Evidence map›Paper›PMID 31000525›Full record

ArticleAJNR. American journal of neuroradiology2019

Focal Cortical Dysplasia and Refractory Epilepsy: Role of Multimodality Imaging and Outcome of Surgery.

S Jayalakshmi, S K Nanda, S Vooturi, R Vadapalli, P Sudhakar, S Madigubba, M Panigrahi

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 2 pooled it
4.3field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 2 syntheses or guidelines pooled it, 72 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
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  6. Article
  7. Article
  8. MEG in MRI-Negative Patients with Focal Epilepsy.Journal of clinical medicine · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Neuropsychiatric disease and treatment · 2024
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Screening and identification of novel candidate biomarkers of focal cortical dysplasia type II via bioinformatics analysis.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 6 institutions in 5 countries.

S JayalakshmiFrom the Departments of Neurology (S.J., S.K.N., S.V.) sita_js@hotmail.com sita.js@gmail.com.ORCID 0000-0001-8630-0896
S K NandaFrom the Departments of Neurology (S.J., S.K.N., S.V.).ORCID 0000-0002-1029-4554
S VooturiFrom the Departments of Neurology (S.J., S.K.N., S.V.).ORCID 0000-0002-7259-6056
R VadapalliRadiology (R.V.).ORCID 0000-0001-6754-7332
P SudhakarNuclear Medicine (P.S.).ORCID 0000-0002-3626-3641
S MadigubbaPathology (S.M.).ORCID 0000-0003-4674-8893
M PanigrahiNeurosurgery (M.P.), Krishna Institute of Medical Sciences, Secunderabad, India.ORCID 0000-0002-3639-8386
Norwegian Womens Public Health Association · NOCochlear (Australia) · AUKrishna Institute of Medical Sciences · INMaine Farmland Trust · USSheldon Jackson College · USUniversity Radiology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeFocal cortical dysplasia (FCD) is one of the most common causes of drug resistant epilepsy. Our aim was to evaluate the role of presurgical noninvasive multimodality imaging techniques in selecting patients with refractory epilepsy and focal cortical dysplasia for epilepsy surgery and the influence of the imaging modalities on long-term seizure freedom. MATERIALS AND

methodsWe performed a retrospective analysis of data of 188 consecutive patients with FCD and refractory epilepsy with at least 2 years of postsurgery follow-up. Predictors of seizure freedom and the sensitivity of neuroimaging modalities were analyzed.

resultsMR imaging showed clear-cut FCD in 136 (72.3%) patients. Interictal FDG-PET showed focal hypo-/hypermetabolism in 144 (76.6%); in 110 patients in whom ictal SPECT was performed, focal hyperperfusion was noted in 77 (70.3%). Focal resection was the most common surgery performed in 112 (59.6%). Histopathology revealed FCD type I in 102 (54.3%) patients. At last follow-up, 124 (66.0%) were seizure-free. Complete resection of FCD and type II FCD were predictors of seizure freedom. Localization of FCD on either MR imaging or PET or ictal SPECT had the highest sensitivity for seizure freedom at 97.5%. Among individual modalities, FDG-PET had the highest sensitivity (78.2%), followed by MR imaging (75.8%) and ictal SPECT (71.8%). The sensitivity of MR imaging to localize type I FCD (60.8%) was significantly lower than that for type II FCD (84.8%,

conclusionsDuring presurgical multimodality evaluation, localization of the extent of the epileptogenic zone in at least 2 imaging modalities helps achieve seizure freedom in about two-thirds of patients with refractory epilepsy due to FCD. FDG-PET is the most sensitive imaging modality for seizure freedom, especially in patients with type I FCD.

Indexed as

AdolescentAdultChildDrug Resistant EpilepsyEpilepsyFemaleHumansMaleMalformations of Cortical Development, Group IMiddle AgedMultimodal ImagingNeuroimagingNeurosurgical ProceduresPatient SelectionRetrospective StudiesTreatment Outcome

Identifiers

PMID31000525
PMCPMC7053892
OpenAlexW2937227898

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.