Tag: prognosis

Kwas moczowy jest końcowym produktem katabolizmu zasad purynowych, powstającym w wyniku ciągu reakcji katalizowanych przez enzym oksydazę ksantynową. Ubocznym produktem tych reakcji są wolne rodniki tlenowe, które mogą uszkadzać struktury serca i naczyń.

Fragmentation of QRS (fQRS) complex is an easily evaluated non-invasive electrocardiographic parameter. Fragmentation of narrow QRS is defined as presence of an additional R wave (R′) or notching in the nadir of the S wave, or the presence of > 1 R′ in 2 contiguous leads, corresponding to a major coronary artery territory on the resting 12-lead ECG. Fragmentation of wide complex QRS consists of various RSR patterns, with more than 2 R waves (R′′) or more than 2 notches in the R wave, or more than 2 notches in the downstroke or upstroke of the S wave.

Platelet activation plays a pivotal role for the initiation of acute coronary syndromes. Platelet size has been shown to correlate with their function. Large platelets are considered metabolically and enzymatically more reactive than smaller ones [1]. Increased mean platelet volume (MPV) is associated with extent of slow coronary flow [2]. MPV has been reported as increased in unstable angina pectoris and myocardial infarction (MI) [3]...

A high rate of unexplained syncope in various clinical settings, involving enormous resources for diagnosis and therapy, justifies the constant search for effective evaluation strategies. In most patients with syncope, electrocardiography (ECG) findings established as diagnostic [1] do not recur during the 24-h ECG monitoring period. Thus, the true yield of the standard Holter ECG assessment in an unselected population is as low as 1–2%...