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Biomedical subjects

H Dudley

Publications and source records attributed to H Dudley.

12 recordsLinked to original sources

The mechanism of calf claudication: studies of simultaneous clearance of 99Tcm from the calf and thigh.

Simultaneous clearance of 99Tcm from the gastrocnemius and quadriceps muscles has been studied in 74 limbs of 62 patients with claudication and in 20 normal limbs of 15 volunteers. The local decay curve for 10 min at rest and for 20 min after a 3-min treadmill walk at 4.5 km/h was recorded. The changes in blood flow which occurred after exercise were characteristic of the arteriographic lesions and they explain the haemodynamics of claudication.

Humans

Perceived noise in surgical wards and an intensive care area: an objective analysis.

An investigation of noise levels in a hospital ward, a cubicle off the ward, and an intensive therapy unit (ITU) showed that the noise levels in all three areas were higher than internationally recommended levels at all times of day. Loud noises above 70 dB(A) were common in all areas but especially the ITU. The noise pollution levels reached annoying values during the day in the ward and cubicle and during both the day and the night in the ITU. Equipment and conversations among the staff were the main causes of noise in the ITU. These noisy environments are unlikely to help patients recover. Although measures designed to eliminate noisy surfaces will help, making staff aware of the noise they create and the effects it has may be much more effective in reducing noise pollution.

Equipment and Supplies, Hospital