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Hum. Reprod. Advance Access published online on December 23, 2004
Human Reproduction, doi:10.1093/humrep/deh707
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Human Reproduction © European Society of Human Reproduction and Embryology 2004; all rights reserved
Received October 7, 2004
Accepted November 24, 2004

Case Report

Secondary male factor infertility after Roux-en-Y gastric bypass for morbid obesity: Case report

Antonio Scotto di Frega 1, Brian Dale 1, Loredana Di Matteo 2, and Martin Wilding 1*

1 Centre for Reproductive Biology, Clinica Villa del Sole, Via Manzoni, 15, Naples, Italy
2 Centre for Reproductive Biology, Clinica Villa del Sole, Via Manzoni, 15, Naples, Italy; Facolta di Medicina e Chirurgia, II Università degli Studi di Napoli, Via Costantinopoli, 16, 80126 Naples, Italy

* To whom correspondence should be addressed.
Martin Wilding, E-mail: martinwilding{at}hotmail.com


  Abstract

Surgical treatments such as the Roux-en-Y gastric bypass operation result in the successful treatment of morbid obesity; however, this type of operation may cause long-term side effects due to the reduced absorption of nutrients. Here, we present data suggesting that this operation can result in secondary infertility in males. Six healthy, previously fertile male subjects presented in our centre for secondary infertility after a Roux-en-Y gastric bypass operation for morbid obesity. Reproductive function was assessed with a series of spermiograms, and by testicular biopsy. Secondary azoospermy with complete spermatogenic arrest was diagnosed. The results suggest that weight reduction surgery may cause reproductive dysfunction.

Keywords: male factor infertility; obesity; Roux-en-Y gastric bypass; spermatogenesis.
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