Masanao Nakai

Serial Changes in Left Ventricular Ejection Fraction After Transcatheter Aortic Valve Implantation: Associations With Ischemic Heart Disease and Left Ventricular End‐Diastolic Diameter

Koji Tanaka, Shigetaka Kageyama, Hirofumi Sugiyama, Riho Sano et autres

PURPOSE: Left ventricular ejection fraction (LVEF) recovery after transcatheter aortic valve implantation (TAVI) varies among patients with severe aortic stenosis and reduced LVEF. We characterized serial changes in LVEF and examined their associations with ischemic heart disease (IHD) and baseline left ventricular …

jp (code pays fourni par la source)

Midterm outcomes after TAVR or SAVR in low-risk patients with severe aortic stenosis in the real clinical practice in Japan

Kotaro Takahashi, Yasuaki Takeji, Tomohiko Taniguchi, Takeshi Morimoto et autres

jp (code pays fourni par la source)

Cardiac damage stages at follow-up and subsequent clinical outcomes in patients with severe aortic stenosis

Yasuaki Takeji, Tomohiko Taniguchi, Takeshi Morimoto, Shinichi Shirai et autres

jp (code pays fourni par la source)

Limited intimal tear of the ascending aorta in a young patient: a case report

Ryota Nomura, Takahiro Suzuki, Muneaki Yamada, Masanao Nakai

A 34-year-old man developed sudden retrosternal pain during exercise. Initial CT suggested type A dissection without a visible flap, showing mild pericardial effusion, ascending aortic dilatation, and a subtle bulge. Follow-up CT on day 3 revealed progression, prompting urgent valve-sparing aortic root …

jp (code pays fourni par la source)

Changes in Demographics, Initial Treatment Strategies, and Clinical Outcomes of Severe Aortic Stenosis in the Pre- and Post-TAVR Era in Japan

Yasuaki Takeji, Tomohiko Taniguchi, Takeshi Morimoto, Shinichi Shirai et autres

BACKGROUND: The overall impact of the introduction of transcatheter aortic valve replacement (AVR) on the prognosis of the entire population with severe aortic stenosis has not been evaluated. METHODS: We analyzed 2 multicenter registries that consecutively enrolled patients with severe aortic stenosis …

jp (code pays fourni par la source)

Cardiac Damage Stages and Clinical Outcomes in Patients With Severe Aortic Stenosis

Yasuaki Takeji, Tomohiko Taniguchi, Takeshi Morimoto, Shinichi Shirai et autres

BACKGROUND: The prognostic impact of cardiac damage staging in severe aortic stenosis (AS) based on gradient patterns, symptoms, and initial treatment strategies is not well understood. OBJECTIVES: This study aimed to assess the differences in characteristics and clinical outcomes of AS patients …

jp (code pays fourni par la source)

Hemodynamic performance and midterm clinical outcomes after surgical aortic valve replacement using trifecta and perimount magna valves: a Japanese single-center experience

Yujiro Miura, Nao Ichihara, Shinji Kawaguchi, Ryota Nomura et autres

BACKGROUND: Surgical bovine pericardial bioprosthetic valves have become popular because of their improved durability; however, with the rise of transcatheter aortic valve implantation, bioprosthetic valves that offer superior hemodynamics are needed. This single-center observational study aimed to compare the hemodynamic performance of …

jp (code pays fourni par la source)

[Early and Long-term Results of Lung Volume Reduction Surgery for Severe Chronic Obstructive Pulmonary Disease Patient with Target Area Not Restricted in Upper Lobe].

Kouji Chihara, Masanao Nakai, Hisashi Sahara

The basic patient selection criteria in lung volume reduction surgery (LVRS) is that the target area (TA) is located in the upper lobe since National Emphysema Treatment Trial (NETT). TA could be described as "airoma" (AO) with excess residual volume and poor …

jp (code pays fourni par la source)

Early Aortic Valve Replacement Versus Clinical Surveillance in Asymptomatic Patients With Severe Aortic Stenosis

Yasuaki Takeji, Tomohiko Taniguchi, Takeshi Morimoto, Shinichi Shirai et autres

jp (code pays fourni par la source)

Prognostic Value of the 6-Minute Walk Test in Patients With Severe Aortic Stenosis

Norio Kanamori, Yasuaki Takeji, Tomohiko Taniguchi, Takeshi Morimoto et autres

BACKGROUND: The prognostic significance of the 6-minute walk distance (6MWD) in patients with severe aortic stenosis (AS) has not been thoroughly investigated. METHODS AND RESULTS: This study evaluated 998 patients with severe AS who underwent a 6-min walk test as part of …

jp (code pays fourni par la source)

Safety of Calcium Channel Blockers in Patients With Severe Aortic Stenosis and Hypertension

Ko Yamamoto, Yasuaki Takeji, Tomohiko Taniguchi, Takeshi Morimoto et autres

BACKGROUND: There is a paucity of data on safety of calcium channel blockers (CCB) in patients with severe aortic stenosis (AS) and hypertension. METHODS AND RESULTS: Among 2,460 patients with severe AS and hypertension receiving antihypertensive therapy in the CURRENT AS registry-2, …

jp (code pays fourni par la source)

Availability of transcatheter aortic valve implantation across hospitals and differences in strategies and clinical outcomes in patients with severe aortic stenosis

Yasuaki Takeji, Tomohiko Taniguchi, Takeshi Morimoto, Shinichi Shirai et autres

jp (code pays fourni par la source)