Abstract
Pulmonary artery systolic pressure (PASP) was examined in relationship to age, body mass index (BMI), the effects of comorbid disease, and standard echocardiographic measurements of cardiac chamber size, left ventricular filling patterns, and left ventricular systolic function in 5 large cohorts presenting with a primary problem of obesity. For subjects with a measurable PASP, means (± SD) across cohorts for age ranged from 46.0 ± 11.2 to 54.1 ± 12.8 years, for BMI from 26.0 ± 4.4 to 37.2 ± 6.1 kg/m2, and PASP (n = 1515) from 29.9 ± 7.7 to 33.8 ± 7.8 mm Hg. PASP 30 mm Hg or greater occurred in 46% to 66% of subjects and 35 mm Hg or greater in 16% to 36%. Age and BMI were the most significant correlates of PASP. Increased PASP was also significantly associated with systemic hypertension and a history of cardiovascular disease. The mean PASP in obese individuals is higher than previously reported with nearly one third having a PASP of 35 mm Hg or greater. Clinical interpretation of PASP should include BMI, age, blood pressure, and presence of cardiovascular disease. (J Am Soc Echocardiogr 2002;15:454-62.)
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