UNIT TWO SEVERE MENTAL DISORDERS CHAPTER TWO MOOD (AFFECTIVE) DISORDERS 1 CHAPTER 2: MOOD (AFFECTIVE) DISORDERS DEFINITIONS Mood Mood is a pervasive and sustained emotion that may have a major influence on a person’s perception of the world (Examples of mood include depression, joy, elation, anger, and anxiety) Affect Affect is described as the emotional reaction associated with an experience 2 EPIDEMIOLOGY Studies have shown no consistent relationship between race and affective disorder, All races, all ages, both sexes are susceptible to depression episodes, but some are more susceptible than others Depression is the fourth leading cause of disability in the USA, and is expected to be the second leading cause of disability by 2020 Depression is sometimes called by some researchers as the common cold of psychiatric disorders and this generation as an age of melancholia 3 The incidence of depression is higher in young women and has a tendency to decrease with age The opposite has been found in men, with the prevalence of depressive symptoms being lower in younger men and increasing with age. This can be related to: 1. Gender differences in social roles and economic and social opportunities and the shifts that occur with age. 2. The construction of gender stereotypes, or gender socialization, promotes typical female characteristics, such as helplessness, passivity, and emotionality, which are associated with depression 4 The highest incidence of depressive symptoms has been indicated in individuals without close interpersonal relationships and in persons who are divorced or separated There are lower rates of depressive symptoms among married men and higher rates among married women and single men 5 PRIMARY RISK FACTORS FOR MOOD DISORDERS 1. History of prior episodes of depression 2. Family history of depressive disorder, especially in first degree relatives 3. History of suicide attempts and/or family history of suicide 4. Female gender 5. Age 40 years or younger 6. Postpartum period 7. Medical illness 8. Absent of social support 6 9. Negative, stressful life events 10. Active alcohol or substance abuse TYPES OF MOOD DISORDERS Mood disorders are classified under two major categories: 1. Depressive disorders 2. Bipolar disorders 7 A. DEPRESSIVE DISORDERS 8 1. MAJOR DEPRESSIVE DISORDER (MDD) DEFINITION OF DEPRESSION Depression is an alteration in mood that is expressed by feelings of sadness, despair, and pessimism. There is a loss of interest in usual activities, and somatic symptoms may be evident. Changes in appetite and sleep patterns are common 9 DESCRIPTION OF DEPRESSION The course of MDD is variable Patients with MDD experience substantial pain and suffering and psychological, social, and occupational disability during their depression The symptoms often interfere with the patients’ social and occupational functioning and sometimes may include psychotic features Delusional or psychotic major depression is a severe form of Mood Disorder that is characterized by delusions or hallucinations Depression affects almost 10% of the population worldwide 10 At least 60% of those people can expect to have a second episode People who have had a second episode of MDD have 70% chance of having a third episode Those who have three episodes have a 90% chance of more future episodes The DSM IV TR diagnosis will identify: The degree of severity of symptoms (mild, moderate, or severe If there is evidence of psychotic or catatonic features If there is a seasonal pattern of the episode 11 12 The DSM-IV-TR diagnostic criteria for major depressive disorder A. Five (or more) of the following symptoms have been present during the same Two-Week period and represent a change from previous functioning; at least one of the symptoms is either (1) depressed mood or (2) loss of interest or pleasure 1. Depressed mood most of the day, nearly every day, as indicated by either subjective report (e.g., feels sad or empty) or observation made by others (e.g., appears tearful). NOTE: In children and adolescents, can be irritable mood. 2. Markedly diminished interest or pleasure in all, or almost all, activities most of the day, nearly every day (as indicated either by subjective account or observation made by others) 3. Significant weight loss when not dieting or weight gain (e.g., a change of more than 5% of body weight in a month), or a decrease or increase in appetite nearly every day. NOTE: In children, consider failure to make expected weight gains 4. Insomnia or hypersomnia nearly every day 13 5. Psychomotor agitation or retardation nearly 14 every day (observable by others, not merely subjective feelings of restlessness or being slowed down) 6. Fatigue or loss of energy nearly every day 7. Feelings of worthlessness or excessive or inappropriate guilt (which may be delusional) nearly every day (not merely self-reproach or guilt about being sick) 8. Diminished ability to think or concentrate, or indecisiveness, nearly every day (either by subjective account or as observed by others), recurrent thoughts of death (not just fear of dying) 9. Recurrent suicidal ideation without a specific plan, or a suicide attempt or a specific plan for committing suicide B. There has never been a manic episode, a mixed episode, or a hypomanic episode that was not substance or treatment induced or due to the direct physiological effects of a general medical condition C. The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning 15 D. The symptoms are not due to the direct physiological effects of a substance (e.g., a drug of abuse, a medication) or a general medical condition (e.g., hypothyroidism) E. The symptoms are not better accounted for by bereavement (i.e., after the loss of a loved one), the symptoms persist for longer than 2 months or are characterized by marked functional impairment, morbid preoccupation with worthlessness, suicidal ideation, psychotic symptoms, or psychomotor retardation. 16 MAJOR DEPRESSIVE DISORDER (MDD) SUBTYPES 1. MDD with psychotic features indicates the presence of delusion such as delusions of guilt, or being punished for sins, somatic delusions of horrible disease or body rotting, delusions of poverty or going bankrupt Or the presence of hallucinations usually auditory, voices berating person for sins or shortcomings 17 2. MDD with Postpartum onset Onset within 4 weeks of childbirth Can present with or without psychotic features Severe rumination or delusional thoughts about infant increased risk of harm to infant 18 3. MDD with seasonal characteristics (Seasonal Affective Disorder SAD) Indicates that episodes mostly begin in Autumn or Winter and remit in Spring Characterized by anergia, hypersomnia, overeating, weight gain, and a craving for carbohydrates Responds to phototherapy (light therapy) 19 Phototherapy treats seasonal affective disorder (SAD) by stimulating the production of retinal dopamine and suppressing the production of retinal melatonin (hormone of darkness) 4. MDD with chronic feature Indicates MDD lasting 2 years or longer 20 2. DYSTHYMIA DISORDER (DD) DESCRIPTION Characteristics of DD are similar to those of major depressive disorder but milder Individuals with DD describe their mood as sad or “down” In DD, there is no evidence of psychotic symptoms The essential feature of DD is a chronically depressed mood (Irritable mood in children or adolescents) for most of the day, more days than not, for at least 2 years (1 year for children and adolescents). 21 The diagnosis is identified as: 1. Early onset: Occurring before age 21 years 2. Late onset: Occurring at age 21 years or older Although DD patients suffer from social and occupational distress, it is usually not severe enough to need hospitalization unless the patient become suicidal DD patients are at risk of developing MDD as well as other psychotic disorders Differentiating MDD from DD is difficult because both have similar symptoms 22 The main differences are in the duration and the severity of the symptoms 23 DYSTHYMIA DISORDER (DD) SUBTYPES 1. DD and MDD with atypical features Indicate mood reactivity: Can be cheered with positive events Rejection sensitivity (pathological sensitivity to perceived interpersonal rejection) These features present throughout life and result in functional impairment Other symptoms include: hypersomnia and hyperphagia 24 OTHER DEPRESSIVE DISORDERS DESCRIPTION The following disorders have no DSM-IV-TR official diagnostic category It provides a set of research criteria to promote further study of these disorders 25 1. PREMENSTRUAL DYSPHORIC DISORDER PDS characterized by more severe symptoms than Premenstrual Syndrome (PMS) Symptoms begin toward last week of luteal (secretory) phase and are absent in the week following menses (it is the latter phase of the menstrual cycle that begins with the formation of the corpus luteum and ends in either pregnancy or luteolysis 26 The essential features include: 1. Markedly depressed mood 2. Excessive anxiety 3. Mood swings 4. Persistent and marked anger or irritability 5. Anergia 6. Overeating 7. Difficulty concentrating 8. Feeling of being out of control or 27 overwhelmed 9. Decreased interest in activities during the week prior to menses and subsiding shortly after the onset of menstruation Somatic complaints, such as headache, edema, backache, and breast tenderness, as well as changes in appetite and sleep patterns, are common There is no DSM-IV-TR Diagnostic criteria for Premenstrual Dysphoric Disorder (PDD), only research criteria 28 2. MIXED ANXIETY DEPRESSION Prevalence of 5% Characterized by significant functional disability Criteria include at least 1 month of persistent Dysphoric mood, with possible hypervigilance, difficulty concentrating, fatigue, low-self esteem, irritability, All these symptoms causing significant distress or impairment in functioning 29 3. RECURRENT BRIEF DEPRESSION Meets criteria for depressive episode, but episodes last 1 day to 1 week Depressive episode must reappear at least once per month over 12 months or more Carries a high risk for suicide 30 4. MINOR DEPRESSION Characterized by sustained depressed mood without the full depressive syndrome Pessimistic attitude and self-pity are required for the diagnosis Maybe chronic and maybe complicated by a superimposed major depressive episode 31 TREATMENT OF DEPRESSIVE DISORDERS ANTIDEPRESSANTS INDICATIONS: Antidepressant medications are used in the treatment of the following disorders: 1. Major depression with melancholia or psychotic symptoms 2. Depressive phase of bipolar disorder 3. Depression accompanied by anxiety 32 4. Dysthymia Disorder 5. Depression associated with organic disease, alcoholism, schizophrenia, or mental retardation Effects of treatment with Antidepressants 1. Elevate mood 2. Increase physical activity 3. Increase mental alertness 4. Improve appetite and sleep 5. Restore interest or pleasure in usual daily activities previously enjoyed 33 MODE OF ACTION 1. Depression results from a decrease in the concentration of the following monoamine neurotransmitter to a level insufficient to stimulate Norepinephrine (Noradrenalin) 2. Serotonin (5 Hydroxytriptamine) 3. Dopamine he receptors Research indicates that by inhibiting the breakdown of the monoamine neurotransmitters or inhibiting their reuptake to the pre-synapses at the neuron level in the brain, mood can be effectively elevated and improved. 34 CONTRAINDICATIONS/PRECAUTIONS Hypersensitivity to antidepressants Acute recovery phase of myocardial infarction Individuals with angle-closure glaucoma (Narrow-Angle Glaucoma) Special attention and close observations should be given to elderly people with hepatic, renal, or cardiac insufficiency when starting them on Antidepressants 35 Caution: As these drugs take effect, and mood begins to improve, the individual may have increased physical energy enough to carry out a suicide that he planned when he was depressed. Suicide potential often increases as the level of depression decreases. The nurse should be particularly alert to sudden improvement in mood 36 CLASSIFICATIONS OF ANTIDEPRESSANT Antidepressants generally fall into five types: 1. Tricyclic Antidepressants (TCAs) 2. Monoamine Oxidase Inhibitors (MAOIS) 3. Serotonin-Specific Reuptake Inhibitors (SSRIs) 4. Serotonin-Norepinephrine-Reuptake Inhibitors (SNRI) 5. Hetrocyclic Antidepressants 37 TRICYCLICS ANTIDEPRESSANTS 1. Amitriptyline (Elavil) 2. Imipramine (Tofranil) 3. Clomipramine (Anafranil) 4. Trimipramine (Surmontil) Side effects most commonly occur with Tricyclic Antidepressants: Blurred vision, Constipation, Urinary retention, Orthostatic hypotension, Tachycardia; arrhythmias, Photosensitivity, Weight gain, Reduction of seizure threshold 38 MONOAMINE OXIDASE INHIBITORS (MAOIS) Commonly used MAOIs: 1. Isocarboxazid (Marplan) 2. Phenelzine (Nardil) Side effects most commonly occur with MAOIs: 1. Hypertensive crisis: A 14-day interval is recommended between use of Tricyclic Antidepressants drugs and MAOIs drugs 39 Life threatening hypertensive crisis may occur with concurrent use of certain medications and certain foods substances that contain Tyramine High Tyramine containing foods: Aged cheeses (cheddar) Red wines Smoked and processed meats (salami, pepperoni) Caviar Corned beef Chicken or beef liver Soy sauce, 40 Moderate Tyramine containing foods: Yogurt Avocados Bananas Beer White wine, coffee, colas, tea, hot chocolate Chocolate Low Tyramine containing foods: Cream cheese Figs 41 Symptoms of hypertensive crisis include: 1. Severe occipital headache 2. Palpitations 3. Nausea & vomiting 4. Fever & sweating 5. Marked increase in blood pressure 6. Chest pain and coma. Treatment of hypertensive crisis: 1. Discontinue drug immediately 2. Monitor vital signs 42 3. Administer short-acting antihypertensive medication 4. Use external cooling measures to control hyperpyrexia SELECTIVE SEROTONIN REUPTAKE INHIBITORS (SSRIS) Most commonly used SSRIs: 1. Citalopram (Celexa) 2. Fluoxetine (Prozac) 3. Fluvoxamine (Luvox) 4. Sertraline (Zoloft) 43 Side effects most commonly occur with SSRIs: 1. Hypertensive crisis can occur if SSRIs are used within 14 days of MAOIs. 2. Insomnia and agitation 3. Headache 4. Weight loss (may occur early in therapy) 5. Sexual dysfunction 44 Serotonin syndrome: Occurs when treating with two drugs that 45 increase the availability of Serotonin in the brain. Most frequent symptoms include changes in mental status, restlessness, hyperreflexia, tachycardia, labile blood pressure, diaphoresis, shivering, and tremors. Treatment: Discontinue the drug immediately. The physician will prescribe medications to block serotonin receptors, relieve hyperthermia and muscle rigidity, and prevent seizures. Artificial ventilation may be required. The condition will usually resolve on its own once the offending medication has been discontinued. However, if the medication is not discontinued, the condition can progress to a more serious state and become fatal SEROTONIN NOREPINEPHRINE REUPTAKE INHIBITORS (SNRIs) Most commonly used SNRIs: 1. Venlafaxine (Effexor) 2. Duloxetine (Cymbalta) 46 HETROCYCLIC ANTIDEPRESSANTS Most commonly used Heterocyclic Antidepressants: 1. Bupropion (Zyban; Wellbutrin) 2. Maprotiline (Ludiomil) 3. Mirtazapine (Remeron) 4. Trazodone (Desyrel) 47 NURSING CARE PLANNING FOR PATIENTS RECEIVING ANTIDEPRESSANTS Diagnoses Example of nursing diagnoses may be considered for clients receiving therapy with antidepressant medications: Risk for suicide related to depressed mood Risk for injury related to side effects of sedation, lowered seizure threshold, orthostatic hypotension, photosensitivity, arrhythmias, hypertensive crisis, or serotonin syndrome. Constipation related to side effects of the medication. 48 Planning/Implementation The plan of care should include monitoring for the following side effects from antidepressant medications: Dry mouth: offer the client sugarless candy, ice, frequent sips of water. Strict oral hygiene is very important Sedation: request an order from the physician for the drug to be given at bedtime. Request that the physician decrease the dosage or perhaps order a less sedating drug. Instruct the client not to drive or use dangerous equipment while experiencing sedation. 49 Nausea: medication may be taken with food to minimize GI distress. Discontinuation syndrome: All classes of antidepressants have varying potentials to cause discontinuation syndromes. Abrupt withdrawal following long-term therapy with SSRIs may result in dizziness, lethargy, headache, and nausea. Fluoxetine is less likely to result in withdrawal symptoms because of its long half-life. 50 Abrupt withdrawal from Tricyclic drugs may produce hypomania, cardiac arrhythmias, and panic attacks. The discontinuation syndrome associated with MAOIs includes confusion, hypomania, and worsening of depressive symptoms. All antidepressant medication should be decreased gradually to prevent withdrawal symptoms (weaning) 51 52 Client/Family Education Patient Continue to take the medication even though the symptoms have not subsided. The therapeutic effect may not be seen for as long as 4 weeks. If after this length of time no improvement is noted, the physician may prescribe a different medication. Use caution when driving or operating dangerous machinery. Drowsiness and dizziness can occur. If these side effects become persistent or interfere with activities of daily living, the client should report them to the physician. Dosage adjustment may be necessary. Not stop taking the drug abruptly. To do so might 53 produce withdrawal symptoms, such as nausea, vertigo, insomnia, headache, malaise, and nightmares. If taking a Tricyclic, use sun-block lotion and wear protective clothing when spending time outdoors. The skin may be sensitive to sunburn. Report occurrence of any of the following symptoms to the physician immediately: sore throat, fever, malaise, yellowish skin, unusual bleeding, easy bruising, persistent nausea/ vomiting, severe headache, rapid heart rate, difficulty urinating, anorexia/weight loss, seizure activity, stiff or sore neck, and chest pain. Rise slowly from a sitting or lying position to prevent a sudden drop in blood pressure. Take frequent sips of water, chew sugarless gum, or suck on hard candy if dry mouth is a problem. Good oral care (frequent brushing, flossing) is very important. Not consume the following foods or medications while taking MAOIs: aged cheese, wine (especially Chianti), beer, chocolate, colas, coffee, tea, sour cream, beef/chicken livers, canned figs, soy sauce, overripe and fermented foods, pickled herring, preserved sausages, yogurt, yeast products, broad beans, cold remedies, diet pills. To do so could cause a life-threatening hypertensive crisis. 54 Avoid smoking while receiving Tricyclic drugs. Smoking increases the metabolism of Tricyclics, requiring an adjustment in dosage to achieve the therapeutic effect. Not drink alcohol while taking antidepressant therapy. These drugs potentiate the effects of each other. Not consume other medications (including over-thecounter medications) without the physician’s approval while receiving antidepressant therapy. Many medications contain substances that, in combination with antidepressant medication, could precipitate a life-threatening hypertensive crisis. 55 Notify the physician immediately if inappropriate or prolonged penile erections occur while taking Trazodone (Desyrel). If the erection persists longer than 1 hour, seek emergency room treatment. This condition is rare, but has occurred in some men who have taken trazodone. If measures are not instituted immediately, impotence can result. Be aware of possible risks of taking antidepressants during pregnancy. Safe use during pregnancy and lactation has not been fully established. These drugs are believed to readily cross the placental barrier; if so, the fetus could experience adverse effects of the drug. Inform the physician immediately if pregnancy occurs, is suspected, or is planned. 56 Be aware of the side effects of antidepressants. Refer to written materials furnished by health care providers for safe self-administration. Carry a card or other identification at all times describing the medications being taken. Outcome Criteria/Evaluation The following criteria may be used for evaluating the 57 effectiveness of therapy with antidepressant medications: The patient has not harmed self. The patient has not experienced injury caused by side effects such as hypertensive crisis, photosensitivity, or serotonin syndrome. The patient exhibits vital signs within normal limits. The patient manifests symptoms of improvement in mood (brighter affect, interaction with others, improvement in hygiene, clear thought and communication patterns). The patient willingly participates in activities and interacts appropriately with others. 58