Sick Sinus Syndrome comes in three flavors, all with different causes: • Sinoatrial block: Slower than normal heart beat caused by electrical signals that slow down when passing through the sinus node. • Sinus arrest: To go back to the musical analogy, think of a “rest” (a musical ...
At rest, a healthy sinus node produces electrical impulses for a heart rate of between 60 and 100 beats per minute. This is anormal sinus rhythmor normal heart rhythm.1 Sick sinus syndrome occurs when damage or disease to the sinus node causessinusarrhythmia(irregular sinus signals) that is ...
Sick sinus syndromeis due to defective sinus nodes. The sinus nodes are the natural pacemakers in the heart. Heart rhythms will beat too quickly or, more commonly, too slowly when malfunctioning. Conduction blockis a heart rhythm condition caused by a breakdown in the flow of the electrical pu...
thus pumping blood through the body. It is made up of several different parts, including a sinoatrial (sinus) node. The sinus node is a small collection of tissue. It can be found in the heart's upper right chamber.
Heart rate vs. pulse rate While the two go hand in hand, they are different. Your heart rate is a measure of the number of times yourheart beatsin a minute. With each beat, your heart squeezes. That creates enough pressure to push blood out of your heart to the rest of your body ...
Blood tests may be done to see if you have any heart damage. They may also be used to find the cause of your bradycardia. Echocardiography is a type of ultrasound. Sound waves are used to create pictures of your heart as it beats. An ECG records the electrical activity of your heart....
Metoprolol succinate extended-release tablet is contraindicated in severe bradycardia, second or third degree heart block, cardiogenic shock, decompensated cardiac failure, sick sinus syndrome (unless a permanent pacemaker is in place), and in patients who are hypersensitive to any component of this ...
Premature atrial beat trigeminy could have also explained the group beating of the P-waves. However, the similarity of the P-wave morphologies and the confirmation of the diagnosis of sick sinus syndrome by electrophysiology study made this diagnosis unlikely and suggested the SANW as the cause ...
Tethered spinal cord syndrome is a rare neurological disorder where the spinal cord is attached, or tethered, to the tissues around the spine. This tethering of the spinal cord restricts its movements and prevents it from keeping up with its ongoing growth as the body grows. This causes the ...
Normal rhythms originate in the sino-atrial node, a specialized cardiac tissue consisting of only a few thousands of nodal pacemaker cells. Malfunction of pacemaker cells due to diseases or aging leads to rhythm generation disorders (for example, bradycardias and sick-sinus syndrome (SSS)), which...