DEPRESSION IN THE ELDERLY

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Objectives

 Review the diagnostic criteria for depression

 Increase awareness of the prevalence and consequences of untreated depression in the older adult

Introduction

 Depression is under-recognized and undertreated in the older adult

 Many older adults who die by suicide (up to 75%) suffer with depression and most visited a physician within a month before death

 Untreated depression can delay recovery or worsen the outcome of other medical illnesses via increased morbidity or mortality

 Depression is NOT a part of normal aging

What is Depression?

DSM-IV-TR Definition

 Five or more of the following must have been present during the same 2-week interval and represent a change from baseline functioning

 One(1) of the symptoms must be depressed mood or loss of interest or pleasure

What is Depression?

 DSM-IV-TR (“core symptoms”; occur most of the day nearly every day)

 Depressed mood

 Loss of interest in all or almost all activities or pleasure (anhedonia)

 Appetite change or weight loss

 Insomnia or hypersomnia

 Psychomotor agitation or retardation

What is Depression?

 DSM-IV-TR

 Loss of energy or fatigue

 Feelings of worthlessness or excessive guilt

 Difficulty with thinking, concentration, or decision making

 Recurrent thoughts of death or suicide

Special clinical features in late life

 Depression without sadness

 Lack of feeling or emotion

 Prominent cognitive compliants

 prominent somatic compliants

 Multiple primary care visits without resolution of problem

 Social withdrawal,avoidance of social intraction

What is Depression?

 For Major Depression, these symptoms

 Produce social impairment

 Are not related to substance abuse

 Are not related to bereavement

What is Depression?

 Types of Depressive Disorders (DSM-IV)

 Mild episode of major depression

 Moderate episode of major depression

 Severe episode of major depression

 Severe episode of major depression with psychotic features

What is Depression?

 Minor depression is common

15% of older persons

Causes

 use of health services, excess disability, poor health outcomes, including

 mortality

 Major depression is not common

 1%–2% of physically healthy community dwellers

 Elders less likely to recognize or endorse depressed mood

But in Geriatric depression:

 Classical major depression is less frequent:

 M.d.d about 1-2%

 Dysthymic disorder 2%

 Depressive symptoms 15-25%

Vulnerable Groups

Medically ill

Disabled and institutionalized elderly

Spousal death

Older adult with malignancies,neurologic and endocrine: one half of post strok,onefourth of cancer inpatients, one third of MI

 -

Risk Factors

 Alcohol or substance abuse

 Current use of a medication associated with a high risk of depression

 Hearing or vision impairment severe enough to affect function

 History of attempted suicide

 History of psychiatric hospitalization

Risk factors

 Medical diagnosis or diagnoses associated with a high risk of depression

 change of environment

 New stressful losses (loss of autonomy, privacy, functional status, body part, family member or friend)

 Personal or family history of depression or mood disorder

CO MORBID CONDITIONS TO CONCIDER IN LATE LIFE

DEP.

 Substance,dementia,chronic pain

 Metabolic disease,malnutrition,endocrine dysfunction

 Cerebral disorder

 Cardiovascular disorder,hypotensive episodes

 CHF

 Pulmonary disease

 Cancer

 Physical abuse or emotional abuse by caregivers/relative

What medications do YOU prescribe for older adults that might place them at risk for

DEPRESSION

?

Medications that may cause symptoms of Depression

 Anabolic steroids

 Anti-arrhythmic medications

 Anticonvulsant medications

 Barbiturates

 Benzodiazepines

 Carbidopa or levodopa

 Certain beta-adrenergic antagonists (i.e. propranol)

Medications that may cause symptoms of Depression

 Clonidine

 Digitalis preparations

 Glucocorticoids (prednisone)

 H2 blockers

 Metoclopramide

 Opioids

Laboratory Tests for Evaluation

 , BUN, creat, Ca ++ , glucose)

 CBC

 Serum levels of anticonvulsant drugs, TCAs, digoxin, theophylline

 Thyroid function (T3, T4, TSH)

 EKG

Differential Diagnosis

Thyroid disorders (hypo- and hyper-thyroidism)

Dementia (or mild cognitive impairment)

Bereavement

Anxiety Disorder

Substance Abuse Disorder

Personality Disorder

Diabetes mellitus

Underlying malignancy

Anemia

Medication side effects

Differential Diagnosis

 DEPRESSION  DEMENTIA

Subacute onset

Family recognition early

Rapid progression

Insidious onset

Delayed family recognition

Slow progression

; slow, gradual decline

Appears depressed

Anhedonia

Abstract thought usually normal

“I don’t know” response to questions

Pt often unconcerned

Pt denies/unaware of deficits

Not depressed

Can experience pleasure

Abstract thought impaired

Near miss answers

Pt tries to cover up

How evaluate symptoms?

 Mood Symptoms?

 Cognitive symptoms?

Behavioral symptoms?

Mood Symptom:

 onset?

 Stressor?

 New medical illness?

 New events?

 Motor sign?

 Cognitive signe?

Behavioral Symptoms:

 Cognitive evaluation

 (acute change? Incidious? )

 Psychosis

 Mood

Cognitive symptoms

 acute? : Dlirium(retard psychomotor-agitation)

 Chronic :dementia evaluation

 Focal sign?

Differential diagnosis

 Psychiatric disorders:

 Medical illness especial neurological disease

Treatment

 Goals of therapy: improve mood, function, and quality of life

 Goals of treatment of an acute depressive episode are to achieve recovery and prevent future episodes of depression

 The intended outcome should be complete resolution of symptoms, not simply a reduction in depressive symptoms.

 Three phases of treatment are generally required to achieve these goals.

Treatment

 Acute Phase (reverse current episode)

 Duration: about 3 months: Goal is complete recovery from signs and sx of acute episode

 Continuation Phase (prevent a relapse)

 Duration: 4-6 months: Goal is to prevent relapse as sx continue to decline and functionality improves

 Maintenance Phase (prevent future recurrence)

 Duration: 3 months or longer: Goal is to prevent recurrence of a new depressive episode

Treatment

 Pharmacotherapy

 Psychotherapy

 Electroconvulsive therapy (ECT)

Treatment

 Patients should be monitored for response to treatment by:

 Observation for resolution of signs and symptoms of depression

 Also monitor patients carefully for side effects and interactions with other medications

Pharmachotherapy :

 50-60% improve with antidepressants

 Age related change influence pharmakietic:

 Longer time for response

 More side effects

Pharmachotherapy:

 Depends :

 Psychiatric co morbidity

 Medical illness

 But , drug of choice

 SSRIS

Pharmachotherapy:

 Sertraline:25-50mg daily

 Fluoxetine:10 mg

 Citalopram :10mg

 Less intraction :sertraline and citalopram

Fluoxetine increase nortriptyline,verapamil,B blokers

Better tolerated than tricyclics

SIADH at high doses and sexual side effects

Interact with CYP-450 isoenzymes by inhibition

Can increase the anticoagulant effect of warfarin

Do not discontinue abruptly; taper the dose

 ,

Treatment : Pharmacotherapy

 Antidepressants (SSRIs continued)

 Nausea and diarrhea might occur

 Fluoxetine is not a preferred drug for use in the elderly due to a prolonged half life (4-6 days; metabolite 9.3 days) and potential for many drug interactions . It might also induce anxiety, sleep disturbance, and/or agitation

 Paroxetine is also not favored due to anti-cholinergic properties and other effects noted with fluoxetine

pharmachotherapy

 TCA : nortriptyline.desipramine

 Caution: cardiac .prostatic,glaucoma,cognitive,falling risk

 10-25mg

 Potential for anticholinergic and sedative effects

 Avoid in pts. who are prone to constipation, orthostatic hypotension, glaucoma, or who have BPH

 May cause ventricular conduction delays and heart block

 May be fatal in overdose

Pharmachotherapy:

 SNRI: Velnafaxin 37/5mg_75mg up 112.5-225mg

 Caution :hypertention

 Side effects:nausea,(slow titration)

 special for chronic pain

Treatment : Psychotherapy

Cognitive-behavioral

Interpersonal

Short-term psychodynamic

Life review, reminisce

Problem solving

Supportive

Bereavement therapy

Behavioral

Dialectical-behavioral therapy

Consequences and Complications of

Inadequately Treated Depression

 Risk factors for suicide:

 depression older age

 physical illness living alone (single, divorced, or separated and without children) male gender drug abuse or alcoholism having a personal or family history of suicide attempt severe anxiety or stress specific plan with access to firearms or other means.

Summary

 In older adults, depression is:

 Common (especially “minor” depression)

 Associated with morbidity

 Difficult to diagnose because of atypical presentation, more somatic concerns, overlap with symptoms of other illnesses

 Differential diagnoses include other medical illnesses, dementia, bereavement

Summary

 Suicide is a serious concern in depressed older patients, particularly older white males

 Treatment (acute & preventive) should be individualized and may include:

 Pharmacotherapy

Psychotherapy

ECT

 Choice of antidepressant should be based on comorbidities, side-effect profiles, patient sensitivity, potential drug interactions

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