Prognostic value of cardiovascular magnetic resonance derived right ventricular function in patients with interstitial lung disease

Table 2 Echocardiographic parameters and right heart catheterization

*Echocardiography*	*ILD without RVSD* n = 58	*ILD with RVSD* n = 18	* P - *value*
TAPSE, mm	20.4 ± 3.5	19.7 ± 2.9	0.64
RVSP, mmHg	31.9 (18.9-44.9)	31.9 (24.4-39.4)	0.64
RVFAC, %	39.4 ± 9.1	37.7 ± 10.4	0.49
LVEF, %	63.6 ± 8.4	65.6 ± 5.8	0.54
LVDd, mm	41.6 (38.6-44.6)	42.5 (38.5-46.5)	0.086
*Right heart catheterization*	*ILD without RVSD n* = 16	*ILD with RVSD n* = 39	P - value*
RAP, mmHg	4.5 ± 3.4	6.2 ± 4.1	0.94
mPAP, mmHg	19.0 (15.5-22.5)	21.5 (17.0-26.0)	0.005
PCWP, mmHg	8.2 ± 3.7	8.5 ± 3.8	0.21
SVR, dyne·sec·cm^-5	324 (210-438)	315 (223-407)	0.41
PVR, dyne·sec·cm^-5	152 (85-219)	147 (36-258)	0.060
Cardiac Index, L/min/m²	2.8 (2.3-3.3)	2.8 (2.3-3.3)	0.95

Values are presented as mean ± standard deviation (SD) or median (1^st quartile and 3^rd quartile).
RV dysfunction was defined as RVEF ≤45% evaluated by cine CMR.
*P value represents significance of difference between ILD patient with RVSD and those without.
ILD: interstitial lung disease; LVDd: left ventricular dimension at end of diastole; LVEF: left ventricular ejection fraction; mPAP: mean pulmonary arterial pressure; PCWP: pulmonary capillary wedge pressure; PVR: pulmonary vascular resistance; RAP: right atrial pressure; RVFAC: right ventricular fractional area change; RVSD: right ventricular systolic dysfunction; RVSP: right ventricular systolic pressure; SVR: systemic vascular resistance; TAPSE: tricuspid annular plane systolic excursion.

ISSN: 1532-429X