Results 1 to 10 of about 32,658 (156)

Electrocardiographic QRS duration is influenced by body mass index and sex [PDF]

International Journal of Cardiology: Heart & Vasculature, 2021
Background: Electrocardiogram (ECG) measured QRS duration has been shown to influence cardiovascular outcomes. However, there is paucity of data on whether ECG QRS duration is influenced by obesity and sex in large populations.
Anupam C.A. Rao, Austin C.C. Ng, Raymond W. Sy, Karin K.M. Chia, Peter S. Hansen, Joseph Chiha, Jens Kilian, Logan B. Kanagaratnam   +7 more
doaj   +2 more sources

Sex and race differences in QRS duration [PDF]

Europace, 2016
The study investigated healthy subjects to study sex and race differences in QRS durations and the dependency of QRS durations on heart rates and other physiologic correlates.QRS duration and its heart rate dependency were evaluated in 420 615 electrocardiograms obtained in 523 healthy subjects including 111 females of African origin, 130 Caucasian ...
Peter Smetana
exaly   +3 more sources

Heritability and causality of QRS duration and chronic heart failure risk [PDF]

ESC Heart Failure
Aims Observational studies report conflicting results on the relationship between QRS duration and chronic heart failure (CHF), presenting challenges in establishing a causal link.
Zequn Zheng, Xinhan Li, Yongfei Song
doaj   +2 more sources

Assessment of QRS duration and presence of fragmented QRS in patients with celiac disease. [PDF]

Int J Med Sci
Background: Celiac Disease (CD) is characterized by small intestine involvement. However, cardiac manifestations may also be seen in the clinical course. The significance of the QRS prolongation and the presence of QRS fragmentation (fQRS) has been previously studied in many chronic inflammatory disorders as an independent predictor of cardiac ...
Güven İE, Candemir M.
europepmc   +3 more sources

Incremental changes in QRS duration as predictor for cardiovascular disease: a 21-year follow-up of a randomly selected general population [PDF]

Scientific Reports, 2021
The QRS complex has been shown to be a prognostic marker in coronary artery disease. However, the changes in QRS duration over time, and its predictive value for cardiovascular disease in the general population is poorly studied.
Xiaojing Chen, Per-Olof Hansson, Erik Thunström, Zacharias Mandalenakis, Kenneth Caidahl, Michael Fu   +5 more
doaj   +2 more sources

Evaluation of QRS duration and presence of fragmented QRS in patients with inflammatory bowel disease. [PDF]

Int J Med Sci
Background: Inflammatory Bowel Disease (IBD) is mostly characterized by gastrointestinal tract involvement, however can also be accompanied with cardiac manifestations. QRS prolongation and the presence of QRS fragmentation (fQRS) have been previously evaluated in many chronic inflammatory diseases, as an independent predictor of cardiac events.
Güven İE, Candemir M, Kayacetin E.
europepmc   +3 more sources

GWAS of QRS duration identifies new loci specific to Hispanic/Latino populations. [PDF]

PLoS ONE, 2019
BackgroundThe electrocardiographically quantified QRS duration measures ventricular depolarization and conduction. QRS prolongation has been associated with poor heart failure prognosis and cardiovascular mortality, including sudden death. While previous
Brenton R Swenson, Tin Louie, Henry J Lin, Raúl Méndez-Giráldez, Jennifer E Below, Cathy C Laurie, Kathleen F Kerr, Heather Highland, Timothy A Thornton, Kelli K Ryckman, Charles Kooperberg, Elsayed Z Soliman, Amanda A Seyerle, Xiuqing Guo, Kent D Taylor, Jie Yao, Susan R Heckbert, Dawood Darbar, Lauren E Petty, Barbara McKnight, Susan Cheng, Natalie A Bello, Eric A Whitsel, Craig L Hanis, Mike A Nalls, Daniel S Evans, Jerome I Rotter, Tamar Sofer, Christy L Avery, Nona Sotoodehnia   +29 more
doaj   +2 more sources

Combination of Left Ventricular End-Diastolic Diameter and QRS Duration Strongly Predicts Good Response to and Prognosis of Cardiac Resynchronization Therapy [PDF]

Cardiology Research and Practice, 2020
Background. Approximately 20–40% of recipients of cardiac resynchronization therapy (CRT) do not respond to it based on the current patient selection criteria.
Zhinian Guo, Xiaoyan Liu, Xiaofeng Cheng, Chuan Liu, Ping Li, Yongming He, Rongsheng Rao, Chun Li, Yunlong Chen, Yong Zhang, Xiaoyu Luo, Jiang Wang   +11 more
doaj   +2 more sources

The change of QRS duration after pulmonary valve replacement in patients with repaired tetralogy of Fallot and pulmonary regurgitation [PDF]

Korean Journal of Pediatrics, 2018
Purpose This study aimed to analyze changes in QRS duration and cardiothoracic ratio (CTR) following pulmonary valve replacement (PVR) in patients with tetralogy of Fallot (TOF).
Yuni Yun, Yeo Hyang Kim, Jung Eun Kwon
doaj   +1 more source

A network meta-analysis and systematic review of change in QRS duration after left bundle branch pacing, His bundle pacing, biventricular pacing, or right ventricular pacing in patients requiring permanent pacemaker

Scientific Reports, 2021
Cardiac dyssynchrony is the proposed mechanism for pacemaker-induced cardiomyopathy, which can be prevented by biventricular pacing. Left bundle branch pacing and His bundle pacing are novel interventions that imitate the natural conduction of the heart ...
Nithi Tokavanich, Narut Prasitlumkum, Wimwipa Mongkonsritragoon, Wisit Cheungpasitporn, Charat Thongprayoon, Saraschandra Vallabhajosyula, Ronpichai Chokesuwattanaskul   +6 more
doaj   +1 more source