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Physiological Assessment of Coronary Stenoses and Revascularization Decisions

…the hemodynamic significance of a coronary lesion, with anatomic and functional assessment discordant in a substantial minority of intermediate lesions. Over the past three decades…

T-waves in ischemia: hyperacute, inverted (negative), Wellen's sign & de Winter's sign

…finding). Figure 1. Discordance and concordance between QRS complex and ST T segment. The transition from ST segment to T wave should be smooth. The…

Ventricular rhythm and accelerated ventricular rhythm (idioventricular rhythm)

…Hence, all beats and rhythms arising in the ventricles will display discordant ST T segments, meaning that the QRS complex and the ST T segment…

ApoB and Non-HDL Cholesterol in Cardiovascular Risk Assessment

…As a result, apoB and cholesterol measures may be discordant. A patient may have: Relatively high apoB despite normal or low LDL C or non…

Fractional Flow Reserve and Non-Hyperaemic Pressure Ratios

…resting flow and microvascular vasodilator capacity. The two measures may therefore be discordant. A reduced FFR with preserved CFR suggests a predominantly focal epicardial lesion…

Left Bundle Branch Block: ECG criteria and clinical implications

…Table 12.7 [3] ST T Wave Characteristics In most instances, the ST segment and T wave are discordant with the QRS complex [7]. Specifically…

ECG in left ventricular hypertrophy (LVH): criteria and implications

…or R V6 ≥30 mm 3 Discordant ST T change in a patient not on digoxin treatment 3 Discordant ST T change in a patient…

Interpretation of Pacemaker ECG

…will also be abnormal, resulting in discordant ST T segments (i.e the QRS complex and T wave display opposite directions). Below follows ECG tracings…

Premature ventricular contractions (premature ventricular complex, premature ventricular beats)

…Thus, the ST T segment is directed oppositely to the QRS (this is called discordant ST T segment ). Ventricular premature contractions and the complete compensatory…

Right bundle branch block (RBBB): ECG, criteria, definitions, causes & treatment

…leading to secondary ST T changes, which appear on the ECG as discordant ST T segments. These ST T segments are directed opposite to the…

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