…of the T wave, in leads V1 and V2 (Figure 1). Terminal activation duration (TAD) , defined as the interval between the nadir (lowest point) of…

…different position or a different vessel. Choice of site Vessel Advantages Disadvantages : : : Internal jugular vein (right) Best ultrasound conditions, a straight course to the superior…

…ECG tracing lasting ≥30 seconds, characterized by irregularly irregular R R intervals and the absence of distinct P waves [1] [2] . Stroke Risk Scores: CHA2DS2…

…flow across the mitral valve. The duration of diastasis is inversely related to heart rate (diastasis is shorter at higher heart rates and vice versa ).

…reflection of the electrical potentials generated by the left ventricle. QRS duration QRS duration is the time duration from the start to the end of…

…complex is actually a reflection of left ventricular depolarization. QRS duration is the time interval from the onset to the end of the QRS complex…

…PR interval <120 ms with a delta wave and wide QRS is indicative of 'Ventricular pre excitation', and QRS duration ≥140 ms is considered 'Profound…

…reader will notice that most of these drugs are contraindicated in patients with structural heart disease, as well as patients with reduced left ventricular function…

…left bundle branch block). 2. P wave and PR interval Check The P wave is always positive in II, III and aVF. P wave duration…

…complex in V1–V2 resembles a left bundle branch block (i.e negative QRS) V1 : The initial portion of the QRS complex is smooth in…