Left Atrial Function of COVID-19-recovered Patients During the Surge of Omicron Variants

ABSTRACT

ConditionCOVID-19 Pandemic

InterventionDiagnostic Test two-dimensional speckle tracking echocardiography

Primary outcome:Left atrial strain

Criteria
Inclusion Criteria

- 1. Patients having been diagnosed with SARS-CoV-2 Omicron variant infection based on
real-time reverse-transcription polymerase chain reaction (RT-PCR) results; 2.
Asymptomatic or mild to moderate COVID-19 patients. 3.COVID-19 patients who came to
our hospital for echocardiography within 3 months after recovery.

Exclusion Criteria

- Patients with decreased left ventricular ejection fraction (less than 50%), left
ventricular segmental wall motion abnormalities, cardiomyopathy, severe valvular heart
disease, arrhythmia, thyroid dysfunction, pulmonary hypertension, past or current
pulmonary embolism, severe chronic obstructive pulmonary disease, malignancy/renal
failure (less than 30) ml/min) or poor cardiogram image quality were excluded from the
study.