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Biomedical subjects

F Mantovani

Publications and source records attributed to F Mantovani.

63 records · Page 4Linked to original sources

Multiple clonal chromosome abnormalities in Peyronie's disease.

Numerical and structural chromosome aberrations were found in cell plaque metaphases from 9 of 14 patients with Peyronie's disease. In two cases there was evidence of clonal evolution for some of the chromosomal aberrations observed. The Y chromosome was the most frequently involved in numerical changes. Four of 9 cases with abnormal karyotype showed more than one abnormal, cytogenetically unrelated clone. Our findings suggest the possibility of a multiclonal origin for this benign tumor, and confirm the presence of chromosome instability in this cell growth disorder.

Adult↗

[Early diagnosis and correct treatment of cryptorchism].

Diagnosis in cryptorchidism should be as early as possible for therapeutical purposes and for the achievement of most positive results. Early but also exact diagnosis allows a selective therapy concerning type of procedure and age of performance. Aims of early diagnosis and selected treatment are: prevention of infertility and eventual decrease of androgenic endocrinal function in the adult; prevention of torsion in retractile testis; prevention of trauma in perineal ectopic situation; prevention of cancer especially in cryptorchidism of the adult; prevention of psychogenic defects of the empty scrotum. Those goals can be obtained by different approaches: pharmacological (hormonal stimulation), surgical (orchidopexy) or by their association. If hormonal administration is not suitable or without results surgical approach will be adopted. Which is now the most suitable age for surgery? Testicular damages begin at the second year of life. Therefore operation should be acted in advance. However, up to date international acknowledgement is in favour of surgical management around the fourth year for the advantages of a more mature anatomical situation without reducing quality of results. Purpose of early diagnosis and selective therapy in cryptorchidism is to avoid irreversibility of severe histological alteration able to compromise gonadal, especially germinal, function. It is never to forget that the high level of infertility in cryptorchidism can be depending not only on evident alteration in number, motility and morphology of spermatozoa but also on morphofunctional defects escaping from the routine seminal examination. All that is in tight connection with the intrinsic dysmorphism in cryptorchism where the abnormal position of the testis is only a partial aspect.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

[Injuries of the urethra and corpora cavernosa].

Authors present a synthetic review on the etiopathogenetic classification of the posttraumatic urethral and cavernosal pathology. Furthermore they propose the current therapeutic assessment adopted at the Institute of Urology of Milan, both in case of urgent management and for elective treatment.

Drainage↗

[Enoxacin in the treatment of bacterial prostato-cystitis].

Thirty-three patients suffering from acute, subacute or chronic prostatovesiculitis were admitted to an open, non comparative trial. Enoxacin was administered at the daily dosage of 400 mg every 12 hours for 10 days starting from the enrollment. A second cycle of treatment was performed if cure was not obtained with the first cycle. Treatment efficacy was established by assessing patient symptoms related to the infection, such as pollakiuria and dysuria, consistency and volume of prostate and spermatic vesicles (evaluated by rectal examination and transrectal ultra-sonography); bacterioscopical and bacteriological evaluations of prostate/vesicles secretion with sensitivity testing were also carried out. All observations were collected at baseline, 5 and 30 days after the end of the first cycle and 5 days after the end of the 2nd cycle of treatment. After the first cycle of treatment, cure was obtained in 22 subjects (67%) and clinical improvement in 24 (73%). All but one patients still infected at the end of the first treatment period, showed improvement (5; 45.5%) or cure (6; 54.5%). The end of the second cycle None of the 22 patients cured with one cycle of treatment relapsed within 30 days after the end of treatment, confirming they really achieved cure. Side effects were observed only in 1 case (mild vertigo); no drop outs were observed. These results suggest that enoxacin may be successfully used in the treatment of prostato-vesiculitis.

Acute Disease↗

A simple method for ex vivo evaluation of biomaterial interaction with blood platelets.

The process of thrombus formation, as a consequence of the interaction of artificial surfaces with blood, is related to the activation of blood platelets. A simple ex vivo method, which is suitable for the evaluation of the platelet-surface interaction is described. This method has been used to compare the haemocompatibility of several artificial materials, including nylon-6, Silastic and pyrolytic carbon.

Animals↗

Evaluation of corpora alterations and erectile dysfunction following radical surgery for Peyronie's disease and long-term follow-up on 152 operated patients.

The radical surgical option we propose for Peyronie's disease consists in removing the sclerohyalinotic focus of disease and replacing it by an autologous dermal graft taken from the upper outer thigh area. Between 1981 and 1991, we operated on 335 patients with Peyronie's disease, 152 of whom underwent plaque excision and dermal graft. All could be assessed with a 2-year follow-up. Two main complications were observed: mild penile flexure due to scar retraction of the graft (35% of cases), and partial erectile deficit with decreased corporal rigidity (17% of cases). The degree of graft retraction is linked to the individual's histologic response. A mild deviation of the penis can occur some months after surgery and is not a relapse flexure due to disease progression, but is mere scar retraction and will spontaneously regress. Because the patient will date the onset of a postoperative erectile deficit from the time of the operation, it is advisable to assess preoperatively the erectile ability of all patients. Furthermore, an impaired erectile response could result from hypoaesthesia of the glans, postsurgical stress, and fibrosis of the erectile tissue. A retrospective assessment of radical surgery cases involving plaque excision and dermal graft led us to propose this option where precise indications apply, providing that other alterations of the erectile function are preoperatively assessed.

Adult↗