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Biomedical subjects

R A Hirasing

Publications and source records attributed to R A Hirasing.

84 records · Page 5Linked to original sources
PubMed1991

[Blood pressure measurement in children; strongly varying in quality and interpretation].

An inquiry was held among a randomly selected group of 100 school doctors in order to gain an impression of the blood pressure measuring and of the criteria for the diagnosis of hypertension in the practice of child health care. The response was 62%. The results show that there are great differences in measuring methods and in the interpretation of the blood pressure readings. Because the responders may form a group of school doctors with a special interest in hypertension, the results deserve attention. The relatively high prevalence of hypertension (0.5-3%) in the young justifies regular measurements of the blood pressure. More than the general practitioner and the paediatrician, the school doctor can contribute to the prevention and early detection of hypertension. The quality of the measurement and the interpretation of the recordings are important in view of the consequences of hypertension.

Adolescent↗
PubMed1990

[Case finding of amblyopia in young children using the TNO-depth-vision-test].

To evaluate the policy in amblyopia detection by pre-school health care workers we studied the prevalence of amblyopia that had not previously been detected among 1975 children at the ages of 4 years 6 months to 5 years 10 months. Seventy-eight (3.9%) of the children had insufficient stereo-acuity, though no form of ocular abnormality had been noted in the past. Twenty-one (1%) of the children had a previously undetected amblyopia. After 1 1/2 years 74% of the children with amblyopia had a visual acuity of 0.9 or more, while most of the children--at the time of referral--were 4 1/2 years or older. Amblyopia can be identified earlier by (a) a proper transfer of information from pre-school health care workers to the school doctor; (b) taking into consideration low vision if assessment of vision was not successful in the first examination, and (c) performing at least the TNO-stereotest when in doubt.

Amblyopia↗
PubMed1989

[Significance of the registration of testis localization in child health services for the avoidance of unnecessary orchiopexies].

The health records of 1816 11-year-old Dutch schoolboys were examined to assess the importance of these records for boys with an apparently non-scrotal testicle. Full records from birth onward existed for 58% of the boys; at least 4 examinations were recorded in 76% and no prior examinations in less than 4% of the boys. Orchidopexy had been performed in 2.9% of the boys; the records of 33 of the 53 boys with a history of orchidopexy showed intrascrotal position of both testicles at least once. The conclusion is that the Dutch youth health system possesses relevant records which should be consulted by practising physicians and surgeons before orchidopexy is considered.

Child↗
PubMed1984

Can perinatal asphyxia cause cerebral edema and affect cerebral blood flow velocity?

Cerebral blood flow velocity (C.B.F.V.) was estimated in 49 newborn babies by calculating the pulsatility-index (P.I.) of the anterior cerebral arteries (A.C.A.) using Doppler ultrasound. We studied the changes in P.I. of the A.C.A. in relation to the clinical condition in three full-term babies with evidence of cerebral edema (in one patient proved by autopsy) due to perinatal asphyxia. There was a relation between the level of consciousness and the P.I.; a low P.I. (a sign of arterial vasodilatation) occurred with a low level of consciousness, while higher P.I. values (reduced vasodilatation) were detected when improvement of consciousness occurred. The following explanation is given: cerebral edema causes an increase of intracranial pressure and venous obstruction. The cerebral perfusion decreases and cerebral function changes; stupor and coma occur. By vasodilatation the resistance of the cerebral arteries is lowered; the C.B.F.V. increases in an attempt to restore cerebral perfusion. The vasodilation is reflected in the low P.I. values, as we found in our three patients.

Adult↗
PubMed1982

Tuberculous pericarditis developing during chemotherapy.

A 6-year-old boy with active tuberculosis developed a pericarditis 9 weeks after starting adequate chemotherapy. Although no Mycobacterium tuberculosis was isolated from the pericardial fluid we assume, for several reasons, that the pericarditis was caused by tuberculosis. Consequently, it is important to be aware of possible serious complications even during treatment with adequate antituberculous drugs.

Child↗