Increased intrathoracic pressure--not direct heart compression--causes the rise in intrathoracic vascular pressures during CPR in dogs and pigs.
D000818:Animals; D001794:Blood Pressure; D004285:Dogs; D011312:Pressure; D012039:Regional Blood Flow; D012151:Resuscitation; D013552:Swine; D013909:Thorax / Q000098:blood supply*; D014693:Ventricular Fibrillation / Q000628:therapy