Acute suppression of epicardial left ventricular summit premature ventricular ectopy by occlusive venogram

2021 ◽  
Author(s):  
Eugene SJ Tan ◽  
Swee‐Chong Seow
Keyword(s):  
Left Ventricular ◽  
Ventricular Ectopy

Abstract 16215: Ventricular Dyssynchrony is Associated With Arrhythmic Mitral Prolapse Prior to Chamber Remodeling

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Dimosthenis Pandis ◽  
Marc Miller ◽  
Ahmed El-Eshmawi ◽  
Ioulia A Grapsa ◽  
Percy Boateng ◽  
...  
Keyword(s):  
At Risk ◽  
Global Longitudinal Strain ◽  
Left Ventricular ◽  
Lv Function ◽  
Study Cohort ◽  
Ventricular Ectopy ◽  
Myocardial Mechanics ◽  
Ventricular Dyssynchrony ◽  
Mechanical Dispersion ◽  
The Mean

Introduction: Asymptomatic patients on active surveillance for degenerative mitral regurgitation are at risk of ventricular arrhythmia and sudden death. Hypothesis: Abnormal myocardial mechanics may precede ventricular remodeling and may help identify at-risk patients. Methods: Multi-directional myocardial mechanics and LV dyssynchrony were assessed in 204 consecutive patients awaiting surgical mitral repair for severe degenerative MR in a quaternary mitral reference center. Results: The mean age was 58 ±12.5 years and 40% were females. The mean EF was 63% ± 6% and 92% had compensated LV function (EF>60% and LVESD<4cm) and only 24% had elevated LV filling pressures (E/e'≥13). Indexed LV wall stress-to-LVEDD, relative wall thickness and indexed LV mass-to-BSA were similar amongst males-females, although males had higher mean blood pressure (94 Vs. 90, P=0.02) . The peak global longitudinal strain (GLS) was -25.2% ± 3.3% and the mid-ventricular circumferential and radial strains were -33.5%±6.7% and 56%±25% respectively. Ventricular ectopy was present in 24.5% of patients and only 17% had atrial fibrillation (Afib) despite the significantly dilated left atria (mean LAVi 70±26.6 ml/m 2 ). The median LV mechanical dispersion was 40msec (IQR 30.7-56.5) but increased significantly with ventricular ectopy (65msec, P<0.01) and further influenced by concomitant Afib (p=0.001 for 2-factor interaction). Diastolic LV function did not correlate with dispersion (r=0.02 and 0.01 for E/A and E/e', P=NS) but was associated with the duration of LV diastolic filling (mean 502±140msec; r=0.2, P=0.004). Interpapillary radial strain delay was noted in the study cohort (mean delay 52.8msec, range 0-335msec) while intepapillary activation delay was manifested with concomitant ventricular ectopy (mean time-to-peak LS delay 57.5±48msec). Conclusions: Left ventricular dyssynchrony manifested by increased mechanical dispersion and imbalanced interpapillary mechanics are observed prior to overt chamber remodeling in significant degenerative MR and is associated with ventricular ectopy. Further studies are needed to assess the related clinical implications and potential impact on risk stratification in this patient group.

scholarly journals Mapping and Surgical Ablation of Focal Epicardial Left Ventricular Tachycardia

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Arif Elvan ◽  
Hauw T. Sie ◽  
Anand R. Ramdat Misier ◽  
Andre C. Linnenbank ◽  
Peter Paul H. M. Delnoy ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Minimal Invasive ◽  
Left Ventricular ◽  
Lv Function ◽  
Ventricular Ectopy ◽  
Rf Ablation ◽  
Epicardial Mapping ◽  
Epicardial Ablation ◽  
Surgical Ablation ◽  
Technical Challenge

We describe a technical challenge in a 17-year-old patient with incessant epicardial focal ventricular arrhythmia and diminished LV function. Failure of ablation at the earliest activated endocardial site during ectopy suggested an epicardial origin, which was supported by specific electrocardiographic criteria. Epicardial ablation was not possible due to the localization of the origin of the ventricular tachycardia adjacent to the phrenic nerve. Minimal invasive surgical multielectrode high-density epicardial mapping was performed to localize the arrhythmia focus. Epicardial surgical RF ablation resulted in the termination of ventricular ectopy. After 2 years, the patient is still free from arrhythmias.

Voltage Disturbances During Pregnancy

2017 ◽  
Author(s):  
Heather C. Nixon
Keyword(s):  
Ventricular Tachycardia ◽  
Left Ventricular Hypertrophy ◽  
Ventricular Hypertrophy ◽  
Well Being ◽  
Left Ventricular ◽  
Ventricular Ectopy ◽  
Conversion Therapy ◽  
St Segment ◽  
Assessment And Treatment ◽  
The Impact

This chapter covers the incidence, etiology, and treatment of the most common electrocardiogram and rhythm disturbances encountered during pregnancy. Baseline electrocardiogram changes associated with pregnancy include left ventricular hypertrophy and ST segment depressions secondary to anatomic and metabolic changes of pregnancy. The most common arrhythmias include atrial and ventricular ectopy, which are usually benign in nature. Supraventricular and ventricular tachycardia are also discussed in detail, along with the impact of antiarrhythmic and electrical conversion therapy on fetal and maternal well-being. An understanding of the pathophysiology, assessment, and treatment of these rhythm disturbances is requisite knowledge for all anesthesiologists to provide optimal and timely care to parturients.

Fetal Bifid Left Ventricular Diverticulum Presenting With Ventricular Ectopy

2008 ◽  
Vol 24 (3) ◽  
pp. 165-168
Author(s):  
Ulrike Brucks ◽  
Jude Duval ◽  
David Roberson ◽  
Bettina F. Cuneo ◽  
Tarek Husayni
Keyword(s):  
Left Ventricular ◽  
Ventricular Ectopy ◽  
Ventricular Diverticulum ◽  
Left Ventricular Diverticulum

Effects of oral digoxin on ventricular ectopy and its relation to left ventricular function

1983 ◽  
Vol 51 (5) ◽  
pp. 765-769 ◽  
Author(s):  
Alan H. Gradman ◽  
Moira Cunningham ◽  
Mary A. Harbison ◽  
Harvey J. Berger ◽  
Barry L. Zaret
Keyword(s):  
Left Ventricular Function ◽  
Ventricular Function ◽  
Left Ventricular ◽  
Ventricular Ectopy
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