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Relationship of Pulmonary Arterial Capacitance and Mortality in Idiopathic Pulmonary Arterial Hypertension

Srijoy Mahapatra, MD^_*, Rick A. Nishimura, MD^_*,_*, Paul Sorajja, MD^_*, Stephen Cha, MS and Michael D. McGoon, MD^_*

^_* Division of Cardiology, Mayo Clinic, Rochester, Minnesota.
Division of Biostatistics, Mayo Clinic, Rochester, Minnesota.

View larger version (35K): [in a new window]   Figure 1 Univariate analysis of potential parameters of all-cause mortality. FEV-1 = 1-s forced expiratory volume; NIH = National Institutes of Health; PA = pulmonary artery; PVR = pulmonary vascular resistance; RA = right atrium; SV/PP = capacitance (stroke volume/pulmonary pulse pressure); WHO = World Health Organization.

View larger version (23K): [in a new window]   Figure 2 Kaplan-Meier survival curves by pulmonary vascular capacitance quartiles.

View larger version (12K): [in a new window]   Figure 3 Mortality for each pulmonary vascular capacitance quartile.

View larger version (20K): [in a new window]   Figure 4 Receiver-operator curves for potential predictors. Abbreviations as in Figure 1.