- OK, WE CAN GET STARTED. I'D LIKE TO WELCOME YOU ALL TO OUR "INTRODUCTION TO EPILEPSY AND SEIZURES" AUDIO CALL SERIES. MY NAME IS SEAN GAMBLE, AND I'M WITH THE EMPLOYEE EDUCATION SERVICES, ST. LOUIS, AND I AM THE PROJECT MANAGER FOR THE SERIES. THIS IS A CALL THAT WILL CONTINUE TO OCCUR EVERY OTHER MONTH ON THE FIRST WEDNESDAY AT 2:00 P.M. EASTERN. OUR NEXT CALL WILL BE ON MAY 4 WITH DR. PAUL RUTECKI. ALL YOUR LINES ARE MUTED AND WILL BE OPENED UP AT THE END OF THE PRESENTATION WHEN WE ARE READY FOR QUESTIONS AND ANSWERS. PLEASE BE SURE AT THE END OF THIS TO COMPLETE YOUR EVALUATION TO GET CREDIT FOR THIS PROGRAM. COMPLETE DIRECTIONS FOR YOUR EVALUATIONS ARE IN A BROCHURE OR IN THE CATALOGUE. YOU WILL HAVE 30 DAYS TO SUBMIT YOUR EVALUATION FORMS. DEADLINE DATE FOR THAT IS MAY 1. NOW I WANT TO WELCOME OUR GUEST SPEAKER FOR TODAY. IT IS DR. KAREN PARKO. DR. PARKO, YOU CAN GO AHEAD AND START YOUR PRESENTATION. - THANK YOU, SEAN. HELLO, AND WELCOME TO THE FIRST EPILEPSY CENTER SERIES OF CONTINUING EDUCATION LECTURES. THIS SERIES IS A COMBINED PRODUCTION OF THE EMPLOYEE EDUCATION SYSTEM AND THE EDUCATIONAL WORKING GROUP OF THE EPILEPSY CENTERS OF EXCELLENCE. MY NAME IS KAREN PARKO, AND I WORK AT THE SAN FRANCISCO VA. TODAY I'M GOING TO PROVIDE AN INTRODUCTION TO SEIZURES AND EPILEPSY WITH SPECIFIC ATTENTION TO DIAGNOSIS AND TREATMENT. PLEASE MOVE TO THE FIRST SLIDE. THESE ARE THE OBJECTIVES OF TODAY'S PRESENTATION. I WILL START WITH SOME DEFINITIONS; HOPEFULLY HELP YOU UNDERSTAND HOW SEIZURES AND EPILEPSY ARE CLASSIFIED, WITH SPECIAL ATTENTION TO THE NEW NOMENCLATURE; TALK ABOUT THE EVALUATION AND DIAGNOSIS OF SEIZURES; AND THEN MOVE ON TO THE TREATMENT OF EPILEPSY USING MEDICATION AND SURGICAL APPROACHES. I WANT TO GIVE YOU SOME GUIDANCE ON SELECTING PATIENTS TO REFER TO AN EPILEPSY CENTER, AND LASTLY, I WANT TO GO OVER THE ORGANIZATION OF THE NEW VA EPILEPSY CENTERS OF EXCELLENCE, WITH SPECIFIC ATTENTION TO HOW TO REACH OR CONTACT THESE CENTERS IN ORDER TO GET HELP CARING FOR YOUR PATIENTS THAT HAVE EPILEPSY. NEXT SLIDE. A SEIZURE IS CAUSED BY AN EXCESSIVE ELECTRICAL DISCHARGE OF NERVE CELLS IN THE BRAIN. BRAIN CELLS--NEURONS-- COMMUNICATE WITH EACH OTHER NORMALLY BY ELECTRICAL AND CHEMICAL MEANS. WHEN THIS COMMUNICATION GOES HAYWIRE AND THE NERVE CELLS ALL DISCHARGE SYNCHRONOUSLY, A SEIZURE OCCURS. THIS CAN OCCUR IN ALMOST ALL PARTS OF THE BRAIN, AND DEPENDING ON WHERE THE DISCHARGE IS IN THE BRAIN, THE PERSON WILL EXPERIENCE DIFFERENT SYMPTOMS. ANY BRAIN UNDER THE RIGHT, OR PERHAPS I SHOULD SAY WRONG CIRCUMSTANCES WILL HAVE A SEIZURE. A SEIZURE WILL OCCUR IN ABOUT 10% OF ALL PEOPLE. NEXT SLIDE. NOW, ALTHOUGH ANYONE'S BRAIN CAN HAVE A SEIZURE AND 10% OF THE POPULATION WILL EXPERIENCE A SEIZURE AT SOME TIME IN THEIR LIFETIME, HAVING RECURRENT SEIZURES IS MUCH LESS COMMON AND WILL OCCUR IN ONLY 1% OF THE POPULATION. WHEN SEIZURES RECUR, THE CONDITION IS LABELED EPILEPSY. OPERATIONALLY DEFINED, EPILEPSY IS DIAGNOSED AFTER A PERSON HAS HAD TWOUNPROVOKED UNPROVIKED SEIZURES. IN CLINICAL PRACTICE, THIS IS OFTEN REFERRED TO AS A SEIZURE DISORDER, WHICH I BELIEVE IS FELT BY SOME TO CARRY LESS STIGMA THAN THE WORD "EPILEPSY." HOWEVER, THIS IS REALLY CONFUSING TO PATIENTS, AND WE SHOULD TRY TO USE THE CORRECT TERMINOLOGY. THE PREVALENCE OF EPILEPSY INCREASES OVER THE LIFESPAN, AND BY AGE 75, 3% OF THE POPULATION WILL HAVE DEVELOPED EPILEPSY. NEXT SLIDE. EPILEPSY IS THE MOST COMMON CHRONIC NEUROLOGICAL CONDITION THROUGHOUT THE WORLD. IT IS ALSO ONE OF THE MOST TREATABLE NEUROLOGIC CONDITIONS. NEXT SLIDE. IF YOU LOOK AT THE INCIDENCE OF EPILEPSY, THAT IS, THE NEW CASES OF EPILEPSY, OVER THE AGE OF ONSET, WHICH IS ON THE BOTTOM LINE HERE, YOU WILL NOTICE THAT THE INCIDENCE IS HIGHEST AT BOTH ENDS OF THE SPECTRUM OF LIFE--THAT IS, IN THE YOUNG AND THE OLD. THE ONSET OF EPILEPSY IS HIGHEST IN PATIENTS OVER 60 YEARS OF AGE. THE WORK ON THIS SLIDE IS DONE BY ALLEN HAUSER, AND IT SHOWS A TWO-TO-THREEFOLD INCREASE IN THE INCIDENCE OF SEIZURES IN PERSONS 75 AND OLDER COMPARED WITH THE YOUNGER GROUP. HOWEVER, FURTHER ONGOING WORK INDICATES THAT IF YOU TAKE INTO ACCOUNT UNDERDIAGNOSIS, SOMETHING THE EPILEPSY COMMUNITY THINKS OCCURS OFTEN IN THE ELDERLY, THE INCIDENCE MAY ACTUALLY BE SIX-TO-TENFOLD HIGHER IN THE ELDERLY POPULATION. THIS IS OF PARTICULAR INTEREST TO THE VA POPULATION, WHERE THE MAJORITY OF OUR PATIENTS FALL INTO THE OLDER-AGE CATEGORIES, ALTHOUGH OUR PATIENT POPULATION IS CHANGING WITH THE INFLUX OF MIDDLE EAST VETERANS. NEXT SLIDE. NOW I WANT TO TALK ABOUT THE CLASSIFICATION OF SEIZURES SO THAT WE ALL UNDERSTAND WHERE WE'RE AT. THIS CURRENTLY CAUSES SOME CONFUSION BECAUSE THE NAMES THAT WE HAVE USED IN HOW WE CLASSIFY SEIZURES CHANGED RECENTLY IN 2010, AND SO I WANT TO DIGRESS A LITTLE AND TALK ABOUT THE CHANGES. THE INTERNATIONAL LEAGUE AGAINST EPILEPSY IS AN INTERNATIONAL PROFESSIONAL GROUP. ONE OF ITS IMPACTS IT HAS HAD IS PROVIDING A STANDARD WAY TO COMMUNICATE AROUND THE WORLD FOR SEIZURES. THE FIRST INTERNATIONAL CLASSIFICATION CAME OUT IN 1981, AND SINCE THAT TIME, THERE HAVE BEEN EFFORTS TO REFINE AND REALLY TRY TO PERFECT THE CLASSIFICATIONS. THE CLASSIFICATIONS ARE DONE USING VIDEO RECORDINGS OF PEOPLE WITH SEIZURES TOGETHER WITH THE ELECTRICAL PATTERNS SEEN ON EEG OR ELECTROENCEPHALOGRAPHY FROM EPILEPSY CENTERS AROUND THE WORLD. NEXT SLIDE. IN THIS SLIDE, I HAVE PLACED THE TERMINOLOGY, THE NAMES FOR THE SEIZURES, SIDE BY SIDE SO THAT YOU CAN COMPARE THE NAMES YOU OR YOUR PATIENTS MIGHT BE FAMILIAR WITH TO THE CURRENT TERMINOLOGY. AS SHOWN IN RED--AND I'M GONNA DISCUSS THIS FURTHER ON THE NEXT SLIDE--THE CURRENT TERMS FALL INTO ONE OF TWO CATEGORIES. SEIZURES ARE EITHER FOCAL OR GENERALIZED. ALTHOUGH IT'S HARD TO INCORPORATE NEW NAMES FROM THOSE WE ALL WORKED SO HARD TO PUT INTO MEMORY DURING OUR CLINICAL TRAINING, I THINK YOU WILL FIND THAT THE NEW NAMES ACTUALLY MAKE SENSE AND HELP BOTH OURS AND OUR PATIENTS UNDERSTAND SEIZURES BETTER. NEXT SLIDE. AS NOTED, THERE ARE ONLY TWO TYPES OF SEIZURES, AND THE NAME GIVEN TO THE SEIZURE TYPE, FOCAL OR GENERALIZED, REFERS TO THE WAY THAT THE SEIZURE ORIGINATES IN THE BRAIN. FOCAL SEIZURES START IN ONE SPECIFIC AREA OF THE BRAIN, WHEREAS GENERALIZED SEIZURES START IN THE WHOLE BRAIN AT THE SAME EXACT TIME. FOCAL SEIZURES CAN BE DIVIDED INTO FOCAL SEIZURES THAT START IN AN ISOLATED, FOCAL AREA OF THE BRAIN AND DO NOT INVOLVE ANY ALTERATION OF CONSCIOUSNESS. THE OTHER TYPE OF FOCAL SEIZURE IS AGAIN A SEIZURE THAT STARTS IN AN ISOLATED OR FOCAL AREA OF THE BRAIN, BUT IT INVOLVES ALERTNESS OR THE PERSON'S ABILITY TO INTERACT WITH THE WORLD. THIS IS ONE OF THE MOST COMMON SEIZURE TYPES, AND WE USED TO CALL IT COMPLEX PARTIAL SEIZURES. NOW, A SEIZURE THAT STARTS IN A FOCAL AREA OF THE BRAIN CAN OFTEN SPREAD WITH ELECTRICAL EXCITATION AND ACTIVITY ACROSS THE ENTIRE BRAIN. WHEN IT DOES THIS, IT IS CALLED A FOCAL SEIZURE WITH EVOLUTION TO A BILATERAL CONVULSIVE SEIZURE, PREVIOUSLY AND STILL CALLED SECONDARY GENERALIZATION. THE SECOND SEIZURE TYPE, SHOWN ON THE RIGHT SIDE OF THE SLIDE, IS GENERALIZED SEIZURES. THESE ARE ALL SEIZURES THAT INVOLVE WHOLE-BRAIN GENERALIZED ELECTRICAL INVOLVEMENT FROM THE ONSET OF THE SEIZURE. THESE SEIZURES ARE DIVIDED BASED ON THE CLINICAL SEMIOLOGY OF THE PERSON DURING THE SEIZURE. THE MOST FAMILIAR TYPE OF GENERALIZED SEIZURE IS THE TONIC-CLONIC SEIZURE, WHICH IS BILATERAL EXTENSION OF THE EXTREMITIES--THE TONIC PHASE-- FOLLOWED BY THE CLONIC, OR JERKING-LIKE PHASE. NEXT SLIDE. WHAT WE WERE JUST TALKING ABOUT REFERRED TO THE CLASSIFICATION OF SEIZURES. NOW I'M GOING TO TALK ABOUT CLASSIFYING THE EPILEPSIES. AGAIN, THIS CLASSIFICATION RECENTLY CHANGED. HOWEVER, I THINK IT'S EASIEST TO UNDERSTAND THE CLASSIFICATION OF THE EPILEPSIES BY THINKING ABOUT THEM IN THE OLDER TERMINOLOGY AND THEN APPLYING THIS OLDER TERMINOLOGY TO THE NEW TERMINOLOGY. SO IN THE GOOD OLD DAYS, THERE WERE ONLY TWO TYPES OF EPILEPSIES, JUST LIKE THERE WERE ONLY TWO TYPES OF SEIZURES, AND THIS WAS SIMPLE ENOUGH FOR EVEN ME TO UNDERSTAND. EPILEPSIES WERE REFERRED TO AS EITHER PRIMARY OR SECONDARY. PRIMARY EPILEPSIES, ALSO CALLED IDIOPATHIC, MEANING WE HAD NO IDEA WHY THE PATIENT HAD EPILEPSY, USUALLY OCCUR IN CHILDREN AND YOUNG ADULTS WHO HAVE NORMAL BRAINS, AND GENERALLY ARE EASILY TREATED WITH ANTICONVULSANTS. NOW, ON THIS SLIDE, "AED" STANDS FOR ANTIEPILEPTIC DRUGS, AND I USE THAT INTERCHANGEABLY WITH THE WORD "ANTICONVULSANT." MANY OF THE PRIMARY EPILEPSIES ARE TEMPORARY CONDITIONS WITH ABATEMENT OF THE SEIZURES AND THE ABILITY TO STOP MEDICATION. ALTHOUGH IT WAS ASSUMED THAT MANY OF THESE EPILEPSIES WERE GENETIC DUE TO THEIR DISTRIBUTION IN FAMILIES, MANY OF THE GENES WERE UNKNOWN. NOW, SECONDARY EPILEPSIES, OR SYMPTOMATIC EPILEPSIES, ARE EPILEPSIES OCCURRING IN PEOPLE WHO HAVE A REASON FOR THEIR BRAIN TO RECURRENTLY HAVE ABERRANT ELECTRICAL DISCHARGES. THESE DISCHARGES OCCUR DUE TO SOME PATHOLOGY OR INSULT OF THE BRAIN. COMMONLY WE THINK ABOUT STROKES, TUMORS, OR TRAUMA. THESE EPILEPSIES HAVE VARIABLE RESPONSE TO ANTICONVULSANTS, SOME BEING VERY RESISTANT TO TREATMENT, AND THE PROGNOSIS IS ALSO VARIABLE, WITH SOMETIMES THE NEED FOR LIFELONG ANTICONVULSANT MEDICATIONS. NEXT SLIDE. THIS IS THE NEW TERMINOLOGY OF THE EPILEPSIES. THEY ARE NOW CLASSIFIED BY ETIOLOGY, AND ALTHOUGH THE NEW CLASSIFICATION IS SIMILAR TO WHAT I JUST DISCUSSED, IT REQUIRES MORE ADVANCED KNOWLEDGE IN EPILEPSY TO UNDERSTAND THE NUANCES, AND I DON'T THINK IT IS AS HELPFUL IN GENERAL PRACTICE. NEXT SLIDE. ONE CAUSE OF SECONDARY OR SYMPTOMATIC EPILEPSY IS BRAIN TRAUMA. EPILEPSY IS A WELL-KNOWN SEQUELLA OF HEAD TRAUMA, AND UNLIKE MOST OTHER OF THE SEQUELLAE, WHICH ARE APPARENT IMMEDIATELY, EPILEPSY CAN TAKE YEARS TO PRESENT AFTER THE INJURY. THERE IS A COHORT OF VETERANS FROM THE VIETNAM WAR WHO HAVE BEEN FOLLOWED AFTER SUFFERING COMBAT-RELATED HEAD TRAUMA, AND OVER 50% HAVE DEVELOPED EPILEPSY. BUT SOME OF THEM DIDN'T PRESENT WITH EPILEPSY UNTIL UP TO 20 YEARS AFTER THEIR INJURIES. FROM THIS COHORT OF VETERANS, ALONG WITH STUDIES OF VETERANS FROM ALL CONFLICTS WORLDWIDE IN THE 20th CENTURY, SLIGHTLY OVER HALF OF ALL VETERANS WHO HAVE SUFFERED A SPECIFIC TYPE OF BRAIN TRAUMA WILL EVENTUALLY DEVELOP EPILEPSY. THIS IS A STAGGERING NUMBER. NOW, IT'S UNCLEAR IF THE CURRENT CONFLICT, WHICH INVOLVES A DIFFERENT MECHANISM OF INJURY, BLASTS, AND A DIFFERENT SEVERITY, MAINLY MILD, WILL HAVE THE SAME INCIDENCE. NEXT SLIDE. A POINT THAT I ALLUDED TO EARLIER WHEN I WAS TALKING ABOUT INCIDENCE AND WANTED TO BE SURE TO REINFORCE NOW IS THAT EPILEPSY IN THE ELDERLY IS OFTEN UNDERDIAGNOSED AND MISDIAGNOSED. THIS IS AN EXTREMELY IMPORTANT POINT FOR ALL OF US WHOSE PATIENT PANELS ARE COMPRISED ALMOST ENTIRELY OF PERSONS OVER AGE 60. THE REASONS FOR UNDERDIAGNOSIS ARE MULTIPLE, BUT THE MAIN REASON IS THAT SEIZURES IN THIS AGE GROUP ARE MOST OFTEN FOCAL IN ONSET AND THE SYMPTOMS CAN BE SUBTLE, WITH LITTLE OR NO MOTOR MANIFESTATIONS. THEY OFTEN INVOLVE ALTERED MENTAL STATUS, AND IN THIS AGE GROUP, THE DIFFERENTIATION FOR ALTERED MENTAL STATUS IS LARGE. IT IS REALLY IMPORTANT TO REMEMBER TO THINK OF SEIZURE AS AN ETIOLOGY FOR ANY PAROXYSMAL COMPLAINT IN THE ELDERLY AND TO SPECIFICALLY THINK ABOUT IT WHEN FLUCTUATING MENTAL STATUS OR CONFUSION IS PRESENT. NEXT SLIDE. OK. WHAT DO YOU DO WHEN YOU THINK YOUR PATIENT MAY HAVE HAD A SEIZURE? THIS SLIDE OUTLINES THE GENERAL EVALUATION. THE FIRST KEY THING TO DO IS TO TRY TO FIGURE OUT FROM THE HISTORY THE LIKELIHOOD THE EVENT IN QUESTION REPRESENTS A SEIZURE. I THINK THIS IS A QUESTION WHERE NEUROLOGISTS OR EPILEPTOLOGISTS ARE UNDERUTILIZED. IT CAN BE VERY DIFFICULT AND OFTEN IMPOSSIBLE TO TEASE THIS OUT. MOST OFTEN, YOU WILL NEED TO EMPLOY A WITNESS TO THE EVENT TO GET AN ACCURATE DESCRIPTION. THIS TOGETHER WITH THE PATIENT'S RISK FACTORS FOR SEIZURES CAN BE HELPFUL IN PREDICTING THE LIKELIHOOD THAT THE EVENT WAS A SEIZURE. WHEN WORKING UP A SEIZURE OR A PRESUMED SEIZURE, YOU NEED TO OBTAIN A CHEMISTRY PANEL, LOOKING FOR ELECTROLYTE IMBALANCE. HYPO- OR HYPERGLYCEMIA, NATREMIA, OR KALEMIA CAN CAUSE SEIZURE. A DRUG SCREEN FOR COCAINE IN CERTAIN POPULATIONS CAN BE HELPFUL. AND CERTAINLY IF THE PATIENT IS ILL, CONSIDER A LUMBAR PUNCTURE TO EVALUATE FOR MENINGITIS. ELECTROENCEPHALOGRAPHY, OR EEG, PROVIDE THE MEANS TO EVALUATE THE ELECTRO FUNCTION OF THE BRAIN, AND IF POSITIVE, IS EXTREMELY HELPFUL. REMEMBER, HOWEVER, THAT IF NEGATIVE, IT DOES NOT MEAN THAT YOUR PATIENT DID NOT HAVE A SEIZURE OR DOES NOT HAVE EPILEPSY. AN EEG CAN ALWAYS BE DONE AS AN OUTPATIENT AFTER THEIR EVALUATION UNLESS THE PERSON DOES NOT RETURN TO BASELINE AFTER THE EVENT. IF THIS OCCURS, IT MUST BE DONE URGENTLY TO ENSURE THAT THEY ARE NOT HAVING ONGOING SEIZURES. ALL PATIENTS WHO HAVE HAD EVEN A SINGLE UNPROVOKED SEIZURE MUST HAVE BRAIN IMAGING WITH AN MRI. DO NOT WAIT UNTIL THE PATIENT HAS EPILEPSY TO OBTAIN AN MRI. A SINGLE SEIZURE WARRANTS BRAIN IMAGING. REMEMBER THAT SEIZURES IN MIDLIFE ARE LIKELY TO BE SYMPTOMATIC TO SOMETHING IN THE BRAIN, AND A COMMON PRESENTATION OF BRAIN TUMOR IS A SEIZURE. THIS DOESN'T NEED TO BE DONE URGENTLY, EITHER. HOWEVER, DO NOT FOREGO GETTING AN MRI BECAUSE THE EMERGENCY ROOM GOT A CT OF THE HEAD WHEN THEY PRESENTED. IN VETERANS, BRAIN MRI IS STANDARD OF CARE AFTER A SINGLE SEIZURE. IF YOUR FACILITY DOES NOT HAVE MRI, PLEASE REFER YOUR PATIENT TO A EPILEPSY CENTER OR A FACILITY, AND WE WILL PROVIDE THIS TESTING FOR YOU. NEXT SLIDE. I TALKED ABOUT EEG AS A TEST TO HELP EVALUATE SEIZURES. ALTHOUGH THE EEG CAN OFTEN BE NORMAL, THERE ARE PATTERNS OF EEG THAT CAN DIAGNOSE THE SEIZURE AND THE EPILEPSY TYPE. THIS IS AN EEG PATTERN FOR A GENERALIZED SEIZURE THAT REPRESENTS A PRIMARY EPILEPSY. AND THIS ONE TEST WOULD DIAGNOSE THIS PATIENT AND TELL US WHAT ANTICONVULSANT TO PUT THE PATIENT ON. NEXT SLIDE. AS I SAID, BRAIN IMAGING IS MANDATORY. IT IS KEY NOT TO MISS A BRAIN TUMOR. HOWEVER, THERE ARE OTHER ABNORMALITIES WE LOOK FOR, AND IN RECENT YEARS, THE CORRELATION BETWEEN THIS IMAGING ABNORMALITY SHOWN IN THE TOP RIGHT AND EPILEPSY HAS BECOME CLEAR. MESIAL TEMPORAL SCLEROSIS IS RELATED TO EPILEPSY, AND PERHAPS MOST IMPORTANTLY, PEOPLE WITH THIS IMAGING FINDING AND SEIZURES LOCALIZED TO THIS AREA HAVE AN EXTREMELY HIGH--OVER 90%--CHANCE OF CURATIVE EPILEPSY SURGERY. NEXT SLIDE. THESE ARE THE CURRENT MEANS TO TREAT EPILEPSY. ANTICONVULSANT DRUGS, EPILEPSY SURGERY, AND VAGAL NERVE STIMULATION ARE THE CURRENT TREATMENTS WE CAN OFFER OUR PATIENTS. THE KETOGENIC DIET IS NOT VERY EFFECTIVE IN ADULTS AND CAN BE VERY DIFFICULT TO ADMINISTER. THERE ARE SOME NEW THERAPIES THAT ARE UNDERGOING FDA REVIEW, AND I WILL BRIEFLY DISCUSS THESE. THEY ARE NOT CURRENTLY AVAILABLE FOR CLINICAL USE. NEXT SLIDE. THE GOALS OF THERAPY ARE SIMPLE: NO SEIZURES AND NO SIDE EFFECTS. GETTING TO THIS POINT, HOWEVER, IS NOT SO SIMPLE. NEXT SLIDE. IN A NEWLY DIAGNOSED PATIENT, ABOUT 70% OF PEOPLE IF PLACED ON AN APPROPRIATE ANTICONVULSANT WILL BE SUCCESSFULLY TREATED. THE WAY THAT THIS IS DONE IS TO CHOOSE A DRUG THAT CONTROLS THE SEIZURE TYPE AND USE THAT ONE DRUG IN MONOTHERAPY AT INCREASING DOSAGE UNTIL THE SEIZURES ARE COMPLETELY CONTROLLED. IF THEY ARE NOT CONTROLLED, THEN A SECOND DRUG IS TRIED. THE MOST COMMON REASON THAT THEY ARE NOT CONTROLLED OR ARE NOT SUCCESSFUL IS THAT THE ANTICONVULSANT IS NOT SLOWLY INCREASED TO THE MAXIMUM DOSE, OFTEN BECAUSE SERUM LEVELS ARE USED, AND WHEN THE DRUG IS FOUND TO BE WITHIN THE RANGE THAT A LAB DETERMINES AS THERAPEUTIC, THE TITRATION IS STOPPED. THE SERUM LEVEL SHOULD NOT BE USED IN THIS WAY. THE PATIENT THEMSELVES SHOULD BE USED, AND IF THEY ARE STILL HAVING SEIZURES, THE DRUG IS NOT THERAPEUTIC, DESPITE WHAT LEVEL IT IS, AND THAT ANTICONVULSANT SHOULD BE INCREASED. NOW, THAT'S AS LONG AS THE PATIENT IS NOT HAVING SIDE EFFECTS. THE SAME APPLIES ON THE LOW END OF THE THERAPEUTIC RANGE. IF THE PATIENT STOPS HAVING SEIZURES, IT DOESN'T MATTER IF A SERUM LEVEL IS NOT IN THE THERAPEUTIC RANGE. IT IS ACTUALLY THERAPEUTIC FOR THE PATIENT, AND THE ANTICONVULSANT SHOULD NOT BE INCREASED. NEXT SLIDE. HERE IS A LIST OF ALL THE ANTICONVULSANTS, AND THIS SLIDE IS REALLY A REFERENCE SLIDE. ON THE LEFT IS THE GENERIC NAME, IN THE MIDDLE IS THE UNIVERSAL STANDARD 3-LETTER ABBREVIATION, AND ON THE RIGHT IS THE BRAND NAME. NEXT SLIDE. THIS SLIDE PROVIDES A HISTORICAL PERSPECTIVE AND A OVERVIEW OF THE INTRODUCTION OF ANTIEPILEPTIC DRUG THERAPIES AND THEIR AVAILABLE FORMULATION CHOICES. ON THE RIGHT OF THE SLIDE, YOU CAN SEE THAT THE ADDITION OF EXTENDED RELEASE FORMULATIONS OF ESTABLISHED ANTIEPILEPTIC DRUG THERAPIES BEGAN OCCURRING IN THE MID 1990s AND REPRESENTS A DESIRE TO SIMPLIFY REGIMENS WITH EFFECTIVE THERAPIES WITH PREDICTABLE AND MANAGEABLE SIDE EFFECT PROFILES. NEXT SLIDE. THIS SLIDE LOOKS AT BOTH THE HISTORICAL INTRODUCTION OF THE ANTICONVULSANTS AND SHOWS HOW FEW CHOICES THERE WERE UNTIL THE MID 1990s. IT ALSO CLASSIFIES THE DRUGS INTO THE FIRST-GENERATION DRUGS, ON THE LEFT OF THE SLIDE, AND THE SECOND- GENERATION DRUGS, WHICH ARE SHOWN CLUSTERED THERE ON THE RIGHT OF THE SLIDE. NEXT SLIDE. THE FIRST-GENERATION DRUGS ARE OUR OLD FRIENDS. THEY'VE BEEN USED EXTENSIVELY, AND MOST OF US ARE VERY FAMILIAR WITH THEM. IN GENERAL, THEY CAN BE USED IN ALL SEIZURE TYPES, WITH THE EXCEPTION OF TEGRETOL OR CARBAMAZEPINE, WHICH ACTUALLY CAN MAKE GENERALIZED EPILEPSIES WORSE. I'M SORRY, BUT THIS SLIDE WAS TAKEN FROM A SLIDE SET OF MINE, AND THE ERROR IN UTILIZATION OF THE OLD TERMINOLOGY HERE WAS NOT CAUGHT. "FOCAL" SHOULD BE REPLACED BY THE WORD "PARTIAL." NEXT SLIDE. ONE OF THE MORE DIFFICULT PROBLEMS WITH USING THE FIRST- GENERATION DRUGS IS THAT THE DRUGS HAVE AN EFFECT ON LIVER ENZYMES AND HEPATIC METABOLISM, AND THEY GENERALLY INDUCE METABOLISM, EXCEPT FOR VALPROATE, DEPACON, WHICH INHIBITS METABOLISM. THE CLINICAL EFFECT OF THIS IS THAT OTHER MEDICATIONS CAN BE SIGNIFICANTLY ALTERED BY THIS PHARMOKINETICS, AND SOMETIMES THIS RENDERS THE OTHER DRUGS LESS OR NON-EFFECTIVE. THIS IS MOST OFTEN SEEN WITH STATENS, BIRTH CONTROL PILLS, ANTIBIOTICS, AND COUMADIN. IF YOUR PATIENT IS ON A FIRST- GENERATION DRUG, BE SURE TO LOOK AT THE OTHER MEDICATIONS TO ENSURE THAT THEY HAVE BEEN ADJUSTED ACCORDINGLY. NEXT SLIDE. THE SECOND-GENERATION DRUGS ARE THE DRUGS THAT ARE DESIGNER. THE MANUFACTURERS ACTUALLY SET OUT TO MAKE THESE DRUGS FOR EPILEPSY, AND THEY HAVE SPECIFIC MECHANISMS OF ACTION. IN GENERAL, THEY ARE SAFER TO USE, HAVE SIMPLE PHARMOKINETICS, WITH MUCH LOWER DRUG INTERACTIONS, AND ARE BETTER TOLERATED BY PATIENTS. THEY DON'T REQUIRE OR EVEN HAVE SERUM LEVELS. THIS, TOO, IS AN OLD SLIDE, AND AT THIS POINT, ALL OF THE SECOND-GENERATION DRUGS HAVE GENERICS AVAILABLE. AS MANY OF YOU ARE AWARE, THERE ARE CONTROVERSIES AROUND UTILIZING GENERIC ANTICONVULSANTS. BUT IN GENERAL, THIS IS NOT SUCH AN ISSUE WITHIN THE VA, WHERE WE HAVE A STABLE SUPPLIER, AND IT IS NOT AN ISSUE WHEN THE PATIENT IS STARTED ON A GENERIC FROM THE ONSET. IT IS MORE OF AN ISSUE WHEN YOU ARE TRYING TO CHANGE A PATIENT FROM A BRAND NAME TO A GENERIC. THESE MEDICATIONS CAN BE MORE EXPENSIVE. THAT IS ONE OF THE GREAT BENEFITS OF WORKING WITHIN THE VA, BECAUSE COST IS USUALLY NOT AN ISSUE IN OUR PATIENT POPULATION. WE HAVE THE PRIVILEGE OF CHOOSING THE BEST TREATMENT FOR OUR PATIENTS. DESPITE THE SEEMING EXPLOSION OF NEW DRUGS IN THE MID 1990s, NONE OF THESE DRUGS HAVE BEEN FOUND TO BE MORE EFFECTIVE THAN EACH OTHER OR THAN PREVIOUS DRUGS. NEXT SLIDE. HOW DO YOU CHOOSE A DRUG? THE BEST WAY IS TO TRY TO CHOOSE A DRUG THAT COVERS THE SEIZURE TYPE OF THE PATIENT, AND MY NEXT SLIDE IS GONNA ADDRESS THIS. OUTSIDE OF THIS, YOU CHOOSE ONE BASED ON THE SIDE EFFECTS BEST TOLERATED BY YOUR PATIENT, DRUG INTERACTIONS, DOSING REQUIREMENTS, AND OTHER COMORBID CONDITIONS. THIS CAN BE A DIFFICULT DECISION, AND OFTEN THESE DRUGS NEED TO BE USED LIFELONG. IF YOU ARE UNCERTAIN ABOUT ANTICONVULSANT CHOICE, PLEASE UTILIZE THE HELP OF AN EPILEPSY CENTER. NEXT SLIDE. DIAGNOSIS OF THE EPILEPSY SYNDROME, OR AT LEAST THE SEIZURE TYPE, IS THE FIRST STEP IN ANTICONVULSANT SELECTION. THIS SLIDE, WHICH DIVIDES SEIZURE TOPS--SEIZURE TYPES, I'M SORRY--AT THE TOP OF THE SCREEN, AND THEN IT LISTS THE ANTICONVULSANTS BY THEIR 3-LETTER ABBREVIATIONS. SO YOU MAY NEED TO REFER BACK TO THE SLIDE WHERE I FIRST LIST THESE OUT IF YOU'RE NOT FAMILIAR WITH THE ABBREVIATIONS. BUT THIS NICELY BREAKS DOWN THE ANTICONVULSANTS INTO NARROW SPECTRUM, THE GROUP THAT'S UNDERNEATH FOCAL THERE, AND BROAD SPECTRUM, THE GROUP AT THE BOTTOM OF THE SLIDE. BROAD SPECTRUM AGENTS CAN BE LOOSELY DEFINED AS AGENTS THAT ARE EFFECTIVE AGAINST BOTH FOCAL AND GENERALIZED SEIZURES. WHILE THESE AGENTS MAY NOT BE EFFECTIVE AGAINST ALL GENERALIZED SEIZURES, THEY HAVE A LOWER RISK THAN THE NARROW SPECTRUM AGENTS OF AGGRAVATING GENERALIZED SEIZURES. ONE EXCEPTION MAY WELL BE LAMOTRIGINE SINCE IT APPEARS TO AGGRAVATE MYOCLONIC SEIZURES. IN CONTRAST, NARROW SPECTRUM AGENTS ARE TYPICALLY EFFECTIVE AGAINST FOCAL SEIZURES AND SECONDARY GENERALIZED SEIZURES. HOWEVER, THESE AGENTS HAVE A HIGHER RISK OF AGGRAVATING GENERALIZED NON-CONVULSIVE SEIZURES SUCH AS ABSENCE AND/OR MYOCLONIC SEIZURES. IF YOU ARE UNCLEAR IF THE SEIZURE IS FOCAL OR GENERALIZED, IT IS BEST TO USE A BROAD SPECTRUM ANTICONVULSANT. AGAIN, THESE ARE THE ONES LISTED IN A GROUP AT THE BOTTOM OF THE SLIDE. THIS SLIDE IS TAKEN FROM A FEDERAL PRACTITIONER SUPPLEMENT ABOUT EVALUATING AND MANAGING PATIENTS IN EPILEPSY THAT WAS PRINTED IN 2004. IF YOU ARE INTERESTED IN RECEIVING THIS SUPPLEMENT OR THIS SLIDE, IF YOU CONTACT ME, I CAN MAIL YOU ONE. NEXT SLIDE. ANTICONVULSANTS ALL HAVE TO CROSS THE BLOOD-BRAIN BARRIER IN ORDER TO WORK AGAINST SEIZURES. ALL OF THEM CAN CAUSE SIDE EFFECTS REFERABLE TO THE BRAIN, WITH DROWSINESS, COGNITIVE IMPAIRMENT, AND INCOORDINATION BEING COMMON. NEXT SLIDE. SOME OF THE ANTICONVULSANTS HAVE SIDE EFFECTS THAT ARE SPECIFIC TO THEM, AND THIS SLIDE CAN BE USED AS A REFERENCE IN YOUR SPECIFIC PATIENTS. NEXT SLIDE. I TALKED ABOUT USING MONOTHERAPY AND THE PATIENTS' RESPONSE TO ADJUST THE DOSAGE IN THE ANTICONVULSANT. THIS IS A REMINDER NOT TO USE SERUM LEVELS TO GUIDE YOUR TREATMENT. OFTEN THE PATIENT'S DOSAGE IS ADJUSTED EITHER UP OR DOWN AFTER THE LAB CALLS A PROVIDER TO TELL THEM THAT THE LEVEL IS NOT IN THERAPEUTIC RANGE. THESE ADJUSTMENTS HAVE THE POTENTIAL TO CAUSE EITHER SEIZURES OR SIDE EFFECTS, AND THE DOSAGE SHOULD NOT BE ADJUSTED BASED ON THE LAB. ADJUST THE DOSAGE BASED ONLY ON THE PATIENT. NEXT SLIDE. DESPITE MORE THAN 20 ANTICONVULSANTS AND ALL THE NEW ANTICONVULSANTS, THE PROPORTION OF REFRACTORY PATIENTS HAS REMAINED ABOUT THE SAME. AS I SAID EARLIER, ABOUT 70% OF PATIENTS WILL BE ABLE TO BE TREATED WITH A DRUG. IT IS CLEAR FROM THE LITERATURE THAT IF A PATIENT DOES NOT RESPOND WELL TO A FIRST DRUG, THE CHANCE THAT THEY WILL BECOME SEIZURE-FREE DECREASES WITH EACH ADDITIONAL DRUG, AND ABOUT 20% OF PATIENTS WILL NOT BECOME SEIZURE-FREE AND WILL BE REFRACTORY TO MEDICATION-- A GROUP THAT WE CALL MEDICALLY REFRACTORY EPILEPSY. NEXT SLIDE. THIS IS THE DEFINITION OF MEDICALLY REFRACTORY EPILEPSY. IF YOU HAVE TRIED TWO ANTICONVULSANTS ON YOUR PATIENTS AND THEY HAVE NOT ACHIEVED SEIZURE FREEDOM, IT IS LIKELY THAT THEY WILL FALL INTO THIS CATEGORY. THESE PATIENTS HAVE INCREASED MORBIDITY AND MORTALITY, AND OFTEN THE BEST OPTION FOR THESE PATIENTS IS SURGERY IF THEY ARE A CANDIDATE. PATIENTS THAT FALL INTO THIS CATEGORY NEED TO SEEK HELP FROM AN EPILEPSY CENTER. NEXT SLIDE. WHEN SEIZURES ARE NOT COMPLETELY CONTROLLED BY MEDICATION, THE PATIENT NEEDS TO BE EVALUATED. THEY NEED VIDEO EEG TO ENSURE THAT THE SEIZURES ARE INDEED ELECTRICAL EVENTS AND TO CORRECTLY DIAGNOSE THE TYPE OF SEIZURE TO ENSURE THE TREATMENT IS CORRECT. THIS EVALUATION CAN ALSO IDENTIFY PATIENTS WHO MAY BE SURGICAL CANDIDATES FOR THEIR EPILEPSY. NEXT SLIDE. THIS IS A PICTURE OF OUR MONITORING UNIT IN SAN FRANCISCO. THE PATIENTS ARE ADMITTED TO A STANDARD INPATIENT ROOM, WHERE EEG AND VIDEO IS HARDWIRED INTO THE WALL, AND IT CAN BE RECORDED CONTINUOUSLY. THEIR ANTICONVULSANT MEDICATION IS USUALLY WITHDRAWN WITH THE INTENT OF CAPTURING THEIR EVENTS AND CHARACTERIZING THESE. NEXT SLIDE. DURING THIS ADMISSION, WE CAN ALSO PROVIDE OTHER SPECIFIC TESTING TO HELP IN POSSIBLE TREATMENTS. NEXT SLIDE. THE SPECIALIZED TESTING ALLOWS FOR OPTIONS OF TREATMENTS FOR PATIENTS AND ALLOWS US TO GUIDE SURGICAL TREATMENT. NEXT SLIDE. EPILEPSY SURGERY IS THE TREATMENT OF CHOICE FOR CERTAIN PATIENTS, AND IN MEDICALLY REFRACTORY PATIENTS MAY BE THE ONLY EFFECTIVE MODALITY. THIS TREATMENT IS SIGNIFICANTLY UNDERUTILIZED ACROSS THE UNITED STATES AND SPECIFICALLY WITHIN THE VA. NEXT SLIDE. ANOTHER THERAPY AVAILABLE TO CERTAIN PATIENTS IS THE VAGAL NERVE STIMULATOR. THIS IS A PACEMAKER-LIKE DEVICE IMPLANTED IN THE CHEST. IT OFTEN REDUCES SEIZURES BUT USUALLY DOES NOT COMPLETELY CONTROL SEIZURES. IT HAS VERY FEW SIDE EFFECTS AND WORKS ABOUT THE SAME AS AN ANTICONVULSANT DRUG. NEXT SLIDE. THERE ARE TWO NEW TREATMENTS ON THE HORIZON. ALTHOUGH THE PRESS TALKED ABOUT USING DEEP BRAIN STIMULATION, DBS, AND THERE ARE GOOD STUDIES SHOWING EFFE3CTIVENESS, THIS THERAPY WILL NOT BE AVAILABLE IN THE U.S. IN THE NEXT FEW COMING YEARS. THE THERAPY THAT YOU WILL BE HEARING ABOUT IS LABELED UNDER THE NAME NEUROPACE, AND IT INVOLVES IMPLANTATION OF ELECTRODES IN AN AREA OF THE BRAIN AS WELL AS IMPLANTATION OF A PACEMAKER-LIKE DEVICE INTO THE SKULL. NEXT SLIDE. THIS SLIDE DETAILS WHEN TO REFER A PATIENT TO AN EPILEPSY SPECIALIST. I THINK THAT THIS MOST IMPORTANT DETERMINANT IS WHENEVER YOU HAVE A QUESTION OR NEED HELP CARING FOR A PATIENT WITH EPILEPSY. THE CENTERS ARE HERE TO HELP YOU AS A PROVIDER AND TO HELP VETERANS. NEXT SLIDE. ONE POINT, HOWEVER, NEEDS TO BE UNDERSCORED. IF YOU HAVE A PATIENT THAT DOES NOT HAVE COMPLETE SEIZURE CONTROL, THEY SHOULD BE REFERRED FOR FURTHER EVALUATION. NEXT SLIDE. NOW I'M GOING TO SWITCH GEARS AND TALK ABOUT THE NEW EPILEPSY CENTERS OF EXCELLENCE AND THEIR ORGANIZATIONS. NEXT SLIDE. THE EPILEPSY CENTERS WERE ESTABLISHED IN 2008 AS A CONGRESSIONAL MANDATE UNDER PUBLIC LAW 110. THIS WAS DONE IN CONGRESS IN RESPONSE TO THE ANTICIPATED NEED FOR EPILEPSY CARE, KNOWING THAT IN ALL PRIOR MILITARY CONFLICTS, OVER HALF OF VETERANS WITH PENETRATING HEAD INJURY WILL EVENTUALLY DEVELOP EPILEPSY. THIS WAS DONE PROSPECTIVELY, AND I AM DELIGHTED TO BE PART OF A SYSTEM THAT HAS BEEN ALLOWED TO BE BUILT BEFORE THERE WAS A PROBLEM THAT NEEDED TO BE FIXED. THIS IS DEFINITELY A SHIFT IN PARADIGM FOR HEALTH CARE. NEXT SLIDE. THE REQUIREMENTS OF THE PUBLIC LAW ARE AS FOLLOWS: VETERANS AFFAIRS WAS TO ESTABLISH 4 TO 6 EPILEPSY CENTERS AND APPOINT AN OVERALL DIRECTOR. EACH OF THE CENTERS MUST BE LINKED TO AN EXISTING POLYTRAUMA CENTER AND MUST BE LINKED TO AN ACADEMIC CENTER AND CONDUCT RESEARCH. THEY MUST BE ESTABLISHED BY A PEER REVIEW PANEL, BE GEOGRAPHICALLY DISPERSED, AND BE INVOLVED WITH EDUCATION AND FELLOWSHIP TRAINING. THE FUNDING LEVEL WAS SET AT $6 MILLION PER YEAR FOR THE OVERALL SYSTEM. NEXT SLIDE. BASED ON THESE REQUIREMENTS, AN ORGANIZATION WAS CREATED THAT DIVIDED THE UNITED STATES INTO 4 REGIONS, EACH LINKED TO ONE OF THE 4 POLYTRAUMA CENTERS, AND EACH HAD ESTABLISHED VA CENTERS WHO ARE ALREADY INVOLVED IN EPILEPSY CARE WITHIN THE VA. AS YOU CAN SEE FROM THIS WRITTEN SLIDE--AND I'LL SHOW THIS ON A PICTURE IN A MINUTE-- EACH OF THE STATES ARE DIVIDED INTO REGIONS. SO IF YOU LOCATE THE STATE THAT YOU'RE IN ON THE RIGHT SIDE OF THE SLIDE, YOU CAN LOOK AT THE REGION THAT YOUR STATE IS AFFILIATED WITH. NEXT SLIDE. PICTORIALLY, THE REGIONS LOOK LIKE THIS. NOW, THIS IS NOT AN EVEN DIVISION ACROSS THE UNITED STATES, BUT REMEMBER THAT OUR POPULATION DOES NOT LIVE IN AN EVEN DIVISION AND THAT THERE IS AN ABUNDANCE OF VETERANS IN CERTAIN STATES, LIKE FLORIDA. IF YOU LOOK ON THIS MAP AND IDENTIFY YOUR STATE AND YOUR REGION, REMEMBER ITS COLOR BECAUSE I'M GONNA TALK ON THE NEXT SLIDES ABOUT THE COLOR. THIS'LL GUIDE YOU ON DETERMINING WHERE YOU SHOULD SEEK REFERRAL HELP. SO, LOOKING AT THIS MAP, IF YOU ARE IN A YELLOW STATE, THAT IS THE NORTHEAST REGION. NEXT SLIDE. AND THESE ARE THE CENTERS IN THE NORTHEAST REGION WHO ARE READY TO HELP YOU AND YOUR PATIENTS. I HAVE A SPECIFIC SLIDE AT THE END WITH ACTUAL PHONE NUMBERS, AND ALL OF THE PHYSICIANS CAN BE FOUND ON THE GLOBAL VA OUTLOOK. NEXT SLIDE. THESE ARE THE NORTHWEST SLIDES. IF YOU ARE IN A GREEN STATE, THIS IS YOUR REGION. NEXT SLIDE. THE SOUTHEAST SITES, THE RED STATES ON THE MAP, ARE IN THIS REGION. NEXT SLIDE. AND THE BLUE STATES, THE SOUTHWEST SITES, ARE ON THIS SLIDE. NOTE THAT THERE IS GOING TO BE A SITE IN SAN ANTONIO WHICH IS ALSO A PLANNED SITE FOR A FIFTH VA POLYTRAUMA CENTER. THAT'S ALREADY BEING BUILT AND WILL BE FINISHED SHORTLY. NEXT SLIDE. HERE ARE THE NAMES, STATION NUMBERS, AND CONTACT INFORMATION FOR EACH SITE. PLEASE FEEL FREE TO CONTACT ANY OF US IN ANY REGION, EVEN OUTSIDE YOUR REGION, FOR HELP AND INFORMATION. ALSO, YOU CAN UTILIZE OUR WEBSITE FOR THE SAME. I HAVE THE ADDRESS FOR THE WEBSITE AT THE END OF THIS PRESENTATION. IN THE FUTURE, WE HOPE TO BE ABLE TO HAVE A REFERRAL SYSTEM BUILT INTO THE WEBSITE FOR BOTH PROVIDERS AND VETERANS. NEXT SLIDE. THE GOALS OF THE EPILEPSY CENTERS ARE TO DELIVER THE HIGHEST-QUALITY CARE TO VETERANS WITH EPILEPSY, TO ESTABLISH A NETWORK FOR REGIONAL EPILEPSY CARE THAT COVERS THE ENTIRE UNITED STATES SO THAT VETERANS LIVING IN ANY AREA HAVE ACCESS TO TERTIARY-LEVEL CARE, TO PROMOTE OUTREACH AND EDUCATIONAL EFFORTS IN THE COMMUNITY, AND TO PROVIDE AN EFFICIENT AND COST-EFFECTIVE MECHANISM OF CARE DELIVERY THAT REDUCES FEE-BASED SPENDING. NEXT SLIDE. HERE ARE SOME WEB RESOURCES THAT HAVE ADDITIONAL INFORMATION AVAILABLE AND CAN BE USED BY BOTH YOU AND YOUR PATIENTS. HERE'S OUR WEBSITE ADDRESS. THANK YOU FOR YOUR ATTENTION, AND I WANT TO THANK SEAN GAMBLE AND THE EMPLOYEE EDUCATION SYSTEM FOR THEIR PARTNERSHIP AND EXCELLENT SUPPORT WITH THIS PROGRAM. PLEASE PLAN ON TUNING IN TO OUR NEXT AUDIO CONFERENCE ON MAY 4, WHEN DR. PAUL RUTECKI FROM THE NORTHWEST REGION WILL TALK ABOUT EPILEPSY AND TRAUMATIC BRAIN INJURY. IF YOU WANT CONTINUING EDUCATION CREDITS, REMEMBER TO FILL OUT THE REQUIRED EVALUATION. THE EPILEPSY CENTERS ARE ESPECIALLY INTERESTED IN YOUR FEEDBACK REGARDING FUTURE PROGRAMMING. WE WANT TO MEET YOUR NEEDS. SO LET US KNOW WHAT YOU'D LIKE TO HEAR ABOUT. THANK YOU, AND I'M OPEN FOR QUESTIONS. - THANK YOU, DR. PARKO, FOR THAT REALLY GOOD POWERPOINT PRESENTATION. IF ANYBODY HAS ANY QUESTIONS, DR. PARKO IS ON THE LINE. IS THERE ANY QUESTIONS? - YES. I'M SPEAKING FROM [INDISTINCT]. - ALL RIGHT. GO AHEAD. - AND I WANT TO KNOW WHAT IS THE BREAKTHROUGH SEIZURE? - THE PHONE IS BREAKING UP A LITTLE, BUT I THINK THE QUESTION IS, WHAT IS A BREAKTHROUGH SEIZURE? - RIGHT, RIGHT. - OK. THANK YOU FOR ASKING THAT QUESTION. A BREAKTHROUGH SEIZURE IS A SEIZURE THAT OCCURS WHEN A PATIENT IS ON A KNOWN REGIMEN OF DRUGS AND IS USUALLY CONTROLLED BUT THEN THEY HAVE A SEIZURE. - OH, GREAT. THANK YOU. - A SEIZURE THAT BREAKS THROUGH MEDICATION. DOES THAT ANSWER YOUR QUESTION? - RIGHT. THANK YOU. - THANK YOU. - [INDISTINCT]. DR. PARKO, THANK YOU FOR THE EXCELLENT REVIEW. I HAVE TWO QUESTIONS. ONE IS, WHAT'S THE MAXIMUM DOSE FOR LEVETIRACETAM? AND THE SECOND ONE IS, IS THAT BASICALLY, A PATIENT OF MINE WHO WAS SEEN AT MADISON VA 3 YEARS AGO AND I WOULD LIKE TO REFER HIM BACK TO AN EPILEPSY CENTER. AND SINCE WE ARE IN THE SOUTHWEST, DO I NEED TO SEND HIM TO HOUSTON VA? AND I'M NOT AWARE OF HOUSTON VA DOING EPILEPSY [INDISTINCT]. - EXCELLENT. THANK YOU FOR THOSE QUESTIONS. LET ME TAKE THEM ONE AT A TIME. THE FIRST ONE WAS THE MAXIMUM DOSE OF LEVETIRACETAM OR KEPPRA. - YES. - AND WITH ALL THE ANTICONVULSANTS, THERE'S NOT REALLY A MAXIMUM DOSE. MOST EPILEPTOLOGISTS CONTINUE TO INCREASE A DOSAGE AS LONG AS THE PATIENT HAS A RESPONSE. AND SO WITHIN THE PDR, A DOSE THAT'S LISTED AS A MAXIMUM DOSE IS USUALLY NOT A MAXIMUM DOSE THAT WE WILL USE. A COMMON DOSE FOR KEPPRA IS 3 GRAMS A DAY, BUT AGAIN, I HAVE PATIENTS ON MUCH LOWER DOSE THAN THAT, AND I HAVE PATIENTS ON MUCH HIGHER DOSE. DOES THAT ANSWER THAT QUESTION? - YES. I MEAN, I TRY IT UP TO 3,000, AND THEN NO RESPONSE. SO I BACK IT OFF FROM THAT. SO... - AND AGAIN, THE MAXIMUM DOSE--IF YOU HAVE NO RESPONSE, THEN WE TEND NOT TO GO UP REALLY HIGH. BUT IF YOU'RE GETTING A GOOD RESPONSE IN A PATIENT, YOU CAN PUSH A DRUG VERY, VERY HIGH AS LONG AS THE PATIENT IS TOLERATING IT AND DOESN'T HAVE SIDE EFFECTS. - OK. THANK YOU. - BUT IF THEY'D HAD NO RESPONSE, I WOULDN'T CONTINUE PUSHING. - OK. - NOW, THE SECOND QUESTION IS ACTUALLY A GREAT QUESTION, AND THANK YOU FOR BRINGING IT UP. YOU HAVE A PATIENT THAT WENT TO MADISON, BUT YOU'RE CURRENTLY WITHIN THE SOUTHWEST REGION. THESE REGIONS AND THIS DIVISION ARE NOT HARD AND FAST. THEY ARE PUT THERE SPECIFICALLY TO TRY TO HELP DIRECT CARE AND NOT TO IMPEDE CARE. SO IF YOU HAVE A PATIENT OR A RELATIONSHIP WITH MADISON, YOU CAN CONTINUE TO UTILIZE THAT RELATIONSHIP, AND CERTAINLY IF THEY KNOW YOUR PATIENT, IT'S PROBABLY THE BEST THING FOR THAT PATIENT. HOWEVER, IF THE PATIENT WANTS A CENTER CLOSER BY YOU, THEN YOU CAN USE ONE OF THE CLOSER ONES. HOUSTON AND SAN ANTONIO BOTH DO FULL--THEY'RE COMPREHENSIVE CENTERS, SO THEY DO BOTH EPILEPSY AND MONITORING. BUT ANYPLACE--I MEAN, THIS IS REALLY VETERAN-DEPENDENT. SOMETIMES THERE'S A VETERAN THAT LIVES IN A CERTAIN AREA BUT THEY HAPPEN TO HAVE CLOSE FAMILY CLOSE TO A VA CENTER, AND THAT'S AN OK REASON, ALSO, TO REFER TO A SPECIFIC CENTER. DON'T FEEL BOUND BY THE BOUNDARIES. THEY'RE SUPPOSED TO HELP, NOT INHIBIT. DOES THAT HELP? - YES, DEFINITELY. THANK YOU. - DR. PARKO? - YES. - MY NAME IS KIRSTEN. I'M AT THE LITTLE ROCK VA AT McCLELLAN, AND I WAS JUST CURIOUS--I'M AN EEG TECH--JUST FROM A TECH STANDPOINT, HOW MANY BEDS DO YOU GUYS TYPICALLY HAVE IN AN EPILEPSY CENTER OF EXCELLENCE? - HI, KIRSTEN. IT DEPENDS ON THE CENTER ITSELF. HERE IN SAN FRANCISCO, WE HAVE 4 MONITORING UNIT BEDS. - OK. THANK YOU. - NOW, EVERYBODY DOES IT A LITTLE DIFFERENT. WE HAVE 4 FIXED BEDS, AND WE HAVE A PORTABLE ONE THAT WE USE FOR OUR ICU BECAUSE WE DON'T HAVE A FIXED BED IN OUR ICU. BUT USUALLY CENTERS ARE DIFFERENT. - OK. - DR. PARKO? - YES. - YEAH. I'M CALLING FROM THE MIDWEST STATES, AND WE SEEM TO HAVE A PROBLEM HERE AS FAR AS WITH THE USE OF THE VAGAL NERVE STIMULATOR. AND SOME OF THE EPILEPSY CENTERS THAT WE REFER TO FOR OUR MONITORING THAT OUR PATIENTS GO TO BE EVALUATED ARE VERY MUCH AGAINST EVEN RECOMMENDING ANYBODY FOR THE VAGAL NURSE STIMULATOR. WOULD YOU TELL ME WHAT YOUR PARAMETERS ARE AS FAR AS FOR USE OF THE VAGAL NERVE STIMULATOR WHEN THE PATIENT IS APPROPRIATE FOR IT AND WHY SOME OF THESE VAs HAVE SUCH A STANCE AGAINST THE USE OF THIS? - SURE. CAN YOU TELL ME WHAT YOU MEAN WHEN YOU SAY YOU HAVE VNS PROBLEMS? DO YOU MEAN PATIENTS ARE HAVING-- - WE HAVE PATIENTS THAT--YOU KNOW, WE HAVE SOME PEOPLE THAT HAVE THE LEFT TEMPORAL LOBES AND THEY HAVE, YOU KNOW, LANGUAGE AND THINGS COMING FROM WITHIN THE REGION. THEY CAN'T BE CONTROLLED, OR THEY DO NOT WANT A MORE INVASIVE EPILEPSY SURGERY. AND WE CAN'T CONTROL THEM ON ANY ANTICONVULSANTS. WE REFER UP TO THE CENTER AS FAR AS FOR MONITORING, AND THEY TALK VERY MUCH AGAINST THE VAGAL NERVE STIMULATOR, SEND THEM BACK HOME ON MEDICATIONS THAT WE TRIED OR THAT HAVEN'T WORKED, AND THE PATIENT THEN HAS A VERY BITTER TASTE IN THEIR MOUTH AND THEY DON'T EVEN WANT TO HEAR ABOUT VAGAL NERVE STIMULATORS. SO CAN YOU KIND OF GIVE YOUR OPINION? - SURE. I CAN TELL YOU WHAT MY OPINION IS, AND IT'S HARD WITHOUT TALKING ABOUT A SPECIFIC PATIENT TO KNOW THE DETAILS, BUT VAGAL NERVE STIMULATION IS A THERAPY THAT WORKS ABOUT AS WELL AS AN ANTICONVULSANT. IT RARELY CAUSES COMPLETE SEIZURE FREEDOM. THE NICE PART OF VAGAL NERVE STIMULATION IS THAT IT TENDS TO HAVE LESS CENTRAL NERVOUS SYSTEM SIDE EFFECTS--SO LESS SEDATION AND COGNITIVE IMPAIRMENT. IT DOES REQUIRE THAT IT'S PUT IN IN A PLACE WHERE THE SURGEONS, EITHER ENT OR NEUROSURGEONS, KNOW HOW TO DO IT, AND IT HAS TO BE MONITORED OVER THE COURSE OF TIME WITH SOMEONE WHO KNOWS HOW TO PROGRAM IT. THE EFFECTS OF THE PROGRAMMING, UNLIKE A MEDICATION, CAN TAKE A LONG TIME TO TAKE EFFECT. SO IF YOU CHANGE PARAMETERS, THE CHANGE DOESN'T HELP RIGHT AWAY. IT CAN TAKE MONTHS TO TAKE EFFECT. WE UTILIZE VAGAL NERVE STIMULATION IN PATIENTS THAT HAVE NOT RESPONDED TO MEDICATION AND ARE NOT SURGICAL CANDIDATES, AND THE REASON THAT I PUT THAT CAVEAT IN THERE IS THAT FOR MOST PATIENTS THAT ARE SURGICAL CANDIDATES, THEIR CHANCES OF HAVING SEIZURE FREEDOM ARE MUCH HIGHER IF THEY UNDERGO AN EPILEPSY SURGERY, A RECEPTIVE SURGERY, THEN IF THEY HAVE VNS. SO MY FIRST LINE OF TREATMENT FOR THOSE PATIENTS IS REALLY TO RECOMMEND AN EPILEPSY SURGERY. NOW, NOT EVERYBODY WANTS AN EPILEPSY SURGERY, AND NOT EVERYBODY IS ACTUALLY A CANDIDATE FOR EPILEPSY SURGERY. SO IN THAT SELECT GROUP OF PATIENTS, WE DO USE VNS. I LIKE TO USE VNS, AND OUR CENTER OFFERS IT AND IS VERY COMFORTABLE GIVING IT. IT'S A LITTLE DIFFICULT WHEN PATIENTS ARE REFERRED FROM DISTANCE BECAUSE AGAIN IT TAKES ONGOING MANIPULATION OR PROGRAMMING OF THE VNS THAT HAS TO BE DONE BY SOMEONE THAT KNOWS HOW TO DO THAT. I HAVE AN EXPEDIATED METHOD THAT WE USE FOR OUR PATIENTS THAT ARE FAR AWAY, AND IT'S PRETTY WELL TOLERATED. BUT DIFFERENT CENTERS WILL HAVE DIFFERENT EXPERIENCE AND DIFFERENT SURGEONS WHO WILL OR WILL NOT BE COMFORTABLE PLACING IT. CERTAINLY IF IT'S SOMETHING THAT YOUR PATIENT WANTS, I WOULD ENCOURAGE YOU TO FIND A CENTER THAT WILL PROVIDE IT FOR THAT PATIENT, AND MOST ALL US WILL, BUT I'LL OFFER BECAUSE I'M ON THE LINE. THE SAN FRANCISCO CENTER CERTAINLY WILL, AND IF YOU HAVE A PATIENT WHO IS A CANDIDATE, WE'D BE HAPPY TO HELP YOU WITH THAT. YOU CAN CONTACT ME, AND WE CAN SET THAT UP. - THANK YOU. - DID THAT ANSWER THE QUESTION? - DR. PARKO? - YES. - HI. THIS IS DR.[INDISTINCT] FROM CLEVELAND AT THE LOUIS STOKES VA. TWO QUESTIONS: ONE OF THEM, AMBULATORY VIDEO EEG, AND THE OTHER ONE, ICU BEDSIDE CONTINUOUS EEG MONITORING. THE FIRST QUESTION--IT'S PAST THE [INDISTINCT] COMPUTER TECHNOLOGY, CURRENT EEGs, AMBULATORY--A FEW OF THEM NOW WITH VIDEO... [CLICKING AND STATIC] THEY HAVE PRETTY GOOD QUALITY. SO DO WE HAVE--I MEAN, IS THERE ANY USE OF AMBULATORY VIDEO EEG IN CARING FOR PEOPLE WITH EPILEPSY? AND THERE ARE SOME ADVANTAGES AND CERTAINLY SOME DISADVANTAGES, SEVERAL DISADVANTAGES. [INDISTINCT]. THE SECOND ONE IS, THE BEDSIDE MONITORING, IT'S REALLY TOUGH TO TRANSPORT THIS ICU PATIENT [INDISTINCT]. AND SO BEFORE SENDING A PATIENT TO ANOTHER UNIVERSITY, A LOCAL UNIVERSITY, WE WILL TRY TO DO THE BEST WE CAN HERE AT CLEVELAND'S VA, DOING VIDEO EEGs ON THE BEDSIDE. IS THERE ANY GUIDELINES ABOUT WHAT POINT WE HAVE TO TRANSFER THE PATIENT TO ANOTHER [INDISTINCT] UNIT? LIKE A SAFETY OR ANY OTHER GUIDELINE THAT IS CLARIFIED OR [INDISTINCT]. THANK YOU. - WELL, LET ME START WITH THE AMBULATORY VIDEO EEG. THIS IS SOMETHING THAT IS OFFERED AT SOME OF THE CENTERS. IT'S NOT SOMETHING THAT I UTILIZE AT THE SAN FRANCISCO VA. I HAVE NOT FOUND--TECHNOLOGY IS IMPROVING, BUT I HAVE NOT FOUND IN THE PAST THE AMBULATORY EEG IS ALL THAT MUCH BETTER OVER OUTPATIENT EEG, AND FOR MOST OF THE PATIENTS THAT YOU'RE LOOKING TO CHARACTERIZE CELLS AND TO TRY TO FIGURE OUT WHAT IS GOING ON BECAUSE THEY'RE MEDICALLY REFRACTORY, I THINK THE OPTION FOR COMING INTO IN ACTUAL FIXED UNIT IS A MUCH BETTER OPTION BECAUSE OFTEN THAT CAN BE DONE IN THE SAME AMOUNT OF TIME AS THE AMBULATORY EEG, AND IT JUST SHOWS HIGHER-QUALITY DATA. USUALLY IF AN AMBULATORY EEG IS POSITIVE, THE NEXT STEP IS TO GET VIDEO EEG, ANYWAY, AND SO I THINK IT'S BEST TO DO THAT FROM THE PATIENT'S STANDPOINT ALL AT ONCE UP FRONT. AGAIN, THAT'S AN OPINION. DIFFERENT PEOPLE HANDLE THIS DIFFERENTLY. NOW, AS FAR AS THE ICU RECORDINGS, THERE AREN'T GUIDELINES FOR TRANSFER. THE GUIDELINES WOULD BE, YOU KNOW, TO TRANSFER CERTAINLY IF YOU'RE UNCOMFORTABLE WITH IT OR IF IT'S SOMETHING THAT YOU DON'T FEEL CAN BE HANDLED AT THE CLEVELAND VA FOR WHATEVER REASON--AND EACH VA HAS DIFFERENT REASONS. SOMETIMES THERE'S NOT TECHNOLOGICAL SUPPORT. SOMETIMES THERE'S NOT EQUIPMENT. YOU KNOW, SOMETIMES NURSING CARE BECOMES AN ISSUE. SO THERE AREN'T STRICT GUIDELINES FOR THAT, AND IF YOU ARE IN A SITUATION WHERE YOU'RE DEALING WITH A PATIENT AND YOU'RE MONITORING IN THE ICU, I THINK CALLING A EPILEPTOLOGIST AT ANY OF THE CENTERS AND SAYING, "I WANT TO RUN THIS BY YOU. WHAT WOULD YOU DO? WHAT DO YOU THINK IS BEST?" IS COMPLETELY APPROPRIATE, AND THAT'S WHAT WE'RE HERE FOR, TO TRY TO HELP YOU DECIDE WHAT IS EASIEST AND BEST FOR YOU. - THANK YOU VERY MUCH. CAN I ASK ONE QUICK QUESTION? - SURE. - I WAS TRAINED [INDISTINCT] ANN ARBOR. THIS IS NOT A COMPREHENSIVE CENTER OF EXCELLENCE, BUT WE ARE TRYING TO DO OUR BEST. SO WE TEND TO [INDISTINCT]. WE ARE TRYING TO DO LIMITED DIAGNOSTIC MONITORING. IT'S GONNA BE VERY SELECTIVE PATIENTS. WE DON'T HAVE ENOUGH SAFETY PRECAUTIONS IN PLACE, SO WE CANNOT CHANGE TO MAKE PATIENTS [INDISTINCT]. IF THEY ARE ON MEDICATION OR THEY ARE NOT MEDICATION AND DO NOT CHANGE MEDICATION. ANY GUIDELINES FOR DIAGNOSIS? I UNDERSTAND [INDISTINCT] REVIEWING THE AFTER MORTALITY [INDISTINCT] ...IMPROVE THE SAFETY DURING VIDEO MONITORING. IS THERE ANY GUIDELINE FOR DIAGNOSTIC VIDEO EEG MONITORING? - THERE ARE GUIDELINES FOR SAFETY IN HOW TO SET UP VIDEO EEG. BUT THOSE ARE--YOU CAN FIND THOSE ON THE NATIONAL EPILEPSY MONITORING CENTER'S...E-MAIL ME, AND, I'M SORRY, I'LL SEND YOU THE WEBSITE. IT'S ESCAPING ME. THE NATIONAL ORGANIZATION THAT HANDLES MONITORING GROUP IS ESCAPING ME, BUT IF YOU E-MAIL ME, I WILL SEND YOU THOSE GUIDELINES. I THINK IT'S FABULOUS THAT YOU'RE OFFERING THAT SERVICE THERE TO YOUR PATIENTS. YOU DON'T NEED TO BE AN EPILEPSY CENTER OF EXCELLENCE TO TAKE GREAT CARE OF PATIENTS WITH EPILEPSY. AND CERTAINLY, WE WOULD WANT TO SUPPORT THAT ENDEAVOR. AND E-MAIL ME, AND I WILL SEND YOU THOSE GUIDELINES. - THANK YOU. - OK. THANK YOU SO MUCH FOR JOINING THIS AUDIO CONFERENCE, AND HOPE TO HEAR FROM YOU AND BE ON THE CALL WHEN DR. RUTECKI GIVES THE NEXT EVENT. - THANK YOU, DR. PARKO, FOR TAKING THE TIME TO DO THE PRESENTATION. - THANK YOU, DR. PARKO. - YOU'RE WELCOME. - THANK YOU.