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BS 13 Anxiety, somatoform & factitious disorders and malingering
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Fear Anxiety Physiological manifestations: palpitaion, shaking of hands, sweating, dizziness (syncope), mydriasis, GIT & Urinary frequency Fear Anxiety Physiological manifestations: palpitaion, shaking of hands, sweating, dizziness (syncope), mydriasis, GIT & Urinary frequency
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Classification of anxiety disorders (DSM IV classiciation) 1.Panic disorder: sudden onset of symptoms lasting for 10 – 30 mts - episodic twice a week – cardiac & respiratory symptoms – attack can be induced by sodium lactate / CO 2 – genetic component – agrophobia (fear to go in public / open places) 2.Phobias (specific / social) – irrational fear for some objects like escalator (specific) – exaggerated fear for public speaking, eating etc – phobias are most common mental health problem 1.Panic disorder: sudden onset of symptoms lasting for 10 – 30 mts - episodic twice a week – cardiac & respiratory symptoms – attack can be induced by sodium lactate / CO 2 – genetic component – agrophobia (fear to go in public / open places) 2.Phobias (specific / social) – irrational fear for some objects like escalator (specific) – exaggerated fear for public speaking, eating etc – phobias are most common mental health problem
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3. Obsessive - compulsive disorder (OCD) – recurring intrusive feelings, thoughts / images which may cause anxiety & performing repetetive actions (compulsions) – increased in 1 st degree relatives of tourette’s syndrome pts 4.Generalized anxiety disorder: persistant anxiety symptoms for > 6 months – symptoms are not due to specific person / situation – common in 3 rd decade of life 3. Obsessive - compulsive disorder (OCD) – recurring intrusive feelings, thoughts / images which may cause anxiety & performing repetetive actions (compulsions) – increased in 1 st degree relatives of tourette’s syndrome pts 4.Generalized anxiety disorder: persistant anxiety symptoms for > 6 months – symptoms are not due to specific person / situation – common in 3 rd decade of life
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5.Post traumatic stress disorder (PTSD) & acute stress disorder (ASD): symptoms occuring after a catastrophic event, serious accident / watching a violent crime / rape etc) – symptoms include anxiety, recurrent nightmares, intrusive memories of event – PTSD symp lasts for > 1 month and can last for years – in ASD symptoms lasts for 2 – 4 days 6.Adjustment disorder: anxiety, depression & emotional symptoms occuring within 3 months and lasting < 6 months – e.g. divorce, bankruptsy etc 5.Post traumatic stress disorder (PTSD) & acute stress disorder (ASD): symptoms occuring after a catastrophic event, serious accident / watching a violent crime / rape etc) – symptoms include anxiety, recurrent nightmares, intrusive memories of event – PTSD symp lasts for > 1 month and can last for years – in ASD symptoms lasts for 2 – 4 days 6.Adjustment disorder: anxiety, depression & emotional symptoms occuring within 3 months and lasting < 6 months – e.g. divorce, bankruptsy etc
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Organic basis of anxiety GABA & Serotonin show decreased activity - Nor epinephrine show increased activity Locus ceruleus, raphae nucleus, caudate nu,temporal & frontal lobe are involved in the anxiety Excessive caffein, substance abuse, hyperthyroidism, vit B 12 deficiency phaechromacytoma etc GABA & Serotonin show decreased activity - Nor epinephrine show increased activity Locus ceruleus, raphae nucleus, caudate nu,temporal & frontal lobe are involved in the anxiety Excessive caffein, substance abuse, hyperthyroidism, vit B 12 deficiency phaechromacytoma etc
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Treatment of anxiety disorders 1. Anti anxiety agents – benzodiazepines (valium alprzolam etc) act quickly – used in panic attacks – habit forming Busprione (Buspar) has low abuse potential – ideal for long term maintenance (GAD) – takes 2 weeks to work Beta blockers (propranalol) – for autonomic symptoms like tachycardia 1. Anti anxiety agents – benzodiazepines (valium alprzolam etc) act quickly – used in panic attacks – habit forming Busprione (Buspar) has low abuse potential – ideal for long term maintenance (GAD) – takes 2 weeks to work Beta blockers (propranalol) – for autonomic symptoms like tachycardia
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2. Antidepressants: MAOIs & SSRIs are effective longterm therapy for panic disorder & OCD 3. Psychological therapy: systemic desensitization, reciprocal inhibition – for phobias behavioral therapy like flooding / implosion support groups – victim survivor group – in ASD / PTSD 2. Antidepressants: MAOIs & SSRIs are effective longterm therapy for panic disorder & OCD 3. Psychological therapy: systemic desensitization, reciprocal inhibition – for phobias behavioral therapy like flooding / implosion support groups – victim survivor group – in ASD / PTSD
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Somatoform disorders Physical symptoms without any organic cause – unconscious expression of unacceptable feelings – more common in women D. D: unidentified organic disorder / malingering Treatment: individual & / group therapy / anti anxiety agents / hypnosis / behavioral relaxation therapy Physical symptoms without any organic cause – unconscious expression of unacceptable feelings – more common in women D. D: unidentified organic disorder / malingering Treatment: individual & / group therapy / anti anxiety agents / hypnosis / behavioral relaxation therapy
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DSM classification of somatoform disorders Somatization disorder: many physical complaints over many years GIT symp (nausea), pain symptom, mentstrual symp’ etc – onset before 30 years Hypochondriasis: exaggerated concern of health & illness for > 6months – common in middle & old age Conversion disorder: goes to many different doctors – doctor shopping – blindness / paralysis associated with stressful event – common in quiet individual Somatization disorder: many physical complaints over many years GIT symp (nausea), pain symptom, mentstrual symp’ etc – onset before 30 years Hypochondriasis: exaggerated concern of health & illness for > 6months – common in middle & old age Conversion disorder: goes to many different doctors – doctor shopping – blindness / paralysis associated with stressful event – common in quiet individual
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Body dysmorphic disorder: excessive concern over minor /imagined physical defect – common in teens Pain disorder: intense prolonged pain not explained by physical illness – common in 30 – 40 years of age Body dysmorphic disorder: excessive concern over minor /imagined physical defect – common in teens Pain disorder: intense prolonged pain not explained by physical illness – common in 30 – 40 years of age
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Factious disorder (malingering) Factious disorder – conscious simulation of physical / psychiatric disorder to gain attention of medical personnel – undergone unnecessary investigation Factious disorder by proxy –conscious simulation of illness in children (form of child abuse) – must be reported Malingering: for financial gain (insurance settlement, avoiding incarceration) Factious disorder – conscious simulation of physical / psychiatric disorder to gain attention of medical personnel – undergone unnecessary investigation Factious disorder by proxy –conscious simulation of illness in children (form of child abuse) – must be reported Malingering: for financial gain (insurance settlement, avoiding incarceration)
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