCID: PMC10130053 DOI: 10.1038/s41598-023-33957-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 04/21/2023] [Indexed: 05/17/2023] Open
Abstract
The aim of this study was to compare QT dispersion (QTd) and echocardiographic parameters in male athletes competing across different sports (long-distance running, volleyball, football, powerlifting, and bodybuilding) and a control population. Significant moderate-strong differences (p < 0.001, [Formula: see text] = 0.52-0.71) were found in corrected QTd, intraventricular septal wall thickness (ISWT), posterior wall thickness (PWT), relative wall thickness (RWT) and LV (left ventricular) index between groups. Corrected QTd, ISWT, PWT, and RWT were significantly (p < 0.001) higher in powerlifters and bodybuilders compared to other athlete groups and controls. While all athlete groups displayed a significantly higher LV index (p < 0.05) compared to controls, corrected QTd was significantly lower (p < 0.001) only in long-distance runners, volleyball athletes, and football athletes compared to controls. Normal or eccentric LV hypertrophy (LVH) was observed in most long-distance runners (58% and 33%), volleyball athletes (50% and 50%), and football athletes (56% and 41%). In contrast, concentric LVH was observed in most powerlifters (58%) and bodybuilders (54%). Advanced LVH, predominantly concentric in nature, appears to be accompanied with increased QTd in powerlifters and bodybuilders. On the other hand, runners, volleyball athletes, and football athletes experienced LVH toward the upper threshold of the normal reference range alongside reduced QTd compared to other groups.
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Affiliation(s)
- Viktor Stoičkov
- Institute for Treatment and Rehabilitation "Niska Banja", Clinic for Cardiovascular Diseases, Niš, Serbia
- Faculty of Medicine, Department of Internal Medicine, University of Niš, Niš, Serbia
| | | | - Marina Deljanin-Ilić
- Institute for Treatment and Rehabilitation "Niska Banja", Clinic for Cardiovascular Diseases, Niš, Serbia
- Faculty of Medicine, Department of Internal Medicine, University of Niš, Niš, Serbia
| | - Zoran Perišić
- Faculty of Medicine, Department of Internal Medicine, University of Niš, Niš, Serbia
- Cardiovascular Diseases Clinic, Clinical Center Niš, Niš, Serbia
| | - Milan Pavlović
- Faculty of Medicine, Department of Internal Medicine, University of Niš, Niš, Serbia
- Cardiovascular Diseases Clinic, Clinical Center Niš, Niš, Serbia
| | - Ivan Tasić
- Institute for Treatment and Rehabilitation "Niska Banja", Clinic for Cardiovascular Diseases, Niš, Serbia
- Faculty of Medicine, Department of Internal Medicine, University of Niš, Niš, Serbia
| | | | - Mlađan Golubović
- Faculty of Medicine, Department of Internal Medicine, University of Niš, Niš, Serbia
- Cardiovascular and Transplant Surgery Clinic, Clinical Center Niš, Niš, Serbia
| | - Aaron T Scanlan
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Australia
| | - Vladimir Jakovljević
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Department of Human Pathology, Moscow State Medical University IM Sechenov, Moscow, Russia
| | - Emilija Stojanović
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia.
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Zhu L, Cui Q, Zhang Y, Liu F, Zhao J, Wang J. Sex-Specific Associations of Anxiety With Left Ventricular Hypertrophy and Transmural Dispersion of Repolarization in Hypertensive Patients. Front Cardiovasc Med 2022; 9:858097. [PMID: 35757339 PMCID: PMC9218101 DOI: 10.3389/fcvm.2022.858097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/12/2022] [Indexed: 11/17/2022] Open
Abstract
Background The previous studies have shown that individuals with hypertension and anxiety have a higher mean left ventricular mass index (LVMI) and QTc dispersion. We explored the associations between anxiety and left ventricular hypertrophy (LVH) and between anxiety and transmural dispersion of repolarization (TDR) (as detected by T peak-T end interval/QT interval, Tp–Te/QT ratio) in patients with hypertension. Methods A total of 353 patients with uncomplicated hypertension from the Shaanxi Provincial People’s Hospital were enrolled between 2017 and 2021. Anxiety was defined as a Hamilton Anxiety Scale (HAM-A) score ≥ 14. Logistic regression models were used to estimate the association between HAM-A and LVH. The association between HAM-A score and Tp–Te/QT was estimated using linear regression. Results Participants were divided into two groups based on the presence of anxiety. LVMI was significantly higher in patients with hypertension and anxiety than in those with hypertension without anxiety (no anxiety: 84.36 ± 23.82, anxiety: 105.75 ± 25.45 g/m2, p < 0.001). HAM-A score was positively correlated with LVMI (r = 0.578, p < 0.001) and with Tp–Te/QT (r = 0.252, p < 0.001). Logistic regression models showed that patients with hypertension and anxiety were at higher risk of LVH than were patients with hypertension without anxiety (adjusted OR, 2.44, 95% CI, 1.35–4.43, p = 0.003). The linear regression analysis showed that the HAM-A score was associated with Tp–Te/QT ratio (adjusted β, 0.001, 95% CI, 0.001–0.002, p = 0.013). There was an interaction between sex and anxiety for LVH risk (p for interaction = 0.035) and for increased Tp–Te/QT (p for interaction = 0.014). After stratification by sex, anxiety was associated with increased risk for LVH in men with hypertension (adjusted OR, 5.56, 95% CI, 2.07–14.98, p = 0.001), but not in women (adjusted: OR, 1.44, 95% CI, 0.64–3.26, p = 0.377) with hypertension. The HAM-A score was also positively associated with Tp–Te/QT ratio in male (adjusted β, 0.002, 95% CI, 0.001–0.003, p < 0.001), but not in women (adjusted β, 0.001, 95% CI, –0.0002–0.002, p = 0.165). Conclusion Our results indicated that anxiety was associated with LVH and with increased TDR in men with hypertension, but not in women with hypertension.
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Affiliation(s)
- Ling Zhu
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
- Department of Cardiology, The Third Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Qianwei Cui
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Yong Zhang
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Fuqiang Liu
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
- *Correspondence: Fuqiang Liu,
| | - Jingsha Zhao
- Department of Intensive Care Unit, Third People’s Hospital of Chengdu, Chengdu, China
- Jingsha Zhao,
| | - Junkui Wang
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
- Junkui Wang,
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Independent Influence of Blood Pressure on QTc Interval: Results from a General Chinese Population. BIOMED RESEARCH INTERNATIONAL 2019; 2019:1656123. [PMID: 31360702 PMCID: PMC6644263 DOI: 10.1155/2019/1656123] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/02/2019] [Indexed: 11/28/2022]
Abstract
Aims We performed the current study primarily to characterize the independent association of blood pressure with heart rate-corrected QT (QTc) interval after adjusting for cardiovascular confounding factors and left ventricular mass (LVM) in a large general population in China. Methods All enrolled 10,553 permanent residents with age ≥ 35 years from Liaoning Province were investigated by a questionnaire and then subjected to physical examinations, laboratory analyses, and electrocardiogram (ECG) as well as echocardiogram at the same visit. Multivariate linear and logistic regression analyses were conducted to assess the independent association of blood pressure with QTc interval. Results Hypertensive subjects had significantly longer QTc interval and higher prevalence of prolonged QTc interval compared with normotensive ones in all subgroups stratified by gender and left ventricular hypertrophy (LVH) (all Ps ≤ 0.001). Multiple relevant clinical confounding factors and LVM were all adjusted in the multivariate linear and logistic regression analyses. As a result, both systolic blood pressure (SBP) and diastolic blood pressure (DBP) were independently associated with QTc interval (β = 0.12 and 0.16, respectively; Ps < 0.001). Furthermore, as categorical variables, hypertension was independently associated with prolonged QTc interval (OR = 1.71; P < 0.001). Sex-specific analyses revealed that the independent associations were detected in both males and females (all Ps < 0.001). Conclusions These key findings of the current study highlighted the fact that hypertension was significantly associated with prolonged QTc interval and the correlations were independent of confounding factors and LVM.
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Alonso MAG, Lima VDACDC, Carreira MAMDQ, Lugon JR. Reproducibility and Reliability Of QTc and QTcd Measurements and Their Relationships with Left Ventricular Hypertrophy in Hemodialysis Patients. Arq Bras Cardiol 2017; 109:222-230. [PMID: 28793044 PMCID: PMC5586229 DOI: 10.5935/abc.20170112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 03/29/2017] [Indexed: 11/20/2022] Open
Abstract
Background Left ventricular hypertrophy (LVH) is very common in hemodialysis patients
and an independent risk factor for mortality in this population. The
myocardial remodeling underlying the LVH can affect ventricular
repolarization causing abnormalities in QT interval. Objective to evaluate the reproducibility and reliability of measurements of corrected
QT interval (QTc) and its dispersion (QTcd) and correlate these parameters
with LVH in hemodialysis patients. Methods Case-control study involving hemodialysis patients and a control group.
Clinical examination, blood sampling, transthoracic echocardiogram, and
electrocardiogram were performed. Intra- and interobserver correlation and
concordance tests were performed by Pearson´s correlation, Cohen’s Kappa
coefficient and Bland Altman diagram. Linear regression was used to analyze
association of QTc or QTcd with HVE. Results Forty-one HD patients and 37 controls concluded the study. Hemodialysis
patients tended to have higher values of QTc, QTcd and left ventricular mass
index (LVMi) than controls but statistical significance was not found.
Correlation and concordance tests depicted better results for QTc than for
QTcd. In HD patients, a poor but significant correlation was found between
QTc and LVMi (R2 = 0.12; p = 0.03). No correlation was found
between values of QTcd and LVMi (R2= 0.00; p=0.940). For the
control group, the correspondent values were R2= 0.00; p = 0.67
and R2= 0.00; p = 0.94, respectively. Conclusion We found that QTc interval, in contrast to QTcd, is a reproducible and
reliable measure and had a weak but positive correlation with LVMi in HD
patients.
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Affiliation(s)
| | | | | | - Jocemir Ronaldo Lugon
- Hospital Universitário Antônio Pedro - Universidade Federal Fluminense (UFF), Niterói, RJ - Brazil
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Diane A, Borthwick F, Wu S, Lee J, Brown PN, Dickinson TA, Croft KD, Vine DF, Proctor SD. Hypolipidemic and cardioprotective benefits of a novel fireberry hawthorn fruit extract in the JCR:LA-cp rodent model of dyslipidemia and cardiac dysfunction. Food Funct 2016; 7:3943-52. [PMID: 27538786 DOI: 10.1039/c6fo01023g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hawthorn is a widely used herbal alternative medicine for the treatment of various cardiovascular diseases. However, the attributed health benefits, purported to be due to the presence of phenolic compounds, may depend on both the specific species and plant part. Studies to date investigating effects of hawthorn on heart disease(s) have used well-described European and/or Asian species, while little is known regarding the bioactivity of species native to North America. Six weeks of supplementation of both fireberry hawthorn berry (native Crataegus chrysocarpa) and English hawthorn leaf (C. monogyna, naturalized in North America) in the JCR:LA-cp rat, resulted in a significant reduction in heart weight, fasting LDL-C and improved heart function (p < 0.05). Fasting triglyceride and myocardial fibrosis were also reduced, but only by the berry extract. We demonstrate that both of the Canadian-sourced hawthorn extracts (introduced leaf and native berry) have cardioprotective benefits, likely via increased availability of nitric oxide.
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Affiliation(s)
- Abdoulaye Diane
- Metabolic and Cardiovascular Diseases Laboratory, Molecular Cell Biology of Lipids Group, Alberta Diabetes and Mazankowski Heart Institutes, University of Alberta, Edmonton, Alberta, Canada.
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Khaledifar A, Momeni A, Hasanzadeh K, Amiri M, Sedehi M. Association of Corrected QT and QT Dispersion with Echocardiographic and Laboratory Findings in Uremic Patients under Chronic Hemodialysis. J Cardiovasc Echogr 2014; 24:78-82. [PMID: 28465910 PMCID: PMC5353447 DOI: 10.4103/2211-4122.143972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction: Cardiovascular disease is the most common cause of mortality in dialysis patients. Chronic renal failure and hemodialysis (HD) patients may have longer corrected QT (QTc) interval compared with the normal population. Long QTc interval may be a predictor of ventricular arrhythmia and cardiovascular mortality in these patients and hence the aim of this study was the evaluation of the relationship between QTc interval and some echocardiographic findings and laboratory exam results in HD patients. Materials and Methods: In a cross-sectional study, 60 HD patients with age >18 years and the dialysis duration >3 months were enrolled. Blood samples were taken, and electrocardiography and echocardiography were done before the dialysis session in the patients. Results: Mean age of the patients was 56.15 ± 14.6 years. QTc interval of the patients was 0.441 ± 0.056 s and QT dispersion (QTd) was 64.17 ± 25.93 ms. There was no statistically significant relationship between QTc interval and QTd with duration of dialysis, body mass index, age, and gender (P > 0.05). There was also no significant relationship between QTc interval and QTd with mitral regurgitation, tricuspid regurgitation and aortic insufficiency (P > 0.05). In addition, QTc interval and QTd of the patients had not any correlation with serum parathormon and serum Ca, K, HCO3 (P > 0.05). Conclusion: Based on our results, in HD patients, QTc interval and QTd were not correlated with echocardiographic findings or laboratory exam results. Therefore, it can be concluded that QTc interval prolongation probably has not any correlation with cardiac mortality of the HD patients.
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Affiliation(s)
- Arsalan Khaledifar
- Department of Internal Medicine, Nephrology Division, Shahrekord University of Medical Sciences, Iran
| | - Ali Momeni
- Department of Internal Medicine, Nephrology Division, Shahrekord University of Medical Sciences, Iran
| | - Katayoun Hasanzadeh
- Department of Internal Medicine, Nephrology Division, Shahrekord University of Medical Sciences, Iran
| | - Masoud Amiri
- Department of Epidemiology and Biostatistics, Social Health Determinants Research Center, Shahrekord University of Medical Sciences, Iran
| | - Morteza Sedehi
- Department of Biostatistics and Epidemiology, School of Health, Shahrekord University of Medical Sciences, Iran
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Kunisek J, Zaputovic L, Cubranic Z, Kunisek L, Zuvic Butorac M, Lukin-Eskinja K, Karlavaris R. Influence of the left ventricular types on QT intervals in hypertensive patients. Anatol J Cardiol 2014; 15:33-9. [PMID: 25179883 PMCID: PMC5336895 DOI: 10.5152/akd.2014.5134] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Objective: To investigate the possible electrophysiological background of the greater excitability of concentric and eccentric left ventricular hypertrophy types in relation to the asymmetric type. Methods: 187 patients with essential hypertension, without ishaemic heart disease were divided into three groups with regard to left ventricule type: concentric (relative wall thickness >0.42, interventricular septum/left ventricular posterior wall ≤1.3), eccentric (left ventricular diameter in systoles >32, relative wall thickness <0.42), asymmetric left ventricular hypertrophy (interventricular septum/left ventricular posterior wall >1.3), and three subgroups: mild (interventricular septum or left ventricular posterior wall 11-12 mm), moderate (interventricular septum or left ventricular posterior wall 13-14 mm) and severe left ventricular hypertrophy (interventricular septum or left ventricular posterior wall ≥15 mm). In all patients QT intervals, QT dispersion, left ventricular mass index and ventricular arrhythmias were measured. An upper normal limit for QT corrected interval: 450/460 ms for men/women; for QT dispersion: 70 ms. Results: The QT corrected interval and QT dispersion were increased in severe concentric and eccentric left ventricular hypertrophy (443 and 480 ms for QT corrected; 53 and 45 ms for QT dispersion, respectively), not significantly. QT dispersion in men with severe left ventricular hypertrophy was significantly enlarged (67.5 vs. 30 ms, p=0.047). QT interval was significantly longer in patients with complex ventricular arrhythmias (p=0.037). Conclusion: No significant association of QT intervals or QT dispersion with the degree/type of left ventricular hypertrophy was found. QT corrected interval and QT dispersion tend to increase proportionally to the left ventricular mass only in the concentric and eccentric type.
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Affiliation(s)
- Juraj Kunisek
- Thalassotherapia Crikvenica, Special Hospital for Medical Rehabilitation; Crikvenica-Croatia.
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AKYUZ AYDIN, ALPSOY SEREF, AKKOYUN DURSUNCAYAN, NALBANTOGLU BURCIN, OZDILEK BURCU, DONMA MUSTAFAMETIN. Does Low Birth Weight Affect P-Wave and QT Dispersion in Childhood? PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2013; 36:1481-7. [DOI: 10.1111/pace.12223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 05/02/2013] [Accepted: 05/30/2013] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - BURCIN NALBANTOGLU
- Department of Pediatrics; Namık Kemal University Medicine Faculty; Tekirdağ Turkey
| | - BURCU OZDILEK
- Department of Pediatrics; Namık Kemal University Medicine Faculty; Tekirdağ Turkey
| | - MUSTAFA METIN DONMA
- Department of Pediatrics; Namık Kemal University Medicine Faculty; Tekirdağ Turkey
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Abdal-Barr MG, Safwat M, Nammas W. Would corrected QT dispersion predict left ventricular hypertrophy in hypertensive patients? Blood Press 2012; 21:249-54. [PMID: 22428608 DOI: 10.3109/08037051.2012.668663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
AIMS We explored whether QT corrected dispersion (QTcD) can identify left ventricular hypertrophy (LVH) in hypertensives. METHODS We enrolled 100 hypertensive patients (study group) and 30 normotensive subjects (control group). Echocardiography was performed to measure left ventricular mass and left ventricular mass index. Electrocardiogram was performed to measure QTcD. RESULTS LVH was present in 42 patients (42%) of the study group, none among controls. Hypertensive patients had significantly greater indices of LVH and QTcD compared with controls (p <0.001 for all). Similarly, among hypertensive patients, those with LVH had a significantly greater QTcD compared with those without (p <0.001). Pearson's correlation coefficient test demonstrated strongly positive correlations between QTcD and the indices of LVH (p <0.001 for all). Analysis of the receiver operating characteristic curves identified 60 ms as the optimal cut-off value of QTcD that best predicts LVH in hypertensives. Using this value, QTcD was able to predict LVH with a sensitivity of 92.9% and specificity 98.2%. CONCLUSIONS QTcD is significantly increased in hypertensive patients with LVH compared with those without, being strongly correlated with the indices of LVH. A QTcD cut-off value of 60 ms predicted LVH in hypertensive patients with a high sensitivity and specificity.
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Abstract
Hypertensive heart disease is the target organ response to arterial hypertension. Left ventricular hypertrophy represents an important predictor for cardiovascular events. Myocardial fibrosis, a common end point in hypertensive heart disease, has been linked to the development of left ventricular hypertrophy and diastolic dysfunction. Echocardiography is clinically useful in the detection of left ventricular hypertrophy and the assessment of diastolic function. Although echocardiography is more widely available, cardiac magnetic resonance has been demonstrated to be more reproducible for the estimation of left ventricular mass. Future developments in cardiac magnetic resonance techniques may facilitate the quantification of diffuse fibrosis that occurs in hypertensive heart disease. Thus, advances in cardiac imaging provide comprehensive, noninvasive tools for imaging left ventricular hypertrophy, diastolic dysfunction, myocardial fibrosis and ischemia observed in hypertensive heart disease. The objective of this article is to summarize the state-of-the-art and the future of multimodality imaging of hypertensive heart disease.
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Affiliation(s)
- Rajesh Janardhanan
- Department of Medicine (Cardiology), Cardiovascular Imaging Center, University of Virginia Health System, 1215 Lee St., Box 800170, Charlottesville, VA 22908, USA
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Dogan Y, Soylu A, Eren GA, Poturoglu S, Dolapcioglu C, Sonmez K, Duman H, Sevindir I. Evaluation of QT and P wave dispersion and mean platelet volume among inflammatory bowel disease patients. Int J Med Sci 2011; 8:540-6. [PMID: 21960745 PMCID: PMC3180769 DOI: 10.7150/ijms.8.540] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Accepted: 08/02/2011] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND In inflammatory bowel disease (IBD) number of thromboembolic events are increased due to hypercoagulupathy and platelet activation. Increases in mean platelet volume (MPV) can lead to platelet activation, this leads to thromboembolic events and can cause acute coronary syndromes. In IBD patients, QT-dispersion and P-wave dispersion are predictors of ventricular arrhythmias and atrial fibrilation; MPV is accepted as a risk factor for acute coronary syndromes, we aimed at evaluating the correlations of these with the duration of disease, its localization and activity. METHODS The study group consisted of 69 IBD (Ulcerative colitis n: 54, Crohn's Disease n: 15) patients and the control group included 38 healthy individuals. Disease activity was evaluated both endoscopically and clinically. Patients with existing cardiac conditions, those using QT prolonging medications and having systemic diseases, anemia and electrolyte imbalances were excluded from the study. QT-dispersion, P-wave dispersion and MPV values of both groups were compared with disease activity, its localization, duration of disease and the antibiotics used. RESULTS The P-wave dispersion values of the study group were significantly higher than those of the control group. Duration of the disease was not associated with QT-dispersion, and MPV levels. QT-dispersion, P-wave dispersion, MPV and platelet count levels were similar between the active and in mild ulcerative colitis patients. QT-dispersion levels were similar between IBD patients and the control group. No difference was observed between P-wave dispersion, QT-dispersion and MPV values; with regards to disease duration, disease activity, and localization in the study group (p>0.05). CONCLUSIONS P-wave dispersion which is accepted as a risk factor for the development of atrial fibirilation was found to be high in our IBD patients. This demonstrates us that the risk of developing atrial fibrillation may be high in patients with IBD. No significant difference was found in the QT-dispersion, and in the MPV values when compared to the control group.
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Affiliation(s)
- Yuksel Dogan
- Department of Cardiology, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, Istanbul, Turkey.
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Pshenichnikov I, Shipilova T, Karai D, Riiupulk J, Veski K, Pilt K, Kaik J. Association between ventricular repolarization and main cardiovascular risk factors. SCAND CARDIOVASC J 2010; 45:33-40. [PMID: 21114455 DOI: 10.3109/14017431.2010.532232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To assess the association between QT interval, QT dispersion and main cardiovascular risk factors in Tallinn women population aged 50-69 years. DESIGN A random sample of Tallinn population, 302 women underwent 12-lead rest ECG, echocardiography and laboratory tests. Corrected QT interval and QT dispersion were calculated. RESULTS The significant correlation coefficients for corrected QT interval and dispersion were observed with systolic, diastolic, pulse pressure, blood pressure value grade, heart rate, left ventricular mass index, and total cardiovascular risk grade. According to the data of multiple logistic regression, risk factors independently associated with prolonged QTc and QTD were arterial hypertension: OR 2.69, p < 0.001 and OR 3.29, p < 0.001, pulse pressure ≥ 60 mm Hg: OR 2.62, p < 0.001 and OR 3.04, p < 0.001, age > 65 years: OR 2.44, p < 0.001 and OR 1.91, p < 0.01, family history of cardiovascular disease: OR 2.02, p < 0.01 and OR 2.48, p < 0.001, left ventricular hypertrophy: OR 2.78, p < 0.001 and OR 5.29, p < 0.001. Multivariable linear regression data showed an independent association between corrected QT interval, QT dispersion and systolic blood pressure: β = 0.32, p < 0.001 and β = 0.39, p=0.003, pulse pressure: β = 0.21, p = 0.004 and β = 0.27, p < 0.001, blood pressure value grade: β = 0.35, p < 0.001 (for QT dispersion only), heart rate: β = 0.21, p < 0.001 and β = -0.19, p = 0.001, left ventricular mass index: β = 0.23, p < 0.001 and β = 0.27, p < 0.001. CONCLUSION In Tallinn women population, electrocardiographic parameters reflecting ventricular repolarization are associated with systolic blood pressure, pulse pressure, blood pressure value grade, heart rate and left ventricular hypertrophy.
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Affiliation(s)
- Igor Pshenichnikov
- Centre of Cardiology, Technomedicum, Tallinn University of Technology, Tallinn, Estonia.
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Huang JH, Lin YQ, Pan NH, Chen YJ. Aging modulates dispersion of ventricular repolarization in the very old of the geriatric population. Heart Vessels 2010; 25:500-8. [PMID: 20936293 DOI: 10.1007/s00380-010-0026-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Accepted: 01/25/2010] [Indexed: 11/25/2022]
Abstract
Aging plays an essential role in cardiac pathophysiology. Knowledge on the ventricular repolarization in very old individuals is limited. An increase of QT dispersion is associated with higher cardiovascular mortality. The purpose of this study is to investigate whether aging changes the QT dispersion in the very old. Heart rate, P wave duration, PR interval, QRS axis, QRS duration, QT interval, and QTc interval were measured from 12-lead resting ECG. QT dispersion (46 ± 21, 47 ± 17, 69 ± 31 ms, p < 0.005) was significantly increased in the age group ≧85 years (n = 29, 89 ± 4 years) than in the age group 75-84 years (n = 33, 79 ± 3 years) and the age group 65-74 years (n = 32, 68 ± 3 years). Aging modulates dispersion of ventricular repolarization, which may contribute to the cardiac mortality in the very old Asian population.
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Affiliation(s)
- Jen-Hung Huang
- Division of Cardiovascular Medicine, Taipei Medical University-Wan Fang Hospital, 111, Hsin-Lung Road, Sec. 3, Taipei, Taiwan
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14
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Raman SV. The hypertensive heart. An integrated understanding informed by imaging. J Am Coll Cardiol 2010; 55:91-6. [PMID: 20117376 DOI: 10.1016/j.jacc.2009.07.059] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 06/16/2009] [Accepted: 07/20/2009] [Indexed: 12/22/2022]
Abstract
Clinical sequelae of hypertension include heart failure, arrhythmias, and ischemic events, especially myocardial infarction and stroke. Recognizing the hypertensive heart has diagnostic as well as prognostic implications. Current imaging techniques offer noninvasive approaches to detecting myocardial fibrosis, ischemia, hypertrophy, and disordered metabolism that form the substrate for hypertensive heart disease. In addition, recognition of aortopathy and atrial myopathy as contributors to myocardial disease warrant incorporation of aortic and atrial functional measurements into a comprehensive understanding of the hypertensive heart.
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Affiliation(s)
- Subha V Raman
- Department of Internal Medicine and Biomedical Informatics, The Ohio State University, Columbus, Ohio, USA.
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Dimopoulos S, Nicosia F, Turini D, Zulli R. Prognostic evaluation of QT-dispersion in elderly hypertensive and normotensive patients. Pacing Clin Electrophysiol 2009; 32:1381-7. [PMID: 19712075 DOI: 10.1111/j.1540-8159.2009.02510.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND QT-corrected interval dispersion (QTcD) is an indirect index of increased heterogeneity of ventricular repolarization. However, the prognostic value of (QTcD) in elderly hypertensive and normotensive patients has not been thoroughly investigated yet. METHODS The study population consisted of 60 consecutive patients (34 males/26 females; mean age: 63+/-11 years) with mild to moderate essential arterial hypertension and 48 consecutive age-matched healthy subjects (24 males/24 females; 65+/-16 years). QTcD was measured by a 12-lead electrocardiogram (ECG) as the difference between maximum and minimum QT-interval, corrected for heart rate. Ventricular arrhythmias were recorded by a 24-hour Holter ECG and classified by a modified Lown's score (range: 0-6). Left ventricular mass was measured echocardiographically and indexed by body surface area [left ventricular mass index (LVMI)]. Nine patients were lost during the follow-up period. Patients were followed up for 54+/-9 months, and the primary end-point was the major cardiovascular events (including cardiac mortality). RESULTS Major cardiovascular events occurred in 22 patients (22%). Patients with QTcD>or=45 ms (n=35) had a higher rate of major cardiovascular events (43% vs 11%; log rank: 14.8; P<0.001), a higher LVMI (146+/-29 vs 104+/-21 g/m2; P<0.001), greater values of systolic and diastolic blood pressure (154+/-16 vs 144+/-18 mmHg; P<0.01 and 92+/-10 vs 88+/-8 mmHg; P<0.05, respectively), a higher number of premature ventricular beats (354+/-870 vs 113+/-301; P<0.05), and a greater Lown's score (3.7+/-1.9 vs 1.4+/-1.8; P<0.05) than patients with QTcD<45 ms. QTcD (>or=or<45 ms) was an independent predictor of major cardiovascular events (odds ratio: 4.9; 95% confidence interval: 2.0-12.1; P=0.001) after adjustment for LVMI, Lown's score (>or=or<3), age (>or=or<65 years), and QTc max (>or=or<437 ms). CONCLUSIONS QTcD is an independent predictor of major cardiovascular events in elderly hypertensive and normotensive patients and might be used in their risk stratification.
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Affiliation(s)
- Stavros Dimopoulos
- Clinical Therapeutics, University of Athens, Alexandra Hospital, Athens, Greece.
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