To evaluate possible autonomic nervous system (ANS) dysfunction in patients with chronic
obstructive pulmonary disease (COPD) in the absence of any hypoxic neuronal damage, we …

OBJECTIVE: Hypoxemia is known to be associated with abnormal heart rate variability
(HRV) that can reflect the severity of the illness and may have prognostic value in patients …

Background: In chronic obstructive pulmonary disease (COPD) patients, functional and
structural changes of the respiratory system greatly influence cardiovascular autonomic …

The literature indicates that chronic obstructive pulmonary disease (COPD) affects cardiac
autonomic control. In this study, we conducted a literature review in order to investigate the …

BACKGROUND A synchronism exists between the respiratory and cardiac cycles. However,
the influence of the inspiratory muscle weakness in chronic obstructive pulmonary disease …

Heart rate variability (HRV) is reduced in patients with chronic obstructive pulmonary
disease (COPD). However, the relationships among HRV and characteristics of COPD are …

Study objectives: To evaluate cardiac autonomic modulation in patients with COPD during
peak exercise. Methods: Fifty-three patients with COPD (mean FEV 1, 35% predicted [SD …

OBJECTIVES: Autonomic modulation is adversely impacted in patients with chronic
obstructive pulmonary disease (COPD). The purpose of the present investigation is to …

Neurohumoral activation has been shown to be present in hypoxic patients with chronic
obstructive pulmonary disease (COPD). The aims of the present study were to investigate …

Obstructive sleep apnea (OSA) and chronic obstructive pulmonary disease (COPD) coexist
in 0.5–1% of the general population. Both OSA and COPD are associated with increased …