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Recognition of pre-potentials during activation mapping of aortic cusp premature ventricular contractions is useful to localize the precise site of origin and is an indicator of successful ablation, but sometimes these electrograms can be blunt and have low amplitude. High resolution mapping in the aortic cusp region allows improved near field detection of these signals in very few beats.
This article was published in the following journal.
Name: Journal of electrocardiology
The short answer to this topic is "No, most incompetent bicuspid aortic valve should not be repaired". Aortic valve repair certainly plays an important role in the management of incompetent bicuspid a...
Aortic valve tissue is largely exposed to high blood flow. Cells belonging to aortic valve tissues are able to detect and respond to flow conditions changes. Bicuspid aortic valve (BAV) presents alter...
High-definition/ultra-high-definition mapping, owing to an impressive increase of the point density of electroanatomic maps, provides improved substrate characterization, better understanding of the a...
Ultra-high-density voltage mapping (uHD M) is a new tool that can add new insights in the pathophysiology of atrial fibrillation (AF). The aim of this study was to evaluate the performance of uHD M in...
Native T1 times from T1 mapping cardiac magnetic resonance (CMR) are associated with myocardial fibrosis in aortic stenosis (AS). We investigated whether changing patterns in native T1 predict clinica...
There is increasing evidence that having AF is associated with some scarring of the upper chamber of the heart, the left atrium. There is also evidence that the amount of scarring can pred...
Aortic stenosis is a common heart valve disease and due to the growing elderly population the prevalence is increasing. The disease is progressive with increasing calcification of the valv...
In this clinical investigation, the safety and feasibility of the novel EnSite™ HD Grid Catheter mapping system for advanced high-density three-dimensional mapping will be studied in pat...
Many cardiologists are convinced that early surgery in asymptomatic aortic stenosis (AS) saves lives. However there is currently no direct evidence for this and most recommendations from t...
This study uses two AcQMap imaging and electroanatomical mapping systems (Acutus Medical) to simultaneously visualise and map patterns of wavefront propagation in both the left and right a...
The dilatation of the aortic wall behind each of the cusps of the aortic valve.
The downward displacement of the cuspal or pointed end of the trileaflet AORTIC VALVE causing misalignment of the cusps. Severe valve distortion can cause leakage and allow the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to aortic regurgitation.
Abnormalities in the serum levels of LIPIDS, including overproduction or deficiency. Abnormal serum lipid profiles may include high total CHOLESTEROL, high TRIGLYCERIDES, low HIGH DENSITY LIPOPROTEIN CHOLESTEROL, and elevated LOW DENSITY LIPOPROTEIN CHOLESTEROL.
Surgical treatment for severe AORTIC VALVE STENOSIS. Transcatheter aortic valve replacement (TAVR) is used as an alternative option in patients who are deemed at high risk or inoperable for traditional open-heart surgery.
Conditions with abnormally low levels of LIPOPROTEINS in the blood. This may involve any of the lipoprotein subclasses, including ALPHA-LIPOPROTEINS (high-density lipoproteins); BETA-LIPOPROTEINS (low-density lipoproteins); and PREBETA-LIPOPROTEINS (very-low-density lipoproteins).