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Your search keyword '"Masao Imai"' showing total 4 results
Start Over Author "Masao Imai" Journal cardiovascular intervention and therapeutics
4 results on '"Masao Imai"'

1. Cardiac erosion causing an aortic dissection after a catheter closure of an atrial septal defect: first late erosion case with the Figulla Flex II septal occluder

Author

Tadashi Miyamoto, Yukihito Sato, Keiichi Fujiwara, Kousuke Yoshizawa, Masao Imai, and Shinya Ikeda

Subjects
Aortic dissection, medicine.medical_specialty, Cardiac Catheterization, Catheters, medicine.diagnostic_test, business.industry, Septal Occluder Device, Closure (topology), Interventional radiology, General Medicine, medicine.disease, Heart Septal Defects, Atrial, Surgery, Catheter, Aortic Dissection, Treatment Outcome, medicine, Humans, Radiology, Nuclear Medicine and imaging, Septal Occluder, Cardiology and Cardiovascular Medicine, business
Published
2019

2. Pathological findings of late total occlusion after Zilver PTX stent implantation in restenosis lesion of bare-metal nitinol stent for superficial femoral artery

Author

Takeshi Kimura, Junichi Tazaki, Masao Imai, and Katsumi Inoue

Subjects
Nitinol stent, medicine.medical_specialty, medicine.diagnostic_test, business.industry, Superficial femoral artery, Interventional radiology, General Medicine, medicine.disease, Lesion, Restenosis, Medicine, Bare metal, Stent implantation, Radiology, Nuclear Medicine and imaging, Radiology, medicine.symptom, Cardiology and Cardiovascular Medicine, business, Pathological
Published
2018
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3. Transfemoral transcatheter aortic valve implantation in the presence of a mechanical mitral valve prosthesis using a dedicated TAVI guidewire: utility of a patient-specific three-dimensional heart model

Author

Masao Imai, Takanari Fujita, Naritatsu Saito, Kazuhiro Yamazaki, Kenji Minakata, and Takeshi Kimura

Subjects
Models, Anatomic, medicine.medical_specialty, Transcatheter aortic, medicine.medical_treatment, 030204 cardiovascular system & hematology, Radiography, Interventional, Prosthesis, Aortography, 030218 nuclear medicine & medical imaging, Transcatheter Aortic Valve Replacement, 03 medical and health sciences, 0302 clinical medicine, Mechanical Mitral Valve, Internal medicine, Mitral valve, medicine, Humans, Radiology, Nuclear Medicine and imaging, Aged, 80 and over, medicine.diagnostic_test, business.industry, Mitral valve replacement, Interventional radiology, General Medicine, Aortic Valve Stenosis, Patient specific, medicine.disease, Surgery, Stenosis, medicine.anatomical_structure, Heart Valve Prosthesis, cardiovascular system, Cardiology, Mitral Valve, Female, Cardiology and Cardiovascular Medicine, business
Abstract

An 82-year-old woman with severe aortic stenosis was referred. She had previously undergone mitral valve replacement. We planned transcatheter aortic valve implantation (TAVI) with transfemoral approach. We planned to use the Safari-dedicated TAVI guidewire. No studies have reported clinical application of the dedicated TAVI guidewire in a patient with the previous mitral valve replacement. Thus, we conducted a simulation using a three-dimensional heart model to confirm the safety of the procedure. The procedure was successful without any complications. This case is the first to show that the dedicated TAVI guidewire can be safely used in patients with preexisting mitral valve.

Published
2016

4. Impact of angiographic peri-stent contrast staining (PSS) on late adverse events after sirolimus-eluting stent implantation: an observation from the multicenter j-Cypher registry PSS substudy

Author

Naritatsu Saito, Ippei Kosedo, Hakuken Kan, Shinichirou Miyazaki, Kazuya Nagao, Takuo Ishise, Hiromasa Taniguchi, Takeshi Tada, Hiromichi Tamekiyo, Hiroki Shiomi, Hitoshi Nakajima, Kazuaki Mitsudo, Takeshi Kimura, Hiroshi Fujita, Hiroaki Mukawa, Koichi Kishi, Masao Imai, Kazushige Kadota, Satoshi Yamamoto, Fujio Hayashi, Ren Kawaguchi, Tomohiro Kawasaki, Hiroki Sakamoto, Kinya Shirota, Takeshi Morimoto, Takafumi Yamane, Eiji Taguchi, Kyohei Yamaji, Takayuki Okamura, and Shunsuke Take

Subjects
Male, medicine.medical_specialty, medicine.medical_treatment, Anti-Inflammatory Agents, Contrast Media, Revascularization, Coronary Angiography, Lesion, Coronary artery disease, Coronary Restenosis, Blood Vessel Prosthesis Implantation, Restenosis, Japan, Risk Factors, Internal medicine, medicine, Humans, Radiology, Nuclear Medicine and imaging, Cumulative incidence, Registries, Aged, Retrospective Studies, Sirolimus, medicine.diagnostic_test, business.industry, Coronary Thrombosis, Coronary Stenosis, Stent, Drug-Eluting Stents, General Medicine, medicine.disease, Thrombosis, stomatognathic diseases, Angiography, Cardiology, Female, medicine.symptom, Cardiology and Cardiovascular Medicine, business, Follow-Up Studies
Abstract

This study sought to assess clinical significance of angiographic peri-stent contrast staining (PSS) after sirolimus-eluting stent (SES) implantation in a large multicenter study with 5-year follow-up. The j-Cypher PSS substudy is a multicenter study including 5712 patients (7838 lesions) who underwent follow-up angiographic study within 12 months after SES implantation. Late acquired PSS was observed in 184 patients (3.2 %) or 194 lesions (2.5 %). Independent risk factors of PSS were chronic total occlusion and left anterior descending artery lesion, while negative risk factors were in-stent restenosis, diabetes mellitus, ≥70 years of age, and left circumflex coronary artery lesion. Cumulative incidence of definite very late stent thrombosis (VLST) at 4 years after the index follow-up angiography in lesions with PSS was significantly higher than that in lesions without PSS (5.3 versus 0.7 %, P

Published
2013

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