4 doctors weighed in:
Why is it that propranolol, a beta-blocker drug is given to a patient with double outlet right ventricle?
4 doctors weighed in

Dr. William Scott
Pediatrics - Cardiology
3 doctors agree
In brief: To relax the heart
Some patients with double outlet right ventricle have abnormally thick muscle bundles that block the flow of blood to the lungs when the heart contracts.
When the blockage is severe the oxygen level in the body can drop to dangerous levels. Beta blockers such as Propranolol reduce the strength of the heart's contraction allowing more blood to pass to the lungs and can improve the oxygen level.

In brief: To relax the heart
Some patients with double outlet right ventricle have abnormally thick muscle bundles that block the flow of blood to the lungs when the heart contracts.
When the blockage is severe the oxygen level in the body can drop to dangerous levels. Beta blockers such as Propranolol reduce the strength of the heart's contraction allowing more blood to pass to the lungs and can improve the oxygen level.
Dr. William Scott
Dr. William Scott
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