Objective

Extracorporeal shock wave lithotripsy (ESWL) is safe and effective treatment of urinary tract calculi. While serious side effects are rare, transient cardiac arrhytmias may be seen in ESWL treatment. New electrocardiographic (ECG) parameters such as P wave dispersion (PWD), QT dispersion (QTd), T peak to T end (Tp-e) interval, Tp-e interval/QT ratio, and Tp-e interval/corrected QT ratio have been defined for prediction of atrial and ventricular arrhythmias. However, the effect of ESWL shock wave on these ECG parameters has not been investigated before. In the the present study we aimed to investigate the effect of ESWL shock wave on ECG parameters.

Methods

40 consecutive patients who were treated with ESWL procedure were prospectively enrolled in the study. Pre-procedure ECG parameters were compared with post-procedure ECG parameters.

Methods

40 consecutive patients who were treated with ESWL procedure were prospectively enrolled in the study. Pre-procedure ECG parameters were compared with post-procedure ECG parameters.

Results

PWD values were significantly longer on post-procedure ECGs compared to pre-procedure ECGs (p=0.017). Corrected QT duration and QTd were significantly longer on post-procedure ECGs compared to pre-procedure ECGs (p= 0.046 and p= 0.008, respectively). In addition, Tp-e interval, Tp-e interval/QT ratio and Tp-e interval/QTc ratio were significantly longer on post-procedure ECGs (p= 0.035, p=0.045, and p= 0.022, respectively). In univariate correlation analysis, duration of ESWL procedure was significantly correlated with post-procedure PWD, QTc and QTD values.

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