Dog fainting during or post exercise

RE: Dog fainting during or post exercise

Mark Patteson — Wed, 15 Jul 2020 08:21:29 GMT

Doppler is a long haul
I went to echo rounds in the BRI almost every week for 3 years when doing a PhD

but, the technology is much better now so it's a good thing to study and makes you learn a lot about cardiac physiology which is the key to really understanding it
You need to know which chamber is at what pressure throughout the cardiac cycle and a bit of basic maths and you are there, it just takes time to think like that
back to your dog - the AS doesn't look too bad (needs Doppler) but the other thing to do with almost any syncopal dog os record a Holter. standard ECGs is like a still frame from a 90 min movie- you can get the plot wrong

I will message you about our Beecardia ECG system

RE: Dog fainting during or post exercise

Dinu Catilina — Tue, 14 Jul 2020 15:55:55 GMT

Thank you Mark for getting back. So I better get some CPD in and learn how to use the Doppler!

RE: Dog fainting during or post exercise

Arlo Guthrie — Mon, 13 Jul 2020 17:08:26 GMT

[quote userid="4122" url="~/001/veterinary-clinical/small-animal/cardiology/f/expert-help/29181/dog-fainting-during-or-post-exercise/224188#224188"]To tell you more would blatant advertising and Arlo might charge me[/quote]

Ha - laughed out loud - certainly not, Mark. That is the whole point of these expert forums. In other words, you've given your time to share your thoughts, experience, wisdom etc., in return for which you can advertise the hell out of whatever you want!

RE: Dog fainting during or post exercise

Mark Patteson — Mon, 13 Jul 2020 16:34:53 GMT

forgot to say I think the aortic valve looks dysplastic - probably more important that the rest of what I said! But you need Doppler to grade the effect so < 3m/sec no bother ever (although this breed can progress) 4-6 m/sec probably needs atenolol. > 6 m/sec bad news bears, > 7 .......well I doubt its that bad as no marked LVH

RE: Dog fainting during or post exercise

Mark Patteson — Mon, 13 Jul 2020 16:31:36 GMT

Nice Views - sadly which illustrate the point that good 2DE takes you nearly all the way in acquired disease but for congenital disease you need Doppler. In fact, congenital disease can be really hard and what you see is seldom textbook because if you are submitting images to a textbook you often use the most extreme and the best image quality. And a lot of congenital disease is quite mild which is harder than severe cases.

So what I would say here is that this breed can have valvular aortic stenosis so if there is a harsh left basal murmur that would be my money. Other things - I can't see a VSD and I suspect I would from your long axis views but you can't exclude it in case it's tiny or in an odd place. I cant see a dilated RV so that rules out significant tricuspid dysplasia and I cant see a thick RV wall so that excludes severe pulmonic stenosis. Actually I don't appreciate a thick LV and that rules out terrible AS but not mild or moderate disease. We don't have a RPshort axis to assess the LA but the LV doesn't look volume overloaded so that makes a big PDA unlikely but you would hear that and small ones don't have the classic overloaded chambers. And with mitral dysplasia we need a good view of the LA

we can send you a list of the views we like for submitted cases for our comments but you have most here, just for any cardiologist always have a short-axis view of the aorta and the maximal width of the LA in that view (have a look at EPIC its one of the two crucial views for those cases). The subcostal view you have is spot, on but really that's designed for Doppler because you get good alignment across the aortic valve and the LVOT.

For ECG support, we can provide an OOH back up which can be prompt out of hours but not always instantaneous (15 mins - 2-3 hour max). To do that we have a great ECG system which we rent as it needs a cloud system for the software (it's much less than most vets charge for one ECG a month), but also backs up via the cloud automatically so we dial in and see it and report on it (it is good for a monitor too, it works on a tablet) - but you can also dial in remotely yourself, so if a colleague is stuck you don't have to get out of bed to go and help them you can look at it from home, your mother in law's house, the kids swimming gala, the beach in Thailand, - wherever you have wifi. So if you are the go to medic in your practice you probably cop these first but we can help if needed 24/7, 365. To tell you more would blatant advertising and Arlo might charge me, so just send us an email and we can give you the details

RE: Dog fainting during or post exercise

Dinu Catilina — Thu, 09 Jul 2020 10:22:16 GMT

www.vetsurgeon.org/.../2781.dinu_2D00_1.mp4

www.vetsurgeon.org/.../2781.dinu_2D00_2.mp4

www.vetsurgeon.org/.../2781.dinu_2D00_3.mp4

www.vetsurgeon.org/.../5415.dinu_2D00_4.mp4

Hey folks, this is not Dinu, it is Arlo impersonating Dinu!

Normally I recommend that video files are uploaded to youtube and embedded in the forum. Youtube has more bandwidth etc.

In this case, I converted the files from .avi, to the more universally accepted .mp4 using: https://cloudconvert.com/avi-to-mp4

We are looking at installing something which will convert all video files to a format everyone can see regardless of device, without me having to do it manually! Meantime, best thing is to use youtube, or to convert files to mp4.

RE: Dog fainting during or post exercise

Dinu Catilina — Wed, 08 Jul 2020 21:55:45 GMT

Hi Mark

I will attach the videos here for others to see as well. I had a look at your website and I am positive we will use your services, I think my colleagues will love the ECG interpretation service. Is there any OOH support as well or normal opening times only?

Videos below:

Edit: can't do it, I'll ask for help.

RE: Dog fainting during or post exercise

Mark Patteson — Wed, 08 Jul 2020 17:29:42 GMT

Its a breed which is predisposed to AS and also mitral dysplasia So with that murmur that's a distinct possibility If the arterial pulse is weak that would be supportive of severe AS
This image that I see looks like just a still frame of a well positioned sub-costal view, but this is a great view for the Doppler signal, which I can't see. Can you see if you can post some videos here - I would be happy to comment and others can see them.
Or contact us direct at Heartvets for an echo report

Mark