At greatest risk are obese women and those requiring a Caesarean section, groups whom in recent years have been recommended to receive preventive blood-thinning drugs.

Women also had more complications from treatment, particularly bleeding from blood-thinning drugs routinely given to heart attack patients.

Consequently, many people with the condition take blood-thinning drugs to protect against clots.

People prone to heart attack and stroke are now often given blood-thinning drugs such as heparin, wayfarin or aspirin.

Tell your dentist if you are taking anticoagulants (blood-thinning drugs).

If you've had a stroke in the past, tell your dentist if you are taking anticoagulants (blood-thinning drugs).

The new valve is intended to allow the person using it to forego blood-thinning drugs.

Ask your doctor for specific guidelines about discontinuing alcohol use, aspirin products, and blood-thinning drugs before the procedure.

Not every patient should take blood-thinning drugs.

You have a history of bleeding disorders or are taking any blood-thinning drugs.