Clinical trial NCT04553354: Cortical Resections in Drug Resistant Epilepsy
Official title: Evaluation of Safety and Efficacy of Cortical Resections for Seizure Control for Patients With Drug Resistant Epilepsy
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Epilepsy Surgery
Drug Resistant Epilepsy
Lead sponsor: Assiut University
Sponsor class: OTHER
First posted: 2020-09-17
Enrollment: 35
Sex: ALL
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: all patients with focal epilepsy not responding to medical treatment

Brief summary: The aim of the study is to evaluate safety and efficacy of epilepsy surgery in the form of cortical resections in patients with refractory epilepsy and to review outcomes of resection procedures in focal epilepsy.

Detailed description: Nearly one-third of epilepsy patients are refractory/resistant to medical treatment . Refractory or drug-resistant epilepsy is defined as resistance to treatment with two appropriately chosen and tolerated antiepileptic drugs (AED) . Nevertheless, epilepsy surgery is an effective alternative treatment for some patients as it suggests seizure freedom . During the past 3 decades, surgery has found more acceptance as an option for drug-resistant epilepsy . Developments made in surgical techniques (cortical resections) have significantly increased the effectiveness and safety of these techniques; as such techniques have been demonstrated to improve seizure control/freedom outcomes and enhanced quality of life in patients . Neuro imaging developments with the introduction of positron emission tomography (PET), magnetic resonance imaging (MRI), functional MRI, single-photon emission computed tomography (SPECT), and magneto encephalography, electroencephalography and neuronavigation have facilitated the presurgical evaluation of patients, thus providing the lesion-directed surgeries more possible , also reducing the number and severity of complications . Complications of epilepsy surgery including failure to stop seizures and neuropsychological, psychosocial, or psychiatric impairment are still difficult to define, and there is no universal consensus in this regard .

This technique characterized by :

• Once the epilepsy focus is located by using interpretation and collection of data from functional MRI, EEG long term video and clinical findings, the specific surgery involved in treatment is decided on. The type of surgery depends on the location of the seizure focal point. Surgeries for epilepsy treatment include, but are not limited to, the following types: temporal lobe resection, ground temporal and extra temporal resection, parietal resection, occipital resection, frontal resection, extra temporal resection.

Eligibility criteria: Inclusion Criteria:

* All patients with focal epilepsy who are refractory to medical treatment.
* Patients accept surgical maneuver

Exclusion Criteria:

* Epileptic patients responding to medical treatment.
* Patients refusing surgical intervention.
* Patients unfit for brain surgery.
* Multi focal or generalized seizures.

Primary outcomes:
measure: control of focal epilepsy in drug resistant epileptic patients
timeFrame: baseline
measure: decrease incidence of drug adverse effects in drug resistant focal epilepsy
timeFrame: baseline
Secondary outcomes:
measure: change quality of life of patients with drug resistant epilepsy
timeFrame: baseline
Other outcomes:
Locations:
Study officials:
References:
citation: Kwan P, Brodie MJ. Early identification of refractory epilepsy. N Engl J Med. 2000 Feb 3;342(5):314-9. doi: 10.1056/NEJM200002033420503.
citation: Kwan P, Arzimanoglou A, Berg AT, Brodie MJ, Allen Hauser W, Mathern G, Moshe SL, Perucca E, Wiebe S, French J. Definition of drug resistant epilepsy: consensus proposal by the ad hoc Task Force of the ILAE Commission on Therapeutic Strategies. Epilepsia. 2010 Jun;51(6):1069-77. doi: 10.1111/j.1528-1167.2009.02397.x. Epub 2009 Nov 3.
citation: Engel J Jr, McDermott MP, Wiebe S, Langfitt JT, Stern JM, Dewar S, Sperling MR, Gardiner I, Erba G, Fried I, Jacobs M, Vinters HV, Mintzer S, Kieburtz K; Early Randomized Surgical Epilepsy Trial (ERSET) Study Group. Early surgical therapy for drug-resistant temporal lobe epilepsy: a randomized trial. JAMA. 2012 Mar 7;307(9):922-30. doi: 10.1001/jama.2012.220.
citation: Engel J Jr, Wiebe S, French J, Sperling M, Williamson P, Spencer D, Gumnit R, Zahn C, Westbrook E, Enos B; Quality Standards Subcommittee of the American Academy of Neurology; American Epilepsy Society; American Association of Neurological Surgeons. Practice parameter: temporal lobe and localized neocortical resections for epilepsy: report of the Quality Standards Subcommittee of the American Academy of Neurology, in association with the American Epilepsy Society and the American Association of Neurological Surgeons. Neurology. 2003 Feb 25;60(4):538-47. doi: 10.1212/01.wnl.0000055086.35806.2d.
citation: Cukiert A, Rydenhag B, Harkness W, Cross JH, Gaillard WD; Task Force for Pediatric Epilepsy Surgery for the ILAE Commissions of Pediatrics and Surgical Therapies. Technical aspects of pediatric epilepsy surgery: Report of a multicenter, multinational web-based survey by the ILAE Task Force on Pediatric Epilepsy Surgery. Epilepsia. 2016 Feb;57(2):194-200. doi: 10.1111/epi.13292. Epub 2016 Jan 8.
citation: Berg AT. Epilepsy: Efficacy of epilepsy surgery: what are the questions today? Nat Rev Neurol. 2011 Jun 8;7(6):311-2. doi: 10.1038/nrneurol.2011.73.
citation: Tellez-Zenteno JF, Dhar R, Wiebe S. Long-term seizure outcomes following epilepsy surgery: a systematic review and meta-analysis. Brain. 2005 May;128(Pt 5):1188-98. doi: 10.1093/brain/awh449. Epub 2005 Mar 9.
citation: Malmgren K, Sullivan M, Ekstedt G, Kullberg G, Kumlien E. Health-related quality of life after epilepsy surgery: a Swedish multicenter study. Epilepsia. 1997 Jul;38(7):830-8. doi: 10.1111/j.1528-1157.1997.tb01471.x.
citation: Engel J Jr. Why is there still doubt to cut it out? Epilepsy Curr. 2013 Sep;13(5):198-204. doi: 10.5698/1535-7597-13.5.198.
citation: A global survey on epilepsy surgery, 1980-1990: a report by the Commission on Neurosurgery of Epilepsy, the International League Against Epilepsy. Epilepsia. 1997 Feb;38(2):249-55. doi: 10.1111/j.1528-1157.1997.tb01105.x. No abstract available.
citation: Rafael H. Surgical and neurological complications in a series of 708 epilepsy surgical procedures. Neurosurgery. 1998 Mar;42(3):675-6. doi: 10.1097/00006123-199803000-00048. No abstract available.
citation: Cascino GD, Sharbrough FW, Trenerry MR, Marsh WR, Kelly PJ, So E. Extratemporal cortical resections and lesionectomies for partial epilepsy: complications of surgical treatment. Epilepsia. 1994 Sep-Oct;35(5):1085-90. doi: 10.1111/j.1528-1157.1994.tb02559.x.
citation: Vakharia VN, Duncan JS, Witt JA, Elger CE, Staba R, Engel J Jr. Getting the best outcomes from epilepsy surgery. Ann Neurol. 2018 Apr;83(4):676-690. doi: 10.1002/ana.25205. Epub 2018 Apr 10.