The old-fashioned Politzer maneuver: a video clip demonstration.

@article{Casale2007TheOP,
  title={The old-fashioned Politzer maneuver: a video clip demonstration.},
  author={Manuele Casale and Vittorio Rinaldi and Roberto Setola and F. Salvinelli},
  journal={The Laryngoscope},
  year={2007},
  volume={117 11},
  pages={2002}
}
Politzer maneuver causes retrograde inflation of the middle ear by forcing air through the eustachian tube, and it has been proposed by many authors as the main nonsurgical treatment of middle ear effusion. To our knowledge, this is the first case in the literature in which air entering into a middle ear with effusion through a Politzer maneuver has been captured on video (www.laryngoscope.com).