Health Resources

Mitral Valve Prolapse (Children)

2026/01/29
What is Mitral Valve Prolapse?

Mitral valve prolapse is a common heart condition where the valve bulges (prolapses) excessively into the left atrium during closure. This abnormality can lead to the valve leaking resulting in a condition called mitral valve regurgitation. 

What Causes it
The most common cause of mitral valve prolapse is due to an abnormally stretchy valve leaflet. This is commonly seen in individuals with Marfan Syndrome or other inherited connective tissue diseases. The condition involves a leaking valve, which in many cases is mild and does not necessitate intervention. However, in some instances, surgical treatment may be required. 
Signs & Symptoms
Mitral valve prolapse is often harmless and majority of people have no symptoms. Some individuals who have moderate or severe prolapse may exhibit symptoms such as chest pain, breathlessness on exertion, episodes of feeling faint or palpitations.  
Diagnosis and Treatment Options
Individuals with mitral valve prolapse often have no symptoms and may be picked up by a doctor who detects a click or murmur during routine physical examination. Diagnostic tests would include a combination of the following, such as an electrocardiogram to look for any abnormal rhythms and an echocardiogram, which is a non-invasive ultrasound test to look at the mitral valve.  

In cases where the valve prolapse is severe, repair or sometimes replacement of the valve may be necessary. Lifelong prophylaxis against endocarditis during at-risk occasions is recommended for individuals with mitral valve prolapse. 
Care Tips

Dental Care 

Good dental hygiene is essential, especially for all children and adults. Regular dental check-ups are crucial. 

The use of antibiotics before a dental procedure is no longer recommended for people with mitral valve prolapse, regardless of whether they have associated symptoms.  

Exercise 

Children who have mitral valve prolapse, especially those who experience rhythm problems, collapse during exercise or have a family history of sudden cardiac death, are advised to engage in light, low-impact physical activities, such as golf and cricket. 

Exercise is beneficial, even for those with heart conditions. It improves heart function, overall well-being and is associated with increased life expectancy and reduced heart disease risk in later life. It also aids in weight control and in lowering blood pressure. 

Different types of exercise, such as static (e.g. weight lifting) and dynamic (e.g. running), have varying impacts on the body and heart. Children with heart conditions should consult their doctor to determine safe levels and types of exercise, especially in school settings where physical activities can be intensive 

Vaccination 

Most children with heart disease can follow the standard vaccination schedule. However, those with immune deficiencies, such as DiGeorge syndrome or an isomerism, or those who are receiving immunosuppression, such as post-transplantation, may require a modified vaccination schedule. 

Travel Advice 

Before travelling, especially long distances or to unusual destinations, we recommend to: 

  • Have a recent medical check-up 
  • Ensure appropriate insurance coverage 
  • Carry an adequate supply of medication 
  • Be informed about the local healthcare quality and accessibility 
  • Carry relevant documentation about the heart condition   
  • For cyanotic heart disease patients, be aware of potential oxygen needs during flights 
  • Use support stockings and take aspirin or an equivalent unless your doctor advises against it 

Diet 

Special diets are not normally required for those with heart disease, but a balanced one is important. Maintaining a normal weight is crucial as excess weight increases the heart's workload. 

Infection 

Children with heart disease are generally not more prone to infections. However, some may be susceptible to chest infections or have associated immune deficiencies, particularly those with holes in the heart (ASD, VSD, PDA). Viral infections are common and usually resolve without antibiotics, but medical advice should be sought in case of uncertainty. 

Medication 

Not all children with heart disease require medication. Those who do may need it for fluid reduction, to aid heart pumping, for rhythm control or for blood thinning. 

While these medications are generally safe, side effects can occur, especially with other illnesses or medication changes. Any unusual symptoms or side-effects should be promptly reported to the doctor. 

Pregnancy 

Most women with heart disease can have a normal pregnancy and delivery. Exceptions may include those with severe cyanosis or pulmonary hypertension, where pregnancy can pose significant risks. 

It is essential to seek medical advice before pregnancy so the process can be monitored and, if treatment is necessary, provided early. 

The risk of heart disease in offspring varies, with some evidence suggesting that maternal vitamin intake before and during early pregnancy may reduce risks. 

About Us
The Department of Paediatrics, Khoo Teck Puat – National University Children’s Medical Institute (KTP-NUCMI) is part of the National University Centre for Women and Children (NUWoC)

Our paediatricians provide comprehensive and specialised medical and surgical services for newborns, children and adolescents. 

Click here for information on how to make an appointment with our paediatricians. 
Health Resources
Click here to view more resources on women and children’s health.
Last updated on
Best viewed with Chrome 79.0, Edge 112.0, Firefox 61.0, Safari 11
National University Health System
  • National University Hospital
  • Ng Teng Fong General Hospital
  • Alexandra Hospital
  • Tengah General and Community Hospital
  • Jurong Community Hospital
  • National University Polyclinics
  • Jurong Medical Centre
  • National University Cancer Institute, Singapore
  • National University Heart Centre, Singapore
  • National University Centre for Oral Health, Singapore
  • NUHS Diagnostics
  • NUHS Pharmacy
  • NUHS Regional Health System Office
  • NUS Yong Loo Lin School of Medicine
  • NUS Faculty of Dentistry
  • NUS Saw Swee Hock School of Public Health
Back to Top