[Diagnosis of streptococcal pharyngo-tonsillitis: clinical criteria or coagglutination?]. / Diagnóstico de faringoamigdalitis estreptocóccica: criterio clínico o coaglutinación?
Bol Med Hosp Infant Mex
; 48(9): 627-36, 1991 Sep.
Article
em Es
| MEDLINE
| ID: mdl-1777093
With the purpose of evaluating the usefulness of clinical data and a coagglutination test for the diagnosis of streptococcal pharyngeal tonsillitis, a study was carried out comparing both methods with the standard pharynx culture (gold standard). One hundred and forty-one patients clinically diagnosed with pharyngeal tonsillitis were analyzed. 80 other patients diagnosed with rhino-pharyngitis were used as control groups as well as a group of 66 healthy patients. It was found that the presence of pus in the tonsils and the absence of rhinorrhea and/or a productive cough were isolated clinical variables which showed a significant difference when comparing those cases with a positive or a negative culture (P less than 0.01). These clinical data had a sensitivity and adequate negative predictive values (68 to 83% and 90 to 92%, respectively); specificity was 44 to 74% and the positive predictive value from 24 to 36%. The gathering of combined clinical indexes with different symptoms and signs, were not greater than isolated data. The coagglutination test in those cases of pharyngeal tonsillitis showed greater better specificity (98%) and positive predictive value (93%), but saw no improvement in sensitivity (72%) nor in the negative predictive value (91%), which is why when faced with a negative coagglutination test, it is still necessary to perform a throat culture due to the risk which the patient may be exposed to when no treatment is given. The analysis of the advantages and disadvantages in the routine use of coagglutination and cultures in their particular cases, allows us to conclude that in daily clinical practice the use of clinical criteria is of greater usefulness.(ABSTRACT TRUNCATED AT 250 WORDS)
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Exame Físico
/
Infecções Estreptocócicas
/
Streptococcus pyogenes
/
Testes de Aglutinação
/
Faringite
/
Tonsilite
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Adolescent
/
Adult
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
Idioma:
Es
Revista:
Bol Med Hosp Infant Mex
Ano de publicação:
1991
Tipo de documento:
Article
País de publicação:
México