Relationship between RS time and the severity of chronic obstructive pulmonary disease

Purpose: The aim of our study was to determine whether the RS time measured on an electrocardiogram is associated with severity chronic obstructive pulmonary disease (COPD).
 Materials and Methods: population made up 100 COPD patients a mean age 63 ± 10 years (86% were males). These divided into mild moderate (GOLD 1–2) group (n = 45) severe very 3–4) 55) according Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages. groups compared each other.
 Results: Heart rate, P wave axis, QRS time, incidence right bundle branch block significantly higher in COPD. In multivariable analysis, heart (odds ratio 1.081) independent predictors receiver operating characteristic curve analysis showed that best cutoff value prediction 60 ms, sensitivity 69.1% specificity 66.7%.
 Conclusion: simply may be useful screening test quick estimation