Acute Rheumatic Fever (ARF) and Rheumatic Heart Disease (RHD) in Grand Rapids, Michigan

Acute rheumatic fever (ARF) and rheumatic heart disease (RHD) are serious conditions that can develop after an untreated group A Streptococcus (“strep”) infection, usually strep throat. While they are less common in the United States than in many other parts of the world, they still occur and can cause lifelong heart problems if not recognized and treated.

In Grand Rapids, early diagnosis and treatment at local health systems like Corewell Health (formerly Spectrum Health), Trinity Health Grand Rapids, Metro Health – University of Michigan Health, and Mercy Health are key to preventing long‑term complications.

What Is Acute Rheumatic Fever (ARF)?

ARF is an abnormal immune response that develops about 2–3 weeks after an untreated group A strep throat infection (and possibly some skin infections like impetigo).

  • ARF is not contagious.
  • You cannot “catch” ARF from someone else; you catch the strep infection, and your immune system’s reaction can cause ARF.

How ARF Develops

  1. A person gets group A Streptococcus infection, usually:
    • Strep throat (GAS pharyngitis)
    • Sometimes skin infection (impetigo)
  2. If the infection is not treated promptly with antibiotics, the immune system can overreact.
  3. This abnormal immune response can cause inflammation in multiple organs, including:
    • Joints
    • Heart
    • Brain
    • Skin

Over time, this inflammation, especially in the heart, can lead to permanent damage to the heart valves, which is called rheumatic heart disease (RHD).

What Is Rheumatic Heart Disease (RHD)?

Rheumatic heart disease is the permanent damage to the heart, most often the heart valves, that results from one or more episodes of ARF.

  • RHD can occur after a single severe episode of ARF.
  • More commonly, it develops after repeated or recurrent episodes of ARF over years.
  • The heart valves are the most commonly damaged structures, but other parts of the heart can also be affected.

How Damaged Heart Valves Affect the Heart

Heart valves act like doors that open and close to keep blood flowing in the right direction. When they are damaged:

  • They may not open fully (stenosis).
  • They may not close properly (regurgitation or leakage).

This can lead to:

  • The heart having to work harder to pump blood.
  • Heart failure, where the heart cannot pump blood effectively.
  • Increased risk of blood clots, which can lead to stroke.
  • Higher risk of infective endocarditis, a serious infection of damaged heart valves.

Who Is at Risk in Grand Rapids?

ARF is most common in children ages 5–15 and is uncommon in adults. RHD can be diagnosed in children, teens, and adults.

In the United States, ARF and RHD are more common among:

  • People living in poverty or crowded housing
  • Communities with limited access to medical care
  • Immigrants and refugees from low‑ and middle‑income countries where ARF and RHD are more common

In Grand Rapids and Kent County, risk may be higher in:

  • Households with overcrowded living conditions
  • Families who have difficulty accessing primary care, transportation, or health insurance
  • Certain immigrant and refugee communities served by local organizations and clinics

Even though ARF and RHD are relatively rare in West Michigan, they can affect anyone, especially if strep throat is not treated properly.

Symptoms of Acute Rheumatic Fever (ARF)

ARF symptoms usually appear 2–3 weeks after a strep throat or skin infection. Not everyone has the same symptoms, but common signs include:

  • Fever
  • Fatigue or feeling very tired
  • Swollen, painful joints (arthritis), often:
    • Moving from one joint to another (migratory arthritis)
    • Usually affecting knees, ankles, elbows, or wrists
  • Uncontrollable body movements (chorea), such as:
    • Jerky, uncoordinated movements
    • Changes in handwriting or difficulty with fine motor tasks
  • Skin changes, including:
    • Painless lumps under the skin (subcutaneous nodules)
    • A ring‑shaped rash that may come and go (erythema marginatum)
  • Heart-related symptoms, such as:
    • Shortness of breath
    • Chest discomfort
    • Racing or pounding heartbeat (palpitations)

Because ARF can be easily missed or misdiagnosed, especially if the earlier strep infection was mild or unnoticed, it’s important to seek medical care in Grand Rapids if a child has:

  • A recent sore throat followed by joint pain, fever, or unusual movements
  • Unexplained shortness of breath or fatigue

How ARF Is Diagnosed in Grand Rapids

There is no single test that proves someone has ARF. Doctors in Grand Rapids (for example, at Corewell Health Helen DeVos Children’s Hospital or Trinity Health Grand Rapids) use a combination of:

  • Medical history
    • Recent sore throat or skin infection
    • Previous episodes of ARF
  • Physical examination
    • Checking joints, heart sounds, skin, and nervous system
  • Throat or skin swabs
    • To look for group A strep infection
  • Blood tests
    • To check for signs of inflammation
    • To detect evidence of a recent strep infection (e.g., ASO titer)
  • Electrocardiogram (ECG)
    • To look for electrical changes in the heart
  • Echocardiogram (echo)
    • Ultrasound of the heart
    • Assesses heart valves and checks for heart failure or valve damage

Many children with suspected ARF may need hospital admission for monitoring and treatment, which can be done at major Grand Rapids hospitals.

Symptoms and Diagnosis of Rheumatic Heart Disease (RHD)

RHD Often Has No Early Symptoms

RHD can be silent for years, especially in children and young adults. When symptoms do appear, they often include:

  • Shortness of breath, especially:
    • With activity
    • When lying flat
  • Fatigue and reduced exercise tolerance
  • Swelling in the legs, ankles, or feet
  • Racing or irregular heartbeat (arrhythmia)
  • Chest pain or discomfort

How RHD Is Diagnosed

RHD is usually diagnosed with:

  • Echocardiogram (echo)
    • The main test to assess:
      • Valve structure and function
      • How well the heart is pumping
      • Signs of heart failure
  • Medical history and physical exam
  • Electrocardiogram (ECG)
    • To detect abnormal rhythms or strain on the heart
  • Sometimes:
    • Chest X‑ray
    • Additional blood tests

In Grand Rapids, these tests are available through cardiology services at Corewell Health, Trinity Health Grand Rapids, Metro Health, and other local cardiology clinics.

Treatment of Acute Rheumatic Fever (ARF)

Treatment aims to:

  1. Eliminate the strep infection
  2. Reduce inflammation
  3. Protect the heart
  4. Prevent future episodes

Typical ARF management may include:

  • Antibiotics
    • Usually penicillin (or alternatives if allergic) to clear any remaining strep bacteria
  • Anti-inflammatory medicines
    • Such as aspirin or other medications to reduce joint pain, fever, and inflammation
  • Bed rest
    • Especially if there is heart involvement
  • Hospital care
    • For moderate to severe cases, especially with heart inflammation (carditis)

Children in Grand Rapids with ARF may be followed by pediatric cardiologists (e.g., at Helen DeVos Children’s Hospital) for ongoing monitoring.

Treatment and Management of Rheumatic Heart Disease (RHD)

While RHD damage is often permanent, treatment can:

  • Manage symptoms
  • Prevent complications
  • Slow progression of the disease

Management may include:

  • Regular antibiotics (secondary prophylaxis)
    • Long‑term penicillin injections or tablets to prevent new strep infections and reduce the risk of more ARF episodes
  • Heart failure medications, if needed:
    • Diuretics (to reduce fluid buildup)
    • ACE inhibitors or other heart medicines
  • Blood-thinning medicine (anticoagulants)
    • To prevent stroke or other clot-related complications
    • Especially if:
      • Valve replacement surgery has been done
      • There is an abnormal heart rhythm (like atrial fibrillation)
  • Surgery or procedures on heart valves
    • Valve repair or valve replacement in severe cases
  • Antibiotics before certain dental or surgical procedures
    • To prevent infective endocarditis (infection of damaged heart valves)

Good dental hygiene is especially important for people with RHD:

  • Brushing teeth twice daily
  • Flossing regularly
  • Routine dental check-ups in Grand Rapids dental practices
  • Prompt treatment of dental infections

Prevention of ARF and RHD in Grand Rapids

Preventing ARF and RHD is crucial because they can cause lifelong or permanent heart problems, even when treated.

Key Risk Factors

  • Poverty and overcrowded housing
  • Limited access to medical and dental care
  • Delayed or no treatment of strep throat or skin infections
  • Limited health literacy or awareness about the seriousness of strep throat

In Grand Rapids, families facing housing instability or financial hardship may be at higher risk. Local support may be available through:

  • Kent County Health Department
  • Grand Rapids Public Health programs
  • Community health centers and school‑based clinics

Primary Prevention: Stopping ARF Before It Starts

You can reduce the risk of ARF by:

  1. Improving living conditions (when possible)
    • Reducing household overcrowding
    • Ensuring access to clean water and facilities for hand and body washing
  2. Promptly treating group A strep infections
    • Seek medical care for:
      • Sore throat with fever
      • Painful swallowing
      • Red, swollen tonsils (sometimes with white patches)
    • In children, watch for skin infections (impetigo):
      • Red sores, often around the nose and mouth
      • Crusted, yellowish scabs
    • Visit:
      • Your primary care provider or pediatrician
      • Urgent care clinics in Grand Rapids
      • Community health centers serving Kent County
  3. Completing the full course of antibiotics
    • Even if symptoms improve early

Secondary Prevention: Preventing RHD and Further Damage

For people who have already had ARF:

  • Regular antibiotic prophylaxis (often monthly penicillin injections) to prevent new strep infections and reduce the chance of recurrent ARF
  • Regular heart check‑ups with a cardiologist
  • Good antenatal care for pregnant women with RHD
    • Pregnancy puts extra strain on the heart, so close monitoring is important
  • Staying up to date with vaccinations (such as flu and pneumococcal vaccines) to reduce illnesses that can stress the heart

Local Considerations in Grand Rapids and West Michigan

  • Cold winters and seasonal infections:
    Strep throat is more common in colder months when people are indoors and in close contact. In Grand Rapids, fall and winter are peak times for respiratory infections.
  • Great Lakes climate:
    Fluctuating temperatures and long winters can lead to more indoor crowding, which increases the spread of respiratory infections like strep throat.
  • Access to care:
    Utilize local resources:
    • Primary care and pediatric clinics across Grand Rapids
    • Kent County Health Department and community clinics for families without regular doctors or insurance
    • School‑based health programs for children and teens

Early recognition and treatment of strep throat is one of the most effective ways to prevent ARF and RHD in our community.

When to Seek Medical Help in Grand Rapids

Contact a healthcare provider or visit an urgent care or emergency department if:

  • Your child has sore throat with fever that lasts more than 24–48 hours
  • There is a known strep throat exposure in the household and your child develops a sore throat
  • After a recent sore throat, your child develops:
    • Joint pain or swelling
    • Fever
    • Unusual movements
    • Shortness of breath or chest discomfort
  • You have been told your child has a heart murmur and they seem more tired or short of breath

Local options include:

  • Pediatric and family medicine clinics at Corewell Health, Trinity Health Grand Rapids, Metro Health – U of M Health, and Mercy Health
  • Community health centers and urgent care clinics throughout the Grand Rapids metro area
  • Kent County Health Department and Grand Rapids Public Health resources for guidance and referrals

Key Points to Remember

  • ARF is not contagious; it is an immune reaction that occurs after an untreated group A strep infection.
  • The heart valves are the most commonly damaged part of the heart in RHD, though other heart structures can also be affected.
  • ARF and RHD can affect anyone, but risk is higher where there is poverty, overcrowding, and limited access to healthcare.
  • ARF can be missed or undiagnosed, which can lead to failure to prevent or recognize RHD.
  • Symptoms of ARF may include:
    • Fever, fatigue
    • Swollen, painful joints
    • Uncontrollable movements
    • Skin changes, including painless lumps or rash
    • Heart symptoms such as shortness of breath or a racing heartbeat
  • Prompt diagnosis and treatment of strep throat in Grand Rapids is one of the most important steps in preventing ARF and RHD.

If you live in the Grand Rapids area and are concerned about ARF, RHD, or frequent sore throats in your family, talk with your primary care provider or contact local resources like the Kent County Health Department for guidance and screening options.