Movement Disorders for GP Registrars

Movement Disorders for GP

Belinda Kessel

Geriatrician and General Physician with a Specialist Interest in

Movement Disorders

8 th July 2010

Case history

67 year old left handed gentleman with a right sided tremor

Tremor present for 10 months and occurs at rest and posture (driving, holding golf club)

Wife noticed decreased arm movements when walking but gait not shufffly

No changes in speech, swallow or memory but long standing constipation

Examination

Reduction in facial expression

Resting tremor on right

Mild increase in tone with cogwheeling on right

Mild bradykinesia with decrease arm swing on right.

Diagnosis and management

 Idiopathic right sided tremulous Parkinson’s disease

Started on a dopamine agonist and titrated

Information given on PD and drug side-effects

Told to inform DVLA

Follow up 2/12 with PD nurse specialist

Further referrals to physiotherapy, OT and SALT as required including invite to new PD patient information course

Movement Disorders…

Shakes/tremors

Abnormal movements such as tics, chorea, dystonias

Bradykinesia (slow movement)

Not falls alone- refer Falls Clinic

Paradoxically if known movement disorder no need to send to falls clinic as well

Movement Disorders…

 Parkinson’s Disease

Cardinal Signs of Parkinson’s;

Bradykinesia

Rigidity

Tremor

Postural Instability

Movement Disorders…

 Parkinson’s Disease

Essential Tremor

Differentiation of ET and PD

Features of

Tremor

Essential tremor

Parkinson’s disease

Symmetry

When occurs

Other symptoms

Family History

Helps tremor

Length of time

Symmetrical Asymmetrical

On action At rest none Rigidity bradykinesia

Not usually yes

Alcohol

Over 5 years

Not usually

6-24 months

Movement Disorders…

 Parkinson’s Disease

Essential Tremor

Cerebrovascular Parkinsonism

Drug Induced Parkinsonism

Parkinson Plus Syndromes

– Multi System Atrophy (MSA)

– Progressive Supranuclear Palsy (PSP)

– Lewy Body Dementia (LBD)

Others

Drug Induced Tremor

Salbutamol

Lithium

Sodium Valproate

Drug Induced Parkinsonism

Anti-dopaminergics

Anti-emetics

– Stemetil (Prochlorperazine)

– Maxalon (Metoclopramide)

Anti-psychotics

– Typicals eg Haloperidol and Chlorpromazine

– Atypicals eg Risperidone and Olanzepine

– Don’t forget depot injections

Anti Dementia drugs (anti cholinesterase inhibitors)

– Rivastigmine, Donepezil

Drug Induced Parkinsonism

It can take up to 6 months for Parkinsonian drugs to wash out the system

Dilemmas

 Do they have underlying Parkinson’s

Disease worsened by the drug

Can the offending drug be stopped

Do they need urgent treatment for their movement disorder

Referrals

 Rarely ‘urgent’

 Send drug treatment naïve

– May be wrong diagnosis

– May not be on best drug

Full drug history

Referrals

Determined by age

< 65years to the neurologists

• >/= 65 years to me (Belinda Kessel)

Consider alternative diagnosis to PD

Consider what drugs they are on

Movement Disorder Service

Seen by consultant -/+ registrar on first visit

Tests may be arranged eg MRI brain scan

Often diagnosis on first visit

– Given lots of information eg leaflets

– Website/telephone number of PD society if appropriate

Letter to GP and patient gets copy

Movement Disorder Service

Referred as appropriate to

– Speech and language therapists

• For assessment and therapy

• For PD awareness course

– Physiotherapist

– Occupational therapist

– PD community support worker

– Parkinson’s Disease nurse specialist for first follow up (Lynne Waller PDNS)

Role of Parkinson’s Disease

Nurse Specialist

Information for patient

Titration of drugs/monitoring of side effects

Monitoring symptoms both motor and non-motor

Referral to appropriate therapist

 Advice for patient, carers and GP’s in clinic or by phone

Liaison between hospital staff and patient

Unable to do home visits

Diagnosing PD

Still a clinical diagnosis

Levo-dopa or apomorphine challenge tests not recommended

Trial of medication still good indicator

Brain scans;CT or MRI are to check for other causes eg stroke disease

Uses of DaTSCAN

TM

(

123

I-FP-CIT SPECT)

Shows dopamine uptake in basal ganglia

Differentiate PD from;

Essential Tremor

Dystonic Tremor

Drug induced Tremor and Parkinsonism

Cerebrovascular Parkinsonism

Lewy Body Dementia or Alzheimers

Poor response to Parkinson treatment

DAT Scan

Parkinson Plus Syndromes

Multi System Atrophy

(Shy Drager Syndrome)

Progressive Supranuclar Palsy

(Steele Richardson Olszewski disease)

Lewy Body Dementia

Red Flags for Parkinson Plus

Presence of early instability and falls

Pyramidal or cerebellar signs

Downgaze palsy

Early autonomic failure

Early confusion/hallucinations

Poor response to L-dopa

Non Motor Symptoms In PD

These may often predate the onset and therefore the diagnosis of motor symptoms by 4-6 years

Non Motor Symptoms in PD

Anosmia

Restless Legs

Syndrome

Sleep disturbance

Urinary problems

Bowel problems

Weight loss

Speech/swallow problems

Dizzyness on standing

Memory Problems

Apathy

Hallucination/ nightmares

Depression

Excessive sweating

Double Vision

When to start Treatment and

What?

Preferably not before seeing the specialist

If possible we start a Dopamine Agonist

Other options are;

L-Dopa +/- COMT

MAO inhibitor

NB no evidence yet of any drug being neuroprotective

1.

Drug Therapy

Anticholinergics - Benhexhol

- Orphenadrine

S.E.; anticholinergic increase dystonias neuropsychiatric

2.

Amantidine - mild anti-Parkinson effect

Useful in dyskinetic patients

Rarely can cause confusion

3.

Leva-Dopa

Madopar=l-dopa and benserazide

Sinemet=l-dopa and carbidopa

Different preparations

- capsules

- dispersible tablets

- controlled release

4.

Dopamine agonists

Old ; Pergolide, Lisuride, Bromocriptine

Cabergoline

New ; Pramipexole (Mirapexin),

Ropinerole (Requip)

Rotigotine patch (Neupro)

Apomorphine - s/c by injection or infusion

Dopamine Agonist side-effects

Peripheral oedema

Postural hypotension

Confusion and hallucinations

Nausea (use Domperidone)

Lung and cardiac valve fibrosis (ergot)

Somnalence and SOOS

Dopamine Dysregulation Syndrome and

Impulse Control Disorders

Information sheet of Dopamine Agonists

The following drugs are commonly used in patients with Parkinson’s disease and are classed as Dopamine Agonists. They are

Ropinirole (Requip ®), Cabergoline (Cabaser ®), Pramipexole (Mirapexin ®). There is also a transdermal patch called Rotigotine

(Neupro

®). These drugs can be useful to help the tremor and the slowness seen in Parkinson’s patients. Occasionally side effects occur, the most common one being nausea on first starting the drug, so often you will be given an anti-nausea drug called

Domperidone (Motilium

®) to prevent this.

Other side-effects sometimes seen are swelling of the ankles , dizziness on standing due to blood pressure dropping and also occasionally some confusion or hallucinations .

Sleepiness can occur and it is advisable when first starting this drug and during the period of increasing the dose (titration period) that if you drive a car you should always be with another person, in case the sleepiness comes on whilst driving.

A very rare side-effect with Cabergoline is fibrosis of the lungs and narrowing or leaking of the heart valves. This would give increasing shortness of breath over a period of time. If you get shortness of breath whilst taking the drug let your GP or Specialist know but don’t stop the drug immediately as it is much more likely that the breathing problem is due to other causes not related to the

Parkinson treatment. We now monitor by yearly chest X-rays and heart scans (echocardiograms).

The Rotigotine patch can occasionally cause a local skin reaction (1 in 20).

Very rarely with Parkinson drugs people taking them do normal things more excessively than usual , for example; eating, gambling, shopping, hoarding objects or having sex. Do let the doctor/nurse know if you or your partner thinks this is happening to you.

Most of the side-effects are mild and it is not necessary to stop the drug. However, if you feel the side-effects are outweighing the benefit of the drug, then we would consider stopping the drug. It is best to try and contact either Anne Martin or the doctor who prescribed the drug to discuss this, as it is usually not advisable to stop the drug suddenly, unless you have just started it. Often the symptoms go away if the dose of the drug is decreased, rather than completely stopping the drug. You may not notice any difference in your movements/tremor on starting the new drug but this may be because the dose to start with is small and is gradually built up.

Therefore please continue taking it. If you need further information, please do not hesitate to get in touch with Lynne Waller, the

Parkinson Nurse , or your Consultant through their secretary, whose numbers are available via the hospital switchboard ( 01689

863000 ).

If you do not understand the above information or have concerns then do not start the new drug until you have further discussed them with either Lynne Waller or your Specialist.

5.

COMT inhibitors - Entacapone (Comtess)

Use in conjunction with L-dopa

Smoothes out fluctuations

S.E. - neuropsychiatric

- increases dyskinesias

Commonly used in conjunction with Sinemet

Plus in the form of Stalevo

6.

Selegiline, Rasagiline - MAO-B Inhibitors

NB care with tricyclics as risk of Seratonin

Syndrome

Treatment-Related Complications

1.

2.

3.

Fluctuations

Dyskinesias

Confusion or hallucinations

Management of complications

Fluctuation and dyskinesias

– Manipulation of the drugs

– New routes of administration

– Surgery

New routes of administration

Apomorphine pump (Apo-go)

Duodopa therapy – continuous

L-dopa infusion into jejunum

Surgical Treatment

Lesioning

Deep Brain Stimulation (DBS)

Deep Brain Stimulators

Deep Brain Stimulators

Management of complications

Confusion and hallucinations

Psychiatric Side-effects

-’last in, first out principle’

- Order of stopping;

- anticholinergics

- selegiline

- amantidine

- dopamine agonists

- MAO-I

- L-dopa

Old Drugs – New Indication

Anticholinesterase Inhibitors – LBD, apathy

– Rivastigmine

– Donepezil

Atypical antipsychotics – hallucinations, agitation, dementia

– Quetiapine

– Clozapine (Psychiatrists only)

Thank you

Any questions?