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Biomedical subjects

D G Harendra de Silva

Publications and source records attributed to D G Harendra de Silva.

17 recordsLinked to original sources

Neonatal and post-neonatal mortality in the Galle district.

OBJECTIVE: To determine some factors associated with infant mortality. DESIGN: Descriptive study. SETTING: Galle district in Sri Lanka. SUBJECTS: 350 infant deaths of singleton births. MEASUREMENTS: Association between variables. RESULTS: Neonatal:post-neonatal death ratio was 3.2:1, and 62.3% (218) were early neonatal deaths. First day deaths comprised 28.6% (100); 67.8% (237) died at the Teaching Hospital. A high incidence (65.7%) of low birthweight (LBW) was noted. Mean birthweights of neonates and post-neonates were 1925 +/- 729 and 2520 +/- 620 gram respectively, and the difference between means was statistically significant (p < 0.001). LBW and related disorders were the major cause of death in 44% (154) of the total sample, and in 55.8% (149) of neonates. Infections were the commonest cause (55.8%) of death in post-neonates. Pediatric clinical assessment to differentiate small-for-dates (SFD) was not recorded in 90.3%. Statistically significant associations were found between the period of death (neonatal and post-neonatal) and the following variables: period of gestation (p < 0.001); birthweight (p < 0.001) and cause of death (p < 0.001). CONCLUSIONS: There was a high incidence of neonatal deaths and a high proportion of early neonatal deaths. About one-third of deaths occurred on the first day of life. Incidence of LBW was high. The major cause of death was LBW and related disorders in the total sample and in neonates. Assessment of SFD was not carried out in the vast majority of infants.

Cause of Death↗

Norrie's disease in an Asian family.

Norrie's disease, a congenital progressive oculo-acoustico-cerebral degenerative condition, is a sex linked recessive disorder. Previously described as atrophia oculi congeneti, it is associated with bilateral pseudotumour of the retina, lens, and corneal opacities, and phthisis bulbi. Some patients develop progressive deterioration of mental function and hearing. We report a Sri Lankan family with typical features of Norrie's disease.

Adult↗

Bacterial contamination of the small intestine of infants with enteropathogenic Escherichia coli and other enteric infections: a factor in the aetiology of persistent diarrhoea?

The duodenal microflora was studied during the first week of diarrhoea in 40 infants with acute infectious diarrhoea of different aetiologies and compared with that in a convalescent group and a group in whom diarrhoea of known aetiology had persisted for more than 14 days after an acute onset. In the acute phase 16 of the 40 infants had more than 10(4) colony forming bacteria/ml, predominantly upper respiratory commensals. In over half of the infants infected with enteropathogenic Escherichia coli a faecal type flora was found in the duodenum. This flora included the enteropathogenic E coli serotype isolated from the stool in three quarters of cases. Infants with persisting diarrhoea had significantly more faecal type bacteria in the duodenum than either those with acute diarrhoea or the convalescent group. In addition, there was a significant further increase in Enterobacteriaceae in infants whose persistent diarrhoea occurred after infection with enteropathogenic E coli. Infections with enteropathogenic E coli may have a predilection for disturbing the duodenal microflora, which may contribute to the development of persistent diarrhoea.

Adenoviridae↗