About Post Streptococcal Glomerulonephritis
Post-Streptococcal Glomerulonephritis (PSGN) is a kidney disease caused by the immune system’s reaction to an untreated infection with specific strains of Streptococcus pyogenes, also known as Group A Streptococcus. It often develops following throat or skin infections such as strep throat or impetigo. PSGN most commonly affects children between the ages of 5 and 12 but can occur at any age.
The condition involves inflammation of the glomeruli, the tiny filtering units in the kidneys that remove waste and excess fluid from the blood. This inflammation can lead to noticeable symptoms like swelling (edema), blood in the urine (hematuria), which may appear reddish or brown, high blood pressure (hypertension), and protein in the urine (proteinuria). In some cases, individuals may also experience reduced urine output, fatigue, or other signs of kidney dysfunction. While PSGN often gets better on its own and has a good outlook, it’s important to see a doctor for the right diagnosis and treatment to avoid serious problems, especially in more severe cases.
Post Streptococcal Glomerulonephritis (PSGN) is caused by an immunological response to certain strains of Streptococcus bacteria. PSGN occurs as a result of an untreated infection with nephritogenic strains of group A beta-hemolytic streptococci. These bacteria can cause pharyngitis (throat infection) or impetigo (skin infection).
The risk factors for PSGN can be divided into non-modifiable and modifiable factors.
Non-modifiable risk factors are factors that cannot be changed. They are:
- Age: Children between the ages of 2 and 12 are more susceptible to PSGN.
- Genetic factors: Although PSGN is not typically inherited, certain genetic factors may predispose individuals to the condition.
Modifiable risk factors are ractors that can be influenced or changed. They are:
- Overcrowding: Living in crowded conditions increases the risk of Streptococcal infections, which can lead to PSGN.
- Poor hygiene: Lack of access to adequate water, poor personal hygiene practices, and lack of education about hygiene contribute to the risk of infection.
- Environmental factors: Factors such as heat and humidity can create an environment conducive to the spread of Streptococcal infections.
- Use of certain medications: Long-term use of non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen or aspirin, may increase the risk of developing PSGN.
It's important to note that while these risk factors may increase the likelihood of developing PSGN, they do not guarantee its occurrence. If you have concerns about your risk for PSGN, it's best to consult with your healthcare professional for personalized advice.
The most common early symptoms of Post Streptococcal Glomerulonephritis (PSGN) include:
- Puffiness of the face upon waking up
- Urine that is brown or contains traces of blood
- Decreased urination
- Fluid in the lungs leading to coughing and shortness of breath
- High blood pressure
As PSGN progresses or becomes more severe, other common symptoms may occur, including:
- Swollen ankles or face due to water retention
- Frequent urination during the night
- Bubbles or foam in the urine caused by excess protein
- Poor appetite, nausea, and vomiting (in cases of kidney failure)
- Tiredness due to disrupted sleep patterns and muscle cramps at night
- Dry and itchy skin
- Intense pain in the upper back, behind the ribs, due to kidney pain
It's important to note that these symptoms can vary depending on the individual and the severity of PSGN. If you experience any of these symptoms or suspect you may have PSGN, it is important to consult with a healthcare professional for an accurate diagnosis and appropriate treatment.
To diagnose Post Streptococcal Glomerulonephritis, the following examinations, tests, and procedures are commonly performed:
- Physical Exam: The healthcare provider will look for physical signs of a medical problem, such as pain, swelling, or the presence of masses within the body.
- Lab Tests: Specific lab tests may be recommended, such as a blood draw or urine analysis. These tests can help evaluate kidney function and detect any abnormalities.
- Imaging Studies: Depending on the symptoms and clinical findings, imaging studies like an X-ray or MRI may be ordered to assess the kidneys' structure and identify any abnormalities.
To determine the stage or severity of Post Streptococcal Glomerulonephritis, additional examinations, tests, and procedures may include:
- Kidney Biopsy: A kidney biopsy involves taking a small sample of kidney tissue for examination under a microscope. This procedure helps determine the extent of inflammation and damage to the kidneys.
- Renal Function Tests: These tests assess how well the kidneys are functioning by measuring levels of waste products in the blood and evaluating electrolyte balance.
- Immunological Tests: Immunological tests can help identify antibodies or immune system abnormalities that may be contributing to the condition.
It's important to consult with your healthcare provider to determine which specific examinations, tests, and procedures are appropriate for your individual situation.
The goals of treatment for Post Streptococcal Glomerulonephritis (PSGN) are to manage symptoms, prevent complications, and promote kidney health. Here are the recommended treatments and how they work to achieve these goals:
- Antibiotics: These medications are used to treat the underlying streptococcal infection that caused PSGN. They work by killing the bacteria responsible for the infection.
- Symptomatic management: Treatment focuses on managing symptoms such as high blood pressure and fluid retention. This may involve:
- Diuretics: Help reduce fluid retention and control hypertension.
- Blood pressure medication: Helps relax blood vessels and lower blood pressure.
- Immune-suppressing drugs: In severe or rapidly progressive cases, corticosteroids or other immune-suppressing medications may be prescribed to control inflammation and reduce kidney damage.
- Plasmapheresis: This procedure removes plasma with antibodies from the blood in individuals with autoimmune problems, helping to alleviate symptoms.
- Dialysis: In cases of acute PSGN or severe kidney damage, temporary dialysis may be necessary. Dialysis helps filter waste products from the body, control hypertension, and remove excess fluid.
- Kidney transplant: If an individual is otherwise healthy and cannot receive a transplant, a kidney transplant may be considered as a long-term treatment option.
It's important to note that specific medication types, therapies, therapeutic procedures, health behavior changes, or other treatments may vary depending on the individual's condition and severity of PSGN. Always consult with a healthcare professional for personalized advice. Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Other side effects can occur. Check with your health care professional or read the information provided with your medication for additional side effect information.