Table 2.

Echocardiographic Measurement Changes Due to Hyperoxia.

	Day 1		Day 2
	Room Air	Hyperoxia	Room Air	Vitamin C + Hyperoxia
LVEDD (cm)	4.53 ± 0.17	4.53 ± 0.18	4.53 ± 0.17	4.44 ± 0.19
LVESD (cm)	2.89 ± 0.10	2.94 ± 0.12	2.96 ± 0.14	3.04 ± 0.15
LVEDV (ml)	114.50 ± 5.78	113.75 ± 6.79	111.63 ± 7.17	113.13 ± 7.56
LVESV(ml)	45.25 ± 3.32	48.75 ± 3.41	47.38 ± 4.52	48.38 ± 3.51
SV (ml)	71.00 ± 3.87	65.00 ± 4.18	65.00 ± 3.92	65.00 ± 4.89
CO (L)	4.75 ± 0.34	3.77 ± 0.29*	4.20 ± 0.16	4.16 ± 0.24
EF (%)	60.38 ± 1.46	57.13 ± 1.63	58.63 ± 1.84	57.13 ± 1.55

Values are mean ± S.E.M. LVEDD, diameter of left ventricle at the end of diastole; LVESD, diameter of left ventricle at the end of systole; LVEDV, volume of left ventricle at the end of diastole; LVESV, volume of left ventricle at the end of systole; SV, stroke volume; CO, cardiac output; EF, ejection fraction.

^*P < 0.05, versus respective baseline.