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Related Concept Videos

Mitral Regurgitation I: Introduction01:20

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Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
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Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
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The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
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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.
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Right ventricular outflow tract function in chronic heart failure.

Bulent Deveci1, Kazim Baser2, Murat Gul3

  • 1Akay Hospital, Department of Cardiology, Ankara, Turkey.

Indian Heart Journal
|April 9, 2016
PubMed
Summary
This summary is machine-generated.

Right ventricular outflow tract (RVOT) fractional shortening (RVOT-FS) is a valuable, noninvasive measure of right ventricular function in heart failure (HF) patients. This metric aids in assessing HF severity and patient prognosis, complementing other echocardiographic evaluations.

Keywords:
Heart failureRVOTRight ventricular function

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Area of Science:

  • Cardiology
  • Echocardiography
  • Heart Failure Research

Background:

  • Heart failure (HF) presents complex clinical challenges, with some patients exhibiting disproportionate symptoms relative to standard hemodynamic and left ventricular ejection fraction (LVEF) measures.
  • Right ventricular (RV) function is a critical prognostic indicator in HF, yet its assessment is complicated by the RV's intricate geometry.

Discussion:

  • This study explored the clinical utility of RV outflow tract (RVOT) function, specifically RV outflow tract fractional shortening (RVOT-FS), assessed via transthoracic echocardiography in heart failure patients.
  • Investigated 36 chronic HF patients with dilated cardiomyopathy and LV systolic dysfunction against 21 healthy controls.

Key Insights:

  • RVOT-FS was significantly lower in HF patients compared to controls (18.8±15.7 vs 55.8±6.7, p<0.001).
  • RVOT-FS demonstrated strong positive correlation with TAPSE (r=0.814, p<0.001) and inverse correlations with SPAP (r=-0.728, p<0.001) and functional capacity (r=-0.842, p<0.001).
  • RVOT-FS showed significant differences across HF subgroups based on NYHA functional capacity (p<0.001), independent of LVEF.

Outlook:

  • RVOT-FS offers a noninvasive, easily applicable method for evaluating RV function in HF.
  • This parameter can enhance comprehensive assessment and follow-up of HF patients when used alongside other RV assessment tools.
  • RVOT-FS may help elucidate the discordance between LVEF and functional impairment in HF, potentially by reflecting underlying RV dysfunction.