Obesity has become a major health concern, with a prevalence rate approaching epidemic states. An inverse relationship between men's body weight and semen parameters has been observed, suggesting a favourable role for weight loss in improving fertility. This prospective study included 46 patients undergoing sleeve gastrectomy, who were investigated with semen analysis and serum hormone tests before and 12 months after surgery. Patients were divided into three groups according to their initial sperm concentration; median loss of body mass index was used as a cut-off to further classify patients according to extent of weight loss. Patients' preoperative seminal investigations revealed azoospermia in 13 (28.3%), oligospermia in 19 (41.3%) and normal sperm concentration in 14 (30.4%). Overall, only serum testosterone significantly increased after surgery (P < 0.001). Between study groups, the increase in sperm concentration was statistically significant in men with azoospermia and oligospermia (both P < 0.05), whereas serum testosterone was statistically significant in all groups (P < 0.001). Changes in semen and hormone tests were not affected by the extent of weight loss experienced by patients. Weight loss from bariatric surgery had a favourable effect on serum testosterone levels and semen parameters of patients with pre-existing azoospermia and oligospermia.

Sperm DNA fragmentation (SDF) has emerged as an important biomarker in the assessment of male fertility potential with contradictory results regarding its effect on ICSI. The aim of this study was to evaluate intracytoplasmic sperm injection (ICSI) outcomes in male patients with high SDF using testicular versus ejaculated spermatozoa. This is a prospective study on 36 men with high-SDF levels who had a previous ICSI cycle from their ejaculates. A subsequent ICSI cycle was performed using spermatozoa retrieved through testicular sperm aspiration. Results of the prior ejaculate ICSI were compared with those of the TESA-ICSI. The mean (SD) SDF level was 56.36% (15.3%). Overall, there was no difference in the fertilization rate and embryo grading using ejaculate and testicular spermatozoa (46.4% vs. 47.8%, 50.2% vs. 53.4% respectively). However, clinical pregnancy was significantly higher in TESA group compared to ejaculated group (38.89% [14 of 36] vs. 13.8% [five of 36]). Moreover, 17 live births were documented in TESA group, and only three live births were documented in ejaculate group (p < .0001). We concluded that the use of testicular spermatozoa for ICSI significantly increases clinical pregnancy rate as well as live-birth rate in patients with high SDF.

In 1992 and subsequently, several reports indicated that ICSI was a successful technique to achieve clinical pregnancy and live birth using spermatozoa with severely impaired characteristics. The initial optimism over the ability of ICSI to overcome significant sperm abnormalities was later tempered by the findings of more recent publications suggesting that some sperm deficits may not be as effectively treated with ICSI. In search for effective treatment for couples with severe male factor, a number of small retrospective and prospective studies have reported high pregnancy and live birth rates using testicular sperm for men with necrozoospermia, cryptozoospermia and oligozoospermia with or without elevated sperm DNA damage. Although the data suggest that there may be some benefit in performing testicular sperm retrieval (TSR)-ICSI in select groups of non-azoospermic infertile men, there are potential risks involved with TSR. Clinicians should balance these risks prior to the recommendation of TSR-ICSI on the result of a semen analysis or sperm DNA test alone. Careful evaluation and management of male factor infertility is important. The use of TSR-ICSI in the absence of specific sperm DNA defects is still experimental.

The aim of the study was to evaluate reproductive outcomes in a cohort of infertile couples with severe and complete asthenozoospermia undergoing TESA (testicular sperm aspiration) with ICSI. We conducted a retrospective study of 28 couples with complete or severe asthenozoospermia who underwent TESA between January 2010 and December 2015. We compared TESA-ICSI outcomes of these couples to ejaculate ICSI outcomes of 40 couples with severe asthenozoospermia treated during the same time period at our institution. Couples with female factor infertility and/or female aged ≥39 were excluded. Sperm retrieval rates and ICSI outcomes [(MII oocytes, fertilization rate, good embryo rate (transferred and frozen), couples with embryo transfer (per cycle started), clinical pregnancy (per embryo transfer)] were recorded. Patients were grouped based on whether they had ejaculated (Ej-group) or testicular (TESA-group) spermatozoa used. Testicular sperm patients were further classified based on whether they had complete asthenozoospermia (0% total motility) (Tc-group) or severe asthenozoospermia (≤1% progressive motility) (Ts-group). Mean (±SD) male and female ages were 36 ± 6 and 32 ± 4, respectively. Sperm recovery by testicular sperm aspiration (TESA) was successful in 100% (28/28) of the men. The overall clinical pregnancy rate (CPR) per cycle started was 34% (23/68) with a mean of 1.1 ± 0.4 embryos transferred per transfer. Fertilization rates were significantly lower in TESA-group compared to Ej-group (52% vs. 67%, respectively; p = 0.001), while male age was significantly higher in TESA-group compared to Ej-group (34 ± 6 vs. 37 ± 6, respectively; p = 0.03). Moreover, female age was significantly higher in Tc-group compared to Ts-group (30 ± 4 vs. 33 ± 3, respectively; p = 0.0285). However, there were no significant difference in clinical pregnancy rate per embryo transfer in the Tc-group, Ts-group, and Ej-group (50% vs. 45% vs. 57%, respectively; p = 0.8219). The data suggest that testicular sperm-ICSI is no better than ejaculated sperm-ICSI in couples with severe or complete asthenozoospermia. Randomized, controlled trials comparing ejaculated vs. testicular spermatozoa are needed to assess the true benefit of TESA-ICSI in these couples.

Varicocele ligation has been proven to restore semen parameters and improve pregnancy rates in men with clinical disease. However, its effect in men with severe oligozoospermia (SO) is less clearly elucidated. This original report and meta‐analysis examined the impact of subinguinal microsurgical varicocelectomy on semen parameters and fertility outcomes of men with SO. A retrospective chart review of 85 patients was conducted on patients with SO who underwent microsurgical subinguinal varicocelectomy. A literature search was carried out according to the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) guidelines. A total of 8 studies investigating the effects of varicocele ligation in men with SO were included for the meta‐analysis. The original study reported significant improvements in semen parameters following surgery. 78 patients had a pre‐operative TMSC < 5 million. Following surgery, 9 (11.5%) patients had a total motile sperm count (TMSC) between 5 and 9 million, while 14 (17.9%) patients had a TMSC > 9 million. Furthermore, the meta‐analysis demonstrated a statistically significant increase in sperm count, total motility and TMSC following surgery. The reported natural pregnancy rate was 27.5%. Varicocelectomy does present as an important treatment option for SO patients because improvements in TMSC can broaden their fertility treatment options.