Publications by authors named "Joohyun Nam"

Purpose: To evaluate the efficacy and safety of docetaxel/cisplatin chemotherapy followed by pelvic radiation therapy after staging surgery in patients with high-risk endometrial cancer.

Methods And Materials: In this open-label, single-arm, phase 2 trial conducted at 2 South Korean centers, we enrolled patients with histologically confirmed endometrial cancer who had undergone staging surgery. Inclusion criteria were based on International Federation of Gynecology and Obstetrics (FIGO) Staging 2009: stage I patients with ≥2 risk factors (grade 3, positive lymphovascular invasion, more than half of myometrium invasion); stage IB and II patients with clear cell or serous adenocarcinoma; stage II patients post-type 1 hysterectomy; and patients at stage III.

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The Korean Gynecologic Oncology Group (KGOG) was established in 2002 and is the only organization in Korea conducting multi-center clinical trials for gynecologic cancers. Since its re-establishment as a non-profit organization in 2021, KGOG has grown significantly, now including 207 gynecologic oncology specialists from 76 hospitals. This growth is a testament to the dedication and hard work of all those involved in the organization.

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Study Objective: To evaluate the efficacy of hemostatic sealant versus electrosurgical energy in achieving hemostasis and preserving postoperative ovarian reserve during laparoscopic ovarian cystectomy.

Design: Randomized controlled trial.

Setting: Single-center study.

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Article Synopsis
  • Irritable bowel syndrome (IBS) is a GI condition that leads to altered bowel habits, but its exact causes are unclear.
  • Gintonin, a glycoprotein derived from ginseng, showed promise in a mouse model of IBS by improving colon health, reducing inflammation, and alleviating pain behaviors.
  • The treatment with gintonin also altered the gut microbiota and inhibited specific ion channels linked to gastrointestinal sensitivity and function, indicating its potential as a therapeutic option for IBS.
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Objective: To evaluate the feasibility and safety of laparo-endoscopic single-site surgery (LESS) compared with conventional laparoscopic surgery (CLS) for early-stage endometrial cancer.

Methods: Patients with clinical stage IA, IB, grade 1-3 endometrial cancer were randomly assigned to undergo LESS or CLS. The primary endpoint was the non-inferiority of LESS to CLS in terms of operation time and the number of resected pelvic lymph nodes.

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Objective: The primary objective of the study was to estimate the 12-month progression-free survival (PFS) for carboplatin/paclitaxel + temsirolimus in women with newly diagnosed clear cell ovarian cancer (CCOC), compared to historical controls in this patient population.

Methods: Patients with Stage III or IV CCOC were treated with Paclitaxel 175 mg/m2 on Day 1, Carboplatin AUC 6 Day 1, and temsirolimus (CCI-779) 25 mg IV Days 1 and 8 every 3 weeks for Cycles 1-6 or disease progression, followed by consolidation therapy with temsirolimus 25 mg Days 1, 8, and 15 every 3 weeks cycles 7-17 or until disease progression.

Results: Ninety patients were accrued to the study: 45 in the US and Korea (US/Korea) and 45 in Japan.

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Purpose: This study evaluated whether coping strategies (positive reframing, planning, and active coping) and depression mediate the relationship between sense of coherence (SOC) and quality of life (QoL) using a serial multiple mediator model in patients with gynecologic cancer who are undergoing chemotherapy.

Methods: A sample of 148 participants, with a mean age of 52.17 years (range 20-75) and diagnosed with gynecological cancer (e.

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To compare the oncologic outcomes between chemoradiotherapy (CRT) and radical hysterectomy followed by tailored adjuvant therapy in patients with early cervical cancer presenting with pelvic lymph node metastasis. We retrospectively analyzed the medical records of women with early cervical cancer presenting with positive pelvic nodes identified on pretreatment imaging assessment. Propensity score matching was employed to control for the heterogeneity between two groups according to confounding factors.

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The aim of this study is to analyze the correlation between clinically significant histologic results and HPV in women with AGC in pap test. Of the 311 women confirmed as AGC, 111 women (35.7%) was identified as positive for HPV.

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Article Synopsis
  • The study investigates the effects of surgical staging on clinical outcomes in patients with mucinous borderline ovarian tumors, highlighting the controversy around upstaging in non-serous cases confined to the ovary.
  • Conducted over 25 years with 432 patients, the research divides participants into a 'staging group' (85%) and an 'unstaged group' (15%) based on the surgical procedures they underwent.
  • Results show no significant difference in recurrence-free survival or overall survival between the two groups, with only 4.4% of patients in the staging group being upstaged during the study.
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The lymph node status is the most important prognostic factor for endometrial cancer. This study aimed to assess whether sentinel lymph node mapping (SLNM) is applicable in endometrial cancer. A retrospective review of patients with endometrial cancer who were diagnosed and treated in Asan Medical Centre from September 2015 to December 2017 was conducted.

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Background: Secondary surgical cytoreduction in women with platinum-sensitive, recurrent epithelial ovarian, primary peritoneal, or fallopian-tube ("ovarian") cancer is widely practiced but has not been evaluated in phase 3 investigation.

Methods: We randomly assigned patients with recurrent ovarian cancer who had received one previous therapy, had an interval during which no platinum-based chemotherapy was used (platinum-free interval) of 6 months or more, and had investigator-determined resectable disease (to no macroscopic residual disease) to undergo secondary surgical cytoreduction and then receive platinum-based chemotherapy or to receive platinum-based chemotherapy alone. Adjuvant chemotherapy (paclitaxel-carboplatin or gemcitabine-carboplatin) and use of bevacizumab were at the discretion of the investigator.

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Background: Data are limited regarding the use of poly(adenosine diphosphate [ADP]-ribose) polymerase inhibitors, such as veliparib, in combination with chemotherapy followed by maintenance as initial treatment in patients with high-grade serous ovarian carcinoma.

Methods: In an international, phase 3, placebo-controlled trial, we assessed the efficacy of veliparib added to first-line induction chemotherapy with carboplatin and paclitaxel and continued as maintenance monotherapy in patients with previously untreated stage III or IV high-grade serous ovarian carcinoma. Patients were randomly assigned in a 1:1:1 ratio to receive chemotherapy plus placebo followed by placebo maintenance (control), chemotherapy plus veliparib followed by placebo maintenance (veliparib combination only), or chemotherapy plus veliparib followed by veliparib maintenance (veliparib throughout).

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Objective: To investigate the expression of different histone deacetylases and their association with disease characteristics and survival outcomes in uterine leiomyosarcoma patients.

Methods: The immunohistochemical expression of different histone deacetylases and p53 by tissue microarray and histological subtypes were assessed in tumor tissue samples of 42 eligible patients.

Results: Histone deacetylases 1-4, 6 and 8 showed prevalent and strong (3+) expression (88.

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Objective: To explore the factors influencing adoption of the sentinel lymph node (SLN) technique for endometrial cancer staging among gynecologic oncologists.

Methods: A self-administered, web-based survey was sent via email (April 20 through May 21, 2017) to all members of European Society of Gynecologic Oncologists, International Gynecologic Cancer Society, and Society of Gynecologic Oncologists. Surgical and pathologic practices related to SLN and reasons for not adopting this technique were investigated.

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The aim of this study is to determine the rate of clinically significant histopathologic lesions in women identified with atypical glandular cells (AGC). Five-hundered and forty patients with AGC, from a cohort of 1013 with AGC, met inclusion criteria for this study by having a proper histologic evaluation. Clinically significant histologic results were obtained in 170 cases with AGC (31.

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Objectives: The aim of this study was to compare surgical and oncologic outcomes of open and laparoscopic surgery in patients with borderline ovarian tumors (BOTs).

Materials And Methods: This study included patients with BOTs who underwent open (n = 433) or laparoscopic (n = 210) surgery between 1990 and 2015. Surgical outcomes, perioperative morbidity, and disease-free survival and overall survival were compared.

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Background: Palliative chemotherapy should be used with caution when attempting to alleviate symptoms in patients with end-stage cancer. However, palliative chemotherapy continues to be utilized in cancer patients during their last stages of life. In this study, we analyzed the pattern of chemotherapy administered during the last 6 months of life in patients with end-stage gynecologic cancer who were treated with active palliative chemotherapy for the past 10 years.

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To determine whether the pelvic lymph node ratio (LNR) has significant prognostic value for survival and disease recurrence in node-positive, early stage cervical cancer patients.The medical records of 872 consecutive women who received postoperative adjuvant chemoradiotherapy were reviewed. Of these, 397 women with pathologically proven lymph nodal metastasis were included in this analysis and categorized into 3 groups according to their LNR: low (<0.

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To evaluate the immunohistochemical (IHC) expression of hormone receptors and analyze the prognostic implication of these receptors in patients with endometrial stromal sarcoma (ESS). Fifty-one patients with ESS whose paraffin blocks and pathologic slides, which were obtained after hysterectomy, were available and included in this study. Clinicopathologic data were gathered from patients' medical records, and IHC staining of hormone receptors was performed using tissue microarrays.

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Objective: To determine the role of preoperative serum cancer antigen 125 (CA 125) in malignant ovarian germ cell tumors (MOGCTs).

Materials And Methods: Using information from medical databases of Asan Medical Center (Seoul, Korea), we investigated 161 patients with histologically diagnosed MOGCTs and whose preoperative serum CA 125 had been checked. We determined the optimal cutoff value of CA 125 as > 249.

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The histoculture drug response assay (HDRA) has been correlated clinically to a number of cancer types (please see Chaps. 7 - 11 of the present volume). The present chapter reviews the clinical trials of the HDRA for ovarian cancer.

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Background: Lymph node metastasis is a significant predictive factor for disease recurrence and survival in cervical cancer patients. Given the importance of lymph node metastasis, it is imperative that patients harboring metastasis are identified and can undergo appropriate treatment. Sentinel lymph node (SLN) mapping has drawn attention as a lymph node mapping technique.

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