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GRAND ROUND
D R. A B D U L L A M A K IS U P E RV I S E D BY D R. FAT I M A N E A M A
CHILD WITH ATAXIA
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PRESENT HISTORY
• 13 year old BAH male presented on 28/10/13 with history of:
• Unsteady gait 6-8/12 (progressive)• Slurred speech 3/12• Loss in weight and appetite• Decrease activity
And
• Urinary incontinence • Abnormal hand writing
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PRESENT HISTORY
• No history of fever
• No history of nystagmus or eye problem• • No history of skin lesion
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PAST HISTORY
• Full term , product of NVD of birth weight 3.3 kg• No history of previous admission or operation
• No allergy
• Vaccination : up to date
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SOCIAL HISTORY
• 1 of family of 11 members• Parents : consanguineous .. cousins• Living in owned house
• He is In 1st intermediate grade at school ‘should be in 2nd but failed due to change in activity & performance’
• No contact with sick persons
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PHYSICAL EXAMINATION
Child was oriented, cooperative but hypoactive , mask face and looking depressed Vitals: Temp 37, RR 30/min, HR 82/min, BP 112/65
• Slurred speech• No cyanosis or clubbing• No skin rash• Ent : normal• Chest : gynecomastia • CVS : normal• Abdominal : liver 2-3cm below CM
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PHYSICAL EXAMINATION
• CNS examination:
No facial asymmetry Tongue or uvula : in midline Power: weak grip (right more than left)Tone: hypotonic (right more than left)Reflexes : normal sensation : decrease / loss in feet (bilateral) with normal
vibration sense Sever ataxia , wide based gait with positive rhomberg’s test
(sway when he standing with closed feet & closed eye)Meningeal signs: negative
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PHYSICAL EXAMINATION
Eye : Pupils: equal, reactive to light
No nystagmus
Fundus : normal
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DIFFERENTIAL DIAGNOSIS
?? Ataxia
Any suggestion ??
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DIFFERENTIAL DIAGNOSIS
According to Presentation
ACUTE ONSET: - WITH RAPID IMPROVEMENT - WITH PROLONGED OR INTERMITTENT COURSE
INSIDIOUS ONSET - SLOW PROGRESSION OF ATAXIA - INTERMITTENT OR STATIONARY COURSE
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DIFFERENTIAL DIAGNOSIS
• Acute ataxia with rapid improvement
The two commonest causes are:
Drug Ingestion: usually Accidental. Overdose of hypnotics, tranquilizers, anticonvulsants especially phenytoin and carbamazepine
Acute cerebellar ataxia (Post infectious acute cerebellitis): like varicella, infectious mononucleosis or other viral infections (polio, mumps , coxsackie, herpes, simplex or ECHO viruses
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DIFFERENTIAL DIAGNOSIS
• Acute ataxia with prolonged or intermittent course
The commonest conditions to keep in mind are:
- Myoclonic Encephalopathy (Dancing eye syndrome) - Neuroblastoma syndrome - Brain Tumors - Multiple sclerosis - Metabolic disorders
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DIFFERENTIAL DIAGNOSIS
• ATAXIA WITH INSIDIOUS ONSET (CHRONIC ATAXIA)
Chronic ataxia with slow progression:
The commonest causes of chronic slowly progressive ataxia are :
brain tumors hereditary ataxias (Friedreich's Ataxia and Ataxia
Telangiectasia are the commonest).
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DIFFERENTIAL DIAGNOSIS
• ATAXIA WITH INSIDIOUS ONSET (CHRONIC ATAXIAS) Differential diagnosis of a child with chronic or progressive ataxia:
BRAIN TUMORS Cerebellar astrocytoma Medulloblastoma Supratentorial tumors
CONGENITAL MALFORMATIONS Basilar impression Cerebellar aplasia
Dandy walker malformation Chiari malformation Vermal aplasia
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DIFFERENTIAL DIAGNOSIS
• HEREDITARY ATAXIAS Autosomal recessive inheritance
- Ataxia telangiectasia Friedreich's ataxia - Hartnup's disease Hypobetalipoproteinemia
- Refsum's disease Wilson's disease - MSUD Mitochondrial disorders- Marinesco - Sjogren syndrome- Pyruvate dehydrogenase deficiency Ramsay Hunt syndrome - Juvenile GM2 gangliosidosis Juvenile sulfatide lipidosis - Mitochondrial disorders - Ataxia - oculomotor apraxia Ataxia with episodic dystonia
• Autosomal dominant inheritance - Olivo-ponto-cerebellar degeneration - Machado - Joseph disease
• X linked inheritance - Adrenoleukodystrophy Leber's optic neuropathy
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INVESTIGATIONS
LABS
• CBC: WBC=3.3 PMN= 49% L=37% Hb 11.2 Hct 0.34 platlets 110
• Coagulation: prologed PT
• LFT: Alkaline phosphatase & GGT raised
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DIFFERENTIAL DIAGNOSIS
?? Ataxia with elevated liver
enzyme
Again Any suggestion??
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DIFFERENTIAL DIAGNOSIS
• Autoimmune : ?? SLE
• Metabolic : ?? Mitochondrial disorders - Pyruvate carboxylase deficiency
• Neurodegenrative disease : ?? wilson’s disease
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INVESTIGATIONS
• ANA negative
• Serology : normal except for past EBV infection
• Vit b12 : normal
• Iron study : normal
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FURTHER EVALUATION
• Multiple teams involved ( GIT – METABOLIC – ENDOCRAINE – HEMATOLOGY – OPHTHALMOLOGY)
• All basic lab repeated CBC – LFT – COAGULATION with (serum & urine) copper , serum ceruloplasmin and zink
• Metabolic & endocrine work up
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FURTHER EVALUATION
Ophthalmology :
?? Kayser–Fleischer ring
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INVESTIGATIONS
• Serum copper : low
• Serum Ceruloplasmin : low
• Urine copper : high
• Zinc : high
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INVESTIGATIONS
CT brainBilateral basal ganglia hypodensity Suggest of : metabolic disease or hypoxic change
MRI spine
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IMPRESSION
13 year old boy with Wilson’s disease
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SCREENING
• After diagnosis , screening done for all members with LFT , CERULOPLASMIN AND COPPER
• RESULT :?? 2 of his sisters have lab result suggest wilson’s disease
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MANAGEMENT
Started on :
• D. PINICILLAMINE 500mg BD PO• Vit B6 ( PYRODIXIN) 500 mg OD• PREDNISONE (by hematologist due to thrombocytopenia)• ZANTAC
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FURTHER INVESTIGATIONS
Bone marrow aspiration :
• Varriable cellularity BM showing increased erythropoisis , adequate megakaryocyte . Granulopoiesis is reduced • Hemophagocyteosis• No evidence of involvment by lymphoma
• ?? Hemophagocytic lymphohistiocytosis
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FURTHER INVESTIGATIONS
• Abdominal US : suggestive of liver cirrhosis No portal HTN
• Abdominal CT : splenomegally
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PROGRESS
• Followed by multiple teams including Psychiatry team• After starting treatment , Liver enzyme start to
coming down but :1. c/o knee pain … orthopedic team involved2. Ataxia worsened3. More depressed4. Increase slurring 5. Refuse to walk
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PROGRESS
• Last seen in the clinic , he had : 1. Resting tremor 2. Dystonia in arms3. Dysphasic
so started on L-DOPA , CARBI-DOPA AND ANTI CHOLENERGIC medications
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DISCUSSION
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WILSON’S DISEASE
• Due to a genetic abnormality inherited in an autosomal recessive manner .
• The abnormal gen for wilson’s disease is on ch 13 (q14-q21)
• Leads to impairment of cellular copper transport.
• Prevalence of approximately 1 case in 30,000 live births in most populations
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PATHOGENESIS
• Defective mobilization of copper from lysosomes in liver cells , leading to accumulation of copper in the liver.• When copper accumulation exceed the point of
retention capacity , copper escape to other organ particularly brain , kidney and cornea• Over time, the liver is progressively damaged and
becomes cirrhotic. A small percent of patients develop acute liver failure
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CLINICAL MANIFESTATIONS
Patients may present with a wide variety of symptoms (especially those with neurologic symptoms)
●Liver disease: 18 to 84 percent of patients●Neurologic symptoms: 18 to 73 percent of
patients ●Psychiatric symptoms: 10 to 100 percent of
patients
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NEUROLOGIC MANIFESTATIONS
• Dysarthria – 85 to 97 percent of patients with neurologic Wilson disease• ●Gait abnormalities/ataxia – 30 to 75 percent• ●Dystonia – 11 to 69 percent• ●Tremor – 22 to 55 percent• ●Parkinsonism – 19 to 62 percent• ●Drooling – 48 to 86 percent• ●Chorea• ●Athetosis• ●Cognitive impairment/dementia• ●Seizures• ●Hyperreflexia• ●Myoclonia• ●Urinary incontinence• ●Autonomic dysfunction• ● Focal manifestations of dystonia include cervical dystonia (torticollis), writer's
cramp, dysphonia, dysarthria, or dysphagia,
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HEPATIC MANIFESTATIONS
• ●Asymptomatic (steatosis, chronic hepatitis, compensated cirrhosis)
• ●Abdominal pain (acute hepatitis, acute liver failure)• ●Jaundice (acute hepatitis, acute liver failure, cirrhosis)• ●Hepatomegaly (acute and chronic hepatitis, acute liver
failure)• ●Splenomegaly (cirrhosis)• ●Ascites (cirrhosis)• ●Upper gastrointestinal bleeding (cirrhosis with varices or
portal hypertensive gastropathy)• ●Peripheral stigmata of chronic liver disease (cirrhosis)• ●Mental status changes due to hepatic encephalopathy
(acute liver failure, cirrhosis
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BEHAVIORAL AND PSYCHIATRIC SYMPTOMS
• ●Depression
• ●Declining school performance
• ●Personality changes (which may be subtle)
• ●Irritability
• ●Labile mood
• ●Inappropriate behavior
• ●Bipolar affective disorder
• ●Psychosis
• ● Cognitive impairment — Two main categories of cognitive impairment in Wilson disease have been described, a frontal syndrome and subcortical dementia
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OCULAR MANIFESTATIONS
• Kayser-Fleischer rings : are brownish or gray-green rings that are due to fine pigmented granular deposits of copper in the cornea.
• Seen in about 98 percent of patients with neurologic manifestations and about 50 percent of patients with hepatic manifestations.• often only detected by slit-lamp examination
• Sunflower cataracts
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OTHER MANIFESTATIONS
• ● Fanconi syndrome• ●Nephrolithiasis • ●Arthropathy , most commonly in the knee. • ●Gigantism.• ●Cardiomyopathy.• ●Myopathy.• ●Hypoparathyroidism.• ●Pancreatitis.• ●Impotence.• ●Infertility or repeated spontaneous abortions.• ●Dermatologic disorders. These include blue lunulae ,
acanthosis nigricans, and pretibial hyperpigmentation. Dermatologic manifestations may also occur from treatment with penicillamine
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INITIAL EVALUATION
• We start the evaluation with:
• Determination of liver biochemical tests to look for evidence of active inflammation and to assess the AST to ALT ratio (often >2 in patients with Wilson disease)
• A complete blood count to look for anemia (followed by testing for Coombs-negative hemolytic anemia if indicated)
• Measurement of the serum ceruloplasmin concentration• Measurement of the serum copper concentration • An ocular slit-lamp examination• Determination of 24-hour urinary copper excretion • Molecular testing for ATP7B mutations in siblings of
affected patients
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INTERPRETATION OF TEST RESULTS
Low ceruloplasmin (<20 mg/dL or 200 mg/L), low serum copper concentration
Kayser-Fleischer rings present: •A diagnosis if 24-hour urinary copper excretion is
>40 mcg •If urinary copper excretion is ≤40 mcg , a liver
biopsy should be done or molecular genetic testing
Kayser-Fleischer rings absent:•if the 24-hour urinary copper excretion is >100 mcg •If the urinary copper excretion is ≤100 mcg a liver biopsy should be done or molecular genetic
testing
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INTERPRETATION OF TEST RESULTS
Normal or elevated ceruloplasmin (≥20 mg/dL or 200 mg/L), normal serum copper concentration
Kayser-Fleischer rings present: •A liver biopsy should be obtained regardless of urinary
copper excretion, or molecular genetic testing
Kayser-Fleischer rings absent: •A diagnosis of Wilson disease is excluded if the urinary
copper excretion is ≤40 mcg •If the urinary copper excretion is >40 mcg, a liver biopsy
should be obtained or molecular genetic testing may be done
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INTERPRETATION OF TEST RESULTS
• A diagnosis of Wilson disease is established if the hepatic copper concentration is ≥250 mcg/g dry weight
• A diagnosis of Wilson disease is excluded if the hepatic copper concentration is <50 mcg/g dry weight
• Screening family members — First-degree relatives of patients diagnosed with Wilson disease should be screened for the disease
• This approach is similar to that outlined in a 2008 consensus guideline from the American Association for the Study of Liver Diseases and from the European Association for the Study of the Liver
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OTHERS
• A Coombs-negative hemolytic anemia. • Serum aminotransferases that are typically less
than 2000 int. unit/L.• The ratio of the AST to ALT is often >2.• The alkaline phosphatase may be normal or
markedly subnormal• Low uric acid levels.• A coagulopathy that is unresponsive to vitamin K.• Rapidly progressive renal failure.
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OTHER MODALITIES
• Magnetic resonance imaging (MRI) or computed tomographic (CT) scanning of the brain may reveal structural abnormalities in the basal ganglia
• Cerebrospinal fluid (CSF) copper concentrations in patients with neurologic Wilson disease are elevated three to four times relative to those in patients without Wilson
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CANCER RISK
Whether patients with Wilson disease are at increased risk for hepatocellular carcinoma or other malignancies is unclear.
Occasional reports have described hepatocellular carcinoma and cholangiocarcinoma
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TREATMENT
Medication Summary
• Zinc and penicillamine are lifelong medications• Other medications used to treat Wilson disease include anticholinergics,
baclofen, gamma-amino-butyric acid (GABA) antagonists, and levodopa, to treat parkinsonism and dystonia symptoms; antiepileptics to treat seizures; and neuroleptics to treat psychiatric symptoms
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TREATMENT
Dietary In general, a diet low in copper-containing foods
is recommended with the avoidance of mushrooms, nuts, chocolate, dried fruit, liver, and shellfish.[1]
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TREATMENT
Chelators Chelating agents bind excess copper. • Penicillamine (Cuprimine, Depen) • Trientine (Syprine) • Dimercaprol (BAL in Oil)
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TREATMENT
Nutrients
• Essential to normal growth and development, and play a role in many metabolic processes• Zinc (Galzin)• It is approved for patients initially treated with a
chelating agent. • Pyridoxine (Aminoxin, Pyri-500) • Pyridoxine is involved in synthesis of GABA within
the CNS..
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TREATMENT
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PHYSICAL THERAPY
• Physiotherapy is beneficial for patients with the neurologic form of the disease.
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SURGERY
• Transplantation Liver transplantation is an effective cure for
Wilson's disease but is used only in particular scenarios because of the risks and complications associated with the procedure
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PROGNOSIS
• Untreated, Wilson disease is universally fatal. Copper accumulation in the liver leads to the development of cirrhosis.• Among patients with neurologic Wilson disease,
the neurologic disease may progress until the patient becomes severely dystonic, akinetic, and mute.• The prognosis for patients who receive treatment
is excellent, even in some who already have advanced liver disease.• survival following transplantation is excellent
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Thank you!