Pupil motion analysis and tracking in ophthalmic systems equipped with wavefront sensing technology.

Our eyes are constantly in motion, even during "steady" fixation. In ophthalmic systems equipped with wavefront technology, both eye and head motion potentially degrade its performance and/or increase the cost and complexity, as they induce a movement of the entrance optical pupil of the system. Here, we characterize the pupil motion in an aberrometry setting, using a custom, high-speed pupil tracker (478 Hz), and draw conclusions on design considerations of future ophthalmic systems.

Obstacles and challenges following the partial decriminalisation of abortion in Colombia.

During a highly contested process, abortion was partially decriminalised in Colombia in 2006 by the Constitutional Court: when the pregnancy threatens a woman's life or health, in cases of severe fetal malformations incompatible with life, and in cases of rape, incest or unwanted insemination. However, Colombian women still face obstacles to accessing abortion services. This is illustrated by 36 cases of women who in 2006-08 were denied the right to a lawful termination of pregnancy, or had unjustified obstacles put in their path which delayed the termination, which are analysed in this article.

[Use of oral anticoagulants in patients discharged with atrial fibrillation in 2000].

Introduction And Objectives: Although there is consensus about the use of oral anticoagulants to prevent thrombi and embolisms in most patients with atrial fibrillation, this treatment is underused in actual practice. Our objective was to determine and analyze the use of acenocoumarol in patients diagnosed as having atrial fibrillation at discharge.

Patients And Method: Between January and July 2000, we retrospectively studied 501 consecutive patients with a diagnosis of atrial fibrillation.

[Identification of factors responsible for oral over-anticoagulation in outpatients with heart disease].

Background: Few studies have attempted to investigate the clinical course or identify factors responsible for excessive anticoagulation in patients with heart disease.

Objectives: To determine the incidence of excessive anticoagulation in outpatients with heart disease treated with acenocoumarol, analyze the factors related with over-anticoagulation, and identify bleeding complications.

Patients And Method: This 7-month prospective observational study included consecutive outpatients anticoagulated with acenocoumarol.

[Cardiac index, oxygen and serum lactate consumption in infants with hypovolemic and septic shock].

Determination was made of cardiac output (using the stain dilution technique), gases in blood and serum lactate levels in eight infants with hypovolemic shock and sixteen with septic shock. The data were carried to indexes (values per square meter of body surface). In children with hypovolemic shock the cardiac index was 1.