The Wada memory test and prediction of outcome after anterior temporal lobectomy

Yu, Hsiang‐Yu; Shih, Yang-Hsin; Su, Tung‐Ping; Shan, Ian-Kai; Yiu, Chun-Hin; Lin, Yung Yang; Kwan, Shang‐Yeong; Chen, Chien; Yen, Der‐Jen

doi:10.1016/j.jocn.2009.11.027

Cited by 5 publications

(4 citation statements)

References 38 publications

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“…Three studies reported verbal intelligence quotient (IQ) changes as outcome parameters predicted by language as well as language and memory Wada test LQs . Because no subtest results were available, the overall verbal IQ score was included in the analyses.…”

Section: Resultsmentioning

confidence: 99%

Diagnostic accuracy of functional magnetic resonance imaging, Wada test, magnetoencephalography, and functional transcranial Doppler sonography for memory and language outcome after epilepsy surgery: A systematic review

et al. 2018

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Objective: The European Union-funded E-PILEPSY project was launched to develop guidelines and recommendations for epilepsy surgery. In this systematic review, we aimed to assess the diagnostic accuracy of functional magnetic resonance imaging (fMRI), Wada test, magnetoencephalography (MEG), and functional transcranial Doppler sonography (fTCD) for memory and language decline after surgery. Methods: The literature search was conducted using PubMed, Embase, and CEN-TRAL. The diagnostic accuracy was expressed in terms of sensitivity and specificity for postoperative language or memory decline, as determined by pre-and postoperative neuropsychological assessments. If two or more estimates of sensitivity or specificity were extracted from a study, two meta-analyses were conducted, using the maximum ("best case") and the minimum ("worst case") of the extracted estimates, respectively. Results: Twenty-eight papers were eligible for data extraction and further analysis. All tests for heterogeneity were highly significant, indicating large betweenstudy variability (P < 0.001). For memory outcomes, meta-analyses were conducted for Wada tests (n = 17) using both memory and language laterality quotients. In the best case, meta-analyses yielded a sensitivity estimate of 0.79 (95% confidence interval [CI] = 0.67-0.92) and a specificity estimate of 0.65 (95% CI = 0.47-0.83). For the worst case, meta-analyses yielded a sensitivity estimate of 0.65 (95% CI = 0.48-0.82) and a specificity estimate of 0.46 (95% CI = 0.28-0.65). The overall quality of evidence, which was assessed using Grading of Recommendations Assessment, Development, and Evaluation methodology, was rated as very low. Meta-analyses concerning diagnostic accuracy of fMRI, fTCD, and MEG were not feasible due to small numbers of studies (fMRI, n = 4; fTCD, --n = 1; MEG, n = 0). This also applied to studies concerning language outcomes (Wada test, n = 6; fMRI, n = 2; fTCD, n = 1; MEG, n = 0). Significance: Meta-analyses could only be conducted in a few subgroups for the Wada test with low-quality evidence. Thus, more evidence from high-quality studies and improved data reporting are required. Moreover, the large between-study heterogeneity underlines the necessity for more homogeneous and thus comparable studies in future research. K E Y W O R D Sdiagnostic accuracy, epilepsy surgery, language, memory, systematic review SUPPORTING INFORMATIONAdditional supporting information may be found online in the Supporting Information section at the end of the article.How to cite this article: Schmid E, Thomschewski A, Taylor A, et al. Diagnostic accuracy of functional magnetic resonance imaging, Wada test, magnetoencephalography, and functional transcranial Doppler sonography for memory and language outcome after epilepsy surgery: A systematic review. Epilepsia.

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Section: Resultsmentioning

confidence: 99%

Diagnostic accuracy of functional magnetic resonance imaging, Wada test, magnetoencephalography, and functional transcranial Doppler sonography for memory and language outcome after epilepsy surgery: A systematic review

et al. 2018

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“…Brain mapping can be used to assess numerous functions for pre-operative patient selection and procedure planning. The IAT and more recently fMRI including fcMRI have been used to assess memory dominance and risk for post-operative memory loss in patients undergoing temporal lobectomy and amygdalohippocampectomy [116, 117]. …”

Section: Disease-specific Considerationsmentioning

confidence: 99%

Special Surgical Considerations for Functional Brain Mapping

Kekhia

Rigolo

Norton

et al. 2011

Neurosurgery Clinics of North America

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“…This prediction is based on the concepts of "functional reserve" and "functional adaptation" (Chelune, 1995;Chelune, 2001;Loring, 2001). Although several studies report that the results of the asymmetry of memory on the IAP are associated with the postoperative prognosis of crisis management, the results are not consistent and this could be explained by additional clinical factors, differences in the interpretation of the asymmetry in the procedure and dissimilar postoperative follow-up times (Yu, 2010;Trenerry, 2006).…”

Section: Intracarotid Amobarbital Procedures and Cerebral Representatimentioning

confidence: 99%

Presurgical Assessment of Patients with Refractory Temporal Lobe Epilepsy

Jaramillo¹,

Massaro²,

Ascencio³

et al. 2011

Novel Treatment of Epilepsy

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The Wada memory test and prediction of outcome after anterior temporal lobectomy

Cited by 5 publications

References 38 publications

Diagnostic accuracy of functional magnetic resonance imaging, Wada test, magnetoencephalography, and functional transcranial Doppler sonography for memory and language outcome after epilepsy surgery: A systematic review

Diagnostic accuracy of functional magnetic resonance imaging, Wada test, magnetoencephalography, and functional transcranial Doppler sonography for memory and language outcome after epilepsy surgery: A systematic review

Special Surgical Considerations for Functional Brain Mapping

Presurgical Assessment of Patients with Refractory Temporal Lobe Epilepsy

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