…presence or haemodynamic significance of a specific stenosis. Clinical Role and Indications CAC scoring is principally a risk stratification tool for individuals without known clinical…

…with NSTE ACS should be admitted for management of acute ischaemia. Those with possible ACS, a non diagnostic ECG, and normal initial troponin may be…

…for every 10,000 apparently healthy newborn infants, around six will have critical CHD, and the pulse oximetry test will correctly identify five of these…

…the trap of oversimplification. Physicians, nurses, paramedics and physician assistants who rely on such books will realize their shortcomings at their first encounter with an…

…Only clinical signs of herniation halt the puncture, and antibiotics and a corticosteroid are then given immediately after blood cultures. For questions other than acute…

…echogenicity). For each reflection, a portion of the sound waves return to the transducer and produce a copy of the reflector on the image. Hence…

…for this are explained below. The normal P wave contour on ECG The normal P wave (Figure 1, upper panel) is typically smooth, symmetric and…

…improves vascular health and may reduce cardiovascular risk within several years, although risk may remain higher than that of never smokers for a prolonged period…

…have any clinical relevance and it may lead to misunderstanding. Use of the term PSVT is therefore not recommended. Synonyms for AVNRT Atrioventricular nodal reentrant…

Arrhythmias and arrhythmology ECG Mechanisms of cardiac arrhythmias: from automaticity to re entry This section introduces the most common arrhythmias encountered in clinical practice, beginning…

…pressure and is a better indicator of organ perfusion. In clinical settings, MAP is often preferred over SBP for the following reasons: Indicator of Organ…

…For patients with bundle branch blocks, the corresponding figure is 500 ms. The QT interval represents the time between the onset of ventricular depolarization and…

…most clinicians who encounter patients with pacemakers only have access to conventional surface ECGs. Being able to assess pacemaker function and perform troubleshooting should be…

…generate vibrations in the surrounding air and these vibrations propagate in the form of a sound wave. If the sound waves encounter a new medium…

…it encounters a refractory right bundle branch and therefore the impulse is conducted with right bundle branch block morphology. This is an example of how…

…wave changes in lead II and lead V1 ( Figure 3 ). Enlargement of the right atrium is commonly a consequence of increased resistance to empty blood…