Importance of exercise testing shortly after subcutaneous implantable cardioverter-defibrillator implantation in patients with Brugada syndrome - The first case of associated inappropriate shock in Japan

Kohei Ishibashi; Takashi Noda; Tsukasa Kamakura; Mitsuru Wada; Yuko Inoue; Hideo Okamura; Kengo Kusano

doi:10.1016/j.joa.2016.07.006

Importance of exercise testing shortly after subcutaneous implantable cardioverter-defibrillator implantation in patients with Brugada syndrome - The first case of associated inappropriate shock in Japan

J Arrhythm. 2017 Apr;33(2):156-158. doi: 10.1016/j.joa.2016.07.006. Epub 2017 Mar 6.

Authors

Kohei Ishibashi¹, Takashi Noda¹, Tsukasa Kamakura¹, Mitsuru Wada¹, Yuko Inoue¹, Hideo Okamura¹, Kengo Kusano¹

Affiliation

¹ Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan.

Abstract

We report the case of a 51-year-old patient with Brugada syndrome (BrS) who experienced inappropriate shock due to T-wave oversensing (TWOS) during exercise when the optimal sensing vector was selected based on the automatic analysis by a subcutaneous implantable cardioverter-defibrillator (S-ICD). After selecting another vector during exercise testing, TWOS did not re-occur. Selection of appropriate sensing vector based on analyses under various conditions, including during exercise after S-ICD implantation, should be considered for patients with BrS.

Keywords: Brugada syndrome; Inappropriate shock; Subcutaneous implantable cardioverter-defibrillator.