Spontaneous CSF Otorrhea

Recurrent Meningitis due to a Congenital Fistula in the Stapedial Footplate

“…In rare instances, the leakage is caused by a congenital malformation of the ear.The first case of spontaneous CSF otorrhea was described by Escat2 in 1897. Since then, as far as can be traced in the literature, excluding the present case, 40 cases of spontaneous CSF otorrhea were reported.333 Of these 40 cases, the number of cases with apparent bony defect of the sta¬ pedial footplate was 1347·91214·'6·17 of which 12 cases had central defect between the crura and one case had total defect in the stapedial foot¬ plate.11 In 17 other cases, the leakage sites were reportedly found around or in the margin of the oval window 8.13.15.18-25 29. other affected sites include the medial wall of the tym¬ panic cavity,3-26·28 the tegmen of the antrum, 2932-33 and the roof of the eustachian tube.8 Ages in the cases with a fistula of stapedial footplate ranged from 3 months to 61 years at the time of treatment, but in most cases the first attack of meningitis occurred at a very early age.…”

Repair of Spontaneous Cerebrospinal Fluid Otorrhea from Defect of Middle Cranial Fossa

“…Spontaneous CSF otorrhea is defined when there are no identifiable causes such as past history of trauma, surgery, infection or tumor 1). The origin of the CSF leak is commonly a defect in the tegmen of the middle cranial fossa, less in posterior fossa.…”

Management of Spontaneous Cerebrospinal Fluid Otorrhea

“…Wide assortments of materials have been utilized to repair temporal bone defects 14–19 . Temporalis fascia and calvarial bone are common autologous materials used to repair defects since they are both readily accessible during the approach.…”