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Mal Bebbington Hatcher a Cancer Research Campaign Psychosocial Oncology
Group, Bland Sutton Institute, Royal Free and University College
Medical School, London W1P 7PL, b Mulberry House, Royal
Marsden NHS Trust, London SW3 6JJ
Correspondence to: L Fallowfield
l.fallowfield{at}ucl.ac.uk
Objectives:
To investigate the psychosocial impact of bilateral prophylactic mastectomy for women with increased risk of
breast cancer and to identify, preoperatively, risk factors for
postoperative distress.
Design:
Prospective study using interviews and
questionnaire assessments.
Setting:
Participants' homes throughout the United Kingdom.
Participants:
143 women with increased risk of
developing breast cancer who were offered bilateral prophylactic
mastectomy and who accepted or declined the surgery; a further 11 were
offered surgery but deferred making a decision.
Main outcome measures:
Psychological and sexual morbidity.
Results:
Psychological morbidity decreased
significantly over time for the 79 women who chose to have surgery
(accepters): 58% (41/71) preoperatively v 41%
(29/71) 6 months postoperatively (difference in percentages 17%,
95% confidence interval 2% to 32%; P=0.04) and 60% (39/65)
preoperatively v 29% (19/65) 18 months postoperatively
(31%, 15% to 47%; P<0.001). Psychological morbidity in the 64 women
who declined surgery (decliners) did not decrease significantly: 57%
(31/54) at baseline v 43% (23/54) at 6 months (14%,
0% to 29%; P=0.08) and 57% (29/52) at baseline v 41%
(21/52) at 18 months (16%;
2% to 33%; P=0.11). Greater than
normal proneness to anxiety was more common in the decliners than in
the accepters: 78% (45/58) v 56% (41/73) (22%, 6% to
38%; P=0.006). Accepters were more likely than decliners to believe it
inevitable that they would develop breast cancer (32% (24/74)
v 10% (6/58) (difference in percentages 22%, 9% to 35%;
P=0.003)), and decliners were more likely to believe that screening
could help (92% (55/60) v 74% (55/74) (18%, 5% to 31%;
P=0.007)). Level of sexual discomfort and degree of sexual pleasure did
not change significantly over time in either of the two groups.
Conclusions:
Bilateral prophylactic mastectomy may
provide psychological benefits in women with a high risk of developing breast cancer.
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