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Biomedical subjects

A Indrayan

Publications and source records attributed to A Indrayan.

12 recordsLinked to original sources

Can pulse oximetry be used to measure systolic blood pressure?

This study evaluates the use of pulse oximetry to accurately monitor systolic arterial blood pressure in 100 healthy volunteers. Determination of arterial blood pressure using oximetry was made at the disappearance of visual display upon blood pressure cuff inflation, at the reappearance of visual display upon cuff deflation, and by averaging the two. The blood pressures obtained by pulse oximetry were compared with the arterial blood pressures obtained by Korotokoff sounds and noninvasive blood pressure equipment. Good agreement was obtained when the average of oximetry-based systolic blood pressure estimates at the disappearance and reappearance of the waveform were compared with Korotokoff sound pressures and noninvasive equipment pressures. Thus pulse oximetry can be used to measure systolic arterial blood pressure. This technique is specifically important for patients with Takayasu's syndrome (pulseless disease) where conventional techniques often fail to monitor systolic arterial blood pressure.

Adult

Development of an index of need for health resources for Indian States using factor analysis.

An index of need for health resources in the Indian States has been developed using the statistical technique of factor analysis. Data on seven selected indicators measuring various aspects of population health in 17 Indian States for the year 1981 were used to extract factors. Two factors were discovered which together explained 83% of the total variation. The first factor alone, identified as 'proximate determinants', explained 67% of the variation. The second, 'sociomedical background' accounted for 16%. Factor analysis results have been used to derive standardized indices which helped to compare quantitatively the health needs of the people of various States.

Data Collection

Computer based application software for histopathological reporting system.

For better follow up of patient and the immediate retrieval of records, we have developed a computer based application software for histopathological reporting system (HIPRIS). With its help, among others, we can (i) retrieve the biopsy report of a patient from the accession number of the specimen; (ii) find out the number of cases for a particular period as well as can analyse cases by any relevant referral parameter like department, specialty and disease and (iii) find out the time gap between receiving the specimen and reporting of result. Our experience suggests that this system greatly improves the efficiency of the histopathological laboratory.

Biopsy

Childbirth spacing in a rural community of Delhi: profile in various marriage cohorts by decades.

Complete retrospective fertility histories of 843 ever married women of two villages in Delhi, obtained through house to house survey, were analysed to study various marriage cohorts by decades for trends of child birth spacing over a period of 60 years from 1921 to 1980. Spacing between consummation of marriage and first child birth gradually declined over the last 6 decades. For all other subsequent livebirths remained constant at an average of nearly 30 months. Irrespective of the reasons for such a trend, much more efforts are required to be put in to increase child spacing.

Adolescent

Effect of garlic on normal blood cholesterol level.

The effect of raw garlic on normal blood cholesterol level in males of the age group of 18-35 years was studied. The subjects, who never ingested garlic before, were given 10 g of garlic daily with their diet for two months. Fasting blood samples were investigated in respect of cholesterol before and after two months of garlic intake. Initially the blood cholesterol level ranged between 160-250 mg% which decreased significantly in all the subjects of experimental group after two months of ingestion of garlic. The slight decrease or increase in the blood cholesterol level of control group was not significant. The raw garlic can be advocated for daily ingestion in order to lower one's blood cholesterol level even if it is within normal limits.

Adolescent

A study of urinary creatinine and creatinine coefficient in healthy young adults.

Daily urinary creatinine excretion and creatinine coefficient of eighty-four healthy medical students have been studied for three consecutive days. Daily creatinine excretion has been observed to be higher in the male subjects compared to the female counterparts. Creatinine excretion has been observed to be dependent on body weight of the subjects. The variability from subject to subject was higher than observed by most other workers. Day to day consistency within the same subject was rather low. Creatinine coefficient was computed per kg of body weight as well as per kg of lean body weight. In both the cases, it has been found to be higher in the males than in the females. Though an important factor, yet body weight of a subject alone could not explain satisfactorily wide variability of creatinine excretion in the present study. The possible influencing factors have been discussed along with clinical implications.

Adolescent