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- 저자 : Koukourakis, Michael (검색결과 3 건)
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Potential Role of Electrochemotherapy as Anticancer Treatment for Cutaneous and Subcutaneous Lesions
Zygogianni, Anna,Kyrgias, George,Scarlatos, John,Koukourakis, Michael,Souliotis, Kyriakos,Kouvaris, John,Kelekis, Nikolaos,Kouloulias, Vassilis Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.8
Background: The aim of this study was to investigate whether electrochemotherapy is a clinically and cost-effective treatment option against skin tumors. Materials and Methods: We performed an analysis of the current literature based on database searches in PubMed/MEDLINE and we included articles till July 2012. Terms used for the search were 'electrochemotherapy', 'skin cancer', 'recurrence', and 'cutaneous and subcutaneous tumors'. Only papers published in English were included. In addition, we performed an analysis of the cost effectiveness of the method. Results: The combination of physics and chemistry is the foundation for electrochemotherapy and its efficacy, independent of the tumor histology. Clinical data showed that ECT is well tolerated and can be used in difficult cases without other available treatment options. The analysis also showed that the treatment is feasible and cost-effective. Conclusions: Electrochemotherapy is a clinically efficient safe and cost-effective treatment and clinicians should not hesitate to use it as alternative therapeutic modality or as palliative treatment.
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Christos Nanos,Vasilios Souftas,Athanasios Zissimopoulos,Michael I. Koukourakis 대한방사선종양학회 2022 Radiation Oncology Journal Vol.40 No.2
Purpose: Conventionally fractionated radiotherapy (CRT) is widely applied for the treatment of high-risk prostate cancer. Pelvic node irradiation improves control of the disease. Although the therapeutic guidelines support the use of hypofractionated and accelerated radiotherapy (HypoAR), this is addressed to prostate and seminal vesicles. At the same time, the safety and efficacy of HypoAR for pelvic node irradiation remain obscure. Materials and Methods: In a phase II study, we evaluated the feasibility of pelvic HypoAR in 22 high-risk prostate cancer patients. The RT scheme delivers 14 consecutive fractions of 3.67 Gy (total 51.38 Gy) to the prostate, 3.5 Gy (total 49 Gy) to the seminal vesicles, and 2.7 Gy (total 37.8 Gy) to the lymph nodes, using image-guided volumetric modulated arc therapy. A comparative radiobiological analysis of dose-volume histogram is performed (HypoAR vs. hypothetical equivalent CRT regimens, without and with time correction). Results: Our clinical experience shows impressively low early and short-term late toxicities, without any grade III events, within a median follow-up of 30 months. Only one biochemical relapse was recorded 30 months after irradiation. In radiobiological analysis, considering an α/β-value of 4 Gy and a λ-value of 0.2 Gy/day for late effects, all comparisons predicted significantly lower toxicity for the HypoAR regimen (p < 0.05). For early toxicities (α/β = 10 Gy), a λ-value lower than 0.4 Gy/day favors the HypoAR regimen, which is along with the clinical results. Conclusion: Radiobiological analysis favors HypoAR as a safe and effective regimen for high-risk prostate cancer patients, which is confirmed in the current phase II clinical study.
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O. Bourogianni,K. Pagonidis,M. Stathaki,A. Tsaroucha,E. Papadaki,S. Koukouraki 대한핵의학회 2019 핵의학 분자영상 Vol.53 No.5
Post-therapeutic whole-body scan (WBS) with I-131 has been widely used for the follow-up of patients with well-differentiated thyroid cancer (DTC). Although the sensitivity of WBS with I-131 in detection of functioning thyroid tissues is high, its specificity is low. So, a further evaluation is required in cases of unexpected findings. The purpose of the study was to demonstrate that awareness of the potential pitfalls of WBS in DTC, knowledge of physiology and characteristics of radioiodine uptake, and correlation with other imaging modalities are needed to avoid incorrect management of patients with DTC. This is a case report of a 49-year-old woman with an unexpected area of increased I-131 uptake in the posterior lower chest, which was finally diagnosed as a pleuropericardial cyst. Due to the false-positive uptake of I-131 in the chest, an accurate interpretation of the scintigraphic findings should be made.
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