פסיכיאטריה Flashcards
Schizophrenia - epidemiology
- Frequency in general population is … [1]
- Peak incidence age in men… [2], while in women is…[3]
- Only…[4] present after the age of…[5]
- People born in… [6]
- …[7] socioeconomic levels and …[8] areas have higher tendency
- This is explained by two hypotheses…[9][10]
- More frequent in patients with… [11] personality disorder
- 1%
- 15-25
- 25-35
- Late onset is considered after the age of 45
- 3-10%
- 40
- Rarely presents before the age 10 and after the age 60
- Winter or early spring
- Lower
- Urbanic
- Downward drift hypothesis
- Social causation hypothesis
- Schizotypal
Schizophrenia - biological factors
- Dopamine theory
- Serotonin theory
- Loss of…[3] in the hippocampus
- Related to increase in…[4]
- Decreased concentration of…[5] and…[6] receptors in the caudate, hippocampus and the pre-frontal cortex
- The main one is the dopamine theory
- Decreased activity in the mesocortical pathway, leads to positive symptoms
- Increased activity in the mesolimbic pathway, leads to negative symptoms
- The tuberoinfundibular pathway and the nigrostraital pathway are related only in the way of drugs side effects
- Increased serotonin - leads to both negative and positive symptoms
- GABAgeric
- Glutamate
- Nicotinic
- Muscarinic
Schizophrenia - genetic factors
- Risk of…[1] in sick brother
- Risk of… [2] in child of one sick parent
- Risk of… [3] in child of two sick parents
- Risk of…[4] in DZ twin, while there is risk of…[5] in MZ twin
- According to some studies, …[6] over the age…[7], while making the child is also risk factor for the child to develop schizophrenia
- 8%
- 12%
- 40%
- 12%
- 47%
- Father
- 60
Schizophrenia - Bleuler’s areas of life
- Described as the 4A’s
- Affect
- Ambivalence
- Association
- Autism
- Later, alogia, avolition and anhedonia were added
Schizophrenia - Schnider’s symptoms
- Schnider’s described the characteristics of the hallucinations and the delusions of schizophrenic patients
- Delusions of control - stealing, implanting, control of thoughts
- Auditory hallucinations:
- Own thoughts
- Speaking to the patients
- Criticizing the patient’s behavior
- Somatic hallucinations
Schizophrenia - negative symptoms
- Flat affect
- Decreased emotional range
- Cognitive decrease - blocking, low content
- Decrease in function
- Anhedonia
- Apathy
- Decreased energy
- Abulia
- Alogia
It has been shown that males have higher frequency of negative symptoms
Schizophrenia - cognitive symptoms
- Defect in memory, listening and in the ability to preform tasks
- Defective insight
- Defective abstract thinking
- Disorders in concentration, executive function, working memory and episodic memory
- Considered as the most importnat prognostic factor for later immersion in society
- Tends to have lower IQ scores than the general population
Schizophrenia - diagnosis (DSM-5)
- 2 or more of the following, where the one of the first 3 must be present for a significant time of one month:
- Delusions
- Hallucinations
- Disorganized speech
- Disorganized behavior (catatonic)
- Negative symptoms
- Decrease in function for significant time, since the disease onset
- For at least 6 months
- No affective disorder
- If autism is present - hallucinations or delusion must be present
Schizophrenia - paranoid type
- Abrupts in 20-30 - better prognosis
- Mainly delusions (grandiosity and presecution) and hallucinations
- There is lack of the other symptoms
- No negative symptoms
Schizophrenia - disorganized type
- Before the age of 25 - bad prognosis
- Characterized by disinhibition and predominant negative symptoms
- All the 3 need to found: disorganized speech, disorganized behavior, flat affect
Schizophrenia - catatonic type
- At least 3 of the following:
- Catalepsy, including waxy flexibility
- Motor action without goal
- Extreme negativism
- Wired motor activity
- Echopraxia or echolalia
Schizophrenia - residual type
- Patients after schizophrenic abruption that are left only with the negative symptoms
- In this stage there are no characteristics of psychosis
Schizophrenia - undifferentiated type
- Schizophrenic patients that does not fit to any other subtype
Schizophrenia - post-psychotic depression
- Occurs in…[1] of patients
- …[2] will try to suicide, and …[3] will commit suicide
- Criteria …[4]
- 25%
- 50%
- 10-13%
- 3 conditions:
- Criteria for MDD
- Abrupt in the residual phase of schizophrenia
- Isnt on the background of medications or other organic disease
Schizophrenia - violence risk
- Risk factors
- Emergency treatment
- Treatment
- Higher risk, more common in patients that does not undergoing treatment
- The most important risk factor is past violent episode
- Other risk factors: delusion of persecution, neurological deficits
- Acute treatment: restrication and isolation, sedation with lorazepam 1-2 mg/h
- Anti-psychotics
Schizophrenia - substance addiction
- more then…[1] have substance addiction
- …[2] of the patients are smokers
- …[3] are addicted to alcohol
- …[4] consume cannabis
- …[5] consume cocaine
- 50%
- >90%
- Decrease AE’s of anti-psychotics
- Decrease positive symptoms
- Improves functioning
- 30-50%
- 15-25%
- 5-10%
Schizophrenia - physical co-morbidity
- Life-expectancy is…[1] then the general population
- Co-morbidities include…[2-6]
- Other psychiatric co-morbidities include…[7-9]
- Schizophrenia is found to protective against…[10], with the rate of about…[11] less then the general population
- Shorter
- Obesity
- T2DM
- CVD
- COPD
- HIV
- x1.5-2.0 higher than the general population
- Prevasive developmental disorder (PDD)
- Schizoaffective
- MDD
- Rheumatoid arthritis
- 33%
Schizophrenia - prognosis
- …[1] will be re-admitted within 2 years of the first admission
- Within 5-10 years from the first admission only…[2] get prolonged remission
- …[3] get remission
- …[4] have normal lifestyle
- …[5] have intermidate strength symptoms
- …[6] have significant functional damage for the rest of their life
- …[7] of the patients have bad prognosis
- 40-60%
- 10-20%
- 10-60%
- 20-30%
- 20-30%
- 40-60%
- >50%
Schizophrenia - suicide risk
- The…[1] cause of death in schizophrenic patients
- …[2] try to commit suicide, while…[3] succeed
- Patients with…[4] prognosis have higher risk
- The most significant risk factor is…[5], which is experienced by…[6] of the patients in any point during their life
- Additional risk factors include…[7-9]
- Leading
- 50%
- 10-13%
- Good
- Depressive episode
- 80%
- Young age (although it is found in the bad prognosis criteria)
- Substance abuse
- Delusions
Schizophrenia - pharmacologic treatment
- Drugs…[1]
- Injections are given when…[2]
- …[3] will get full remission
- After psychosis, antipsychotic medications decrease the relapse rate from…[4] to…[5]
- Maximal effect within… [6]
- If there is no effect after…[7], …[8]
- Atypicals are the first option - risperidone or olanzapine
- If typicals are given, perphenazine is given
- There is lack of compliance or in acute stage
- 60-70%
- 50-70%
- 15-25%
- 6-8 weeks
- 4 weeks
- Increase the dose or change of clozapine
Schizophrenia - psychosocial treatment
!!!!!!להוסיף מנקודות
- Social skills - improve relations, eye contact, spontanic interactions, understanding of social interactions
- Family treatment
- CBT - found beneficial for supressing delusions and hallucinations
- Psychotherapy
- Rehabilitation
Schizophrenia - adjuvant therapy
- Lithium - decrease psychotic signs
- Anti-epileptics - decrease violent episodes
- Benzodiazepines
Schizophreniform disorder - diagnosis (DSM-5)
- Criteria A (signs), D (rule-out affective disorder) and E of schizophrenia
- Less then 6 monthes, but more then 1 month
- Specificy with or without good prognosis (good prognosis if 2 or more are present)
- Acute onest (psychoitc feats. within 4 weeks of change of behavior or function)
- Confusion in the time of psychosis
- High function before onset
- No flat affect
Schizophreniform disorder - prognosis
- …[1] will turn to schizophrenia patients
- Higher frequency of…[2]
- 60-80%
- Post-psychotic depression
Schizophreniform disorder - treatment
- Drugs
- Recurrent episodes
- Catatonic symptoms or prominent depression
- Psychothrapy
- Antipsychotics for 3-6 months
- Mood stabilizers - lithium, carbamazepine, valproic acid
- Consider ECT
Schizoaffective disorder - epidemiology
- Lifetime prevalance of…[1]
- More common in…[2] gender
- Age of onset in females is…[3]
- Males tend to show more…[4] signs and…[5]
- In the bipolar type gender division is…[6] males, and…[7] females
- In the depressive type gender division is…[8] males, and…[9] females
- Can have delusion or hallucinations that are… or…[10]
- Important to diagnose periods of…[11] of more then…[12]
- …[13] gene is associated with both schizoaffective disorder and…[14] disorder
- 0.5-0.8%
- Female
- Later
- Anti-social
- Flat affect
- 50%
- 50%
- 33%
- 66%
- Mood congurent or mood incongruent
- Delusions or hallucinations
- 2 weeks
- DISC1
- Bipolar
Schizoaffective disorder - diagnosis (DSM-5)
- During the disease period - depressive episode/manic episode/mixed episode together with criteria A of schizophrenia
- At least two weeks of only delusions/hallucinations
- Affective symptoms are present in most of the time of the disease period
- Rule out drugs or general medical condition
Schizoaffective disorder - treatment
- Drugs
- In manic episode
- Refractory mania
- Depressive episode
- Mood stabilizer, sometimes with combination of antipsychotics
- Increase the dose of mood stablizers
- Consider ECT
- SSRI’s
Carbamazepine is more efficient than lithium in the bipolar subtype
Schizoaffetive disorder - prognosis
- Better prognosis than…[1] patients
- Worse prognosis than…[2] patients
- Multiple…[3] signs are bad prognostic indicators
- Schizophrenia
- Mood disorder
- Schizophrenic
Delusional disorder - epidemiology
- Prevalance of…[1]
- Avarage abruption age of…[2], and more common in…[3]
- More common in…[4] socioeconomic state
- During the years, less then…[5] will diagnosed with schizophrenia, and less then…[6] will be diagnoised with mood disorder
- 0.2-0.3%
- 40
- Females
- Low
- 25%
- 10%
Delusional disorder - risk factors
- …[1] age
- …[2] that can be physical, sensory or social
- …[3]
- …[4] socioeconomic state
- Old
- Isolation
- Family history
- Low
Delusional disorder - diagnosis (DSM-5)
- Delusions for at least a month
- Doesnt fulfill criteria A for schizophrenia
- No functional decrease, except the consequences of the delusional thoughts
- If there were affective states with the delusions, their length was short in relation to the delusions
- No drugs or other GMC
Sepcify the delusion kind
Delusional disorder - prognosis
- …[1] recover, …[2] get better, …[3] with no change
- Good prognosis when starts at…[4] age
- Good prognostic indicators include:
- …[5] pre-morbid condition
- …[6] gender
- …[7] onset
- Onset before the age of…[8]
- …[9] duration
- …[10], …[11] and…[12] delusions
- 50%
- 20%
- 30%
- Young
- Good
- Female
- Acute
- 30
- Short
- Erotomanic
- Persecution
- Somatic
Delusional disorder - treatment
- Treatment of choice
- If there is no change within…[2], …[3]
- Failure of treatment, consider…[4] or…[5]
- Psychotherapy
- Antipsychotics with gradually increased dose
- 6 weeks
- Change to other antipsychotic
- Mood stabilizers
- Anti-depressents
Brief psychotic disorder - definition and epidemiology
- Definition
- More common in…[2] age, …[3]
- …[4] countries
- …[5] socioeconomic states
- Psychotic episode that lasts less then month and more then a day, and after which, there is full recovery and return to the premorbid function
- Young
- Females
- Developing
- Low
Brief psychotic disorder - diagnosis (DSM-5)
- At least one of:
- Delusions
- Hallucinations
- Disorganized speech
- Disorganized behavior
- One day - one month, will full return to premorbid function
- Cannot be explained by other organic of psychiatric conditions
Specify if there is a stressor: brief reactive psychosis/no stressor/postpartum
Brief psychotic diorder - prognosis
- …[1] without major psychiatric disorders thoughout life
- About…[2] will develop chronic psychiatric disease
- 50-80%
- 50%
לפי נקודות: לרוב לא יהיו מחלות פסיכיאטריות לאחר אירוע אחד
Brief psychotic disorder - treatment
- Drugs
- Psychotherapy
- High potency antipsychotics (haloperidol) in low doses and benzodiazepines
Post partum psychosis
- …[1] for each 1000 deliveries
- In…[2] - the first child
- …[3] had nonpsychiatric perinatal complications
- More then…[4] have family of mood disorder
- Symptoms have to appear…[5] after delivery
- Treatment of choice [6]
- 1/2
- 50%
- 50%
- 50%
- 4 months
- Anti-depressents and lithium, sometimes in combination with antipsychotics
Catatonia - epidemiology
- …[1] related to mood disorders
- …[2] associated with schizophrenia
- Specifiers
- 25-50% (בסבב ולדימיר אמר יותר מחמישים אחוז)
- 10%
- 3 types:
- Associated with another mental disorder
- Due to another medical condition
- Unspecified
Catatonia - diagnosis (DSM-5)
- At least 3 of the above:
- Catalepsy
- Waxy flexibility
- Stupor
- Agitation
- Mutism
- Posturing
- Mannerism
- Negativism
- Stereotypies
- Grimcing
- Echolalia
- Echopraxia
- Rigidity (not sure!)
Catatonia - treatment
- Treatment in…[1]
- Important to take care of…[2]
- Options for treatment include:
- …[3] are used, …[4] is the gold standard
- …[5] can also be used
- …[6] can also be used
- …[3] are used, …[4] is the gold standard
- Hospitalization
- Feeding and hydration. IV or NG tube can be used
- Benzodiazepines
- Lorazepam
- Diazepam
- ECT
Affective disorders - biologic etiology
- Norepinephrine…[1]
- Serotonin…[2]
- Dopamine…[3]
- Endocrine:
- In…[4] of MDD patients there is pathologic…[5] and
- …[6] function disorders
- Decreased…[7]
- Disturbance in…[8]
- Decreased….[9] and…[10]
- Decreased levels are associated with depression
- The most associated neurotransmitter - decreased levels
- High levels of dopamine and in mania and low levels in depression
- 50%
- Dexamethasone supression test
- Thyroid
- Growth hormone
- Melatonin
- Sex hormones
- Prolactin
Affective disorders - genetic factors
- Child to a parent with mood disorder have…[1] risk to develop affective disorder
- If there are 2 parents…[2] risk
- MZ correlation…[3]
- DZ from the same sex correlation…[4]
- For depression:
- Have…[5] times risk if there is depressed relative of first degree
- …[6] MZ correspondence
- For bipolar disorder:
- For first degree relative have…[7] times risk for an affective disorder
- To…[8] of bipolar I patients have at least one parent with affective disorder
- MZ correspondece is…[9]
- 10-25%
- 20-50%
- 70-90%
- 10-35%
- 2-10
- 50%
- 8-18
- 50%
- 33-90%
MDD - epidemiology
- Life time prevalance is…[1]
- …[2] times more common in…[3]
- Avarage abruption age is…[4]
- …[5] of the patinets have their first episode before the age of…[6]
- More common in…[7]
- Is not related to…[8]
- 17%
- Twice
- Females
- 40
- 50%
- 40
- Singles, separated or widowed
- Socioeconomic levels
MDD - diagnosis (DSM-5)
- At least 5/9, in which 1 or 2 must be present. All the symptoms must be present for at least 2 weeks:
- Depressed mood, most of the day
- Anhedonia
- Change in apetite
- Sleep disturbances
- Psychomotor retardation
- Loss of energy
- Guilt
- Decrease in concentration
- Suicidal ideation
- The symptoms cause significant distress or decrease in function
- Rule out substance abuse or GMC
- Isnt explained better with other psychiartic disorders
- Rule out manic or hypomanic episode in the past
MDD - clinical features
- 50% of the patients will…[1]
- 97% report…[2]
- 90% show signs of…[3]
- 50% report…[4]
- As the disease progresses, patients tend to have…[5] episodes with…[6] duration
- …[7] consider suicide, while…[8] try to suicide
- Deny their symptoms
- Loss of energy
- Anxiety
- Diurnal variation
- More frequent
- Longer
- 66%
- 10-15%
MDD - co-morbidity
- …[1-4] are the most frequent co-morbidities
- The highest rate of associated co-morbidity is…[5], with rate of about…[6]
- …[7] is more frequent with males that have affective disorder
- …[8] are more frequent with females that have affective disorder
- MDD in males is associated with…[9-12]
- MDD in females is associated with…[13-16]
- Alcoholism
- OCD
- Social anxiety disorder
- Panic disorder
- Anxiety disorder
- 90%
- Substance abuse
- Eating disorders and anxiety
- ADHD
- Anxiety disorders
- Alcohol dependence
- Dysthymia
- Schizophrenia
- Other psychotic disorders
- Bipolar disorder
- Unipolar disorder
MDD - specifiers
- With:
- Anxious distress
- Psychotic features
- Melancholic features
- Atypical features
- Mood congruent psychotic feats.
- Mood incongruent psychotic feats.
- Catatonia
- Peripartum onset
- Seasonal pattern
MDD - melancholic specifier
- Lack of mood reactivity with at least 3:
- Depressed mood
- Worse in the morning
- Agitation
- Early awakening (2h before)
- Decreased weight
- Severe feeling of guilt
MDD - atypical specifier
- Mood reactivity with at least 2 of the following:
- Increased appetite
- Hypersomnia
- Leaden paralysis
- Year long pattern of social anxiety
- These patients tend to be:
- Younger at onset
- Severe psychomotor disturbance
- Higher co-morbidity with anxiety disorders, substance abuse, dependency and somatization
MDD - treatment
Mild-moderate MDD
- Start with…[1] for…[2] weeks
- Partial response - augmentation with…[3-5]
- No response - we need to…[6] to…[7,8]
- Treatment failure is considered as lack of response after…[9] of adequate dosage
- Anti-depressents effect starts within…[10]
- For psychotic depression the treatment is…[11]
- For atypical depression…[12] or…[13] can be given
- SSRI’s can be given if pregnancy with the exception of…[14]
- Of the acute phase, maintenance treatment for at least…[15] is given
- SSRI
- 3-4
- Lithium
- Thyroid hormones
- Buproprion
- Change the drug
- Another SSRI
- SNRI
- 4 weeks
- 2-4 weeks
- Anti-psychotic and anti-depressent
- SSRI
- Buproprion
- Paroxetine
- 6 months
MDD - prognosis
- …[1] will have chronic depression (2 years)
- …[2] with initial diagnosis of MDD will develop manic episode within…[3] after. The avarage age for switch is…[4]
- After first episode the recurrence risk is…[5] within 6 months, while in the first 2 years is…[6], and in the next 5 years is…[7]
- For…[8] will have response to therapy, from which…[9] will have total remission.
- …[10] will not have any response to therapy
- During 20 years the avarage number of depressive episodes is…[11]
- Duration of un-treated episode is…[12]
- After first admission only…[13] will heal
- The risk for complete resolution…[14] with further admissions
- Stopping the drug within…[15] of its initiation, almost always leads to relapse
- 5-10%
- 5-10%
- 6-10 years
- 32
- 25%
- 30-50%
- 50-75%
- 70%
- 30%
- 30%
- 5-6
- 6-13 months
- 50%
- Decreases
- 3 months
Bipolar disorders - epidemiology
- In…[1] of population
- Avarage onset age is…[2]
- Gender predominance is…[3], and manic episodes are more frequent in…[4]
- More common in…[5]
- More common in…[6] socioeconomic state
- 1%
- 30
- Equal
- Males
- Singles, divorced
- High
Manic episode - diagnosis (DSM-5)
- Period of abnormaly elevated mood with goal direct activity that is found for at least 1 week, for most of the day, almost everyday (or requires hospitalization)
- In the same week at least 3/7
- Distractibility
- Insomnia
- Grandiosity
- Flight of ideas
- Activity increase
- Pressured speech
- Thoughtlessness (activity that have high risk or give a lot of pleasure)
- Significant functional disfunction
- Rule out substance abuse or GMC
Bipolar I disorder - clinical features
- The disease tends to start with…[1] episodes
- In…[2] of the females, and in…[3] of the males
- Until the first manic episode there will be about…[4] depressive episodes
- Only…[5] experience only manic episodes
- Manic episode tends to start…[6] and last for…[7]
- If untreated it can last up tp…[8]
- As the disease progresses the remission…[9]
- After 5 manic episodes the remission period stabilses on…[10]
- During his life, patient will have about…[11] manic episodes
- In relation to MDD there is higher rate of co-morbidity with…[12] and…[13]
- Higher rate of…[14] then in psychotic disorders
- Depressive
- 70%
- 67%
- 2-4
- 10-20%
- Rapidly
- Weeks
- 3 months
- Shortens
- 6-9 months
- 9
- Substance abuse
- Anxiety
- Catatonia
Bipolar I disorder - rapid cycling
- More common in females
- Associated with hypothyrodisim
- At least 4 episodes of mania, hypomania, depression or mixed within one year
- Between each episode there is at least 2 months of remission or one episode immediately changes to another
Bipolar I disorder - treatment
- Acute mania
- Depressive episode
- Prophylaxis
- Rapid cycling patients
- Antipsychotics (new generation) and mood stabilizers
- Lithium, carbamazepine, valproate, clonazepam, antipsychotics
- Anti-depressive drug, and due to risk for manic switch there is a need to add mood stabilizer
- Olanzapine + fluoxetine is effient combination that does not lead to manic switch
- For resistant patients - lamotrigine or ziprasedone
- 3 options:
- Lithium
- Valproic acid
- Cabamazepine
- Lamotrigine is more efficient in treatment and prevention of depressive episodes
- Positive outcomes with buproprion or nimodipine
Biploar I disorder - prognosis
- …[1] prognosis then MDD patients
- …[2] there is no recurrence of the disease
- …[3] will have manic episode within 2 years of the first episode
- …[4] will have chronic disease
- In the long term
- …[5] are in good state
- …[6] in good state with multiple relapses
- …[7] in partial remission
- …[8] are chornically ill
- Only…[9] have good control of the disease with lithium
- Bad prognostic indicators include:
- …[10] pre-morbid working status
- …[11] abuse
- …[12] features
- …[13] signs during the episodes
- …[14] signs between the episodes
- …[15] gender
- Worse
- 7%
- 50%
- 40%
- 15%
- 45%
- 30%
- 10%
- 50-60%
- Bad
- Alcohol
- Psychotic
- Depressive
- Depressive
- Male
Hypomanic episode - diagnosis (DSM-5)
- Abnormaly elevated mood with goal direct activity, for at least 4 consecutive days, for most of the day, almost everyday
- 3/7 symptoms (such as manic episode DIG FAST)
- Decrease in function in lesser severity
- Observable by others
- Not severe enough to cause decrease in fucntion in social/work and does not nessciate hospitalization
- Rule out substance abuse and GMC
Dysthymic disorder - epidemiology
- Prevalance is…[1]
- Gender prevalance is..[2] and in…[3] status,
- …[4] income
- Higher prevalance in patients with first degree relative diagnosed with…[5]
- Usually starts in…[6]
- 5-6%
- Equal
- Single
- Low
- MDD
- Childhood/adolescence
Dysthymic disorder - diagnosis (DSM-5)
- Depressed mood for most of the day, indicated by the patient or by other, for at least 2 years
- Presence while depressed of at least 2:
- Appetite changes
- Sleep changes
- Low energy
- Low self-esteem
- Poor concentration
- Hopelessness
- During the period, there was no period of more then 2 months without the symptoms
- No MDD (?)
- No manic, hypomanic, mixed or cyclothymic disorder
- Not part of other psychotic disturbance
- No substance abuse or GMC
- Distress and decrease in function
Dysthymic disorder - progression and prognosis
- …[1] develop symptoms before the age of…[2]
- …[3] will develop MDD
- …[4] will develop bipolar II
- Less then…[5] will develop bipolar I
- Only…[6] will be in remission one year after the diagnosis
- …[7] will never get full recovery
- 50%
- 25
- 20%
- 15%
- 5%
- 10-15%
- 25%
Cyclothymic disorder - epidemiology
- Prevalance is…[1]
- Often is comined with…[2]
- The ratio of female:male is…[3]
- …[4] is with onset in the ages of…[5]
- Often in the patient’s family there is a history of…[6]
- …[7] have family with bipolar I disorder
- 1%
- Borderline personality disorder
- 3:2
- 50-75%
- 15-25
- Substance abuse
- 30%
Cyclothymic disorder - diagnosis (DSM-5)
- Several periods of hypomania and several periods of depression that is not MDD, for at least 2 years
- No period of more then 2 months without the symptoms
- No episodes of MDD, mania or mixed
- Isnt part of other psychiatric disorder
- No substance abuse or GMC
- Distress and decrease in function
Cyclothymic disorder - progression and prognosis
- Symptoms start in…[1] manner, in the age of…[2]
- About…[3] will develop MDD, which will lead to diagnosis of bipolar II disorder
- Progressive
- Early 20’s
- 33%
Cyclothymic disorder - treatment
- Drugs
- Psycho-social treatment
- First line is mood stabilizers.
- Anti-depressive treatment should be give carefully, due to the fact that 40-50% of the patients will have manic or hypomanic episodes percipitated by this treatment
Anxiety - etiology
- Biologic etiology:
- Increase in…[1]
- Decrease in…[2] and…[3] of sleep
- Decreased…[4] levels
- Increased activity of…[5] and…[6] neurotransmitters
- Increased activity in…[7-9]
- Psychoanalytic:
- In childhood, fear of…[10,11]
- Learning:
- Stress or chronic frustration leads to formation of…[12]
- Mimicing…[13]
- Maladaptive pattern of…[14]
- Genetic:
- …[15] that are diagnosed with anxiety disorder have first degree relative with the same diagnosis
- Autonomic, sympathetic tone
- REM latency
- 4th step
- GABA
- Serotonin
- Dopamine
- Temporal cortex
- Locus ceruleus
- Amygdala
- Loss of loved object
- Physical injury
- Conditioned reaction
- Parents
- Cognitive thinking
- 50%
Panic disorder - epidemiology
- Prevalence of PD…[1], while of panic attacks is…[2]
- …[3] times more common in…[4] gender
- Peak of incidence is in the age of…[5]
- The anxiety disorder that have the strongest…[6] component
- Identified triggers include…[7] and…[8]
- 25% have focal slowing in the…[9] lobe
- Kids to parents with anxiety disorder have…[10] times higher risk for developing a disorder
- 1-4%
- 3-5.6%
- 2-3
- Female
- 25
- Genetic
- Divorce
- Separation
- Temporal
- 4-8
Panic attack - criteria (DSM-5)
- Time period of intense fear of restlessnesss, during this time there is at least 4 of the following symptoms, that develop rapidly and reach peak in 10 minutes:
- Palpitations
- Sweating
- Shaking
- Dyspnea
- Feelings of choking
- Chest discomfort
- Nausea
- Dizziness
- Chills or heat sensations
- Parasthesias
- Derealization/depersonalization
- Fear of losing control
- Fear of dying
Panic disorder - diagnosis (DSM-5)
- Recurrent, unexpected panic attacks
- At least 1 of the attacks has been followed by at least 1 month of 1 or both of the following:
- Persistent concern about panic attacks of their consequences
- Significant maladaptive behavior related to the attacks
- Not due to substance abuse or GMC
- Not better explained by other mental disorder
Panic disorder - co-morbidities
- …[1] have psychiatric co-morbidity
- 33% have…[2], before presentation
- 66% experience PA…[3] or…[4], their…[5] diagnosis
- 15% have…[6] or…[7]
- 2-20% have…[8]
- 15-30% have…[9]
- 20% have…[10]
- Another co-morbidities include…[11-13]
- 91%
- MDD
- During
- After
- MDD
- SAD
- Social phobia
- Specific phobia
- GAD
- PTSD
- Ilness anxiety disorder
- Personality disorder
- Substance abuse
Panic disorder - progression and prognosis
- …[1] and…[2] progression
- After treatment:
- …[3] will be without symptoms
- …[4] will have some symptoms
- …[5] will have active symptoms
- …[6] complicates the disease in…[7]
- High risk for…[8]
- Substance and alcohol abuse in…[9]
- Patients may develop…[10]
- …[11] pre-morbid condition and…[12] duration of symptoms indicate good prognosis
- Chronic
- Variable
- 30-40%
- 50%
- 10-20%
- MDD
- 40-80%
- Suicide
- 20-40%
- Good
- Short
Panic disorder - treatment
- CBT
- Drugs
- Conservative approach
- 2nd line
- Treatment failure
- More efficient in inducing long term remission
- Paroxetine and alprazolam
- Start with SSRI (paroxetine) and if needed also BZD
- TCA (impramine/clomipramine) or MAOi
- When there is no reaction to one drug family. It is possible to add mood stablizer
Agoraphobia - epidemiology
- Prevalence of…[1]
- About…[2] also have…[3]
- Most of the times it is realted to…[4]
- Prognosis is better when it is combined with…[5]
- 0.6-6%
- 75%
- Panic disorder
- Traumatic life event
- Panic disorder
Agoraphobia - diagnosis (DSM-5)
- Marked fear/anxiety about 2 of the following:
- Public transportation
- Open spaces
- Enclosed spaces
- Stading in line/being in crowd
- Being outside of home
- Fear/avoidance due to the fear that if the patient will develop panic symptoms, there will be no way to escape
- Agoraphobic situations provoke fear/anxiety
- Agoraphobic situations are actively avoided
- more then 6 months
- Fear/anxiety are out of proportion to the danger imposed
- Distress or decrease in function
- If another medical condition is present fear/anxiety/avoidance is clearly excessive
- Not due to another mental disorder
Agoraphobia - treatment
- Psychotherapy
- Drugs
- Supportive, CBT
- 3 options:
- Benzodiazepines
- SSRI’s
- TCA’s
The 5 general features of phobia
- Anxiety and stress
- Provoked
- Ego-dystonic
- Avoidance
- Anticipation
Specific phobia - epidemiology
- Prevalence of…[1]
- The most common disorder in…[2]
- The 2nd most common disorder in…[3]
- In the ages of…[4] the most common phobias are injections, blood, injury, nature
- While in the age of…[5] the most common phobias are of situations and cicumstances
- It is…[6] more common in…[7]
- In…[8] there is co-morbidity with…[9],…[10] and…[11]
- 10%
- Females
- Males
- 5-9
- 20’s
- Twice
- Females
- 50-80%
- Depression
- Anxiety
- Substance abuse
Specific phobia - diagnosis (DSM-5)
- Marked fear/anxiety aboud specific object/situation
- Almost always provokes immediate fear/anxiety
- Phobic object is actively avoided or endured with intesnse fear
- Fear/anxiety is out or proportion to the actual danger
- Fear/anxiety/avoidance is at least 6 months
- Significant distress or decrease in function
- Not better explained by other mental disorder
Specify: type of phobia
Specific phobia - treatment
- CBT
- Psychotherapy
- Drugs
- Most effective - systemic desensitization, flooding, intensive exposure
- Insight oriented
- Benzodiazepines, beta blockers
Social anxiety disorder - epidemiology
- Also termed social phobia
- Prevalence of…[1]
- Peak incidence is in…[2]
- More common in…[3]
- Co-morbidity with other…[4] disorders and also with…[5] disorders
- …[6] of the patients diagnosed with…[7]
- Also, co-morbidity with…[8]
- There is high association with…[9]
- 3-13%
- Teens
- Females
- Anxiety
- Affective
- 33%
- MDD
- Bulemia nervosa
- Substance abuse
Social anxiety disorder - diagnosis (DSM-5)
- Marked fear/anxiety about 1 or more social situations, in which the individual is exposed to possible scrutiny by others
- Fear that he/she will act in a way that will be negatively evaluated
- Social situations almost always provoke fear/anxiety
- Social situations are avoided
- Fear/anxiety is out of proportion
- For 6 months or more
- Distress or decrease in function
- Not due to drugs of GMC
- Not better explained by other mental disorders
- If other medical condition the fear/anxiety/avoidance is clrealy unrelated or excessive
Specify: performance only
Social anxiety disorder - treatment
- Psychotherapy
- Pharmacotherapy
- CBT, social skill training
- First line are SSRI’s
- Also venlafaxine, BZD’s or buspirone
- In severe cases - phenelzine (MAOi)
- SSRI effect starts later than MDD treatment - within 12-14 weeks
- For performance disorders - BB’s or short/intermediate BZD’s can be given
GAD - epidemiology
- Prevalence of…[1]
- …[2] more common in…[3]
- …[4] of …[5] are also effected
- Onset is usually in…[6]
- 5%
- Twice
- Females
- 25%
- First degree relatives
- Adolescense/early adulthood
GAD - diagnosis (DSM-5)
- Excessive anxiety and worry occuring at least 6 months abount number of activities
- The individual finds it difficult to control the worry
- Anxiety and worry are associated with at least 3 of the following:
- Restlessnesss
- Easily fatigued
- Difficulty concentrating
- Irritability
- Muscle tension
- Sleep disturbances
- Significant distress or decrease in function
- Not due to substance or abuse or GMC
- Not better explained by another mental disorder
GAD - co-morbidity
- The mental disroder that have the highest rate with other mental disorders, this occurs in…[1] of the patients
- Usually…[2],…[3],…[4] or…[5]
- 50-90%
- Social phobia
- Specific phobia
- Panic disorder
- Depressive disorder
GAD - treatment
- Psychotherapy
- Drugs
- CBT - insight oriented, and supprotive therapy
- Few options:
- Benzodiazepines - 75% response. 2-6 weeks therapy
- SSRI - to patinets with comorbid depression (not fluoxetine, because it increases anxiety)
- Combine with BZD
- 60-80% have relapse in the first year after stopping the therapy
- Buspirone - more effective in reducing congnitive symptoms
- SNRI (venlafaxine) - good for patients with insomnia, poor concentration, distress and muscle rigidity
Substance induced anxiety disorder - diagnosis (DSM-5)
- Clinical signs of anxiety or panic attack
- There is clues from history taking, clinical examination and lab:
- Symptoms developed during/immediatley after/during posioning/rehab.
- The drug is known to induce anxiety
- Rule out another mental etiology:
- Symptoms appeard before the use of drug
- Present at least 1 month after stoping the drug
- Clues of mental disroder that is not related to the drug
- Is not present only in delirium
- Significant distress or decrease in function
Anxiety disorder due to another medical condition - diagnosis (DSM-5)
- Clinical signs of anxiety or panic attack
- There are clues in history/physical examination/lab that the disturbance is directly due to another medical condition
- Rule out another mental disorder
- Is not only in the time of delirium
- Significant distress or decrease in function
OCD - epidemiology
- …[1] of the general population
- …[2] gender
- The avarage age of onset is…[3]
- In males the age is…[4], while in females…[5]
- More commmon in…[6], and in…[7] skinned
- The…[8] most common frequent disorder
- 2-3%
- F=M
- In adolescents M>F
- 20
- 19
- 22
- Singles
- White
- 4th
OCD - genetic factors
- Is about…[1] of the etiology
- Relative of sick person have…[2] of having the disease, which is…[3] times more of the general population
- 40%
- 35%
- 3-5
OCD - clinical features
- In more than…[1] of the patients the onset will be…[2]
- …[3] will present after…[4]
- The most common obessions [5]
- The most common compulsions [6]
- Decrease levels of…[7]
- Increased levels of…[8]
- There is…[9] of the…[10], but with increased metabolism
- Also increased metabolism in the…[11] lobes,…[12] and…[13]
- 50%
- Sudden
- 50-70%
- Stressful life event
- זיהום, ספק פתולוגי, סומאטי, סימטריה, אגרסיה, מיניות
- בדיקה, שטיפה, ספירה, צורך לשאול, סימטריה, אגרנות
- Serotonin (low levels in the CSF)
- Norepinephrine
- Atrophy
- Caudate nucleus
- Frontal
- Cyngulum
- Thalamus
OCD - diagnosis (DSM-5)
- Presence of obsession, compulsions or both:
- Obsession defined by both conditions:
- Recurrent and persistent behaviors that are intrusive and unwated and cause anxiety or distress
- The patient tries to ignore or supress the behaviors or to neutralize them
- Compulsions defined by both conditions:
- Repetitive acts that the patient feel drive to preform in response to obsession
- The acts are aimed at preventing/reducing anxiety or distress; however, this behviors are not connected in a realistic way with what designed to prevent
- Obsession defined by both conditions:
- These are time consuming or cause distress or decrease function
- Not due to substance abuse or GMC
- Is not better explained by another mental disorder
- Specifiers:
- with good/fair/poor/absent insight/delusional beliefs.
- Tic-related
OCD - comorbidity
- The prevalence of MDD is…[1]
- …[2] show social phobia
- …[3] have tic disorder
- Tourette’s syndrome…[4]
- In schizophrenic patients the prevalence of OCD is…[5]
- 67%
- 25%
- 20-30%
- 5-7%
- 12%
OCD - prognosis
- In more then…[1] appears abruptly, in…[2] it appears after stressor
- …[3] will show significant improvement in symptoms
- …[4] will show some kind of improvment
- …[5] will have chronic condition
- Favourable prognostic factors…[6-8]
- Poor prognostic factors…[9-16]
- …[17] does not influence the prognosis
- 50%
- 50-70%
- 20-30%
- 40-50%
- 20-40%
- Favorable factors:
- Good pre-morbid condition
- Onset after stressor
- Episodic symptoms
- Poor factors:
- Obligation to compulsions
- Childhood onset
- Bizzare compulsions
- Hospitalization
- Concurrent MDD
- Delusional beliefs
- Concurrent personality disorder (schizotypal)
- Overvalued ideas
- Obessions
OCD - adult treatment
- CBT
- Pharmacologic
- Augmentation
- ECT
- Have at least the same effect as pharmacologic treatment, thus, accounts for treatment of choice
- Exposure and reaction prevention
- Thought stopping
- Few options:
- SSRI’s are the first line - given in doses of 3-4 times more then in depression, ant strat to influence with 6-8 weeks
- Clomipramine (can also be used as first line)
- Augmentation with stabilizers or atypical anti-psychotics in low dose, MAOi’s, buspirone, SNRI’s
- At least 50-70% will respond to medications
- To fully resistent disease
OCD - kid treatment
- Pharmacotherapy
- First response
- Side effects
- Mainly SSRI’s
- Sertraline - from the age 6
- Fluoxetine - form the age of 7
- Fluvoxamine - from the age of 8
- Citalopram can also be used
- The onset of the effect starts from 8-12 weeks
- Nausea, agitation, tremor, insomnia, fatiuge
BDD - epidemiology
- Prevalence of…[1]
- More in…[2] gender
- Disorder shows at the age…[3]
- More common in…[4]
- 2.4%
- Female
- 15-30
- Singles
BDD - clinical features
- Etiology appears to be realted to…[1]
- The main complaint is…[2] with rate of…[3]
- Followed by…[4] and…[5] with…[6] each
- Followed by…[7]
- …[8] of the patients will isolte themselves at home
- Up to…[9] will try to commit suicide
- Lack of serotonin
- Hair
- 63%
- Skin
- Nose
- 50%
- Eyes
- 33%
- 20%
BDD - diagnosis (DSM-5)
- Preoccupation with precived physical defect, that others cannot notice
- Repetitive behaviors or mental acts as response to this precived defect
- Significant distress or decrease in function
- Not due to eating disorder
- Specify:
- Good/fair/poor/absent/delusional beliefs
- With muscle dysphoria
BDD - comorbidity
- More then…[1] expreinced episodes of…[2]
- …[3] had anxiety disorder
- …[4] had psychotic disorder
- 90%
- MDD
- 70%
- 30%
BDD - treatment
- CBT
- Drugs
- Augmentation
- The most effective therapy
- Serotonergic products such as SSRI’s, or clomipramine (TCA) are helpful in 50% of the time
- Augmentation of SSRI with clomipramine, buspirone, lithium, methylphenidate or anti-psychotics
Hoarding disorder - epidemiology and characteristics
- Prevalence of…[1]
- …[2] gender
- More common in…[3]
- …[4] usually causes onset or exacerbation
- …[5] of OCD patients
- …[6] have ADHD
- Familial predisposition of…[7]
- Ego-…[8]
- Treatment is…[9]
- Symptoms can be…[10] at onset
- Complete remission is…[11]
- Characterized by…[12] referral to treatment
- 2-5%
- F=M
- Singles
- Traumatic life event
- 30%
- 20%
- 80%
- Syntonic
- Resistent
- Fluctuant
- Rare
- Late
Hoarding disorder - diagnosis (DSM-5)
- Presistent difficulty in parting of possessions
- Due to the need to preserve, and distress while discarding
- Items fill and block the living areas
- Hoarding cause distress or decrease in function
- Not due to other medical disease
- Is not better explained by other mental disorder
- Specify:
- Good/fair/poor/absent insight/delusional beliefs
- With excessive acquisition
Trichotillomania - epidemiology
- Prevalence of…[1]
- More common in…[2] gender
- More common in…[3] age
- …[4] chew or swallow their hair
- Can be…[5] or…[6]
- Good prognosis is associated with…[7] age at onset
- 1-2%
- Female
- Adolescence
- 35-40%
- Automatic
- Focused
- Young!!
Trichotillomania - diagnosis (DSM-5)
- Recurrent hair pulling or hair loss
- Recurrent attempts to stop hair pulling
- Causes distress or imapirment of function
- No due to other medical condition
- Is not better explained by other psychiatric disorder
Trichotillomania - treatment
- Psychotherapy
- Drugs
- Hypnosis
- Behavioral therapy
- Topical steroids, SSRI’s which can be augmented with pimozide
Excoriation - epidemiology and characteristics
- Prevalence of…[1]
- Onset is usually at…[2]
- More common in…[3] gender
- …[4] have suicidal ideations, while…[5] attempt suicide
- Treatment is…[6]
- 1-5%
- Adolescence
- Female
- 15%
- 12%
- Resistent
Excoriation - diagnosis (DSM-5)
- Skin picking resulting in lesions
- Recurrent attepmts to stop skin picking
- Symptoms cause distress and impairment in function
- Not due to substance abuse
- Not due to other mental disorder
PTSD - epidemiology
- Life time risk is…[1]
- Life time prevalence is…[2]
- …[3] will have sub-clinical symptoms
- Females…[4], males…[5]
- Most commonly in…[6],…[7], and in…[8] socioeconomic level
- …[9] have at least 2 other mental disorders
- 9-15%
- 8%
- 5-15%
- 10-12%
- 5-6%
- Young adults
- Singles
- Low
- 66%
PTSD - diagnosis (DSM-5)
- Exposure to life theratening situation
- Directly
- Witnessing
- Learning that the event occured to close person
- Extreme exposure to aversive detalis (work related)
- At least 1 intrusive symptom:
- Intrusive distressing memories
- Recurrent distressing dreams
- Dissociative reactions (flashbacks)
- Psychological response when exposed to stimuli
- Physiological response when exposed to stimuli
- At least 1 avoidance symptom:
- To avoid distressing memories
- To avoid extrenal reminders
- At least 2 negative alterations in cognitions and mood:
- Inability to remember important aspect of the event
- Exaggerated negative beliefs about self/others/world
- Distorted cognitions about the cause or consequences
- Negative emotional state
- Diminished interest
- Feelings of detachment
- inability to experience positive symptoms
- At least 2 alterations in arousal and reactivity:
- Irritable behavior and angry outbursts
- Self destructive behavior
- Hypervigilance
- Exaggerated stratle response
- Problems with concentration
- Sleep disturbances
- Duration is more then 1 month
- Significant distress or decrease in function
- Not due to substance abuse
PTSD - psychotherapy
- The main treatment of PTSD
- Prolonged exposure - impolsive therapy, systemic desensitization
- Stress management -relaxation
- EMDR
- Group and family therapy
- Dynamic psychotherapy
PTSD - pharmacologic therapy
- SSRI’s - first line. Improve all the kinds of symptoms
- Other anti-depressents - buspirone, TCA’s, MAOi, trazodone
- Mood stabilizers - anti agressive
- Anti-psychotics - when there is psychosis or vivid flashbacks
- Topiramate - can help to flashbacks
- Sleeping pills - not recommended but if needed, not benzo, because they lead to vivid dreams
- When benzo’s given acutely they increase the risk for PTSD
- Low dose anti-cholinergics are more helpful
PTSD - prognosis
- Without management:
- …[1] will heal completly
- …[2] will have mild symptoms
- …[3] will have intermediate symptoms
- …[4] will have severe symptoms
- After one year of therapy,…[5] will heal completly
- 30%
- 40%
- 20%
- 10%
- 50%
Acute stress disorder - diagnosis (DSM-5)
- Exposure to life theratening event:
- Directly
- Witnessing
- Learning that the event occured to close person
- Repeated exposure to aversive detalis (work related)
- Presence of 9 or more, from any of the following categories:
- Intrusive symptoms:
- Intrusive distressing memories
- Distressing dreams
- Dissociative reactions (flashbacks)
- Psycological or physiological reactions in response to stimuli
- Negative mood
- Inability to experice positive emotions
- Dissociative symptoms:
- Altered sense of the reality of the surrounding/self
- Inability to remember important aspects of the event
- Avoidance symptoms:
- Avoid distressing memories
- Avoid external reminders
- Arousal symptoms:
- Sleep disturbance
- Irritable behavior
- Hypervigilance
- Problems with concentration
- Exaggereted stratle response
- Intrusive symptoms:
- Duration between 3 days - 1 month
- Significant distress or decrease in function
- Not due to substance abuse, other mental disorder or GMC
Adjustment disorders - epidemiology
- Prevalence of…[1]
- …[2] more common in…[3]
- …[4] of generally admitted patients, and in…[5] admitted psychiatric patients
- Can appear in any age, but most commonly in…[6]
- More common in…[7]
- 2-8%
- Twice
- Females
- 5%
- 10%
- Adolescense
- Singles
Adjustment disorders - diagnosis (DSM-5)
- Development of emotional/behavioral symptoms in response to identifiable stressor occuring within 3 month of its onset
- Symptoms are clinically significant - at least 1 of the following:
- Distress that is out of proportion to the stressor
- Significant impairment in fucntion
- The disturbance does not meet the criteria for another mental disorder, or exacerbation of preexisting mental disorder
- Symptoms does not represent normal bereavement
- Once the stressor is terminated the symptoms do not presist more than additional 6 months
- Specify:
- With depressed mood
- With anxiety
- With mixed anxiety and depressed mood
- With disturbance of conduct
- With mixed disturbance of emotions and conduct
- Unspecified
Adjustment disorders - treatment
- Psychotherapy
- Drugs
- The treatment of choice, usually with crisis intervention
- Better if can be avoided.
- When needed:
- Benzo - for anxiety
- SSRI - depression
- Antipsychotic - if psychosis is expected
- When needed:
Reactive attachment disorder - diagnosis (DSM-5)
- Pattern of inhibited behavior twords adult caregiver, manifested by both:
- Rarely seeks comfort when distressed
- Rarely responds to comfort when distressed
- Social and emotional disturbance manifested by at least 2 of the following:
- Minimal social and emotional responsiveness
- Limited positive effect
- Episodes of unexplained irritability that are evident even during nonthreatening interactions
- Child has experienced pattern of extreme insufficient care evidanced with at least 1 of the following:
- Lack of having basic emotional needs
- Repeated changes of primary caregivers
- Unusual setting that severely limit opportunities to form stable attachments
- Criterion C is responsible to criterion A
- Criteria for autism spectrum disorder is not met
- Evident before the age of 5
- Developmental age of at least 9 months
Disinhibited social engagement disorder - diagnosis (DSM-5)
- Child actively interacts with unfamiliar adults and at least 2 of the following:
- Reduced reticence in interacting with unfamiliar adults
- Overly familiar behavior
- Diminished checking back with adult caregiver after venturing away
- Willingness to go off with unfamiliar adult with minimal hesitation
- Criterion A is not due to impulsivity
- Experienced a pattern of extreme insufficient care, evidenced by at least 1 of the following:
- Lack of having basic emotional needs
- Repeated changes of primary caregivers
- Unusual setting that severely limit opportunities to form selective attachments
- Criterion C is responsible to criterion A
- Developmental age of at least 9 months
Personality disorders - etiology
- Genetic factors
- Higher frequency in…[1] twins
- To cluster A, there is more family history of…[2]
- Biologic
- Increase in…[3] hormones
- Abnormal…[4] test, and…[5] test
- MZ
- Schizophrenia
- Sex
- Dexamethasone supression
- TRH release
Presonality disorders - general diagnostic criteria (DSM-5)
- Behavior/internal sensation that deviates from the norm that is accepted in the patient’s culture, which is expressed in at least 2 areas:
- Cognition
- Affect
- Personal function
- Impulse control
- Persistent pattern, which is not flexible
- Causes significant distress and decrease in function
- Prolonged pattern that starts in teen or early adulthood
- Not due to other psychiartic illness
- No substance abuse of GMC
Paranoid personal disorder
- Incidence of…[1]
- More common in…[2] gender
- High rate in patients who have relatives with…[3]
- Common in…[4] and…[5]
- Starts in…[6]
- Defend mechanism is…[7]
- Some have tendency to develop…[8]
- 2-4%
- Male
- Schizophrenia
- Low SES (immigrants)
- Deaf people
- Early adulthood
- Projection
- Schizophrenia
רעיונות רפרנס, דעות קדומות, defended illusions
גזענות, חוסר חום אנושי