Abstract 14102: Prognostic Impact of Peak Systolic Pulmonary Arterial Pressure in Nonagenarians: An Echocardiographic Study

Abstract

Introduction: Recently, a low threshold of estimated peak systolic pulmonary arterial pressure (eSPAP) of 30 mm Hg was reported to be associated with mortality in the general population. However, less is known about the prognostic impact of eSPAP in nonagenarians. Methods: We retrospectively reviewed 596 patients ≥90 years of age referred for echocardiography with a recorded eSPAP and left ventricular ejection fraction ≥50%. eSPAPs were characterized according to their quartile distribution: first quartile (reference group) (<30 mm Hg), second quartile (30-38 mm Hg), third quartile (39-48 mm Hg), fourth quartile (>49 mm Hg). The associations between quartiles of eSPAP and all-cause mortality were tested in Cox models (adjusting for age, sex, body mass index, hypertension, coronary arterial disease, atrial fibrillation, diabetes mellitus, chronic kidney disease, chronic obstructive pulmonary disease, left-sided valve disease, left atrial area, NYHA class ≥II, left ventricular mass and right ventricular fractional area change). Results: Of the 596 patients, 61% were female, and the median age was 92 years (IQR 91-95). The median eSPAP was 39.0 mm Hg (IQR 30.3-49.0) (Figure). During the median follow-up of 522 days (IQR 59-1337), a total of 268 deaths (45%) occurred. The adjusted risk of mortality in eSPAP 39-48 mm Hg and eSPAP >49 mm Hg were 1.6 and 1.7 times higher than in eSPAP <30 mm Hg, respectively (Table). Conclusions: In conclusion, eSPAP ≥39 mm Hg was independently associated with mortality in nonagenarians. Estimated peak systolic pulmonary arterial pressure could help in prognostic stratification even in oldest-old patients.