A. Manyande et al., PREOPERATIVE REHEARSAL OF ACTIVE COPING IMAGERY INFLUENCES SUBJECTIVEAND HORMONAL RESPONSES TO ABDOMINAL-SURGERY, Psychosomatic medicine, 57(2), 1995, pp. 177-182
Existing evidence suggests that preoperative psychological preparation
that is designed to reduce anxiety may sensitize cortisol and adrenal
ine responses to surgery. In a controlled trial of abdominal surgery p
atients, we therefore tested the effects of a preoperative preparation
that used guided imagery, not to reduce anxiety, but to increase pati
ents' feelings of being able to cope with surgical stress; 26 imagery
patients were compared with 25 controls who received, instead, backgro
und information about the hospital. State-anxiety was similar in each
group, but imagery patients experienced less postoperative pain than d
id the controls, were less distressed by it, felt that they coped with
it better, and requested less analgesia, Hormone levels measured in p
eripheral venous blood did not differ on the afternoon of admission, b
efore preparation. Cortisol levels were, however, lower in imagery pat
ients than in controls immediately before and after surgery. Noradrena
line levels were greater on these occasions in imagery patients than c
ontrols. The results are interpreted in relation to two theories. One
states that preoperative ''worry'' reduces surgical stress. The other
concerns the influence of active and passive coping on endocrine respo
nses to stress.