Items tagged “cardiac”
92 results found
Article
Right ventricle
The right ventricle (RV) is the most anterior of the four heart chambers. It receives deoxygenated blood from the right atrium (RA) and pumps it into the pulmonary circulation. During diastole, blood enters the right ventricle through the atrioventricular orifice through an open tricuspid valve ...
Article
Syphilitic aortitis
Syphilitic aortitis is a form of aortitis which occurs due to syphilis. It usually occurs in tertiary syphilis often 10-30 years after initial infection.
Complications
progression into a luetic aneurysm
aortic valvular insufficiency
coronary ostial involvement with coronary ostial stenosis
...
Case
Tubular origin of right coronary artery
Published
21 Apr 2018
92% complete
CT
Article
Aorto-ventricular tunnel
Aorto-ventricular tunnel (AVT) is an extremely rare form of congenital heart disease, representing an anomalous extracardiac communication between the ascending aorta and the left or right ventricles.
Terminology
In most cases the anomalous communication is between the aorta and the left ventr...
Article
Atrial septal occlusion device
Atrial septal occlusion devices are implantable cardiac devices used in patients with certain types of atrial septal defects or patent foramen ovale 4.
They are used in cases of atrial septal defects with right atrial or ventricle enlargement, to prevent paradoxical embolism, left-to-right shun...
Case
Apical 4 chamber view - normal (transthoracic echocardiography)
Published
28 Aug 2018
47% complete
Ultrasound
Article
Right ventricular function (point of care ultrasound)
Right ventricular function is often measured in point-of-care ultrasonography as a composite of the right ventricular size, wall measurements, and contractile efforts.
Terminology
The right ventricle (RV) can be anatomically divided into an inflow portion, an outflow portion, and an apex. Con...
Article
Athlete heart syndrome
Athlete heart syndrome refers to adaptations in both cardiac structure and function seen in people engaged in high-performance and endurance physical exercise.
Epidemiology
The prevalence of the condition has increased due to the increased popularity of recreational exercise, approx 3.6/100,00...
Article
Transesophageal echocardiography
A standard transesophageal echocardiography (TOE, or TEE in US English) is a type of echocardiography using an endoscopic transducer, which is advanced into the thoracic esophagus, offering generally superior visualization of the great vessels and posterior cardiac structures than the standard t...
Article
Brugada syndrome
A cardiac "channelopathy" resulting from mutations in genes coding for cardiac sodium (Na+) channels, the Brugada syndrome is a common cardiac cause of sudden death in patients with structurally normal hearts.
Epidemiology
Age of diagnosis ranges from 2 days to 84 years old. It is estimated to...
Article
De Winter pattern (electrocardiogram)
An electrocardiographic finding suggestive of impending myocardial infarction, the de Winter's pattern (or "de Winter's T-waves") describes an abnormality thought to be indicative of acute occlusion of the proximal left anterior descending coronary artery (LAD) 2. Timely recognition of this patt...
Article
Wolff-Parkinson-White syndrome
The Wolff-Parkinson-White syndrome describes paroxysmal tachydysrhythmias in the presence of a specific accessory pathway which allows direct electrical connection between the atria and ventricles, which usually exclusively occurs via the atrioventricular (AV) node. The accessory pathway is usua...
Article
Left bundle branch block
A form of interventricular conduction defect most often diagnosed on the electrocardiogram, the presence of a left bundle branch block (LBBB) disrupts the normal sequence of ventricular depolarization.
Epidemiology
Aberrant conduction in the left bundle branch producing a conduction block is ...
Article
Single chamber cardiac pacers
Single chamber cardiac pacemakers are cardiac conduction devices with one lead terminating in (most commonly) the right ventricular apex or the right atrium.
Components
Includes one of the following:
lead in the right atrium
lead in the right ventricle
Function
Single chamber atrial pac...
Article
Wall motion score index (echocardiography)
Calculation of the left ventricular wall motion score index (WMSI) with transthoracic echocardiography allows the semi-quantification of left ventricular ejection fraction (LVEF). Calculation of the LVEF with a WMSI demonstrates stronger agreement with measures obtained by cardiac MRI, the gold ...
Article
Effusive-constrictive pericarditis
Effusive-constrictive pericarditis is a rare constrictive pericardial syndrome of a constellation of findings in which a fibrotic visceral pericardium and a pericardial effusion contribute to cardiac tamponade pathophysiology. It is most often encountered after the performance of a pericardiocen...
Article
Chiari network
A Chiari network refers to a filamentous, weblike structure in the right atrium that results from incomplete resorption of the embryonic sinus venosus. It is an uncommon anatomical variant.
Epidemiology
Prevalence estimates for the general population vary widely, ranging from 2%-10% of randoml...
Article
Left ventricular hypertrophy
Left ventricular hypertrophy (LVH) is present when the left ventricular mass is increased. It is a common condition, typically due to systemic hypertension, and it increases with age, obesity and severity of hypertension.
Epidemiology
Studies have demonstrated a prevalence on echocardiography ...
Case
Dual left anterior descending coronary artery type IV
Published
19 May 2020
92% complete
Annotated image
DSA (angiography)
CT
Case
Dextrocardia and pseudocoarctation
Published
04 Dec 2020
92% complete
X-ray
CT