Mate-pair genome sequencing reveals structural variants for idiopathic male infertility.

Currently, routine genetic investigation for male infertility includes karyotyping analysis and PCR for Y chromosomal microdeletions to provide prognostic information such as sperm retrieval success rate. However, over 85% of male infertility remain idiopathic. We assessed 101 male patients with primary infertility in a retrospective cohort analysis who have previously received negative results from standard-of-care tests.

Hyoscine butylbromide in pain reduction associated with ultrasound-guided manual vacuum aspiration: a randomized placebo-controlled trial.

Research Question: What is the effect of adding an anti-spasmodic drug to an existing ultrasound-guided manual vacuum aspiration (USG-MVA) protocol to alleviate immediate post-procedure abdominal cramping pain in women treated for early pregnancy loss?

Design: Double-blind, placebo-controlled, randomized controlled trial conducted between February 2018 and January 2020. Participants were assigned to receive a 1-ml intravenous injection containing 20-mg hyoscine butylbromide (HBB) (n=55) or saline (n =56) as a control immediately before USG-MVA. Primary outcome was reduced abdominal pain after adding a 20-mg dose of HBB to the current pain control regimen.

Ovarian reserve and recurrence 1 year post-operatively after using haemostatic sealant and bipolar diathermy for haemostasis during laparoscopic ovarian cystectomy.

Research Question: Is there a difference in the ovarian reserve 1 year post-operatively in those who used a haemostatic sealant or bipolar diathermy for haemostasis during laparoscopic ovarian cystectomy for ovarian endometriomas?

Design: This was an extended follow-up observational study of a previous randomized controlled trial where women aged 18 to 40 years with 3-8 cm unilateral or bilateral endometriomas were randomized to receive haemostasis by a haemostatic sealant or bipolar diathermy following ovarian cystectomy. The primary outcome was the ovarian reserve as assessed by antral follicle count (AFC) 1 year post-operatively. Secondary outcomes included the recurrence rate of ovarian endometrioma, the change in anti-Müllerian hormone (AMH) and FSH concentrations, and reproductive outcomes.

Ovarian HBV replication following ovulation induction in female hepatitis B carriers undergoing IVF treatment: A prospective observational study.

Hepatitis B virus (HBV) can be found in ovarian tissues. This study compared HBV DNA levels in follicular fluid collected during oocyte retrieval with paired serum samples in HBV carriers after ovarian stimulation during IVF treatment for infertility. Sixty-four HBV carrier women referred to the Assisted Reproductive Units of two Hong Kong hospitals were recruited.

A double-blinded, randomized placebo-controlled trial on the effect of traditional Chinese medicine formula Wuzi Yanzong pill on improving semen qualities in men with suboptimal parameters.

Background: In Hong Kong, one of six couples is affected by subfertility problems. Male infertility contributes to half of the infertility cases. In male infertility, there is no effective treatment for patients with idiopathic infertility/poor semen parameters.

Efficacy, feasibility and patient acceptability of ultrasound-guided manual vacuum aspiration for treating early pregnancy loss.

Background: Ultrasound-guided manual vacuum aspiration (USG-MVA) is an effective but underutilised alternative to medical or surgical evacuation of the uterus following first trimester miscarriage.

Aims: To evaluate the efficacy, feasibility and patient acceptability of USG-MVA for treating early pregnancy loss.

Material And Methods: We invited patients with early pregnancy losses to participate in this prospective cohort study.

The effect of endometrial scratch on natural-cycle cryopreserved embryo transfer outcomes: a randomized controlled study.

The benefit of endometrial scratch (ES) prior to embryo transfer is controversial. Systemic analysis has confirmed its potential benefit, especially in women with repeated IVF failures, yet most studies have focused on fresh embryo transfer, and its effect on vitrified-warmed embryo transfer (FET) cycles is yet to be explored. We hereby present our prospective, double-blind, randomized controlled study on the evaluation of the implantation and pregnancy rate after ES prior to natural-cycle FET.

A prospective randomized controlled trial of 3D versus 2D ultrasound-guided embryo transfer in women undergoing ART treatment.

Study Question: Does three-dimensional (3D) versus two-dimensional (2D) ultrasound (US) guidance during embryo transfer (ET) increase the ongoing pregnancy rate in women undergoing ART treatment.

Summary Answer: There is no significant difference in the ongoing pregnancy rate of women undergoing 3D versus 2D US-guided ET.

What Is Known Already: Studies have suggested that 3D US may confer additional benefits compared with 2D US during ET, although this has not been tested within the context of an RCT.