Tag Archives: transvenous

He felt that it was not the drugs per se, but the needle used to inject them that initiated an electrical impulse. Hyman went on to develop and patent the first cardiac pacemaker (his term) in 1932 using a needle electrode. It was another 20 years before Paul Zoll published his experience of two patients he managed to pace via an external generator and hypodermic needles attached to the chest wall.1 Thankfully things have progressed slightly since then, and over the last 70 years we have advanced to placing an electrode transvenously rather than transcutaneously. The generator is battery powered and smaller, but the basic principle remains un