Università degli studi di Modena e Reggio Emilia

Drug-induced nephrolithiasis is a rare condition in children. The involved drugs may be divided into two different categories according to the mechanism involved in calculi formation. The first one includes poorly soluble drugs that favor the crystallization and calculi formation. The second category includes drugs that enhance calculi formation through their metabolic effects. The diagnosis of these specific calculi depends on a detailed medical history, associated comorbidities and the patient's history of drug consumption. There are several risk factors associated with drug-induced stones, such as high dose of consumed drugs and long duration of treatment. Moreover, there are some specific risk factors, including urinary pH and the amount of fluid consumed by children. There are limited data regarding pediatric lithogenic drugs, and hence, our aim was to perform a comprehensive review of the literature to summarize these drugs and identify the possible mechanisms involved in calculi formation and discuss the management and preventive measures for these calculi.

Background: Hypospadias is one of the most common congenital abnormalities in male. Nowadays, hypospadias surgical repair has become highly demanding and deeply investigated with more than 300 corrective procedures. Its success is assessed by the “reoperation rate” that occurs short after the surgery within a brief follow-up (6-12 months). However, short-term outcomes may not reflect the long-term ones, as hypospadias repair may influence adolescence and adult life. This study aims to identify the cosmetic, functional and psychosexual outcomes on a long-term follow-up and to suggest an innovative approach to the hypospadiac patient’s care, as well as providing a review of a singol center experience. Methods: Medical records of 398 patients treated by the same surgeon for hypospadias between August 2001 and December 2017 were reviewed. Families were reached by phone and invited to attend a free-charge follow-up examination. A life-related interview and 3 validated questionnaires (the Penile Perception Score-PPS, the Hypospadias Objective Score Evaluation-HOSE, the International Index of Erectile Function-5-IIEF5) were used, according to the age, to compare the parents’, patients’ and surgeon’s opinion on long-term outcomes. Results: 187 patients were included in the study (response rate 47%). 46 patients (24.6%) presented at least one complication after the repair with a mean elapsed time of 17.6 months (SD 18,96). Longitudinal differences in surgical corrective procedures (p<0.01), clinical approach (p<0.01) and hospitalisation after surgery (p<0.01) were found. Cosmetic data from the PPS were similar among patients and parents, with no significant differences according to patients’ age nor to the type of hypospadias: 83% of the patients and 87% of the parents were satisfied with the cosmetic result. A significant difference in functional outcome relating to the type of hypospadias was reflected by the HOSE among patients (p<0.001), parents (p:0.02) and surgeon (p<0.01). Patients’ HOSE total score was consistently lower compared to the surgeon one (p<0.01). The HOSE satisfaction rate on functional outcome was 89% for patients and 92% for parents. No data were available from the IIEF5 questionnaire. Conclusion: Long-term hypospadias outcomes still represent a debated issue for scientific community and a standardized approach to evaluate the consequences of surgery through time is needed. We propose an innovative algorithm in attempt to fill the gap of the present literature.

L’ incremento del volume testicolare in epoca prepuberale è un segno da indagare innanzi tutto nel sospetto di pubertà precoce, senza escludere a priori altre cause.