Thrombolysis: The 411 on 911
House call: what you need to know about this potentially lifesaving treatment for heart attack and stroke.
One of the ultimate treatments for heart attack and stroke is called thrombolysis. This means giving a clotbusting medication in order to open up the artery, administered intravenously.
The sooner the treatment is given the more effective and the less the unwanted side effects (serious bleeding, primarily, for example).
In the case of a heart attack, there is benefit to giving it up to 12 hours after the onset of symptoms, and it is considered for up to 24 hours after symptom onset. In the case of stroke, thrombolysis can be given up to three hours after the onset of symptoms.
In some cases the treatment is considered for up to 4.5 hours. Thrombolysis is available across Canada in hospitals. But the better news is that in some parts of Canada, paramedics can now give this medication to treat heart attacks while still in the ambulance, in conjunction with an advising physician.
The treatment cannot be given for strokes that are caused by bleeding in the brain.
Dr. Zachary Levine is an assistant professor in the faculty of medicine at McGill University Health Centre and medical correspondent for AM740 (a ZoomerMedia property).