Mechanisms regulating myocardial oxygen consumption in non-ischemic dilated cardiomyopathy (original) (raw)

we hew pedorii fxmnafy shw (CS) mapp'@~ wing fiered (Soami %earW (0.m k!!) udpohf leads from a 4 or olmdmmii circm movement tachycardii (CMT) dufhg 9x9 elecaophydokgk study (EPS). We have l&W&d 3 types of fast spikes between th8 major atrial and veWicular elsctrograms in the bipolar CB leads, that could ba taken for K potentials, Type 1: sphsarterttk3majorabialdeAectmduringsinusrhythafKiatrial pacing (5 Pts). Type 2 spikes hmediiety precedii the onset of the majorrarial~bnduingCMT(29~).Ty~3:~~iesaitheendob (29Pts).Only3Ptshadnotspik6sofany were eduded to represenl K potenGak in lackdrelatbnbatweenth8preaenceand apikeS were due to activation delays under each electrode or dierent fmQm8fWon patterns d tha atrlal elactrograms recorded by each pole. We met ubfh to exclude that type 3 spikes were K ptenlials in anty