Journals / Turkish Neurosurgery / 2011 / Cilt: 21 - Sayı: 3

Malign astrositomlardaki preoperatif Mrı özelliklerinin ölüm olasılığı analizi

Analysis of the mortality probability of preoperative MRI features in malignant astrocytomas

Pages
272–279
DOI
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⚡ TL;DR(Too Long; Didn't Read)

CONCLUSION: Necrosis in preoperative MRI of malignant astrocytomas seems to be an important clinical marker of the prognosis.

📌 3 Key Takeaways

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Objective & Hypothesis:AIM: The aim of the present study is to analyze the effects of the MRI features on the recurrence time and prognosis, and to emphasize the analyses of mortality risks in malignant astrocytomas.
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Key Findings & Data:MATERIAL and METHODS: The effects of preoperative MRI features on prognosis were studied for follow-up period of 45 months, from November 1999 to August 2003, on a total of 79 patients' 41 cases of total resection and 38 cases of subtotal resection diagnosed to have malignant astrocytoma subsequent to craniotomy.
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Conclusion & Impact:CONCLUSION: Necrosis in preoperative MRI of malignant astrocytomas seems to be an important clinical marker of the prognosis.
🔬Design:Modeling & Simulation
📍Scope:2003 Verileri
⚙️Variables:Domain Parameters

Abstract

AIM: The aim of the present study is to analyze the effects of the MRI features on the recurrence time and prognosis, and to emphasize the analyses of mortality risks in malignant astrocytomas. MATERIAL and METHODS: The effects of preoperative MRI features on prognosis were studied for follow-up period of 45 months, from November 1999 to August 2003, on a total of 79 patients' 41 cases of total resection and 38 cases of subtotal resection diagnosed to have malignant astrocytoma subsequent to craniotomy. RESULTS: The cases of gross total resection had 2.2 times as high survival rate as those in the subtotal resection group (p<0.01). The comparison of the cases in the groups in relation to their ages revealed that mortality rate rose 4.35 times (p<0.01) in the age group of 60 years and above, and 2.1 times in the age group of 45-59 years. When cases without necrosis were compared with the group containing necrosis of grade 1, 2, 3, it was observed that the probability of mortality increased 3.84 (p<0.01), 4.15 times (p<0.01) in the case of necrosis of grade 2 and 3, respectively by means of Cox regression model. CONCLUSION: Necrosis in preoperative MRI of malignant astrocytomas seems to be an important clinical marker of the prognosis.

Özet

AMAÇ: Bu çalışmanın amacı, preoperatif MRI özelliklerinin nüks zamanına ve prognoza olan etkisini analiz etmek ve malign astositomalarda ölüm olasılığı riskine vurgu yapmaktır. YÖNTEM ve GEREÇ: Bu çalışma kraniotomi sonrası malign astrositoma tanısı alan 79 hastanın Kasım 1999- Ağustos 2003 tarihleri arasında 45 aylık takip periyodunda gross total rezeksiyonlu 41 ve subtotal rezeksiyonlu 38 hastanın preoperatif MRI özelliklerinin prognoza etkisi analiz edildi. BULGULAR: Cox regresyon analizinde; gross total rezeksiyon yapılan olguların subtotal rezeksiyon grubuna göre 2,2 kat hayatta kalma olasılığına sahip olduğu görüldü (p<0,01). Yaş gruplarında ise, 60 ve üzeri yaş grubundaki olguların ölüm olasılığının 4.4 kat arttığı (P<0.01), ölüm olasılığındaki bu artışın 45-59 yaş grubunda 2,1 kat olduğu tespit edildi. Nekroz içermeyen olgular 1, 2 ve 3. derece nekroz içeren grupla karşılaştırıldığında; 2. derece nekroz içeren grupta ölüm olasılığının 3,84 kat arttığı (P<0,01), 3. derece nekroz içeren grupta ise ölüm olasılığının 4,15 kat (p<0,01) arttığı görüldü. SONUÇ: Malign astrositomalarda Preoperatif MRI’daki nekroz hastalığın prognozu açısından önemli bir klinik belirleyici olarak görünmektedir.

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Cite This Article

EKİCİ, M. A., BULUT, T., TUCER, B., KURTSOY, A. (2011). Malign astrositomlardaki preoperatif Mrı özelliklerinin ölüm olasılığı analizi. Turkish Neurosurgery, Cilt: 21 - Sayı: 3, 272–279. https://ajindex.com/articles/405067

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