Full Text Journal Articles by
Author Hirotaka Ishido

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Child with Kawasaki Disease Complicated by A Single Right Coronary Artery.

Ryota Nakagawa, Hirotaka Ishido, Yoichi Iwamoto, Mai Sekine, Taichi Momose, Shoyo Tanikawa, Koichi Moriwaki, Satoshi Masutani,

A 3-year-old boy was referred to our hospital for management of Kawasaki disease at 5 days of illness. Echocardiographic examination on admission suggested aneurysmal dilation of the right coronary artery and a possible aorta-left main trunk connection. However, detailed echocardiography at 12 days of illness revealed an abnormal bifurcation of the proximal ... Read more >>

Clin Med Insights Cardiol (Clinical Medicine Insights. Cardiology)
[2021, 15:11795468211010700]

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Successful Percutaneous Thrombectomy of the Left Pulmonary Artery in a Neonate After a Patent Ductus Arteriosus Clipping.

Shota Muraji, Toshiki Kobayashi, Shuntaro Oka, Takuro Kojima, Shigeki Yoshiba, Masayo Kanai, Hirotaka Ishido, Satoshi Masutani, Ryusuke Hosoda, Ayumu Masuoka, Takaaki Suzuki, Naokata Sumitomo,

We report a neonate with a successful percutaneous thrombectomy of a total thrombotic occlusion of the left pulmonary artery (LPA) after a surgical clipping for a patent ductus arteriosus (PDA). We suspected the compression of the LPA by the clipping and postoperative hemodynamic instability caused the LPA obstruction. After the ... Read more >>

Int Heart J (International heart journal)
[2021, 62(3):706-709]

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Markedly long pause due to sinus arrest during dexmedetomidine use and nasal continuous positive airway pressure in two infants with respiratory syncytial virus infection.

Hideo Kojima, Risa Tanaka, Yoichi Iwamoto, Hirotaka Ishido, Yoshio Sakurai, Satoshi Masutani,

Nasal respiratory support for infants with respiratory distress caused by respiratory syncytial (RS) virus infection sometimes requires appropriate sedation. Dexmedetomidine can be an alternative sedative because of its advantage of less frequent respiratory suppression. We report the cases of twin infants with RS virus infection who showed unreported long pauses ... Read more >>

J Cardiol Cases (Journal of cardiology cases)
[2021, 23(1):10-12]

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Prevalence of Short Stature and Growth Hormone Deficiency and Factors Associated With Short Stature After Fontan Surgery.

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

<b><i>Background:</i></b> Fontan circulation is characterized by many features commonly observed in heart failure that may affect physical growth regardless of pituitary gland dysfunction status. The aims of the present study were to investigate the prevalence of short stature and growth hormone deficiency (GHD) and determine the factors associated with short ... Read more >>

Circ Rep (Circulation reports)
[2020, 2(4):243-248]

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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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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)
[2021, 19(1):60-62]

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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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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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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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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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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: 3 times

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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: 3 times

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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]

Cited: 0 times

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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]

Cited: 2 times

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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,

<h4>Background</h4>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<sup>®</sup> (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]

Cited: 0 times

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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,

<h4>Background</h4>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.<h4>Methods</h4>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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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]

Cited: 0 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,

<h4>Objective</h4>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: 6 times

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Ventricular-vascular dynamics in pediatric patients with heart failure and preserved ejection fraction.

Satoshi Masutani, Seiko Kuwata, Clara Kurishima, Yoichi Iwamoto, Hirofumi Saiki, Masaya Sugimoto, Hirotaka Ishido, Hideaki Senzaki,

<h4>Objective</h4>The details of the ventricular-vascular dynamics of heart failure with preserved ejection fraction (HFpEF) in children remain poorly understood. We tested the hypothesis that pediatric HFpEF patients have ventricular systolic, diastolic, and arterial stiffening at rest as well as impaired reserve function associated with coronary supply/demand imbalance.<h4>Methods</h4>We studied the ventricular ... Read more >>

Int J Cardiol (International journal of cardiology)
[2016, 225:306-312]

Cited: 6 times

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Mechanism of aortic root dilation and cardiovascular function in tetralogy of Fallot.

Mitsuru Seki, Seiko Kuwata, Clara Kurishima, Ryo Nakagawa, Ryo Inuzuka, Masaya Sugimoto, Hirofumi Saiki, Yoichi Iwamoto, Hirotaka Ishido, Satoshi Masutani, Hideaki Senzaki,

The aortic root dilation in tetralogy of Fallot (TOF) is a long-term clinical problem, because a severely dilated aorta can lead to aortic regurgitation, dissection, or rupture, which can be fatal, necessitating surgical intervention. The details of the mechanism of aortic root dilation, however, are unclear. We have shown that ... Read more >>

Pediatr Int (Pediatrics international : official journal of the Japan Pediatric Society)
[2016, 58(5):323-330]

Cited: 4 times

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