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  • Title: Medullary infarction--was it depo-provera?
    Author: Oon CJ, Lee YS.
    Journal: Singapore Med J; 1980 Oct; 21(5):717-9. PubMed ID: 6452693.
    Abstract:
    A possible relation between parenteral Depo-Provera and the subsequent development of medullary infarction in a heavy smoker is reported. The patient, a 40-year old Chinese woman had smoked 30 cigarettes daily for many years. She received injections of 150 mg Depo-Provera in April and July 1979. 2 days after the 2nd injection she was admitted to the hospital for vomiting and vertigo of 2 days duration. Clinical examination showed a 12th nerve palsy with the tongue deviated to the right but no other neurological abnormalities. She was treated symptomatically with intravenous fluids and stemetil and improved. On the 5th day her vertigo and vomiting progressed and she developed more lower brain stem signs. The same day she had a grand mal fit and went into a coma. She died on the 7th hospital day. A partial autopsy limited to the skull revealed minimal atherosclerosis of the vertebral artery but no thrombosis or occlusion. Cut sections after perfusion revealed an area of softening associated with some hemorrhage involving the whole length of the right half of the medulla oblongata dorsal to the olivary nucleus. Histological examination revealed an infarct undergoing liquefaction necrosis. The possibility of a causative relationship is suggested by the development of tinnitis about 12 hours after injection of Depo-Provera.
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