Lee T.S.,Boramae Medical Center |
Lee J.-Y.,Seoul National University |
Kim J.-W.,Seoul National University |
Oh S.,Boramae Medical Center |
And 6 more authors.
Gynecologic Oncology | Year: 2013
Objective The aim of this study was to evaluate the impact of ovarian preservation on the recurrence and survival rates of premenopausal women with early-stage endometrial cancer. Methods Using medical records of premenopausal women who received primary surgical treatment for stage I-II endometrial cancer, the demographics and survival rates were compared retrospectively for patients who had ovarian preservation and those who underwent bilateral salpingo-oophorectomy. Cox proportional hazards models with inverse probability of treatment weighting (IPTW) based on propensity score were performed to adjust for selection bias between the two groups. Results A total of 495 women were identified, including 176 patients who had ovarian preservation. The ovarian preservation group was younger (P < 0.001) and had an earlier year of diagnosis (P = 0.014), a lower prevalence of lymphadenectomy (P < 0.001), and a marginally significant association with lower tumor grade (P = 0.052). The Kaplan-Meier curve and the log rank test showed no difference in either recurrence-free survival (P = 0.742) or overall survival (P = 0.462) between the two groups. In a multivariate Cox model adjusted by IPTW and covariates, ovarian preservation had no effect on either recurrence (hazard ratio [HR], 0.73; 95% CI, 0.29-1.81) or overall survival (HR, 1.33; 95% CI, 0.43-4.09). Conclusions Ovarian preservation does not appear to be associated with an adverse impact on the outcomes of premenopausal women with early-stage endometrial cancer. The present study has useful implications for physicians counseling young women who want to preserve their ovaries. © 2013 Elsevier Inc.
Louisirirotchanakul S.,Siriraj Hospital |
Khupulsup K.,Ramathibodi Hospital |
Akraekthalin S.,Phyathai Hospital |
Chan K.P.,Singapore General Hospital |
And 5 more authors.
Journal of Medical Virology | Year: 2010
South East Asia has some of the highest prevalence rates of hepatitis B virus (HBV) infection (≥8%) in the world, and the emergence of hepatitis B surface antigen (HBsAg) mutant strains is a growing problem. Assays with the highest levels of sensitivity, including mutant detection, should be used for routine HBsAg screening. In this large multicenter study, the clinical and technical performance of the fully automated Elecsys HBsAg II assay was compared with the Architect, AxSYM, and Advia Centaur HBsAg assays for HBsAg screening. Nine laboratories (three each from Thailand, Korea, and Singapore) compared the Elecsys HBsAg II assay with their routine HBsAg screening assay against a range of stored and routine clinical samples, including recombinant mutants. The Elecsys HBsAg II assay demonstrated equivalent sensitivity and specificity to the Architect HBsAg assay. However, the ElecsysHBsAg II assay recognized a native mutant sample (L94S, L97V, L98V, T123A) that the Architect HBsAg assay failed to detect. The AxSYM and Advia Centaur HBsAg assays appeared less sensitive for the detection of early HBV infection and also failed to detect some of the recombinant mutant strains. There was almost complete agreement between the Elecsys HBsAg II assay and comparator assays with respect to routine serum samples. The results of this study demonstrate that the Elecsys HBsAg II assay is a highly sensitive and specific screening assay for HBsAg and detects reliably the most important and clinically relevant HBV mutants and genotypes. It is suitable for routine HBsAg screening in Asia. © 2010 Wiley-Liss, Inc.
A Randomized, Multicenter, Double-blind, Placebo-controlled, 3 × 3 Factorial Design, Phase II Study to Evaluate the Efficacy and Safety of the Combination of Fimasartan/Amlodipine in Patients With Essential Hypertension
PubMed | Soonchunhyang University, Korea University, Chonnam National University, Catholic University of Daegu and 16 more.
Type: Clinical Trial, Phase II | Journal: Clinical therapeutics | Year: 2015
The objective of this study was to evaluate the efficacy and safety of a fimasartan/amlodipine combination in patients with hypertension and to determine the optimal composition for a future single-pill combination formulation.This Phase II study was conducted by using a randomized, multicenter, double-blind, placebo-controlled, 3 3 factorial design. After a 2-week placebo run-in period, eligible hypertensive patients (with a sitting diastolic blood pressure [SiDBP] between 90 and 114 mm Hg) were randomized to treatment. They received single or combined administration of fimasartan at 3 doses (0, 30, and 60 mg) and amlodipine at 3 doses (0, 5, and 10 mg) for 8 weeks. The primary efficacy end point was the change in SiDBP from baseline and at week 8; secondary end points included the change in SiDBP from baseline and at week 4 and the changes in sitting systolic blood pressure from baseline and at weeks 4 and 8. Treatment-emergent adverse events (AEs) were also assessed.420 Korean patients with mild to moderate hypertension were randomly allocated to the 9 groups. Mean (SD) SiDBP changes in each group after 8 weeks were as follows: placebo, -6.0 (8.5) mm Hg; amlodipine 5 mg, -10.6 (9.2) mm Hg; amlodipine 10 mg, -15.9 (7.2) mm Hg; fimasartan 30 mg, -10.1 (9.1) mm Hg; fimasartan 60 mg, -13.0 (10.0) mm Hg; fimasartan 30 mg/amlodipine 5 mg, -16.2 (8.5) mm Hg; fimasartan 30 mg/amlodipine 10 mg, -19.5 (7.5) mm Hg; fimasartan 60 mg/amlodipine 5 mg, -16.6 (6.9) mm Hg; and fimasartan 60 mg/amlodipine 10 mg, -21.5 (8.3) mm Hg. All treatment groups produced significantly greater reductions in blood pressure compared with the placebo group. In addition, all combination treatment groups had superior reductions in blood pressure compared with the monotherapy groups. In the combination treatment groups, doubling fimasartan dose in the given dose of amlodipine did not show further BP reduction, whereas doubling amlodipine dose showed significantly further BP reduction in the given dose of fimasartan. During the study period, 75 (17.9%) of 419 patients experienced 110 AEs. Ninety-five AEs were mild, 9 were moderate, and 6 were severe in intensity. Eight patients discontinued the study due to AEs. There was no significant difference in incidence of AEs among groups (P = 0.0884). The most common AE was headache (12 patients [2.9%]), followed by dizziness (11 patients [2.6%]) and elevated blood creatine phosphokinase levels (6 patients [1.4%]).Fimasartan combined with amlodipine produced superior blood pressure reductions and low levels of AEs compared with either monotherapy. Therefore, a single-pill combination with fimasartan 60 mg/amlodipine 10 mg will be developed. ClinicalTrials.gov: NCT01518998.
Park S.Y.,Cheil General Hospital |
Kim K.H.,Sungkyunkwan University |
Yuk J.-S.,Eulji University |
Ji H.Y.,Eulji University |
Lee J.H.,Eulji University
European Journal of Obstetrics Gynecology and Reproductive Biology | Year: 2015
Objective To compare postoperative cosmetic outcomes according to different umbilical closure methods after single port laparoscopic surgery (SP-LS). Study design A total of 138 women who were scheduled to receive elective SP-LS were randomized to undergo closure of the umbilical incision with either a subcutaneous suture only without subcuticular skin suture (case group, n = 68) or both a subcutaneous suture and subcuticular skin suture (control group, n = 70) after fascial closure. At postoperative months 1 and 3, the umbilical scar was evaluated using the Vancouver scar scale (VSS), the patient and observer scar assessment scale, and a visual analog scale (VAS). Overall satisfaction with scar cosmesis and surgery was assessed with the VAS. Results There was no significant difference in the clinical characteristics and operative data between the groups. The objective and subjective scar assessments and the overall satisfaction with scar cosmesis were not different between the groups. In the control group, four (5.7%) women experienced wound discharge and were treated with conservative treatments and delayed closure. In women who completed the first and second assessments, the changes in the scar assessment and overall satisfaction with the scar according to time after surgery were not different in either group, but the patient scar assessment scale in both groups and the VSS in the case group improved. Conclusions After SP-LS, the approximation of the fascia and subcutaneous layer seems to be enough for the closure of an umbilical incision. Skin closure with subcuticular sutures did not improve the postoperative cosmetic outcomes and might lead to impaired wound healing. However, large randomized trials with various closure techniques and materials are needed to confirm this finding. © 2015 Elsevier Ireland Ltd. All rights reserved.
Choi I.-Y.,Korea University |
Lim J.H.,Cheil General Hospital |
Hwang S.,Korea University |
Lee J.-C.,Seoul National University |
And 2 more authors.
Free Radical Research | Year: 2010
(S)-cis-verbenol, a natural metabolite from (-)-alpha-pinene of host pine tree, has been suggested to have anti-ischemic activity. However, the exact mechanism for the anti-ischemic activity of (S)-cis-verbenol remains unclear yet. In the present study, (S)-cis-verbenol reduced cerebral ischemic injury caused by 1.5-h middle cerebral artery occlusion followed by 24-h reperfusion. Furthermore, (S)-cis-verbenol signifi cantly prevented neuronal cell death caused by oxygen-glucose deprivation (OGD, 1 h) and subsequent re-oxygenation (5 h). While (S)-cis-verbenol did not inhibit the NMDA-stimulated calcium infl ux, it reduced the intracellular level of reactive oxygen species (ROS) elevated by OGD/re-oxygenation. ORAC assay indicated that (S)-cis-verbenol potently eliminated peroxyl radicals. In DPPH and DHR123 fl uorescence assays, however, (S)-cis-verbenol did not show a direct ROS scavenging effect. Furthermore, (S)-cis-verbenol reduced the expression levels of pro-infl ammatory cytokines in ischemic brain and immunostimulated glial cells. The present results indicate that (S)-cis-verbenol may be a useful therapeutic agent due to its anti-oxidative and anti-infl ammatory activities. © 2010 Informa UK Ltd. (Informa Healthcare, Taylor & Francis AS).
PubMed | Cheil General Hospital and Seoul National University
Type: Journal Article | Journal: Pulse (Basel, Switzerland) | Year: 2015
The Korean Society of Hypertension published new guidelines for the management of hypertension in 2013 which fully revised the first Korean hypertension treatment guideline published in 2004. Due to shortage of Korean data, the Committee decided to establish the guideline in the form of an adaptation of the recently released guidelines. The prevalence of hypertension was 28.5% in the recent Korean National Health and Nutrition Examination Survey in 2011, and the awareness, treatment, and control rates are generally improving. However, the risks for cerebrovascular disease and coronary artery disease which are attributable to hypertension were the highest in Korea. The classification of hypertension is the same as in other guidelines. The remarkable difference is that prehypertension is further classified as stage 1 and 2 prehypertension because the cardiovascular risk is significantly different within the prehypertensive range. Although the decision-making was based on office blood pressure (BP) measured by the auscultation method using a stethoscope, the importance of home BP measurement and ambulatory BP monitoring is also stressed. The Korean guideline does not recommend a drug therapy in patients within the prehypertensive range, even in patients with prediabetes, diabetes mellitus, stroke, or coronary artery disease. In an elderly population over 65 years old, drug therapy can be initiated when the systolic BP (SBP) is 160 mm Hg. The target BP is generally an SBP of <140 mm Hg and a diastolic BP (DBP) of <90 mm Hg regardless of previous cardiovascular events. However, in patients with hypertension and diabetes, the lower DBP control <85 mm Hg is recommended. Also, in patients with hypertension with prominent albuminuria, a more strict SBP control <130 mm Hg can be recommended. In lifestyle modification, sodium reduction is the most important factor in Korea. Five classes of antihypertensive drugs, including angiotensin-converting enzyme inhibitors, -blockers, calcium antagonists, and diuretics, are equally recommended as a first-line treatment, whereas a combination therapy chosen from renin-angiotensin system inhibitors, calcium antagonists, and diuretics is preferentially recommended.
Hahn H.-S.,Cheil General Hospital |
Chun Y.-K.,Cheil General Hospital |
Kwon Y.-I.,Hallym University |
Kim T.-J.,Cheil General Hospital |
And 4 more authors.
European Journal of Obstetrics Gynecology and Reproductive Biology | Year: 2010
Objective: To evaluate the prevalence of concurrent endometrial carcinoma in women diagnosed with atypical endometrial hyperplasia (AEH) by endometrial biopsy. Study design: We retrospectively analyzed the medical records of 126 patients who underwent hysterectomies for AEH diagnosed by endometrial biopsy from 1999 to 2008. AEH was initially diagnosed by dilatation and curettage (98 cases) or endometrial biopsy with a Z-sampler (24 cases). The remaining four cases were diagnosed by hysteroscopic polypectomy. The results of the endometrial biopsies were graded on an ordinal scale and were compared with pathologic features obtained at the hysterectomy. Results: In patients preoperatively diagnosed with AEH by biopsy, hysterectomy specimens revealed a rate of simple or complex endometrial hyperplasia without atypia of 27% with AEH and normal proliferative phases found in 54.7 and 7.9% of specimens, respectively. The incidence of endometrial carcinoma was considerably high (13/126, 10.3%). Eleven of 13 cases were confined to the endometrium and the remaining two were located at the adenomyosis without myometrial invasion. All patients with endometrial carcinoma displayed coexisting atypical complex hyperplasia following hysterectomy. Conclusions: Biopsy specimens showing AEH, particularly atypical complex hyperplasia, are associated with a risk of coexisting endometrial carcinoma. When considering management strategies for women with a biopsy diagnosis of AEH, clinicians should take into account the considerable rate of concurrent endometrial cancer and the discrepancy with pathologic diagnosis. Treatment modalities may differ depending on population as the rates of concurrent endometrial cancer with AEH and myometrial invasion vary by geographical location. © 2010 Elsevier Ireland Ltd. All rights reserved.
Kim S.Y.,Cheil General Hospital |
Lim J.H.,Cheil General Hospital |
Park S.Y.,Cheil General Hospital |
Kim M.Y.,Catholic Kwandong University |
And 2 more authors.
Clinica Chimica Acta | Year: 2012
Background: Detection of cell-free fetal DNA (cffDNA) in maternal plasma has given rise to the possibility of new non-invasive approaches for early prenatal diagnoses. We evaluated the feasibility and accuracy of non-invasive fetal gender determination using quantitative fluorescent-polymerase chain reaction (QF-PCR) analysis of circulating cffDNA in the first-trimester maternal plasma. Methods: Plasma samples were prospectively collected from 202 singleton pregnancies at 4 to 13. weeks of gestation. Fetal gender was determined by QF-PCR with the sex-determining region Y (SRY) and amelogenin X/Y (AMELX/. Y) genes. The result was confirmed by fetal karyotyping or phenotype at birth. Results: Of the 202 pregnancies, 162 had pregnancy outcomes available and could be included in our evaluation. The accuracies of AMELX/. Y, SRY, and combined AMELX/. Y+. SRY analysis for fetal gender determination were 83.3%, 82.1%, and 97.5%, respectively, compared with those of the invasive approach and the fetal gender outcome at birth (82 males and 80 females). Combined AMELX/. Y+. SRY analysis had the highest sensitivity (98.8%) for fetal gender determination with a specificity of 96.3%. Moreover, fetal gender detection by the combined AMELX/. Y+. SRY analysis at 11 to 13. weeks of gestation was 100% correct. Conclusion: Fetal gender determination could be accurately determined from maternal cffDNA in the first-trimester using QF-PCR analysis of combined AMELX/. Y+. SRY. © 2011 Elsevier B.V.
Kim W.-C.,Cheil General Hospital |
Kwon Y.-S.,Cheil General Hospital
Journal of Minimally Invasive Gynecology | Year: 2010
Herein, we describe a surgical approach for management of a pregnant woman with an ovarian tumor using laparoendoscopic single-site surgery with exteriorization. We assessed both the feasibility and cosmetic outcome. The operation lasted 25 minutes, and the estimated blood loss was negligible. No perioperative or postoperative complications developed, and the patient was discharged on postoperative day 2. © 2010 AAGL.
Kwak D.-W.,Cheil General Hospital |
Kwak D.-W.,Yonsei University |
Hwang H.-S.,Konkuk University |
Kwon J.-Y.,Yonsei University |
And 2 more authors.
Journal of Maternal-Fetal and Neonatal Medicine | Year: 2014
Objective: The purpose of this study was to determine the prevalence of Ureaplasma urealyticum (UU) and Mycoplasma hominis (MH) in patients with preterm labor or preterm premature rupture of membranes (PPROM) and to determine the effect of these organisms on pregnancy outcomes based on the density of colonization. Methods: The study group consisted of 184 women with preterm labor or PPROM. Vaginal cultures for UU and MH were performed for all patients at admission, and the placentas were histologically evaluated after delivery. Results: The prevalence of positive vaginal fluid cultures for genital mycoplasma was 62.5% (112/179). This group included 99 patients carrying only UU and 13 carrying both organisms. No patients were found to carry only MH. Compared to patients only positive for UU, patients with both organisms showed significantly decreased gestational age at birth and birth weight, and significant increases in the incidences of preterm birth, NICU admissions and histologic chorioamnionitis. Conclusion: Vaginal MH tends to be detected with UU, and patients carrying both organisms simultaneously had more severe adverse pregnancy outcomes compared to patients in preterm labor or PPROM who were only positive for UU. © 2014 Informa UK Ltd.