Pomeroy technique or Filshie clips for postpartum sterilisation? Retrospective study on comparison between Pomeroy procedure and Filshie clips for a tubal occlusion at the time of Caesarean section.

OBJECTIVE: To compare the failure rate (pregnancies) of a Pomeroy procedure and Filshie clips tubal occlusion at the time of Caesarean section.

METHOD: This is a retrospective observational study done in a district general hospital in the UK. There were 290 sterilisations performed at the time of Caesarean section over the period of 1994-2007. Studied population included 203 Pomeroy procedures and 87 Filshie clips applications. Follow-up period ranged from 2 to 15 years. A birth register and an operating theatre database were used to identify patients who underwent Caesarean section with a tubal occlusion. These patients' names were checked against the antenatal booking database, the early pregnancy assessment unit database, the operating theatre database in case of ectopic pregnancies, and a termination of pregnancy database to recognise failed sterilisation.

RESULTS: There was no failure of tubal occlusion with a Pomeroy procedure (0/203). The failure rate of Filshie clips tubal occlusion was 1.15% (1/87) (p = 0.3). The length of the follow-up period ranged from 2 to 15 years (for Pomeroy procedure, median was 9 years and inter-quartile range (IQR) was 7; for Filshie clip, median was 8 years and IQR was 7).

CONCLUSION: Pomeroy technique appears to carry a lower risk of a failed sterilisation than Filshie clips tubal occlusion at the time of Caesarean section. However, Pomeroy procedure needs to be balanced against the speed and simplicity of Filshie clips tubal occlusion.