Central Haemodynamics Are Associated With Pulmonary Function in Postmenopausal Women

Area of Science:

• Cardiovascular Physiology
• Respiratory Medicine
• Gerontology

Background:

• Arterial stiffness is a predictor of cardiovascular disease.
• Cardiovascular disease is associated with impaired pulmonary function and can worsen chronic obstructive pulmonary disease.
• The relationship between arterial function and pulmonary function in postmenopausal women requires further investigation.

Purpose of the Study:

• To examine the association between arterial function and pulmonary function in postmenopausal women.
• To determine if specific measures of arterial stiffness correlate with pulmonary function parameters.

Main Methods:

• The study included 41 postmenopausal women aged 59-85 years.
• Arterial function was assessed using measures including central systolic blood pressure, central pulse pressure, and augmentation index adjusted for heart rate (AIx@75).
• Pulmonary function was evaluated by forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), and the FEV1/FVC ratio.

Main Results:

• Univariate analysis showed correlations between arterial pressure measures (cPP, bDBP, bPP) and pulmonary function (FVC, FEV1).
• The augmentation index at 75 bpm (AIx@75) was significantly correlated with FVC, FEV1, and the FEV1/FVC ratio.
• Multivariate analysis confirmed that brachial diastolic blood pressure (bDBP) was independently associated with FVC, and AIx@75 was independently associated with FVC, FEV1, and FEV1/FVC ratio, with lower pulmonary function observed in participants with high AIx.

Conclusions:

• Increased arterial stiffness, indicated by higher AIx, is associated with reduced pulmonary function in postmenopausal women.
• These findings suggest a link between vascular aging and respiratory health in this population.
• Further research may explore interventions targeting arterial stiffness to improve pulmonary function.