Relation of Supraventricular Arrhythmias Detected by Implantable Cardioverter Defibrillator and Air Pollutants

Abstract

Introduction: One of the therapeutic approaches in cases with high-risk heart disease, particularly heart failure, is the implantation of an implantable cardioverter defibrillator (ICD) to avoid unexpected death. Supraventricular arrhythmias (SVAs) are one of the most common events in aforementioned subjects and it has been proposed that air pollution plays a substantial role in deteriorating of condition. Materials and Methods: The present investigation was performed from April 2018 to March 2019 in Chamran Hospital of Medical University of Isfahan, Isfahan, Iran on the 100 cases who had ICD and lived in Isfahan. We recorded the residence of participants to be matched to the reports of the Isfahan Meteorological Organization, and then comprehensive valuations associated with SVAs were done in them. Results: There was no significant difference between age and sex with the incidence of SVAs (P = 0.15 and 0.57, respectively). There is no significant difference between the presence of comorbidities and the incidence of SVAs (P = 0.57). The relationship between SVA and air pollution was significant (P = 0.008). Furthermore, based on the correlation test results, the aforementioned relationship was significant with a Spearman correlation coefficient of 0.29 and P = 0.003. Conclusion: The severity of air pollution is associated with an increase in SVAs in patients with ICD. In the present study, due to the insignificance of confounding variables such as smoking and diabetes, it is largely reliable, but what is certain to make a definite statement about this relationship, is conduct a study with a larger sample size and also in several centers is necessary.

Keywords

• air pollution
• implantable cardioverter defibrillator
• supraventricular arrhythmias