Publications by authors named "Hyung Joon Yoon"

Purpose: In this study, we aimed to retrospectively investigate the real-world clinical efficacy and adverse events of poly(adenosine diphosphate [ADP]-ribose) polymerase (PARP) inhibitors in real-world clinical practice among patients with newly diagnosed epithelial ovarian cancer.

Methods: We retrospectively reviewed the medical records from hospitals. Patients with epithelial ovarian cancer treated with olaparib or niraparib as frontline maintenance treatment between 1 January 2014 and 31 December 2022 were included.

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Endometrial cancer (EC) is a growing public health concern in developed countries. The incidence of EC is increasing, particularly in younger women (aged <50 years). Ankle fractures are relatively common orthopedic injuries, with the most common mechanisms being falls or trauma.

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Article Synopsis
  • The study investigated the relationship between fetal subcutaneous tissue (SCT) thickness and glucose metabolism in newborns, particularly focusing on the differences between women with gestational diabetes mellitus (GDM) and those with normal glucose levels.
  • It involved 117 pregnant women scheduled for cesarean delivery, where SCT thickness was measured using ultrasound pre-delivery and calipers post-delivery, alongside glucose and insulin levels from cord blood.
  • Results showed that fetuses of mothers with GDM had greater SCT thickness and higher glucose/insulin levels, indicating a link between increased SCT and insulin resistance in newborns of these mothers.
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  • The study aimed to evaluate the survival outcomes of three types of radical hysterectomy (TARH, TLRH, and LARVH) in patients with stage IB2 cervical cancer from 2010 to 2017.!
  • A total of 194 patients were analyzed, and no significant differences were found in characteristics between the groups, although TLRH showed a significantly worse 5-year progression-free survival compared to TARH.!
  • The findings indicate that, for patients with stage IB2 cervical cancer, TLRH is associated with poorer progression-free survival compared to TARH, while LARVH does not show a significant difference in outcome relative to TARH.!
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Purpose: To investigate the effect of intravenous MgSO on maternal cerebral hemodynamics as well as the association between altered Doppler indices of the ophthalmic arteries and ocular lesions in patients with preeclampsia.

Methods: After each of the 15 included patients was diagnosed with preeclampsia, MgSO was infused followed by transcranial Doppler tests of the indices of the ophthalmic, anterior, middle, posterior cerebral, vertebral, and basilar arteries, followed by a second MgSO infusion. The peak, mean, diastolic velocity, and pulsatile and resistance indices of each artery were automatically measured during testing.

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Rationale: Pulmonary cryptococcal infections occur mainly in immunocompromised individuals, such as those with malignancies. Preoperative diagnosis of pulmonary cryptococcosis (PC) can be challenging for both clinicians and radiologists because of nonspecific clinical manifestations and variable radiologic features, as it is easily misdiagnosed as metastatic lung cancer.

Patient Concerns: In case 1, a 76-year-old woman with a history of cervical cancer presented with lung nodules detected on chest computed tomography (CT) 13 months after completing concurrent chemoradiotherapy.

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Purpose: The diagnostic value of preoperative hematological changes in endometrial cancer (EC) remains unclear. This study aimed to assess the role of preoperative hematologic parameters in differentiating EC from benign endometrial lesions in postmenopausal women with endometrial masses.

Methods: Preoperative laboratory variables were retrospectively reviewed in patients with malignant or benign endometrial lesions, and the significance of intergroup differences was assessed.

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Objective: The therapeutic effect of poly (ADP-ribose) polymerase (PARP) inhibitors in patients with epithelial ovarian cancer (EOC) with somatic BRCA mutations is consistent with that observed in patients with germline BRCA mutations, indicating the importance of detecting both germline and somatic BRCA mutations concurrently. We compared the efficacy of multi-gene panel next generation sequencing (NGS) in EOC patients' formalin-fixed, paraffin-embedded (FFPE) tissue to that of conventional Sanger sequencing in blood samples.

Materials And Methods: This study included 48 patients with EOC, and both blood Sanger sequencing and FFPE tissue NGS were conducted in all of them.

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Preoperative tumor markers and imaging often differ in predicting whether an ovarian tumor is malignant. Therefore, we evaluated the correlation between the predictive values of imaging and tumor markers for diagnosing ovarian tumors, especially when there were discrepancies between the two. We enrolled 1047 patients with ovarian tumors.

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Introduction: A poorly differentiated lymphoepithelioma-like carcinoma (LELC) of the cervix is an extremely rare presentation. We herein present an unusual case of LELC of the cervix, which was treated with radical trachelectomy for fertility preservation.

Patient Concerns: A 28-year-old female patient presented with a 1-month-history of post-coital vaginal bleeding, and a 2 cm tumor was found on gynecological sonography and magnetic resonance imaging.

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Background: The aim of this study was to evaluate efficacy of various fertility-preservative treatments with progestin and analyze prognostic factors in Stage 1A of endometrial cancer.

Materials And Methods: This retrospective study involved four Korean university hospitals. Data were collected from 43 women who were under the age of 40 with presumed stage IA endometrial cancer determined by magnetic resonance imaging and treated from January 2014 to December 2017.

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Laryngopharyngeal reflux (LPR) has been suggested as a possible cause of post-thyroidectomy syndrome. However, the pathophysiology and relationship between thyroidectomy and LPR have not been well investigated. We aimed to evaluate the correlation between thyroidectomy and LPR by assessing changes in LPR-related symptoms and laryngoscopic findings before and after thyroidectomy.

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Background: Thymosin β4 (Tβ4) is a highly conserved actin binding protein associated with the metastatic potential of tumor cells by stimulating cell migration. The role of Tβ4 and its derived fragment peptides in migration of ovarian cancer cells has not been studied.

Objective: To analyze the effects of Tβ4 and its derived fragment peptides on ovarian cancer cell migration and invasion, we applied Tβ4 and three Tβ4-derived synthetic peptides to SKOV3 ovarian cancer cells.

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Dedifferentiated leiomyosarcoma of the primary mesentery is extremely rare. We report a case of dedifferentiated leiomyosarcoma (LMS) of the primary mesentery mimicking ovarian cancer. A 62-year-old woman presented with progressive low abdominal pain.

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