Abstract：
OBJECTIVE:To compare outcomes of the original Koyanagi technique with the Hayashi modification in severe hypospadias, i.e. hypospadias with a division of the corpus spongiosum located behind the penile midshaft associated with marked hypoplasia of the ventral aspect of the penis and a non-preservable urethral plate. Choice of technique for treating severe hypospadias is discussed. PATIENTS AND METHODS:Twenty-six patients (group I) were operated in Lyon using the original Koyanagi procedure and 31 (group II) underwent a modified Hayashi procedure in Paris. Most patients received preoperative androgenic stimulation. Mean follow up was 25 months (group I) and 34 months (group II). RESULTS:Sixteen patients (61.5%) in group I and 19 (61.3%) in group II developed complications leading to 21 additional procedures in each group. Urethral dehiscence was found in 11/26 patients in group I (42.3%), and in 6/31 patients in group II (19.3%); fistulae were respectively found in 5/26 (19.2%) and 12/31 (38.7%), and stenosis in 9/26 (34.6%) and 5/31 (16.1%) patients. Urethrocele was found in 7/26 (26.9%) and 5/31 (16%) patients, respectively. Twelve (group I) and 7 (group II) patients are awaiting re-operation. CONCLUSION:Although the complication rate is quite similar between the original and the modified Koyanagi procedure, the Hayashi technique seems to provide a better distal blood supply to the reconstructed urethra.
journal_name
J Pediatr Uroljournal_title
Journal of pediatric urologyauthors
Catti M,Lottmann H,Babloyan S,Lortat-Jacob S,Mouriquand Pdoi
10.1016/j.jpurol.2009.03.010subject
Has Abstractpub_date
2009-08-01 00:00:00pages
300-6issue
4eissn
1477-5131issn
1873-4898pii
S1477-5131(09)00290-3journal_volume
5pub_type
临床试验,杂志文章abstract：INTRODUCTION:Testicular microlithiasis (TM) is a condition characterized by calcium deposits within the testis, usually detected incidentally during ultrasonography of the scrotum. TM has been associated with the presence of, and possibly the development of, testicular malignancy. Our aim was to document international ...
journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
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abstract：INTRODUCTION:Bladder exstrophy is a rare, congenital, complex malformation where the underlying cause is largely unknown. Both environmental and genetic mechanisms are thought to be involved. There are divergent results concerning the prevalence, birth descriptive data, and potential maternal risk factors for bladder e...
journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
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doi：10.1016/j.jpurol.2016.04.015
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journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
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更新日期：2020-06-01 00:00:00
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
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更新日期：2020-10-01 00:00:00
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journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
doi：10.1016/j.jpurol.2014.05.013
更新日期：2014-12-01 00:00:00
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
doi：10.1016/j.jpurol.2017.02.010
更新日期：2017-06-01 00:00:00
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journal_title：Journal of pediatric urology
pub_type： 临床试验,杂志文章
doi：10.1016/j.jpurol.2010.12.010
更新日期：2011-08-01 00:00:00
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
doi：10.1016/j.jpurol.2014.08.010
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
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journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
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更新日期：2014-12-01 00:00:00
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journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
doi：10.1016/j.jpurol.2009.05.012
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journal_title：Journal of pediatric urology
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
doi：10.1016/j.jpurol.2015.06.003
更新日期：2015-08-01 00:00:00
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
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更新日期：2010-08-01 00:00:00
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
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更新日期：2015-08-01 00:00:00
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journal_title：Journal of pediatric urology
pub_type： 杂志文章
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journal_title：Journal of pediatric urology
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