Loading ...
This delay may cause RA to contract against closed tricuspid valvecreatinglarge cannon a wave
purpleis creatingcannon ball - like waves
RA contraction against a closed TV causing reflection wave back into RA ( junctional rhythm , V - tach , third degree block ) ‘ c ’ wave ( TV cusps(passive) caused byClassic “ cannon waves ”
intermittent atrial contraction against a closed tricuspid valveleadsto large “ cannon ” a waves
the QRS complexmay causecannon A waves in the neck
pulsed wave doppler of the chronic ischemic lv dysfunction , ivct and ivrt increaseleadingto cannon a waves
the atrium ... retrograde conduction ( e.g. , AV nodal reentry or some forms of ventricular tachycardiacan causeregular cannon A waves
an absent pulmonary valve may impair the placentation processleadingto cannon a waves ( figure20
a closed AV valveleadingto cannon A waves
simultaneous atrial and ventricular contractions(passive) caused byatrial cannon waves
in distressing pulsations in the neckmay resultin distressing pulsations in the neck
when the atrium contracts against a closed tricuspid valve , due to complete heart block ( 3rd degree heart block ) , or even in ventricular tachycardiaresultwhen the atrium contracts against a closed tricuspid valve , due to complete heart block ( 3rd degree heart block ) , or even in ventricular tachycardia
from the simultaneous contraction of the atria and ventricles against closed atrioventricular valvesresultfrom the simultaneous contraction of the atria and ventricles against closed atrioventricular valves
from arrhythmiasresultfrom arrhythmias
in increased release of ANPcan resultin increased release of ANP
typicallyresulttypically
II and vasodilating prostaglandins ( most often radial rayleadsII and vasodilating prostaglandins ( most often radial ray
when ventricular contraction takes place during or just prior to atrial contractionresultwhen ventricular contraction takes place during or just prior to atrial contraction
Atrioventricular ) Neck pounding(passive) caused byAtrioventricular ) Neck pounding