TY - JOUR
T1 - PJ3-039 Electrocardiography Reflects Properly the Changes of Right-Sided Heart Overload in Patients with Chronic Pulmonary Thromboembolism Treated by Percutaneous Transluminal Pulmonary Angioplasty
AU - Shimura, Nobuhiko
AU - Kataoka, Masaharu
AU - Inami, Takumi
AU - Yanagisawa, Ryoji
AU - Taguchi, Hiroki
AU - Kikuchi, Hanako
AU - Hayashida, Kentaro
AU - Yoshino, Hideaki
AU - Satoh, Toru
PY - 2011
Y1 - 2011
N2 - Background: Chronic pulmonary thromboembolism (CPTE) leads to pulmonary arterial hypertension (PAH). The electrocardiography (ECG) of the patients with CPTE reflects the right-sided heart overload due to PAH. Recently, percutaneous transluminal pulmonary angioplasty (PTPA) has been demonstrated to be effective for some patients with CPTE. The purpose was to investigate the changes of ECG in patients underwent PTPA. Methods: We performed PTPA to 18 patients with CPTE. ECG was recorded before and after PTPA. Hemodynamic variables through right heart catheterization were determined at the same time. Results: The hemodynamics after PTPA was significantly improved compared to the baseline (mean pulmonary arterial pressure, 46.4 mmHg vs. 34.4 mmHg; pulmonary vascular resistance, 14.2 wood units vs. 7.8 wood units). The P amplitude in lead II was significantly decreased (2.7 mV vs. 2.0 mV). The electrical axis of QRS waves went leftward significantly (102.6° vs. 89.9°). The R/S in lead V5 was significantly increased (1.5 vs. 2.7). Conclusions: Our results suggest that the changes of ECG reflect properly the changes of right-sided heart overload by PTPA. The evaluation of ECG is a simple and easy method to assess the treatment efficacy of PTPA.
AB - Background: Chronic pulmonary thromboembolism (CPTE) leads to pulmonary arterial hypertension (PAH). The electrocardiography (ECG) of the patients with CPTE reflects the right-sided heart overload due to PAH. Recently, percutaneous transluminal pulmonary angioplasty (PTPA) has been demonstrated to be effective for some patients with CPTE. The purpose was to investigate the changes of ECG in patients underwent PTPA. Methods: We performed PTPA to 18 patients with CPTE. ECG was recorded before and after PTPA. Hemodynamic variables through right heart catheterization were determined at the same time. Results: The hemodynamics after PTPA was significantly improved compared to the baseline (mean pulmonary arterial pressure, 46.4 mmHg vs. 34.4 mmHg; pulmonary vascular resistance, 14.2 wood units vs. 7.8 wood units). The P amplitude in lead II was significantly decreased (2.7 mV vs. 2.0 mV). The electrical axis of QRS waves went leftward significantly (102.6° vs. 89.9°). The R/S in lead V5 was significantly increased (1.5 vs. 2.7). Conclusions: Our results suggest that the changes of ECG reflect properly the changes of right-sided heart overload by PTPA. The evaluation of ECG is a simple and easy method to assess the treatment efficacy of PTPA.
KW - chronic pulmonary thromboembolism
KW - percutaneous transluminal pulmonary angioplasty
KW - pulmonary arterial hypertension
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U2 - 10.4020/jhrs.27.PJ3_039
DO - 10.4020/jhrs.27.PJ3_039
M3 - Article
AN - SCOPUS:85008728337
SN - 1880-4276
VL - 27
JO - Journal of Arrhythmia
JF - Journal of Arrhythmia
ER -