Tatsushi Ootomo

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The transradial approach for catheterization is becoming increasingly more popular. At present, the choice of the right or left radial artery depends on the operator's preference. We examined how the laterality influenced the effectiveness of the approach. Employing Judkins-type catheters, we performed coronary angiography in 232 patients with the left(More)
From the *Cardiovascular Center, Sendai Kousei Hospital, Aoba-ku, Sendai, Miyagi, Japan; and the yDivision of Cardiology, Sanyudo Hospital, Yonezawa, Yamagata, Japan. The authors have reported that they have no relationships relevant to the contents of this paper to disclose. Manuscript received April 17, 2013; accepted April 25, 2013. An electrocardiogram(More)
OBJECTIVES We aimed to investigate the feasibility and safety of alcohol septal ablation (ASA) via transradial approach using a sheathless guiding catheter. BACKGROUND Although ASA is conventionally performed via the femoral artery, there is a potential risk of bleeding and other vascular complications. The transradial approach may be associated with a(More)
The percutaneous arm approach through the radial or brachial artery for diagnostic cardiac catheterization has advantages, such as a lower incidence of access-site complications and decreased patient discomfort, particularly when smaller diameter catheters are employed. However, the pressure produced by high-flow jets of contrast material exiting from an(More)
OBJECTIVES To evaluate the efficacy and safety of transradial coronary intervention (TRI) using a sheathless guide catheter (sheathless TRI) in a large, retrospective, single-center study. BACKGROUND The sheathless guide catheter was designed to be inserted without an introducer sheath to decrease stress to the radial artery. Although the sheathless guide(More)
Although regular supraventricular tachycardia is traditionally classified on the basis of P-wave morphology, diagnostic accuracy is limited to information obtained from surface electrocardiography. Intracardiac electrophysiology is a conclusive although invasive diagnostic method. We report a case of regular supraventricular tachycardia with a heart rate of(More)
A n 83-year-old man was referred for transcatheter aortic valve replacement (TAVR) for severe aortic stenosis. Preoperative 320– detector row multidetector computed tomography revealed aortic valve calcification and an asymmetrically thickened basal interventricular septum. Reconstruction of a volumetric dataset every 10% of the cardiac cycle using(More)
A 75-year-old hemodialysis patient with right critical limb ischemia received endovascular therapy for a chronic total occlusion (CTO) in a diffusely calcified superficial femoral artery (SFA). During a retrograde approach, a Brockenbrough needle (BN) was able to penetrate the calcified hard plaque formed in the middle segment of the CTO. Moreover, bougie(More)
The needle's eye snare has become an indispensable tool in contemporary pacemaker lead extraction techniques. Here, we present a modified method of using the needle's eye snare, named "spaghetti twisting" technique, to catch and secure pacemaker leads, which would help operators catch and secure leads much easily.