Gustavo Ríos

Bio: Gustavo Ríos is an academic researcher from Valparaiso University. The author has contributed to research in topics: Coronary artery disease & Angina. The author has an hindex of 1, co-authored 2 publications receiving 2 citations.

Enfermedad coronaria aneurismática severa en un adolescente con angina de esfuerzo secundaria a enfermedad de Kawasaki no diagnosticada previamente

Abstract: We report a 16 year old male with a history of angina on exertion.A treadmill exercise test was positive for ischemia in concordance with a Thallium-201scintigraphy showing a septal and infero-posterior reversible myocardial perfusion defect.Coronary angiography disclosed severe aneurysmal coronary artery disease. Bilateral internalmammary coronary artery bypass grafting was successfully performed. Kawasaki disease is themost likely etiology, although not confirmed (Rev Med Chile 2007; 135: 1182-85).(

Síndrome de Sengers: comunicación de dos casos en Chile

Abstract: Resumen: El Sindrome de Sengers es una en-fermedad mitocondrial autosomica recesiva, produ-cida por mutacion del gen de la Acil-Glicerol Kinasa (AGK), recientemente descubierto. Se caracteriza por cataratas congenitas bilaterales, miocardiopatia hipertrofica y acidosis lactica. Puede tener miopatia esqueletica leve, intolerancia al ejercicio y desarro-llo mental normal. Los pacientes fallecen temprana-mente debido a falla cardiaca.Dada la alta letalidad, lo infrecuente de este sindrome y la presencia de un diagnostico confirmado, se presenta el caso clinico de 2 hermanos chilenos, fallecidos por la enfermedad, que se presentaron con el cuadro caracte-ristico de cataratas congenitas bilaterales, miocardiopa-tia hipertrofica y acidosis lactica. El mayor, se opero las cataratas a los 4 meses de edad y fallecio a la edad de 13 meses debido a falla cardiaca severa refractaria y falla organica multiple, descompensado por una infeccion respiratoria. El menor se diagnostico a los 3 meses de edad y se le confirmo la mutacion del gen de AGK en Alemania. Se decidio no operarlo de las cataratas dado el mal pronostico vital. Presento progresion de la mio-cardiopatia hipertrofica y fallecio subitamente a los 8 meses de edad.

Application of Percutaneous Transluminal Coronary Angioplasty to Coronary Arterial Stenosis in Kawasaki Disease

Abstract: Background Percutaneous transluminal coronary angioplasty (PTCA) has rarely been performed on patients with coronary lesions that result from Kawasaki disease. In this study, we retrospectively evaluated the effectiveness of PTCA in five patients with coronary arterial stenosis that resulted from Kawasaki disease and reviewed previous reports for possible indicators of PTCA effectiveness. Methods and Results Five patients, ranging in age from 2 to 16 years (median, 8 years), underwent conventional PTCA for localized stenosis. The lesion targeted for PTCA was located in the middle right coronary artery of three patients and in the left anterior descending artery in two patients. In four of the five patients, PTCA was angiographically effective, with stenosis rates improving from 84±10% to 33±11% (P<.05). When the previously reported cases of six similar patients were taken into consideration, the only predictor of successful PTCA seemed to be the time elapsed between the onset of Kawasaki disease and perfo...