when was the pacemaker invented in what year
Artificial cardiac pacemaker A major step forward in pacemaker function has been to attempt to mimic nature by utilizing various inputs to produce a rate-responsive pacemaker using parameters such as the QT interval, pO2 â€“ pCO2 (dissolved oxygen or carbon dioxide levels) in the arterial-venous system, physical activity as determined by an accelerometer, body temperature, ATP levels, adrenaline, etc. Instead of producing a static, predetermined heart rate, or intermittent control, such a pacemaker, a 'Dynamic Pacemaker', could compensate for both actual respiratory loading and potentially anticipated respiratory loading. The first dynamic pacemaker was invented by Anthony Rickards of the National Heart Hospital, London, UK, in 1982.[11]
Buddhism in Southeast Asia
Bundle of His These specialized muscle fibers in the heart were named after the Swiss cardiologist Wilhelm His, Jr., who discovered them in 1893.[3][4]
Council of Trent These decrees were later supplemented by the First Vatican Council of 1870.
Horse and buggy By the early 1910s, the number of automobiles had surpassed the number of buggies, but their use continued well into the 1920s in out of the way places.
All that glitters is not gold While early expressions of the idea are known from at least the 12th century, the current saying is derived from a 16th century line by William Shakespeare.