TL;DR: A dog shaking and paddling while lying on its side is likely experiencing a generalized seizure, which is a medical emergency requiring immediate veterinary contact.
What does it mean if my dog is shaking and paddling their legs while lying on their side?
If your dog is lying on their side, shaking uncontrollably, and moving their legs in a rhythmic swimming or paddling motion, they are likely experiencing a generalized seizure. During these episodes, dogs typically lose consciousness and have no control over their movements. This behavior is a result of abnormal electrical activity in the brain and can be distressing to witness, but it is important to remain calm so you can assist your pet.
Is my dog's shaking and paddling considered a veterinary emergency?
- Urgency Level: High. This is considered a medical emergency.
- While a single brief seizure may not be immediately life-threatening, it is a symptom of an underlying health issue such as epilepsy, toxin ingestion, or metabolic disease.
- If the paddling lasts longer than five minutes or if your dog has more than one seizure in a 24-hour period, their body temperature can rise to dangerous levels.
- Overheating from prolonged seizures can lead to potential organ damage.
- Contact an emergency veterinarian immediately.
How can taking a video of my dog's seizure help the veterinarian?
- If it is safe to do so, capturing a short video of the shaking and paddling can be an invaluable tool for your veterinarian.
- Since many dogs stop seizing by the time they reach the clinic, a video allows the vet to see exactly what happened.
- A recording helps the vet distinguish between a true seizure and other conditions like syncopal (fainting) episodes or tremors.
- This visual evidence ensures your dog receives the correct treatment as quickly as possible.
Clinical Context (Merck Veterinary Manual)
In cases of poisoning or tick paralysis, dogs may exhibit various neurological signs requiring emergency triage. With certain toxins, clinical signs such as trembling or shivering can progress to convulsions, which may be clonic or tonic and last from minutes to hours, potentially leading to a comatose state. Strychnine poisoning presents with rapid onset of apprehension, nervousness, tenseness, and stiffness, potentially progressing to severe tetanic seizures triggered by stimuli. These seizures involve extreme extensor rigidity, causing a "sawhorse" stance and hyperthermia. In tick paralysis, early signs include voice changes due to laryngeal paresis, hindlimb incoordination and weakness, altered breathing patterns, gagging, grunting, coughing, regurgitation, vomiting, and pupillary dilation, potentially progressing to paralysis of all limbs and respiratory failure.
Chapter: Toxicology
Source: The Merck Veterinary Manual, 11th Edition (Page 3062)