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Stereotactic amygdaloidotomy for aggressive behaviour
  1. L. G. Kiloh,
  2. R. S. Gye,
  3. R. G. Rushworth,
  4. D. S. Bell,
  5. R. T. White
  1. Psychiatric Research Unit, Callan Park Hospital, Rozelle, N.S.W., Australia
  2. University of New South Wales, Kensington, N.S.W., Australia


    Amygdaloidotomy was performed bilaterally on 15 and unilaterally on three patients exhibiting severe aggressive or self-mutilating behaviour. Nine subjects (50%) were improved a year after operation; improvement was maintained in seven (39%) for periods ranging from 27 months to nearly six years. Four non-epileptic cases had convulsions during the period of review; one of them has a persistent mild hemiparesis dating from the postoperative period. There was a tendency for epileptics to respond better than non-epileptics and for mentally retarded patients to respond poorly, but none of the differences was statistically significant.

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