Dependence of peak oxygen uptake on oxygen transport capacity in chronic heart failure: comparison of graded protocol and fixed protocol

1997 ◽  
Vol 59 (2) ◽  
pp. 149-156 ◽  
Author(s):  
Yoshinori Yasaka ◽  
Hiroshi Yamabe ◽  
Mitsuhiro Yokoyama
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Oxygen Uptake ◽  
Oxygen Transport ◽  
Peak Oxygen Uptake ◽  
Transport Capacity ◽  
Oxygen Transport Capacity

scholarly journals Neurohormonal Determinants of Peak Oxygen Uptake in Patients with Chronic Heart Failure

2003 ◽  
Vol 44 (5) ◽  
pp. 725-734 ◽  
Author(s):  
Toru Kinugawa ◽  
Masahiko Kato ◽  
Kazuhide Ogino ◽  
Osamu Igawa ◽  
Ichiro Hisatome ◽  
...  
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Oxygen Uptake ◽  
Peak Oxygen Uptake

Peak Oxygen Uptake is Limited by Oxygen Transport and not Peripheral Extraction in Congestive Heart Failure Patients

2007 ◽  
Vol 39 (Supplement) ◽  
pp. S33
Author(s):  
Yagesh Bhambhani ◽  
Sandra Mandic ◽  
Wayne Tymchak ◽  
Daniel Kim ◽  
Dylan Taylor ◽  
...  
Keyword(s):  
Heart Failure ◽  
Congestive Heart Failure ◽  
Oxygen Uptake ◽  
Oxygen Transport ◽  
Peak Oxygen Uptake ◽  
Heart Failure Patients

scholarly journals Could peak oxygen uptake be estimated from proposed equations based on the six-minute walk test in chronic heart failure subjects?

2017 ◽  
Vol 21 (2) ◽  
pp. 100-106 ◽  
Author(s):  
Giane A. Ribeiro-Samora ◽  
Dayane Montemezzo ◽  
Danielle A.G. Pereira ◽  
Thaysa L. Tagliaferri ◽  
Otávia A. Vieira ◽  
...  
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Oxygen Uptake ◽  
Peak Oxygen Uptake ◽  
Walk Test ◽  
Six Minute Walk Test ◽  
Minute Walk

scholarly journals Abnormalities of the Ventilatory Equivalent for Carbon Dioxide in Patients with Chronic Heart Failure

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Lee Ingle ◽  
Rebecca Sloan ◽  
Sean Carroll ◽  
Kevin Goode ◽  
John G. Cleland ◽  
...  
Keyword(s):  
Heart Failure ◽  
Carbon Dioxide ◽  
Chronic Heart Failure ◽  
Oxygen Uptake ◽  
Minute Ventilation ◽  
Carbon Dioxide Production ◽  
Peak Oxygen Uptake ◽  
Healthy Controls ◽  
Ventilatory Equivalent ◽  
All Cause Mortality

Introduction. The relation between minute ventilation (VE) and carbon dioxide production (VCO2) can be characterised by the instantaneous ratio of ventilation to carbon dioxide production, the ventilatory equivalent for CO2(VEqCO2). We hypothesised that the time taken to achieve the lowest VEqCO2(time to VEqCO2 nadir) may be a prognostic marker in patients with chronic heart failure (CHF).Methods. Patients and healthy controls underwent a symptom-limited, cardiopulmonary exercise test (CPET) on a treadmill to volitional exhaustion.Results. 423 patients with CHF (mean age years; 80% males) and 78 healthy controls (62% males; age years) were recruited. Time to VEqCO2 nadir was shorter in patients than controls ( s versus  s; ). Univariable predictors of all-cause mortality included peak oxygen uptake (), VEqCO2nadir (), and time to VEqCO2nadir (). In an adjusted Cox multivariable proportional hazards model, peak oxygen uptake () and VEqCO2nadir () were the most significant independent predictors of all-cause mortality.Conclusion. The time to VEqCO2nadir was shorter in patients with CHF than in normal subjects and was a predictor of subsequent mortality.

scholarly journals Cardiac metaiodobenzylguanidine uptake in patients with moderate chronic heart failure: relationship with peak oxygen uptake and prognosis

1999 ◽  
Vol 33 (3) ◽  
pp. 759-766 ◽  
Author(s):  
Alain Cohen-Solal ◽  
Yves Esanu ◽  
Damien Logeart ◽  
Fabienne Pessione ◽  
Claude Dubois ◽  
...  
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Oxygen Uptake ◽  
Peak Oxygen Uptake
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