| RVEDV | right ventricular end-diastolic volume |
|---|---|
| RVEDVI | right ventricular end-diastolic volume index |
| RVEF | right ventricular ejection fraction; right ventricular end-flow |
| SEER | Surveillance Epidemiology and End Results [Program] |
| sPEEP | spontaneous peak end-expiratory pressure |