eating disorders - aiims, rishikesh
TRANSCRIPT
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Eating disorders
Dr Vishal DhimanAssoc. Professor
Department of PsychiatryAIIMS Rishikesh
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Eating disorders
• Marked disturbance in eating behavior• Bulimia nervosa• Anorexia nervosa• Term ‘anorexia’ – misnomer
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Classification
Feeding and eating disorders• Pica• Rumination disorder• Avoidant/Restrictive food intake disorder• Anorexia nervosa• Bulimia nervosa• Binge-eating disorder• Other specified feeding or eating disorder• Unspecified feeding or eating disorder
Ref: ICD-10 and DSM of mental disorders
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Anorexia nervosa
• Disturbed body image• Intense fear of gaining weight or becoming fat• Refusal to maintain adequate body weight• Dieting• Malnutrition• Amenorrhea
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Anorexia nervosa (ctd.)
Types:
1. Restricting type (no binge eating)2. Binge eating or purging type
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Epidemiology
• 0.5-3%• Onset: 10-30 years• M:F – 1:10 to 1:20• More in professionals like media, etc.
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Etiology
1. Genetic2. Biological3. Psychological4. Socio-cultural
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Management
Physical examination
• Hypotension• Bradycardia• Dry skin• Lanugo hair• Peripheral edema (ankles)• Hypertrophy of salivary glands
(parotid)• Erosion of dental enamel
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Management (ctd.)
Laboratory investigations:• Anemia• Leukopenia
• Elvated BUN• Elevated LFTs• Elevated s. bicarbonate• Hypercarotenemia• Hyperaldosteronism
• Hypercholesterolemia• Hypokalemia• Hypochloremic alkalosis• Occult blood in stool
• ECG: Sinus bradycardia, ventricular dysrhythmia, prolonged QT)• Low basal metabolic rate
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Management (ctd.)
• Admission• Goal - Wt. gain, monitoring and treatment of potentially life-
threatening effects of starvation• Supervised meals• Food supplementation
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Management (ctd.)
A. PharmacologicalB. Non-pharmacological• Psychoeducation• Supportive psychotherapy• Family therapy• Individual psychodynamic psychotherapy• CBT
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Bulimia nervosa
• Episodic• Uncontrolled• Compulsive• Binge eating • Binging followed by self-induced vomiting,
purging, etc.• Usually of normal weight• Considerable overlap with anorexia, in up
to 50%
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Bulimia nervosa: types
1. Purging type 2. Non-purging type
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Epidemiology
• (F) 1-4%• Onset 16-18 years• Uncommon among men
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Etiology
1. Genetic2. Biological3. Psychological4. Socio-cultural
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Differential diagnosis
• Epilepsy• CNS tumors• Kluver-Bucy syndrome• Kleine-Levin syndrome• Borderline personality disorder• May present in other PDs• Major depressive disorder
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Management
A. HospitalizationB. Pharmacological
oAntidepressants C. Non-pharmacological
o Individual psychotherapyoCBToGroup psychotherapy