Table 3

Mean ambulatory pulmonary artery pressure (PAP) measured with the micromanometer tipped pulmonary artery catheter and heart rate averaged over 24 hours and during 10 minutes in each posture (lying asleep, lying awake, sitting and standing) and during exercise

Patient no.	24 hour average	Lying asleep	Lying awake	Sitting	Standing	Exercise (bicycle)
PAP 1	21	20	26	19	17	28
2	32	29	36	27	28	41
3	49	56	68	59	57	69
4	69	66	75	68	64	76
5	65	64	68	65	67	73
6	55	45	68	48	68	85
Mean (SE)	48.5^3-150 (7.7)	46.7^3-150 (7.7)	56.8 (8.3)	47.7^3-150 (8.3)	50.2^3-150 (9.0)	62.0 (9.1)
Heart rate
Mean (SE)	86 (5.8)	75 (5.8)	92 (3.7)	88 (2.9)	100 (9.0)	115^3-160 (3.4)

The exercise values were obtained at the beginning of the fourth minute of a steady state exercise test at 30% measured Vo ₂max.
↵3-150 PAP significantly different from lying awake (p<0.05, ANOVA).
↵3-160 Heart rate significantly different from lying awake (p<0.05, ANOVA).