Yichun Guan

No ORCID on file · 10 papers in corpus · active 2018-2025

Study types

  • preprint 2
  • article 1
  • case-report 1
  • rct 1

Condition tags

  • endometriosis 3
  • infertility 2
  • endometrioma 2
  • adenomyosis 1
2025
Comparative analysis of cumulative live birth rates in patients with recurrent pregnancy loss undergoing preimplantation genetic testing for aneuploidy versus conventional in vitro fertilisation/intracytoplasmic sperm injection: a retrospective study.
Journal of ovarian research ·doi:10.1186/s13048-025-01721-3

BackgroundRecurrent pregnancy loss (RPL) affects 1-2% of women worldwide and poses diagnostic and therapeutic challenges due to its multifactorial causes. Preimplantation genetic testing for aneuploidy (PGT-A) aims to improve outcomes by se…

2025
Zishen Yutai Pill increased live births in advanced maternal age women: a randomized clinical trial.
Nature communications ·doi:10.1038/s41467-025-67714-4

Advanced maternal age (AMA, ≥35 years) women undergoing assisted reproductive technology (ART) face reduced live birth rates (LBR) and remain a major clinical challenge. In a large randomized trial, Zishen Yutai Pill (ZYP) improved LBR in t…

2024
Effect of single blastocyst-stage versus single cleavage-stage embryo transfer on cumulative live births in women with good prognosis undergoing in vitro fertilization: Multicenter Randomized Controlled Trial.
Nature communications ·doi:10.1038/s41467-024-52008-y

In this multicenter, non-inferiority, randomized trial, we randomly assigned 992 women undergoing in-vitro fertilization (IVF) with a good prognosis (aged 20-40, ≥3 transferrable cleavage-stage embryos) to strategies of blastocyst-stage (n …

preprint 2023
Analysis of cumulative live birth rate outcomes of three controlled ovarian hyperstimulation protocols in patients with diminished ovarian reserve following laparoscopic cystectomy of ovarial endometrioma: A retrospective cohort study
·doi:10.21203/rs.3.rs-3124568/v1

Abstract Background: To compare the assisted reproductive outcomes of gonadotropin (Gn)-releasing hormone (GnRH) antagonist, microstimulation, and progestin-primed ovarian stimulation (PPOS) protocols in patients with diminished ovarian res…

article 2023
Analysis of cumulative live birth rate outcomes of three ovarian stimulation protocols in patients after laparoscopic cystectomy of ovarial endometrioma: a retrospective cohort study
Reproductive health ·doi:10.1186/s12978-023-01671-3

BACKGROUND: Previous studies have reported that after laparoscopic cystectomy of ovarial endometrioma, the ovarian response to gonadotropin (Gn) significantly decreased. However, for patients with diminished ovarian reserve (DOR) after ovar…

2023
Prednisone vs Placebo and Live Birth in Patients With Recurrent Implantation Failure Undergoing In Vitro Fertilization: A Randomized Clinical Trial.
JAMA ·doi:10.1001/jama.2023.5302

ImportanceImplantation failure remains a critical barrier to in vitro fertilization. Prednisone, as an immune-regulatory agent, is widely used to improve the probability of implantation and pregnancy, although the evidence for efficacy is i…

case-report 2023
Transabdominal and transvaginal egg retrieval guided by a vaginal ultrasound probe in an adenomyosis patient: a case report
Current medical research and opinion ·doi:10.1080/03007995.2023.2192609

OBJECTIVE: To explore a non-routine method of oocyte retrieval in patients with difficulty in obtaining oocytes via the vagina during a cycle of in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI)-embryo transfer (ET). MET…

preprint 2022
Analysis of the relationship of the serum vitamin D level with infertility and associated factors
·doi:10.21203/rs.3.rs-1702948/v1

Abstract Objective: The aims of this study were to study the distribution of the serum VD levels among infertile people and to analyze the relationships between VD levels and the basic conditions of infertile patients, as well as laboratory…

2019
Neonatal outcomes of singleton live births with vanishing twin syndrome following double embryos transfer in assisted reproductive technology: a retrospective cohort study.
Journal of ovarian research ·doi:10.1186/s13048-019-0539-8

BackgroundWomen with vanishing twin syndrome are associated with increased risks of adverse neonatal outcomes, such as preterm birth (PTB) and low birthweight (LBW), compared with those in singleton live births following single embryo trans…

rct 2018
A multi-center, randomized controlled clinical trial of the application of a shortened protocol of long-acting Triptorelin down-regulated prior to IVF/ICSI among patients with endometriosis: A protocol
Reproductive health ·doi:10.1186/s12978-018-0639-8

BACKGROUND: Endometriosis is the major cause of progressive pelvic pain and subfertility. Up to 50% of reproductive-age women suffer from pelvic pain. Endometriosis is a classic indication for IVF. Compared with women whose inability to pro…