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Heart Failure With Mildly Reduced Ejection Fraction

…nature makes prior imaging particularly important when interpreting a current LVEF of 41–49%. Diagnostic phenotype Criterion HFmrEF Symptoms and/or signs of heart failure…

Mechanisms of cardiac arrhythmias: from automaticity to re-entry (reentry)

…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…

ECG interpretation: Characteristics of the normal ECG (P-wave, QRS complex, ST segment, T-wave)

…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…

🟠 Reference values for adult ECG

…retrograde (inverted) P waves, which can be located anywhere between the J point and the terminal part of the T wave. PR interval 0,22…

Acute Pulmonary Embolism: Risk Stratification and Reperfusion

…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 …

Interpretation of myocardial perfusion images (Myocardial SPECT / PET)

…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…

ST segment depression in myocardial ischemia and differential diagnoses

…ECG finding is the ST segment depressions. In STE ACS, on the other hand, the ST segment depressions are secondary findings and the primary findings…

Pre-excitation, Atrioventricular Reentrant (Reentry) Tachycardia (AVRT), Wolff-Parkinson-White (WPW) syndrome

…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…

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

…wave amplitude is on average 3 mm in V2–V3 in females and it rarely exceeds 8 mm. Note that the amplitude of the T…

Digoxin - ECG changes, arrhythmias, conduction defects & treatment

…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…

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