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Biomedical subjects

B McDonald

Publications and source records attributed to B McDonald.

112 records · Page 7Linked to original sources

Hypokalemia complicating Duchenne muscular dystrophy.

Although patients with Duchenne muscular dystrophy (DMD) have been shown to have decreased total body potassium levels, serum potassium levels have generally been though to be within normal limits. We report two siblings with DMD noted to be hypokalemic in conjunction with a respiratory illness. Hypokalemia may have exacerbated the pre-existing pulmonary insufficiency in these patients. The literature concerning hypokalemia and DMD is reviewed, and recommendations for the closer monitoring of serum potassium levels in patients with DMD are presented.

Child↗

Betel nut and smoking. Are they both protective in ulcerative colitis? A pilot study.

Two-hundred and twenty-three Asian patients with inflammatory bowel disease were sent a questionnaire about smoking and betel nut chewing habits. The 116 responses from patients with ulcerative colitis were compared with answers from 79 healthy members of the community. Twelve per cent of male patients were currently smokers compared with 31% of healthy controls (chi 2 = 20.9 P < 0.05). No such differences existed between female patients and controls. Thirteen per cent of male patients regularly used betel nut compared with 20% (chi 2 = 3.9 P < 0.05). Both smoking and betel nut chewing appear to reduce the risk of developing ulcerative colitis, although these effects may be linked.

Adult↗