…following aspects: Physiology (particularly cardiac electrophysiology) Pathophysiology (causes and mechanisms underlying various conditions diagnosed using ECG) Epidemiology Clinical aspects ECG criteria/characteristics Electrophysiological explanations for…

…For questions other than acute meningitis — an insidious onset, known malignancy, immunosuppression, papilloedema or new focal neurological signs — CT is performed first. Preparation and equipment…

…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…

…attempts and their duration. Triggers for smoking and anticipated barriers to cessation. Exposure to second hand smoke. Use of cannabis, electronic cigarettes or other inhaled…

…impulse reaches the atrioventricular node when there are two pathways, one being refractory and the other capable of conducting the impulse, re entry may arise…

…activity. This is partly due to the rise of cardiac imaging and invasive electrophysiological methods which allow for detailed in vivo studies of arrhythmias. However…

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

…the most severe malformations have become routine practice. The treatment repertoire includes surgery, catheter interventions, and medical therapies. Adults with congenital heart disease are mostly…

…a specific stenosis. Clinical Role and Indications CAC scoring is principally a risk stratification tool for individuals without known clinical coronary artery disease, especially when…

…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…

…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…

…Evaluation and Physical Examination Patients with suspected ACS should undergo expedited emergency department assessment. The initial evaluation includes: Targeted medical history Physical examination Vital sign…

…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…

…If the sound waves encounter a new medium, some sound waves will be reflected while others will transfer the mechanical (pressure) energy to the new…

…refractory. In this case ( Figure 1 ) it encounters a refractory right bundle branch and therefore the impulse is conducted with right bundle branch block morphology…

…is angled alongside the P wave vector, and the exploring electrode is located in front of the P wave vector ( Figure 2, right hand side)…