51�Թ�

We read about Werner Forssmann, who attempted one of the first cardiac catheterizations in 1929.

Forssmann threaded a thin tube through his arm until it pierced his right atrium.

In 1929, Werner Forssmann, a German, famously risked his life when he put himself under local anesthesia, inserted a catheter into a vein on his arm and managed to thread it into his heart.

Forssmann catheterized his own heart nine more times.

Werner Forssmann had a plan — a plan he knew his superiors would never approve.