Characteristics of Arterial Line Waveforms

Characteristics of a Good Arterial Line Waveform

A good arterial waveform has a rapid, steep systolic upstroke representing left ventricular ejection, with the first shoulder occurring at peak blood flow velocity, according to the American Heart Association 1
Visible dicrotic notch representing aortic valve closure is a characteristic of a good arterial waveform, as stated by the American College of Cardiology 3
Two visible demarcations on the central aortic pressure wave - the first (early) shoulder generated by LV ejection and the second shoulder representing the reflected wave - are present in a good arterial waveform, as recommended by the American Heart Association 1
The second shoulder (mid-to-late systolic) represents the reflected pressure wave with proper timing and amplitude in a good arterial waveform, according to the American College of Cardiology 1, 3
Minimal beat-to-beat variability in the absence of arrhythmias is a characteristic of a good arterial waveform, as stated by the American Heart Association 4

Increased wave reflection amplitude predicts all-cause 15-year mortality, making accurate waveform assessment critical, as stated by the American Heart Association 1, 5
Wave reflection patterns affect left ventricular loading and can cause myocardial hypertrophy, fibrosis, and dysfunction, according to the American College of Cardiology 1, 6
Increased wave reflections strongly predict future heart failure risk, as recommended by the American Heart Association 1

Examining for appropriate waveform characteristics including sharp upstroke, clear dicrotic notch, and appropriate amplitude is essential for assessing arterial line waveform quality, as stated by the American College of Cardiology 1, 3