The linear relationship between systolic pulmonary artery pressure and mean pulmonary artery pressure is maintained regardless of autonomic or rhythm disturbances

Table 1 Baseline group classified according to pathology

Group		Number of patients		MPAP	SD	Systolic Regression	R²	Diastolic Regression	R²
Normal		83		19	3.6	0.50 SPAP + 3.36	0.777	1.11DPAP + 4.00	0.976
Group 1		135		50	12,8	0.58 SPAP + 3.52	0.995	1.16DPAP + 9.68	0.995
	IPAH		68	51	11,2	0.60 SPAP + 2.35	0.838	1.10DPAP + 11.6	0.878
	Medication induced PAH		10	51	13,9	0.61 SPAP + 0.02	0.991	1.44DPAP+ 0.43	0.989
	Cirrhosis		15	52	12,5	0.60 SPAP −0.06	0.990	1.45DPAP + 1.07	0.986
	Congenital		13	57	16,8	0.61 SPAP −1.03	0.986	1.44DPAP + 1.50	0.976
	Systemic sclerosis		22	44	12,5	0.61 SPAP + 1.65	0.966	1.10DPAP + 4.07	0.939
	HIV		2	62	^a
	Hereditary		1	49	^a
	schistosomiasis		1	50	^a
	veno-occlusive disease		3	47	^a
Group 2		109		38	10,8	0.59 SPAP + 3.57	0.877	1.25 DPAP + 3.25	0.867
Group 3		26		39	9,4	0.54 SPAP+ 5.62	0.908	1.31 DPAP + 1.75	0.877
Group 4		63		44	10.4	0.53 SPAP + 3.93	0.789	1.12 DPAP + 11.50	0.987
Group 5		12		44	11,04	0.53 SPAP + 6.38	0.976	1.45 DPAP-0.20	0.856
Unclassifed		1		43	^a	^a	^a	^a	^a

IPAH idiopathic pulmonary arterial hypertension, MPAP mean pulmonary arterial pressure, SPAP systolic pulmonary arterial pressure, DPAP diastolic pulmonary arterial pressure, SD standart deviation
MPAP is expressed in mmHg
^awhere calculations are not applicable

ISSN: 1465-993X