Sperm vitality testing is a basic semen examination that has been described in the World
Health Organization (WHO) Laboratory Manual for the Examination and Processing of …

Background Necrozoospermia is a condition found in 0.2%–0.4% of male infertility cases.
The causes of necrozoospermia are multiple: they can be related to testicular and/or post …

Objective: To determine whether intracytoplasmic sperm injection (ICSI) outcome with
testicular sperm is superior to that of ejaculated sperm in men with incomplete …

2. Service de biologie de la reproduction-spermiologie-CECOS, hôpital Jeanne-de-Flandre,
centre hospitalier régional universitaire, 59000 Lille, France; EA 4308 gamétogenèse et …

Objective To investigate whether intracytoplasmic sperm injection (ICSI) using testicular
spermatozoa from necrozoospermic patients results in acceptable fertilization and transfer …

Background Non-obstructive azoospermia (NOA) is considered to be the most severe form
of male infertility. Before the emergence of surgical testicular sperm extraction and assisted …

Clinical management of men producing ejaculates characterized by high levels of dead
sperm and altered seminal plasma factors consistent with epididymal necrospermia …

Objective To investigate the prevalence and clinical implications of biochemical
hypogonadism in infertile men with nonobstructive azoospermia (NOA). Design Cohort …

Fresh semen obtained from infertile men occasionally exhibits the total absence of motile
sperm (100% asthenozoospermia). Vitality tests may reveal that a proportion of the immotile …

In an accompanying manuscript in this issue of Andrology, Tomlinson states that,'...
diagnostic semen analysis has no more clinical value today than it had 25–30 years …