Related Experiment Video
Updated: Jul 12, 2026
11:12
Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves
Published on: October 17, 2013
Valve pathology in heart failure: which valves can be fixed?
Martinus T Spoor1, Steven F Bolling
1University of Michigan, Ann Arbor, MI 48103, USA.
Heart Failure Clinics
|August 29, 2007
Summary
Heart transplantation is a top treatment for severe heart failure, but donor limits restrict its use. Alternative surgical options are crucial for managing end-stage heart disease due to donor scarcity.
Area of Science:
- Cardiology
- Cardiac Surgery
- Transplantation Medicine
Background:
- Heart transplantation is the gold standard for severe congestive heart failure.
- Donor availability significantly limits the number of heart transplantations performed annually.
- Epidemiologic data reveals fewer than 2800 US patients receive heart transplants due to various constraints.
Purpose of the Study:
- To highlight the limitations of heart transplantation as a treatment for end-stage heart disease.
- To discuss the evolution of alternative surgical strategies necessitated by donor shortages.
- To explore innovative approaches for managing patients with severe heart conditions when transplantation is not feasible.
Main Methods:
- Review of epidemiologic data on heart transplantation rates.
- Analysis of current surgical techniques for end-stage heart disease.
- Identification of alternative treatment modalities addressing donor scarcity.
Main Results:
- Heart transplantation is epidemiologically limited, with fewer than 2800 patients offered the procedure in the US.
- Donor availability, age, and comorbidities are key limiting factors.
- Advanced surgical interventions have emerged as critical alternatives.
Conclusions:
- The donor shortage in heart transplantation necessitates alternative management strategies.
- High-risk surgical procedures are evolving to treat severe end-stage heart disease.
- Innovative surgical options offer hope for patients ineligible for heart transplantation.
Related Concept Videos
01:16Heart Valves
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
01:27Mitral Valve Prolapse I: Introduction
IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
01:20Mitral Regurgitation I: Introduction
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...
01:29Heart Failure II: Pathophysiology
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...
01:22Mitral Stenosis I: Introduction
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...
01:30Heart Failure IV: Classification and Diagnostic Evaluation
Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...