Chairman & Chief Cardiac Surgeon, Medanta – The Medicity
License VerifiedActive & In Good Standing
ID: DMC-11480
Delhi Medical Council (DMC) & Medical Council of India (MCI)
Professional Background & Bio
Dr. Naresh Trehan is a world-renowned cardiovascular and cardiothoracic surgeon, Founder, and Chairman of Medanta – The Medicity, Gurugram. With over 40 years of pioneering surgical experience, he has performed more than 48,000 successful open-heart surgeries and leads cardiovascular clinical literacy at mediguide4u.
“Myocardial Revascularization and Hemodynamic Stabilization in Off-Pump Coronary Artery Bypass Grafting (OPCAB)”
Institution: New York University Medical Center (NYU) & KGMU
Seminal surgical research on novel techniques for total arterial revascularization, beating-heart bypass mechanics, and organ preservation during high-risk cardiothoracic surgery without cardiopulmonary bypass.
Dr. Trehan reports zero commercial conflicts of interest or pharmaceutical sponsorships. Clinical reviews adhere strictly to ESC, AHA, and CSI practice guidelines.
Articles Written by Dr. Naresh Trehan, MBBS, MD, FACS
Educational healthcare resources created for public health literacy.
Hypertension (BP ≥ 130/80 mmHg) is the leading modifiable risk factor for stroke, myocardial infarction, and chronic kidney disease. Learn the exact physiological mechanisms of non-pharmacological blood pressure reduction, including the dietary DASH protocol, sodium-potassium balance, isometric exercise, and autonomic stress modulation.
Coronary Artery Disease (CAD) is the leading cause of mortality worldwide, resulting from atherosclerotic plaque accumulation within the epicardial coronary vessels. Explore modern diagnostic algorithms (Coronary Artery Calcium scoring, CT Coronary Angiography), medical management (high-intensity statins, beta-blockers, ACE inhibitors), and revascularization indications.
Atrial Fibrillation (AFib) is the most common sustained cardiac arrhythmia, characterized by chaotic, disorganized electrical impulses firing in the atria at 300–600 bpm. Explore clinical stroke risk stratification using the CHA2DS2-VASc score, modern Direct Oral Anticoagulants (DOACs), rate vs. rhythm control strategies, and catheter pulmonary vein isolation.
Atherogenic dyslipidemia is a primary modifiable risk factor for atherosclerotic cardiovascular disease. Explore modern lipid science beyond basic total cholesterol—including Apolipoprotein B (ApoB), Non-HDL cholesterol, Lipoprotein(a), evidence-based statin dosing algorithms, and modern non-statin therapies (Ezetimibe, PCSK9 inhibitors).
Heart failure with preserved ejection fraction (HFpEF) occurs when the left ventricle becomes thick or stiff, preventing normal diastolic filling despite normal pumping capacity. Understand diagnostic markers like NT-proBNP, echocardiogram E/e' ratios, and evidence-based treatments including SGLT2 inhibitors and blood pressure control.
Peripheral artery disease (PAD) is caused by atherosclerotic narrowing in the lower extremity arteries, leading to exertional leg cramping (claudication), cold extremities, and slow-healing sores. Review diagnostic ABI thresholds, antiplatelet therapy, and supervised walking protocols.
Heart palpitations—the sensation of skipped beats, fluttering, or pounding in the chest—are most commonly caused by benign ectopic beats like PVCs and PACs. Learn how autonomic balance, electrolytes, and stimulants trigger extra beats, diagnostic monitoring methods, and warning signs requiring prompt medical evaluation.