Implementación de una unidad de artritis reumatoide temprana en pacientes chilenos derivados desde centros de atención primaria de salud / Implementation of an early rheumatoid athritis unit for the early recognition and treatment of the disease

Background: Early recognition of rheumatoid arthritis (RA) provides clinical benefits in terms of remission induction, reduced disease progression, and eventually treatment free remission. Aim: To describe the setting of a Unit devoted exclusively to the recognition and treatment of early RA in patients referred from primary healthcare centers (PHC) in Chile. Materials and Methods: Patients were referred from nine participating PHC from 2014 through 2016. PHC physicians received a formal training to enhance criteria recognition and program adherence. Mandatory referral criteria were an age above 17 years, and arthralgia of less than 1-year duration, plus at least one of the following: morning stiffness of more than 30 minutes, swelling involving more than 3 joints for more than 1 month, a positive squeeze test or abnormal inflammatory serum markers. Results: One hundred twenty patients aged 45 ± 12 years (90% women) were assessed at the early rheumatoid arthritis unit. Median time to referral from PHC to the Unit was 14.6 days. The median duration of symptoms for the overall sample of patients was 10.8 months. RA was identified in 43 patients (36%), with a delay between onset of symptoms and diagnosis of 8.3 months. Regarding the performance of referral criteria, the most sensitive was morning stiffness (80%, sensitivity 95% confidence intervals (CI) 64-89%) and synovitis was the most specific (specificity 83%, 95% CI 72-90%). The positive predictive value of the three clinical criteria altogether was 68.1% (95% CI 47-83%). Conclusions: Institution of an early RA unit was feasible within the Chilean healthcare system enabling the identification of early RA in one-third of patients.

Hantavirus y embarazo: aspectos hemodinámicos y respiratorios / Hanta virus and pregnancy: hemodynamic and respiratory aspects

The disease by Hanta virus has a recent diagnose in our country. 218 cases have been reported to date and given its high mortality of 44 percent, a great epidemiological campaign has been implemented, for its isolation and control. The most severe form of this disease, Hanta virus, is the cardio pulmonary syndrome which present characterics that difference it from other similar disorders. The more frequent hemodynamics patrons to find are low cardiac indexes (CI) with pulmonary vascular resistences and elevated (RVS) systemic. On the other hand, the respiratory disorders correspond to a pulmonary edema non cardiogenic, similar to acute respiratory distress syndrome (SDRA). There are few reports of Hanta in pregnant patients described in literature and case present a high rate of fetal and maternal mortality and there is not a clear description of the hemodynamic compromise, or certitude if there is vertical transmission of the virus from the infected mother to the fetus. We described the clinical case of a 12 weeks pregnant patient with cardio pulmonary syndrome due to Hanta virus (SCPH) which shws a different hemodynamics patron than which has been published and who survives both she as well as her child and do not present virus transmission to the fetus

Golpe de calor provocado durante el tratamiento con atropina en un paciente con intoxicación por organofosforado / Heat stroke due to atropine treatment in a patient poisoned with organophosphate

El golpe de calor es una entidad clínica que se clasifica dentro de los síndromes hipertérmicos. La hipertermia es el aumento de la temperatura corporal secundaria a un incremento en la producción de calor o a una disminución en su disipación. Presentamos el caso de un hombre joven intoxicado con insecticida organofosforado, que estando en tratamiento con atropina hace hipertermia severa con compromiso de conciencia y disfunción multiorgánica