Prevalencia de síncope en una muestra de mujeres mexicanas residentes de la ciudad de México / Prevalence of syncope in a sample of Mexican women residents in Mexico City

OBJECTIVE: To identify the frequency of syncope in a sample of women regular residents of Mexico City. METHODS: Two hundred and twenty one women between 18 and 88 years old with voluntary participation were included in the study. Trained interviewers through a structured questionnaire obtained syncope information. Prevalence of syncope was obtained, and it's relation with: age, time since the last syncope and frequency of syncope in their live span was registered. RESULTS: Thirty eight percent informed they had suffered syncope, of them 50% had only one syncopal episode during their lives. The others had two or more episodes. Most women had their last syncope between 19 and 50 years of age. CONCLUSIONS: The frequency of syncope was a little higher than previous studies. This is a first approximation, which must be corroborated with larger studies with well population variability representation.

Efectos del desplazamiento vertical de músculos horizontales y el debilitamiento de oblicuos superiores sobre la anisotropia en A / Effects of vertical displacement of the horizontal muscles and superior obliques weakening over A pattern

Revisadas 36 historias clínicas de pacientes operados de anisotropias en A, 19 casos sometidos a desplazamiento de R.Hs. y 17 a debilitamiento de O.Ss., se observó tendencia a mayor corrección de la A con este último procedimiento. En los casos sometidos a debilitamiento exclusivo de O.Ss., se produjo modificación del ángulo en PPM e infraversión que debe tenerse en cuenta para el plan quirúrgico