EPS combined with catheter ablation serves both diagnostic and therapeutic roles in managing cardiac arrhythmias. It identifies abnormal electrical pathways causing irregular heartbeat then destroys them selectively to restore rhythm stability.

• Symptoms motivating EPS include palpitations, dizziness, unexplained syncope, or documented arrhythmias resistant to medication treatment.
• The study involves inserting electrode catheters into heart chambers via veins enabling mapping of electrical impulses propagation within myocardium structures.
• If an aberrant focus or reentry circuit responsible for arrhythmia is discovered during EPS, ablation employs radiofrequency energy delivered through catheters to eliminate problematic tissue areas immediately thereafter.'

An implantable cardioverter defibrillator is a device placed under the skin that monitors heart rhythm and automatically delivers shocks if dangerous arrhythmias occur. It prevents sudden cardiac death.

• Conditions leading to ICD placement include ventricular tachycardia or fibrillation that risk life-threatening irregular heartbeats.
• Diagnostic tools include electrocardiograms (ECG), Holter monitoring, and electrophysiology studies that identify arrhythmia severity and origin.
• The ICD implantation procedure involves minor surgery under local anesthesia where leads are positioned inside heart chambers connected to the device generator implanted below the collarbone.
• Following implantation, regular follow-up ensures device function and battery longevity with minimal lifestyle adjustments required by most patients.

This technology provides continuous protection against fatal arrhythmias while allowing patients to maintain active lives safely.

Coronary artery bypass grafting is a surgical procedure aimed at improving blood flow to the heart muscle when coronary arteries are blocked or narrowed. It involves creating a new pathway around the obstructed vessels.

• The primary cause is the buildup of fatty deposits called plaques inside coronary arteries, leading to reduced oxygen supply and chest pain.
• Diagnosis typically relies on angiography, stress tests, and clinical evaluation of symptoms such as angina and shortness of breath.
• Treatment includes open-heart surgery where healthy blood vessels from other parts of the body are grafted to bypass the blockage.
• Recovery may involve hospital stay for monitoring followed by cardiac rehabilitation exercises and lifestyle modifications.
• This surgery is recommended for patients with severe artery blockages not amenable to less invasive treatments like stenting.

With appropriate care post-surgery, patients often experience significant relief from symptoms and improved quality of life.