Timing
Physiological Effect
Waveform Features
Waveform
Late Inflation 1
- Inflation of the IAB markedly after closure of the aortic valve
- Reduction in duration of diastolic augmentation Suboptimal coronary artery perfusion
- Balloon inflates after the dicrotic notch
- Absence of sharp ‘V’ in the trace with reduced height of the diastolic augmentation peak