Liverpool University Hospitals Nhs Foundation Trust

This study looks at whether bosentan, a drug that blocks a natural vessel-constricting substance, can improve blood flow in the tiny heart vessels of people with angina who have no major blockages. About 45 participants will get bosentan for 4 weeks and have MRI scans before and …

This study uses a wireless patch to monitor the heart rhythms of 1,200 patients at high risk for atrial fibrillation (AF), a common heart rhythm problem that raises stroke risk. Participants are adults over 50 with certain acute conditions like heart failure or sepsis, but no kno…