How does a constrictor know when to let go?

RandyRhoads · 08-13-12, 08:09 PM

Quote:

Originally Posted by knox

I would say no... The escape rate of the AV node and Ventricles is not equal to the action potential of the myocardial cells.

VF doesn't occur from lack of heart beats, it occurs from electrical anomalies in the cells. However, those with former MIs are definitely at a higher risk for VT and VF due to the damage done to the myocardium. Whether it would be that rapid with constriction is doubtful.

Good to know! I was thinking as a last ditch effort to reperfuse tissue the heart would start firing any pacemaker it could.

knox · 08-13-12, 08:13 PM

Quote:

Originally Posted by RandyRhoads

Good to know! I was thinking as a last ditch effort to reperfuse tissue the heart would start firing any pacemaker it could.

That is a well founded suspicion, as the SA node and Ventricles definitely have their own escape rate (their own "pacemakers"). However, even they wouldn't do any good.

Nice to see you know a bit of cardiology

RandyRhoads · 08-13-12, 08:17 PM

Quote:

Originally Posted by knox

That is a well founded suspicion, as the SA node and Ventricles definitely have their own escape rate (their own "pacemakers"). However, even they wouldn't do any good.

Nice to see you know a bit of cardiology

Me? Nah... I'm just a stupid redneck... lmao...

I'm stoked I could talk about this with someone with medical knowledge who knows what they're talking about! I would have been pondering on this one for a while

knox · 08-13-12, 08:18 PM

Quote:

Originally Posted by RandyRhoads

Me? Nah... I'm just a stupid redneck... lmao...

I'm stoked I could talk about this with someone with medical knowledge who knows what they're talking about! I would have been pondering on this one for a while

I have a way to go, yet...