Poodle may have syncope

Reduced blood flow to brain often causes ailment

We have a two-year-old poodle named Ribbon. A few weeks ago, we found her lying on the floor, her front legs stiff, and she was unable to get up. After about 10 minutes, she was able to stand on her own and seemed back to her old self. Two nights ago, she did the same thing again, except this time she seemed unaware of her surroundings. We have booked an appointment with our veterinarian but would like to know if you have any ideas on what her problem could be? Based on your description, it is possible that her episodes may be due to a condition called syncope. Syncope occurs when there is an abrupt reduction in blood flow to the brain. As a result, the patient can collapse and experience a variety of clinical signs including stiffening of the limbs, urination, defecation, vocalization and an inability to stand. Some patients may become unconscious or become weak and wobbly in the hind legs.

The causes of syncope are many. Most commonly, syncope is because of a heart problem, which causes a sudden decrease in the blood flow leaving the heart. This is often due to heart beat irregularities (arrhythmias) or circulatory problems.

However, syncope can also occur due to cerebral vascular disease (i.e. problems with the blood vessels in the brain) or some other disease in the brain. This type of syncope tends to occur more often in humans than in dogs.

Hypoglycemia (i.e. low blood sugar) can also cause syncope although there is usually generalized weakness and seizures associated with this condition. Similarly, any disease in the brain that results in an increase in intracranial pressure can affect blood flow to the brain and cause syncope. Finally, ingestion of a drug or toxin (poison) or an epileptic seizure can also lead to syncope.

Since there are several possible causes, most of which are quite serious, you are wise to consult your veterinarian about Ribbon’s condition.