Veterinarian, Cluj-Napoca
HelgaDemény
I diagnose and treat epilepsy and other neurological diseases in dogs and cats. Veterinary EEG was the subject of my PhD.

Idiopathic epilepsy is not a dramatic diagnosis; managed properly, early and with a bit of luck, the seizures can be well controlled.From her interview with Veterinarul.ro (in Romanian), February 2026
I have worked with more than 500 dogs and cats with epilepsy. In over 350 of them, the seizures are now under control.
What I treat
Epilepsy and seizures
Nerves and muscles
I learnt EEG on people before I used it on animals.
The full story
- Early years
In the countryside near Târgu Mureș
I grew up surrounded by animals and never saw myself doing anything other than veterinary medicine.
- University
EEG technician in human epileptology
From my fifth year I recorded EEGs for the patients of Dr. Bogdan Florea, a neurologist and epileptologist. That is where I learnt to read the electrical activity of the brain.
- 2015
DEMED
I opened my own practice in Cluj-Napoca, dedicated exclusively to veterinary neurology.
- 2017
Hanover
After graduating from USAMV Cluj-Napoca, I spent three months in the neurology department of the University of Veterinary Medicine Hanover, in the team of Prof. Dr. Andrea Tipold.
- 2021
Leipzig
A placement in the neurology department of Leipzig University, in the team of Prof. Dr. Thomas Flegel, with whom I later published a study on non-convulsive seizures.
- 2022
The PhD
A thesis on the applications of electroencephalography in the diagnosis of canine epileptic seizures and epileptic syndromes, graded Excellent.
- Today
Cluj-Napoca
I had the chance to work abroad and chose to stay at home. I earned the ESAVS certificate in veterinary neurology, and I see dogs and cats from Cluj and from further afield.
What the EEG sees that the eye cannot.
An electroencephalogram records the electrical activity of the brain. It shows what kind of seizures an animal is having, and that can change the treatment.
At my practice in Cluj I have recorded EEGs on dogs, cats and a lion cub with epilepsy. The principles are the same for every one of them: a careful history, a full neurological examination and a recording made at the right moment.
About EEG
What owners say
Three of the Google reviews left for my practice, DEMED.
“Linda was having more and more epileptic seizures, going from one a month to 3-4 a month [...]. Linda has now gone 7 weeks without a single seizure on the new treatment. We will keep going to the doctor, even though we are not from Cluj.”
“I brought my kitten to Dr. Helga at a point when I really had no hope left [...]. After just 30 minutes of examination, she gave us a clear diagnosis. Today my kitten is full of life again: running, jumping, playing.”
“After several consultations with different vets and no clear diagnosis, I came here with my cat. The way she explains every step of the treatment inspires trust and a sense of security.”
Average rating on Google: 4.9 out of 5, from 47 reviews. The reviews were written in Romanian and are shown here in translation, with no changes to their content; omitted passages are marked [...]. Google does not verify reviews, and every case is different. All reviews
Articles for owners
Based on the international veterinary neurology guidelines.
Research
Six studies published in PubMed-indexed journals, including one in the Journal of Veterinary Internal Medicine with the neurology team in Leipzig.
All publications- An integrated diagnostic approach to severe generalized canine tetanus
Codea AR, Neagu AM, Dandea ȘM, Demény H, Florea B, Casoy YL, Niculae M
- Prevalence of nonconvulsive seizures and nonconvulsive status epilepticus in dogs and cats with a history of cluster seizures: a retrospective study
Tästensen C, Gutmann S, Loderstedt S, Flegel T, Demény H, Baum P
With the neurology team at Leipzig University
- Coxofemoral luxation as a complication of localised tetanus in a cat
Danciu CG, Milgram J, Ober CA, Tăbăran FA, Demény H, Chai O
Prices
Prices are public and in lei. Before any test, I will tell you what is needed and what it costs.
Full price list| Epilepsy consultationA first seizure or recurring seizures: history, neurological examination, a plan for tests and treatment | 200 lei |
|---|---|
| Neurological consultationWalking, balance, weakness, pain, tremors, behaviour | 380 lei |
| EEG under sedationRecording of the electrical activity of the brain, at the practice | 450 lei |
| Neurological follow-upFor patients already on treatment | 150 lei |
| Emergency consultationOutside opening hours: evenings and weekends | 500 lei |
Anaesthesia is a separate procedure, often needed for an EEG.
My practice, DEMED
I founded DEMED in 2015 and still run it today. It is dedicated exclusively to veterinary neurology.
- Address
- Piața 1848 nr. 2, Cluj-Napoca
- Opening hours
- Monday to Friday, 10:00-18:00. Closed on Saturday and Sunday. Emergencies also outside opening hours.
- At the practice
- Neurological examination, EEG, blood tests, cerebrospinal fluid (CSF) collection
- Elsewhere
- MRI, CT scans and surgery at specialised centres, on my referral
- Appointments
- Non-urgent cases through the form or by e-mail to helga@demed.ro.
- Emergencies
- Also outside opening hours: send me a WhatsApp message or call 0745 145 033. The emergency consultation, outside opening hours, costs 500 lei. If your pet is having a seizure right now that has lasted more than 5 minutes, go straight to the nearest emergency vet clinic that is open now.
How do I book an appointment?
Fill in the appointment form, or send a WhatsApp message to 0745 145 033 or an e-mail to helga@demed.ro. For non-urgent cases, please write rather than call. You will get a call the day before the consultation to confirm.
What is an EEG?
An electroencephalogram (EEG) records the electrical activity of the cerebral cortex. It can pick up abnormal discharges between seizures, which support a diagnosis of epilepsy and help to identify the type of seizures. More on the veterinary EEG page.
What is epilepsy?
Epilepsy is a brain disease that causes epileptic seizures to happen repeatedly. The diagnosis requires at least two unprovoked seizures at least 24 hours apart. When no cause is found in the brain or elsewhere in the body, it is called idiopathic epilepsy. More in the guide to epilepsy in dogs.
I live in another town. How do I start?
Send the videos of the episodes and any test results in advance, by WhatsApp to 0745 145 033 or by e-mail to helga@demed.ro, then book the consultation through the form. That way the information is read before the visit and tests already done are not repeated. More on the page for patients from outside Cluj.
Book a consultation
For non-urgent cases, fill in the request or send me a WhatsApp message or an e-mail. If you live in another town, send me your videos and test results in advance.
Non-urgent cases
Fill in the form or send me a WhatsApp message or an e-mail. For non-urgent cases, please write rather than call: you will be contacted during opening hours to arrange the day and time.
helga@demed.roEmergencies, also outside opening hours
Write to me on WhatsApp first, with a few lines about what is happening and, if you can, a short video. If it cannot wait, call. The emergency consultation, outside opening hours, costs 500 lei.
- PracticeDEMED, Piața 1848 nr. 2, Cluj-Napoca
- Opening hoursMonday to Friday, 10:00-18:00. Emergencies also outside opening hours.
- LanguagesRomanian, Hungarian, German, English