Yi-hong Guo

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We analyzed the incidence of ectopic pregnancy in frozen-thawed embryo transfer (FET) as a function of natural and hormone replacement cycles and ectopic pregnancy-related factors. In this study, there were 4,034 FET cycles performed in our center between January 2005 and December 2010, and the rates of ectopic pregnancy were compared between natural and(More)
OBJECTIVE To explore the effects of progesterone (P) elevation on pregnancy outcomes of day 3 embryo and day 5 blastocyst transfer. METHODS Clinical outcomes (pregnancy and ectopic pregnancy rates) following day 3 embryo and day 5 blastocyst transfer cycles were retrospectively analysed. Day 3 embryo and day 5 blastocyst transfer cycles were divided into(More)
OBJECTIVE To investigate ectopic pregnancy from embryo transfer (ET)of in-vitro fertilization (IVF) cycle and intracytoplasmic sperm injection (ICSI) cycle and frozen-thawed (FET) cycle. METHODS From Jan.2005 to Dec. 2010, a total of 9037 IVF-ET or ICSI-ET cycles and 4034 FET cycles were performed in our reproductive medicine center, Affiliated First(More)
OBJECTIVE To explore the effective isolation method for preantral follicles from human frozen-thawed ovarian tissue. METHODS The ovarian cortical tissue was frozen by direct cover vitrification (DCV). The frozen-thawed ovarian tissue was used for isolation of preantral follicles with collagenase combined with mechanical method and mechanical method alone,(More)
We observed the effect of body mass index (BMI) on pregnancy outcomes in Chinese patients undergoing assisted reproductive treatment (ART). All the patients were divided into polycystic ovary syndrome (PCOS) group and non-PCOS group, and then according to BMI, each group was subdivided into 6 subgroups: group 1 (BMI < 18 kg/m2), group 2 (18-20 kg/m2), group(More)
BACKGROUND To evaluate the safety of intracytoplasmic sperm injection (ICSI) with epididymal or testicular sperm, this study compared children born after ICSI treatment with epididymal or testicular sperm with children conceived after ICSI with ejaculated sperm. METHODS This retrospective study included 317 children born after ICSI with percutaneous(More)
We explored the application of single nucleotide polymorphism microarray (SNP array) in molecular karyotype analysis for early spontaneous abortion detection in assisted reproductive technology (ART). SNP array was performed in 81 cases. Of the 81 cases, 16 experienced natural conception (NC) and 65 were pregnant by ART. Of the 65 cases, 4 underwent(More)
BACKGROUND Fluorescence in situ hybridization (FISH) is an irreplaceable method in pre-implantation genetic diagnosis. We explored the effects of a modified single cell fixation method on the cell-nuclear area and FISH signal. METHODS From January 2006 to March 2008, the blastomeres with marked nuclei from D3 embryos were selected. Cells were fixed with(More)
OBJECTIVE To observe the clinical efficacy of acupuncture combined with massage on infiltrative exophthalmos so as to provide a more effective treatment for infiltrative exophthalmos in hyperthyroidism. METHODS Forty-five cases of infiltrative exophthalmos were randomly divided into an acupuncture massage group (25 cases) and a western medicine group (20(More)
OBJECTIVE It has been shown that angiotensin converting enzyme inhibitors (ACEI) can reduce the ratio of pulmonary and systemic circulation blood flow (Qp/Qs) and thus decrease the blood flow of left-to-right shunt in children with left-to-right shunt congenital cardiac lesions. This suggests that there are differences in the expression of Angiotensin II(More)