Natural experiments with sildenafil and stiffness

In August 2020, I found myself being taken by ambulance to the intensive care unit (ICU) at the Royal Brompton Hospital. For the preceding year I had been getting progressively more fatigued and breathless. I was periodically put on antibiotics to treat what was presumed to be a chest infection, but my symptoms had continued. Shortly after the first lockdown ended, my GP suggested that I go to the emergency department to be seen by a doctor in person. The attending doctor at my local emergency department then made the decision to transfer me to an ICU for the treatment of suspected infective endocarditis.This decision was the first of many that undoubtedly saved my life. Within a week, I had gone into multiple organ failure and was in a chemically induced coma while on extra corporeal membrane oxygenation (ECMO). I remained on ECMO for six weeks and in hospital for…
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