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Pandemic has delayed lifesaving treatment for thousands of people with severe aortic stenosis. 

It is almost impossible for an injured heart to fully mend itself. Within minutes of being deprived of oxygen – as happens during a heart attack when arteries to the heart are blocked – the heart’s muscle cells start to die. Sanjay Sinha wants to mend these hearts so that they work again. 

Patients with the most dangerous type of high blood pressure will be able to receive far more effective treatment after Cambridge-led research reveals the powers of a "wonder drug" that has lain under the noses of doctors for 50 years.