Introduction: Post-streptococcal chorea is the most common form of acquired chorea in children. Objective: The objective of this study was to contribute to better management of this condition by giving the characteris...Introduction: Post-streptococcal chorea is the most common form of acquired chorea in children. Objective: The objective of this study was to contribute to better management of this condition by giving the characteristics of the epidemiological, clinical, biological, etiological, therapeutic and evolutionary aspects. Methodology: This was a retrospective and descriptive study from January 2021 to December 2021 which took place in the pediatrics department of the Mother and Child University Teaching Hospital of N’Djamena (CHU-ME). All the children in whom we observed abnormal involuntary movements whose age was less than or equal to 15 years were concerned. Result: there were three female children. The average age was 7.5, of which the two are 7 years old and the third is 8 years old. Two had a history of angina. A notion of polyarthralgia and dental caries was found in the third. The diagnosis of post-streptococcal chorea was retained on the basis of clinical arguments: observation of abnormal movements of the limbs and the face, which are involuntary, sudden with an insidious and progressive onset, muscular hypotonia, and psychic disorder. Medical imaging, in particular echocardiography, which objectified two cases of associated rheumatic valvular disease. Remission was observed in all three children after two weeks of treatment with haloperidol, penicillin. Those with associated rheumatic valve disease also received corticosteroid therapy. Complete remission of chorea was observed in all three girls. Prophylaxis in two patients based on Penicillin V was instituted. Conclusion: Although less frequent, post-streptococcal chorea is still seen in our country and is still an important health problem that needs more real medical efforts.展开更多
Background:The neuropsychiatric disorders due to post-streptococcal autoimmune complications such as Sydenham's chorea(SC)are associated with acute rheumatic fever and rheumatic heart disease(ARF/RHD).An animal mo...Background:The neuropsychiatric disorders due to post-streptococcal autoimmune complications such as Sydenham's chorea(SC)are associated with acute rheumatic fever and rheumatic heart disease(ARF/RHD).An animal model that exhibits char-acteristics of both cardiac and neurobehavioral defects in ARF/RHD would be an important adjunct for future studies.Since age,gender,strain differences,and geno-types impact on the development of autoimmunity,we investigated the behavior of male and female Wistar and Lewis rat strains in two age cohorts(6 weeks and 12 weeks)under normal husbandry conditions and following exposure to group A streptococcus(GAS).Methods:Standard behavioral assessments were performed to determine the impair-ments in fine motor control(food manipulation test),gait and balance(beam walk-ing test),and obsessive-compulsive behavior(grooming and marble burying tests).Furthermore,electrocardiography,histology,and behavioral assessments were per-formed on male and female Lewis rats injected with GAS antigens.Results:For control Lewis rats there were no significant age and gender dependent differences in marble burying,food manipulation,beam walking and grooming be-haviors.In contrast significant age-dependent differences were observed in Wistar rats in all the behavioral tests except for food manipulation.Therefore,Lewis rats were selected for further experiments to determine the effect of GAS.After ex-posure to GAS,Lewis rats demonstrated neurobehavioral abnormalities and cardiac pathology akin to SC and ARF/RHD,respectively.Conclusion:We have characterised a new model that provides longitudinal stability of age-dependent behavior,to simultaneously investigate both neurobehavioral and cardiac abnormalities associated with post-streptococcal complications.展开更多
文摘Introduction: Post-streptococcal chorea is the most common form of acquired chorea in children. Objective: The objective of this study was to contribute to better management of this condition by giving the characteristics of the epidemiological, clinical, biological, etiological, therapeutic and evolutionary aspects. Methodology: This was a retrospective and descriptive study from January 2021 to December 2021 which took place in the pediatrics department of the Mother and Child University Teaching Hospital of N’Djamena (CHU-ME). All the children in whom we observed abnormal involuntary movements whose age was less than or equal to 15 years were concerned. Result: there were three female children. The average age was 7.5, of which the two are 7 years old and the third is 8 years old. Two had a history of angina. A notion of polyarthralgia and dental caries was found in the third. The diagnosis of post-streptococcal chorea was retained on the basis of clinical arguments: observation of abnormal movements of the limbs and the face, which are involuntary, sudden with an insidious and progressive onset, muscular hypotonia, and psychic disorder. Medical imaging, in particular echocardiography, which objectified two cases of associated rheumatic valvular disease. Remission was observed in all three children after two weeks of treatment with haloperidol, penicillin. Those with associated rheumatic valve disease also received corticosteroid therapy. Complete remission of chorea was observed in all three girls. Prophylaxis in two patients based on Penicillin V was instituted. Conclusion: Although less frequent, post-streptococcal chorea is still seen in our country and is still an important health problem that needs more real medical efforts.
基金RAM Rafeek is recipient of International Postgraduate Research Award(IPRA)from University of New England.CM Lobbe and E.Wilkinson are recipients of student scholarship from the Royal College of Pathologists of Australasia(RCPA).
文摘Background:The neuropsychiatric disorders due to post-streptococcal autoimmune complications such as Sydenham's chorea(SC)are associated with acute rheumatic fever and rheumatic heart disease(ARF/RHD).An animal model that exhibits char-acteristics of both cardiac and neurobehavioral defects in ARF/RHD would be an important adjunct for future studies.Since age,gender,strain differences,and geno-types impact on the development of autoimmunity,we investigated the behavior of male and female Wistar and Lewis rat strains in two age cohorts(6 weeks and 12 weeks)under normal husbandry conditions and following exposure to group A streptococcus(GAS).Methods:Standard behavioral assessments were performed to determine the impair-ments in fine motor control(food manipulation test),gait and balance(beam walk-ing test),and obsessive-compulsive behavior(grooming and marble burying tests).Furthermore,electrocardiography,histology,and behavioral assessments were per-formed on male and female Lewis rats injected with GAS antigens.Results:For control Lewis rats there were no significant age and gender dependent differences in marble burying,food manipulation,beam walking and grooming be-haviors.In contrast significant age-dependent differences were observed in Wistar rats in all the behavioral tests except for food manipulation.Therefore,Lewis rats were selected for further experiments to determine the effect of GAS.After ex-posure to GAS,Lewis rats demonstrated neurobehavioral abnormalities and cardiac pathology akin to SC and ARF/RHD,respectively.Conclusion:We have characterised a new model that provides longitudinal stability of age-dependent behavior,to simultaneously investigate both neurobehavioral and cardiac abnormalities associated with post-streptococcal complications.
