Since 1930 much has been written of infections of the petrous bone by Profant,1 Eagleton,2 and especially Kopetzky and Almour.3 A satisfactory clinical picture has been worked out, thanks to Kopetzky, so that the diagnosis can be made more easily than in the past. Various operative procedures have been devised, notably by Eagleton, Almour, Voss and Frenckner, whose methods are tolerably familiar to most otologists.
However, as yet the results attained by these workers do not approximate the mortality figures of Perkins,4 who in 1910 collected ninety-four cases showing Gradenigo's syndrome, with only eleven deaths (about 12 per cent). Treatment at that time was limited to a simple or a radical mastoid operation. Kopetzky's mortality was about 43 per cent (three of seven cases in which Almour's technic was used).
From Perkins' figures it is obvious that surgical drainage of the petrous tip is not always
SUNDE EA. INFECTION OF THE PETROUS BONE: RATIONALE OF TREATMENT AND REPORT OF A CASE. Arch Otolaryngol. 1934;19(4):436–438. doi:10.1001/archotol.1934.03790040024003
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