Link between LV dysfunction & VPDs … Is it a cause or bcoz ?

We know, LV dysfunction of any etiology can cause VPDs.This must be differentiated from VPDs induced LV dysfunction. Mind you, this is not an easy job at all. When do you suspect excess VPDs are the cause (or might cause) of LV dysfunction?In young, otherwise healthy persons with “VPDs and LV dysfunction”  would suggest chronic abnormal electrical activity is the cause for subsequent LV dysfunction. (An expression of electromechanical remodeling) Monomorphic VPDs more often suggest primary electrical pathology(Like OTVT, Fascicular VT)VPD count more than >10000 in 24 hrs in Holter will probably Indicate an electrical defect that requires  Intervention.VPD burden (>10% and usually >20%),Frequent NSVT,Retrograde P-wave after the PVCs,(Chronic AV desynchrony)Lastly one may argue its myth as well. VVI (& mode switched DDD) is a perfect example of how our heart tackles undesired VPDS. (We see hearts living comfortably with only with VPDs from the right ventricle (Pacemaker rhythm) without any troubling LVD.Ref 1.Baman TS, Lange DC, Ilg KJ, et al. Relationship between burden of premature ventricular complexes and left ventricular function. HeartRhythm. 2010;7:865–9.2.Ban JE, Park HC, Park JS, et al. Electrocardiographic and electrophysiological characteristics of premature ventricular complexes associated with left ventricular dysfunction in patients without structural heart disease. Europace. 2013;15:735–41When do you suspect VPDs are bec...
Source: Dr.S.Venkatesan MD - Category: Cardiology Authors: Tags: Uncategorized av desynchrony due to vpd influence of vpd on crt PVC induced cardiomyopathy tachycardic cardiomyopathy what is the relation between LV dysfunction and VPD vpc pvc Source Type: blogs