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The book was written by Dale Dubin, M.D., a plastic surgeon and convicted felon, [3] who has written several books on cardiology including Ion Adventure in the Heartland: Exploring the Heart's Ionic-Molecular Microcosm [4] and Understanding Cardio-pulmonary Resuscitation. [5]
Dale Dubin (born 1940), is a former American plastic surgeon and author of several cardiology textbooks, though never practicing or being trained as a cardiologist. Dubin practiced medicine in Tampa, Florida , [ 1 ] and gained fame within the medical community with the 1972 publication of Rapid Interpretation of EKG's , a best-selling textbook ...
An electrocardiogram, or ECG, is used to differentiate between the different types of AV block. In AV block, there is a disruption between the signal traveling from the atria to the ventricles. This results in abnormalities in the PR interval, as well as the relationship between P waves and QRS complexes on the ECG tracing.
The manufacturing industries of ECG machines is now entirely digital, and many models incorporate embedded software for analysis and interpretation of ECG recordings with 3 or more leads. Consumer products, such as home ECG recorders for simple, 1-channel heart arrhythmia detection, also use basic ECG analysis, essentially to detect abnormalities.
Long QT syndrome (LQTS) is a condition affecting repolarization (relaxing) of the heart after a heartbeat, giving rise to an abnormally lengthy QT interval. [7] It results in an increased risk of an irregular heartbeat which can result in fainting, drowning, seizures, or sudden death. [1]
Willem Einthoven was born in Semarang on Java in the Dutch East Indies (now Indonesia), the son of Louise Marie Mathilde Caroline de Vogel and Jacob Einthoven. [3] His father, a doctor, died when Willem was a child.
The right leg electrode acts to reduce interference, and can be placed anywhere without an effect on the ECG results. [6] Each lead measures the electric field created by the heart during the depolarization and repolarization of myocytes. The electric field can be represented as a vector that changes continuously and can be measured by ...
Research in the late 2000s has linked this finding to ventricular fibrillation, particularly in those who have fainted or have a family history of sudden cardiac death. [5] [6] [7] Although there is a significant relationship between ventricular fibrillation and some early repolarization's patterns, the overall lifetime occurrence of idiopathic ventricular fibrillation is exceptionally rare. [8]