Where is the Cavotricuspid isthmus?
right atrium
The cavotricuspid isthmus (CTI) is a part of the right atrium located between the inferior vena cava (IVC) ostium and the tricuspid valve.
What does CTI ablation stand for?
Cavotricuspid isthmus
Cavotricuspid isthmus (CTI) ablation is the treatment of choice in preventing recurrences of typical atrial flutter (AFl).
What is CTI line?
A CTI line — or cavo-tricuspid isthmus line — is placed to interrupt the reentrant circuit. Success rate is high and complication risk is low.
What is CTI dependent atrial flutter?
Common atrial flutter that revolves around the tricuspid annulus gives rise to stereotypical flutter waves. It is referred to as CTI dependent because ablation that interrupts conduction through the isthmus between the annulus and inferior vena cava abolishes the arrhythmia.
What is anatomical isthmus?
In anatomy, isthmus refers to a constriction between organs. This is a list of anatomical isthmi: “Isthmus” the mesencephalon (midbrain)-rhombencephalon (hindbrain) boundary.
What is DCCV in cardiology?
Background: Direct current cardioversion (DCCV) is a common rhythm control strategy in patients with symptomatic atrial fibrillation or flutter. There is no long-term data regarding the safety of DCCV in patients with endocardial left atrial appendage occlusion (LAAO) devices.
What is the sinus Venarum?
The posterior part of the right atrium is termed the sinus venarum; also, it includes most of the lateral wall of the chamber. It has a relatively smooth surface compared to the anterior part. The posterior and anterior walls merge at the crista terminalis.
Is Panama an Isthmus?
The formation of the Isthmus of Panama – a strip of land that separates the Caribbean Sea from the Pacific Ocean, and connects North and South America– is considered one of the most important geologic, oceanographic, and biogeographic events ever, but the exact timing of the final closure of the Isthmus has become …
What is your LAA?
The left atrial appendage (LAA) is a small, ear-shaped sac in the muscle wall of the left atrium (top left chamber of the heart).
What is the pathophysiology of cavotricuspid isthmus (CTI)?
The cavotricuspid isthmus (CTI) had a complex architecture with an anisotropic conduction property. An incremental pacing from the low right atrial isthmus produced a conduction delay and block, and initiated atrial flutter. Radiofrequency catheter ablation of the CTI was very effective in eliminating the typical atrial flutter.
Does cavotricuspid isthmus cause atrial flutter?
The cavotricuspid isthmus (CTI) had a complex architecture with an anisotropic conduction property. An incremental pacing from the low right atrial isthmus produceda conduction delay and block, and initiated atrial flutter.
What is the vena cava-tricuspid isthmus?
They introduced the term “inferior vena cava-tricuspid isthmus”. Since then the concept that this area serves as an electrophysiologic isthmus has been generally acknowledged and the term used often is shortened to either “tricuspid cavo isthmus”, “posterior isthmus” or “flutter isthmus”.
What is the posterior isthmus?
The area between the Eustachian valve or ridge posteriorly, and the hinge of tricuspid valve anteriorly, is described by an electrophysiologist as the posterior isthmus. In reality, with heart in the anatomic position, this component is inferior, and forms the base of the quadrilateral area.