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seratonin and mirane
seratonin adn migraine
35
Medical
Graduate
09/28/2011

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Term
primary headaches
Definition
migraine headaches, clusterh eadaches, tension type headaches
Term
secodnary headache disroders
Definition
headaches asociated with ehad trauma, vascualr disorders, CNS infecitons ,metabolic disroders , brain tumors
Term
migraine headache
Definition
morefrequent ocurence in women, bilateral.unilearterl, pulsating quality, aggravated by physical routine, nausea and vomitting, phosto,osmo,phonobia, alelviation bysleep, famimlydisposition.
Term
migraine iwth aura
Definition
classic migraine, not as common as without aura. Aura can be visual, sensory, somatic . IT is abrupt onset neuroloic change that is fully reversible adn short acting. visual auras are the most common.
Term
Complicated migraine
Definition
aura symptosm are more pronounced, and disabling and logner lasting.
Term
pathphys of migraine headaches
Definition
bloodflow related- trigeminal nerve system in brainstem becomes overexcited. Trigeminal neurons release vasodilator neuropepdides. Vasodilation displaces pain sensitive intracarnial structures. Levels of serotinin (a casonconrtictive neruotransmitter) are diminished
Term
some riskf actors for migraine
Definition
stress, alelrgic reactions, pressure hcanges, altered sleep, alcohol use, bright lights, loud noises, odors or perfumes, excessive cafeine or withdrawal, sokingor expousre to smoke ,skipipng meals, hypoglycemia, hormonal fluctations oral conraceptives, foods.
Term
migraine diagnosis and testing
Definition
based on symtpmos and medical nad fmaily history. A lack of important physical findings is important fordiagnosis. If headaches not recent origin and not asosciated wit htrauma/ neuro deficits then dianogsit precdures are uneessary. THough they are sometimes they are obtaiend (mri/cat scan) to reulte out other causes ofh eadachesi n cases of complicated migraine
Term
mgirain treatment
Definition
avoidance of trigers: keeping ehadache diary. Abortive therpay: pharmacotheraphy aimed at releiveing haeadache pain and asosciated symptoms- inlcuindg anaglesics, serotoinin recpetor agonsits, anti-emetic therapy.
Term
Serotinin descritpion adna classes
Definition
synthesized from tyrptohphan. Serotnon receptor classes: 7 classes , G-rpotein coupld receptors and ligandated ion channel.
Term
Seratnonin actions
Definition
cardiovascular: powerful diret vascoonstriction except inskeletal muscleand heart whereti dialtes blodo vessels. GI: contracts GI smooth msucle increasing tone nad stimulating peristalisis. 90 percento f seratonin in in enterchromaffin cells of GI tracts.
Term
Triptans (descritpion, duration of action, receptors operating on, side effects, cost)
Definition
sumatriptan, preferred intialt herapy for patients with moderate to severe migraines. improve symtpoms. effective four hours or logner aftero nset of heacheSelectively stimulate ***sertonergic5 h-t 1b/1d*** . Relatively few side effects (some incldue tingling, dizines and midle chest/throat tightness).more expensie than ergots
Term
Trpitain MOA
Definition
reduce excitaiblity of trigeminal neruons and subsequent relase of vasodilatory neuropeptides. Vasoconstriction of cerebral and extracerebral vessels due to vascular serotonin receptors.
Term
triptan contraindications
Definition
Should not be used with patients with heart disease (conorary vascualture also contains serotonin receptors), prescribed dosage shoudl nto be excedded due to risk fo cardiac ischemia. Contraindicaitons- Uncontrolled hyeprtension, concomittant use of alkaloids, triptans, and otehr serotinin agonists - due to potential for preciptaitng serotinin syndrome.
Term
SUmatriptan
Definition
structural analgo of sertonin, first approvied tritpan. (avilable as oral tablets, subq, and snasal spray- useful for vomitign patients). fast acting, but short halflife (so headaches can recur within 24 horus of injection)
Term
sceond generation triptans
Definition
zolmitriptan naratriptan rizatriptan almotritpan frovatripatn eletritpan. Improved oral biovaility over suamt triptan. paritents may respond to some triptants better than others.
Term
triptan with lognesth alf life
Definition
frovatriptan.
Term
Cyp3a4 cleared tritpans
Definition
eletriptan, and almotriptan.
Term
erogt alkaloids
Definition
derivatied of lyseric acid. Preferred agents of releif pre triptans. Must be taken at earliest sign of migrain attack to be efective.
Term
ergot alkaloids side effects
Definition
lostso f adverse effects that are serious becuase stimualtes a varitety of serotonergic and noradrennergic recpetors and dompaminergic receptors. (useshoudlbe limited to no more than twice a week). Adverse effects: anusea omiting , anroexia, adn cardiac ischemia. Also severe peripheral vasocontrie effects (gangrene in serious cases). Also reboudn headache after discontionation of logneterm use.
Term
Ergotamine MOA
Definition
(use ergotamien tartarate and dighydroergotamine). can be given orally. Proposed mOA: inhibits releaseof neuropeptides , vasocontration of brain lood vesels. Caffeine cobined with ergotamine to potentiate vasoconstrictive effects.
Term
contraindications erogtamine
Definition
coronaory arteyr disease, hypertension, peripher/cerebral vascular disease, anemia maulnutrition, liver and kidney disease, breast feedign , CANT BE USED WITH ergotamien metabolism inhibitors *erythromycin) or with triptans.
Term
abrotive treatment of itnractblaem irane
Definition
migraine that doenst respond to ordinary tehrapy usually requireing parenteral therapy. use DIhydroergotamine, and sumatriptan.
Term
prophylatic therapy
Definition
may benefit some patients: paritcualry in those whose headaches impacthteir lives even with arotive therapy, or who have headaches so ffrequently taht abortive therapy is overusedw or if headaches are unresponsive to abortive treatment, or patients in whom abrotive treatmenti s contrindicated, or the presence of headaches leads to serious morbidiy or mortality risks
Term
propanolol
Definition
first line prophylatic agent. b- adrenergic blocking agnet.
Term
propanolol adverse effects
Definition
mild (diziness drowsiness, unusual weakness, restlessnes, tremor, nadeaase, bradycardia, bronchospasm)
Term
propanolol contraindications
Definition
cardiogenic shock, valvular disease, bronchial asthma, bonchispasm.
Term
Atmitryptiline :intro, MOA
Definition
first line agent for prophylaxis, blocks reuptake of seratonin at central sites (originally tricylcic antidepressant). However, other selective serotonin reuptake inhbiitors to dnot appear to be effective.
Term
amitryptilline adverse effects and contrindicaitons
Definition
include: dry mouth ,blurred vision, weight gain, difficulty thinking. Contraindications: shitory of seizure disorders, pregnancy, children under 12
Term
Verapamil itnro and moa.
Definition
calcium channel blocker. Second line agents of proph. Efects are modesdt comapred to propanolol and amitryptiline. 308 weeks requiredfor ersponse.
Term
verapamil adverse effecs and cotnraindications
Definition
adverse effecst: vertigo, hypotension,anusea, muscle fatigue cosnitipation.
contraindications: hypotension, cardiogenic shock ,CHF>
Term
flunarazine
Definition
like verapamil
Term
mehtysergide use
Definition
THird line prophylatic agent . Very effective but with severe side effects
Term
mehtysergide drug type
Definition
semi-syntehtic ergot alkaloid,
Term
methysergide side effects and contraidnciations
Definition
gi disturbacnes fibrotic changes andexcarcerbation fo cornoartyartery disease and angina. Contrindicaitons: coronoary arteyr diesase kp, peripheral or cerebral vascular disease, uncoroleld hypertension, hepatic disease, peptic ulcer disease, pulmonary disease, rhuematodi arhtiritsi, pregnancy ,breast feeding.
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