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Dive into the research topics where Ki-Young Ryu is active.

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Featured researches published by Ki-Young Ryu.


Journal of Korean Medical Science | 2005

Spontaneous uterine rupture in the first trimester: a case report.

Young-Joon Park; Ki-Young Ryu; Jong-In Lee; Moon-Il Park

Uterine rupture is one of the most feared obstetric complications affecting the pregnant woman and fetus. Most of the cases have various risk factors and mainly occur during the second or third trimester. However, spontaneous uterine rupture during the first trimester is extremely rare. We experienced a case of spontaneous uterine rupture in a 36-yr-old multiparous woman without definite risk factors. The initial impression was a hemoperitoneum of an unknown origin with normal early pregnancy. Intensive surgical method would be needed for accurate diagnosis and immediate management in bad situation by hemoperitoneum even though a patient was early pregnancy.


Early Human Development | 2013

Comparison of fetal heart rate patterns using nonlinear dynamics in breech versus cephalic presentation at term

Young-Sun Park; Ki-Young Ryu; Soon-Sup Shim; Jeong-Kyu Hoh; Moon-Il Park

BACKGROUND It has been reported that breech fetuses have inferior neurological outcomes regardless of mode of delivery, raising the possibility that in utero neurological impairment is more frequent in breech fetuses, possibly contributing to malpresentation. AIMS To assess differences between the cardiovascular autonomic nervous systems (ANSs) of breech and cephalic fetuses using nonlinear dynamic indices of fetal heart rate (FHR) variability. STUDY DESIGN AND SUBJECTS This study included 86 fetuses with breech presentation and 173 fetuses with cephalic presentation, with no other maternal or fetal problems. We analyzed FHR variability and spectral indices as markers of ANS behavior. We used nonlinear dynamic indices to represent the complexity of heart rate regulation, as well as correlation dimension as a chaotic index of the cardiovascular control system. RESULTS One of FHR parameters (Mean minute range) was significantly lower in breech than cephalic fetuses (p=0.0294). However, there were no other significant differences in any linear or nonlinear indices, nor in clinical outcomes, between breech and cephalic fetuses. CONCLUSION Our data suggest that breech fetuses have neither more active ANS nor less active complexity control systems than do cephalic fetuses. This indicates that the neurologic maturation of breech fetuses is not inferior to cephalic ones. The practical implication of these findings is that the nervous system integrity of breech fetuses may not result directly in neonatal complications.


Journal of Obstetrics and Gynaecology Research | 2013

Expression of endothelial nitric oxide synthase in the uterus of patients with leiomyoma or adenomyosis

Na-Jung Oh; Ki-Young Ryu; Cha-Nam Jung; Sang Yeop Yi; Se-Ryun Kim

Aim:  To confirm the difference in the expression of endothelial nitric oxide synthase in the normal endometrium and myometrium of women who have leiomyoma or adenomyosis compared with controls, and its correlation with the pathogenesis of menorrhagia or dysmenorrhea in patients with uterine leiomyoma.


Korean Journal of Obstetrics & Gynecology | 2011

The analysis of factors which affect resection margin status after conization for cervical intraepithelial neoplasia

Cha Nam Jung; Na Jung Oh; Ki-Young Ryu; Hwa Eun Oh; Woo Young Kim

Methods We retrospectively reviewed the medical and histopathological records of 202 patients who underwent conization that revealed cervical intraepithelial neoplasia (CIN) at Myongji Hospital, Kwandong University College of Medicine between November 2003 and February 2011. Patients were followed up every three to six months with cervicovaginal smears, and suspected cases of recurrence were subjected to colposcopy and biopsy.


Ultrasound in Obstetrics & Gynecology | 2008

P40.07: Case of ovarian leiomyoma causing torsion: Conversion to laparotomy during laparoscopic operation

Young-Joon Park; Sung-Whan Kim; Ki-Young Ryu; Jae-Wook Kim

88.7%, 86.8% and 92.5% for CD, PD and e-flow, respectively. Negative and positive predictive values for e-flow estimation were 97.4% and 78.6%, respectively. Prognostic values of analyzed methods in our group of patients based on the area under ROC was: 0.940, 0.945 and 0.960 respectively. Conclusion: E-flow technology applied in ultrasonographic Doppler index is useful to make a prognosis of ovarian tumor malignancy.


Journal of Gynecologic Oncology | 2004

The Influence of Angiogeneic Gene Expression Following Management with Antineoplastic Agents to the Apoptosis of Malignant Tumor Cell

Young-Jae Kim; Yoon-Young Lee; Young-Me Lee; Sung-Yeoul Chang; Seung-Ryong Kim; Kyung-Tai Kim; Youn-Yeung Hwang; Sam-Hyun Cho; Ki-Young Ryu


Ultrasound in Obstetrics & Gynecology | 2011

P12.15: Maternal effects on fetal heart rate parameters in patients with antepartum bleeding

Ki-Young Ryu; Jeong-Kyu Hoh; Moon-Il Park


Infection and Chemotherapy | 2009

An Unusual Case of Tubo-ovarian Abscess by Gemella morbillorum

Hyoungsun Jang; Se-Ryun Kim; Ki-Young Ryu; Kkot Sil Lee; Jae-Wook Kim; Jong-Wook Kim


Obstetrics & gynecology science | 2007

Relationship between spontaneous preterm birth and polymorphisms of Interleukin-1

Se-Ryun Kim; Young-Jun Park; Ki-Young Ryu; Jong-Wook Kim; Eun-Seob Song; Byung-Ick Lee


Obstetrics & gynecology science | 2007

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Hyoung-Jin Sou; Se-Ryun Kim; Young-Jun Park; Hyoungsun Jang; Jong-Wook Kim; Soon-Young Song; Ki-Young Ryu

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Byung-Ick Lee

Hankuk University of Foreign Studies

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