Hi, does somebody know how tachycardia affects contractility? I am confused between 2 possible answers that I can think of - related to B1-stimulation and decreased ventricular filling time. Any input will be very much appreciated. Thanks.
My thought is that if you are tachy you have less filling time so you have less end-diastolic volume and thus less wall stretch, so according to Starling's law you would have less contractility.
Last edit by fiveofpeep on Jan 2, '12
: Reason: added EDV