Three Dimensional Normal Tissue Dose Reconstruction of Historical Hodgkin's Lymphoma Patients for Correlation with Late Toxicity

Author(s):  
A. Ng ◽  
D.C. Hodgson ◽  
J.L. Moseley ◽  
M.B. Sharpe ◽  
T.N. Nguyen ◽  
...  
Author(s):  
Niklas Benedikt Pepper ◽  
Michael Oertel ◽  
Christopher Kittel ◽  
Kai Jannes Kröger ◽  
Khaled Elsayad ◽  
...  

Abstract Purpose Mediastinal radiotherapy (RT), especially when combined with bleomycin, may result in substantial pulmonary morbidity and mortality. The use of modern RT techniques like intensity-modulated radiotherapy (IMRT) is gaining interest to spare organs at risk. Methods We evaluated 27 patients who underwent RT for Hodgkin’s lymphoma between 2009 and 2013 at our institution. For each patient, three different treatment plans for a 30-Gy involved-field RT (IFRT) were created (anterior-posterior-posterior-anterior setup [APPA], 5‑field IMRT, and 7‑field IMRT) and analyzed concerning their inherent “normal tissue complication probability” (NTCP) for pneumonitis and secondary pulmonary malignancy. Results The comparison of different radiation techniques showed a significant difference in favor of standard APPA (p < 0.01). The risk of lung toxicity was significantly higher in plans using 7‑field IMRT than in plans using 5‑field IMRT. The absolute juxtaposition showed an increase in risk for radiation pneumonitis of 1% for plans using 5‑field IMRT over APPA according to QUANTEC (Quantitative Analyses of Normal Tissue Effects in the Clinic) parameters (Burman: 0.15%) and 2.6% when using 7‑field IMRT over APPA (Burman: 0.7%) as well as 1.6% when using 7‑field IMRT over 5‑field IMRT (Burman: 0.6%). Further analysis showed an increase in risk for secondary pulmonary malignancies to be statistically significant (p < 0.01); mean induction probability for pulmonary malignoma was 0.1% higher in plans using 5‑field IMRT than APPA and 0.19% higher in plans using 7‑field IMRT than APPA as well as 0.09% higher in plans using 7‑field IMRT than 5‑field IMRT. During a median follow-up period of 65 months (95% confidence interval: 53.8–76.2 months), only one patient developed radiation-induced pneumonitis. No secondary pulmonary malignancies have been detected to date. Conclusion Radiation-induced lung toxicity is rare after treatment for Hodgkin lymphoma but may be influenced significantly by the RT technique used. In this study, APPA RT plans demonstrated a decrease in potential radiation pneumonitis and pulmonary malignancies. Biological planning using NTCP may have the potential to define personalized RT strategies


2005 ◽  
Vol 23 (26) ◽  
pp. 6400-6408 ◽  
Author(s):  
Joseph M. Connors

Presently Hodgkin's lymphoma can be cured in at least 80% of patients. The major challenge to the clinician in 2005 is how to cure the disease while inducing the least irreversible toxicity. This review focuses on clinical trials and institutional experiences to identify the best choice of treatment, individualized to the stage of the lymphoma permitting minimization of late toxicity such as infertility, premature menopause, cardiac disease, and most importantly, risk of second neoplasms. More than 90% of patients with limited Hodgkin's lymphoma can be cured with either short-course chemotherapy alone or even briefer chemotherapy followed by involved-field radiation. Accumulating evidence suggests that chemotherapy alone is suitable for the large majority of patients with limited disease. For the 80% of patients with advanced disease but without a large number of adverse prognostic factors, standard multi-agent chemotherapy with the well-established ABVD regimen (doxorubicin, bleomycin, vinblastine, and dacarbazine) provides the best balance of effectiveness and minimization of toxicity. More intensified regimens currently under investigation are appropriate for the 20% with numerous adverse prognostic factors. In 2005 it is insufficient to focus solely on cure of Hodgkin's lymphoma. The treatment program must maximize chance of cure and minimize late toxicity. Fortunately, brief chemotherapy alone or with radiation for patients with limited disease and standard ABVD chemotherapy for patients with advanced disease offer the appropriate balance of these two requirements. Patients with advanced disease plus multiple indicators of a poor prognosis and patients with disease that persists despite optimized primary treatment require specially intensified treatment.


2014 ◽  
Vol 6 (1) ◽  
pp. e2014035 ◽  
Author(s):  
Umberto Ricardi ◽  
Andrea Riccardo Filippi ◽  
Cristina Piva ◽  
Pierfrancesco Franco

Radiation therapy has a key role in the combined modality treatment of early-stage Hodgkin’s Lymphoma (HL). Nevertheless, late toxicity still remains an issue. A modern approach in HL radiotherapy includes lower doses and smaller fields, together with the implementation of sophisticated and dedicated delivery techniques. Aim of the present review is to discuss the current role of radiotherapy and its potential future developments, with a focus on major clinical trials, technological advances and their repercussion in the clinical management of HL patients.


Hematology ◽  
2001 ◽  
Vol 2001 (1) ◽  
pp. 178-193 ◽  
Author(s):  
Joseph M. Connors ◽  
Evert M. Noordijk ◽  
Sandra J. Horning

Abstract This paper examines the evidence available to guide treatment decisions in three areas of Hodgkin's lymphoma management. In Section I Dr. Evert Noordijk describes evolving strategies for patients with early stage disease outlining the eras during which the focus has changed from initially accomplishing cure through refining and intensifying the treatment to one of maximizing cure rates and finally into a patient-oriented era in which the twin goals of maintaining high rates of cure and minimizing late toxicity are being achieved. In Section II Dr. Sandra Horning reviews the way in which the cooperative groups of North America and Europe have built upon initial observations from single centers to assemble the trials that have defined the treatment for advanced stage Hodgkin's lymphoma. Over a period of almost three decades, these well-constructed trials have defined a current standard of treatment, ABVD chemotherapy and are now investigating innovative approaches to move beyond this standard. She also indicates the need to appreciate diagnostic factors and the implications of prognostic factor models for the design and interpretation of clinical trials. In Section III Dr. Joseph Connors summarizes the evidence available to inform our choice of treatment for the uncommon but important entity of lymphocyte predominance Hodgkin's lymphoma. Once again, the guidance that can be derived from carefully conducted clinical investigation is used to address the issues surrounding choice of treatment, reasonable monitoring in long term follow-up and the clear-cut need to base diagnosis on objective immunohistochemical evidence.


2010 ◽  
Vol 5 (1) ◽  
pp. 33 ◽  
Author(s):  
Laura Cella ◽  
Raffaele Liuzzi ◽  
Mario Magliulo ◽  
Manuel Conson ◽  
Luigi Camera ◽  
...  

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