LETTER TO THE EDITOR

1. Extracorporeal membrane oxygenation successfully treated massive right ventricular myocardial infaction with aneurysm
2. Takotsubo syndrome presenting with left bundle branch block in an octogenarian. Is hyponatremia a pathogeni c “common ground”?
3. The feasibility of leadless pacemaker implantation in nonagenarians: case report and literature review

RESEARCH ARTICLE

1. Long-term outcome of percutaneous or surgical revascularization with and without prior stroke in patients with threevessel disease
2. Relationship between arterial stiffness and cognitive function in outpatients with dementia and mild cognitive impairment compared with community residents without dementia
3. Serum triglycerides concentration in relation to total and cardiovascular mortality in an elderly Chinese population
4. The predictive value of triglyceride-glucose index for in-hospital and one-year mortality in elderly non-diabetic patients with ST-segment elevation myocardial infarction
5. Inflammation-based different association between anatomical severity of coronary artery disease and lung cancer
6. Effect of uninterrupted dabigatran or rivaroxaban on achieving ideal activated clotting time to heparin response during catheter ablation in patients with atrial fibrillation