Immunogenetic study of the response to streptococcal carbohydrate antigen of the cell wall in rheumatic fever

Case report: Post-streptococcal pustulosis after subcutaneous injection of secukinumab

An acute diffuse pustular eruption occurred in a patient after secukinumab injection and then the clinical presentation has been related to streptococcus infection after it has been isolated from throat swabs. Pustulosisacuta generalisata was definitively diagnosed. Antibiotic treatment had a poor effect, but the response to glucocorticoids was better.

Unilateral granulomatous post-streptococcal uveitis with elevated tension

PURPOSE

We document a presumptive case of unilateral post-streptococcal uveitis. The affected eye manifested a granulomatous anterior uveitis with elevated intra-ocular pressure (IOP) compared with the contra-lateral eye. This presentation was preceded by a recent streptococcal pharyngitis.

CASE REPORT

An asymptomatic, otherwise healthy 13-year-old black female presented with anterior chamber cells, mutton fat resembling keratic precipitates, and elevated IOP in the left eye relative to the right eye. The patient had been diagnosed with streptococcal pharyngitis approximately 1 week before her eye examination. A blood chemistry analysis, rheumatoid profile panel and antistreptolysin antibody titer were requested. The patient was prescribed predinisolone acetate 1% ophthalmic suspension in the left eye.

RESULTS

Anti-streptolysin antibody titers were significantly elevated (291 IU/ml). The patient responded favorably to topical ophthalmic steroid treatment with a reduction of IOP and inflammation.

CONCLUSIONS

Unilateral, granulomatous anterior uveitis may be a variant manifestation of post-streptococcal uveitis. The IOP elevation in these cases may result secondary to concurrent trabeculitis.

Choroiditis, Pigment Epithelial Detachment, and Cystoid Macular Edema as Complications of Poststreptococcal Syndrome

PURPOSE

Two cases of poststreptococcal uveitis are presented. One patient developed nongranulomatous anterior uveitis (case 1). A second patient developed nongranulomatous anterior uveitis followed by granulomatous uveitis with concurrent choroiditis, retinal pigment epithelial detachment, and cystoid macular edema (case 2). Current concepts regarding the pathogenesis of poststreptococcal syndrome and its ocular sequelae are also discussed.

CASE REPORTS

Case 1: A 31-year-old female patient presented with bilateral nongranulomatous uveitis after a recent onset of sore throat. A past diagnosis of rheumatic fever was revealed during acquisition of the patient's history. Blood chemistry analysis indicated elevated anti-streptolysin O antibody titers as the only significant elevated result. Case 2: A 33-year-old female presented initially with bilateral nongranulomatous uveitis. A history of recurrent sore throat was reported. Blood chemistry analysis revealed elevated anti-streptolysin O antibody titers only. "Mutton fat" keratic precipitates eventually developed; however, the bilateral uveitis resolved after topical cycloplegic and corticosteroid treatment. An anterior granulomatous uveitis with concurrent choroiditis, retinal pigment epithelial detachment, and cystoid macular edema ensued during a recurrent episode. Blood chemistry analysis was unremarkable at that time.

CONCLUSIONS

: Anterior nongranulomatous/granulomatous and posterior uveitis should be considered clinical manifestations of poststreptococcal syndrome in patients with a clinical history and/or serological evidence indicating possible past streptococcal infection. A variation of host-genetic-predisposed immune response, the patient's human leukocyte antigen haplotype, pathogen virulence, and/or deposition location of immune circulating complexes may give rise to the diverse spectrum of clinical ocular sequelae in poststreptococcal syndrome. Poststreptococcal uveitis may comprise a similar immunologic pathogenesis to that of acute rheumatic fever, acute glomerulonephritis, and other autoimmune diseases.

Detecting pediatric autoimmune neuropsychiatric disorders associated with streptococcus in children with obsessive-compulsive disorder and tics

BACKGROUND

A subgroup of children with obsessive-compulsive and tic disorders are proposed to have an infectious trigger. The purpose of this study was to investigate the relationship between group A streptococcal titers and symptom fluctuations in children with a clinical course resembling that described for pediatric autoimmune neuropsychiatric disorders associated with streptococcus.

METHODS

Twenty-five children with obsessive-compulsive disorder and/or tic disorder were evaluated for neuropsychiatric severity and group A streptococcal antibody titers (streptolysin O, deoxyribonuclease B, and carbohydrate A) at 6-week intervals for > or = six consecutive evaluations (total visits=277).

RESULTS

Children with large symptom fluctuations (n=15) were compared with children without dramatic fluctuations (n=10). Co-movements of obsessive-compulsive/tic severity and group A streptococcal antibodies were assessed. In subjects with large symptom changes, positive correlations were found between streptococcal titers and obsessive-compulsive severity rating changes (p=.0130). These subjects were also more likely to have elevated group A streptococcal titers during the majority of observations (p=.001). Tic symptom exacerbations occurred more often in the fall/winter months than spring/summer months (p=.03).

CONCLUSIONS

Patients with marked obsessive-compulsive/tic symptom changes may be characterized by streptococcal titer elevations and exhibit evidence of seasonal tic exacerbations.

Pustulosis acuta generalisata is a post-streptococcal disease and is distinct from acute generalized exanthematous pustulosis

Generalized pustular eruptions with fever present a diagnostic and therapeutic problem. Based on a case of pustulosis acuta generalisata and a review of the literature, this entity can be regarded as an exclusively post-streptococcal disorder with an elevated antistreptolysin titre. It has a distinct clinical presentation of isolated pustules on normal skin, predominantly in an acral location. We propose criteria for the clear separation of this disease from acute generalized exanthematous pustulosis and from pustular psoriasis.