Glad you found the V pacing/AV dissociation. It’s a fun one as you can see cannon a-waves come and go, in addition to the SPV. I recently saw that during a difficult epicardial pacer placement in the OR to dx faulty sensing of the a-lead (despite the numbers on the interrogation suggesting it was working!–a great example of the importance of knowing how to interpret a cvp waveform!).

For the respiratory variation, you should be able to see mitral flow variability. Make sure you select mechanical ventilation. We haven’t modeled airflow dynamics, but you can change lung compliance to SEVERE (and increase TV to 1000) to maximize the intrathororacic pressure changes. Let me know if you have any trouble with that–should work.