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Abstract

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Purpose : The extent of ESWL(Extracorporeal Shock Wave Lithotripsy), a treatment
for urinary calculus, shows gradual development and the treatment has become generally
known as a noninvasive, safe, and efficacious method. Although the testicular effects are
not within the vicinity of shock waves in carrying ESWL as a treatment for urinary
calculus, research was initiated to examine effects which shock waves might cause on
the testis.
Materials and Methods : After applying shock waves at intensity 4 for 1,000 times to
the testis of Sprague Dawley immature rat, the histopathologic changes within the tissue
of testis were observed after 1, 7, 14, 28 days, respectively.
Results : In the case of the experimental group having shock waves on the testis,
destruction of seminiferous tubules, necrosis, and hemorrhage were found out a%or a
day. One week later the atrophy of seminiferous tubules, interstitial fibrosis, and a small
portion of chronic inflammatory cell appeared The capillary proliferation near the testis
capsule also appeared. Two weeks later somewhat atrophied seminiferous tubules and
proliferation of Leydig cells appeared. Diversely atrophied seminiferous tubules, diffusion
of Leydig cell proliferation, calcified tubules, and foreignbody reaction were discovered
after 4 weeks. As times went on, the tendency of recovery appeared.
Conclusions : Noxious influences such as testicular atrophy and disturbance of
spermatogenesis occurred in inflicting immediate shock wave on the testis. Therefore the
need of more researches concerning long-term sequelae and the influences on the human
body should be taken into consideration.(Korean J Urol 1998; 39: 542¡­5)

Å°¿öµå

Extracorporeal shock wave; Testis; Spermatogenesis;

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