
Organic Mental Disorders due to Physical Diseases CHEN Jin-dong M.D
Organic Mental Disorders due to Physical Diseases CHEN Jin-dong M.D

Definition o Mental disorders arise from brain dysfunction which is clearly caused by disease outside the brain
Definition ⚫ Mental disorders arise from brain dysfunction which is clearly caused by disease outside the brain

Etiology various systemic disturbances: Infection Endocrine disturbance Nutritional and metabolic disorders et al
Etiology various systemic disturbances: Infection Endocrine disturbance Nutritional and metabolic disorders et al

Clinical manifestation Acute brain syndrome:delirium. Chronic brain syndrome: cognitive impairment personality changes Others: depression,elation,delusion,hallucination, psychomotor agitation and stupor
Clinical manifestation Acute brain syndrome: delirium. Chronic brain syndrome: ➢ cognitive impairment ➢ personality changes Others: depression, elation, delusion, hallucination, psychomotor agitation and stupor

Common clinical features(1) 1.Psychiatric symptoms usually appear in the peak of the physical diseases. 2.Psychiatric symptoms usually fluctuate with physical disease
Common clinical features(1) 1.Psychiatric symptoms usually appear in the peak of the physical diseases. 2.Psychiatric symptoms usually fluctuate with physical disease

3.The symptoms are less severe in daylight and severe in night or vary with physical disease. 4.Course and prognosis mainly depend on the treatment of primary diseases
3. The symptoms are less severe in daylight and severe in night or vary with physical disease. 4. Course and prognosis mainly depend on the treatment of primary diseases. (2)

5.The prognosis is better if psychiatric symptom lasts for a shorter period;in severe case,patients may leave behind personality change and intellectual disturbance
5.The prognosis is better if psychiatric symptom lasts for a shorter period; in severe case, patients may leave behind personality change and intellectual disturbance. (3)

6.Commonly associated with physical and NS signs and positive laboratory results
6. Commonly associated with physical and NS signs and positive laboratory results. (4)

Diagnoses Evidence of physical disease Evidence indicates that physical disease cause mental disorders Presence of atypical symptom of mental disorders
Diagnoses ✓ Evidence of physical disease ✓ Evidence indicates that physical disease cause mental disorders ✓ Presence of atypical symptom of mental disorders

Diagnostic Criteria(CCMD-3) A.Symptom criteria: (1)Presence of a systemic disease as evident in the clinical history,physical examination and lab investigation results;
Diagnostic Criteria(CCMD-3) A. Symptom criteria: (1) Presence of a systemic disease as evident in the clinical history, physical examination and lab investigation results;