Inverse Relation between Condition of Heart Failure and Intrathoracic Impedance Measured by Implantable Cardioverter Defibrillator—A case report—

Kohei Matsushita; Toshiyuki Ishikawa; Shinichi Sumita; Tsukasa Kobayashi; Hideyuki Ogawa; Noriko Inoue; Katsumi Matsumoto; Minoru Taima; Ichirou Nakazawa; Teruyasu Sugano; Tomoaki Ishigami; Kazuaki Uchino; Kazuo Kimura; Satoshi Umemura

doi:10.4020/jhrs.21.553

Case Reports

Inverse Relation between Condition of Heart Failure and Intrathoracic Impedance Measured by Implantable Cardioverter Defibrillator—A case report—

Kohei Matsushita, Toshiyuki Ishikawa, Shinichi Sumita, Tsukasa Kobayashi, Hideyuki Ogawa, Noriko Inoue, Katsumi Matsumoto, Minoru Taima, Ichirou Nakazawa, Teruyasu Sugano, Tomoaki Ishigami, Kazuaki Uchino, Kazuo Kimura, Satoshi Umemura

著者情報

キーワード: Electric countershock, Monitoring, Physiologic (thoracic impedance), Pulmonary edema

ジャーナルフリー

2005 年 21 巻 5 号 p. 553-555

DOI https://doi.org/10.4020/jhrs.21.553

詳細

抄録

The patient was a 78-year-old man with dilated cardiomyopathy. His cardio-thoracic ratio was 60.4% and left ventricular ejection fraction (LVEF) was 33%. He had been repeatedly admitted for congestive heart failure. He underwent implantation of an implantable cardioverter-defibrillator (ICD) for ventricular fibrillation. We compared the values of BNP and shock impedance stored by the ICD. The correlation coefficient (p-value) between BNP and shock impedance was −0.700 (p<0.0005), increase of BNP and shock impedance was −0.778 (p<0.0001), percent increase of BNP and shock impedance was −0.767 (p<0.0005). In conclusion, there is an inverse relation between BNP and shock impedance, and measurements of shock impedance may be useful in the management of congestive heart failure.

責任著者(Corresponding author)

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