Publications by authors named "Kimio Mizuno"

Article Synopsis
  • This study investigated the impact of velamentous cord insertion (VCI) on outcomes in twin pregnancies, revealing higher rates of VCI in monochorionic diamniotic (MCDA) twins compared to dichorionic (DC) twins.
  • Significant risk factors for VCI included the mother's body mass index and having MCDA twins, while assisted reproductive technology provided some protection against VCI.
  • In MCDA twins, VCI was linked to negative outcomes such as fetal growth restriction, twin-to-twin transfusion syndrome, and preterm birth, highlighting the importance of monitoring cord insertion during pregnancy.
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  • * Results showed that twin pregnancies had higher serum creatinine levels and lower estimated glomerular filtration rates (eGFR) compared to singleton pregnancies, with higher rates of renal dysfunction (7.9% for twins vs 2.6% for singletons).
  • * Key risk factors for maternal renal dysfunction included having twins, being a first-time mother (nulliparity), and having preeclampsia, but all cases of renal dysfunction in twin pregnancies improved postpartum.
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Purpose: To assess the impact of the interpregnancy interval (IPI) after cesarean delivery on the risks of adverse perinatal events during subsequent pregnancies.

Methods: We retrospectively examined perinatal outcomes of subsequent pregnancies of women whose most recent birth experience involved cesarean delivery at our hospital between January 2014 and December 2019. IPI was defined as the time between live birth and subsequent conception.

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Objective: The aim of this study was to examine the risk factors for antepartum hemorrhage (APH) in women with placenta previa.

Methods: In this retrospective cohort study, we analyzed the medical records of 233 women with singleton pregnancies presenting with placenta previa whose deliveries were performed at our hospital between January 2009 and July 2018.

Results: Of the 233 women included in this study, 130 (55.

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Objective: This study aimed to evaluate the success rate of vaginal delivery, the reasons for unplanned caesarean delivery, the rate of umbilical cord prolapse and the risk of umbilical cord prolapse in twin deliveries.

Design: Retrospective cohort study.

Setting: Single institution.

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Background: There are few studies developing a scoring system for short-term survival of patients with gynecologic malignancy.

Methods: Seventy-three terminally ill patients with gynecologic malignancy who were admitted to our palliative care unit (PCU) from June 2009 to February 2018 were included. We accumulated routine blood data within 3 months before PCU discharge.

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Objectives: We compared the pregnancy prolongation effect attributable to cervical cerclage to that achieved by conservative management, and determined the cervical length for which cervical cerclage is effective.

Methods: We retrospectively examined medical records of 281 women admitted to our hospital between January 2013 and December 2017 for management of threatened preterm birth at 22-28 weeks of gestation. Obstetricians determined suitability for cervical cerclage, which was performed using the McDonald procedure in all cases.

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Background: The aim of this study was to investigate how much the risks of recurrence and death are increased as a consequence of selecting fertility-sparing surgery (FSS) in young women with epithelial ovarian cancer (EOC).

Methods: After a central pathological review and search of the medical records from 14 collaborating hospitals, a non-randomized, observational cohort study was conducted between 1987 and 2015, including 1183 women with stage I EOC. Finally, a total of 285 patients with stage I EOC at reproductive age were recruited.

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  • Malignant ovarian neoplasm is one of the deadliest types of cancer affecting women's reproductive systems, often originating from other organs rather than the ovaries.
  • A study analyzed 4,284 patients between 1986 and 2015, identifying 143 cases (4.1%) of metastatic ovarian carcinoma (MOC), particularly from colorectal (43%) and gastric (29%) cancers.
  • Despite its low prevalence, awareness of MOC is important for clinicians in the context of ovarian cancer diagnosis and treatment.
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We examined the impact of the abruption severity and the onset-to-delivery time on the maternal and neonatal outcomes of cases of clinically diagnosed placental abruption (PA). We investigated 84 patients who were diagnosed with PA at our hospital from January 2009 to September 2017. We classified the patients with PA into three groups based on the extent of the abruption: (1) mild abruption, <20%; (2) moderate abruption, 20-49%; (3) severe abruption, ≥50%, which was defined by the attending obstetricians at the time of delivery.

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The objective of this study was to estimate the frequency of possible occult metastasis through long-term survival analyses in patients with clear cell carcinoma (CCC) who had undergone complete resection. During the period of 1990-2015, 799 patients with stage I-IV CCC were identified in the TOTSG database. Of these, a total of 528 patients without a residual tumor were enrolled in the study and classified into four groups: Group 1: FIGO stage IA-IB (N=104), Group 2: FIGO stage IC1 (N=170), Group 3: FIGO stage IC2/IC3 (N=98), and Group 4: FIGO stage II-III (no residual tumor: N=156).

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Management and treatment of stage I B1 cervical cancer during pregnancy depends on the estimated gestational age and personal desires. We report 4 cases of stage I B1 cervical cancer during pregnancy that were treated differently. Case 1: A 29- year-old woman, primipara, visited our hospital at 7 weeks' gestation.

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Aim: To assess whether FOXL2 p.C134W mutation may play a role in the development of human ovarian tumors in the Japanese, we investigated the FOXL2 codon 134 mutation and protein expression of inhibin-α, bone morphogenetic protein 2 (BMP2) and follistatin (FST) in Japanese patients with granulosa cell tumor (GCT) of the ovary and other ovarian tumors.

Methods: We analyzed 114 tumor tissues from ovarian tumors, including 44 adult-type and two juvenile-type GCT of the ovary and 68 ovarian tumors by DNA sequencing.

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The best treatment for recurrent granulosa cell tumor(GCT)is considered to be surgical resection, because the effects of chemotherapy or radiation on GCT are obscure. The common site of recurrence is the pelvic cavity, including the surface of the liver and intestine as tumor-dissemination-patterns. Between June 1988 and June 2011, we treated 15 patients with GCT at our hospital.

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Background: It is controversial whether patients with stage I ovarian clear cell carcinoma (CCC) benefit from postoperative chemotherapy. This study was designed to evaluate the postoperative outcomes associated with the inclusion or exclusion of adjuvant therapy in these patients.

Methods: A total of 185 patients who were treated for stage I CCC between 1991 and 2007 were retrospectively evaluated.

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Objective: We analyzed a large number of stage I clear cell carcinoma of the ovary (CCC) patients to estimate the survival impact of the capsule status in stage I CCC patients, particularly in comparison with non-CCC patients.

Methods: Clinicopathologic data on 564 patients with stage I epithelial ovarian cancer (EOC) collected under the central pathological review system were subjected to uni- and multivariable analyses to evaluate the disease-free survival (DFS) and overall survival (OS).

Results: There was no significant difference in both the OS and DFS of CCC patients between IA and IC(ir) (intraoperative capsule rupture) {IA vs.

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Objectives: The purpose of this study was to clarify the clinical outcome of patients with stage IA mucinous epithelial ovarian cancer (mEOC) treated with fertility-sparing surgery (FSS).

Methods: After a central pathological review and search of the medical records from multiple institutions, a total of 148 stage I mEOC patients were retrospectively evaluated in the current study. All mEOC patients were divided into three groups: group A (FSS; age, 40≥); groups B and C {radical surgery; age, 40≥ (B); 40< (C)}.

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Background: Residual tumor size after primary surgery is the most important prognostic factor in advanced ovarian cancer. We conducted a retrospective study in Japanese women to evaluate the association of various residual disease diameters and histological subtypes with overall survival (OS) in patients with residual disease ≥1 cm.

Methods: Demographic and clinicopathological data were obtained from the Tokai Ovarian Tumor Study Group; 294 patients with International Federation of Gynecology and Obstetrics stage III and IV epithelial ovarian carcinoma who had undergone primary debulking surgery between 1986 and 2007 and had ≥1 cm residual tumor were identified.

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We investigated the results of cervical cytology, pathology of colposcopic biopsy and surgical specimen among 765 women suspected to have cervical intraepithelial neoplasia (CIN). Significantly more patients with cervical cytology class III b than class III a were diagnosed in CIN grade 3 on colposcopic biopsy. The concordance rate of colposcopic biopsy and surgical specimen was 79.

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Background: In epithelial ovarian cancer (EOC), fertility-sparing surgery (FSS) has mainly been chosen for stage IA disease. The purpose of this study was to clarify the clinical outcome of patients with clear-cell carcinoma of the ovary (CCC) who would usually undergo radical surgery.

Cases: After a central pathological review and search of the medical records from multiple institutions between 1988 and 2005, a total of 10 CCC patients treated with FSS were retrospectively evaluated in the current study.

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Although paraaortic lymphadenectomy is one of the standard treatments for gynecological cancer in Japan, it is very invasive so one must examine its safety for patients. Paraaortic lymphadenectomy was performed in 215. Two hundred and fifteen gynecologic cancer patients at our hospital between January 1991 and August 2005.

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Neoadjuvant chemotherapy (NAC) with intra-arterial infusion was performed in the treatment for 53 patients with advanced cervical squamous cell carcinoma. After NAC with intra-arterial infusion of the anticancer agents including cisplatin via internal iliac artery or uterine artery, 42 patients received radical hysterectomy. The response to therapy was observed in 45 of all patients (84.

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