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Effects of extra-corporeal shock waves on penile hemodynamics and histopathology in rats

Asian Journal of Andrology 2002年第4期4卷 249-253页

作者： Ahmet Tefekli Abdullah Armagan Bulent Erol Murat Celtik Isi Kilicaslan asiye nurten Ates Kadioglu Department of Urology Department of UrologyDepartment of UrologyDepartment of UrologyDepartment of Pathology Medical Faculty of IstanbulDepartment of Neuroscience Experimental Research Institution University of lstanbul TurkeyDepartment of Urology

Aim: To study the effect of extra-corporeal shock wave (ESW) on the penile hemodynamics and histopathology in rats. Methods: Adult male Sprague-Dawley rats were divided at random into 3 groups. ESW application was performed with a Siemens Lithostar with the rats under anesthesia lying prone on the balloon probe. Rats in Group Ⅰ received a total of 1000 shocks at 18 kV and immediately underwent hemodynamic evaluation performed by direct electrostimulation of the cavernous nerve and measurement of intracavernous pressure (ICP). Rats in Group Ⅱ received 3 times 1000 shocks at 18 kV at weekly intervals and hemodynamic evaluation was performed 1 month after the last ESW application. Group Ⅲ served as the control. Histopathological examinations of penile tissues were done on Masson's trichrome and hematoxylin and eosin stained sections. Results: Penile hemodynamic evaluation showed a trend toward a diminished mean maximal ICP, duration of erection, ICP during the plateau phase and maximal ICP/blood pressure ratio in Group Ⅰ, although there was no significant significance. The mean latency period in Groups Ⅰ and Ⅱ was prolonged. Petechial bleeding within tunical layers and small loci of hemorrhage within the corpora cavernosa were observed in Group Ⅰ. However, histopathological examination failed to reveal any significant differences between the groups in terms of smooth muscle content, tunical thickness, organization of collagen bundles and elastic fiber-lattice framework. Conclusion: ESW has certain damaging effects on the penis. (Asian J Androl 2002 Dec; 4: 249-253)

关键词： penis extra-corporeal shock wave Peyronie's disease tunica albuginea

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