Search PubMed⌕ Search

Biomedical subjects

W H Ng

Publications and source records attributed to W H Ng.

28 records · Page 2Linked to original sources
PubMed1980

Myocardial infarction with angiographically normal coronary arteries.

Acute myocardial infarction without obstruction of the coronary arteries is uncommon. The clinical course of a 32 year old patient with documented acute inferior and anterior wall infarctions is described. Selective coronary arteriography performed 23 months later revealed no obstruction of the coronary arteries angiographically. Probable pathologic mechanism are discussed.

Adult↗
PubMed1978

Post-partum cardiomyopathy.

A report is presented of a patient who developed signs of cardiac failure 6 weeks after the birth of her fourth child. Detailed cardiac investigation indicated the diagnosis to be post-partum cardiomyopathy, a condition more commonly encountered in Negro women and comparatively rare in this country. The aetiology and mode of presentation are discussed.

Adult↗
PubMedDate not supplied

Simple, at-site detection of diethylene glycol/ethylene glycol contamination of glycerin and glycerin-based raw materials by thin-layer chromatography.

This paper describes a rapid, inexpensive thin-layer chromatographic (TLC) method that separates diethylene glycol (DEG) from glycerin and other glycols. Studies with collaborating laboratories of the World Health Organization have shown that about 6% DEG in glycerin and about 2% DEG in acetaminophen (paracetamol) elixirs may be detected by direct visual inspection of the developed TLC sheets. Staining the sheet permits detection of DEG at less than 0.1%. The method costs less than $1.00 per test and takes 20 min by visual inspection, longer when staining is required. The visual method can be performed without laboratory facilities by personnel having little previous training. Samples testing positive by the visual method can be submitted to a laboratory for confirmation and quantitation of DEG.

Acetaminophen↗