Cardiac Output during Exercise in Chronic Cardiac Failure

1996 ◽  
Vol 90 (s34) ◽  
pp. 28P-29P
Author(s):  
IC Steele ◽  
A Moore ◽  
A-M Nugent ◽  
NPS Campbell ◽  
DP Nicholls
Keyword(s):  
Cardiac Output ◽  
Cardiac Failure ◽  
Chronic Cardiac Failure

scholarly journals Cardiac Output Response to Exercise in Chronic Cardiac Failure Patients

2012 ◽  
Vol 53 (5) ◽  
pp. 293-298 ◽  
Author(s):  
Taira Fukuda ◽  
Akihiro Matsumoto ◽  
Miwa Kurano ◽  
Haruhito Takano ◽  
Haruko Iida ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Cardiac Failure ◽  
Output Response ◽  
Chronic Cardiac Failure ◽  
Response To Exercise

Non-invasive Measurement of Cardiac Output and Ventricular Ejection Fractions in Chronic Cardiac Failure: Relationship to Impaired Exercise Tolerance

1997 ◽  
Vol 93 (3) ◽  
pp. 195-203 ◽  
Author(s):  
Ian C. Steele ◽  
ANN Moore ◽  
Anne-Marie Nugent ◽  
Marshall S. Riley ◽  
Norman P. S. Campbell ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Oxygen Consumption ◽  
Oxygen Uptake ◽  
Cardiac Failure ◽  
Exercise Tolerance ◽  
Perceived Exertion ◽  
Lactate Concentration ◽  
Submaximal Exercise ◽  
Chronic Cardiac Failure ◽  
And Control

1. The role of cardiac output limitation in the pathophysiology of exercise in patients with chronic failure remains undefined. During steady-state submaximal exercise, oxygen uptake is similar in patients and control subjects, but it is not known if cardiac output is also similar. We wished to determine if the reduced exercise tolerance of patients with chronic cardiac failure during such exercise is related to reduced cardiac output, or to peripheral factors. 2. Ten male patients with stable chronic failure and ten age-matched male normal controls were studied at rest and during exercise. Each subject performed a familiarization exercise test, a symptom-limited maximal exercise test and two submaximal exercise tests. Cardiac output was measured by a carbon dioxide rebreathing method. We also measured oxygen consumption, ventilation, Borg score of perceived exertion and venous lactate concentration, and ejection fractions. 3. As expected, patients had lower peak oxygen consumption [median (range) 1.18 (0.98–1.76) versus 1.935 (1.53–2.31) 1/min; P < 0.001], lower peak venous lactate concentration but a similar overall level of perceived exertion. At the same submaximal workload, patients and control subjects had similar oxygen consumption [0.67 (0.59–0.80) versus 0.62 (0.52–0.82) 1/min] and cardiac output [6.92 (5.79–9.76) versus 7.3 (5.99–10.38) 1/min] but the patients had a greater perceived level of exertion [Borg score: 4 (1–6) versus 3 (1–5); P < 0.005], higher venous lactate concentration [1.6 (1–3.3) versus 1.14 (0.7–1.7) mmol/l; P < 0.05] and higher heart rate [106 (89–135) versus 87 (69–112) beats/min;P < 0.005]. 4. During submaximal exercise at a similar absolute workload, patients with cardiac failure have a similar oxygen uptake and cardiac output but greater anaerobiosis and increased fatigue when compared with normal subjects. These findings appear to relate predominantly to changes that occur in the periphery rather than abnormalities of central cardiac function.

Regulation of Cardiac Output in Cardiac Failure

2015 ◽  
pp. 221-230
Author(s):  
R. Gourgon ◽  
J. P. Merillon ◽  
Y. Pansard ◽  
R. Prasquier ◽  
J. Y. Baglin ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Cardiac Failure

Body composition and energy expenditure of patients with chronic cardiac failure

1998 ◽  
Vol 28 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Steele ◽  
Young ◽  
Stevenson ◽  
Maguire ◽  
Livingstone ◽  
...  
Keyword(s):  
Body Composition ◽  
Energy Expenditure ◽  
Cardiac Failure ◽  
Chronic Cardiac Failure

Extracorporeal life support with an integrated left ventricular vent in children with a low cardiac output

2013 ◽  
Vol 24 (4) ◽  
pp. 654-660 ◽  
Author(s):  
Stany Sandrio ◽  
Wolfgang Springer ◽  
Matthias Karck ◽  
Matthias Gorenflo ◽  
Alexander Weymann ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Cardiac Failure ◽  
Life Support ◽  
Extracorporeal Life Support ◽  
Left Ventricular ◽  
Neurological Dysfunction ◽  
Left Heart ◽  
Low Cardiac Output ◽  
Cardiac Thrombus ◽  
The Right

AbstractBackground: The aim of this study was to evaluate our experience in central extracorporeal life support with an integrated left ventricular vent in children with cardiac failure. Methods: Eight children acquired extracorporeal life support with a left ventricular vent, either after cardiac surgery (n = 4) or during an acute cardiac illness (n = 4). The ascending aorta and right atrium were cannulated. The left ventricular vent was inserted through the right superior pulmonary vein and connected to the venous line on the extracorporeal life support such that active left heart decompression was achieved. Results: No patient died while on support, seven patients were successfully weaned from it and one patient was transitioned to a biventricular assist device. The median length of support was 6 days (range 5–10 days). One patient died while in the hospital, despite successful weaning from extracorporeal life support. No intra-cardiac thrombus or embolic stroke was observed. No patient developed relevant intracranial bleeding resulting in neurological dysfunction during and after extracorporeal life support. Conclusions: In case of a low cardiac output and an insufficient inter-atrial shunt, additional left ventricular decompression via a vent could help avoid left heart distension and might promote myocardial recovery. In pulmonary dysfunction, separate blood gas analyses from the venous cannula and the left ventricular vent help detect possible coronary hypoxia when the left ventricle begins to recover. We recommend the use of central extracorporeal life support with an integrated left ventricular vent in children with intractable cardiac failure.

Acute administration of captopril lowers the natriuretic and diuretic response to a loop diuretic in patients with chronic cardiac failure

1991 ◽  
Vol 12 (8) ◽  
pp. 924-927 ◽  
Author(s):  
A. D. Flapan ◽  
E. Davies ◽  
C. Waugh ◽  
B. C. Williams ◽  
T. R. D. Shaw ◽  
...  
Keyword(s):  
Cardiac Failure ◽  
Loop Diuretic ◽  
Acute Administration ◽  
Chronic Cardiac Failure ◽  
Diuretic Response
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