My dog had his first seizure. When is an MRI or CT scan needed?

An MRI is useful to determine if Smodge is having seizures caused by a primary issue with the brain. This would be caused by a number of considtions for example a mass, or fluid changes within the brain. These conditions would be visible on the MRI scan. MRI scans are rarely if ever stopped, as the animals underlying the MRI are sedated so they do not move and interrupt he process. As well as to protect them from stress. If you do not wish to have the MRI performed you can ask your vet to try medical treatment for the seizures. If you take this route you won't know the precise cause of the seizures, but Smudge will still be receiving care. Some seizures are cause by idiopathic epilepsy and this would not be visible on an MRI, but it is a diagnosis reached when no other cause of the seizures can be found. If the MRI comes back clear, idiopathic epilepsy would be the most likely diagnosis. Medical treatment would then be started. I hope that is helpful information. Happy to help more in a consult or if you want to post any further questions in the forum.

I always recommend blood work to start with in any dog that started having seizures. There are a few things that could be diagnosed on blood work that could cause seizures, such as liver disease, kidney disease, electrolyte abnormalities, and infection. If the blood work is normal. Your vet will likely recommend that you continue to monitor Harley for seizure activity. Some dogs will have a seizure or two early in their life and never again. But some develop epilepsy that needs to start on medications. I generally wait to start medications until one of the following occur: -many seizures clustered together -seizures that are severe and cause bodily harm -the pet does not recover within 45 minutes after a seizure (should be tired, but otherwise normal) -seizures are occurring regularly (ie every month or two) Here is an article you may find helpful: https://www.petcoach.co/dog/condition/seizures-1/

An MRI is the best way to see the brain to find out if there is an abnormality in structure or tumors that could be causing the seizure. If you are unable to pursue the MRI discuss this with your vet. Medication to treat/prevent seizures may be an option but will not cure the disease will only alleviate seizure symptoms. Good luck.

Initially it will be important to make sure they were seizures and not heart related (syncope/arrhythmia) as these can appear similar. Try to catch an event on video for your neurologist and document what happens before, during, and after the event. You are right the most common sign of a brain tumor is new onset seizures. But we do also always rule out any other causes like systemic issues, heart issues, and any other cancer elsewhere in the body. There are also other problems that can occur in the brain like inflammation. Ultimately what your neurologist will recommend will be based on the exam and information you provide but is likely to include chest xrays, an abdominal ultrasound, and MRI +/- CSF tap. I hope this helps and thank you for using Petco Pet Education Center, formerly Petcoach!

Thanks for using Petco Pet Education Center, formerly Petcoach. I would need to ask a bunch more questions and would be happy to do a consultation if you’d like but let me give you a few ideas. 1) be sure it’s not heart- Fainting spells can look a lot like seizures. Consider a cardiology consult to make sure it’s not that. They’ll do an EKG and ultrasound of the heart to make sure nothing is amiss. 2) weird fungal diseases- I’m from Arizona, land of valley fever - a fungal disease that can - and often does- cause seizures. Other fungi like Blastomycosis and Histoplasmosis can do similar things. If Bella has traveled out of Texas- even for just a day or two- these are considerations. 3) Bella is simply an atypical epileptic and needs more/different medication. Just like in people, it can sometimes take some time to find the right combination of drugs to get the seizures controlled. 4) weird drug interactions- double check especially about any anti-anxiety or behavior modification medications and pain medications. 5) hypothyroidism, tick fever, other weird stuff. If you’ve done an MRI, you may have already consulted with a neurologist. If not? That would be the next step along with the cardiologist visit. Best of luck to you and Bella!

That sounds like Jb had a seizure. I would recommend taking him in. I like to do blood work including checking thyroid levels. I’m looking for treatable things. He also needs a thorough neurological exam to see if there are any deficits. I don’t usually place on anti-seizure medication for one seizure. I do recommend keeping a seizure log- keeping track of what they were doing, how long it lasted.. etc I have been using Royal Veterinary College App for my personal dog. Thanks for reaching out to Petco Pet Education Center, formerly Petcoach.

I'm so sorry about your dog. I know this is a very scary time. There are multiple causes of seizures. I'm not sure how old your dog is, but in dogs under 5 years old who are completely normal in between seizure episodes, epilepsy is the primary cause of seizures. In older dogs it could be inflammation, a brain tumor, and infection or problems with the organs (particularly the liver). I always recommend blood work first to look for any problems there. If the blood work is normal, the next step is to evaluate the brain by doing an MRI. If blood work has not been done, I would highly recommend it. If problems are found in the blood work, then you should treat that. If everything is normal in the blood work, I would recommend starting seizure medication. Some dogs will have seizures very infrequently like your dog started out. Those dogs don't usually need medication. But when they become more frequent and are clustering (multiple in a 24 hours period) then I would definitely recommend medication at this point. There are multiple different seizure medications to choose from, so talk to your veterinarian about that. Many times the seizures will be manageable with medications, but it takes consistent medication multiple times per day and blood rechecks for the drug levels. Honestly, some dogs will be very difficult or impossible to control and will continue to have seizures despite being on multiple medications. So to answer your question, yes, there is something you can do to help your pet and based on the number of seizures he is now having, he needs to be put on medication. I hope this helps!