title: Intravascular ultrasound for transcatheter paravalvular leak closure.
abstract: Transcatheter closure of paravalvular leaks requires precise assessment of the location, size, and shape of the defect. Transesophageal echocardiography plays an important role in this process. We encountered a case of a paravalvular leak at the aortic position after aortic and mitral valve replacement. It was impossible to detect the precise location of the paravalvular leak with transesophageal echocardiography because of an acoustic shadow from the mitral mechanical valve. Intraoperative use of intravascular ultrasound was useful for determining the morphology of the defect and evaluating the procedure during the operation.
authors: Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka, 545-8585, Japan. takashimurakami24@hotmail.com.
authors: Takashi
authors: http://orcid.org/0000-0002-2661-2633
authors: T
authors: Murakami
authors: Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
authors: Hiromichi
authors: H
authors: Fujii
authors: Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
authors: Masanori
authors: M
authors: Sakaguchi
authors: Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
authors: Yosuke
authors: Y
authors: Takahashi
authors: Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
authors: Yasuo
authors: Y
authors: Suehiro
authors: Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
authors: Shinsuke
authors: S
authors: Nishimura
authors: Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
authors: Yoshito
authors: Y
authors: Sakon
authors: Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
authors: Daisuke
authors: D
authors: Yasumizu
authors: Department of Diagnostic and Interventional Radiology, Osaka City University Graduate School of Medicine, Osaka, Japan.
authors: Etsuji
authors: E
authors: Sohgawa
authors: Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
authors: Toshihiko
authors: T
authors: Shibata
mesh_terms: D006328:Cardiac Catheterization; D017548:Echocardiography, Transesophageal; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D011475:Prosthesis Failure; D012086:Reoperation; D025321:Surgery, Computer-Assisted / Q000379:methods*; D018084:Ultrasonography, Interventional / Q000379:methods*
keywords: Intravascular ultrasound; Paravalvular leak; Transcatheter closure