The electrocardiogram (ECG or EKG) is one of the most fundamental diagnostic tools in modern cardiology, offering a visual representation of the heart's electrical activity. By analyzing the distinct waveforms and intervals of a normal sinus rhythm, medical professionals can evaluate cardiac health, diagnose arrhythmias, and assess the efficiency of blood flow through the heart chambers. This article breaks down the anatomy of a single heartbeat as seen on a tracing, explaining the physiological events behind each peak and valley.
Explore the critical electrocardiogram (ECG) findings associated with acquired Long QT Syndrome, a potentially life-threatening cardiac condition. This article provides a detailed explanation of how a prolonged QT interval can manifest on an ECG, its clinical implications, and the importance of prompt recognition and management.
Learn about Arteriovenous Fistula (AVF), including its causes, hemodynamics, and treatment. This guide covers congenital and dialysis-related fistulas and management.
A detailed medical guide to the five layers of the human epidermis: basale, spinosum, granulosum, lucidum, and corneum. Learn about skin histology and function.
Explore the pathology and clinical management of the carotid body tumor (paraganglioma). This article covers histological Zellballen patterns, Shamblin classification, and genetic links.
Explore the microscopic world of the arterial wall and the development of calcified atherosclerotic plaques. This guide explains the histology and pathology of vascular mineralization.