The ENT problems following the Birmingham bombings

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Abstract
The ENT problems following the Birmingham bombings of 1974 are presented. It is during the positive phase of bomb blast that the tympanic membrane ruptures. Spalling is a likely explanation for the mechanism of rupture of the tympanic membrane specially in large perforations. Tympanic membrane defects involving 80 per cent of the surface area of the drumhead or more persisted, whereas those involving less than 80 per cent healed with conservative treatment. The majority of perforations (81.4 per cent) healed spontaneously, with a three-layered membrane. A month should be allowed for the healing of every 10 per cent loss of the surface area of the drumhead. During surgical repair of persistent perforations, the malleus handle was found to be on a deeper plain than the long process of the incus. Tympanic membrane perforations did not protect the inner ear, the sensorineural deafness producing either a high tone or a flat loss. One in four of the victims seen in the hospital complained of deafness. A patient who suffered blast injuries to the lung also developed cord palsy.

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