Explanting Chronic Coronary Sinus Leads.
1Cardiac Arrhythmia Service, Massachusetts General Hospital, 75 Fruit Street, Boston, MA 02114, USA.
Cardiac Electrophysiology Clinics
|February 6, 2019
Summary
Cardiac resynchronization therapy (CRT) is standard for heart failure patients with reduced ejection fraction. Growing use leads to more device procedures, including lead revisions and replacements after extraction.
Area of Science:
- Cardiology
- Medical Devices
Background:
- Cardiac resynchronization therapy (CRT) is a standard treatment for symptomatic heart failure with reduced ejection fraction and wide QRS.
- Increasing CRT indications have led to a rise in device implantations.
Purpose of the Study:
- To highlight the long-term implications of CRT device longevity.
- To address the rising need for device-related procedures in CRT patients.
Main Methods:
- Review of current clinical practices and outcomes related to CRT.
- Analysis of trends in CRT implantation and device management.
Main Results:
- CRT is established for specific heart failure patient profiles.
- Longer device survival necessitates more interventions like lead revision and extraction.
Conclusions:
- The increasing prevalence and longevity of CRT devices are driving a greater demand for associated procedural interventions.
- Managing long-term CRT device complications, such as lead issues, is becoming a significant clinical consideration.
Related Concept Videos
Coronary Circulation
7.2K
The heart, an organ critical to survival, gets nourishment not from the blood it pumps but from a separate circulation system known as coronary circulation. This is the shortest circulation in the body and is responsible for supplying the heart with the nutrients it needs to function effectively.
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
7.2K
ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
821
Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
821
Phase-lead and Phase-lag Controllers
544
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
544
Coronary Artery Disease I: Introduction
1.1K
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
1.1K
Coronary Artery Disease II: Pathophysiology
426
Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
426
Acute Coronary Syndrome I: Introduction
958
Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
958


