Anomalies Du Rythme Et De La Conduction Cardiaque Au Holter ECG De 24 Heures Chez Les Patients Atteints De La Covid-19 Vus En Ambulatoire

Abstract

Introduction: Cardiac arrythmias and conduction disturbances are part of the expression of the disease in COVID-19. A lack of studies in patients with mild or moderate forms of the disease has been observed in the post-acute phase.

Methods: We carried out a retrospective, descriptive and analytical study, over 27 months, in ambulatory COVID-19 patients. The aim of our study was to determine the prevalence of arrhythmias and conduction disorders in these patients, and to describe the cardiac rhythm and conduction abnormalities found on the 24-hour Holter ECG in patients with COVID-19. From this we will compare the interest of the Holter ECG compared to the standard ECG.

Results: Forty-nine patients were studied (3,98%). Abnormalities were seen in 38,7% of the cases, mostly supraventricular arrythmias (26,5%). Ventricular arrythmias were present in 20,4%, and atrioventricular blocks in 6,1%. These findings were mostly benign. Sinus tachycardia was present in 20%. An age with high cardiovascular risk (p=0,000), arterial hypertension (p=0,000), a previous cardiopathy (p=0,007), fatigue (p=0,017), a long cQT (p=0,006) and left ventricular wall motion abnormality (p=0,037) were the factors associated with the occurrence of these abnormalities. Our results also showed the effectiveness of the 24 hours Holter ECG over a short ECG recording for the diagnosis of arrythmias and conduction disturbances.

Conclusion: Arrythmias and conduction disturbances prevalence were considerable, and all were mostly benign. A screening using a 24-hour Holter ECG monitoring should be considered in patients with cardiovascular comorbidities, fatigue, long cQT and with myocardial involvement signs.