[Rheumatic fever and post-streptococcal arthritis. Clinical review]. / Fiebre reumática y artritis postestreptocócicas. Revisión clínica.

We report 11 patients diagnosed of Acute Rheumatic Fever (ARF), and 7 of Poststreptococcal Reactive Arthritis (PSRA): patients with group A beta hemolytic streptococcal infection and articular disease who do not fulfill the modified Jones criteria. All patients with ARF were treated with monthly prophylaxis (with penicillin G benzathine). Carditis was seen in five patients, but only one of them has developed a mitral valve insufficiency. The prophylaxis in patients with PSRA was individualized. None of these patients had clinical evidence of carditis during the acute disease, but one of them developed a mitral and aortic stenosis two years after the initial episode. The possible indication of penicillin prophylaxis in these patients with PSRA in suggested.

[Remnants of the embryologic sinus venosus valves. "Cor triatriatum dexter" (author's transl)]. / Persistencia de la válvula derecha del seno venoso "cor triatriatum dexter"

Remnants of the embryologic sinus venosus valves are not uncommon. However, persistent venous valves in the right atrium, which are large enough to obstruct the blood flow through the tricuspid valve (the so called cor triatriatum dexter) are very rare. There are 3 different types according to the location of the right atrial membrane. Right heart chambers hyoplasia is the most common association. Concurrent lesions of lesser degree have also been described. Although isolated cor triatriatum dexter could be symptomatic, both the clinical features and the prognosis usually are the consequence of the associated malformations. A review of the embryological aspects is offered.