…For obvious reasons, more complex defects are typically diagnosed earlier. Defects resulting in reduced oxygen saturation are generally detected with neonatal pulse oximetry (POX) screening…

…been updated for decades. As I got more involved with cardiovascular research and dug deeper into electrocardiology and ECG interpretation, I realized that this book…

…the puncture, and antibiotics and a corticosteroid are then given immediately after blood cultures. For questions other than acute meningitis — an insidious onset, known malignancy…

…However, when side lobes encounter strong reflectors (calcifications, pericardium, mechanical heart valves, wires, etc ), they may generate significant reflections which are detected by the transducer…

…Systematic screening of the general population for cardiovascular risk factors has not been shown to improve cardiovascular outcomes, although opportunistic assessment during clinical encounters improves…

…atrial enlargement is often referred to as P pulmonale . The reasons for this are explained below. The normal P wave contour on ECG The normal…

…and cumulative exposure. Previous quit attempts and their duration. Triggers for smoking and anticipated barriers to cessation. Exposure to second hand smoke. Use of cannabis…

…as it encounters excitable tissue. As it circulates within the node, it emits impulses both upwards to the atria and downwards (via His bundle) to…

…to re entry This section introduces the most common arrhythmias encountered in clinical practice, beginning with a discussion of the underlying mechanisms of cardiac arrhythmias…

…resistance encountered in the systemic circulation. Therefore, alterations in heart rate, stroke volume, or vascular tone can significantly impact MAP, reflecting the dynamic interplay between…

…often corrected for heart rate, resulting in the corrected QT (QTc) interval. Several formulas exist to calculate QTc, each with its own characteristics. Bazett’s…

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

…tracings continuously to cloud based platforms, which enables the clinician to examine intracardiac ECGs at any time. However, most clinicians who encounter patients with pacemakers…

…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…

…beat reaches the His Purkinje system early, while some fibers are still refractory. In this case ( Figure 1 ) it encounters a refractory right bundle branch…

…If the left atrium encounters increased resistance (e.g due to mitral valve stenosis) it becomes enlarged (hypertrophy) which amplifies its contribution to the P…