Related Experiment Videos
Hyponatremia in patients with heart failure
Leonardo De Luca1, Liviu Klein, James E Udelson
1Department of Cardiovascular and Respiratory Sciences, La Sapienza University, Rome, Italy.
The American Journal of Cardiology
|January 10, 2006
Summary
Mild hyponatremia in heart failure patients predicts higher mortality. Correcting low sodium levels may improve survival, a hypothesis now under investigation in major clinical trials.
Area of Science:
- Cardiology
- Nephrology
- Internal Medicine
Background:
- Mild hyponatremia is common in hospitalized heart failure patients.
- Low plasma sodium on admission is a predictor of mortality and rehospitalization.
- Emerging evidence suggests hyponatremia correction may improve outcomes.
Purpose of the Study:
- To investigate the association between hyponatremia correction and survival in heart failure.
- To evaluate the prognostic significance of admission plasma sodium levels.
Main Methods:
- Observational analysis of hospitalized heart failure patients.
- Review of existing literature and ongoing prospective randomized clinical trials.
Main Results:
- Admission plasma sodium concentration is an independent predictor of post-discharge mortality.
- Admission plasma sodium concentration is an independent predictor of rehospitalization.
Conclusions:
- Hyponatremia is a significant clinical finding in heart failure.
- Further research, including ongoing trials, is needed to confirm if hyponatremia correction improves survival.
Related Concept Videos
01:22Heart Failure Drugs: Diuretics
Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
01:22Heart Failure VI: Adjunct Therapies
Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
01:30Heart Failure VII: Nursing Interventions
The first step in nursing management of a patient with heart failure involves thoroughly assessing the patient's medical history.Subjective Data: Obtain the patient's medical history of coronary artery disease, hypertension, myocardial infarction, and symptoms like dyspnea, orthopnea, and paroxysmal nocturnal dyspnea.Objective Data: Conduct a physical examination to identify findings such as jugular vein distention, pulmonary crackles, tachycardia, murmurs, peripheral edema, and vital signs,...
01:26Heart Failure Drugs: Inotropic Agents
Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
01:30Heart Failure V: Medical Management
Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
01:27Heart Failure I: Introduction
Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...