Shell-shock: Deafness
A shell burst behind an English lieutenant in 1914 without causing any wound but making him unconscious for an hour. During the hour the Germans passed by and stripped him of all articles of value. He came to and felt himself markedly deaf in both ears with an intense headache. There was no hemorrhage, no discharge, no tinnitus, no vertigo. Four days after the shell burst he could hear spoken words on each side at two feet, but could not hear a watch that could usually be heard from 3½ to 4 feet. With tuning fork C air and bone conduction proved much subnormal, though air conduction was better than bone conduction. With tuning fork C-5 air conduction was subnormal. Drums healthy. Improvement followed; hearing became normal eighteen days after explosion. The treatment was rest in bed with bromides early and strychnine later.
Marriage states that the psychical deafness due to shell-shock is usually bilateral and absolute. It is accompanied also, as a rule, by other nervous signs and symptoms, such as aphonia, tubular vision, paralyses, and anesthesias. Milligan and Westmacott state that the deafness is due to a functional suspension of neuronic impulses. They regard the brain as in a state of physical fatigue, and the mind as in a state of strain. There is no organic lesion. The neuronic impulses which are temporarily suspended are those which run from the higher cortical cells to the periphery.