In the last few years increasing emphasis has been placed on that portion of the field of otologic surgery which might be considered to concern itself with efforts to prevent intracranial extension of middle ear and mastoid suppuration. It is understood, of course, that the surgical treatment of the infected ear and mastoid is in itself an attempt along these lines. However, with the increase of our knowledge of the spread of infection from the ear and mastoid there has developed pari passu a broadening of the limits of surgical exploration so that exenteration of the cells in the mastoid does not always suffice. While it is true that in most instances of mastoid disease the complete removal of all cellular elements is all that is essential for recovery, there are instances in which further exploratory measures must be instituted.
It must be obvious that in order to establish a
I. FRIESNER, J. G. DRUSS. INTRACRANIAL COMPLICATIONS OF OTITIC ORIGIN. Arch Otolaryngol. 1932;15(3):356–367. doi:10.1001/archotol.1932.03570030374002