Table 1 Mean arterial pressure (MAP) and heart rate (HR) expressed as mean ± SD obtained before air embolism (Before AE), at the peak response following AE, and 2 minutes later. Values are also reported immediately before the left pulmonary artery occlusion (LPAO), at the peak response after LPAO, and 2 minutes after release of the left pulmonary artery. *: p < 0.001 vs. BL, #: p < 0.001 vs. AE, $: p = 0.013 vs. AE