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Shell-wound; musculocutaneous neuritis: Brown-Séquard’s epilepsy.

Case 69. (Mairet and Piéron, January, 1916.)

An infantryman, 30, a gardener, was wounded in the right forearm by a shell fragment, which fractured the ulna, September 7, 1914, at Revercourt. Despite much fragmentation of the bone and suppuration, the wound healed with two cicatrices, where the fragments had gone in and had come out. The scarring process was over in December.

However, in the middle of January, 1915, this man began to suffer from headaches and insomnia, with vertigo and buzzing in the head, “as if an airplane inside.” Sometimes arms and legs would stiffen, and the man would tremble, have to lie down, and even lose consciousness for a quarter of an hour, waking up tired, wandering, and with feelings in his head. These crises, at first occurring every week, later grew frequent. Finally there was a very complete attack, in which he fell out of bed, got up, made several turns about the room, and went back to bed; and in the morning, was dull and disoriented. Accordingly, he was sent to the central military neuropsychiatric service of the general hospital at Montpellier, November 10.

Besides the two extensive cicatrices, there were motor disorders. Pronation and supination were almost impossible, as well as extension of the hand and fingers and abduction of the thumb. There was a radial paralysis without R. D. Electrical excitability of the extensors was diminished on the right. The hand was weak. The right thumb was atrophic. There was a hypertrichosis as well as redness, heat and perspiration of the right hand. There was a hypesthesia for all forms of stimulation in the hand, especially in the radial region; less in the ulnar region. This hypesthesia rose along the posterior surface of the forearm and covered all the territory of the ulnar nerve; but there was a corresponding hyperesthesia in the musculocutaneous distribution, as well as in the internal cutaneous distribution. Above the scar there was a region of complete anesthesia. The hyperesthesia rose higher along the circumflex nerve and the posterior branches of the cervical nerves and included the great occipital distribution, even involving the superficial cervical plexus, though not the territory of the trigemini. There was some hyperesthesia of areas governed by a few dorsal intercostal nerves. There were also spontaneous pains in these hyperalgesic regions. The musculocutaneous nerve could be felt to be thick and swollen, indicating a perineuritis. There were no neuropathic stigmata, but the knee-jerks were exaggerated a little more on the right side.

The convulsions appeared two or three times a day, the pain would get worse along the arm, rise to the head, following the hyperesthetic zone, then invade the interior of the head, whereupon objects would appear to turn and the ears would buzz. The right leg, and especially the right arm, would begin to tremble. The man would have to support himself to avoid falling. He saw shadows moving, colored trees, occasionally persons. When the vertigo got stronger, he lost consciousness. The extremities of the right side stiffened and carried on jerky movements. These sometimes extended to the left side. The seizure lasted from five to fifteen minutes, and sometimes occurred in the middle of the night. Fatigue followed but headache disappeared after an attack.

The diagnosis of Brown-Séquard’s epilepsy was made. If the musculocutaneous trunk was compressed, a crisis was produced with pain radiating to the head, obscuration of vision, numbness in the arm, and tremors. Electrical treatment was resorted to for analgesic effect. There was a certain improvement during May, so that the diurnal dizziness disappeared. May 19 he had a period of 24 hours without any vertigo. In June no further improvement occurred.

An operation was performed June 23, 1915. The two cicatrices were excised, and some fragments of cloth were removed. Three Jacksonian crises followed the operation, and there was another seizure next day. Frequent headaches followed without crises. More seizures appeared in the night during July, and their frequency increased. Pains persisted along the arm and in the back of the head; the musculocutaneous perineuritis was still intense. Prolonged baths for the arm were begun August 4, two baths of two hours each, at 40 deg. each day. Following August 10 there was an improvement, which stopped as soon as the baths were omitted, with diminution of the vertigo and the hyperesthesia. This improvement continued; the baths were made to last three hours. There were no attacks from August 21 to 26 whereupon they then returned for two days. The pains had much diminished in the arm but persisted in the occiput. A few night attacks occurred August 30 and 31, September 5 and 6, as well as September 19 and 20, 25 and 26, and 27.

The occipital pain had now become less; the musculocutaneous nerve was not so large. Only a few headaches followed during the months of October, November, and December. After November 3 the baths were stopped and the arm was kept wrapped in a warm compress. There was still a certain hyperesthesia, the knee-jerks had become less exaggerated. Massage and mechanotherapeutic exercises were begun. There were no more attacks after September 27.

Re Brown-Séquard’s epilepsy, Lépine remarks that besides the case of Mairet and Piéron, Hurst and Souques have published cases. Lépine himself has observed two cases: one followed a nerve wound in the foot; another, a penetrating wound of the chest. As a rule, such Brown-Séquard epilepsies appear a number of months after trauma; as a result of irritation in the scar. Lépine’s subjects were taken for simulators because they had not received any cranial wound. The prognosis should be guarded, though the outcome in Case 69 appears to have been favorable.