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Year : 2017  |  Volume : 20  |  Issue : 7  |  Page : 811-815

Experience with the bonanno catheter in the management of OHSS from IVF-ET Cycles

1 Gynescope Specialist Hospital, Gynescope Street, Port Harcourt, Nigeria
2 Department of Obstetrics and Gynaecology, University of Port Harcourt Teaching Hospital, Rivers, Nigeria

Correspondence Address:
J E Okohue
Gynescope Specialist Hospital, Rukpakulosi New Layout, Port Harcourt, Rivers State
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1119-3077.212440

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Objective: To document our experience with the use of the Bonanno catheter as a closed abdominal drain for OHSS Methods: A retrospective study of all IVF embryo transfer (ET) treatment cycles carried out between May 2006 and April 2009 at a dedicated IVF centre. Case notes of patients with OHSS were retrieved and the outcome of the continuous closed abdominal drain with Bonanno catheter documented. Result: Within the period under review, 234 patients had controlled ovarian stimulation with ultrasound guided egg retrieval. Two hundred and twenty eight (228) got to the stage of embryo transfer with 72 clinical pregnancies. The clinical pregnancy rate was 31.58%. Fourteen (6%) of those who were stimulated developed OHSS and had a closed abdominal drain of the ascitic fluid using the Bonanno catheter. The average number of days of the abdominal drainage was 7.5days and the average volume of ascitic fluid drained from a patient per day was 2454.9 + 748mls. Eight (8) patients who had OHSS achieved clinical pregnancy (six intrauterine, one ectopic and one heterotopic pregnancies), giving a clinical pregnancy rate of 57.14% in patients with OHSS. Four patients had blocked Bonanno catheters and three of them had the catheter changed while the fourth had the catheter successfully flushed. Four patients had the insertion site dressing changed due to soaking with ascitic fluid. There was no incidence of injury to intra abdominal organs or broken catheter. Conclusion: Bonanno Catheter is both effective and safe in draining ascitic fluid following OHSS.

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