Simulation of Radiation Dose for Female Physicians: Radiation Exposure Risk in Structural Heart Disease Procedures

Takeshi Takata, Akihisa Kataoka, Ayaka Yanagawa, Kenshiro Shiraishi, Jun’ichi Kotoku

Objective: Recently, the number of structural heart disease (SHD) procedures has increased, leading to increased radiation exposure doses of physicians. Information about SHD physicians’ exposure is insufficient to elucidate their degree of exposure. Physicians’ radioprotection is therefore poor or sometimes overly cautious. This study uses quantitative evaluation with a physical simulation to elucidate the exposure dose sustained by physicians during SHD procedures.

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Zero-contrast Imaging Guided Transcatheter Aortic Valve Replacement in Patients with Severe Chronic Kidney Disease: A Feasibility and Outcome Study

Nozomu Yukimitsu, Yusuke Watanabe, Akihisa Kataoka, Hirofumi Hioki, Ruri Ishibashi, Taiga Katayama, Shintaro Takamura, Fukuko Nagura, Hideyuki Kawashima, Hirosada Yamamoto, Yuji Watari, Kumiko Konno, Naoyuki Yokoyama, Ken Kozuma

Objective: The clinical utility of transcatheter aortic valve replacement (TAVR) without contrast medium in patients with advanced-stage chronic kidney disease (CKD) remains unexplored. We evaluated the feasibility and clinical utility of zero-contrast TAVR in patients with CKD.

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Transcarotid Transcatheter Aortic Valve Replacement for Severe Aortic Valve Stenosis with Narrow Aortic Root and Shaggy Aorta: A Case Report

Hiroyuki Nakayama, Masanao Toma, Ryota Miyamoto, Tadashi Miyamoto, Akio Shimoji, Naoto Fukunaga, Nobushige Tamura, Yukihito Sato

Objective: Transcarotid access for transcatheter aortic valve replacement (TAVR) is a minimally invasive alternative approach if femoral access becomes unfavorable; however, it remains off-label use in Japan.

Case Presentation: An 85-year-old female patient with severe aortic valve stenosis presented to our hospital and was diagnosed with acute heart failure.

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