After the VT was recognized, compressions were started. As you can see on the arterial line, compressions generated (as registered on the graph) pressures of about 80-100.
Earlier study mentioned pressured of 60-80 during compression. They used pneumatic compression device at a compression rate of 60/min (study done in 1989).
This strip captured and emphasized high quality compression. The patient in this case was converted back to SR and got adequate pressures.
Paradis N. et al. 1989. Simultaneous aortic, jugular bulb, and right atrial pressures during cardiopulmonary resuscitation in humans. Insights into mechanisms. Circulation. 1989;80:361-368