Kg. Cooper et al., Comparison of microwave endometrial ablation and transcervical resection of the endometrium for treatment of heavy menstrual loss a randomised trial, LANCET, 354(9193), 1999, pp. 1859-1863
Citations number
29
Categorie Soggetti
General & Internal Medicine","Medical Research General Topics
Background Various new endometrial ablation techniques have emerged for the
treatment of menorrhagia. We undertook a randomised controlled trial compa
ring one new technique, microwave endometrial ablation (MEA), with a proven
procedure, transcervical resection of the endometrium (TCRE), for women wi
th heavy menstrual loss.
Methods 263 eligible and consenting women, referred for endometrial ablativ
e surgery, were randomly assigned MEA (Microsulis plc, Waterlooville, Hamps
hire, UK; n=129) or TCRE (n=134). 230 participants were needed to give 80%
power of demonstrating a 15% difference in satisfaction with treatment All
procedures were done under general anaesthesia 5 weeks after endometrial th
inning with goserelin 3.6 mg. Questionnaires were completed at recruitment
and at 12 months' follow-up. The primary outcome measures were patients' sa
tisfaction with and the acceptability of treatment. Analysis was by intenti
on to treat among women followed up to 12 months (n=116 MEA, n=124 TCRE).
Findings At 12 months, 89 (77%) women in the MEA group and 93 (75%) in the
TCRE group were totally or generally satisfied with their treatment (95% CI
for difference -12 to 17) and 109 (94%) versus 112 (90%) found it acceptab
le (-11 to 35), Mean operating limes were shorter for MEA than for TCRE (11
.4 vs 15.0 min, p=0.001) and the postoperative stay slightly but not signif
icantly shorter. One blunt perforation occurred in each study group resulti
ng in one immediate hysterectomy (TCRE group). Of eight health-related qual
ity of life dimensions, ail were improved after MEA (six significantly) and
seven were improved after TCRE (all significantly).
Interpretation Both techniques achieved high rates of satisfaction and acce
ptability and both improved quality of life after 1 year. However, we canno
t exclude a difference in satisfaction between the groups of less than 15%.
MEA seems a suitable alternative to TCRE.