Chih‐Feng Yen

ORCID: 0000-0002-5419-2605 · 30 papers in corpus
article 2025
Gynecology and Minimally Invasive Therapy ·doi:10.4103/gmit.gmit-d-24-00055

OBJECTIVES: To establish the expert opinions and consensus recommendations from the Taiwanese Endometriosis Society on managing adenomyosis. MATERIALS AND METHODS: This study employed a two-round modified Delphi method incorporating a nati…

other 2024
F&S science ·doi:10.1016/j.xfss.2023.11.003

OBJECTIVE: To study the effect of adenomyosis on the localized expression of the GATA binding proteins 2 and 6 (GATA2 and GATA6) zinc-finger transcription factors that are involved in proliferation of hematopoietic and endocrine cell lineag…

editorial 2024
Taiwanese journal of obstetrics & gynecology ·doi:10.1016/j.tjog.2024.07.015

Dienogest has been proven effective as long-term therapeutic option for pelvic pain caused by endometriosis. However, in Taiwan, there is a lack of a well-tailored consensus on its long-term administration. To address this gap, Taiwanese ex…

review 2023
International Journal of Gynecology & Obstetrics ·doi:10.1002/ijgo.15142

Endometriosis should be diagnosed as early as possible in the continuum of care; but substantial delays of approximately 6-8 years between symptom onset and endometriosis diagnosis have been widely reported. With the purpose of improving th…

article 2023
·doi:10.1016/j.fertnstert.2023.08.489
article 2023
·doi:10.4103/gmit.gmit_70_23

A 31-year-old, nulligravid female with painful menorrhagia received a sonographic examination that displayed a 3.3 cm × 2.7 cm solid mass on her uterus [Figure 1]. Subsequent laparoscopic surgery revealed a well-circumscribed mass, which re…

review 2022
Healthcare (Basel, Switzerland) ·doi:10.3390/healthcare10122515

This work provides consensus guidance regarding clinical diagnosis and early medical management of endometriosis within Asia. Clinicians with expertise in endometriosis critically evaluated available evidence on clinical diagnosis and early…

article 2022
·doi:10.1016/j.fertnstert.2022.08.581
article 2020
·doi:10.1016/j.fertnstert.2020.05.042

ObjectiveTo demonstrate laparoscopic surgery for a patient with unicornuate uterus and a large hematometra in the noncommunicating uterine horn.DesignNarrated video featuring the diagnostic tests and surgical management.SettingAcademic tert…

case-report 2020
Fertility and sterility ·doi:10.1016/j.fertnstert.2020.07.032

OBJECTIVE: To demonstrate an innovative idea for a four-petal method for performing laparoscopic adenomyomectomy on a patient with focal-type adenomyosis. DESIGN: A step-by-step explanation of the technique with narrated video footage. SE…

review 2019
Gynecology and Minimally Invasive Therapy ·doi:10.4103/gmit.gmit_83_18

AIM: With a perplexing pathogenesis and an incidence rate of approximately 10% among women of reproductive age, endometriosis affects more women in Asia than in any other continent in the world. This paper reviews the available data on the …

article 2019
·doi:10.1016/j.fertnstert.2019.07.956
article 2018
article 2018
Taiwanese journal of obstetrics & gynecology ·doi:10.1016/j.tjog.2018.03.001

OBJECTIVE: We have recently reported that stress-induced phosphoprotein 1 (STIP1) is over-expressed in endometriosis/adenomyosis tissues. STIP1 may also be involved in immune regulation, thus we attempted to study the association between ST…

article 2018
PloS one ·doi:10.1371/journal.pone.0190573

Stress-induced phosphoprotein-1 (STIP1), an adaptor protein that coordinates the functions of HSP70 and HSP90 in protein folding, has been implicated in the development of human gynecologic malignancies. This case-control study investigates…

review 2017
Reproductive sciences (Thousand Oaks, Calif.) ·doi:10.1177/1933719117691141

Adenomyosis, which manifests with focally or diffusely scattered endometrial tissue within the uterine myometrium, is an endometriosis-like disease with controversial pathogenesis and compromised reproductive outcomes. This review, includin…

other 2017
Gynecology and Minimally Invasive Therapy ·doi:10.1016/j.gmit.2017.02.005

STUDY OBJECTIVE: To introduce the innovative surgical procedure of treating benign uterine pathology with subtotal hysterectomy by natural orifice transluminal endoscopic surgery (NOTES). DESIGN: Prospective observational study. SETTING: …

article 2016
Reproductive sciences (Thousand Oaks, Calif.) ·doi:10.1177/1933719116681515

BackgroundAdenomyosis was found to have negative impacts on embryo implantation. Leukemia inhibitory factor (LIF), proposed to be a molecular marker for endometrial receptivity, works through the LIF receptor (LIFR) on both the embryo and t…

article 2016
Reproductive sciences (Thousand Oaks, Calif.) ·doi:10.1177/1933719116657192

ObjectiveAdenomyosis is a uterine disorder characterized by dysmenorrhea, dyspareunia, abnormal uterine bleeding, and infertility. Pathogenesis indicates that endometrial cells invade and proliferate within myometrium, and inflammatory medi…

article 2015
Fertility and sterility ·doi:10.1016/j.fertnstert.2015.05.032

ObjectiveTo evaluate the expression pattern of activins and related growth factor messenger RNA (mRNA) levels in adenomyotic nodules and in their endometrium.DesignProspective study.SettingUniversity hospital.Patient(s)Symptomatic premenopa…

article 2015
Taiwanese journal of obstetrics & gynecology ·doi:10.1016/j.tjog.2015.08.023

OBJECTIVE: To describe the surgical procedures of robot-assisted natural orifice transluminal endoscopic surgery (NOTES) for hysterectomy and to evaluate its feasibility. MATERIALS AND METHODS: From December 2014 to February 2015, four pati…

article 2012
PloS one ·doi:10.1371/journal.pone.0047374

Endometriosis is determined by genetic factors, and the prevalence of genetic polymorphisms varies greatly depending on the ethnic group studied. The objective of this study was to investigate the relationship between single nucleotide poly…

2012
Taiwanese journal of obstetrics & gynecology ·doi:10.1016/j.tjog.2012.04.009

ObjectiveTo evaluate the feasibility and safety of performing a hysterectomy using the transvaginal natural orifice transluminal endoscopic surgery (NOTES).Materials and methodsFrom May through December 2010, 16 patients with benign uterine…

other 2012
Journal of Minimally Invasive Gynecology ·doi:10.1016/j.jmig.2011.09.011

STUDY OBJECTIVE: To review the feasibility of laparoscopic repair in cases of ureteral injuries occurring during gynecologic laparoscopy. DESIGN: Retrospective study (Canadian Task Force classification II-3). SETTING: Institution-specific…

article 2012
·doi:10.1016/j.gmit.2012.08.008

The purpose of this article is to describe a new minimally invasive technique for an extremely large ovarian tumor. From July 2010 to June 2011, three patients with large pelvic cystic tumor which extended up to or beyond the level of the u…