Suzuki T; Department of Cardiology, Yokohama City University Graduate School of Medicine.
Iwahashi N; Abe T; Komura N; Abe M; Konishi M; Otsuka F; SuganoT; Ishigami T; Hibi K

Circulation Journal. 90(2):228-231, 2026 Jan 23.
VI 1

BACKGROUND: Passive leg lifting (PLL) may serve as a simple alternative to
simulate exercise stress.

METHODS AND RESULTS: We evaluated 33 patients with PH who underwent
PLL-RHC and exercise right heart catheterization (RHC); 25 patients were
classified as having PLL-induced PH (LIPH), demonstrating significant
increases in mean pulmonary arterial pressure (mPAP) and mPAP-cardiac
output slopes. Strong correlations were observed between PLL-RHC and
exercise RHC measurements.

CONCLUSIONS: PLL-RHC may represent a simple method for detecting EIPH.