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Chronic pericarditis however is less common, a form of which is constrictive pericarditis. The following is the clinical classification of acute vs. chronic: [citation needed] Clinically: Acute (<6 weeks), Subacute (6 weeks to 6 months) and Chronic (>6 months)
For acute pericarditis to formally be diagnosed, two or more of the following criteria must be present: chest pain consistent with a diagnosis of acute pericarditis (sharp chest pain worsened by breathing in or a cough), a pericardial friction rub, a pericardial effusion, and changes on electrocardiogram (ECG) consistent with acute pericarditis ...
The diagnosis of purulent pericarditis requires a combination of clinical assessment, laboratory tests, and imaging studies. Pericardiocentesis with evaluation of pericardial fluid by culture and microscopy is necessary to make the diagnosis, however several other findings may increase the likelihood of purulent pericarditis.
Constrictive pericarditis is a condition characterized by a thickened, fibrotic pericardium, limiting the heart's ability to function normally. [1] In many cases, the condition continues to be difficult to diagnose and therefore benefits from a good understanding of the underlying cause.
Acute coronary syndrome (ACS) is a syndrome due to decreased blood flow in the coronary arteries such that part of the heart muscle is unable to function properly or dies. [1] ...
In medicine, Friedreich's sign is the exaggerated drop in diastolic central venous pressure seen in constrictive pericarditis (particularly with a stiff calcified pericardium) and manifested as abrupt collapse of the neck veins or marked descent of the central venous pressure waveform. The normal jugular venous waveform contains two descents, x ...
But other findings that may be seen in perimyocarditis (a combination of pericarditis and myocarditis) include PR segment depression, PR segment depression with associated ST segment elevation, diffuse ST segment elevation (in a pericarditis pattern). [40] ST segment elevation was seen in 62% of people with myocarditis. [31]
Myopericarditis is a combination of both myocarditis and pericarditis appearing in a single individual, namely inflammation of both the pericardium and the heart muscle. It can involve the presence of fluid in the heart .