Vasectomy and vasectomy reversal

The influence of shop characteristics on workload control

“…(B) The WLC concepts developed in Eindhoven [Bertrand & Wortmann, 1981] and Lancaster [Tatsiopoulos, 1983;Hendry, 1989;Kingsman et al 1989] avoid estimating the input to the direct loads. They aggregate the direct and the indirect workload of a station by simply adding them and subject this aggregate workload to a norm.…”

Vasectomy review: Sequelae in the human epididymis and ductus deferens

“…A report in the Bulletin of the World Health Organization (Farley et al, 1993) acquitted vasectomy of causing cardiovdscular disease and testicular cancer but returned a verdict of "not proven" for prostate cancer. Most reviews on vasectomy and health, including the most recent by Linnet (1993), Hendry (1994), and a large survey by Coulson et al (1993), mention that a number of men suffer chronic local pain or discomfort, attributed to epididymal distension and sperm granuloma formation. Vasectomy is used as a means of avoiding pregnancy by -50 million couples worldwide (WHO, 1991), and there is a growing body of reports of local morbidity following the procedure.…”

Vasovasostomy

“…In about half of all cases the reason for failure is a stenosis or obstruction of the duct [24]. Another important factor is represented by an epididymal 'block' caused by rupture of a tubule in the epididymis [24,28]. The quality of aspirates, especially the presence of spermatozoa in the aspirate, for further surgical procedures is controversial in the literature [29,75].…”

“…In about half of all cases the reason for failure is a stenosis or obstruction of the duct [24]. Another important factor is represented by an epididymal 'block' caused by rupture of a tubule in the epididymis [24,28].…”

“…The incidence of spermatozoa in the post-epididymal aspirate obtained during vasovasostomy is a positive prognostic marker of surgical success [23][24][25]. However, in 5.7-27% of all cases spermatozoa cannot be detected in the aspirate [23,26,27].…”