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Author Satoshi Masutani

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Steroid-Refractory Protein-Losing Enteropathy with Gastrointestinal Bleeding in a Patient with Fontan Circulation.

Yoichi Iwamoto, Shun Matsumura, Hirotaka Ishido, Hideaki Senzaki, Satoshi Masutani,

Protein-losing enteropathy (PLE) is one of the major complications after a Fontan operation. Some PLE patients suffer from concurrent gastrointestinal bleeding. An effective treatment regimen for such patients has not been established yet. Further, it remains unknown whether PLE and gastrointestinal bleeding coexist independently, or protein losing is associated with ... Read more >>

Int Heart J (International heart journal)
[2020, 61(4):851-855]

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Safety and Feasibility of Intravenous Paracetamol for Patent Ductus Arteriosus in Indomethacin-/Ibuprofen-Resistant or -Contraindicated Preterm Infants: A Case Series.

Ayumi Oshima, Shun Matsumura, Ayaka Iwatani, Machiko Morita, Sumie Fujinuma, Yukiko Motojima, Kosuke Tanaka, Satoshi Masutani, Kazuhiko Kabe, Keiko Ueda, Fumihiko Namba,

Background  Although indomethacin and ibuprofen are the standard treatments for hemodynamically significant patent ductus arteriosus (hsPDA), they are associated with renal impairment and gastrointestinal complications. Paracetamol for hsPDA closure does not provoke a peripheral vasoconstrictive effect and seems to have effects similar to those of indomethacin and ibuprofen. We have ... Read more >>

AJP Rep (AJP reports)
[2020, 10(1):e49-e53]

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Postnatal Amelioration of Fetal Right Ventricular Hypoplasia Associated with Large Eustachian Valve: A Case Report.

Ayaka Iwatani, Fumihito Miyake, Hirotaka Ishido, Masayo Kanai, Akio Ishiguro, Yoichi Iwamoto, Kazuhiko Kabe, Satoshi Masutani,

In fetuses, the Eustachian valve directs oxygenated blood returning from the inferior vena cava into the left atrium via the foramen ovale. If too large, the Eustachian valve can restrict right ventricular inflow, as well as induce postnatal cyanosis via an interatrial right-to-left shunt. We report a fetal case of ... Read more >>

AJP Rep (AJP reports)
[2019, 9(4):e357-e360]

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Isolated abdominal aortic tortuosity diagnosed by fetal echocardiography.

Hirotaka Ishido, Kazunori Baba, Saki Maeda, Hiromi Doi, Yoichi Iwamoto, Hideaki Senzaki, Satoshi Masutani,

J Echocardiogr (Journal of echocardiography)
[2019, :]

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Modified underlying cardiac disease severity in twin-twin transfusion syndrome.

Hirotaka Ishido, Satoshi Masutani, Yukiko Mikami, Kazunori Baba, Michitaka Fuse, Keiko Mizuta, Risa Tanaka, Kenji Sugamoto, Yoichi Iwamoto, Hideaki Senzaki,

Twin-twin transfusion syndrome or related conditions affect fetal loading. We report monochorionic-diamniotic twins. Twin 1 had Ebstein anomaly with mild tricuspid regurgitation (TR) and slightly thickened tricuspid valve leaflets with plastering. Twin 2 had tricuspid valve dysplasia (with abnormal thickening but without plastering) with moderate TR and mild right atrial ... Read more >>

Ann Pediatr Cardiol (Annals of pediatric cardiology)
[2019, 12(3):336-338]

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Improvement in Dyssynchrony with Pharmacological Ablation of Right-Sided Accessory Pathway-Induced Cardiomyopathy in Infants.

Mai Sekine, Satoshi Masutani, Tomohiko Imamura, Yoichi Iwamoto, Shota Muraji, Shigeki Yoshiba, Hirotaka Ishido, Naokata Sumitomo,

Right-sided accessary pathways in patients with Wolff-Parkinson-White (WPW) syndrome may cause cardiac dyssynchrony and dilated cardiomyopathy, with a characteristic septal shape, irrespective of any supraventricular tachycardia episodes. We report on two infants (13 and 5 months), whose right-sided accessary pathway-induced dilated cardiomyopathy was successfully treated by flecainide for the first ... Read more >>

Int Heart J (International heart journal)
[2019, 60(5):1201-1205]

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Two Extremely Low Birth Weight Infants Who Survived Functional Pulmonary Atresia with Normal Intracardiac Anatomy.

Shuntaro Oka, Utako Kondo, Ayumi Oshima, Shun Matsumura, Masayo Kanai, Akio Ishiguro, Yoichi Iwamoto, Hirotaka Ishido, Isaku Omori, Satoshi Masutani,

For the first time, we report about two extremely low birth weight infants who were born at 25 and 22 weeks' gestation and who survived functional pulmonary atresia (fPA) with normal intracardiac anatomy. A slow, reflected, and bimodal blood flow pattern in the pulmonary artery (both cases) and the presence ... Read more >>

AJP Rep (AJP reports)
[2019, 9(3):e310-e314]

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First Report of Fatal Secondary Abdominal Compartment Syndrome Induced by Intestinal Gas Accumulation without Organic Occlusive Intestinal Lesion in a Child with Sepsis.

Ryuta Itakura, Natsuko Takayanagi, Shingo Kobayashi, Yoshio Sakurai, Yoichi Iwamoto, Hirotaka Ishido, Koichi Moriwaki, Jun-Ichi Tamaru, Satoshi Masutani,

BACKGROUND Abdominal compartment syndrome (ACS), characterized by an increased intra-abdominal pressure and new-onset organ dysfunction, is a critical and potentially fatal condition, with no case of ACS caused by intestinal gas without intestinal lesion being reported to date. CASE REPORT A 2-year-old girl with a chromosomal abnormality of 1p36 deletion ... Read more >>

Am J Case Rep (The American journal of case reports)
[2019, 20:1011-1015]

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Blood reservoir function in patients with Fontan circulation and asplenia syndrome.

Michitaka Fuse, Kenji Sugamoto, Seiko Kuwata, Rika Sekiya, Kohei Kawada, Miku Toki, Masahiro Kaneko, Yoichi Iwamoto, Hirotaka Ishido, Satoshi Masutani, Manabu Kenmochi, Hirofumi Saiki, Hideaki Senzaki,

Splanchnic circulation constitutes a major portion of the vasculature capacitance and plays an important role in maintaining blood perfusion. Because patients with asplenia syndrome lack this vascular bed as a blood reservoir, they may have a unique blood volume and distribution, which may be related to their vulnerability to the ... Read more >>

Cardiol Young (Cardiology in the young)
[2019, 29(8):1016-1019]

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What echocardiographic indices are predictive of patent ductus arteriosus surgical closure in early preterm infants? A prospective multicenter cohort study.

Katsuaki Toyoshima, Tetsuya Isayama, Tohru Kobayashi, Chemin Su, Masashi Mikami, Takehiko Yokoyama, Hiroko Iwami, Hiroyuki Nagasawa, Hidenori Kawasaki, Shoichiro Amari, Atsushi Nakayama, Toshifumi Ikeda, Naoko Okada, Yutaka Yamamoto, Satoshi Masutani, ,

BACKGROUND:No echocardiographic indices for predicting the need for preterm patent ductus arteriosus (PDA) surgery have been tested with an adequate sample size. We tested the hypothesis that some echocardiographic indices have better predictive ability for the need for PDA surgery. METHODS:We prospectively collected data from infants with gestational ages between ... Read more >>

J Cardiol (Journal of cardiology)
[2019, 74(6):512-518]

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Activin A - A Potentially Useful Biomarker of Diastolic Dysfunction.

Satoshi Masutani,

Circ. J. (Circulation journal : official journal of the Japanese Circulation Society)
[2019, 83(7):1443-1445]

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Case of Incomplete Kawasaki Disease with No Symptoms Except Fever Causing the Development of Coronary Aneurysm.

Yuta Uchida, Yoichi Iwamoto, Yasuko Urushihara, Michiaki Nagura, Risa Tanaka, Hiroshi Arakawa, Hirotaka Ishido, Koichi Moriwaki, Satoshi Masutani,

Incomplete Kawasaki disease (iKD), which does not satisfy the standard KD diagnostic criteria because the required number of principal symptoms is not met, sometimes causes coronary aneurysms. Here we report the case of a patient with iKD who presented with only one principal symptom that resulted in the development of ... Read more >>

Int Heart J (International heart journal)
[2019, 60(4):1006-1008]

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Fenestration in the Fontan circulation as a strategy for chronic cardioprotection.

Hirofumi Saiki, Seiko Kuwata, Yoichi Iwamoto, Hirotaka Ishido, Mio Taketazu, Satoshi Masutani, Takashi Nishida, Hideaki Senzaki,

BACKGROUND:Fenestration in the Fontan circulation potentially liberates patients from factors leading to cardiovascular remodelling, through stable haemodynamics with attenuated venous congestion. We hypothesised that a fenestrated Fontan procedure would possess chronic haemodynamic advantages beyond the preload preservation. METHODS:We enrolled 35 patients with fenestrated Fontan with a constructed pressure-volume relationship under ... Read more >>

Heart (Heart (British Cardiac Society))
[2019, 105(16):1266-1272]

Cited: 1 time

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Thyroid Function in Patients With a Fontan Circulation.

Seiko Kuwata, Manabu Takanashi, Megumi Hashimoto, Yoichi Iwamoto, Hirotaka Ishido, Satoshi Masutani, Hirofumi Saiki, Kenji Sugamoto, Hideaki Senzaki,

In this study, we tested our hypothesis that thyroid function is impaired and contributes to perturbed hemodynamics in patients after Fontan operation. Cardiac catheterization and blood tests for thyroid function were performed in 37 patients who underwent a Fontan operation. Among them, 12 patients (33%) had subclinical thyroid dysfunction with ... Read more >>

Am. J. Cardiol. (The American Journal of Cardiology)
[2019, 123(6):979-983]

Cited: 1 time

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First Pediatric Case of Infective Endocarditis Caused by Serratia Liquefaciens.

Taichi Momose, Satoshi Masutani, Ayumi Oshima, Hidenori Kawasaki, Risa Tanaka, Yoichi Iwamoto, Hirotaka Ishido, Hideaki Senzaki,

Infective endocarditis (IE) caused by Serratia liquefaciens has been reported in only 2 adults. We experienced the first pediatric (neonatal) case of IE caused by S. liquefaciens, with mitral valve vegetation 4 days after a palliative heart surgery. This report underscores the importance of treating for both gram-positive and gram-negative ... Read more >>

Int Heart J (International heart journal)
[2018, 59(6):1485-1487]

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M-mode Diagnosis of Tachyarrhythmia Can be Erroneous Owing to "Pseudo 1:1 Atrioventricular Movement" of the Atrial Wall Adjacent to the Atrioventricular Valve Possibly due to Atrioventricular Constraint: A Case of Neonatal Atrial Flutter With 2:1 Atrioventricular Conduction.

Akiko Kawano, Ayumi Oshima, Satoshi Masutani, Akio Ishiguro, Yoichi Iwamoto, Hirotaka Ishido, Mio Taketazu, Hideaki Senzaki,

M-mode echocardiography has been playing an important role in the diagnosis of fetal tachyarrhythmia. We recently encountered a neonatal case of atrial flutter with 2:1 atrioventricular conduction. However, M-mode erroneously indicated 1:1 atrioventricular movement. While the movement of the atrial wall far from the atrioventricular valve was much faster than ... Read more >>

Clin Med Insights Cardiol (Clinical Medicine Insights. Cardiology)
[2018, 12:1179546818771700]

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Spontaneous regression of severe aortic coarctation in trisomy 18.

Shun Matsumura, Satoshi Masutani, Hideaki Senzaki,

Spontaneous regression of severe aortic coarctation with ductus dependency has not been reported. We experienced a case of trisomy 18 with spontaneous regression of severe aortic coarctation complicated by ventricular septal defect and patent ductus arteriosus. The aortic isthmus diameter was 1.2 mm at birth. After 5 months, it increased ... Read more >>

Cardiol Young (Cardiology in the young)
[2018, 28(5):771-772]

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Cardiac Ventricular Contractile Responses to Chronically Increased Afterload Secondary to Right Ventricular Outflow Obstruction in Patients With Tetralogy of Fallot.

Kenji Sugamoto, Clara Kurishima, Yoichi Iwamoto, Hirotaka Ishido, Satoshi Masutani, Hiroya Ushinohama, Koichi Sagawa, Shiro Ishikawa, Toshihide Nakano, Hideaki Kado, Hideaki Senzaki,

We examined the adaptive mechanism of the pulmonary ventricle (PV) in response to increased afterload secondary to pulmonary stenosis in tetralogy of Fallot (TOF, n = 47) and congenitally corrected transposition of the great arteries (cCTGA, n = 18), where the PV is morphologically different. We also elucidated the effects of such adaptation on ... Read more >>

Am. J. Cardiol. (The American Journal of Cardiology)
[2018, 121(9):1090-1093]

Cited: 1 time

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Importance of dynamic central venous pressure in Fontan circulation.

JeongHye Kim, Seiko Kuwata, Clara Kurishima, Yoichi Iwamoto, Hirotaka Ishido, Satoshi Masutani, Hideaki Senzaki,

We tested our hypotheses that central venous pressure (CVP) shows an excessive increase in response to volume overload in Fontan circulation according to the extent of the reduction in venous capacitance (Cv), and that the maximum CVP after volume loading is associated with hepatic congestion. Changes in CVP after angiography ... Read more >>

Heart Vessels (Heart and vessels)
[2018, 33(6):664-670]

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Low-Dose Intravenous Paracetamol for Patent Ductus Arteriosus in Indomethacin-Resistant or Contraindicated Preterm Infants: Three Cases Reports.

Shun Matsumura, Ayumi Oshima, Sumie Fujinuma, Kosuke Tanaka, Nobuhiko Nagano, Fuyu Miyake, Satoshi Masutani, Masanori Tamura, Keiko Ueda, Fumihiko Namba,

Background  Although indomethacin (IND) is the standard treatment for hemodynamically significant patent ductus arteriosus (hsPDA) in Japan, it may be associated with renal impairment and gastrointestinal complications. The use of paracetamol for hsPDA closure has recently increased. Unlike IND, paracetamol does not have a peripheral vasoconstrictive effect and can be ... Read more >>

AJP Rep (AJP reports)
[2017, 7(4):e230-e233]

Cited: 1 time

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Effects of home prothrombin international ratio (PT-INR) management in children with mechanical prosthetic valves - Importance of individual correlations between laboratory and CoaguChek device PT-INRs.

Naomi Ino, Satoshi Masutani, Shoyo Tanikawa, Yoichi Iwamoto, Hirofumi Saiki, Hirotaka Ishido, Masanori Tamura, Hideaki Senzaki,

Warfarin administration is essential but requires difficult management and frequent clinic visits in patients with mechanical prosthetic atrioventricular valve replacement (MPAVVR). This study investigated how home prothrombin international ratio (PT-INR) monitoring with CoaguChek® (Roche Diagnostics, Basel, Switzerland) safely reduced clinic visits in children with MPAVVR. We also compared individual correlations ... Read more >>

J Cardiol (Journal of cardiology)
[2018, 71(2):187-191]

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Multiple variations of the cerebral arteries associated with tetralogy of Fallot: a case report.

Akira Uchino, Naoko Saito, Eito Kozawa, Satoshi Masutani,

Tetralogy of Fallot (TOF) can be associated with vascular malformations or variations, especially of the aortic arch or supracardiac major venous systems. We report its association with an extremely rare combination of three such variations of the cerebral arteries-a right persistent hypoglossal artery, an extremely rare left carotid-right anterior cerebral ... Read more >>

Surg Radiol Anat (Surgical and radiologic anatomy : SRA)
[2017, 39(10):1161-1164]

Cited: 2 times

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Assessment of central venous physiology of Fontan circulation using peripheral venous pressure.

Satoshi Masutani, Clara Kurishima, Akiko Yana, Seiko Kuwata, Yoichi Iwamoto, Hirofumi Saiki, Hirotaka Ishido, Hideaki Senzaki,

OBJECTIVE:Elevated central venous pressure is a major cause of morbidity and mortality after the Fontan operation. The difference between mean circulatory filling pressure and central venous pressure, a driving force of venous return, is important in determining dynamic changes in central venous pressure in response to changes in ventricular properties ... Read more >>

J. Thorac. Cardiovasc. Surg. (The Journal of Thoracic and Cardiovascular Surgery)
[2017, 153(4):912-920]

Cited: 3 times

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A 1-year-old boy with long pauses caused by paroxysmal atrioventricular block and sinus arrest: Vagal reflex and effect of pacing.

Sayaka Sakazaki, Satoshi Masutani, Yoichi Iwamoto, Yoshitaka Asano, Ai Miyamoto, Hirotaka Ishido, Masanori Tamura, Hideaki Senzaki,

Paroxysmal atrioventricular block (PAVB) is rare in children. A 1-year-old boy presented with PAVB and sinus arrest that resulted in refractory life-threatening symptomatic long pauses. Continuous heart rate variability analysis with high time resolution (wavelet analysis) revealed an abrupt increase in parasympathetic activity just before a long pause, which indicated ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2017, 50(2):203-206]

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Developmental Changes in Aortic Mechanical Properties in Normal Fetuses and Fetuses with Cardiovascular Disease.

Mio Taketazu, Masaya Sugimoto, Hirofumi Saiki, Hirotaka Ishido, Satoshi Masutani, Hideaki Senzaki,

We hypothesized that fetal aortic mechanical properties assessed by aortic diameter (AoD) and flow show maturational changes during the gestational period, and that these properties are different in fetuses with congenital heart diseases and fetuses with normal development.Phasic changes in ascending AoD along with Doppler flow profile were measured in ... Read more >>

Pediatr Neonatol (Pediatrics and neonatology)
[2017, 58(3):245-250]

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