Term
|
Definition
distrubance of electrical discharge in the cerebral cortex. Neurons fire rapidly and repetively due to excess excitatory activity. Hard to identify which mechanism is the cause of the problem. Drugs do not interfere with normal neuronal activity but prevent the rapid and repetitive firing of neurons. This may occur through many differnet mechanisms as the nerve terminal or synapse |
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Term
|
Definition
is the major excitatory neurotransmitter |
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Term
|
Definition
is the major inhibitory transmitter |
|
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Term
|
Definition
chronic, disabling condition of recurrent seizures. In the general population of the United States, the prevelance of chronic seizure disorders is about 2 million persons with a lifetime incidence of 3%. |
|
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Term
|
Definition
altered state of consciosness, behavoir, perception, and motor funciton |
|
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Term
|
Definition
Usually unpredictable- may be preceded by an aura. |
|
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Term
|
Definition
1. Metabolic: hypoglycemia, hyponatremia, fever (only under 5 yo) , alkolosis.
2. Structural: tumor
3. Genetic: inborn error of metabolism.
4. Idiopathic: insufficient data to classify
5. Drug induced. (camphor, theophylline/aminophylline, tricyclic antidepressanys, cocaine, barbiturate withdrawal, petit mal is made worse by carbamazepine, phenytoin, or phenobarbital and alcohol withdrawal- when you stop a medication can cause a seizure)
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Term
Therapy for Seizures
Goal |
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Definition
Cure problem if possible. Normalized lifestle, prevent physical harm associated with seizures. Reduce seizure frequency and severity without impairing normal function. Use least toxic therapy. |
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Term
Seizures
Treatment modalities |
|
Definition
-Correct the underlying metabolic problem
-Consider possibility of poison, remove poison
-Drugs Pregnancy Category (Phenytoin-D, Phenobarbital-D, Carbamazepine-C, Valproic Acid- D, Ethosuximide- C, Primidone- D, Diazpam-D, Clonezepam-D, Felbamate-C, Gabapentin-C, Lamotrigine-C. BRIGGS |
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Term
|
Definition
When drugs are just not controlling seizures. Appears to be effective in prepubertal children. Generally reserved fir very frequent medically intractable seizures, including myoclonic and atonic seizures, absense seizures, and infanitile spasms. When is a patient is on this diet, watch out for hidden sources of sugar in medication. Induce metabolic acidosis, given very little carbs, makes it harder to induce a seizure. |
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Term
Seizure
Educating the patient |
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Definition
1.Include the whole family.( impacts everyone)
2. Keep a log
3. Wear a medical alert tag.
4. Explain the importance of good compliance
5. Discuss side effects patient should watch for.
6. Tell patient that the dose and/or the drug may have to be changed to find the best one for them. ( set the stage, they m |
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Term
What properties of a drug need to be in place that require a drug to be monitored through the use of blood concentrations? |
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Definition
1. Narrow therapeutic index
2. Blood levels have a known correlate to either therapeutic effect or toxic effect. ( Example: don't measure levels, measure a patients BP)
3. A rapidly changing physiological effect is not avaliable to be monitored.
4. There is a large variation in doses among patients needed to acheive the same steady state serum concentration (can't predict it) |
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Term
|
Definition
It is important to clearly note when the blood level was drawn in relation to the administration of the dose |
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Term
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Definition
It must be high enough for the drug to work and the peak level must be low enough to avoid dose-related toxicities. |
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Term
Seizure
If possible, we want a patient to be controlled on... |
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Definition
Monotherapy. One drug is selected and allowed to get into the therapeutic range, if control is inadaquate, a second drug is tried. The second drug should be added and allowed to attain therapeutic concentrations before the first drug is disconintued slowly over several weeks. DONT ABRUPTLY STOP ANTICONVULSANTS. RAPID WITHDRAWAL OF ANY ANTICONVULSANT DRUGS MAY PRECIPITATE SEIZURES. |
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Term
Anticonvulsant therapy may be completeley withdrawn in some patients
Good candiates fit the following criteria: |
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Definition
1. Seizure onset was between 2 and 35 years of age.
2. Normal EEG (now)
3. Seizure free for 2 to 5 years.
If all co-exist.
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Term
Anticonvulsant therapy may be completeley withdrawn in some patients
Good candiates fit the following criteria:
How slowly should therapy be discontinued? |
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Definition
very slowly over 3-6 months. Patients should be monitored very closely for the first year for reappearance of seizure disorder. |
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Term
Phenytoin
(Dilantin)
PHT
Mechanism of action |
|
Definition
inactivate fast Na+ channels leading to decreased release of glutamate and increased release of GABA |
|
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Term
Phenytoin
(Dilantin)
PHT
Therapeutic Range
Normal dose is 10-20 mcg/ml |
|
Definition
it is normally 90% protein bound. it's protein binding is decreased in the setting of hypoalbuminemia or renal dysfunction (secondary to uremia) As a result, the therapeutic range in a patient with a creatinine clearance <10 ml/min OR with hypoalbuminemia is 5-10 mcg/ml. In a patient with BOTH renal function and hypoalbumnemia the theraputic concentraton goes down to 3-5 mcg/ml. Good to closely monitor patients with increased unbound drug |
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Term
Phenytoin
(Dilantin)
PHT
Administration
Accumulation Kinetics |
|
Definition
its half-life gets longer as the serum concentration gets higher. As a result, if this drug is doubled than the new steady state is more than doubled. Th resulting increase is not easy to predict. increase the dose in small increments.
(increase no more than 30-50 mg per day when concentration is greater than 10 mcg/ml) system becomes saturated.
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Term
Phenytoin
(Dilantin)
PHT
Administration
A loading Dose |
|
Definition
necessary to achieve a therapeutic drug concentration rapidly. If an oral loading dose is used, the following regimen will minimize GI upset (adult dosing): give 1000 mg in 3 seperate doses. Calculate your loading dose based on the patients weight. |
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Term
Phenytoin
(Dilantin)
PHT
Administration
IM /IV |
|
Definition
The parenteral solution contains propylene glycol (40%) and is buffered to a pH of 12 to solumbilize the very insoluble phenytoin AVOID IM injection. Absorption is incomplete, delayed and may cause significant local irritation.
IV: do no exceed 25-50 mg/min. Can be mixed in NS. Rapid injection mayy precipiatate cardiac arrhythmias, wat are in part caused by propylene glyol. Monitor BP and EKG. |
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Term
Phenytoin
(Dilantin)
PHT
Administraton
Intravenous |
|
Definition
are possible if guidelines are closely followed. Mix only in NS. Do not refrigerate. When converting to IV from a once daily dose of an oral extended relaease preparation, divided doses should be given to avoid fluctuations in serum concentrations. (TID) |
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Term
Phenytoin
(Dilantin)
PHT
Administraton
Oral suspension |
|
Definition
Always shake to achieve well uniformed dose. When given with tube feedings will result in reduced bioavailability. it binds to the food. Need to give a bigger dose. Be careful with dietary changes. |
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Term
Phenytoin
(Dilantin)
PHT
Neurologic Toxicity |
|
Definition
1. Cognitive impairment
2. Sedation, nystagmus (eyes move around) >20 mcg/ml
ataxia (lack of muscle coordination)>30 mcg/ml
mental changes: delirium, psychosis, depression >40
3. make make petit mal seizures worse. |
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Term
Phenytoin
(Dilantin)
PHT
Systemic toxicity |
|
Definition
1. Gingival hypertrophy: minimized by good oral hygeine, although reversible, if permanent teeth grow through the "hyperplastic" gums, teeth will be out of place requiring orthodontry correction.
2. Skin rashes: can progress to Steven-Johnsons syndrome or toxic epidermal necrosis which may be fatal
3. Hirsutism, coarsening of facial features, and a long list of infrequent toxicities.
4. Cardiac arrythmias and/or hypotension if injected IV too quickly. |
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Term
Phenytoin
(Dilantin)
PHT
DRUG INTERACTIONS
Disulfiram |
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Definition
inhibits phenytoin metabolism |
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Term
Phenytoin
(Dilantin)
PHT
DRUG INTERACTIONS
Isoniazid |
|
Definition
inhibits phenotoin metabolism |
|
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Term
Phenytoin
(Dilantin)
PHT
DRUG INTERACTIONS
Theophylline |
|
Definition
clearance is increased by phenytoin |
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Term
Phenytoin
(Dilantin)
PHT
DRUG INTERACTIONS
Fosohenytoin |
|
Definition
is converted to phenytoin after absorption
it is water soluble and can be injected faster than phenytoin, causes less phlebitis and tissue damage at injection site. It is also more expensive |
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Term
Phenobarbital
Solfoton
Mechanism of Action
|
|
Definition
inactivates fast Na+ channels leading to enhanced GABA effects and decreased glutamate release. |
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Term
Phenobarbital
Solfoton
Half-life |
|
Definition
very long - up to 96 hours (stick around for a long time)
Need a loading dose. |
|
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Term
Phenobarbital
Solfoton
Toxicity |
|
Definition
1. hyperactivity and inattention in children
2. sedation- tolerance develops.
3. Cognitive skill impairment (may continue as long as patient is on therapy)
4. may make petit mal (absense) seizures worse. |
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Term
Phenobarbital
Solfoton
Patient Related Variables |
|
Definition
1. it stimulates the metabolism of many drugs.
2. Severe liver disease: doasage adjustment is needed
3. Resp depression |
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Term
|
Definition
not used a lot. metabolized into phenobarbital. Everything same as phenobarbital |
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Term
Carbamazepine
Tegretol, Tegretol XR
ADMINISTRATION |
|
Definition
exposing this drug to moisture will decrease their bioavailability by 30% (do not store in medicine cabinet near a shower) |
|
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Term
Carbamazepine
Tegretol, Tegretol XR
METABOLISM |
|
Definition
it stimulates its own metabolism as well as that of over drugs. so over time the blood level drifts downward. This autoinduciton takes 21-28 days to fully develop. If the dose is increased slowly over 2 to 3 weeks, this effect will not be noticed. |
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Term
Carbamazepine
Tegretol, Tegretol XR
toxicity |
|
Definition
take a baseline blood level and periodically watch. Neutropenia 5%, leucopenia 5% (consider discontinueing therapy id WBCs <2,500 or if neutrophil count <1,000 |
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Term
|
Definition
more expensive, better tolerated. same as carbamazepine |
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Term
VALPROIC ACID
Depakene, Depacon
DIVALPROEX Sodium
Depakote
Does it come in a few or a lot of ways to administer? |
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Definition
*Comes in a variety of ways to administer. they come in different doses. different products |
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Term
VALPROIC ACID
Depakene, Depacon
DIVALPROEX Sodium
Depakote
Administration |
|
Definition
-Give with food to decrease the GI effects
-Valproic acid sprinkle capsules can be opened and placed on food DO NOT CHEW. |
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Term
VALPROIC ACID
Depakene, Depacon
DIVALPROEX Sodium
Depakote
toxicity |
|
Definition
1. Liver Disease: baseline lft's, more common in children than older patients but still rare in both. mild elevations in LFT's are common.
2. Causes little sedation, does not affect cognitive skills. good thing about this drug
3. Weight gain (control with diet) diet training before you start the drug |
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Term
ETHOSUXIMIDE
Zarontin
What kind of seizure is this the drug of choice for? |
|
Definition
PETIT MAL
thats all its used for |
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Term
BENZODIAZEPINES
Diazepam
When do you administer this drug? |
|
Definition
during status epilepticus. After the patient has had a seizure and befor they are going to have another one
-problem with chronic use of this drug is patients develop a tolerance.
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Term
FELBAMATE
Felbatol
What severe toxicity does this drug cause? |
|
Definition
Causes aplastic anemia (1:2,500) not reported in children under 13 years old. Generally presents during the first 5 months of therapy. Primarily reported in womend with autoimmune diseases. 3rd line therapy when others don't work |
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|
Term
LAMOTRIGINE
Lamictal
BLACK BOX WARNING |
|
Definition
1:100, Rash 10% potentially life threatening (adults 3/1000; children 1/100-1/200) Most reported cases of life-threatening rash have been reported within 2-8 weeks of starting therapy (isolated cases after 6 months of therapy) Discontinue therapy at first sign of rash. Not used as a first line drug for kids. Steven Johnson's syndrome. FDA only approved use for kids 16 and under for Lennox-Gastaut syndrome. |
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Term
SEDATIVES, HYPNOTICS, AND ANXIOLYTICS
GENERAL |
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Definition
These agents are indicated for short-term management of insomnia and for sedation prior to medical/diagnostic procedures. Anxiolytics may also be used for anxiety disorders such as panic disorder, generalized anxiety disorder, and social anxiety disorder. a. Sedatives/anxiolytics – reduce anxiety, produce a calming effect b. Hypnotics – induce sleep
Both very similar |
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Term
Consider non-pharmacologic therapy for insomnia
(avoid medication) |
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Definition
1. Establish regular sleep/wake up times 2. Avoid long periods of wakefulness in bed (get out of bed, do not watch tv in bed) 3. Avoid daytime naps (sleep apnea) 4. Exercise regularly (but not just before bedtime) |
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Term
Remove drug related causes of insomnia:
think these things before giving a medication |
|
Definition
1. Decongestant at bedtime
2. SSRIs given at bedtime 3. Diuretics given at bedtime 4. Caffeine use at bedtime 5. Alcohol use at bedtime 6. Heavy meal before bedtime 7. Other |
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Term
Treatment of insomnia
(Criteria for ideal hypnotic agents) |
|
Definition
1. Rapid onset 2. Sufficient duration to last through the night 3. No residual daytime sedation 4. No disturbance of normal sleep patterns 5. No tolerance or withdrawal The ideal hypnotic has not yet been discovered! |
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Term
Use of sedatives for diagnostic or invasive procedures |
|
Definition
present a risk of respiratory and/or cardiovascular collapse.(Consult local policies and procedures for specifics) SAfety issue
1. Description for when sedative procedure should be used 2. Description of personnel training requirements 3. Baseline measurements of vital signs and CNS status 4. Monitoring requirements (should include use of pulse oximeter) 5. Description of resuscitation equipment that should be immediately available 6. Criteria for discontinuing close monitoring |
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|
Term
Benzodiazepine Receptor Agonists (BZDRA’s)
Mechanism of action |
|
Definition
BZDs interact with GABA receptors enhancing the inhibitory effects of GABA in the brain |
|
|
Term
Benzodiazepine Receptor Agonists (BZDRA’s)
Examples of Drugs |
|
Definition
Zolpidem (Ambien), zaleplon (Sonata), eszopiclone (Lunesta)
withdrawal symptoms can occur with abrupt disconinuation |
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|
Term
*BZDs have the following 4 properties: |
|
Definition
a. Anticonvulsant b. Anxiolytic (decrease anxiety) c. Sedative d. Muscle relaxant |
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|
Term
Benzodiazepine Receptor Agonists (BZDRA’s)
How lethal are they when a lot are taken at once?
|
|
Definition
-Unlike CNS depressants, BZD's are less toxic, i.e. fetal overdose with oral BZD is very uncommon. They can be lethal when taken with other CNS depressants like ethanol, barbiturates, etc.
-Abrupt disconinuaiton can lead to withdrawal-- anxiety, insominia, increased CNS excitablility that can lead to seizure activity. |
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Term
|
Definition
can be lethal in overdose. more pronounced depressive effect on the CNS than BNZ's |
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|
Term
|
Definition
Active ingredient in most OTC sedatives
they are also anticholinergicss: dry mouth, tachycardia, urinary retention, and constipation. Not great for older people for a sleeper drug |
|
|
Term
|
Definition
-good for jet lag
-melatonin indongenous that peaks as we are going to sleep.
- Hypnotic that acts as an agonist at melatonin receptors.
-expensive
-not a controlled substance. CAM (complimentarl and alternative) no regulation on it from FDA.
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|
|
Term
Clinical Use of Sedatives and Hypnotics
BZD's with long 1/2 life |
|
Definition
BZD's with long T1/2's (e.g flurazapam-Dulmane) can cause significant daytime sedation an impaired psychomotor performance. DO NOT USE METABOLITES WITH LONG HALF LIFE. Cause daytime sedation |
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|
Term
What is the first line of therapy for sedation/hypnotics? |
|
Definition
BZDRAs have become the first line of therapy for insomnia because of their wider therapeutic index, and few drug interactions |
|
|
Term
Benzodiazepine Receptor Agonists (BZDRA’s)
BXD's, Barbituates, and antihistamines
ADVERSE EFFECTS |
|
Definition
1. Sedation: day time
2. Amnesia: most common: midazolam, temazepam, & triazolam.
3. Resp depression: most notably with IV/ combo with fentanyl.
4. Dependance and withdrawal. WITHDRAWAL FROM BARBITURATES CAN BE FATAL. S/S include: anxiety, tremor insomnia, agitation, tachycardia, vomiting, diaphoresis, seizures. usually not fatal
5. Paradoxical agitation/rage (patients go nuts)
6. Flumazenil (Romazicon) is a benzodiazepine antagonits: (same as how narcan is to opiod)
7. OSA (don't want to give them a BZD)
8. Rebound Insomnia: rebound , makes you sleep lighter, keep use of these short term. Once stop patient will have trouble sleeping for a few nights. |
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|
Term
IMPORTANT DRUG INTERACTION
midazolam and protease inhibitors |
|
Definition
can inhibit metabolism of midazolam and can stick around a long time. sedation a long time. |
|
|
Term
benzodiazepines
Onset of Action |
|
Definition
0.5-1 hours thus atleast one hour should lapse prior to redosing og prn BZD for sleep. |
|
|
Term
TREATMENT of ANXIETY
General Anxiety Disorder Acute treatment (short term) |
|
Definition
Benzodiazepines - Although all are effective, the following are commonly used: Diazepam, Alprazolam, Chlordiazepoxide, Clorazepate. |
|
|
Term
TREATMENT of ANXIETY
General Anxiety Disorder
Chronic Therapy |
|
Definition
i. Antidepressents have replace benzodiazepines as the drugs of choice because: 1. Depression is a common comorbidity in GAD 2. No addictive potential (SSRI's) |
|
|
Term
Anti-anxiety
Buspirone
(Buspar) |
|
Definition
Mixed reviews: can't take 1-3 weeks to start working.
Nonbenzodiazepine with anxiolytic properties. Has no anticonvulsant, sedative or muscle relaxant property. (Inconsistent reports of efficacy) Activity at serotonin receptors. Buspirone is effective as an antianxiety medication but is ineffective in treating panic disorders. i. Onset of action is slow; may take 1 to 3 weeks for maximal effects; thus, is never used on a prn basis. ii. Does not have sedative properties; therefore, does not produce additive sedation with alcohol or other CNS depressants. iii. Questionable effectiveness particularly in the elderly. |
|
|
Term
Social Anxiety Disorders
and
Panic Disorders |
|
Definition
*SSRI's are the drug of choice
-Benzodiasepines are effective but are generally not used as monotherapy. Patients find it difficult to stop taking these medication because of rebound anxiety. |
|
|
Term
Stage Fright
Beta blockers |
|
Definition
maybe useful in patients with peformance anxiety who present primarily with cardiovascular symptoms of anxiety (palpitations/tremors) NOT GOOD FOR SOCIAL ANXIETY DISORDER |
|
|
Term
HEADACHE
2 GENERAL DIVISIONS
ORGANIC |
|
Definition
1. Infections: Meningitis, sinus
2. Diseases of eyes, ears, nose, throat, teeth
3. Mass lesions: tumors edema, hematomas, cerebral hemorrhage.
4. Cranial Neuralgias (trigeminal, glossopharyngeal ) |
|
|
Term
HEADACHE
2 GENERAL DIVISIONS
Non-Organic |
|
Definition
1. With aura
2. Without aura
3. Migraine variants ("complicated migraine")
a. Hemiplegic: paralysis/weakness on one side of the body
b. opthalmoplegic: paralysis of eye muscles
c. Basilar artery: dizzyness, vertigo, ataxia |
|
|
Term
Migraine variants ("complicated migraine")
has a headache with these things
KNOW the 3 and what drug is contraindicated when these are present |
|
Definition
a. Hemiplegic: paralysis/weakness on one side of the body
b. opthalmoplegic: paralysis of eye mus
c. Basilar artery: dizzyness, vertigo, ataxia
TRIPTANS |
|
|
Term
|
Definition
(1) Prevalence 0.08% in women and 0.4% in men; onset in late 20’s (2) Severe, unilateral pain that is retro-orbital; often described as “searing burning pain behind one eye.” (3) Not associated with an aura (4) Usually associated with one or more of the following symptoms on the side of the head where the patient has pain: lacrimation, conjunctival injection, rhinorrhea, forehead of facial swelling, miosis, ptosis. (5) Treatment/prevention: (a) Therapy similar to migraine therapy (b) Abortive therapy can include Oxygen 5-8L/min |
|
|
Term
|
Definition
Likely a “low-intensity” migraine |
|
|
Term
|
Definition
BP must be very high to cause a HA ( a bad HA can cause mild hypertension) treat HA by treating cause of high blood pressure.
(Which came first) |
|
|
Term
Migraine Headache
Wolf Theory )Vascular Hypothesis
NOT SUPPORTED BY CURRENT EVIDENCE |
|
Definition
a) Vasospasm is initiating pathology b) Ischemia – cause of aura c) Release of vasospasm – aura ends d) Vasodilatation – cause of throbbing headache |
|
|
Term
migraine headache
Neurogenic Theory
PREVAILING CURRENT HYPOTHESIS |
|
Definition
a) Two current theories of the root cause of migraines: Dysfunction originates in brainstem and spreads to the cortex or the other way around – currently a debated point b) Cortical Spreading Depression (wave of intense nerve cell activity) (1) When wave of activity involves the sensory cortex, an aura occurs. (2) Neuronal dysfunction involves the brain stem resulting in dysinhibition of the trigeminovascular system causing the release of neurotransmitters (glutamate and nitric oxide), which in turn cause release calcitonin gene-related peptide (CGRP), which in turn causes inflammation and pain (headache). (3) Aura is not associated with ischemia (4) Headache is not associated with vasodilatation
Serotonin is a key neurotransmitter regulating the trigeminovascular system: serotonin stimulation inhibitors CGRP release |
|
|
Term
International Headache Society
definition of a headache |
|
Definition
“a familial disorder characterized by recurrent attacks of headache of variable frequency, duration, and intensity, which are usually unilateral and associated with anorexia, nausea, and vomiting; these attacks may be preceded or accompanied by neurological or visual symptoms” |
|
|
Term
Migraine headaches
Prodrome |
|
Definition
occurs in approximately 60% of the patients
can last hours to days.
symptoms include: depression, difficulty concentrating, feeling weary and tired, stiff neck. |
|
|
Term
|
Definition
occurs in approx 30% of patients
evolves over 5-20 minutes
can be visual, sensory, or motor
headache usually follows within 60 minutes. |
|
|
Term
|
Definition
they are typically unilateral, gradual onset, and throbbing.
Variable in durationL 4-72 hours in adults, 1-72 hours in children (shorter)
bilateral pain in 40% pf patients
anoerxia, N/V are common |
|
|
Term
Migraine headache
Postdrone |
|
Definition
occurs approximately in 70% of patients
feeling tired washed out, impaired concentration, scalp tenderness, depression, malaise
some patients can feel refreshed or euphoric |
|
|
Term
Trigger for Migraine headaches |
|
Definition
Diet: chocolate, alcohol, monosodium glucomate, menstration, sleep deprevation, tyramine contained foods (aged cheeses) nitrates (processed food, hot dogs), skipped meals
Drugs: theophylline, nitroglycerine, drug induced intracranial pressure (NSAID, esp indomethacin), OCP, steroids, TMP-SMX (Bactrim), tetracycline (esp minocycline)
Enviromental
Emotional
cocaine (give patients permission to tell us the truth)
alcholol withdrawal, caffeine withdrawal
Decongestants |
|
|
Term
Treatments for a headache
ABORTIVE THERAPY
first few things you do |
|
Definition
-Move to cool, quiet dark enviroment
-Start therapy promptly with adequate dose: GI motility is still adequate for oral therapy, Gastric stasis is associated with migraines. |
|
|
Term
Treatments for a headache
ABORTIVE THERAPY
NSAIDS |
|
Definition
a) First line therapy for mild to moderate HA – must take early, and don't be wimpy give effective dose (1) Aspirin 900mg (adult) (2) Naproxen Sodium (a) Anaprox one or two 550mg tabs q12h (b) Aleve 450mg q12h (3) Ibuprofen (a) 800mg q4h x 2 doses (b) 5-10mg/kg/ dose x 2 doses b) Overuse can cause rebound headache; avoid regular use (may be used regularly at time of menstruation for menstruation related HA). Max 2-3 days/week.
-Rebound headache when withdrawal |
|
|
Term
Treatments for a headache
ABORTIVE THERAPY
Acetaminophen |
|
Definition
NOT EFFECTIVE placebo controlled trials have not shown oral acetaminophen to be effective. |
|
|
Term
Treatments for a headache
ABORTIVE THERAPY
NARCOTICS |
|
Definition
a) Because of potential of overuse (ADDICTIVE), narcotics are generally reserved for rescue therapy when other therapies have not worked. b) Butorphanol nasal spray (Stadol NS) may use in emergency situation. |
|
|
Term
Treatments for a headache
ABORTIVE THERAPY
METACLOPRAMIDE (REGLAN) |
|
Definition
Effective as stand alone therapy - also helps to relieve nausea |
|
|
Term
Treatments for a headache
ABORTIVE THERAPY
Fiorinal (ASA, butalbital, caffeine) |
|
Definition
a) Fiorinal – No placebo controlled trials are available to prove or disprove its efficacy. b) Caffeine (1) May help in cases of caffeine withdrawal (2) May inhibit sleep c) Barbiturates (1) May be habit forming (NOT A FAN) |
|
|
Term
Treatments for a headache
ABORTIVE THERAPY
MIDRIN
(combo: isometheptene, dichloraphenazone, acetaminophen) |
|
Definition
a) Studies demonstrate only borderline effectiveness b) Used in mild to moderate headache c) Mild vasoconstriction, sedative, analgesic d) Take 2 caps at onset, then 1qh, max 5 q12h e) Makes patient sleepy |
|
|
Term
Treatments for a headache
ABORTIVE THERAPY
TRIPTANS
(NSAIDS and these are first line) |
|
Definition
-this drug stimulate the serotonin receptor (5-HT) 1D/1B receptors (without stimulating any other serotonin receptors) which in turn interrupts the release of calcitonin gene-related peptide (CGRP) which decreases pain and inflammation
-Efficacy in children is not clear, probably because untreated migraines in children are relatively short compared to adults.
-Does not prevent the aura
|
|
|
Term
Treatments for a headache
ABORTIVE THERAPY
TRIPTANS
CONTRAINDICATIONS |
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Definition
They can cause ischemia
(1) Complicated Migraines (a) Hemiplegic – paralysis/weakness on one side of the body (b) Opthalmoplegic – paralysis of eye muscles (c) Basilar artery – Dizziness, vertigo, ataxia (2) Ischemic Heart Disease (acute MI is rare) (3) Prior MI (4) Pregnancy DO NOT COMBINE ERGOTS AND OTHER TRIPTANS ( too much serotonin stimulation) |
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Term
Treatments for a headache
ABORTIVE THERAPY
TRIPTANS
TOXICITIES |
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Definition
(may want patient to try first dose in your office)
(1) Pressure, tightness, or warmth in chest, neck, throat, jaw – can mimic angina. Mechanism is secondary to motility changes of esophagus and not secondary to ischemia. (2) Nausea / Vomiting (3) Bad taste from nasal product (Sumatriptan) |
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Term
Treatments for a headache
ABORTIVE THERAPY
TRIPTANS
DRUG INTERACTIONS |
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Definition
(1) SSRI – weakness, hyperreflexia, incoordination (2) Ergots + Other triptans – excessive vasoconstriction |
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Term
Treatments for a headache
ABORTIVE THERAPY
EROGOTS
(Non specific Serotonin agonist)
What can be a life threatening controindication for combination with another medication? |
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Definition
getting away from using them
Life threatening peripheral ischemia has been associated with the coadministration of Caforgot and potent CYP 3A4 inhibitors (protease inhibitors and erythromycin inhibit that enzyme and cause ergots to become toxic and even fatal) |
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Term
Treatments for a headache
ABORTIVE THERAPY
DHE- Dihydroergotamine |
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Definition
WILL MAKE YOU FEEL LIKE YOUR GOING TO DIE/ MUST BABYSIT THE PATIENT/ Acute anxiety last maybe 10 minutes
transient cerebral ischemia |
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Term
Treatments for a headache
ABORTIVE THERAPY
Antiemetics |
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Definition
a) IV prochlorperazine (Compazine) and ondansetron (Zofran) have been shown to be useful adjuvant therapy as a first-line antiemetic in the setting of a provider’s office or emergency department. |
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Term
Treatments for a headache
ABORTIVE THERAPY
Drugs shown NOT to work |
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Definition
a) Acetaminophen alone b) Intranasal lidocaine c) IV corticosteroids d) Clonidine |
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Term
Treatments for a headache
ABORTIVE THERAPY
Drugs without good studies supporting efficacy. |
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Definition
a) Feverfew b) SSRI (with exception of fluoxetine where there is evidence for modest effectiveness) |
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Term
Migraine Headaches
PROPHYLACTIC THERAPY
(may take 2-6 months to show full therapeutic benefit)
CRITERIA FOR USE |
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Definition
a) Three for more migraine headaches per month b) Migraine HA >48hours c) Extreme HA severity |
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Term
Migraine Headaches
PROPHYLACTIC THERAPY
(may take 2-6 months to show full therapeutic benefit)
DRUGS USED |
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Definition
-Propranolol 40-120 mg tid
- Cyproheptidine (Periactine) 2-18 mg qd a) Very poor choice for children / adolescents (even though the only FDA approved for kids) b) causes Sedation, weight gain
- (GOOD) Amitryptyline (Elavil) 10-100 mg qhs (10mg qhs, incr. by 10mg/day/wk) small dose, also treats depressiona) Dry mouth, constipation b) Good choice for adolescents (note next item)c) Keep out of reach of small children* d) Weight gain in some patients.
- Verapamil (Calan)
-Valprioric acid (Divalproex) |
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