Publications by authors named "Hiroko Konno"

Article Synopsis
  • * Out of 272 twin pairs, the survival rates were very high, with 98% of at least one twin surviving and 85% for both, while 93% of recipient twins and 90% of donor twins survived.
  • * The research identifies preoperative anemia-polycythemia sequence and arterio-arterial vascular anastomosis (AAA) as significant risk factors for mortality in donor twins after FLP, although the exact mechanisms of AAA need further investigation.
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Article Synopsis
  • - This study reviews outcomes of fetuses with sacrococcygeal teratoma (SCT) based on different prenatal intervention methods: open fetal surgery, percutaneous intervention, or no intervention at all.
  • - The study found that survival rates were highest in patients who did not undergo surgery (71.0%), while open surgery had a 56.2% survival rate and percutaneous intervention had 45.8%.
  • - It concluded that gestational age at delivery impacts prognosis and highlights the importance of monitoring complications like polyhydramnios to avoid premature delivery, regardless of the intervention type.
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Case 1 presented with severe anemia and received an intrauterine blood cell transfusion at 33 weeks of gestation. The anemia spontaneously improved in early infancy. Case 2, the father of Case 1, had an uneventful birth with no evidence of anemia, though microcytic anemia was observed during childhood.

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Introduction: The incidence of single fetal demise in monochorionic diamniotic twin pregnancies is approximately 7.5%. In single fetal demise cases, the placental region of the demised fetus is almost infarcted or necrotic at the time of delivery.

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The role of superficial anastomoses in the survival of fetuses with twin-twin transfusion syndrome after fetoscopic laser photocoagulation is unknown. This study aimed to evaluate how superficial anastomoses affect the circulatory dynamics of both fetuses with twin-twin transfusion syndrome using ductus venous Doppler waveforms. We included all twin-twin transfusion syndrome (TTTS) patients who underwent fetoscopic laser photocoagulation in our institution from 2006 to 2019; fetal demise cases after fetoscopic laser photocoagulation were excluded.

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Twin reversed arterial perfusion (TRAP) sequence is a rare anomaly in 1% of monochorionic twin pregnancies. Few TRAP sequence cases have a rudimentary heart with cardiac motion in the acardiac twins. Herein, we investigated the venous Doppler waveform in two cases of TRAP sequence with a rudimentary heart with cardiac motion in the acardiac twin.

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Ultrasound determination of chorionicity in the first trimester has a high accuracy, but it is associated with some pitfalls. This report presents changes in ultrasound findings during a monochorionic pregnancy with chorionic membrane folding (CMF). The patient was a 32-year-old woman, gravida 2 para 0.

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Article Synopsis
  • * A retrospective review of TLH cases from 2012 to 2016 identified 11 instances of poor urine outflow, and the analysis revealed issues related to sutures that inadvertently involved surrounding tissue.
  • * The findings emphasize the importance of properly separating the bladder from the vaginal wall and being cautious with suturing techniques to prevent ureteral damage during TLH.
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Introduction And Importance: An unicornuate uterus with a non-communicating rudimentary horn (UUNCRH) is a very rare uterine malformation which is difficult to diagnose and to decide the surgical plan. We aim to describe the case of pediatric UUNCRH patient and our operative technique of laparoscopic intra-uterus indigo carmine injection (LIUICI) to confirm that the rudimentary horn (RH) is non-communicating before the resection and review the relevant literature to ascertain the most appropriate treatment option in these patients.

Case Presentation: A 11-year-old girl who developed progressive severe abdominal pain and dysmenorrhea was referred to our hospital.

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Dichorionic diamniotic (DCDA) twin pregnancies after single blastocyst embryo transfer have been reported recently, although a blastocyst ovum is generally believed to divide into monochorionic twin pregnancy. We investigated the incidence of DCDA twin pregnancy after single blastocyst embryo transfer and their zygosity. This prospective cohort study included 655 consecutive twin pregnancies that were managed from 2006 to 2014 at our institution.

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Background: Autologous epidural blood patch (AEBP) is effective for post-dural-puncture headache (PDPH). In some cases, repeat procedures are required for complete cure. In rare instances, severe adverse effects can occur.

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Ophthalmic viscosurgical devices (OVDs), mainly containing sodium hyaluronate (HA), are used in cataract surgeries to protect the cornea endothelium. In this study, the rheological properties of 9 launched products (containing 1% HA) were evaluated. The molecular weights (MWs) of HA estimated based on intrinsic viscosity varied widely, between 1100-2500 kDa, and showed a particular value for each product.

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Objective: We aimed to evaluate whether types of vascular anastomoses affect fetal demise (FD) in twin-twin transfusion syndrome (TTTS) after fetoscopic laser photocoagulation (FLP).

Methods: All TTTS patients who underwent FLP in our institution from 2005 to 2017 were included. We described vascular anastomoses during FLP as either arterio-arterial (AA), veno-venous (VV), or arterial-venous (AV), and abnormal fetal Doppler waveforms before FLP.

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Aim: We evaluated risk factors for birthweight discordance in monochorionic diamniotic (MCDA) twin pregnancies without twin-twin transfusion syndrome (TTTS).

Methods: We investigated all MCDA twin placentas injected with colored dye at our institution between 2007 and 2015. We excluded pairs of twins with TTTS, fetal demise, or severe fetal malformation.

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Purpose: This study aimed to investigate the risk factors for severe postpartum hemorrhage (PPH) and blood transfusion requirement that are recognizable during any period of pregnancy.

Materials And Methods: We retrospectively reviewed the medical data of 4829 pregnant women who received care and delivered at our institution between July 2010 and March 2015. The cohort was divided into patients with and without severe PPH.

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We describe a rare case of Mallory-Weiss tear with massive hematemesis at 38 weeks' gestation. A 35-year-old woman presented with epigastralgia followed by massive hematemesis. An emergency endoscopy indicated active pulsatile bleeding at the esophagocardial junction.

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