What is Primary PCI and why is it important for heart attacks?

Primary PCI (Percutaneous Coronary Intervention) is an emergency catheter procedure used to open blocked coronary arteries during an acute heart attack (STEMI). It immediately restores blood flow to the heart muscle, significantly minimizing cardiac damage and reducing mortality.

What is the difference between IVUS and OCT coronary imaging?

IVUS (Intravascular Ultrasound) uses sound waves to view deep arterial wall layers, ideal for heavy calcification and vessel sizing. OCT (Optical Coherence Tomography) uses light waves to provide ultra-high 10-micron resolution scans of stent positioning, micro-tears, and thrombus formation.

What is TAVR (Transcatheter Aortic Valve Replacement)?

TAVR is a minimally invasive catheter-based procedure to replace a damaged aortic valve without open-heart surgery. It offers faster recovery, less pain, and shorter hospital stays, particularly for severe aortic stenosis patients.

When should I consult an Interventional Cardiologist in Chennai?

You should consult an interventional cardiologist if you experience chest pain, pressure, breathlessness, irregular heartbeat, abnormal ECG/TMT results, or if your physician recommends coronary angiography or angioplasty.

What is Rotational Atherectomy (Rotablation) and Intravascular Lithotripsy (IVL)?

Rotational Atherectomy uses a diamond-tipped burr spinning at high speeds to shave hard, calcified plaque inside heart arteries. Intravascular Lithotripsy (IVL) uses sonic shockwaves to break up severe calcium deposits before stent deployment.

Where does Dr. Nithesh Kumar practice in Chennai?

Dr. Nithesh Kumar practices as a Full-time Consultant Interventional Cardiologist at Kauvery Hospital, Vadapalani, Chennai. He is also a Visiting Consultant at Panimalar Medical College and Hospital, Poonamallee, Chennai.

Dr. Nithesh Kumar | Interventional Cardiologist in Chennai

About
Dr. Nithesh Kumar

Consultant – Interventional Cardiology at Kauvery Hospital, Vadapalani, Chennai

Welcome to the official medical portal of Dr. A. Nithesh Kumar, an Interventional Cardiologist dedicated to providing world-class cardiovascular care using state-of-the-art minimally invasive techniques in Chennai.

With over a decade of extensive medical experience in coronary interventions and structural heart therapies, Dr. Nithesh Kumar specializes in treating complex heart conditions through catheter-based interventions that reduce recovery time, minimize surgical trauma, and maximize patient outcomes.

His clinical expertise encompasses the full spectrum of modern interventional cardiology: coronary angiography, primary PCI for heart attacks, complex angioplasty, intravascular imaging (IVUS and OCT), coronary physiology (FFR/iFR), rotational atherectomy (Rotablation), intravascular lithotripsy (IVL), chronic total occlusion (CTO) recanalization, bifurcation stenting, left main interventions, mechanical circulatory support (Impella/ECMO), and transcatheter aortic valve replacement (TAVR).

Beyond clinical practice, Dr. Nithesh Kumar is deeply involved in cardiovascular research, medical education, and clinical trials. He serves as an expert faculty member at Apollo Simulation Center and has presented breakthrough cases at premier global conferences including EuroPCR Paris, TCTAP Seoul, and NIC India.

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Years Experience

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Procedures Performed

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Happy Patients

Qualifications & Training

2021–2024

DM Interventional Cardiology

Gold Medalist - Best Outgoing Student

2017–2020

MD General Medicine

Advanced Internal Medicine & Critical Care

2010–2016

MBBS

Bachelor of Medicine and Bachelor of Surgery

Clinical Expertise & Core Services

Comprehensive cardiac care utilizing global evidence-based guidelines and cutting-edge catheterization technology.

Coronary Angiography

Diagnostic arterial imaging for precise block detection.

Complex Angioplasty (PCI)

Advanced drug-eluting stent (DES) placement.

Left Main Interventions

Critical stenting for main coronary artery disease.

Bifurcation PCI

Precision stenting for arterial branch junctions.

CTO Intervention

Recanalization of 100% chronic total arterial blockages.

Rotational Atherectomy

Rotablation micro-burr drilling for severe arterial calcium.

Intravascular Lithotripsy (IVL)

Sonic shockwave treatment for calcified coronary arteries.

IVUS & OCT Guided PCI

High-definition intravascular ultrasound & optical coherence imaging.

FFR / iFR Physiology

Functional pressure measurement to assess stent necessity.

High-Risk MCS PCI

Protected angioplasty supported by Impella / ECMO.

TAVR / Structural Heart

Transcatheter valve replacement without open surgery.

Preventive Cardiology

Comprehensive risk assessment, lipid management, & care.

Detailed Medical & Interventional Procedures

In-depth clinical overview of specialized cardiac therapies available under Dr. Nithesh Kumar's care at Kauvery Hospital Chennai.

Primary PCI & Heart Attack Care

Emergency cardiac catheterization (Primary Angioplasty) performed immediately during acute heart attacks (STEMI). Restores vital blood supply within the golden hour to protect heart muscle functionality.

Emergency 24/7 Care

IVUS & OCT Coronary Imaging

Intravascular Ultrasound (IVUS) and Optical Coherence Tomography (OCT) provide high-resolution internal artery visualization to accurately size stents, confirm expansion, and prevent stent restenosis.

Precision Diagnostic

FFR & iFR Physiology Testing

Fractional Flow Reserve (FFR) measures pressure gradients across intermediate coronary blockages to objectively determine whether stenting or medical management yields optimal long-term benefits.

Physiology-Guided

Transcatheter Aortic Valve (TAVR)

Minimally invasive replacement of a severely narrowed aortic valve using catheter delivery through the femoral artery, eliminating the need for open-heart surgery and chest opening.

Structural Heart

CTO PCI (Chronic Total Occlusion)

Specialized retrograde and anterograde crossing techniques to reopen long-standing, 100% blocked coronary arteries, restoring natural circulation and relieving chronic chest pain.

Complex Intervention

Rotablation & IVL Shockwave

Rotational Atherectomy and Intravascular Lithotripsy break apart heavily calcified, hardened plaque within arteries, enabling seamless stent deployment in complex calcified lesions.

Calcified Lesion Tech

Why Choose Dr. Nithesh Kumar

A steadfast commitment to medical excellence, patient safety, and compassionate cardiac care.

Evidence-Based Medicine

Strictly applying globally recognized ESC, ACC, and AHA clinical treatment guidelines.

Patient-First Compassion

Tailored care plans focused on patient comfort, clear communication, and empathetic support.

Minimally Invasive Techniques

Radial artery access and advanced catheter options for painless recovery and early discharge.

Advanced Coronary Imaging

Precision diagnostics using high-definition IVUS, OCT, and FFR cath lab technology.

Personalized Rehabilitation

Comprehensive long-term care management from diagnostic screening through recovery.

Emergency Cardiac Response

Rapid emergency cath lab activation for critical heart attack (STEMI) cases in Vadapalani.

Achievements & Accolades

Recognized for academic excellence, innovative research, and leadership in interventional cardiology.

Gold Medalist

Best Outgoing Student in DM Interventional Cardiology.

RCS England Certification

Certified in Transesophageal Echocardiography (TEE) by the Royal College of Surgeons, England.

Expert Faculty

Faculty member & instructor at Apollo Simulation Center.

BCBR Research Certified

Basic Course in Biomedical Research certification (ICMR/NBE).

Shining Star Award

Recognized as a Shining Star in Interventional Cardiology.

International Conference Presentations & Research

CHIP INDIA 2025

Best Case Award Winner

Complex ECMO-assisted High Risk PCI presentation.

EURO PCR 2025

Prestigious Oral Presentation

Paris, France. Global Interventional Cardiology Congress.

TCTAP Seoul

Seoul, South Korea. International Cardiology Conference.

NIC 2024

National Interventional Council.

Top 10 NIC Case Selection

TIC 2024

Tamil Nadu Interventional Council presentation.

ICCCON 2024

Interventional Cardiology Conference.

AICC 2024

Cardiology Congress Research Session.

SCIP 2024

Structural Cardiac Intervention Program.

Session Moderator – Structural Heart Disease

Swipe to explore full conference timeline

In the Media & Press Coverage

Featured medical insights and newspaper coverage on cardiac health advancements.

Dr. Nithesh Kumar Newspaper Coverage on Cardiac Interventions

Patient Reviews & Testimonials

Real patient experiences and heartfelt words of gratitude.

"Dear Dr. Nithesh,

I am writing to express my deepest gratitude for your timely and exceptional care during my father's (S. Gopalakrishnan) recent medical emergency in Panimalar Hospital. Your swift actions, expertise, and reassuring presence during such a critical moment truly made all the difference for our family.

On this Doctors' Day, we celebrate not just your profound skill as a physician, but your dedication and compassion as a healer.

Thank you for saving a life and for being a true pillar of strength when we needed it most."

- Charanya G

"We recently consulted with Dr. Nithesh Kumar (cardiologist) for my father's cardiac concerns, and we are very satisfied with the experience. The doctor was attentive, thorough in the examination, and took the time to explain everything clearly. My father felt comfortable and well-cared for throughout the process. We truly appreciate the professionalism and compassionate approach. Highly recommended for anyone seeking quality cardiac care in Chennai."

- Naresh Kumar

Hospital Associations & Practice Locations

Providing advanced cardiac procedures at premier healthcare institutions in Chennai.

Kauvery Hospital, Vadapalani

Full-time Consultant Interventional Cardiologist. A state-of-the-art multi-specialty hospital featuring 24/7 cardiac catheterization labs, cardiac ICU, and advanced imaging technology.

Visit Hospital Profile

Panimalar Medical College & Hospital

Visiting Consultant – Interventional Cardiology

Poonamallee, Chennai, Tamil Nadu

Frequently Asked Questions

Answers to common patient inquiries regarding cardiac health, angioplasty, and recovery.

What is Primary PCI and why is it essential during a heart attack?

Primary PCI (Percutaneous Coronary Intervention) is an emergency catheter procedure used to reopen acutely blocked heart arteries during a STEMI heart attack. Performed within the first critical hours, it restores arterial blood flow immediately, preserving heart muscle tissue and significantly lowering patient risk.

How do IVUS and OCT improve stent placement accuracy?

Intravascular Ultrasound (IVUS) uses high-frequency sound waves while Optical Coherence Tomography (OCT) uses light waves inside the coronary artery. Both techniques produce precise 3D cross-sectional images, ensuring the stent is perfectly sized, completely expanded against the vessel wall, and aligned to prevent future stent thrombosis or re-narrowing.

What is TAVR and who is eligible for it?

TAVR (Transcatheter Aortic Valve Replacement) is a catheter procedure that replaces a diseased aortic valve without open-heart surgery. It is ideal for elderly or high-risk patients suffering from severe aortic stenosis who benefit from faster healing and minimal hospital stay.

How long is recovery after a coronary angioplasty?

Most patients undergoing radial (wrist) angioplasty can walk within a few hours and are discharged within 24 to 48 hours. Light daily activities can usually resume within a few days, following personalized medication and cardiac rehabilitation guidance.

How do Rotablation and IVL treat heavy arterial calcium?

When coronary arteries become hardened by heavy calcium, standard balloons cannot expand. Rotablation uses a high-speed diamond burr to gently ablate calcium, while IVL (Intravascular Lithotripsy) uses sonic pulses to fracture calcium beneath the vessel lining, enabling full stent expansion.

How can I schedule a consultation with Dr. Nithesh Kumar?

You can schedule an appointment by calling +91 90436 22605 or visiting the outpatient department at Kauvery Hospital, Vadapalani, Chennai.

Medical Information Disclaimer

The content provided on this website is for informational and educational purposes only and does not constitute formal medical diagnosis, treatment, or advice. Always consult a qualified cardiologist or physician regarding any specific heart condition or symptoms. Registered Medical Practitioner, Tamil Nadu Medical Council.