Arterial compliance in patients with cirrhosis: stroke volume-pulse pressure ratio as simplified index
J H Henriksen1, S Fuglsang, F Bendtsen
1Department of Clinical Physiology, Hvidovre Hospital, University of Copenhagen, DK-2650 Hvidovre, Denmark. jens.h.henriksen@hh.hosp.dk
Insights
Arterial compliance is elevated in patients with cirrhosis. A simplified stroke volume-pulse pressure index (SV/PP) effectively reflects these arterial abnormalities in cirrhotic individuals.
Area of Science:
- Cardiovascular Physiology
- Hepatology
- Vascular Medicine
Background:
- Cirrhosis can significantly impact arterial function.
- Understanding hemodynamic changes is crucial for managing cirrhotic patients.
Purpose of the Study:
- To determine arterial tree compliance (C(1)) in cirrhosis.
- To correlate C(1) with systemic and splanchnic hemodynamics.
- To assess the utility of the stroke volume-pulse pressure index (SV/PP) as a marker.
Main Methods:
- Measured arterial compliance (C(1)) and SV/PP in cirrhotic patients and controls.
- Analyzed relationships between C(1), SV/PP, and clinical/hemodynamic variables.
- Utilized univariate and multiple-regression analyses.
Main Results:
- Arterial compliance (C(1)) and SV/PP were significantly higher in cirrhotic patients.
- Strong correlations were observed between C(1) and SV/PP in both groups.
- Multiple regression identified sex, age, blood pressure, vascular resistance, and biochemical variables as predictors of SV/PP.
Conclusions:
- Arterial compliance is elevated in patients with cirrhosis.
- The SV/PP index serves as a reliable indicator of altered arterial compliance in cirrhosis.
Abstract:
Arterial function may be altered in patients with cirrhosis. We determined compliance of the arterial tree (C(1)) in relation to systemic and splanchnic hemodynamic derangement and clinical variables. C(1) and the stroke volume-pulse pressure index (SV/PP) were significantly higher (+62% and +40%, respectively; P < 0.001) in cirrhotic patients (n = 49) than in control subjects (n = 19), and a close correlation between C(1) and SV/PP was found in both cirrhotic patients (r = 0.86, P < 0.001) and control subjects (r = 0.96, P < 0.001). Univariate analysis showed significant relations between C(1) and SV/PP on one side and age, sex, body weight, portal pressure, systemic hemodynamics, biochemical variables, and severity of disease on the other. In the multiple-regression analysis, sex, age, mean arterial blood pressure, systemic vascular resistance, and biochemical variables were significant independent predictors of SV/PP (P < 0.005-0.00001). In conclusion, arterial compliance is elevated in cirrhosis. A simplified SV/PP index seems to reflect abnormalities in the arterial compliance of these patients.
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