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A Comprehensive Review Study on Glomerulonephritis Associated With Post-streptococcal Infection
Mustafa A Alhamoud1, Ibrahim Z Salloot1, Shamim S Mohiuddin2
1Medicine, College of Medicine, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Dammam, SAU.
Insights
Post-streptococcal glomerulonephritis (PSGN) is an immune-mediated kidney inflammation following Group A Streptococcus infections. Prompt antibiotic treatment of these infections is crucial for preventing PSGN complications like chronic kidney disease.
Area of Science:
- Nephrology
- Immunology
- Infectious Diseases
Background:
- Post-streptococcal glomerulonephritis (PSGN) is a significant cause of acute nephritis in children, triggered by specific Group A beta-hemolytic streptococci strains.
- This condition results from an immune complex-mediated inflammatory response within the glomeruli following skin or throat infections.
- Group A Streptococcus (GAS) is a major pathogen responsible for numerous deaths annually due to complications like rheumatic heart disease, rheumatic fever, and invasive infections.
Purpose of the Study:
- To elucidate the pathogenesis, diagnosis, and management of Post-streptococcal glomerulonephritis (PSGN).
- To highlight the role of Group A Streptococcus (GAS) infections in triggering PSGN.
- To emphasize the importance of early diagnosis and symptomatic management of PSGN.
Main Methods:
- Diagnosis involves laboratory tests such as microscopy and urinalysis.
- Imaging studies may be utilized to identify complications like pulmonary congestion and chronic kidney disease.
- The study reviews the immunologic mechanism involving antigen-antibody and complement system formation leading to glomerular injury.
Main Results:
- PSGN is characterized by glomerular inflammation due to deposited immune complexes following a GAS infection.
- Clinical manifestations align with nephritic syndrome.
- Untreated PSGN can progress to chronic kidney disease.
Conclusions:
- Effective management of PSGN is primarily symptomatic.
- Preventing PSGN hinges on the timely and adequate antibiotic treatment of primary Group A Streptococcus infections.
- Early intervention can mitigate the risk of developing severe complications such as chronic kidney disease.
Abstract:
Post-streptococcal glomerulonephritis (PSGN) is an immune-complex mediated inflammation that used to be considered one of the commonest causes of acute nephritis amongst children. PSGN is characterized by the proliferation of cellular elements called nephritogenic M type as a result of an immunologic mechanism following an infection of the skin (impetigo) or throat (pharyngitis) caused by nephritogenic strains of group A beta-hemolytic streptococci, a gram-positive bacteria that enters the body across pores in the skin or mucus epithelia and is responsible for more than 500,000 deaths annually due to multiple subsequence diseases such as rheumatic heart disease, rheumatic fever, PSGN, and other invasive infections. After the infection, the formation of an immune complex of antigen-antibody and complement system will take place and will deposit in the glomeruli where the injury occurs and leads to inflammation. The manifestations of PSGN can be explained by nephritic syndrome manifestation. PSGN is diagnosed by laboratory tests like microscopy and urinalysis. The imaging studies in PSGN could be used to assess the possible complications of PSGN such as pulmonary congestion and chronic kidney disease. The management of PSGN is symptomatic. If PSGN is not treated, the patient may develop chronic kidney disease. The main way to prevent PSGN is to treat group A streptococcal (GAS) infections by giving good coverage of antibiotic therapy to a patient who has primary GAS infections to prevent the development of the complication.
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