…is not mandatory for HFmrEF when the diagnosis of heart failure is clinically secure and the LVEF measurement is reliable. Nevertheless, these findings increase diagnostic…

…the sinoatrial node) is a common finding in athletes and during sleep; in these scenarios, it should not be considered abnormal. On the other hand…

…this chapter, you will learn the physiological basis of all ECG waves and how to determine whether the ECG is normal or abnormal. Although heart…

…wave not clearly visible: look for retrograde (inverted) P waves, which can be located anywhere between the J point and the terminal part of the…

…complementary domains: Indicators of acute PE severity , including clinical findings, RV dysfunction on imaging, and myocardial injury shown by laboratory testing. Comorbidity and aggravating conditions …

…facilitates precise reporting and ensures consistent communication of findings across clinicians. Perfusion defects are categorized by their size, encompassing: Small defects : <10% of the left…

…left ventricle will not be depolarized via the Purkinje network, but rather via spread of the depolarization from the right ventricle. The abnormal ventricular depolarization…

…changes. This is due to the fact that pre excitation leads to abnormal depolarization of the ventricles and this leads to abnormal repolarization as well…

…1 ). If the T wave and the QRS complex head in opposite directions, the T wave is said to be discordant which is abnormal. Because…

…effect on impulse conduction because digoxin slows impulse conduction. It is important to note that the association between ECG changes and the risk of arrhythmia…