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WellStar Kennestone Regional Medical Center. Wellstar Kennestone Regional Medical Center (formerly WellStar Kennestone Hospital) is a major tertiary-care hospital located in Marietta, Georgia, serving most of northern and central Cobb County, Georgia, as well as adjacent counties. Kennestone Hospital opened in June 1950 as a 105-bed-facility.
Wellstar Health System (formerly WellStar) is a non-profit system founded in 1993 providing comprehensive care in Metro Atlanta, Georgia, United States. It includes: It includes: Augusta University Medical Center [1]
The Pan–Tompkins algorithm [1] is commonly used to detect QRS complexes in electrocardiographic signals ( ECG ). The QRS complex represents the ventricular depolarization and the main spike visible in an ECG signal (see figure). This feature makes it particularly suitable for measuring heart rate, the first way to assess the heart health state.
QRS complex. Schematic representation of a normal sinus rhythm ECG wave. Diagram showing how the polarity of the QRS complex in leads I, II, and III can be used to estimate the heart's electrical axis in the frontal plane. The QRS complex is the combination of three of the graphical deflections seen on a typical electrocardiogram (ECG or EKG).
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Left axis deviation. The hexaxial reference system is a diagram that is used to determine the heart's electrical axis in the frontal plane. In electrocardiography, left axis deviation (LAD) is a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between −30° and −90°.
Electrical alternans is an electrocardiographic phenomenon of alternation of QRS complex amplitude or axis between beats and a possible wandering base-line. It is seen in cardiac tamponade and severe pericardial effusion and is thought to be related to changes in the ventricular electrical axis due to fluid in the pericardium, as the heart essentially wobbles in the fluid filled pericardial sac.
Ashman phenomenon, also known as Ashman beats, describes a particular type of wide QRS complex, often seen isolated that is typically seen in atrial fibrillation. It is a type of cardiac aberrancy and it is more often misinterpreted as a premature ventricular complex . It is named for Richard Ashman (of New Orleans) (1890 –1969), [1] after ...