Studies have shown that people who were exhibiting symptoms and whose arteries were severely narrowed benefited from surgery along with medical therapy.
Uurimuste kohaselt on patsientidel, kellel ilmnes ummistumise märke või kelle arterid olid tõsiselt kitsenenud, osutunud tõhusaks kirurgiline ja medikamentoosne ravi üheskoos.