DefinitionA heart murmur is a sound made by turbulent blood flow in the heart. It sounds like whooshing or swishing with each heartbeat. Some adults and many children have incidental heart murmurs that are harmless and are not caused by abnormalities in the heart. However, some heart murmurs can signal an underlying heart problem.
|Heartbeat: Anatomy of the Heart|
|Copyright © Nucleus Medical Media, Inc.|
CausesBenign murmurs are caused by the normal flow of blood through the heart and large vessels near the heart. The murmur may come and go over time. Some things that can increase blood flow and cause a benign heart murmur to be heard include:
- Structural abnormalities of the heart valves (most common)—these may be congenital (present from birth) or acquired later in life. Examples include:
- Abnormal holes or connections in the structure of the heart or vessels persisting after birth:
- Structural abnormality of the heart muscle:
- Other congenital heart conditions, such as:
- Endocarditis —infection of the inner lining of heart valves and chambers (endocardium)
- Rheumatic fever—inflammation and damage of the heart valves from poorly treated strep throat
- Cardiac myxoma—a benign soft tumor within the heart (rare)
More from Beliefnet
Insomnia can make your days miserable and a cure can be hard to find. There are some medications but there is some worry with side effects and the potential for addiction. Music is side effect free and according to this study may help you find sleep.
CPAP May Help Older Adults with Obstructive Sleep Apnea
Water Before Meals May Promote Weight Loss
Fecal Transplants Induce Ulcerative Colitis Remission