Takafumi Okura

Bilateral Coronary Artery–to–Pulmonary Artery Fistula Treated Using Minimally Invasive Coils and Vascular Embolization Devices

Ryoto Takagi, Jun Irita, Yusuke Akazawa, Kosuke Kashiwagi et autres

BACKGROUND: Coronary artery-to-pulmonary artery fistula (CAPF) is a rare condition that is often asymptomatic; however, intervention is indicated in symptomatic patients or in those with myocardial ischemia. CASE SUMMARY: A 44-year-old woman with a cardiac murmur since early adulthood presented with progressive …

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Publisher Correction: The Japanese Society of Hypertension Guidelines for the management of elevated blood pressure and hypertension 2025 (JSH2025)

Yusuke Ohya, Kimika Arakawa, Naoko Arata, Shuji Arima et autres

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The Japanese Society of Hypertension Guidelines for the management of elevated blood pressure and hypertension 2025 (JSH2025)

Yusuke Ohya, Kimika Arakawa, Naoko Arata, S Arima et autres

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Tracking a patient with no technetium-99m-pyrophosphate myocardial uptake at surgical valve replacement for aortic stenosis

Koji Takahashi, Daisuke Sasaki, Takaaki Iwamura, Shûhei Yamamoto et autres

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Association Between Cardio-Ankle Vascular Index and Heart Failure Outcomes

Toru Miyoshi, Kohji Shirai, Shigeo Horinaka, Jitsuo Higaki et autres

BACKGROUND: Heart failure (HF) is a substantial public health concern associated with poor prognosis and limited tools for early prediction. Arterial stiffness contributes to the development of HF, particularly with a preserved ejection fraction. The cardio-ankle vascular index (CAVI) is a noninvasive, …

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Extracardiac Tracer Uptake on Technetium-99m–Labeled Pyrophosphate Scintigraphy in Patients With Non-transthyretin Cardiac Amyloidosis

Koji Takahashi, Daisuke Sasaki, Nobuhisa Yamamura, Takaaki Iwamura et autres

Background: In patients with wild-type transthyretin (ATTRwt) amyloidosis, formerly known as senile systemic amyloidosis, ATTRwt deposition in soft tissues causes orthopedic diseases several years before cardiac manifestations. However, few studies have demonstrated extracardiac ATTRwt deposition before myocardial deposition through imaging modalities. This …

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Another example of Aslanger’ s sign

Koji Takahashi, Nobuhisa Yamamura, Mako Yoshino, Daijiro Enomoto et autres

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Wild-Type Transthyretin Amyloidosis With 99mTc-PYP Uptake in the Extracardiac Soft Tissues But Not in the Myocardium

Koji Takahashi, Takaaki Iwamura, Daisuke Sasaki, Mitsuharu Ueda et autres

ABSTRACT: Wild-type transthyretin amyloid (ATTRwt) deposits in most organs, mainly the heart, ligaments, and tenosynovium. Orthopedic diseases due to ATTRwt deposits often precede overt ATTRwt cardiomyopathy. 99mTc-PYP scintigraphy is highly sensitive in detecting myocardial and extracardiac ATTRwt deposits. However, there are few …

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Understanding of therapeutic efficacy of coronary intervention by echocardiography in a patient with acute coronary syndrome

Katsuji Inoue, Tomoki Sakaue, Mako Yoshino, Nobuhisa Yamamura et autres

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99mTc-PYP Uptake in an Insulin Ball

Koji Takahashi, Daisuke Sasaki, Nobuhisa Yamamura, Katsuji Inoue et autres

ABSTRACT: Long-term subcutaneous insulin injection causes histopathological changes, such as insulin amyloidosis resulting in poor glycemic control, at the insulin injection site. Insulin amyloidosis often leads to the formation of a nodule called the "insulin ball." An insulin ball has not yet …

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Downsloping TP Segment in the Precordial Leads on a Standard 12-lead Electrocardiogram: Suspected Cardiac Impulse-tapping Artifact

Koji Takahashi, Nobuhisa Yamamura, K YAMAUCHI, Tatsuya Kasamura et autres

We herein report an 80-year-old man showing a downsloping TP segment together with an increase in the height of the T wave in the precordial leads on a standard 12-lead electrocardiogram (ECG). Separately, an 87-year-old woman showed only a downsloping TP segment …

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Accidental Hypothermia-Induced J Wave Coupled With Giant R Wave Augmented by Premature Atrial Contraction: A Case Report

Koji Takahashi, Hiroe Morioka, Shigeki Uemura, Takafumi Okura et autres

The 12-lead electrocardiographic findings in hypothermia include the presence of J waves; prolongation of the PR, QRS, and QT intervals; and atrial and ventricular dysrhythmias. Among these findings, the J wave, known as the Osborn wave, is considered pathognomonic. In 1953, the …

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