ABSTRACT
Objective: Analysis of renal excretory system integrity and efficacy of radiofrequency ablation with and without irrigation with saline at 2 o C (SF2). Materials and Methods: The median third of sixteen kidneys were submitted to radiofrequency (exposition of 1 cm) controlled by intra-surgical ultrasound, with eight minutes cycles and median temperature of 90 o C in eight female pigs. One excretory renal system was cooled with SF2, at a 30ml/min rate, and the other kidney was not. After 14 days of post-operatory, the biggest diameters of the lesions and the radiological aspects of the excretory system were compared by bilateral ascending pyelogram and the animals were sacrificed in order to perform histological analysis. Results: There were no significant differences between the diameters of the kidney lesions whether or not exposed to cooling of the excretory system. Median diameter of the cooled kidneys and not cooled kidneys were respectively (in mm): anteroposterior: 11.46 vs. 12.5 (p = 0.23); longitudinal: 17.94 vs. 18.84 (p = 0.62); depth: 11.38 vs. 12.25 (p = 0.47). There was no lesion of the excretory system or signs of leakage of contrast media or hydronephrosis at ascending pyelogram. Conclusion: Cooling of excretory system during radiofrequency ablation does not significantly alter generated coagulation necrosis or affect the integrity of the excretory system in the studied model. .
Subject(s)
Animals , Female , Cold Temperature , Catheter Ablation/methods , Kidney/surgery , Models, Animal , Saline Solution, Hypertonic/pharmacology , Kidney/pathology , Necrosis , Organ Size , Reference Values , Reproducibility of Results , Swine , Therapeutic Irrigation , Time Factors , Ultrasonography, Interventional/methods , Urothelium/injuriesABSTRACT
Uma grande revolução no tratamento da disfunção erétil, especialmente após o desenvolvimento dos primeiros inibidores da 5-fosfodiesterase (5-PDE), no final dos anos 90, marcou profundamente a história da sexualidade humana, repercutindo sobretudo na população de difícil tratamento (diabetes mellitus, prostatectomizados por câncer e outros casos de disfunção orgânica). Respeitando a estratégia de tratamento de cada urologista, os pacientes devem ser estimulados a experimentar todos os tipos de inibidores da 5-PDE disponíveis. Na falha da farmacoterapia oral, ou quando houver contraindicação para ela, dever-se-á considerar a injeção intracavernosa e, finalmente, implante cirúrgico de prótese peniana.