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Biomedical subjects

L J Abernethy

Publications and source records attributed to L J Abernethy.

23 records · Page 2Linked to original sources

Ultrasound assessment of the position of the tongue during induction of anaesthesia.

Tongue position was assessed in 15 female patients at induction of anaesthesia with either thiopentone or propofol. A video recording of a midline sagittal section of the tongue was made using an ultrasound transducer placed below the chin, and representative figures analysed by an observer who was not aware of the patient's state. In 11 satisfactory recordings, the tongue movement was inconsistent in direction and not more than 8 mm in the anterior tongue and 6 mm in the posterior tongue. The movements detected did not suggest that the tongue is likely to be an important cause of airway obstruction on induction of anaesthesia.

Adult↗

Fibromuscular dysplasia of the renal artery in a child: detection by Doppler ultrasound and correction by percutaneous transluminal angioplasty.

We describe the case of a fourteen-year old girl with hypertension, in whom renal arterial stenosis was identified by Doppler ultrasound examination, with subsequent demonstration of typical features of fibromuscular dysplasia by selective renal arteriography. Percutaneous transluminal balloon angioplasty was performed, and a sustained improvement in renal arterial flow was confirmed by follow-up Doppler ultrasound examinations.

Adolescent↗

Leptomeningeal cyst of the orbit presenting with pulsatile exophthalmos.

The case of a 64-year-old man who presented with unilateral pulsatile exophthalmos is described. A defect in the supero-medial wall of the orbit and an extraconal low density mass were demonstrated by orbital radiographs and CT. Positive contrast CT cisternography confirmed the diagnosis of a leptomeningeal cyst.

Arachnoid↗

Ultrasound localization of subperiosteal abscesses in children with late-acute osteomyelitis.

Ultrasonography was undertaken in nine children with late presenting acute osteomyelitis, in four children with typical superficial cellulitis, and in four with a soft tissue abscess. Ultrasound distinguished between superficial cellulitis, soft tissue abscess, and subperiosteal abscess. The abscesses were confirmed at operation, and a subperiosteal abscess was also detected in the child with deep periosseous cellulitis. Ultrasonography was particularly useful in confirming the existence of a subperiosteal abscess and in localizing it precisely in children with diffuse swelling and tenderness of a limb owing to late-acute osteomyelitis. Surgical drainage of pus can be avoided in patients without ultrasound features of an abscess and can be better planned in those who require it.

Abscess↗

Modern approach to the diagnosis of osteomyelitis in children.

Osteomyelitis in childhood is common and causes serious morbidity. X-rays and bone scans are the primary tools of radiological investigation. Other imaging techniques, including ultrasound, computed tomography, magnetic resonance imaging and white cell scintigraphy have a valuable role in difficult cases.

Child↗