RESEARCH PAPERS

1. A Meta-analysis of Major Complications between Traditional Pacemakers and Leadless Pacemakers
2. Risk of Target Organ Damage in Patients with Masked Hypertension versus Sustained Hypertension:A Meta-analysis
3. Relation between Cardiac Injury and Elevated Levels of Inf lammatory Biomarkers in Patients with Severe COVID-19
4. ECMO/CRRT Combined Support in the Treatment of Critically Ill SARS-CoV-2 Pneumonia Patients
5. Predictive Value of Blood Pressure,Heart Rate,and Blood Pressure/Heart Rate Ratio in a Chinese Subpopulation with Vasovagal Syncope

CASE REPORTS

1. Implantation of an S-ICD in a Patient with a DDD Pacemaker and Congenitally Corrected Transposition of the Great Arteries
2. The Challenges of Treating Acute Myocardial Infarction due to Variant Angina:Lesson from an Interesting Case

COMMENTARY

1. Coronavirus 19 (some thoughts about the Disease)