Cardiac function is the ability of the heart to meet the metabolic demands of the body.The delivery of oxygenated blood andremoval of cellular waste products is fundamental to life. Oxygen demand will increase as a result of elevated metabolicneed. Cardiology is a branch of medicine dealing with disorders of the heart as well as parts of the circulatory system.The fieldincludes medical diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heartdisease and electrophysiology. The present book is aimed to create a combined collection of study material for medicalprofessionals, researchers and students to understand outcome of recent cardiac researchers at a glance. The chapters havebeen written by the renowned and internationally established cardiologists. The book covers many topics of current interestto cardiologists and physiologists ranging from cardiac conducting system to recent therapeutic approaches and researchesmade in the area of heart treatment therapies. This book grasps and keeps vital information, succinct text, and dynamicillustrations that facilitate learning in a highly visual approach.