Journals / Epilepsi / 2020 / Cilt: 26 - Sayı: 2

Evaluating the Correlation Between Preoperative Examination Results, Prognosis, and Pathology Results in Temporal Lobe Epilepsy Patients

Temporal Lop Epilepsili Olgularda Ameliyat Öncesi İnceleme Sonuçlarının Prognoz ve Patoloji Sonuçları İle Korelasyonunun Değerlendirilmesi

Journal
Epilepsi
Pages
66–71
Publication Date
2022-10-17
DOI
—
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⚡ TL;DR(Too Long; Didn't Read)

Thepostoperative seizure-free rate was 82.8% in the sixth month and in the first year, whereas this rate was 74.3% in the second year.Conclusion: In conclusion, as in the present study, each preoperative examination has an impact on localizations and prognosis; it is also important for a goodsurgical prognosis that results are consistent and focused on a single location.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: This prospective study aims to compare the diagnostic value of different preoperative examinations in patients who underwent TLE surgery for treatment-resistant temporal lobe epilepsy, following histopathological evaluations, and to evaluate the seizure-freedom rates observed during the postoperativefollow-up.Methods: In this study, 35 patients who were followed-up in our clinic diagnosed with drug-resistant TLE were evaluated prospectively.
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Key Findings & Data:When we correlated the imaging methods with ictal EEG, PET scan had a considerably highlateralization value in determining the epileptic focus and had 100% sensitivity.
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Conclusion & Impact:Thepostoperative seizure-free rate was 82.8% in the sixth month and in the first year, whereas this rate was 74.3% in the second year.Conclusion: In conclusion, as in the present study, each preoperative examination has an impact on localizations and prognosis; it is also important for a goodsurgical prognosis that results are consistent and focused on a single location.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: This prospective study aims to compare the diagnostic value of different preoperative examinations in patients who underwent TLE surgery for treatment-resistant temporal lobe epilepsy, following histopathological evaluations, and to evaluate the seizure-freedom rates observed during the postoperativefollow-up.Methods: In this study, 35 patients who were followed-up in our clinic diagnosed with drug-resistant TLE were evaluated prospectively. The epileptic focus wasdetermined for all patients. The different preoperative, noninvasive examinations were compared to each other, and with postoperative pathology results. Patientswere followed up for two years after surgery.Results: Concerning determining the epileptic focus, our findings showed that PET and cranial MRI had similar effectiveness compared to ictal EEG and semiology, which represent the gold standard in preoperative examinations. When we correlated the imaging methods with ictal EEG, PET scan had a considerably highlateralization value in determining the epileptic focus and had 100% sensitivity. In terms of detecting the epileptic focus, MRI had a sensitivity of 97%, routine EEGhad a sensitivity of 82.9%, and MRS had a sensitivity of 79.4%. During the postoperative period, hippocampal sclerosis was observed in 71.4% of the patients. Thepostoperative seizure-free rate was 82.8% in the sixth month and in the first year, whereas this rate was 74.3% in the second year.Conclusion: In conclusion, as in the present study, each preoperative examination has an impact on localizations and prognosis; it is also important for a goodsurgical prognosis that results are consistent and focused on a single location.

Özet

Amaç: Bu çalışmamızda, ileriye yönelik olarak ilaç tedavisine dirençli temporal lob epilepsisi (TLE) nedeniyle opere edilen olguların ameliyat öncesi incelemelerinin korelasyonu ve ameliyat sonrası izlemlerinde nöbetsizlik oranlarını değerlendirmeyi amaçladık. Gereç ve Yöntem: Kliniğimizde ilaca dirençli TLE tanısıyla izlenen ve cerrahi adayı olarak belirlenen 35 hasta ileriye yönelik olarak değerlendirilmiştir. Çalışmaya dahil edilen hastaların epileptik odağı belirlenmiş, preoperatif noninvaziv incelemeleri tamamlanıp incelemeleri birbirleriyle ve ayrıca ameliyat sonrası dönemdeki patoloji sonuçları ile karşılaştırılmıştır. Cerrahi sonrası iki yıl boyunca hastalar izlenmiştir. Bulgular: Çalışmamızın sonucunda, epileptik odağı tespit etmede ameliyat öncesi incelemelerden altın standart olan iktal EEG ve semiyolojiye benzer şekilde, PET ve kraniyal MRG incelemelerinin de yüksek oranda katkı sağladığını gözlemledik. Görüntüleme yöntemlerini iktal EEG ile korele ettiğimizde epileptik odağı tespit etmede PET incelemelerinin lateralizasyon değeri oldukça yüksek olup duyarlılığı %100 olarak tespit edilmiştir. Kraniyal MRG’nin ise epileptik odağı tespit etmede duyarlılığı %97 iken, rutin EEG’nin %82.9 ve MRS’nin ise duyarlılığı %79.4 olarak tespit edilmiştir. Cerrahi sonrası olgularımızın %71.4’ünde hipokampal skleroz tespit edilmiştir. Olgularımızın cerrahi sonrası nöbetsizlik oranları altıncı ay ve birinci yıl %82.8 olup (Engel-I), ikinci yılda bu oran %74.3 olarak belirlenmiştir. Sonuç: Sonuç olarak çalışmamızda olduğu gibi ameliyat öncesi incelemelerin her birisinin lokalizasyon ve prognoz üzerine etkisi olduğu bilinmekle beraber, sonuçların birbirleriyle uyumlu ve tek odağı lokalize etmesi iyi cerrahi prognoz açısından oldukça önemlidir.

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Cite This Article

GÖLEN, M. K., AKDEMİR, Ö., ONER, A. Y., KURT, G., YILDIRIM, İ., BİLİR, E. (2022). Evaluating the Correlation Between Preoperative Examination Results, Prognosis, and Pathology Results in Temporal Lobe Epilepsy Patients. Epilepsi, Cilt: 26 - Sayı: 2, 66–71. https://ajindex.com/articles/501647

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