Complex sentence: In 1861, he published his first results on a new technique to treat internal ear diseases which obviated the need of catheterization of the Eustachian tube, which came to be known as politzerisation, and which was widely adopted throughout the world, bringing fame to Politzer.
Split into simpler sentences: In 1861, he published his first results on a new technique to treat internal ear diseases which obviated the need of catheterization of the Eustachian tube, and which came to be known as politzerisation. In the subsequent decades, the technique was widely adopted throughout the world, bringing fame to Politzer.