Faculty Profiles - MAKI Jota

Papers - MAKI Jota

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Diffuse myometrium thinning and placenta accreta spectrum in a patient with systemic lupus erythematosus (SLE): a case report and review of the literature. Reviewed International journal

Tomohiro Mitoma, Kei Hayata, Satomi Yokohata, Akiko Ohira, Chiaki Kashino, Satoe Kirino, Kazumasa Tani, Jota Maki, Eriko Eto, Hisashi Masuyama

BMC pregnancy and childbirth 22 ( 1 ) 535 - 535 2022.7

Language：English Publishing type：Research paper (scientific journal)

BACKGROUND: Cases of uterine wall thinning and placental abnormalities complicated with systemic lupus erythematosus (SLE) during pregnancy have been reported in Asian countries for ten years. Long-term steroid use can cause muscle degeneration, but the mechanism of myometrium thinning was not known. Through the review of published articles, this report is the first review of cases to discuss the pathogenesis and clinical features of thinned myometrium and placenta accreta spectrum (PAS) in pregnant patients with SLE. CASE PRESENTATION: A twenty-nine-year-old primigravida with a history of lupus enteritis and paralytic ileus had a natural conception after less than two years of steroid treatment. An ultrasonographic study showed a thin uterine wall with a widespread thick placenta on the entire surface of the uterine cavity in the third trimester. At the 39th gestational week, she underwent a cesarean section due to the failure of the uterus to contract, even though the injection of oxytocin. There were several engorged vessels on the surface of the anterior uterine wall at the time of laparotomy. We decided to perform a hysterectomy because diffuse PAS replaced her uterus. CONCLUSION: A review of reported cases and our case shows an unusual complication of SLE that might be related to the particular condition of the estrogen-mediated immune system. Clinicians should always pay attention to the possibility of uterine wall thinning as uterine atony and the structural abnormality of the placenta for SLE patients with the unscarred uterus.

DOI： 10.1186/s12884-022-04864-z

COVID-19 妊産婦緊急搬送補助システム"iPicss"を用いた救急隊との搬送連携/災害発生後やCOVID-19妊婦の連携体制の構築 Reviewed

牧尉太, 三苫智裕, 横畑理美, 三島桜子, 大平安希子, 谷和祐, 衛藤英理子, 早田桂, 増山寿

日本周産期・新生児医学会雑誌 57 ( 4 ) 826 - 828 2022.4

Obesity's Influence on Insulin Resistance in Pregnant Women with Polycystic Ovary Syndrome. Reviewed

Eriko Eto, Kazumasa Tani, Jota Maki, Kei Hayata, Hisashi Masuyama

Acta medica Okayama 76 ( 1 ) 51 - 56 2022.2

Language：English Publishing type：Research paper (scientific journal)

Polycystic ovary syndrome (PCOS) is a common endocrine metabolic disorder that is associated with high insulin resistance and obesity. However, ~70% of women with PCOS in Japan are non-obese. We retrospectively analyzed the cases of 163 Japanese women with PCOS who visited our Ob/Gyn department in 2006-2018 to determine which has a greater effect on insulin resistance: PCOS or obesity. We reviewed the women's medical records and calculated their insulin resistance and insulin secretion. The women's mean age and pre-pregnancy body mass index (BMI) were 30±5.8 years and 24.8±5.6 kg/m2, respectively; their mean ± SD fasting plasma glucose, 94.1±13.7 mg/dL; HOMA-IR, 2.1±2.0; QUICKI, 0.4±0.0; and HOMA-β, 108.9±88.0%. Sixtyeight women were pregnant, and 37% (n=25) were obese (BMI ≥ 25 kg/m2). Obesity had a greater effect on insulin resistance: fasting plasma glucose F(1, 53)=6.134, p<0.05; fasting insulin F(1, 53)=31.606, p<0.01; HOMA-IR F(1, 53)=31.670, p<0.01; QUICKI F(1, 53)=16.156, p<0.01. There was no significant difference in values other than QUICKI and testosterone between the women with and without PCOS. Obesity thus had a greater effect on increased insulin resistance in pregnant women with PCOS. Further studies of the insulin resistance of non-obese women with PCOS is needed, as non-obese women with PCOS are common in Asia.

DOI： 10.18926/AMO/63209

A case report of successful vaginal delivery in a patient with severe uterine prolapse and a review of the healing process of a cervical incision. Reviewed International journal

Jota Maki, Tomohiro Mitoma, Sakurako Mishima, Akiko Ohira, Kazumasa Tani, Eriko Eto, Kei Hayata, Hisashi Masuyama

Case reports in women's health 33 e00375 2022.1

Authorship：Lead author,　Corresponding author Language：English

Background: The incidence of severe uterine prolapse during childbirth is approximately 0.01%. Moreover, to the best of our knowledge, no reports detail the healing process of the cervix during uterine involution. This report describes successful vaginal delivery and the healing process of postpartum uterine prolapse and cervical tears in a patient with severe uterine prolapse. Case presentation: A patient in her 40s (gravida 3, para 1, abortus 1) with severe uterine prolapse successfully delivered a live female baby weighing 3190 g at 38 + 5 weeks of gestation by assisted vaginal delivery. Uterine prolapse had improved to approximately 2° by 2 months postoperatively. On postpartum day 4, during the healing process of cervical laceration, the thread loosened in a single layer of continuous sutures due to uterine involution, and poor wound healing was observed. The wound was subsequently re-sutured with a two-layer single ligation suture (Gambee suture + vertical mattress suture). However, on postpartum day 11, a large thread ball was hindering the healing of the muscle layer, which improved with re-suturing. Conclusion: Although vaginal delivery in a patient with severe uterine prolapse is possible in some cases, the cervix should be sutured, while considering cervical involution after delivery.

DOI： 10.1016/j.crwh.2021.e00375

EG-VEGF Induces Invasion of a Human Trophoblast Cell Line via PROKR2. Reviewed

Kazumasa Tani, Takashi Mitsui, Sakurako Mishima, Akiko Ohira, Jota Maki, Eriko Eto, Kei Hayata, Keiichiro Nakamura, Hisashi Masuyama

Acta medica Okayama 75 ( 6 ) 677 - 684 2021.12

Language：English Publishing type：Research paper (scientific journal)

Extravillous trophoblast (EVT) invasion is important for embryo implantation, placental development, and successful remodeling of the uterine spiral artery. Endocrine gland derived-vascular endothelial growth factor (EG-VEGF) and matrix metalloproteinases (MMPs) are implicated in EVT invasion; however, the high con-centrations found in pregnancy pathologies have not been investigated in non-tumor trophoblasts. The roles of EG-VEGF, prokineticin receptors (PROKR1/2), MMP-2, and MMP-9 in EVT invasion during spiral artery remodeling were evaluated using human EVT from HTR-8/SVneo cell lines. The expression of MMP-2, MMP-9, and mitogen-activated protein kinase (MAPK), and Akt pathways in HTR-8/SVneo cells treated with recom-binant EG-VEGF alongside anti-PROKR1 and/or anti-PROKR2 antibodies was evaluated using quantitative reverse transcription-PCR and western blotting. Wound-healing and cell invasion assays were performed to assess the migration and invasion of these treated cells. Interestingly, 20 nM EG-VEGF activated ERK1/2 sig-naling and upregulated MMP-2 and MMP-9. This effect was suppressed by anti-PROKR2 antibody via ERK1/2 downregulation. Anti-PROKR2 antibody inhibited the migration and invasion of EG-VEGF-stimulated HTR-8/SVneo cells. Elevated concentrations of EG-VEGF enhance EVT invasion in a human trophoblast cell line by upregulating MMP-2 and MMP-9 via PROKR2. These new insights into the regulation of epithelial cell invasion may help in developing therapeutic interventions for placental-related diseases during pregnancy.

DOI： 10.18926/AMO/62806

Non-Invasive Prenatal Genetic Testing (NIPT) Leading to Prenatal Diagnosis of Trisomy 21 Mosaicism and 18q Deletion Syndrome: Two Cases. Reviewed

Kei Hayata, Sakurako Mishima, Akiko Ohira, Kazumasa Tani, Jota Maki, Eriko Eto, Chikako Ogawa, Hisashi Masuyama

Acta medica Okayama 75 ( 6 ) 745 - 750 2021.12

Language：English

NIPT is non-definitive testing to estimate the possibility that fetuses have trisomy 21, trisomy 18, or trisomy 13. However, in NIPT-positive and indeterminate cases, rare chromosomal disease may become apparent, requiring advanced genetic considerations and counseling skills. We experienced two such cases, a trisomy 21 mosaicism case triggered by NIPT-positive status and 18q deletion syndrome triggered by NIPT-indeterminate status. These cases have two clinical implications for NIPT. First, it was revealed that trisomy mosaicism might be found in NIPT-positive cases that have lower Z-Scores than those inferred from the fraction of fetal cfDNA in the case of standard trisomy. Second, it is possible that microdeletion syndrome could be the reason for an indeterminate NIPT result. Today's genetic counseling requires more expertise in ethics and communication as well as genetic science because NIPT can lead to totally unexpected results.

DOI： 10.18926/AMO/62816

治療に難渋した巨大子宮筋腫に対する筋腫核出術 Reviewed

川西貴之, 石原剛, 藤原晴菜, 牧尉太, 平松祐司, 増山寿

現代産婦人科 70 ( 1 ) 215 - 219 2021.12

Language：Japanese Publisher：中国四国産科婦人科学会

子宮筋腫は婦人科の日常診療において最も遭遇する頻度の高い疾患ではあるが、近年婦人科検診の普及により巨大子宮筋腫を診る機会は稀となってきている。本邦において巨大子宮筋腫の定義は一定していないが3kgを超える巨大子宮筋腫に対する子宮筋腫核出術の報告例は散見される程度である。今回我々が報告するのは、4kgを超える巨大子宮筋腫を有し、妊孕性温存を切望する女性患者に対して、本人と家族へ十分に説明を行い、手術操作の対策を慎重に熟考した上で、子宮筋腫核出術を施行した症例である。最終的には子宮を温存することができたが、初回手術後に重度の腹腔内出血と出血性貧血、開腹止血術、腸閉塞、開腹腸切除術といった合併症を来し、長期療養を要する結果となった。本稿では、本症で生じた周術期合併症を避けるために反省すべき点を考察するとともに、可能な限り早期に受診することや手術が安全に施行できる時期に医療介入することがいかに重要かについて論じる。(著者抄録)

Other Link： https://search-tp.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2021&ichushi_jid=J05038&link_issn=&doc_id=20211220410039&doc_link_id=%2Fcv0mtrob%2F2021%2F007001%2F039%2F0215-0219%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fcv0mtrob%2F2021%2F007001%2F039%2F0215-0219%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

妊娠糖尿病・糖尿病合併妊娠のマネジメント血糖コントロールと助産ケア　最新ガイド Invited Reviewed

牧尉太

ぺリネイタル・ケア 40 ( 11 ) 2021.11

Clinical Course of 60 Cesarean Scar Pregnancies.

Takashi Mitsui, Sakurako Mishima, Kazumasa Tani, Jota Maki, Eriko Eto, Kei Hayata, Hisashi Masuyama

Acta medica Okayama 75 ( 4 ) 439 - 445 2021.8

Language：English Publishing type：Research paper (scientific journal)

Early diagnosis and therapy are important in a cesarean scar pregnancy (CSP), which can cause uterine rupture with resultant massive bleeding. However, there are some reports of CSPs continued to term. The optimal management of CSPs remains unclear; therefore, we investigated the clinical courses of CSPs diagnosed and treated at perinatal institutions in the Chugoku and Shikoku regions of Japan. We enrolled 60 women diag-nosed with CSP at 21 institutions from January 2006 to December 2015. Of the 60 women diagnosed with CSP, 57 were treated. Pregnancy was terminated in 48 women and continued in 9. Thirteen women underwent transabdominal hysterectomy; they experienced no postoperative complications or allogeneic blood transfu-sion. Nine women received therapies such as dilation and curettage, and 26 received non-surgical therapies such as methotrexate and topical administration of potassium chloride. Among 9 women who chose to con-tinue with their CSP, 7 successfully delivered newborns, 2 had uterine ruptures in the second trimester, and all women required transabdominal hysterectomy. Diagnosis and therapy in the first trimester of pregnancy are important in the management strategy of a CSP. When continuing a CSP, the risk of uterine rupture and trans-abdominal hysterectomy must be considered.

DOI： 10.18926/AMO/62395

High-Dose Corticosteroids for a Pregnant Woman Critically Ill With Coronavirus Disease 2019. Reviewed International journal

Koichiro Yamamoto, Hideharu Hagiya, Jota Maki, Shuji Okahara, Kou Hasegawa, Fumio Otsuka

Cureus 13 ( 8 ) e17398 2021.8

Language：English

Pregnancy was reported to be a risk factor for coronavirus disease 2019 (COVID-19), with an increased risk for premature birth. Corticosteroids and remdesivir are used for patients with COVID-19; however, there is no established treatment for these patients. In particular, the effective management of pregnant, critically ill patients with COVID-19 remains unknown. We describe a 34-year-old, critically ill woman at 30 weeks of gestation with COVID-19, who was successfully treated with remdesivir and combined high-dose betamethasone (12 mg/day for two days) and methylprednisolone (125 mg/day for three days) followed by steroid tapering. During treatment, fetal biophysical profile scores on obstetric ultrasound were normal; her pregnancy course progressed well. Since high-dose corticosteroids improve fetal lung maturation and as well as cytokine storm due to COVID-19, this case provides an insight into the management of pregnant COVID-19 patients.

DOI： 10.7759/cureus.17398

The Spiral Trial: A multicenter, randomized, controlled trial of Spiral thread sutures versus conventional thread sutures to prevent thinning of uterine scars following elective cesarean section. Reviewed International journal

Jota Maki, Hikari Nakatou, Kazumasa Tani, Eriko Eto, Kei Hayata, Dan Yamamoto, Kenji Kai, Takashi Tamada, Kazuyo Akamatsu, Kunihiro Kawanishi, Keiichiro Nakamura, Hisashi Masuyama

Contemporary clinical trials 107 106449 - 106449 2021.8

Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

BACKGROUND: The aim of this randomized controlled trial (RCT) is to investigate whether Spiral-thread sutures are superior to conventional sutures (0-Vicryl) for preventing uterine scar thinning following elective cesarean section. METHODS: This multicenter, parallel-group RCT will be conducted in four hospitals across three medical regions in Japan to assess 200 women (≥20 years old) with singleton pregnancies who are scheduled to undergo cesarean sections. Eligible women will be randomly assigned (1:1 ratio) to receive either the conventional uterine suture continuous absorption thread, which is most commonly used in Japan, or the Spiral thread. The primary endpoint is the degree of scar thinning, measured by transvaginal ultrasonography 6-7 months postoperatively, to evaluate the position of the uterus (anterior or posterior tilt) and myometrial wound thickness. The degree of thinning will be compared between the groups, and four measurements (mm) of the thinning area, including caudal distance, depth of the depression, remaining thickness of the myometrium on the serous side of the most depressed area, and width of the depression, will be recorded in the sagittal view on transvaginal ultrasound. Secondary endpoints will include total operative time, suture application time (from birth to the end of uterine suturing), operative blood loss, number of additional Z-sutures or continuous sutures required to stop bleeding, maternal abnormality frequency (surgical complications and postoperative infections), surgeon's years of experience, and clinical interpretation of individual subscale scores. DISCUSSION: This study shall provide important evidence on the optimal suture for preventing hysterotomy wound thinning after the first cesarean section. TRIAL REGISTRATION: National Institute of Public Health, Japan: jRCT1062200001 (May 7, 2020; https://rctportal.niph.go.jp/en/detail?trial_id=jRCT1062200001) and Okayama University Certified Review Board: CRB6180001 (April 9, 2020, version 3.0).

DOI： 10.1016/j.cct.2021.106449

院内死戦期帝王切開と院外死戦期帝王切開の最近の症例(Recent cases of in-hospital perimortem cesarean delivery and out-of-hospital perimortem cesarean delivery)

Hayata Kei, Mishima Sakurako, Oohira Akiko, Tani Kazumasa, Maki Jota, Eto Eriko, Masuyama Hisashi

The Journal of Obstetrics and Gynaecology Research 47 ( 8 ) 2920 - 2920 2021.8

hCG values and gestational sac size as indicators of successful systemic methotrexate treatment in cesarean scar pregnancy. Reviewed International journal

Takashi Mitsui, Sakurako Mishima, Akiko Ohira, Kazumasa Tani, Jota Maki, Eriko Eto, Kei Hayata, Hisashi Masuyama

Taiwanese journal of obstetrics & gynecology 60 ( 3 ) 454 - 457 2021.5

Language：English Publishing type：Research paper (scientific journal)

OBJECTIVE: To retrospectively investigate cesarean scar pregnancy (CSP) patients who received systemic methotrexate (MTX) and to clarify the criteria for administering systemic MTX to CSP patients. MATERIALS AND METHODS: Fifteen CSP patients who were initially treated with systemic MTX (50 mg/m2/week) were included. Nine patients, who needed a uterine artery embolization (UAE) or a laparotomy, including a transabdominal hysterectomy (TAH), were defined as the unsuccessful MTX group. Six patients who did not require UAE or a laparotomy were defined as the successful MTX group. Furthermore, the hCG cut-off value and the GS cut-off size at the time of CSP diagnosis, which differentiated successful and unsuccessful patients, were defined. MTX success rates were investigated by combining the hCG and gestational sac (GS) size cut-off values. RESULTS: The hCG cut-off value was 17757.0 mIU/mL, and the GS cut-off size was 10.4 mm. In patients with hCG values less than 17757.0 mIU/mL, the MTX success rate was 75.0%. Fewer patients needed UAE or a laparotomy compared to patients with hCG values higher than 17757.0 mIU/mL (P = 0.007). In patients with a GS size less than 10.4 mm, the MTX success rate was 80.0%. Fewer patients among them needed UAE or a laparotomy compared to those among patients with a GS size greater than 10.4 mm (P = 0.089). In patients with hCG values and GS sizes lower than the cut-off values, the MTX success rate was 80.0%. Fewer patients among them needed UAE or a laparotomy compared to those among patients with hCG values and/or GS sizes higher than the cut-off values, respectively (P = 0.010). CONCLUSION: Patients with hCG values less than 17757.0 mIU/mL and GS sizes less than 10.4 mm may have a greater chance of successful systemic MTX treatment when it is used as the first line of treatment for CSP.

DOI： 10.1016/j.tjog.2021.03.011

Renal capsular vein thrombosis. Reviewed

Katsuyuki Tanabe, Jota Maki, Hikari Nakatou

Clinical and experimental nephrology 25 ( 4 ) 439 - 440 2021.4

Language：English Publishing type：Research paper (scientific journal)

A 30-year-old pregnant woman developed postpartum HELLP syndrome. Abdominal computed tomography revealed a high-density vessel structure in contact with the right kidney and connected to the right ovarian vein, suggesting thrombosis in the right inferior renal capsular vein (RCV). RCV thrombosis is a rare thrombotic disorder in postpartum women, and hypercoagulability related to the pregnancy complications may be the predisposing factor. The potential risk for pulmonary embolism in the rare pregnancy-related thrombosis should be recognized.

DOI： 10.1007/s10157-020-01998-2

【助産力アップ!周産期のガイドライン深掘りドリル200問『産婦人科診療ガイドライン:産科編2020』に準拠難易度別助産ケア&最新エビデンスが満載!】(第1章)妊娠期妊娠糖尿病『妊婦の糖代謝異常診療・管理マニュアル』より出題 Reviewed

牧尉太, 増山寿

ペリネイタルケア ( 2021新春増刊 ) 89 - 102 2021.1

治療に難渋した巨大子宮筋腫に対する筋腫核出術 Reviewed

川西貴之, 石原剛, 藤原晴菜, 牧尉太, 平松祐司, 増山寿

現代産婦人科 70 ( 1 ) 381 - 385 2021

The assessment of the fetal heart function using two-dimensional speckle tracking with a high frame rate. Reviewed International journal

Akiko Ohira, Kei Hayata, Sakurako Mishima, Kazumasa Tani, Jota Maki, Takashi Mitsui, Eriko Eto, Hisashi Masuyama

Early human development 151 105160 - 105160 2020.12

Language：English Publishing type：Research paper (scientific journal)

BACKGROUND: Two-dimensional (2D) speckle tracking echography (STE) is a new diagnostic modality that allows for the assessment of myocardial deformation. The present study assessed the feasibility of fetal 2D-STE at a high frame rate and determined the reference values for left ventricular (LV)- and right ventricular (RV)- global longitudinal strain (GLS). METHODS: In this prospective study, 109 fetuses with gestational ages ranging from 18 to 38 weeks underwent 2D echocardiography between August 2018 and December 2019. All recordings were performed using the Aplio i800 (CANON Medical Systems Corporation, Tochigi, Japan) and a convex probe (4 MHz) for fetuses. RESULTS: Longitudinal peak systolic strain measurements were obtained in 98 of 109 healthy fetuses (90%). All ultrasound videos were recorded with a median frame rate of 172 (range, 100-274) frames/s. The LV-GLS was almost constant, regardless of the number of weeks since the second trimester (r = -0.0087, p = ns). The RV-GLS decreased significantly with gestational age (r = 0.39, p < 0.01). CONCLUSIONS: STE may be useful for quantifying the systolic myocardial function in a fetus.

DOI： 10.1016/j.earlhumdev.2020.105160

妊娠性エプーリスからの大量出血で母体管理のため帝王切開を選択した一例 Reviewed

白河伸介, 牧尉太, 三島桜子, 大平安希子, 谷和祐, 玉田祥子, 光井崇, 衛藤英理子, 早田桂, 増山寿

現代産婦人科 68 ( 2 ) 139 - 143 2020.6

Authorship：Corresponding author Language：Japanese Publisher：中国四国産科婦人科学会

今回、我々は妊娠性エプーリスが急性増悪し、口腔内大量出血をきたしたため、耳鼻咽喉科による姑息的な止血手術を一時的に施行した。その後、母体管理のために選択的帝王切開術を施行した一例を経験した。【症例】19歳、女性。1妊0産。自然妊娠成立し妊娠11週に近医受診。同時期に歯肉腫脹を自覚した。近医歯科で歯肉炎と診断され、終診となっていた。妊娠25週に歯肉腫脹が増悪し、当院口腔外科を紹介受診となった。当院口腔外科にて腫脹箇所の切除の選択肢も提示されたが希望されず、経過観察の方針となった。妊娠35週0日、歯肉腫脹の増悪と持続的な強出血を認め、止血困難で救急搬送となった。来院時ショックバイタルであり、右下5舌側歯肉臼後部から動脈性の出血を認めた。病変は3cm程度で臨床所見から妊娠性エプーリスを疑った。緊急腫瘍摘出術を施行し止血は得られたが、根治手術は難しく姑息的手術となった。ICU入室後、再出血を認めず経過した。病変の再出血時は止血困難となる可能性を考慮し、早期の妊娠終了を協議の上決定し、妊娠35週4日に選択的帝王切開術を施行した。女児、2308g、アプガースコア9点/9点(1分/5分)の生児を得た。術後口腔内出血を認めず、残存腫脹は消退し産後9日目に退院した。【結語】妊娠性エプーリスは妊婦の1%程度に認め、その程度・出現時期・形態は多岐に渡る。本例では母体適応で35週の帝王切開術の方針としたが、分娩後は自然に縮小・消失することが特徴で正期産まで経過観察する選択肢も上げられる。母児両方の状態を考慮し治療方針を決定する必要性がある。(著者抄録)

【妊娠糖尿病の理解を深めよう】持続血糖測定を用いた血糖測定の実際 Reviewed

増山寿, 牧尉太

産科と婦人科 87 ( 5 ) 577 - 584 2020.5

Authorship：Last author Language：Japanese Publisher：(株)診断と治療社

インスリン療法中の患者の血糖変動は大きく、血糖自己測定を行わない時間帯の血糖値および、血糖変動傾向などの把握が困難で高血糖や低血糖に対する事前の対策の困難さが臨床的な問題である。持続血糖測定(CGM)は、昨今見過ごされていた高血糖や低血糖などの血糖変動を視覚化でき、とりわけ妊娠期間中はCGMを用いると母体の血糖変動が改善し、母児の周産期合併症の発症リスクも減少させることが報告されている。本稿では持続血糖測定とデータの見方、今後の見通しについて解説する。(著者抄録)

Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2020&ichushi_jid=J00525&link_issn=&doc_id=20200511100015&doc_link_id=%2Fae4sanke%2F2020%2F008705%2F016%2F0577-0584%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fae4sanke%2F2020%2F008705%2F016%2F0577-0584%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Pregnancy with Fontan circulation: A report of case series in Japan. Reviewed

Eriko Eto, Jota Maki, Teiji Akagi, Hiroshi Ito, Hisashi Masuyama

Journal of cardiology cases 21 ( 4 ) 161 - 163 2020.4

Language：English

Owing to new surgical procedures and medications, more women who have undergone the Fontan procedure reach childbearing ages. We report five cases of pregnancy with Fontan circulation. Case 1 had subchorionic hematoma (SCH), fetal growth restriction (FGR), and preterm labor (PTL). She delivered a 1073 g infant via cesarean section at gestation week 28 because of hemorrhagic shock. Case 2 delivered 2142 g and 2232 g infants at gestation weeks 37 and 36, respectively. She had FGR, PTL, and postpartum hemorrhage (PPH). Case 3 had SCH, PTL, and heart failure. At 36 weeks, labor was induced and she delivered a 2546 g infant by vacuum extraction with epidural analgesia. Cases 4 and 5 resulted in miscarriage. All subjects experienced obstetrical complications. This report discusses pregnant women with Fontan circulation by focusing on affected Japanese women. <Learning objective: More women who have undergone the Fontan procedure reach childbearing ages due to the new surgical procedures and medications. We report five cases and all of them experienced obstetrical complications. Anticoagulation might be one of the causes of postpartum hemorrhage. Labor epidural analgesia could contribute to minimized dynamic circulatory changes during labor. This report can be the literature regarding pregnant women with Fontan circulation in Japan.>.

DOI： 10.1016/j.jccase.2019.12.005

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