![conducdtion system of the heart pdf basics conducdtion system of the heart pdf basics](http://2.bp.blogspot.com/-qYRaxav8B0Q/VXhfht_fB5I/AAAAAAAACco/D8D6CCM6-Fg/w1200-h630-p-k-no-nu/betablockers%2Band%2Bheart%2Bfailure.png)
Second degree block in which some impulses from SA node only get conducted to the ventricles. First degree block wherein there will be delayed conduction of impulse from the SA node. We also discuss from anatomical perspective, the differences seen clinically with His bundle pacing and left bundle branch area pacing. In complete heart block, there will be delayed conduction or no conduction of impulse to ventricular muscle fibers from the SA node. The remarkable evolution in technology has led to visualization of the cardiac conduction system using noninvasive, nondestructive high-resolution contrast-enhanced micro-computed tomography imaging that may aid in future CSP. This review details the anatomy of the cardiac conduction system, and highlights some of the recently published articles that aid in better understanding of the AV conduction axis and its variations, the knowledge of which is critical for CSP. Your family history, personal health history and lifestyle all affect how well your heart works. It also works with other body systems to control your heart rate and blood pressure. The clinical experience from performing CSP has helped electrophysiologists gain deeper insight into the anatomy and physiology of cardiac conduction system. Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body. The cardiac conduction system is a network of specialized cardiac muscle cells that initiate and transmit the electrical impulses responsible for the. The heart measures 12 x 8.5 x 6 cm and weighs 310 g (males) and 255 g (females) Relations. It is positioned posteriorly to the body of the sternum with one-third situated on the right and two-thirds on the left of the midline. The inherent limitations of implanting the leads in the His bundle region has led to the emergence of left bundle branch area pacing in the past 3 years as an alternative strategy for CSP. The heart has a somewhat conical form and is enclosed by the pericardium.
![conducdtion system of the heart pdf basics conducdtion system of the heart pdf basics](https://i.pinimg.com/originals/2a/27/d5/2a27d52e11a9e4c99bf8dd04d76436e6.png)
Over the past 2 decades, there has been a resurgence of conduction system pacing (CSP) by implanting pacing leads in the His bundle region in lieu of chronic right ventricular pacing that is associated with worse clinical outcomes. Although the atrioventricular (AV) conduction axis was described more than a century ago by Sunao Tawara, the anatomic pathway for propagation of impulse from atria to the ventricles has been a topic of debate for years. The specialized cardiomyocytes that constitute the conduction system in the human heart, initiate the electric impulse and result in rhythmic and synchronized contraction of the atria and ventricles.