Kiyotaka Kawai
ORCID: 0000-0001-5009-3207
· 7 papers in corpus
observational
INTRODUCTION: We examined whether endometrial quantitative polymerase chain reaction (qPCR) detection of DNA from prespecified pathogen targets classically implicated in chronic endometritis (CE), from other reproductive-tract bacterial tar…
observational
2026
Background/Objectives: This study aimed to describe cumulative reproductive outcomes across three embryo transfer (ET) cycles after hysteroscopic endometrial polypectomy using a hysteroscopic tissue removal system (HTRS) and to identify det…
case-report
2026
BACKGROUND: Diffuse uterine leiomyomatosis (DUL) is a rare condition characterized by innumerable leiomyomas (fibroids) diffusely replacing the myometrium, often leading to severe infertility due to distortion of the uterine cavity. Althoug…
observational
2024
Background/Objectives: Hysterosalpingography (HSG) is pivotal in delineating tubal pathology, but is associated with pain and exposure to ionizing radiation. This study investigated which reproductive factors predict HSG-identified tubal pa…
observational
2023
Several studies have reported that vitamin D may modify human reproductive functions; however, the results are conflicting. We aimed to comprehensively evaluate serum vitamin D levels and examine the relationship between serum vitamin D lev…
case-report
2023
About 60% of cases of recurrent pregnancy loss have unexplained etiology. Immunotherapy for unexplained recurrent pregnancy loss is still unestablished. A 36-year-old woman, not obese, had a stillbirth at 22 gestational weeks and a spontane…
case-report
2022
Endometrial receptivity array (ERA)—an objective tool used in assisted reproductive technology—is used for personalized embryo transfer in in vitro fertilization. Hydrosalpinx affects implantation through various mechanisms. However, its ef…