Procedural safeguards for euthanasia.
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Attitude of Health Personnel↗
Biomedical subjects
M S Harrison
Publications and source records attributed to M S Harrison.
The facial tics.
The abnormal movements of the facial muscles are classified and the diagnosis and treatment considered in light of 22 cases of hemifacial spasm. Forms of treatment which give only temporary cessation of spasm and require complex and unpleasant treatment to be oft repeated are seldom tolerated for long by the patient. Permanent cure of spasm can only be obtained when the facial nerve or its branch to the muscle is permanently divided or the muscle itself excised. Neurotomy as practised by German (1942) and Scoville (1955) has not been found satisfactory in the present series. Neuro-anastomosis at different sites in the course of the 7th nerve is discussed and shown to be of value in patients with severe widespread spasm and in those in which the spasm is more localised. This method results in only temporary palsy of the facial muscles, the duration of the palsy depending on the site of the division of the facial nerve.
Blepharospasm↗
Positional vertigo.
Different forms of positional nystagmus, particularly the continuous (type I) variety, were found in 86 consecutive patients admitted to general and neurological hospitals. This series is compared with 365 patients with paroxysmal (type II) and 23 patients with type III positional nystagmus. In this series of 32 of the patients with continuous type I positional nystagmus (including 15 patients with head injury) and 18 of the patients with paroxysmal type II nystagmus were found to have central lesions.
Adult↗
A comparison of methods of extra temporal facial nerve repair.
The development during the past 100 years of methods of repair of the divided facial nerve is discussed, from the early attempts to bring the nerve ends together inside a tube of vein. The success of the repair is enhanced by the care of the blood supply to the nerve and by measures to avoid scar developing between the ends of the nerve. Rest of the suture line is aided by the support of some form of tube, but unless this latter is kept below I cm. in length interference with the radial blood vessels to the nerve occurs. Intubation also encourages parallel growth of the nerve fibres and discourages fibroblast proliferation. Animal experimentation shows that the results when a soft silicone tube of special shape is used are superior to those obtained if the nerve is left free in the tissues, buried in muscle, or placed inside a vein.
Animals↗