The results of selected elective and emergency operations of patients
treated in the surgical department of Bonn University in 1994 and 1995
are presented and compared to the ASA-score. It was possible to show
that old age itself is not a contraindication for major surgical inter
ventions but that lethality mainly depends on concurrent diseases, i.e
. the biological age. The numeric age is not an important factor. Phys
iological ageing only leads to diminished functional capacity, which c
an be partly compensated by more intensive care combined with early me
dical treatment. An age-specific factor which cannot be measured is th
e psychosocial age, the mental health. Mental health has an important
influence on surgery in the aged patient.