The Role of Conjunctival Microvasculation Combined with Echocardiography in Evaluating Pulmonary Arterial Hypertension in Systemic Lupus Erythematosus

Table 3

Comparison of the parameters between different risk groups.

Parameters	Low risk ()	Intermediate risk ()	High risk ()	value^△
sPAP (mmHg)				0.23
TAPSE (cm)				0.012
RAP (mmHg)				0.147
NT-proBNP (pg/mL)				0.003
SUA (ummol/L)				0.67
RDW (%)				0.315
VD (n/mm^2)				0.006
MFI				0.019
Conjunctival microvascular changes

sPAP: systolic pulmonary artery pressure; TAPSE: tricuspid annular plane systolic excursion; RAP: right atrial pressure; NT-proBNP: N-terminal prohormone of brain natriuretic peptide; SUA: serum uric acid; RDW: red blood cell volume distribution width; VD: vessel density; MFI: microvascular flow index. . △ Kruscal-Wallis test; # ischemic areas; ⟶ microangioma.