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Left atrial enlargement (P mitrale) & right atrial enlargement (P pulmonale) on ECG

…a reflection of right atrial activation and the second half is a reflection of left atrial activation. This is shown in Figure 1 (upper panel…

P-wave, PR interval, PR segment: physiology, criteria & ECG findings

…a reflection of right atrial depolarization and the second half is a reflection of left atrial depolarization. This is shown in Figure 3 (upper panel…

Blood transfusion and massive haemorrhage

…haemorrhage control) planned in advance. A history of a severe transfusion reaction: contact transfusion medicine before transfusing again. Preparation and equipment Compatibility testing Test What…

Overview of the ECG Waves, Deflections, Intervals, Durations

…left ventricle is usually considerably larger than the right ventricle, the QRS complex is actually a reflection of the electrical potentials generated by the left…

Technical aspects of the ultrasound image

Echocardiography Generating the ultrasound image The ultrasound transducer generates short bursts (pulses) of ultrasound waves. Reflected ultrasound waves are analyzed by the machine during the…

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

…left ventricle is many times larger than the vector generated by the right ventricle, the QRS complex is actually a reflection of left ventricular depolarization…

Brugada Syndrome: Diagnosis & SCD Prevention

Cardiology Introduction Since its initial description in 1992 as a syndrome of right bundle branch block, ST segment elevation, and sudden cardiac death (SCD), Brugada…

Diuretic Strategy and Decongestion in Heart Failure

…impaired renal venous outflow and persistent right sided congestion may be important mechanisms. Diuretics relieve the hemodynamic consequences of congestion by producing a negative sodium…

Coronary Anatomy and Segmental Classification for the Clinician

…visual diameter reduction. Relevant determinants include: Lesion eccentricity Vessel tortuosity Calcification Plaque rupture or asymmetric filling defects Serial lesions Vessel size The relationship of the…

ST-Elevation Myocardial Infarction Complicated by Cardiogenic Shock

…blocker exposure. The incidence of cardiogenic shock complicating STEMI has fallen with prompt reperfusion and reduction of infarct size. Earlier estimates approached 20%, whereas contemporary…

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