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Experimental study was performed on 24 Chinchilla rabbits, which underwent resection of the bladder with building of defect by membrane "Collost", created on the basis of type I collagen. The functional state of the bladder in situ was assessed by infusion cystomanometry during repeated surgery at 7, 14 day and at 1, 3, 6 months, and at 1 and 1.5 years. It is found that developing detrusor pressure during bladder contractions was decreased by 10 times in the first week of the study; it was in line with the subcompensation after 3 months, and was restored at 6 month. At 1 and 1.5 years, increase of cumulative function of bladder while saving detrusor pressure was observed. Dilating cystoplastics using biopolymer "Collost" provides good long-term functional results.

A comparative analysis of diagnostic examination of 130 men with isolated congenital erectile penile deviation (EPD) aged 14-22 years (mean age 17 years) has demonstrated that true EPD can be determined objectively only at adequate erection. Therefore, the diagnosis should be based not on subjective opinion of the patient but on the results of artificial pharmacological erection or viagra-test in combination with visual erotic and genital stimulation. Vacuum erection test is not justified. In patients with congenital EPD rigidity depends much on correlation between perfusion volume and functional volume of the penis (cavernous volume). The problem of congenital EPD can be formulated as the problem of "long penis". Measurements of the penis in the group of 54 patients with congenital EPD registered a low penile coefficient in 67% cases while a mean length of the penis in all the examinees was longer than a mean standard one and was about 13 cm in relaxed condition. EPD patients often suffer from asthenodepressive disorders deteriorating the copulative function. Psychotherapy and medication of the depressive syndrome result in stabilization of the psychological condition improving quality of life 1.3 times. Thus, an integrative diagnostic and therapeutic approach, due selection of the patients for operative correction of penile deviation can improve quality of the treatment aimed both at correction of erectile malformation and psychosexual adaptation of the patients.