IPPV using the circle?

Re: IPPV using the circle?

emvn80 — Tue, 27 Sep 2011 15:30:58 GMT

Circle is fine for prolonged IPPV...much more economical than a Bain.

Close the valve briefly for inspiration otherwise most of the gas will just be squeezed out of the scavenging valve, but open it again straight after....For safety the valve should not be fully closed all the time unless you are administering the exact metabolic oxygen requirement to the dog, and we never do that in reality.

If you are using a Burtons circle or an ADE with soda lime the scavenging valve has a little button on the top (like a chimney) you can put your finger on this as you squeeze the bag to close the scavenging valve temporarily, this is safer than screwing down the valve as when you release your finger the valve is open again.

Alternatively you could consider keeping the valve partly closed and just keep and eye on the bag to check you are not over inflating it, or that the bag is not being squeezed dry every time.

Any questions, just ask

Re: IPPV using the circle?

Nick Shackleton — Sun, 18 Sep 2011 22:49:16 GMT

A circle is ok for short term IPPV. But I would probably opt for a Bain in this situation as is likely to be for a prolonged period of time If no other circuit is available then as per Juilet's advice. Good luck for tomorrow.

Re: IPPV using the circle?

Paul Chaney — Sun, 18 Sep 2011 22:08:12 GMT

thx, any advice is great. Used to cats and using the ayres t piece but only done IPPV with circle once many yrs ago

Re: IPPV using the circle?

Susan Jackson — Sun, 18 Sep 2011 22:01:50 GMT

I should know this one. I think it would be close valve, squeeze bag and open valve. Only because for IPPV you'll have to have the o2 flow rate higher than if using circle at closed. A closed valve may cause too much damage to the lungs.

Have plenty of help to hand tomorrow! I had a cat and I was on my own and I got the worst hand cramp but had to keep going, very painful but cat lived so worthwhile.