The Journal of urology
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Micturition syncope is a poorly understood neurophysiological event. Increased vagal stimulation at night, vagal sensory input from the bladder during micturition and standing position during voiding represent the most common triggering factors of this syndrome. Postural hypotension, caused by standing during micturition, may explain the predominance of male victims. Two cases are reported--a classic male example and an unusual incident in a woman.
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We present our study of the genetics of undescended testes. The occurrence of undescended testes could be confirmed in 1.5 to 4.0 per cent of the fathers and in 6.2 per cent of the brothers of index patients with true undescended testes. The pattern of the familial cluster fits into the gaussian-additive-multifactorial-threshold program. ⋯ Bilateral (more severe) undescended testes are associated with a higher recurrence risk for siblings. The nosological identity of unilateral and bilateral undescended testes have shorter menses and a delay of menarche. Thus, the pituitary hypogonadism of mothers seems to be a predisposing factor for undescended testes in their sons.