Comparison to other literature
The livebirth rate through natural conception in our neosalpingostomy group of 27.6%, this is in line with previous publications that reported ranges between 20% to 26%.11, 20-23 The number of the overall cumulative livebirth rate in our neosalpingostomy group of 76% is promising; however, this includes also the results of additional second surgeries and IVF treatments. These data are in line with the 72% (2369/3254) intra-uterine pregnancies in women with tubo-peritoneal subfertility after salpingo-ovariolysis and terminal salpingoneostomy in a very large retrospective study.24 The overall cumulative livebirth rate of 85.3% after salpingectomy in our study is higher than the reported ongoing pregnancies of 55.8% (24/43).12 Our higher livebirth rates could be due to the very long follow-up period up to 15 years. In the neosalpingostomy group, 12/58 (20.7%) women had an EP, this is higher than the reported 10% in a systematic review11 but is in line with the outcomes of two prospective cohort studies with respectively 17 and 18%.25, 26 In general, higher EP rates were found to be associated with positive history of pelvic inflammatory disease (PID), a bilateral procedure, perihepatic adhesions, and increasing severity of tubal damage.25, 27 Our study included women with bilateral severe hydrosalpinges, which may increase our EP rate to some extent, however, we could not assess the effect of potential risk factors due to the limitation of the small sample size. These prognostic factors may play a role in the patient selection for neosalpinostomy. In the salpingectomy group, the EP rate is similar to 2.13% in our study to 1.72% in Strandell A’s study.28