Yoshihiro J. Akashi, MD, PhD

Tomomi Suzuki , MD, PhD;

Endothelialization of Amplatzer PFO Occluder Device 12 Months After Implantation: First-in-Human Angioscopic Assessment

The current guidelines recommend at least 6-month antithrombotic and antibiotic prophylaxis following atrial septal occluding device placement using the phrase “until endothelialization.” This is the first evaluation of PFO occluder device...

The current guidelines recommend...

01/31/2022

Journal of Invasive Cardiology

Clinical Images

01/28/2022

Tomomi Suzuki , MD, PhD;

Endothelialization of a Venous Stent at 1-month Post-Implantation: First in Human Angioscopic Assessment

The current guidelines recommend at least 6 months of antithrombotic and antibiotic prophylaxis following atrial septal occluding device placement using the phrase “until endothelialization.”

The current guidelines recommend...

01/28/2022

Journal of Invasive Cardiology

Clinical Images

08/31/2020

Takanobu Mitarai , MD;

Comparison in Clinical Outcomes Between Leadless and Conventional Transvenous Pacemaker Following Transcatheter Aortic Valve Implantation

This is the first report to evaluate endothelialization in vivo; the evidence of endothelialization on the venous stent in the early phase suggests that antithrombotic therapy could be stopped in some patients with high risk of bleeding in...

This is the first report to...

08/31/2020

Journal of Invasive Cardiology

EP Research

02/04/2021

Mika Watanabe , MD;

Masashi Koga , MD;

Ryo Kamijima , MD, PhD;

Makoto Takano , MD;

Tomoo Harada , MD, PhD;

Kazuaki Okuyama , MD;

Kenichi Sasaki , MD;

Comparison in Clinical Outcomes Between Leadless and Conventional Transvenous Pacemaker Following Transcatheter Aortic Valve Implantation

Toshiki Kaihara , MD, PhD;

Patients with leadless PM following TAVI may have shorter hospital stays, and clinical outcomes can be comparable with DDD-PMs.

Patients with leadless PM...

02/04/2021

EP Lab Digest

09/30/2020

Kazuaki Okuyama , MD;

Kenichi Sasaki , MD;

“Avulsion Injury” of the Artery by a Suture-Mediated Closure System During Transcatheter Aortic Valve Implantation

Toshiki Kaihara , MD, PhD;

Tomoo Harada , MD, PhD;

Mika Watanabe , MD;

Masashi Koga , MD;

Ryo Kamijima , MD, PhD;

Makoto Takano , MD;

Atrioventricular block is a common complication of transcatheter aortic valve implantation (TAVI). Although conventional transvenous dual-chamber pacemaker (PM) is ideal for atrioventricular block, leadless PM is less invasive and may be...

Atrioventricular block is a...

09/30/2020

Journal of Invasive Cardiology

Clinical Images

06/30/2020

Kazuaki Okuyama , MD;

Toshiki Kaihara , MD, PhD;

Mika Watanabe , MD;

Masashi Koga , MD;

Ryo Kamijima , MD, PhD;

Endothelialization of a Venous Stent at 1-month Post-Implantation: First in Human Angioscopic Assessment

We describe a cut-down method that is useful in cases with calcification restricted to the region surrounding the puncture site in transcatheter aortic valve implantation patients with severe aortic stenosis.

We describe a cut-down method...

06/30/2020

Journal of Invasive Cardiology

Clinical Images

08/31/2020

Takanobu Mitarai , MD;

Endothelialization of an Amplatzer Septal Occluder Device 6 Months Post Implantation: Is This Enough Time? An In Vivo Angioscopic Assessment

This is the first report to...

08/31/2020

Journal of Invasive Cardiology

(A) Angioscopic system evaluating surface of the atrial septal occluder (ASO): low-molecular-weight dextran is infused from the guiding catheter and the tip of the GuideLiner extension catheter during observation. (B) Neointima covering most of the 22 mm ASO 6 months post implantation. (C) Around the central part of the device, the struts were exposed with marked thrombus formation. Guidewire marked by asterisks (*) in panels B and C.

01/28/2019

Yukio Sato , MD, PhD;

Tomoo Harada , MD, PhD;