Results 11 to 20 of about 1,320,837 (260)

Relationship between duration of QRS complex in ECG and echocardiographic ejection fraction in patients with Left bundle Branch Block

مجله دانشگاه علوم پزشکی گرگان, 2005
Background&Objective: Prolongation of QRS duration particularly in Left bundle Branch Block (LBBB) is commonly associated with many cardiac diseases. Electrocardiographic study of QRS duration and electrical axis may be predictors of sever LV systolic ...
F.Jalali (MD), MR.Khosoosiniyaki (MD), M.Hajahmadi (PhD)   +2 more
doaj   +1 more source

Effect of acute ventricular pressure changes on QRS duration

Journal of Electrocardiology, 1994
The effect of acute changes in ventricular pressure is examined on the QRS duration to clarify the mechanism of ventricular pressure-related arrhythmogenesis. Ventricular pressure was changed acutely by arterial transfusion-bleeding into an open-air ventricular pressure reservoir that was either off or on a metaraminol intravenous drip.
SIDERIS, DA, TOUMANIDIS, ST, KOSTOPOULOS, K, PITTARAS, A, SPYROPOULOS, GS, KOSTIS, EB, MOULOPOULOS, SD   +6 more
core   +6 more sources

Comparison of QRS duration in African blacks and European caucasians [PDF]

, 2010
This study aimed to compare the QRS duration in a large population of healthy individuals living in Nigeria with a Caucasian population living in Scotland.
Katibi, I., Devine, B., Lloyd, S., Clark, E., Macfarlane, P.W.   +4 more
core   +7 more sources

The Positive Effect of Sacubitril-Valsartan Treatment on Frontal QRS-T Angle in Patients with Heart Failure [PDF]

Bagcilar Medical Bulletin
Objective: Introducing angiotensin receptor neprilysin inhibitors (ARNI) to daily clinical practice is one of the most important advances in the treatment of heart failure (HF). ARNI is associated with reduced mortality and hospitalization in HF patients
Mehmet Karaca, Evliya Akdeniz
doaj   +2 more sources

Prognostic significance of QRS duration and morphology. [PDF]

Cardiology journal, 2011
QRS duration and morphology, evaluated via a standard 12-lead electrocardiogram (ECG), represent an opportunity to derive useful prognostic information regarding the risk of subsequent cardiac events or therapeutic outcomes. Prolonged QRS duration, and the presence of intraventricular conduction abnormalities, usually indicate the presence of changes ...
Andrew, Brenyo, Wojciech, Zaręba
openaire   +2 more sources

Determinants of QRS duration in patients with tetralogy of Fallot after pulmonary valve replacement [PDF]

, 2021
Background Following the repair of TOF patients may be left with pulmonary regurgitation and a dilated right ventricle (RV), which in turn can lead to ventricular arrhythmias and sudden death.
Gonzalez Corcia, Maria Cecilia, Benedetto, Umberto, Sinha, Shubhra, Baquedano, Mai, Cocomello, Lucia, Caputo, Massimo, Shubhra Sinha, Mai Baquedano, Umberto Benedetto, Massimo Caputo, (Gonzalez Corcia) (Maria Cecilia), Lucia Cocomello, Maria Cecilia Gonzalez Corcia   +12 more
core   +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

Subtle QRS changes are associated with reduced ejection fraction, diastolic dysfunction, and heart failure development and therapy responsiveness: Applications for artificial intelligence to ECG

Annals of Noninvasive Electrocardiology, 2022
Background Since the last century, the electrocardiogram (ECG) remains the non‐invasive test, that is, most easily accessible, feasible, and inexpensive for cardiology assessment.
Artemio García‐Escobar, Silvio Vera‐Vera, Alfonso Jurado‐Román, Santiago Jiménez‐Valero, Guillermo Galeote, Raúl Moreno   +5 more
doaj   +1 more source

Predictive value of QRS complex duration in patients with chronic heart failure and atrial fibrillation: retrospective study [PDF]

Терапевтический архив, 2022
Aim. To study of the features of the clinical course and prognosis in patients with chronic heart failure with low ejection fraction (HFrEF) and atrial fibrillation (AF) depending on the width of the QRS complex. Materials and methods.
Tatiana M. Uskach, Yulduz Sh. Sharapova, Alfiya A. Safiullina, Ekaterina V. Zinovyeva, Sergey N. Tereshchenko   +4 more
doaj   +1 more source

The variability of automated QRS duration measurement [PDF]

Europace, 2016
Previous studies have demonstrated substantial variability in manual assessment of QRS complex duration (QRSd). Disagreements in QRSd measurements were also found in several automated algorithms tested on digitized electrocardiogram (ECG) recordings. The aim of our study was to investigate the variability of automated QRSd measurements performed by two
Vlastimil, Vancura, Dan, Wichterle, Ivan, Ulc, Jirí, Šmíd, Marek, Brabec, Marta, Zárybnická, Richard, Rokyta   +6 more
openaire   +2 more sources