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¿äµµÇÏ¿­ ±³Á¤¼ú ÈÄ ¿ä¼Ó °Ë»çÀÇ ÀÇÀÇ The Significance of Uroflowmetry after Repair of Hypospadias

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Abstract

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Purpose: To determine the role of uroflowmetry in the evaluation of the functional
results of hypospadias repair we reviewed the asymptomatic patients who underwent
hypospadias repair.
Materials and Methods: A total of the 34 patients was available for this study. Age of
patient were ranged from 3 to 14 years(mean; 8.8¡¾4.67 years) at the time of
uroflowmetry and followup ranged from 7 months to 3.5 years(mean; 2.4¡¾0.88 years)
after repair of hypospadias. The peak uroflow were compared to age dependent
nomograms that indicate the normal range of peak flows according to the voided
volumes. Flow rates were defined as low if they decreased below 90 percentile of the
expected normal range.
Results: The peak urine flow in hypospadias repair patients(12.1 ¡¾8.74m1/sec) was
not significantly different from normal control(12.9¡¾5.10 ml/sec). Five of the 34 patients
had peak flow below the normal ranges. One of the 17 patients with chordee and one of
the 11 without chordee showed low peak urine flow. One of the 14 patients with
anterior hypospadias, one of the 8 with posterior hypospadias and none with mid
hypospadias showed low peak urine flow. According to the methods of repair one of the
12 patients with onlay island flap, one of the 5 with pyramidal procedure and three of
the 6 who had undergone previous attempts at hypospadias in other hospital showed
low peak urine flow Two of the 5 patients who revealed low peak uroflow rate were
managed with periodic meatal dilatation and the 3 were managed with internal
urethrotomy for proximal urethral stricture.
Conclusions: The uroflowmetry is an easy and noninvasive method to detect
asymptomatic urethral stricture In hypospadias repair patients. (Korean J Urol 1998; 39:
485¡­9)

Å°¿öµå

Hypospadias; Uroflowmetry; Asymptomatic stricture;

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