Document Detail

Dosimetric predictors of asymptomatic heart valvular dysfunction following mediastinal irradiation for Hodgkin's lymphoma.
MedLine Citation:
PMID:  21925755     Owner:  NLM     Status:  Publisher    
PURPOSE: To identify dose-heart-volume constraints that correlate with the risk of developing asymptomatic valvular defects (VD) in Hodgkin's lymphoma (HL) patients treated with three-dimensional radiotherapy (RT). PATIENTS AND METHODS: Fifty-six patients undergoing cytotoxic chemotherapy (CHT) and involved-field radiation treatment for HL were retrospectively analyzed. Electro-echocardiography was performed before CHT, after CHT, and after RT. For the entire heart, for right and left ventricle (RV, LV), right and left atrium (RA, LA) percentage of volume exceeding 5-30Gy in increment of 5Gy (V(x)), and dosimetric parameters were calculated using 1.6Gy fraction as reference. To evaluate clinical and dosimetric factors possibly associated with VD, univariate and multivariate logistic regression analyses were performed. RESULTS: At a median follow up of 70.5months, 32.1% of patients developed VD (regurgitation and/or stenosis): 25.0% developed mitral, 5.4% developed aortic, and 14.3% tricuspid VD. In particular the percentage of LA exceeding 25Gy (LA-V(25)) and the percentage of LV exceeding 30Gy (LV-V(30)) correlated with mitral and aortic VD with an odds ratio (OR) of 5.7 (LA-V(25)>63.0% vs. LA-V(25)⩽63.0%) and OR of 4.4 (LV-V(30)>25% vs. LV-V(30)⩽25%), respectively. RV-V(30) correlated with tricuspid VD (OR=7.2, RV-V(30)>65% vs. RV-V(30)⩽65%). CONCLUSION: LA-V(25), LV- and RV-V(30) prove to be predictors of asymptomatic alteration of valve functionality.
Laura Cella; Raffaele Liuzzi; Manuel Conson; Gabriella Torre; Michele Caterino; Nicola De Rosa; Marco Picardi; Luigi Camera; Raffaele Solla; Antonio Farella; Marco Salvatore; Roberto Pacelli
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-16
Journal Detail:
Title:  Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology     Volume:  -     ISSN:  1879-0887     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8407192     Medline TA:  Radiother Oncol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.
Institute of Biostructure and Bioimaging, National Research Council of Italy (CNR), Naples, Italy; Department of Diagnostic Imaging and Radiation Oncology, Federico II University School of Medicine, Naples, Italy.
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