Role of electrocardiogram for rapid detection of arrhythmia in end stage renal disease patient in Babylon province

الملخص EN

The cardiovascular diseases and their complications are the major causes of death of patients with chronic kidney disease and on dialysis.

Aim : Role of non invasive rapid methods, like ECG, in predicting arrhythmias in end stage renal disease patients on hemodialysis.

Methods: 60 patients (23 female, 37 male) with end stage renal disease on hemodialysis were enrolled in this cross sectional study with mean age (52 ± 5.5), A resting 12-lead surface ECG was recorded for each patient, measurement of the longest and shortest intervals QT interval and correction of these intervals by using Bazett's square root formula.

QT-dispersion is measured by finding the difference between these intervals.

The Tp-Te is measured in each precordial lead and is obtained from the difference between QT interval and QTpeak interval.

The LVH is evaluated by Two-dimensional echocardiography.

Measurement of QRS duration and PR interval were done.

Results : Percentage and range of Abnormal values of these parameters includes: QTc interval 83.3 % (456-554 mSec) , QT-dispersion 67% (81-111mSec), TpTe 22.2%(110-120 mSec), PR interval 5% (0.22-0.24 Sec) with no abnormal QRS duration (0%) .

Other findings : peaked T-wave (20%).70% of the patients had LVH.

Patients were divided into those with LVH and those without LVH, maximal QT-dispersion is greater in the group with LVH than those without LVH (44%, 22% respectively), but statistically there is no significant difference.

Conclusion : Electrocardiograms are low cost diagnostic tools for renal therapy centers, and nephrologists must consider QT interval, as measurement of QT and QTc dispersion is a simple bedside method to be used for analyzing ventricular repolarization during hemodialysis.