[Clinical utility of HIV viral load assessment in cerebral spinal fluid, a case report].

Detection of virus in cerebrospinal fluid (CSF) in HIV-infected patients with HIV viral load (VL) undetectable in plasma has been termed viral escape. These leaks may be asymptomatic from a neurological point of view, similar to plasma blips, or associated with neurological disease, with discordant VL between plasma and CSF, and may be evidence of a compartmentalization of the virus and the possibility of identifying quasispecies with mutations that confer resistance to ART. We present the case of a man with AIDS and disseminated tuberculosis who presented neurological symptomatology evidenced by headache and convulsive syndrome, who presented a discordance between plasma and CSF HIV VL; the genotypic test of the virus, obtained by lumbar puncture, identified new mutations that determined a change in ART with subsequent satisfactory evolution.

[Fetal echocardiography. III. The antenatal diagnosis of structural and rhythm changes].

We present 119 echocardiographies in 90 high-risk pregnancies, 20 to 40 weeks gestational age. There were found 18 fetuses with abnormal examinations (20%), six of them with structural alteration (6.6%), and 14 arrhythmias (15.

[Fetal echocardiography. II. Biometry of the normal fetal heart].

Normal fetal hearth biometry is analyzed by echocardiography in 80 pregnant women with 20 and 40 gestational weeks. Intraventricular septum, aorta, left and right ventricular dimensions were obtained. All dimensions showing progression with gestational age.

[Fetal echocardiography. I. The technic and fundamentals].

This study describes the method and principles of fetal echocardiography, analyzing the technics and the utility of bidimensional mode, M mode and Doppler ultrasound on congenital fetal cardiopathies. The importance of early diagnosis in the structural alterations and fetal cardiac arrhythmias is emphasized.

[Myocardial contraction and ventricular function in normal subjects evaluated with isotopic ventriculography and phase analysis].

Normal heart contraction was studied in 20 healthy subjects (14 males and 6 female, mean age 33 years). Rest radioventriculography and phase analysis were used. Ejection fraction was 66 +/- 7% for the LV and 53 +/- 7% for the RV (p < 0.