1.Clinical significance of soft markers in second trimester ultrasonography for pregnant Korean women: a multicenter study and literature review
Hyun Sun KO ; Dong Wook KWAK ; Soo-young OH ; Sae Kyung CHOI ; Joon Seok HONG ; Han Sung HWANG ; Hyun Soo PARK ; Hyun-Joo SEOL ; Moon Young KIM ; Sa Jin KIM ; Joong Shin PARK
Obstetrics & Gynecology Science 2022;65(2):145-155
Objective:
To evaluate the clinical significance of soft markers for aneuploidy screening in Korean women.
Methods:
We retrospectively reviewed the medical records of 5,428 singleton pregnant women who underwent sonography during the second trimester at seven institutions in South Korea. We evaluated the prevalence of the following soft markers: intracardiac echogenic focus, choroid plexus cysts, pyelectasis, echogenic bowel, and mild ventriculomegaly. We developed best-fitted regression equations for the fetal femur and humerus length using our data and defined a short femur and humerus as both long bones below the fifth centile. The results of genetic testing and postnatal outcomes were investigated in patients who had been diagnosed with aforementioned soft markers.
Results:
The median maternal age of our study population was 33 years, and the median gestational age at the time of ultrasonographic examination was 21 weeks. We detected soft markers in 10.0% (n=540) of fetuses: 9.3% (n=504) were isolated cases and 0.7% (n=36) of cases had two or more markers. We identified only two aneuploides (trisomy 18, 46,XX,t[8;10][q22.1;p13]), of which one was clinically significant. We presented the neonatal outcomes of the fetuses with the respective soft markers. Preterm delivery, low birth weight, and small-for-gestational-age (SGA) were significantly more common in women with a shortened fetal femur (P<0.001, all). However, the presence of a shortened fetal humerus was not associated with those outcomes excluding SGA.
Conclusion
Soft markers in second-trimester ultrasonography have limited use in screening for fetal aneuploidy in Korean women. However, these markers can be used as a screening tool for adverse outcomes other than chromosomal abnormality.
2.Addition of Cervical Elastography May Increase Preterm Delivery Prediction Performance in Pregnant Women with Short Cervix: a Prospective Study
Hyun Soo PARK ; Hayan KWON ; Dong Wook KWAK ; Moon Young KIM ; Hyun Joo SEOL ; Joon Seok HONG ; Jae Yoon SHIM ; Sae Kyung CHOI ; Han Sung HWANG ; Min Jeong OH ; Geum Joon CHO ; Kunwoo KIM ; Soo young OH ;
Journal of Korean Medical Science 2019;34(9):e68-
BACKGROUND: We investigated whether there is a difference in elastographic parameters between pregnancies with and without spontaneous preterm delivery (sPTD) in women with a short cervix (≤ 25 mm), and examined the ability of elastographic parameters to predict sPTD in those women. METHODS: E-CervixTM (WS80A; Samsung Medison, Seoul, Korea) elastography was used to examine the cervical strain. Elastographic parameters were compared between pregnancies with and without sPTD. Diagnostic performance of elastographic parameters to predict sPTD ≤ 37 weeks, both alone and in combination with other parameters, was compared with that of cervical length (CL) using area under receiver operating characteristic curve (AUC) analysis. RESULTS: A total of 130 women were included. Median gestational age (GA) at examination was 24.4 weeks (interquartile range, 21.4–28.9), and the prevalence of sPTD was 20.0% (26/130). Both the elastographic parameters and CL did not show statistical difference between those with and without sPTD. However, when only patients with CL ≥ 1.5 cm (n = 110) were included in the analysis, there was a significant difference between two groups in elasticity contrast index (ECI) within 0.5/1.0/1.5 cm from the cervical canal (P < 0.05) which is one of elastographic parameters generated by E-Cervix. When AUC analysis was performed in women with CL ≥ 1.5 cm, the combination of parameters (CL + pre-pregnancy body mass index + GA at exam + ECI within 0.5/1.0/1.5 cm) showed a significantly higher AUC than CL alone (P < 0.05). CONCLUSION: An addition of cervical elastography may improve the ability to predict sPTD in women with a short CL between 1.5 and 2.5 cm.
Area Under Curve
;
Body Mass Index
;
Cervix Uteri
;
Elasticity
;
Elasticity Imaging Techniques
;
Female
;
Gestational Age
;
Humans
;
Pregnancy
;
Pregnant Women
;
Prevalence
;
Prospective Studies
;
ROC Curve
;
Seoul
;
Ultrasonography
3.Practice patterns in the management of threatened preterm labor in Korea: A multicenter retrospective study.
Han Sung HWANG ; Sung Hun NA ; Sung Eun HUR ; Soon Ae LEE ; Kyung A LEE ; Geum Joon CHO ; Kwan Young OH ; Chan Hee JIN ; Seung Mi LEE ; Jae Eun SHIN ; Kyo Hoon PARK ; Ji Young LIM ; Suk Joo CHOI ; Joon Ho LEE ; Sae Kyung CHOI ; Jae Yoon SHIM ; Yun Sung JO ; Gyu Yeon CHOI ; Young Han KIM ; Ki Cheol KIL ; Jong Woon KIM ; Dong Wook KWAK ; Yun Dan KANG ; Young Ju KIM
Obstetrics & Gynecology Science 2015;58(3):203-209
OBJECTIVE: This study aimed to examine clinical practice patterns in the management of pregnant women admitted with threatened preterm labor (TPL) in Korea. METHODS: Data from women admitted with a diagnosis of TPL were collected from 22 hospitals. TPL was defined as regular uterine contractions with or without other symptoms such as pelvic pressure, backache, increased vaginal discharge, menstrual-like cramps, bleeding/show and cervical changes. Data on general patient information, clinical characteristics at admission, use of tocolytics, antibiotics, and corticosteroids, and pregnancy outcomes were collected using an online data collections system. RESULTS: A total of 947 women with TPL were enrolled. First-line tocolysis was administered to 822 (86.8%) patients. As a first-line tocolysis, beta-agonists were used most frequently (510/822, 62.0%), followed by magnesium sulfate (183/822, 22.3%), calcium channel blockers (91/822, 11.1%), and atosiban (38/822, 4.6%). Of the 822 women with first-line tocolysis, second-line tocolysis were required in 364 (44.3%). Of 364 with second-line, 199 had third-line tocolysis (37.4%). Antibiotics were administered to 29.9% of patients (284/947) with single (215, 22.7%), dual (26, 2.7%), and triple combinations (43, 4.5%). Corticosteroids were administered to 420 (44.4%) patients. Betamethasone was administered to 298 patients (71.0%), and dexamethasone was administered to 122 patients (29.0%). CONCLUSION: Practice patterns in the management of TPL in Korea were quite various. It is needed to develop standardized practice guidelines for TPL management.
Adrenal Cortex Hormones
;
Anti-Bacterial Agents
;
Back Pain
;
Betamethasone
;
Calcium Channel Blockers
;
Dexamethasone
;
Diagnosis
;
Female
;
Humans
;
Korea
;
Magnesium Sulfate
;
Muscle Cramp
;
Obstetric Labor, Premature*
;
Physician's Practice Patterns
;
Pregnancy
;
Pregnancy Outcome
;
Pregnant Women
;
Premature Birth
;
Retrospective Studies*
;
Tocolysis
;
Tocolytic Agents
;
Uterine Contraction
;
Vaginal Discharge
4.Inhibitory effects of Doenjang, Korean traditional fermented soybean paste, on oxidative stress and inflammation in adipose tissue of mice fed a high-fat diet.
Ye Rim NAM ; Sae Bom WON ; Young Shin CHUNG ; Chung Shil KWAK ; Young Hye KWON
Nutrition Research and Practice 2015;9(3):235-241
BACKGROUND/OBJECTIVES: Doenjang, Korean traditional fermented soybean paste has been reported to have an anti-obesity effect. Because adipose tissue is considered a major source of inflammatory signals, we investigated the protective effects of Doenjang and steamed soybean on oxidative stress and inflammation in adipose tissue of diet-induced obese mice. MATERIALS/METHODS: Male C57BL/6J mice were fed a low fat diet (LF), a high-fat diet (HF), or a high-fat containing Doenjang diet (DJ) or a high-fat containing steamed soybean diet (SS) for 11 weeks. RESULTS: Mice fed a DJ diet showed significantly lower body and adipose tissue weights than those in the HF group. Although no significant differences in adipocyte size and number were observed among the HF diet-fed groups, consumption of Doenjang alleviated the incidence of crown-like structures in adipose tissue. Consistently, we observed significantly reduced mRNA levels of oxidative stress markers (heme oxygenase-1 and p40phox), pro-inflammatory adipokines (tumor necrosis factor alpha and macrophage chemoattractant protein-1), macrophage markers (CD68 and CD11c), and a fibrosis marker (transforming growth factor beta 1) by Doenjang consumption. Gene expression of anti-inflammatory adipokine, adiponectin was significantly induced in the DJ group and the SS group compared to the HF group. The anti-oxidative stress and anti-inflammatory effects observed in mice fed an SS diet were not as effective as those in mice fed a DJ diet, suggesting that the bioactive compounds produced during fermentation and aging may be involved in the observed health-beneficial effects of Doenjang. CONCLUSIONS: Doenjang alleviated oxidative stress and restored the dysregulated expression of adipokine genes caused by excess adiposity. Therefore, Doenjang may ameliorate systemic inflammation and oxidative stress in obesity via inhibition of inflammatory signals of adipose tissue.
Adipocytes
;
Adipokines
;
Adiponectin
;
Adipose Tissue*
;
Adiposity
;
Aging
;
Animals
;
Diet
;
Diet, High-Fat*
;
Fermentation
;
Fibrosis
;
Gene Expression
;
Humans
;
Incidence
;
Inflammation*
;
Macrophages
;
Male
;
Mice*
;
Mice, Obese
;
Necrosis
;
Obesity
;
Oxidative Stress*
;
RNA, Messenger
;
Soybeans*
;
Steam
;
Weights and Measures
5.Glufosinate Herbicide Intoxication Causing Unconsciousness, Convulsion, and 6th Cranial Nerve Palsy.
Jae Seok PARK ; Soo Jung KWAK ; Hyo Wook GIL ; So Young KIM ; Sae Yong HONG
Journal of Korean Medical Science 2013;28(11):1687-1689
Although glufosinate ammonium herbicides are considered safe when used properly, ingestion of the undiluted form can cause grave outcomes. Recently, we treated a 34-yr-old man who ingested glufosinate ammonium herbicide. In the course of treatment, the patient developed apnea, mental deterioration, and sixth cranial nerve palsy; he has since been discharged with full recovery after intensive care. This case report describes the clinical features of glufosinate intoxication with a focus on sixth cranial nerve palsy. Our observation suggests that neurologic manifestations after ingestion of a "low-grade toxicity herbicide" are variable and more complex than that was previously considered.
Abducens Nerve Diseases/*chemically induced/drug therapy
;
Adult
;
Aminobutyrates/*poisoning
;
Enzyme Inhibitors/poisoning
;
Herbicides/*poisoning
;
Humans
;
Male
;
Seizures/chemically induced
;
Surface-Active Agents/poisoning
;
Unconsciousness/chemically induced
6.Breakage of Reamer during Tibia Intramedullary Nailing: A Case Report.
Ho Yoon KWAK ; Jin Su KIM ; Ki Won YOUNG ; Joo Won JOH ; Sae Min HWANG
Journal of the Korean Fracture Society 2013;26(4):333-337
The reamer crack, followed by breakage at its distal part occurred during intramedullary nailing of tibial shaft fracture. The broken reamer was trapped in the intramedullary canal, making it very difficult to pull out. We successfully extracted the broken reamer by retrograde impaction through the fracture site and completed intramedullary nailing procedure. Thus, we present this case with a review of the literature.
Fracture Fixation, Intramedullary
;
Tibia*
7.The comparison of beta-hCG levels according to treatment modalities in tubal pregnancy.
Ji Sun WE ; Se Hyoun KWAK ; Youn Jee CHUNG ; Sae Kyung CHOI ; Jeong Soo CHOI ; Hyun Young AHN ; In Yang PARK ; Jong Chul SHIN
Korean Journal of Perinatology 2008;19(2):150-158
OBJECTIVE: The aims of this study were to evaluate the effect of the methotrexate (MTX) method by comparing the change of the serum beta-hCG level between the MTX method and salpingectomy for treating tubal pregnancy, furthermore by analyzing differences between the MTX success group and the failure group, and to provide helps in establishing criteria for choosing the MTX method. METHODS: Medical records of the 118 patients who were diagnosed with tubal pregnancy were reviewed retrospectively for the period of January 2006 to December 2007 at Kangnam St. Marys Hospital. RESULTS: Between the MTX success group and the failure group, no difference was observed in pregnancy duration, but statistically significant differences were observed in the size of hematoma and the quantity of hemoperitoneum at the site of tubal pregnancy in ultrasonography and in the serum beta-hCG level (p<0.05). Compared with salpingectomy, the MTX method showed the patterns of a low decrease rate of serum beta-hCG level after treatment and even its increase during the early period of treatment, but the serum beta-hCG level decreased rapidly from Day 7 after treatment and became equal to that of salpingectomy on Day 28 after treatment. CONCLUSION: The size of hematoma and the quantity of hemoperitoneum at the site of tubal pregnancy and the serum beta-hCG level before treatment are important factors for success in the MTX method. The MTX method may be safe and effective relatively in hemodynamically stable tubal pregnancy patients, who need preserve the salpinx particularly.
Fallopian Tubes
;
Female
;
Hematoma
;
Hemoperitoneum
;
Humans
;
Medical Records
;
Methotrexate
;
Pregnancy
;
Pregnancy, Tubal
;
Retrospective Studies
;
Salpingectomy
8.Aortic Root Remodeling Procedure in Marfan Syndrome associated with Aortic Dissection: Yacoub-David Technique.
Hyung Joo PARK ; Seong Jin LEE ; Young Woo PARK ; Tai Myung CHOI ; Won Yong SHIN ; Soo Dal KWAK ; Jeong Kwan KO ; Cheol Sae LEE ; Wook YOUM
The Korean Journal of Thoracic and Cardiovascular Surgery 2001;34(7):556-560
We operated on a Marfan patient who had Stanford type A acute aortic dissection, aortic root aneurysm, and aortic regurgitation. The Yacoub-David aortic root remodeling procedure which preserves native aortic valve and replaces all three aortic sinuses and ascending aorta by a Dacron graft, was applied for this patient. A 24mm Hemashield graft was designed to three tongues at the aortic root end to meet the shape of the Valsalva sinuses. The patient recovered from the procedure uneventfully and there was no aortic regurgitation postoperatively.
Aneurysm
;
Aorta
;
Aortic Valve
;
Aortic Valve Insufficiency
;
Humans
;
Marfan Syndrome*
;
Polyethylene Terephthalates
;
Sinus of Valsalva
;
Tongue
;
Transplants
10.Spontaneous passage of ureteral stone by conservative treatment.
Seung Min KWAK ; Young Tae MOON ; Sae Chul KIM
Korean Journal of Urology 1993;34(2):308-312
One hundred patients who have a urethral stone lesser than 1.0cm in diameter were evaluated for spontaneous passage during 8 months between July, 1991 and February, 1992. The spontaneous, passage in accordance with duration of follow-up, the stone site, size, shape and degree of urethra obstruction was investigated. The overall rate of spontaneous passage was 56.0 % with the duration or 39.3 days ranging from 2 days to 8 months. Among these 56 patients, 48(85.7% ) obtained a spontaneous passage within 8 weeks. The rate and duration of spontaneous passage according to stone site were 57.7%, 67.4 days in upper ureter, 25.0%, 64.0 days in mid ureter and 57.1%. 21.9 days in lower ureter, respectively. Spontaneous passage rate was insignificantly correlated with the increment of stone size, but the duration requiring for spontaneous passage of lower ureteral stone was shorter than those of upper or mid ureteral stones. For stone shape the smooth surface or cylindrical shaped stone was more easily passed out spontaneously than the irregular or round shaped one. And, the severer ureteral obstruction, the poorer spontaneous passage was observed. Therefore, the ureteral stone which is smaller than 1.0cm in diameter could be expected a spontaneous passage for 8 weeks at least unless there are specific symptoms or impairment of renal function, especially when the stone has smooth-cylindrical shape and the ureter shows minimal obstruction.
Follow-Up Studies
;
Humans
;
Ureter*
;
Ureteral Obstruction
;
Urethra

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