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Effect of Cervical Cerclage on the Risk of Recurrent Preterm Birth after a Twin Spontaneous Preterm Birth

Kim S, Park HS, Kwon H, Seol HJ, Bae JG, Ahn KH, Na S, Lee SJ, Lee MY, Lee SM, Kwak DW, Park JY, Park IY, Won HS, Kim MY, Ko HS, Hwang HS, Korean Society of Ultrasound in Obstetrics and Gynecology Research Group

BACKGROUND: This study aimed to evaluate the effect of cervical cerclage on the recurrence risk for preterm birth in singleton pregnant women after a twin spontaneous preterm birth (sPTB). METHODS: This...
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Treatment of gestational diabetes diagnosed by the IADPSG criteria decreases excessive fetal growth

Lee KH, Han YJ, Chung JH, Kim MY, Ryu HM, Kim JH, Kwak DW, Kim SH, Yang S, Kim M

OBJECTIVE: We evaluated the effect on treatment using the new International Association of Diabetes and Pregnancy Study Group (IADPSG) criteria for gestational diabetes mellitus (GDM) diagnosis. METHODS: Singleton pregnant women whose...
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Prognostic factors in hepatocellular carcinoma patients with bone metastases

Kim S, Choi Y, Kwak DW, Lee HS, Hur WJ, Baek YH, Lee SW

PURPOSE: To identify the prognostic factors that could influence survival and to compare prognoses of the patients with the number of the risk factors that might assist in the adequate...
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Chromosomal Abnormalities in Korean Fetuses with Nuchal Translucency above the 99th Percentile

Kwak DW, Boo H, Chang EH, Ryu HM, Han YJ, Chung JH, Kim MY, Yang EJ, Yoo HJ, Kim JW

OBJECTIVE: To evaluate the prevalence and distribution of chromosomal defects in Korean fetuses with nuchal translucency (NT) above the 99th percentile and to analyze them according to the degree of...
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Addition of Cervical Elastography May Increase Preterm Delivery Prediction Performance in Pregnant Women with Short Cervix: a Prospective Study

Park HS, Kwon H, Kwak DW, Kim MY, Seol HJ, Hong JS, Shim JY, Choi SK, Hwang HS, Oh MJ, Cho GJ, Kim K, Oh SY, Korean Society of Ultrasound in Obstetrics and Gynecology Research Group

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...
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Maximum diameter versus volumetric assessment for the response evaluation of vestibular schwannomas receiving stereotactic radiotherapy

Choi Y, Kim S, Kwak DW, Lee HS, Kang MK, Lee DK, Hur WJ

PURPOSE: To explore the feasibility of maximum diameter as a response assessment method for vestibular schwannomas (VS) after stereotactic radiosurgery or fractionated stereotactic radiotherapy (RT), we analyzed the concordance of...
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Evaluation of the learning curve for external cephalic version using cumulative sum analysis

Kim SY, Han JY, Chang EH, Kwak DW, Ahn HK, Ryu HM, Kim MY

OBJECTIVE: We evaluated the learning curve for external cephalic version (ECV) using learning curve-cumulative sum (LC-CUSUM) analysis. METHODS: This was a retrospective study involving 290 consecutive cases between October 2013 and...
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Prenatal diagnosis of 4p deletion syndrome: A case series report

Kwak DW, Ahn HK

The 4p deletion syndrome, also known as Wolf-Hirschhorn syndrome, is a well-known genetic disorder caused by a partial deletion of the short arm of chromosome 4. The great variability in...
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Prenatal diagnosis of 5p deletion syndrome: A case series report

Han YJ, Kwak DW

5p deletion syndrome, also known as Cri-du-Chat syndrome, is a chromosomal abnormality caused by a deletion in the short arm of chromosome 5. Clinical features of 5p deletion syndrome are...
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Maternal Thyroid Function during the First Trimester of Pregnancy in Korean Women

Choi HW, Han YJ, Kwak DW, Park SY, Kim SH, Yoon HK, Yim CH

BACKGROUND AND OBJECTIVES: Thyroid dysfunction during pregnancy can result in many complications for both mother and infant. Due to the physiologic changes in thyroid stimulating hormone (TSH) level during early...
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Practice patterns in the management of threatened preterm labor in Korea: A multicenter retrospective study

Hwang HS, Na SH, Hur SE, Lee SA, Lee KA, Cho GJ, Oh KY, Jin CH, Lee SM, Shin JE, Park KH, Lim JY, Choi SJ, Lee JH, Choi SK, Shim JY, Jo YS, Choi GY, Kim YH, Kil KC, Kim JW, Kwak DW, Kang YD, Kim YJ

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...
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Observed frequency of fetal trisomy between 16 and 24 gestational weeks in pregnant women older than 34 years at delivery

Jeong SO, Han YJ, Lee SW, Kwak DW, Chung JH, Ahn HK, Choi JS, Han JY, Kim MY, Park SY, Ryu HM, Kim MH

PURPOSE: Increased maternal age is a major risk factor for chromosomal abnormalities. The maternal age-specific risk of fetal trisomy was theoretically calculated. We investigated the actual frequency of fetal trisomy...
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The practice patterns of second trimester fetal ultrasonography: A questionnaire survey and an analysis of checklists

Park HS, Seong WJ, Hong JS, Seol HJ, Hwang HS, Kim K, Ko HS, Kwak DW, Oh SY, Kim MY, Kim SJ, Korean Society of Ultrasound in Obstetrics and Gynecology Research Group

OBJECTIVE: To analyze practice patterns and checklists of second trimester ultrasonography, and to investigate management plans when soft markers are detected among Korean Society of Ultrasound in Obstetrics and Gynecology...
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2014 First-trimester ultrasound forum from the Korean Society of Ultrasound in Obstetrics and Gynecology

Oh SY, Hong JS, Seol HJ, Hwang HS, Park HS, Kim K, Ko HS, Kwak DW, Kim MY, Park MH, Oh MJ, Park JS, Kim SJ, Korean Society of Ultrasound in Obstetrics and Gynecology Research Group

A first-trimester ultrasound scan has become an essential part of antenatal care. The Korean Society of Ultrasound in Obstetrics and Gynecology held a first-trimester ultrasound forum on April 5, 2014....
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The clinical practice patterns of fetal ultrasonography in the first-trimester: A questionnaire survey of members of the Korean Society of Ultrasound in Obstetrics and Gynecology

Kim KW, Kwak DW, Ko HS, Park HS, Seol HJ, Hong JS, Yang SW, Hwang HS, Oh SY, Kim MY, Kim SJ

OBJECTIVE: This study aimed to survey the current clinical practice of first-trimester ultrasonography among members of the Korean Society of Ultrasound in Obstetrics and Gynecology (KSUOG) and to provide basic...
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Gestational weight gain is an important risk factor for excessive fetal growth

Lee JM, Kim MJ, Kim MY, Han JY, Ahn HK, Choi JS, Chung JH, Lee SW, Han YJ, Kwak DW, Ryu HM, Kim MH

OBJECTIVE: To estimate the odds ratio of prepregnant body mass index (BMI), gestational weight gain (GWG), and gestational diabetes mellitus (GDM) for excessive fetal growth, which we define as large...
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A Case of Term Delivery with Diagnosis of Severe Oligohydramnios after Exposure to Glimepiride, Metformin and Antihypertensive agents Including Angiotensin Receptor Antagonist up to Approximately 20 Weeks of Pregnancy

Kwak DW, Yoo IS, Choi JS

Various fetal and maternal conditions are known to be associated with oligohydramnios. In general, oligohydramnios developed early in pregnancy is less common but frequently has a poor prognosis. The use...
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Clinical Experiences of Molecular Genetic Evaluation of Achondroplasia in Prenatal and Neonatal Cases

Kwak DW, Kim HJ, Park SY, Ahn HS, Chae YH, Kim MY, Lee YH, Ryu HM

PURPOSE: The purpose of this study was to assess the characteristics of achondroplasia (ACH) diagnosed in fetuses or neonates and to evaluate the usefulness of a molecular genetic testing to...
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Prenatal Diagnosis of Chromosome 22q11.2 Deletions: Experiences in a Single Institution

Chae YH, Kwak DW, Kim MY, Park SY, Lee BY, Lee YW, Lee YH, Song MJ, Ryu HM

PURPOSE: This study was designed to determine the frequency and echocardiographic findings of 22q11.2 deletions in fetuses with cardiac defects on fetal ultrasound or familial backgrounds of 22q11.2 deletions. MATERIALS AND...
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Development of Prototype Quality Assurance Procedure for Blood Irradiator Using Glass Dosimeter Jig

Jeong DH, Kang YR, Moon YM, Kim HJ, Kwak DW, Kim JK, Lee MW

  • KMID: 2425224
  • Korean J Med Phys.
  • 2012 Jun;23(2):123-126.
For the purpose of quality assurance (QA) of the blood irradiator, QA programs for daily, monthly, and yearly were developed. For daily tests, simple items for basically operating the machine...
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