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Biomedical subjects

J Ramirez

Publications and source records attributed to J Ramirez.

At least 55 records · Page 3Linked to original sources
PubMed1978

Echocardiographic diagnosis of ruptured aortic valve leaflet in bacterial endocarditis.

Aortic valve rupture, secondary to aortic valve endocarditis, was diagnosed echocardiographically and closely followed preoperatively. The ruptured left coronary cusp of the aortic valve was seen as dense irregular echoes, located anteriorly during ventricular diastole, and protruding into the left ventricular outflow tract in an otherwise normally appearing aortic valve. These echocardiographic findings, when correlated with changes in the clinical status of the patient, prompted immediate cardiac catheterization and aortic valve replacement. Early echocardiographic detection of abnormal aortic cusps and variation from normal aortic root echo features should alert the physician to proceed to cardiac catheterization, and aortic valve replacement if necessary.

Adult↗
PubMed1978

Determination of fetal maturity from the measurement of the sedimentary fraction of the amniotic fluid (amniocrit).

A simple technique is described for evaluating foetal maturity. This consists in measuring the sedimentary fraction of the amniotic fluid (amniocrit). The amount of sediment, expressed in percent of the total liquid volume varies between 0.33% at 36 weeks of amenorrhea and about 2.22% at 40 weeks. These values are correspond to arithmetical means. The differences between pre-term and term pregnancy are highly significant (p less than 0.001). The mean at 32--36 weeks of amenorrhea is 0.27, and at 37--41 weeks is 1.45. A close correlation between gestational age and the fraction of sediment in amniotic fluid is shown in Fig. 1. The correlation coefficient was 0.726. This technique of measuring the sediment combines simplicity and reliability and can be employed where minimal resources are available, and in rural hospitals. The feasibility of using this procedure in institutions with limited resources is emphasized.

Amniotic Fluid↗
PubMed1976

Indoramin in the treatment of hypertension: a placebo controlled trial.

The effect of the alpha-blocker indoramin was studied in a 4-week double-blind comparative trial with placebo in 39 patients with mild to moderate essential hypertension. Dosage of indoramin was individually adjusted and ranged from 125 mg to 200 mg daily. Indoramin produced a significantly greater reduction in diastolic blood pressure than placebo, and 9 (56%) out of 16 patients attained diastolic pressures of 90 mmHg or less. Heart rate, haematology and blood biochemistry were unaffected by treatment with indoramin, and there were no E.C.G. changes. Nine out of 19 patients on indoramin complained of side-effects. These were generally not troublesome, although 3 patients withdrew because of severe tiredness or weight gain.

Ambulatory Care↗