Sick Sinus SyndromeSymptoms, Doctors, Treatments, Advances & More
Sick Sinus Syndrome Overview
Learn About Sick Sinus Syndrome
Sick sinus syndrome (also known as sinus node dysfunction) is a group of related heart conditions that can affect how the heart beats. "Sick sinus" refers to the sino-atrial (SA) node, which is an area of specialized cells in the heart that functions as a natural pacemaker. The SA node generates electrical impulses that start each heartbeat. These signals travel from the SA node to the rest of the heart, signaling the heart (cardiac) muscle to contract and pump blood. In people with sick sinus syndrome, the SA node does not function normally. In some cases, it does not produce the right signals to trigger a regular heartbeat. In others, abnormalities disrupt the electrical impulses and prevent them from reaching the rest of the heart.
Sick sinus syndrome can result from genetic or environmental factors. In many cases, the cause of the condition is unknown.
Sick sinus syndrome accounts for 1 in 600 patients with heart disease who are over age 65. The incidence of this condition increases with age.
Most cases of sick sinus syndrome are not inherited. They are described as sporadic, which means they occur in people with no history of the disorder in their family.
Summary: The goal of this observational post-market clinical Follow-up study is to learn about the long-term safety, performance, and clinical benefits of pacing the left bundle branch area (LBBAP) using the INGEVITY+ pacemaker lead in patients with bradycardia who need a pacemaker.
Summary: The goal of this observational study is to evaluate the impact of different atrial pacing sites-Bachmann's bundle pacing versus right atrial appendage pacing-on the development and progression of atrial cardiomyopathy in patients diagnosed with sick sinus syndrome who are undergoing permanent pacemaker implantation.
Published Date: August 01, 2013
Published By: National Institutes of Health