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Can group A beta haemolytic streptococcal sore throats be identified clinically?
K S de Silva1, M W Gunatunga, A J Perera
1Faculty of Medicine, University of Colombo.
Insights
Clinical signs cannot reliably differentiate Group A beta-hemolytic streptococcal (GABHS) throat infections from other causes in children. Throat cultures are essential for accurate diagnosis of GABHS pharyngitis.
Area of Science:
- Pediatrics
- Infectious Diseases
- Microbiology
Background:
- Group A beta-hemolytic streptococcal (GABHS) pharyngitis is a common childhood illness.
- Accurate diagnosis is crucial to prevent complications like rheumatic fever.
- Clinical differentiation from viral and other bacterial infections is often challenging.
Purpose of the Study:
- To determine if clinical manifestations can reliably differentiate GABHS throat infections from other causes in children.
- To assess the diagnostic value of specific signs and symptoms.
Main Methods:
- A study was conducted on children aged 3-12 years presenting with sore throats.
- Throat swabs were collected for bacterial culture.
- Clinical examinations included assessment for cervical lymphadenopathy and tonsillar exudate.
Main Results:
- GABHS was isolated from 44.5% of throat swabs.
- No specific clinical signs or symptoms were significantly associated with GABHS infection.
- Clinical differentiation of GABHS sore throats was not possible based on presented symptoms and signs.
Conclusions:
- Clinical assessment alone is insufficient for diagnosing GABHS pharyngitis in children.
- Throat swabs for culture are necessary for definitive diagnosis.
- In resource-limited settings without culture facilities, empirical treatment for GABHS may be considered.
Objective:
To differentiate the clinical manifestations of a Group A beta haemolytic streptococcal throat infection from viral and other bacterial infections.
Setting:
Outpatients' department, Lady Ridgeway Hospital, Colombo.
Patients And Methods:
Children aged 3 to 12 years attending with a sore throat. Throat swabs were taken and relevant details were obtained using a questionnaire. They were examined for significant cervical lymphadenopathy and tonsillar exudate.
Results:
Group A beta haemolytic streptococci were isolated from 61 (44.5%) throat swabs. Clinical differentiation of Group A beta haemolytic streptococcal sore throats was not possible as none of the symptoms or signs were significantly associated with the presence of this organism.
Conclusions:
Group A beta haemolytic streptococcal sore throats cannot be identified clinically, so that throat swabs for culture are necessary in children with sore throat. In the absence of this facility, it is reasonable to treat sore throats in children as for beta haemolytic streptococci.