Reliability and Physiological Interpretation of Pulmonary Gas Exchange by “Circulatory Equivalents” in Chronic Heart Failure

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Closing capacity and gas exchange in chronic heart failure.

BACKGROUND Although it is commonly assumed that pulmonary congestion and edema in patients with chronic heart failure (CHF) promotes peripheral airway closure, closing capacity (CC) has not been measured in CHF patients. PURPOSES To measure CC and the presence or absence of airway closure and expiratory flow limitation (FL) during resting breathing in CHF patients. METHODS In 20 CHF patient...

متن کامل

Gas exchange efficiency in congestive heart failure.

The lungs and heart are irrevocably linked in their oxygen and CO2 transport functions. Functional impairment of the lungs often affects heart function, and functional impairment of the heart often affects lung function. In patients with chronic congestive heart failure (CHF), exertional dyspnea is a common symptom, and ventilatory effort is increased at a given exercise workload despite normal...

متن کامل

The physiological basis of pulmonary gas exchange: implications for clinical interpretation of arterial blood gases.

The field of pulmonary gas exchange is mature, with the basic principles developed more than 60 years ago. Arterial blood gas measurements (tensions and concentrations of O₂ and CO₂) constitute a mainstay of clinical care to assess the degree of pulmonary gas exchange abnormality. However, the factors that dictate arterial blood gas values are often multifactorial and complex, with six differen...

متن کامل

Effect of physical training on exercise capacity and gas exchange in patients with chronic heart failure.

Decreased exercise capacity is the main factor restricting the daily life of patients with chronic congestive heart failure (CHF). We performed a controlled, randomized study to evaluate the effect of dynamic exercise training of moderate intensity on exercise capacity and gas exchange in patients with CHF. Twenty-seven patients with stable CHF, New York Heart Association (NYHA) functional clas...

متن کامل

Use of Noninvasive Gas Exchange to Track Pulmonary Vascular Responses to Exercise in Heart Failure

We determined whether a non-invasive gas exchange based estimate of pulmonary vascular (PV) capacitance [PVCAP = stroke volume (SV) × pulmonary arterial pressure (Ppa)] (GXCAP) tracked the PV response to exercise in heart-failure (HF) patients. Pulmonary wedge pressure (Ppw), Ppa, PV resistance (PVR), and gas exchange were measured simultaneously during cycle exercise in 42 HF patients undergoi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of the American Heart Association

سال: 2018

ISSN: 2047-9980,2047-9980

DOI: 10.1161/jaha.117.008072