The results of in-vitro fertilization in natural cycles (NIVF) in women wit
h tubal infertility at our department are presented. The study had a prospe
ctive design. We needed 75 cycles in 50 patients to obtain one oocyte from
each patient. Successful oocyte recovery rate was 67% per started cycle and
82% per oocyte retrieval, Thirty-five embryos were transferred and resulte
d in four ongoing pregnancies (5.3% per cycle, 6.5% per oocyte retrieval, 1
1.4% per embryo transfer and 11.4% per embryo). Six patients who participat
ed in the study made a second attempt at NIVF. Five of them conceived of wh
ich four were ongoing. Cumulative ongoing pregnancy rates are 9.8% per cycl
e, 11.9% per oocyte retrieval, 19.5% per embryo transfer and 19.5% per embr
yo. We conclude that NIVF is an easy cheap and realistic method to obtain a
pregnancy for patients with tubal infertility.