Scottish Daily Mail

How Botox jabs can even help stroke victims

- DR MARTIN SCURR

QFOR several years I’ve had too much saliva, causing drooling. This is embarrassi­ng but my GP says nothing can be done. Name and address supplied.

AThis must be hard for you but please be reassured there are possible treatments available.

Excessive production of saliva, also known as hypersaliv­ation (or in medicine, ‘ sialorrhea’) typically causes drooling, as you have experience­d. it is usually the result of poor co-ordination of the many muscles involved in swallowing — and in many cases there is also an increase in saliva production.

it can be a side-effect of medication­s, including clozapine, a tranquilli­ser. But the most common cause i s nerve malfunctio­n or damage affecting the muscles involved in swallowing, for instance as a result of a disorder that’s affected brain function, such as a stroke.

Possible treatments include anticholin­ergic drugs however, this group of drugs can be poorly tolerated by older people as they can cause sideeffect­s such as confusion.

Another option is an injection of botulinum toxin (or Botox) into the main salivary glands. some patients may experience di f f i c ul t y in swallowing f ollowing the injections, but that resolves after a few weeks.

i suggest speaking to your GP about being referred to a skill ed neurologis­t or a maxillofac­ial specialist to carry out this procedure.

QI HAD a vitrectomy with gas bubble in January to fix a macular hole in my eye, but it didn’t work. My consultant is now recommendi­ng a repeat operation using a heavy oil tamponade instead. How successful is it?

John Evans, Forest of Dean, Glos.

ATHE operation you had is used to treat retinal detachment, which can lead to a macular hole. When the retina, the photosensi­tive layer at the back of the eye, becomes detached, you need immediate surgery to repair it. A vitrectomy is the first stage — removing the vitreous gel, the thick fluid that fills the part of the eye behind the lens and maintains the eye’s shape.

The retina is reattached to the wall of the eyeball with cryotherap­y, where a very cold probe triggers inflammati­on that ensures the retina stays attached (the vitreous gel itself reforms over time).

‘Tamponade’ refers to the technique where a tiny gas bubble is left to press the retina in place while the inflammato­ry process occurs. slowly gas is absorbed and replaced naturally by the watery fluid found in the eye.

if the reattachme­nt hasn’t worked, one option is a repeat procedure using heavy silicone oil for tamponade.

This has to be removed while the gas bubble does not.

But it can potentiall­y damage the optic nerve and trigger inflammati­on that damages the retina.

however, in a study of 115 cases, the retina completely re-attached in nearly 83 per cent of patients using an oil tamponade. in just over 17 per cent, the retina detached again. The figures say it all, and i hope — after further consultati­on — you go ahead with it and restore your vision.

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