Archives of internal medicine . 306 TEE ARCHIVES OF jyTERXAL MEDICiyE whicli excite the preceding auricular contractions, or whether tliey aredue to an independent contractility of the ventricle, their relation to theauricular contractions being purely one of chance, is often difficult todetermine. Careful study of these two tracings, however, reveals aninteresting point. Out of fifteen ventricular contractions three occuralmost simultaneously with the auricular impulse, so that the two wavesare fused, in one the c M-ave follows but -|- second after the a wave,while in the other eleven bea
Archives of internal medicine . 306 TEE ARCHIVES OF jyTERXAL MEDICiyE whicli excite the preceding auricular contractions, or whether tliey aredue to an independent contractility of the ventricle, their relation to theauricular contractions being purely one of chance, is often difficult todetermine. Careful study of these two tracings, however, reveals aninteresting point. Out of fifteen ventricular contractions three occuralmost simultaneously with the auricular impulse, so that the two wavesare fused, in one the c M-ave follows but -|- second after the a wave,while in the other eleven beats, the c waves follow the a waves after aperiod of time varying from to ; but this is a jseriod which mightwell represent in some instances a normal, in others a conduction timewhich is but slightly lengthened. Now- if, in the four instances in which a and c waves are practicallycombined, one compares the probable time of the onset of the c w^ave—wdiich from comparison with the brachial pulse, would seem to represen
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Keywords: ., bookcentury1900, bookdecade1900, bookidarchi, booksubjectmedicine
