Importance of abnormal lung perfusion in excessive exercise ventilation in chronic heart failure
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Ventilatory efficiency during ramp exercise in relation to age and sex in a healthy Japanese population
2021, Journal of CardiologyCitation Excerpt :In addition, the minimum V̇E/V̇CO2 (min V̇E/V̇CO2) is a valuable prognostic factor in patients with heart failure [9]. The V̇E vs. V̇CO2 slope, OUES, and min V̇E/V̇CO2 are known to be affected by age and sex; however, there are few reports on the average value of healthy oriental individuals, including the Japanese [10]. Moreover, there is no information on tidal volume (VT) and V̇E responses to the exercise with ramp protocols that are commonly used in CPX.
Acute Decompensated Heart Failure in Patients with Heart Failure with Preserved Ejection Fraction
2020, Heart Failure ClinicsPathophysiology and clinical relevance of pulmonary remodelling in pulmonary hypertension due to left heart diseases
2015, Canadian Journal of CardiologySystolic blood pressure influences the interpretation of cardiopulmonary exercise tests and helps identify a very high-risk cohort of heart failure patients
2014, Journal of Heart and Lung TransplantationCitation Excerpt :Furthermore, the severity of HF may not warrant further action because this cut point is within the realm of a normal response. The Ve/Vco2 slope upper limit of normal has long been reported to be 33 to 34, based on being 2 standard deviations from a normal response.34,35 Ve/Vco2 had the highest hazard ratio in 2 different, recent, CPX-based multivariable risk prediction models10,11 and adds prognostic information to more widely used risk prediction tools, the Seattle Living With Heart Failure Model25 and the Heart Failure Survival Score.36
Adaptive servo-ventilation improves exercise oscillatory ventilation and ventilatory inefficiency in patients with heart failure and central sleep apnea
2013, IJC Metabolic and EndocrineCitation Excerpt :First, long-term hemodynamic effects of ASV would lead to improvement in cardiac function and exercise-associated hemodynamic responses. Improvement of hemodynamics and pulmonary dead space might be related to improvement of ventilatory efficiency [25,26]. In fact, LVEF and BNP level improved significantly after the use of ASV in the present study.
Cardiopulmonary exercise testing as a diagnostic tool for the detection of left-sided pulmonary hypertension in heart failure.
2013, Journal of cardiac failure