heart failure/hypoxia

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High-Output Heart Failure from a Hepatic Hemangioma With Exertion-Induced Hypoxia.

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Patients with hepatic hemangiomas have been known to have high-output heart failure as a result of left-to-right arteriovenous shunting. We report a patient with a hepatic hemangioma that presented with high-output heart failure with hypoxia on exertion. After embolization of the hemangioma, the

Developmental delay in infants with congenital heart disease. Correlation with hypoxemia and congestive heart failure.

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The mental and motor development of 173 infants with congenital heart disease was assessed by means of the Bayley Scales of Infant Development and clinical neurological examinations. The relationship between age, sex, congestive heart failure, hypoxemia, hospitalization, and test results was

Exercise training normalizes renal blood flow responses to acute hypoxia in experimental heart failure: role of the α1-adrenergic receptor.

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Recent data suggest that exercise training (ExT) is beneficial in chronic heart failure (CHF) because it improves autonomic and peripheral vascular function. In this study, we hypothesized that ExT in the CHF state ameliorates the renal vasoconstrictor responses to hypoxia and that this beneficial

[The role of plasmatic erythrocytic membrane in formation of hypoxia in patients with chronic cardiac failure].

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OBJECTIVE To study oxygen supply to erythrocytes in patients with chronic cardiac failure as a factor provoking hypoxia. METHODS The trial enrolled 12 men with chronic cardiac failure (CCF) of functional NYHA class II aged 37 to 74 years (group A). Group B--healthy donors (n = 10) aged 20-40 years.

Carvedilol modulates the expression of hypoxia-inducible factor-1alpha and vascular endothelial growth factor in a rat model of volume-overload heart failure.

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BACKGROUND The use of beta-blockers has emerged as a beneficial treatment for congestive heart failure. Hypoxia-inducible factor-1alpha (HIF-1alpha) is tightly regulated in the ventricular myocardium. However, the expression of HIF-1alpha in chronic heart failure resulting from volume overload and

[Recurrent pulmonary embolism with prolonged right heart failure and hypoxia after cerebral bleeding; report of a case].

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A 56-year-old woman with right hemiplegia for recent cerebral bleeding suddenly complained of dyspnea and chest pain with hypoxia during rehabilitation. Eight days after this first attack, she suffered prolonged right heart failure and hypoxia due to recurrent pulmonary embolism. Arterial blood gas

Congestive heart failure in unoperated tetralogy of Fallot: can hypoxia be a cause?

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A 10-year-old boy with tetralogy of Fallot and congestive heart failure underwent a right-sided modified Blalock-Taussig anastomosis because of severe biventricular dysfunction and repeated hypercyanotic spells. Postoperatively, there was improvement in systemic oxygen saturation and myocardial

[Prevention of heart failure by adapting the body to high-altitude hypoxia].

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The impact of adaptation of the body to various high-altitude levels was thoroughly studied in 355 Chinchilla rabbits. It was found that adaptation of the body to high-altitude conditions prevents to a great measure a complex of phenomena specific to heart failure: disturbed myocardial RNA

Myocyte cytoskeletal disorganization and right heart failure in hypoxia-induced neonatal pulmonary hypertension.

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Previous studies have demonstrated that environmentally or genetically induced changes in the intracellular proteins that compose the cytoskeleton can contribute to heart failure. Because neonatal right ventricular myocytes are immature and are in the process of significant cytoskeletal change, we

Mechanical ventilation in patients with hypoxemia due to refractory heart failure.

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OBJECTIVE The goal of this study was to evaluate the safety and efficacy of mechanical ventilation (MV), including noninvasive positive pressure ventilation (NPPV) and endotracheal intubation (ETI) in patients with very severe hypoxemia due to refractory heart failure (RHF). METHODS In addition to

Prevalence and Factors Contributing to Daytime and Nocturnal Hypoxemia in Chronic Heart Failure Patients.

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Despite clinical optimization, many chronic heart failure (CHF) patients remain symptomatic with dyspnea and poor quality of life.While oxygen therapy is prescribed in severe cases, the actual prevalence of different patterns of hypoxemia is

Exercise-induced hypoxemia predicts heart failure hospitalization and death in patients supported with left ventricular assist devices.

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Following implantation of continuous-flow left ventricular assist devices, mechanical off-loading results in improved resting hemodynamics; however, peak exercise capacity generally does not increase substantially. This study evaluated patients supported by continuous-flow left ventricular assist

[Intermittent Hypoxemia in Patients with Heart Failure with Preserved Ejection Fraction].

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Objective To investigate the characteristics of nocturnal intermittent hypoxemia in patients with heart failure(HF) with preserved ejection fraction(HFpEF).Methods Patients(n=854) who completed sleep test and echocardiography from January 2011 to December 2014 were retrospectively studied. HF

Deficiency of PDK1 in cardiac muscle results in heart failure and increased sensitivity to hypoxia.

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We employed Cre/loxP technology to generate mPDK1(-/-) mice, which lack PDK1 in cardiac muscle. Insulin did not activate PKB and S6K, nor did it stimulate 6-phosphofructo-2-kinase and production of fructose 2,6-bisphosphate, in the hearts of mPDK1(-/-) mice, consistent with PDK1 mediating these

The Relationship between Nocturnal Hypoxemia and Left Ventricular Ejection Fraction in Congestive Heart Failure Patients.

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Congestive heart failure (CHF) is a major cause of mortality and morbidity. Among patients with heart failure, sleep disordered breathing (SDB) is a common problem. Current evidence suggests that SDB, particularly central SDB, is more prevalent in patients with CHF than in the general population,

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