Biomedical subjects

H Halford

Publications and source records attributed to H Halford.

3 recordsLinked to original sources

PubMed2000

Selective paraspinal muscle amyotrophy.

A 56-year-old female presented with mild low back pain. Examination revealed severe, selective atrophy of the thoracic and lumbar paraspinal muscles. Fibrillations were seen in the paraspinal muscles on EMG. Limb EMG was normal. Biopsy of the gluteus maximus was normal. Paraspinal muscle biopsy revealed neurogenic features. Atrophy of the thoracic and lumbar paraspinal muscles was noted on magnetic resonance imaging. This patient has selective amyotrophy of the thoracic and lumbar paraspinal muscles. This may be an addition to the spectrum of 'benign focal amyotrophy'. The differential diagnosis of paraspinal muscle weakness is discussed.

Biopsy↗

PubMed1999

Bilateral ophthalmoplegia and exophthalmos complicating central hemodialysis catheter placement.

We describe a 58-year-old woman who presented with bilateral ophthalmoplegia, exophthalmos, and headache and was found to have retrograde internal jugular vein flow secondary to a high-grade obstruction of the ipsilateral brachiocephalic vein from a previous hemodialysis catheter placement. The patient had also a high-flow dialysis graft in the ipsilateral arm. The cranial and extracranial venous system congestion resolved, and the signs disappeared soon after a balloon angioplasty and stent placement at the level of the obstruction.

Angioplasty, Balloon↗

PubMed1995

Contrast-enhanced magnetic resonance imaging of the lumbosacral roots in the dysimmune inflammatory polyneuropathies.

The diagnosis of acute Guillain-Barré syndrome and chronic inflammatory demyelinating polyradiculoneuropathy is based on clinical characteristics, abnormalities on nerve conduction studies, and nerve biopsy specimens indicating demyelination. Inflammation and edema are also common findings in nerve specimens. Immunotherapy is helpful in these dysimmune conditions. Occasionally the diagnosis is difficult to make, particularly when electrophysiological testing or nerve biopsy findings are not characteristic. The authors found contrast enhancement of lumbosacral roots in patients with chronic inflammatory demyelinating polyradiculoneuropathy and Guillain-Barré syndrome, but not in those with other demyelinating neuropathies. Contrast-enhanced magnetic resonance imaging could be a useful tool in the diagnosis of the dysimmune inflammatory neuropathies.

Adult↗