to appreciate this distinction without viewing the actual ECG.

Monomorphic or polymorphic

Monomorphic refers to all QRS waves in a single lead being similar in shape. Polymorphic means that the QRS change from complex to complex. These terms are used in the description of ventricular tachycardia.

Algorithms

A common algorithm used for QRS complex detection is the Pan-Tompkins algorithm (or method); another is based on the

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