Despite increasing evidence of its potential clinical value, falloposcopy h
as not yet found widespread use. In a large prospective international multi
centre study we investigated the hypothesis that limited technical reproduc
ibility may be of crucial significance in this regard. From 1994 to 1998, d
ata on 367 patients with 639 tubes were recorded from 18 centres (median nu
mber of falloposcopies 22). Falloposcopy was performed using hysteroscopic
ostium access, coaxial tubal cannulation and retrograde visualization under
laparoscopic control. The procedure was successful in 69.6% of the tubes.
Failures occurred in 6.1% during hysteroscopy, in 10.6% during the cannulat
ion step and in 16.4% during visualization. While predominantly intracavita
ry pathology or thick endometrium were found to interfere with hysteroscopi
c ostium access, technical insufficiencies resulting in catheter damage or
vision disturbing light reflexions were identified to be responsible for mo
st cannulation and visualization failures, confirming the importance of the
se factors. The number of patients who received a complete falloposcopic ev
aluation did not exceed 57%, Additionally, 23.7% of patients may have profi
ted from unilateral success depending on the individual indication. As a co
nsequence of these technically limited results it was concluded that the me
thod currently qualifies for selected indications rather than for routine c
linical application.