…refer to Introduction to AV Blocks). The term block is somewhat imprecise in the context of first degree AV block, as it does not represent…

…which means that resistance in the pulmonary artery is high), whereas resistance in the systemic circulation (and thus the aorta) is relatively low. Figure 2…

…which means that resistance in the pulmonary artery is high), whereas resistance in the systemic circulation (and thus the aorta) is relatively low. Figure 2…

…dysfunction in the conduction system. The J point and the ST segment The ST segment corresponds to the plateau phase (phase 2) of the action

…is often ambiguous. Since the risk of attempting CPR is extremely low and the potentially catastrophic consequences of wrongfully withholding an attempt, CPR is often…

…ACC) discourage the use of exercise stress testing for the evaluation of coronary artery disease, which is due to the low sensitivity of the method …

ECG Introduction to ECG interpretation QT duration and corrected QT (QTc) duration ECG interpretation always includes an assessment of the QT interval (QT duration). The…

…calcium (Ca 2+ ) channels open so that calcium flows into the cell and causes depolarization. Subsequently, outward directed potassium (K + ) channels open which results in…

…90% of prevalent hypertension. Hypertension has a major population attributable contribution to chronic coronary disease, cerebrovascular disease, and peripheral arterial disease. More than 70% of…

…procedural complexity, and the relative merits of PCI and coronary artery bypass grafting (CABG). Definition and Pathophysiology From balloon angioplasty to coronary stents Balloon angioplasty…