1
|
Wang H, Yang J, Lee A, Phan J, Lim TY, Fuller CD, Han EY, Rhee DJ, Salzillo T, Zhao Y, Chopra N, Pham M, Castillo P, Sobremonte A, Moreno AC, Reddy JP, Rosenthal D, Garden AS, Wang X. MR-guided stereotactic radiation therapy for head and neck cancers. Clin Transl Radiat Oncol 2024; 46:100760. [PMID: 38510980 PMCID: PMC10950743 DOI: 10.1016/j.ctro.2024.100760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 02/01/2024] [Accepted: 03/06/2024] [Indexed: 03/22/2024] Open
Abstract
Purpose MR-guided radiotherapy (MRgRT) has the advantage of utilizing high soft tissue contrast imaging to track daily changes in target and critical organs throughout the entire radiation treatment course. Head and neck (HN) stereotactic body radiation therapy (SBRT) has been increasingly used to treat localized lesions within a shorter timeframe. The purpose of this study is to examine the dosimetric difference between the step-and-shot intensity modulated radiation therapy (IMRT) plans on Elekta Unity and our clinical volumetric modulated arc therapy (VMAT) plans on Varian TrueBeam for HN SBRT. Method Fourteen patients treated on TrueBeam sTx with VMAT treatment plans were re-planned in the Monaco treatment planning system for Elekta Unity MR-Linac (MRL). The plan qualities, including target coverage, conformity, homogeneity, nearby critical organ doses, gradient index and low dose bath volume, were compared between VMAT and Monaco IMRT plans. Additionally, we evaluated the Unity adaptive plans of adapt-to-position (ATP) and adapt-to-shape (ATS) workflows using simulated setup errors for five patients and assessed the outcomes of our treated patients. Results Monaco IMRT plans achieved comparable results to VMAT plans in terms of target coverage, uniformity and homogeneity, with slightly higher target maximum and mean doses. The critical organ doses in Monaco IMRT plans all met clinical goals; however, the mean doses and low dose bath volumes were higher than in VMAT plans. The adaptive plans demonstrated that the ATP workflow may result in degraded target coverage and OAR doses for HN SBRT, while the ATS workflow can maintain the plan quality. Conclusion The use of Monaco treatment planning and online adaptation can achieve dosimetric results comparable to VMAT plans, with the additional benefits of real-time tracking of target volume and nearby critical structures. This offers the potential to treat aggressive and variable tumors in HN SBRT and improve local control and treatment toxicity.
Collapse
Affiliation(s)
- He Wang
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Jinzhong Yang
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Anna Lee
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Jack Phan
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Tze Yee Lim
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Clifton D. Fuller
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Eun Young Han
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Dong Joo Rhee
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Travis Salzillo
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Yao Zhao
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Nitish Chopra
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Mary Pham
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Pam Castillo
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Angela Sobremonte
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| | - Amy C. Moreno
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Jay P. Reddy
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - David Rosenthal
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Adam S. Garden
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Xin Wang
- Department of Radiation Physics, MD Anderson Cancer Center, Houston, TX, USA
| |
Collapse
|
2
|
Muniz IDAF, Araujo M, Bouassaly J, Farshadi F, Atique M, Esfahani K, Bonan PRF, Hier M, Mascarella M, Mlynarek A, Alaoui-Jamali M, da Silva SD. Therapeutic Advances and Challenges for the Management of HPV-Associated Oropharyngeal Cancer. Int J Mol Sci 2024; 25:4009. [PMID: 38612819 PMCID: PMC11012756 DOI: 10.3390/ijms25074009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
The use of conventional chemotherapy in conjunction with targeted and immunotherapy drugs has emerged as an option to limit the severity of side effects in patients diagnosed with head and neck cancer (HNC), particularly oropharyngeal cancer (OPC). OPC prevalence has increased exponentially in the past 30 years due to the prevalence of human papillomavirus (HPV) infection. This study reports a comprehensive review of clinical trials registered in public databases and reported in the literature (PubMed/Medline, Scopus, and ISI web of science databases). Of the 55 clinical trials identified, the majority (83.3%) were conducted after 2015, of which 77.7% were performed in the United States alone. Eight drugs have been approved by the FDA for HNC, including both generic and commercial forms: bleomycin sulfate, cetuximab (Erbitux), docetaxel (Taxotere), hydroxyurea (Hydrea), pembrolizumab (Keytruda), loqtorzi (Toripalimab-tpzi), methotrexate sodium (Trexall), and nivolumab (Opdivo). The most common drugs to treat HPV-associated OPC under these clinical trials and implemented as well for HPV-negative HNC include cisplatin, nivolumab, cetuximab, paclitaxel, pembrolizumab, 5-fluorouracil, and docetaxel. Few studies have highlighted the necessity for new drugs specifically tailored to patients with HPV-associated OPC, where molecular mechanisms and clinical prognosis are distinct from HPV-negative tumors. In this context, we identified most mutated genes found in HPV-associated OPC that can represent potential targets for drug development. These include TP53, PIK3CA, PTEN, NOTCH1, RB1, FAT1, FBXW7, HRAS, KRAS, and CDKN2A.
Collapse
Affiliation(s)
- Isis de Araújo Ferreira Muniz
- Department of Otolaryngology and Head and Neck Surgery, McGill University, Montreal, QC HC3 1E2, Canada; (I.d.A.F.M.); (F.F.); (M.A.); (P.R.F.B.); (M.H.); (M.M.); (A.M.); (M.A.-J.)
- Graduate Program in Dentistry, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Megan Araujo
- Division of Experimental Medicine and Oncology, Department of Medicine and Health Sciences, McGill University, Montreal, QC HC3 1E2, Canada; (M.A.); (J.B.)
| | - Jenna Bouassaly
- Division of Experimental Medicine and Oncology, Department of Medicine and Health Sciences, McGill University, Montreal, QC HC3 1E2, Canada; (M.A.); (J.B.)
| | - Fatemeh Farshadi
- Department of Otolaryngology and Head and Neck Surgery, McGill University, Montreal, QC HC3 1E2, Canada; (I.d.A.F.M.); (F.F.); (M.A.); (P.R.F.B.); (M.H.); (M.M.); (A.M.); (M.A.-J.)
- Division of Experimental Medicine and Oncology, Department of Medicine and Health Sciences, McGill University, Montreal, QC HC3 1E2, Canada; (M.A.); (J.B.)
| | - Mai Atique
- Department of Otolaryngology and Head and Neck Surgery, McGill University, Montreal, QC HC3 1E2, Canada; (I.d.A.F.M.); (F.F.); (M.A.); (P.R.F.B.); (M.H.); (M.M.); (A.M.); (M.A.-J.)
| | - Khashayar Esfahani
- Department of Oncology, McGill University, Montreal, QC HC3 1E2, Canada;
| | - Paulo Rogerio Ferreti Bonan
- Department of Otolaryngology and Head and Neck Surgery, McGill University, Montreal, QC HC3 1E2, Canada; (I.d.A.F.M.); (F.F.); (M.A.); (P.R.F.B.); (M.H.); (M.M.); (A.M.); (M.A.-J.)
- Graduate Program in Dentistry, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Michael Hier
- Department of Otolaryngology and Head and Neck Surgery, McGill University, Montreal, QC HC3 1E2, Canada; (I.d.A.F.M.); (F.F.); (M.A.); (P.R.F.B.); (M.H.); (M.M.); (A.M.); (M.A.-J.)
| | - Marco Mascarella
- Department of Otolaryngology and Head and Neck Surgery, McGill University, Montreal, QC HC3 1E2, Canada; (I.d.A.F.M.); (F.F.); (M.A.); (P.R.F.B.); (M.H.); (M.M.); (A.M.); (M.A.-J.)
| | - Alex Mlynarek
- Department of Otolaryngology and Head and Neck Surgery, McGill University, Montreal, QC HC3 1E2, Canada; (I.d.A.F.M.); (F.F.); (M.A.); (P.R.F.B.); (M.H.); (M.M.); (A.M.); (M.A.-J.)
| | - Moulay Alaoui-Jamali
- Department of Otolaryngology and Head and Neck Surgery, McGill University, Montreal, QC HC3 1E2, Canada; (I.d.A.F.M.); (F.F.); (M.A.); (P.R.F.B.); (M.H.); (M.M.); (A.M.); (M.A.-J.)
| | - Sabrina Daniela da Silva
- Department of Otolaryngology and Head and Neck Surgery, McGill University, Montreal, QC HC3 1E2, Canada; (I.d.A.F.M.); (F.F.); (M.A.); (P.R.F.B.); (M.H.); (M.M.); (A.M.); (M.A.-J.)
- Division of Experimental Medicine and Oncology, Department of Medicine and Health Sciences, McGill University, Montreal, QC HC3 1E2, Canada; (M.A.); (J.B.)
| |
Collapse
|
3
|
Wiriyakijja P, Niklander S, Santos-Silva AR, Shorrer MK, Simms ML, Villa A, Sankar V, Kerr AR, Riordain RN, Jensen SB, Delli K. World Workshop on Oral Medicine VIII: Development of a Core Outcome Set for Dry Mouth: A Systematic Review of Outcome Domains for Xerostomia. Oral Surg Oral Med Oral Pathol Oral Radiol 2023:S2212-4403(23)00068-8. [PMID: 37198047 DOI: 10.1016/j.oooo.2023.01.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/11/2022] [Accepted: 01/25/2023] [Indexed: 03/08/2023]
Abstract
OBJECTIVE The purpose of this study was to identify all outcome domains used in clinical studies of xerostomia, that is, subjective sensation of dry mouth. This study is part of the extended project "World Workshop on Oral Medicine Outcomes Initiative for the Direction of Research" to develop a core outcome set for dry mouth. STUDY DESIGN A systematic review was performed on MEDLINE, EMBASE, CINAHL, and Cochrane Central Register of Controlled Trials databases. All clinical and observational studies that assessed xerostomia in human participants from 2001 to 2021 were included. Information on outcome domains was extracted and mapped to the Core Outcome Measures in Effectiveness Trials taxonomy. Corresponding outcome measures were summarized. RESULTS From a total of 34,922 records retrieved, 688 articles involving 122,151 persons with xerostomia were included. There were 16 unique outcome domains and 166 outcome measures extracted. None of these domains or measures were consistently used across all the studies. The severity of xerostomia and physical functioning were the 2 most frequently assessed domains. CONCLUSION There is considerable heterogeneity in outcome domains and measures reported in clinical studies of xerostomia. This highlights the need for harmonization of dry mouth assessment to enhance comparability across studies and facilitate the synthesis of robust evidence for managing patients with xerostomia.
Collapse
|
4
|
Rades D, Zwaan I, Cacicedo J, Bruchhage KL, Hakim SG, Olbrich D, Schild SE, Tvilsted S, Janssen S. Impact of a mobile application (reminder app) on acute toxicity during radiotherapy of head-and-neck cancer – results of a randomized phase III trial (RAREST-02). BMC Cancer 2022; 22:989. [PMID: 36115962 PMCID: PMC9482290 DOI: 10.1186/s12885-022-10088-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/02/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Radiotherapy of head-and-neck cancer (SCCHN) is often associated with acute toxicity. In a previous trial, daily reminders by staff members to perform skin care resulted in less dermatitis. This randomized trial investigated whether a mobile application can replace these reminders.
Methods
Patients were stratified according to tumor site, treatment and center. Fifty-three patients were eligible for per-protocol-set (25 with, 28 without app). Primary endpoint was grade ≥ 2 dermatitis until 60 Gy. Secondary endpoints included dermatitis grade ≥ 2 until end of radiotherapy (EOT), dermatitis grade ≥ 3, and mucositis grade ≥ 2 and ≥ 3.
Results
After an interim analysis, the study was terminated (delayed and slow accrual). Until 60 Gy, grade ≥ 2 dermatitis rates were 72% with vs. 82% without app (p = 0.38), grade ≥ 3 dermatitis rates 20% vs. 11% (p = 0.45). Until EOT, grade ≥ 2 and ≥ 3 dermatitis rates were 72% vs. 86% (p = 0.22) and 24% vs. 18% (p = 0.58). Until 60 Gy, grade ≥ 2 and ≥ 3 mucositis rates were 76% vs. 82% (p = 0.58) and 20% vs. 36% (p = 0.20). Until EOT, corresponding mucositis rates were 76% vs. 82% (p = 0.58) and 28% vs. 43% (p = 0.26).
Conclusion
Given the limitations of this trial, the reminder app led to non-significant reduction of grade ≥ 2 dermatitis, grade ≥ 2 mucositis and ≥ 3 mucositis. Additional studies are required to define the value of reminder apps during radiotherapy for SCCHN.
Collapse
|
5
|
Mesko S, Wang H, Tung S, Wang C, Pasalic D, Ning MS, Pezzi TA, Moreno AC, Reddy JP, Garden AS, Rosenthal DI, Gunn GB, Frank SJ, Fuller CD, Morrison W, Su SY, Hanna E, Phan J. SABR for Skull Base Malignancies: A Systematic Analysis of Set-Up and Positioning Accuracy. Pract Radiat Oncol 2020; 10:363-371. [DOI: 10.1016/j.prro.2020.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/10/2020] [Accepted: 02/15/2020] [Indexed: 02/06/2023]
|
6
|
Tribius S, Pazdyka H, Tennstedt P, Busch CJ, Hanken H, Krüll A, Petersen C. Prognostic factors for lymphedema in patients with locally advanced head and neck cancer after combined radio(chemo)therapy- results of a longitudinal study. Oral Oncol 2020; 109:104856. [PMID: 32623355 DOI: 10.1016/j.oraloncology.2020.104856] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/05/2020] [Accepted: 06/07/2020] [Indexed: 12/14/2022]
Abstract
AIM Treatment-associated lymphedema is a common side effect after multimodal therapy for locally advanced head and neck cancer (LAHNC). This study aims to evaluate potential prognostic factors for head and neck lymphedema (HNL) and its potential impact on clinical outcome. METHODS This is a prospective data registry analysis on 280 patients treated for locally advanced head and neck cancer (LAHNC). All patients received surgery and risk-adapted platinum-based adjuvant intensity modulated radio(chemo)therapy (R(C)T, IMRT). Treatment- related toxicity was prospectively registered in a data base in regular intervals (baseline 3 months after R(C)T, every 3 months for 3 years, and every 6 months thereafter) and documented according to RTOG/EORTC toxicity criteria. RESULTS Predictive for any grade HNL 3 months after R(C)T were age, BMI, number of removed nodes and RT modality. Multivariable logistic regression analysis showed that in the acute toxicity phase (3 months after R(C)T) higher body mass index (BMI), extracapsular spread (ECE), linac-based IMRT, bilateral treatment to the neck (surgery and RT), and the addition of chemotherapy increase the risk for grade 2 HNL. For chronic HNL, higher BMI, linac-based IMRT and ECE were predictive for grade 2 HNL. Higher BMI is associated with better local control rates. Advanced age and ECE had a negative impact on OS. CONCLUSION HNL is a common acute and late side effect after multimodal therapy for LAHNC. Knowing risk factors for HNL prior to therapy enables caregivers and patients to take measures prior to treatment to prevent or limit the effects of HNL.
Collapse
Affiliation(s)
- Silke Tribius
- Department of Radiation Oncology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Henning Pazdyka
- Department of Radiation Oncology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Pierre Tennstedt
- Martini Clinic, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Chia-Jung Busch
- Department of Otolaryngology and Head and Neck Surgery, Center for Clinical Neurosciences, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Henning Hanken
- Department of Oral & Maxillofacial Surgery, Center for Clinical Neurosciences, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Andreas Krüll
- Department of Radiation Oncology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Cordula Petersen
- Department of Radiation Oncology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| |
Collapse
|
7
|
Radiotherapy-related skin toxicity (RAREST-02): A randomized trial testing the effect of a mobile application reminding head-and-neck cancer patients to perform skin care (reminder app) on radiation dermatitis. Trials 2020; 21:424. [PMID: 32450921 PMCID: PMC7249413 DOI: 10.1186/s13063-020-04307-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 04/02/2020] [Indexed: 11/10/2022] Open
Abstract
Background Radiotherapy of head-and-neck cancer can be associated with significant toxicities including dermatitis and oral mucositis. Severe toxicities may require interruptions of the radiation treatment associated with impairment of the patients’ prognoses. This study will investigate whether the addition of a reminder app to standard care can reduce dermatitis and oral mucositis rates during radiotherapy in these patients. Methods This randomized trial compares standard care supported by a reminder app (Arm A) to standard care alone (Arm B) with respect to grade ≥ 2 radiation dermatitis and oral mucositis at 60 Gy of radiotherapy, the minimum planned dose for patients receiving definitive or adjuvant radiotherapy for locally advanced head- and-neck cancer. Moreover, radiation-induced dermatitis and oral mucositis grade ≥ 3 at 60 Gy and both grade ≥ 2 and grade ≥ 3 at the end of radiation treatment (EOT) will be evaluated, as well as quality of life and pain. According to sample size calculations, 80 patients are required per arm within the full analysis set. Taking into account that 5% of patients will not qualify for full analysis set, 168 patients should be randomized. The impact of the reminder app will be considered clinically relevant, if the rates of grade ≥ 2 radiation dermatitis (primary endpoint) and oral mucositis (secondary endpoint) can be reduced by 20%. Discussion If the addition of a reminder app to standard care will lead to a significant reduction of radiation dermatitis and oral mucositis, it could become a helpful tool for patients with head-and-neck cancer during radiotherapy. Trial registration clinicaltrials.gov (NCT04110977). Registered on September 27, 2019. First patient is planned to be included in December 2019.
Collapse
|
8
|
Gil S, Solano E, Martínez-Trucharte F, Martínez-Esaín J, Pérez-Berná AJ, Conesa JJ, Kamma-Lorger C, Alsina M, Sabés M. Multiparametric analysis of the effectiveness of cisplatin on cutaneous squamous carcinoma cells using two different types of adjuvants. PLoS One 2020; 15:e0230022. [PMID: 32143211 PMCID: PMC7060073 DOI: 10.1371/journal.pone.0230022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 02/19/2020] [Indexed: 12/25/2022] Open
Abstract
The objective of this study was to regulate the cytotoxicity of cisplatin (cisPt) minimizing its adverse effects. For this purpose, the lowest cisPt concentration needed to obtain a significant positive response in cutaneous squamous cell carcinoma (cSCC) was explored. Two adjuvant agents as gold nanoparticles (AuNP) and chelating tricine were tested as enhancers in cisPt treatment. Effectiveness of all treatments was assessed by means of biochemical techniques, which offer quantitative data, as well as two microscopy–based techniques that provided qualitative cell imaging. The present work confirms the effectiveness of free cisplatin at very low concentrations. In order to enhance its effectiveness while the side effects were probably diminished, cisPt 3.5 μM was administered with AuNP 2.5 mM, showing an effectiveness practically equal to that observed with free cisPt. However, the second treatment investigated, based on cisPt 3.5 μM combined with tricine 50 mM, enhanced drug effectiveness, increasing the percentage of cells dying by apoptosis. This treatment was even better in terms of cell damage than free cisPt at 15 μM. Images obtained by TEM and cryo-SXT confirmed these results, since a notable number of apoptotic bodies were detected when cisPt was combined with tricine. Thus, tricine was clearly a better adjuvant for cisPt treatments.
Collapse
Affiliation(s)
- Silvia Gil
- Hospital Clínic de Barcelona, Barcelona, Spain
- Hospital Parc Taulí, Sabadell, Barcelona, Spain
- * E-mail:
| | | | | | | | | | | | - Christina Kamma-Lorger
- Australian Synchrotron–Australian Nuclear Science and Technology Organisation, Clayton, Victoria, Australia
| | | | - Manel Sabés
- ALBA Synchrotron Light Source, Barcelona, Spain
- Unitat de Biofísica, Faculty of Medicine, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| |
Collapse
|
9
|
Chang YF, Su NW, Tsai KJ, Leu YS, Lee JC, Liu CJ, Cheng CY, Lin JS, Chen YJ, Liu SH, Chen CH. Modified 3-weekly cisplatin or cisplatin-5-fluorouracil 5-day infusion as the concurrent chemoradiotherapy regimen in locally advanced squamous cell carcinoma of the head and neck: Comparison of efficacy and toxicity. JOURNAL OF CANCER RESEARCH AND PRACTICE 2020. [DOI: 10.4103/jcrp.jcrp_27_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
10
|
Ng SP, Wang H, Pollard C, Nguyen T, Bahig H, Fuller CD, Gunn GB, Garden AS, Reddy JP, Morrison WH, Shah S, Rosenthal DI, Frank SJ, Guha-Thakurta N, Ferrarotto R, Hanna EY, Su SY, Phan J. Patient Outcomes after Reirradiation of Small Skull Base Tumors using Stereotactic Body Radiotherapy, Intensity Modulated Radiotherapy, or Proton Therapy. J Neurol Surg B Skull Base 2019; 81:638-644. [PMID: 33381367 DOI: 10.1055/s-0039-1694052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 06/11/2019] [Indexed: 10/26/2022] Open
Abstract
Purpose The aim of this study was to evaluate outcomes of patients who received reirradiation for small skull base tumors utilizing either intensity modulated radiotherapy (IMRT), stereotactic body radiotherapy (SBRT), and proton radiotherapy (PRT). Methods Patients who received IMRT, SBRT or PRT reirradiation for recurrent or new small skull base tumors (< 60 cc) between April 2000 and July 2016 were identified. Those with < 3 months follow-up were excluded. Clinical outcomes and treatment toxicity were assessed. The Kaplan-Meier method was used to estimate the local control (LC), regional control (RC), distant control (DC), progression free survival (PFS), and overall survival (OS). Results Of the 75 patients eligible, 30 (40%) received SBRT, 30 (40%) received IMRT, and 15 (20%) received PRT. The median retreatment volume was 28 cc. The median reirradiation dose was 66 Gy in 33 fractions for IMRT/PRT, and 45 Gy in 5 fractions for SBRT. The median time to reirradiation was 41 months. With a median follow-up of 24 months, the LC, RC, DC, PFS, and OS rates were 84%, 79%, 82%, 60%, and 87% at 1 year, and 75%, 72%, 80%, 49%, and 74% at 2 years. There was no difference in OS between radiation modalities. The 1- and 2-year late Grade 3 toxicity rates were 3% and 11% respectively.. Conclusions Reirradiation of small skull base tumors utilizing IMRT, PRT, or SBRT provided good local tumor control and low rates of Grade 3 late toxicity. A prospective clinical trial is needed to guide selection of radiation treatment modalities.
Collapse
Affiliation(s)
- Sweet Ping Ng
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States.,Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - He Wang
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Courtney Pollard
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Theresa Nguyen
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Houda Bahig
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Clifton D Fuller
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - G Brandon Gunn
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Adam S Garden
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Jay P Reddy
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - William H Morrison
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Shalin Shah
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - David I Rosenthal
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Steven J Frank
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Nandita Guha-Thakurta
- Department of Diagnostic Radiology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Renata Ferrarotto
- Department of Thoracic Head and Neck Medical Oncology, Division of Cancer Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Ehab Y Hanna
- Department of Head and Neck Surgery, Division of Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Shirley Y Su
- Department of Head and Neck Surgery, Division of Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| | - Jack Phan
- Department of Radiation Oncology, Division of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, Unites States
| |
Collapse
|
11
|
Ho JC, Phan J. Reirradiation of head and neck cancer using modern highly conformal techniques. Head Neck 2018; 40:2078-2093. [DOI: 10.1002/hed.25180] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 12/06/2017] [Accepted: 02/20/2018] [Indexed: 12/11/2022] Open
Affiliation(s)
- Jennifer C. Ho
- Department of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston Texas
| | - Jack Phan
- Department of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston Texas
| |
Collapse
|
12
|
Abstract
PURPOSE OF REVIEW Skull base reirradiation is challenging due to complex anatomy, enrichment of treatment-resistant clonogens, and increased risk of severe treatment complications. Without local therapy, early mortality is certain and tumor progression can result in debilitating symptoms. Modern radiotherapy advancements, such as image-guided radiation therapy (IGRT), intensity-modulated radiation therapy (IMRT), particle therapy, and stereotactic radiation therapy (SRT), are attractive for skull base reirradiation. RECENT FINDINGS Although limited by their retrospective nature and heterogeneous patient populations, several studies have demonstrated that reirradiation with these highly conformal techniques is feasible. Compared to IMRT or particle therapy reirradiation, SRT reirradiation appears promising with lower toxicity and increased convenience. Here, we provide thorough explanations for each technology and summarize the most relevant and recent studies, with particular attention to efficacy and toxicity. Skull base reirradiation using these extremely conformal therapy techniques requires meticulous treatment planning and should be delivered by experienced teams.
Collapse
|
13
|
Gil S, Yébenes M, Luelmo J, Alsina M, Sabés M. A comparative study of the effectiveness of cisplatin and 5-fluorouracil on cutaneous squamous human carcinoma cell line: Potential chemotherapy alternative to surgery. Dermatol Ther 2016; 29:341-344. [PMID: 27292650 DOI: 10.1111/dth.12373] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Surgery as treatment for local invasive cutaneous squamous cell carcinoma (cSCC) is not always feasible due to the age and/or the health status of patients. Thus, the investigation of new strategies to improve the quality of life of them is required. The aim of this work is to investigate two chemotherapy agents individually on cSCC cells with the purpose to provide a better understanding of the effectiveness underlying each one. The cisplatin effectiveness is compared at different times with that observed for the 5-fluorouracil treatment. The effectiveness of both was assessed by using flow cytometry to determine the survival cell ratio, and QBlue test to study the cell recovery ability after treatments. A significant increase in the number of apoptotic cells, especially 48 hours after treatments, has been detected. Despite this, cisplatin arises as the most promising agent for the treatment of local invasive cutaneous squamous cell carcinoma due to the fact that a lower concentration and time are required to observe a higher effectiveness on cells with respect to the 5-fluorouracil. An optimal cisplatin-based chemotherapy might provide a better outcome for patients affected by a local invasive cSCC rather than surgery.
Collapse
Affiliation(s)
- S Gil
- Dermatology Department, Hospital Parc Taulí, Sabadell (Barcelona), Spain.
| | - M Yébenes
- Dermatology Department, Hospital Parc Taulí, Sabadell (Barcelona), Spain
| | - J Luelmo
- Dermatology Department, Hospital Parc Taulí, Sabadell (Barcelona), Spain
| | - M Alsina
- Dermatology Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | - M Sabés
- Department of Biophysics, Faculty of Medicine, Universitat Autònoma de Barcelona, Bellaterra (Barcelona), Spain
| |
Collapse
|
14
|
Do we need 5-FU in addition to cisplatin for chemoradiation of locally advanced head-and-neck cancer? Oral Oncol 2016; 57:40-5. [DOI: 10.1016/j.oraloncology.2016.04.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/07/2016] [Accepted: 04/08/2016] [Indexed: 11/21/2022]
|
15
|
Abstract
PURPOSE OF REVIEW Head and neck lymphedema (HNL) is a common and often debilitating cancer treatment effect that is under-researched and ill defined. We examined current literature and reviewed historical treatment approaches. We propose a model for evaluation and treatment of HNL used at The University of Texas M. D. Anderson Cancer Center (MDACC) for patients with head and neck cancer (HNC). RECENT FINDINGS Despite the morbidity associated with HNL in patients with HNC, to our knowledge, no article has been published within the past 18 months whose primary focus is HNL. Eight publications included HNL but only as a secondary focus related to treatment effect, risk of dysphagia, prognostic indicator of underlying disease, and quality of life. A potential benefit of selenium treatment to reduce HNL was reported. SUMMARY This article highlights the recent literature regarding HNL in patients treated for HNC. Although HNL is reported as a potential complication of HNC treatment, no clear definition of the disease or its management are published. Our early experience using an objective evaluation and treatment protocol holds promise for a better understanding of HNL in patients treated for head and neck malignancy.
Collapse
|
16
|
Cvek J, Kubes J, Skacelikova E, Otahal B, Kominek P, Halamka M, Feltl D. Hyperfractionated accelerated radiotherapy with concomitant integrated boost of 70-75 Gy in 5 weeks for advanced head and neck cancer. A phase I dose escalation study. Strahlenther Onkol 2012; 188:666-70. [PMID: 22648405 DOI: 10.1007/s00066-012-0128-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 03/27/2012] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE The present study was performed to evaluate the feasibility of a new, 5-week regimen of 70-75 Gy hyperfractionated accelerated radiotherapy with concomitant integrated boost (HARTCIB) for locally advanced, inoperable head and neck cancer. METHODS AND MATERIALS A total of 39 patients with very advanced, stage IV nonmetastatic head and neck squamous cell carcinoma (median gross tumor volume 72 ml) were included in this phase I dose escalation study. A total of 50 fractions intensity-modulated radiotherapy (IMRT) were administered twice daily over 5 weeks. Prescribed total dose/dose per fraction for planning target volume (PTV(tumor)) were 70 Gy in 1.4 Gy fractions, 72.5 Gy in 1.45 Gy fractions, and 75 Gy in 1.5 Gy fractions for 10, 13, and 16 patients, respectively. Uninvolved lymphatic nodes (PTV(uninvolved)) were irradiated with 55 Gy in 1.1 Gy fractions using the concomitant integrated boost. RESULTS Acute toxicity was evaluated according to the RTOG/EORTC scale; the incidence of grade 3 mucositis was 51% in the oral cavity/pharynx and 0% in skin and the recovery time was ≤ 9 weeks for all patients. Late toxicity was evaluated in patients in complete remission according to the RTOG/EORTC scale. No grade 3/4 late toxicity was observed. The 1-year locoregional progression-free survival was 50% and overall survival was 55%. CONCLUSION HARTCIB (75 Gy in 5 weeks) is feasible for patients deemed unsuitable for chemoradiation. Acute toxicity was lower than predicted from radiobiological models; duration of dysphagia and confluent mucositis were particularly short. Better conformity of radiotherapy allows the use of more intensive altered fractionation schedules compared with older studies. These results suggest that further dose escalation might be possible when highly conformal techniques (e.g., stereotactic radiotherapy) are used.
Collapse
Affiliation(s)
- J Cvek
- Department of Oncology, University Hospital Ostrava, 17. listopadu 1790, 70852, Ostrava, Czech Republic.
| | | | | | | | | | | | | |
Collapse
|
17
|
Molecular effects of chemotherapeutic drugs and their modulation by antioxidants in the testis. Eur J Pharmacol 2012; 674:207-16. [DOI: 10.1016/j.ejphar.2011.11.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Revised: 11/08/2011] [Accepted: 11/15/2011] [Indexed: 11/23/2022]
|
18
|
Cisplatin superior to carboplatin in adjuvant radiochemotherapy for locally advanced cancers of the oropharynx and oral cavity. Strahlenther Onkol 2011; 188:42-8. [PMID: 22194029 DOI: 10.1007/s00066-011-0005-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2011] [Accepted: 09/15/2011] [Indexed: 10/14/2022]
Abstract
BACKGROUND AND PURPOSE The optimal radiochemotherapy regimen for squamous cell carcinoma of the head and neck (SCCHN) is controversial. In most cases, platin-based chemotherapy regimens are used. However, uncertainty exists whether cisplatin or carboplatin is the better choice. This retrospective study compared radiochemotherapy with either cisplatin or carboplatin in patients with locally advanced SCC of the oropharynx and oral cavity. PATIENTS AND METHODS Concurrent chemotherapy consisted of two courses of cisplatin (20 mg/m(2) on days 1-5 and days 29 - 33; n = 65) or two courses of carboplatin (AUC 1.5 on days 1-5 and days 29 - 33; n = 41). Both regimens were retrospectively compared for locoregional control (LRC), overall survival (OS), and toxicity. Thirteen additional potential prognostic factors were evaluated including age, gender, ECOG performance status, tumor site, histologic grade, T/N category, AJCC stage, year of treatment, extent of resection, interval between surgery and RT, completion of chemotherapy, and radiotherapy breaks. RESULTS The 3-year LRC rates were 85% in the cisplatin group and 62% in the carboplatin group, respectively (p = 0.004). The 3-year OS rates were 78% and 51%, respectively (p = 0.001). Acute toxicity (mucositis, skin toxicity, nausea/vomiting, renal toxicity, hematologic toxicity) and late toxicity (xerostomia, neck fibrosis, skin toxicity, lymph edema) rates were not significantly different between the two groups. On multivariate analysis, better LRC was significantly associated with cisplatin (p < 0.001), an ECOG performance status of 0-1 (p = 0.001), and an interval between surgery and RT of ≤ 6 weeks (p = 0.001). Improved OS was significantly associated with cisplatin (p < 0.001) and completion of chemotherapy (p = 0.002). CONCLUSION For adjuvant radiochemotherapy of patients with locally advanced cancer of the oropharynx and oral cavity, cisplatin appears preferable to carboplatin as it resulted in better outcomes without increased toxicity.
Collapse
|
19
|
Sadat F, Wienke A, Dunst J, Kuhnt T. Survival of patients with head and neck cancer. Impact of physical status and comorbidities. Strahlenther Onkol 2011; 188:62-70. [PMID: 22189439 DOI: 10.1007/s00066-011-0009-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Accepted: 09/15/2011] [Indexed: 10/14/2022]
Abstract
BACKGROUND Prognostic factors (e.g., gender, tumor stage, and hypoxia) have an impact on survival in patients with head and neck cancer. Thus, the impact of physical status and comorbidities on treatment decision and survival were evaluated. PATIENTS AND METHODS A total of 169 primary, inoperable patients with squamous cell cancer of the head and neck were retrospectively investigated. Patients were treated with hyperfractionated accelerated radio(chemo)therapy (HARcT) or hypofractionated radio(chemo)therapy (HypoRcT). Depending on the individual patient's situation (Karnofsky Performance Index, KPI), treatment for patients with a KPI of 80-100% was generally radiochemotherapy and for patients with a KPI ≤ 70% treatment was radiotherapy alone. In addition, all comorbidities were evaluated. Uni- and multivariate proportional hazards model were used, and overall survival (OS) was estimated by the Kaplan-Meier method. RESULTS Treatment consisted of HARcT for 76 patients (45%), HART for 28 patients (17%), HypoRcT for 14 patients(8%), and HypoRT for 51 patients (30%). Of the patients, 107 patients (63%) presented with a KPI of 80-100%. OS (20%) was significantly better for patients with a KPI of 80-100%, while the OS for patients with a KPI ≤ 70% was 8% (p < 0.001). Good KPI, total irradiation dose (> 70 Gy), and chemotherapy were significant prognostic factors for better OS. CONCLUSION Our retrospective analysis shows that performance status with dependency on comorbidities was an independent risk factor for OS.
Collapse
Affiliation(s)
- F Sadat
- Clinic of Radiotherapy, Friedrich Alexander University, Erlangen, Germany
| | | | | | | |
Collapse
|
20
|
Dysphagia. Impact on quality of life after radio(chemo)therapy of head and neck cancer. Strahlenther Onkol 2011; 187:744-9. [PMID: 22037655 DOI: 10.1007/s00066-011-2275-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Accepted: 07/21/2011] [Indexed: 10/15/2022]
Abstract
BACKGROUND In the past, xerostomia was considered one of the most important determining factors of quality of life (QoL) after radiotherapy (RT) of the head and neck region. In addition, more recent studies have shown that RT-induced dysphagia has an essential influence on the QoL. PATIENTS AND METHODS Between September 2005 and August 2007, 35 patients with locally advanced squamous cell carcinoma of the head and neck region were included in the prospective study. Patients were treated by IMAT (intensity-modulated arc therapy) or IMRT (intensity-modulated radiotherapy) planned on 3D imaging. A total of 28 patients (80%) received concomitant chemotherapy. The evaluation of QoL (EORTC QLQ-C30, H&N C-35) and toxicities (CTC 2.0) were assessed at the beginning of, during, and after RT as well as up to 12 months after the end of therapy. RESULTS At the end of therapy, 86% of the patients experienced difficulties in swallowing (62% CTC II-III°). Twelve months after the end of treatment, 15% still suffered from dysphagia CTC II-III°. Concomitant chemotherapy exacerbated the incidence and gravity of dysphagia, resulting in increasing dietary problems. QoL (EORTC) was significantly affected by dysphagia. In particular, the global state of health and QoL were influenced at the end of treatment (p=0.033) and at a later stage (p=0.050). CONCLUSION The findings of this study suggest that more emphasis should be placed on structured clinical diagnostics, therapy, and rehabilitation of deglutition problems. This means in particular to not only spare the parotids while planning the irradiation, but also to take into consideration the important structures for deglutition, like the retropharyngeal muscles.
Collapse
|
21
|
Semrau R, Temming S, Preuss SF, Klubmann JP, Guntinas-Lichius O, Müller RP. Definitive radiochemotherapy of advanced head and neck cancer with carboplatin and paclitaxel : a phase II study. Strahlenther Onkol 2011; 187:645-50. [PMID: 21947123 DOI: 10.1007/s00066-011-1111-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 07/11/2011] [Indexed: 12/31/2022]
Abstract
PURPOSE To report outcome and toxicity of concurrent radiochemotherapy with carboplatin and paclitaxel in advanced squamous cell carcinomas of the oropharynx and hypopharynx. PATIENTS AND METHODS Advanced inoperable carcinomas of the oropharynx and hypopharynx were treated with either hyper-fractionated, accelerated radiotherapy (50.0 Gy/2.0 with concomitant boost to 69.2 Gy/1.6) or conventional fractionated radiotherapy (70.2-72 Gy/1.8) concurrent with paclitaxel 40 mg/m2 and carboplatin AUC 1 weekly for 6 weeks. Acute and long-term toxicity was measured according to WHO- and CTC-criteria. RESULTS A total of 84 patients were included between 2000 and 2008. Median follow-up time of patients alive was 36 months. Conventionally fractionated radiotherapy was given to 16 patients, while 68 patients were treated with concomitant boost. Finally, 88.1% of patients received full dose paclitaxel. Acute mucositis ≥ grade 3 was present in 51.2% of patients, while 6% of patients experienced ≥ grade 3 leucopenia and thrombopenia. A supportive gastric feeding tube was implanted in 89.1% of patients. Overall survival after 2 years was 46.3%, progression-free survival after 2 years was 41.0%. There was no significant survival difference between the different radiotherapy protocols. CONCLUSION Concomitant carboplatin and paclitaxel is feasible and effective in advanced carcinomas of the head and neck.
Collapse
Affiliation(s)
- Robert Semrau
- Department of Radiation Oncology, University of Cologne, Germany.
| | | | | | | | | | | |
Collapse
|
22
|
Accelerated radiotherapy with concomitant boost technique (69.5 Gy/5 weeks). Strahlenther Onkol 2011; 187:651-5. [DOI: 10.1007/s00066-011-2246-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Accepted: 04/08/2011] [Indexed: 10/17/2022]
|
23
|
Studer G, Rordorf T, Glanzmann C. Impact of tumor volume and systemic therapy on outcome in patients undergoing IMRT for large volume head neck cancer. Radiat Oncol 2011; 6:120. [PMID: 21936952 PMCID: PMC3189119 DOI: 10.1186/1748-717x-6-120] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Accepted: 09/22/2011] [Indexed: 11/15/2022] Open
Abstract
Background Former prospective analyses revealed gross tumor volume (GTV) as the most reliable parameter to statistically significantly predict disease control in head neck cancer (HNC) patients treated with definitive intensity modulated radiation therapy (IMRT) +/-concomitant systemic therapy. The most 'unfavourable' subgroup was characterized by total GTV (tGTV) of > 70 cc, translating in ~50 and 65% 3-year disease free (DFS) and overall survival (OAS, vs 68% and 88% in tGTV < 70 cc, p = 0.001 and 0.0001), and ~25% distant spread (vs 6% for tGTV < 70 cc, p < 0.0001). The aim of this report was to analyze whether there is a subgroup out of patients with tGTV > 70 cc, which only marginally benefits from intensive curative treatment. Results Between 03/2002-03/2011, 112 HNC patients with tGTV > 70 cc were definitively irradiated with curative intention. Mean tGTV was 104 cc (71-251). 98/112 (88%) patients underwent systemic therapy. Parameters with potential impact on disease outcome were retrospectively tested. The 3-year local-regional control (LRC), DFS and OAS rates were 61%, 50%, and 58%. The used cut-off value of 130 cc revealed an inverse association between tGTV and outcome. Patients able to undergo any systemic therapy (n = 98, mean tGTV0 103 cc, mean age 60 years) showed a satisfying and significantly superior outcome compared to the subgroup with radiation alone (n = 14, mean tGTV 99 cc, mean age 73 years), with 53% vs 17% 3-year DFS (p = 0.01). Radiation alone for tGTV > 130 cc failed to aim its curative goal in 3/3 patients. Conclusion Patients with tGTV > 70 cc unable to undergo any systemic therapy represented a subgroup in which disease control was achievable in < 20% following curatively intended IMRT. Prospective testing of a larger sample size is needed to evaluate, if radiation alone for tGTV >~130 cc fails to meet its curative aim.
Collapse
Affiliation(s)
- Gabriela Studer
- Department of Radiation Oncology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland.
| | | | | |
Collapse
|
24
|
Rades D, Seibold ND, Gebhard MP, Noack F, Schild SE, Thorns C. Prognostic factors (including HPV status) for irradiation of locally advanced squamous cell carcinoma of the head and neck (SCCHN). Strahlenther Onkol 2011; 187:626-32. [DOI: 10.1007/s00066-011-1139-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 06/14/2011] [Indexed: 10/17/2022]
|
25
|
Comparison of radiochemotherapy alone to surgery plus radio(chemo)therapy for non-metastatic stage III/IV squamous cell carcinoma of the head and neck: A matched-pair analysis. Strahlenther Onkol 2011; 187:541-7. [PMID: 21858415 DOI: 10.1007/s00066-011-2262-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 05/23/2011] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE The standard treatment for non-metastatic stage III/IV squamous cell carcinoma of the head and neck varies worldwide. This study compared the outcomes of radiochemotherapy alone to surgery followed by radio(chemo)therapy (radiotherapy plus/minus concurrent chemotherapy). PATIENTS AND METHODS Data from 148 patients treated with radiochemotherapy alone were matched to 148 patients treated with surgery plus radio(chemo)therapy. Groups were matched 1:1 for nine potential prognostic factors including age, gender, performance status, tumor site, histologic grade, T category, N category, AJCC stage, and hemoglobin level before radiotherapy, and compared for locoregional control, metastases-free survival, and overall survival. RESULTS Locoregional control rates at 1, 2, and 3 years were 81%, 73%, and 67% after surgery plus radio(chemo)therapy and 81%, 74%, and 65% after radiochemotherapy alone (p = 0.89). Metastases-free survival rates were 86%, 80%, and 75% after surgery plus radio(chemotherapy) versus 87%, 80%, and 72% after radiochemotherapy alone (p = 0.57). Overall survival rates were 80%, 64%, and 63% after surgery plus radio(chemo)therapy versus 83%, 68%, and 60% after radiochemotherapy alone (p = 0.96). On multivariate analyses, T category (p < 0.001), N category (p = 0.004), and hemoglobin level prior to radiotherapy (p < 0.001) were associated with locoregional control. Histologic grade (p = 0.045), T category (p < 0.001), N category (p = 0.003), and hemoglobin level prior to radiotherapy (p < 0.001) were associated with metastases-free survival. Histologic grade (p = 0.030), ECOG performance status (p = 0.033), T category (p = 0.007), N category (p = 0.024) and hemoglobin level before radiotherapy (p < 0.001) were associated with overall survival. CONCLUSION Outcomes of radiochemotherapy alone appeared similar to those of surgery plus radio(chemo)therapy. Randomized trials comparing both treatments for different tumor sites are warranted.
Collapse
|
26
|
Radiosensitization of head and neck cancer cells by the phytochemical agent sulforaphane. Strahlenther Onkol 2011; 187:575-80. [PMID: 21858418 DOI: 10.1007/s00066-011-2218-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 02/04/2011] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND PURPOSE Sulforaphane is a naturally occurring compound found in broccoli and other cruciferous vegetables. Recently it gained attention because of its antiproliferative properties in many cancer cell lines. The aim of this study was to investigate whether sulforaphane could act as a radiosensitizer in head and neck squamous cell carcinoma cell lines. MATERIALS AND METHODS Four head and neck squamous cell carcinoma cell lines (i.e., (HNSCC) SCC9, SCC25, CAL27, and FADU) were treated with sulforaphane and subsequently irradiated. Then proliferation and clonogenic assays were performed. Apoptosis was detected by flow cytometry. Possible regulation of Akt and Mcl-1 was investigated by western blotting. RESULTS Sulforaphane and radiation in combination leads to stronger inhibition of cell proliferation and of clonogenic survival than each treatment method alone. Western blot analysis of Akt and Mcl-1 showed no changed expression. CONCLUSION Sulforaphane is a promising agent in the treatment of head and neck cancer due to its antiproliferative and radio-sensitizing properties. A combination of sulforaphane and radiation decreases clonogenic survival. Apoptosis is not regulated through Akt or the Mcl-1 protein.
Collapse
|
27
|
Budach W, Bölke E, Fietkau R, Buchali A, Wendt TG, Popp W, Matuschek C, Sack H. Evaluation of Time, Attendance of Medical Staff, and Resources During Radiotherapy for Head and Neck Cancer Patients. Strahlenther Onkol 2011; 187:449-60. [DOI: 10.1007/s00066-011-2273-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Accepted: 05/16/2011] [Indexed: 11/29/2022]
|
28
|
Prospective study on the dose distribution to the acoustic structures during postoperative 3D conformal radiotherapy for parotid tumors: dosimetric and audiometric aspects. Strahlenther Onkol 2011; 187:350-6. [PMID: 21603994 DOI: 10.1007/s00066-011-2170-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Accepted: 02/22/2011] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND PURPOSE To analyze dose distribution in the hearing organ and to evaluate the dose effect on the hearing thresholds in patients treated with post-parotidectomy 3-dimensional conformal radiotherapy (3D-CRT). METHODS AND MATERIALS A total of 17 patients received post-parotidectomy 3D-CRT (median dose: 63 Gy). The audiometric evaluation comprised pure tone audiometry and tympanometry performed before radiotherapy (RT) and 3, 6, and 24 months after RT. The ear structures were delineated on planning computer tomography scans. Mean and maximum doses were calculated and dose-volume histograms were plotted. RESULTS Before RT, the median baseline audiometric thresholds were normal. At 3 months post-RT, 3 patients were diagnosed as having middle ear underpressure and/or effusion that resolved completely by 6 months. During 2-year follow-up, none of the ears showed perceptive hearing loss at speech frequencies. The mean doses at ipsilateral external auditory canal, mastoids cells, tympanic case, Eustachian tube, semicircular canals, and cochlea were 44.8 Gy, 39.0 Gy, 30.9 Gy, 33.0 Gy, 19.6 Gy, and 19.2 Gy, respectively. The doses to the contralateral ear were negligible, except for the Eustachian tube (up to 28.2 Gy). CONCLUSION Post-parotidectomy 3D-CRT is associated with relatively low doses to the ear and the surrounding structures. Post-RT audiometry did not show any permanent (neither conductive nor perceptive) hearing impairment. Only in 3 patients were there signs of transient unilateral dysfunction of the Eustachian tube observed during the first few months after RT. Longer follow-up and larger patient series are warranted to confirm these preliminary findings.
Collapse
|
29
|
Effectiveness of postoperative radiotherapy in patients with small oral and oropharyngeal squamous cell carcinoma and concomitant ipsilateral singular cervical lymph node metastasis (pN1). Strahlenther Onkol 2011; 187:337-43. [DOI: 10.1007/s00066-011-2206-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 03/16/2011] [Indexed: 01/30/2023]
|
30
|
Selzer E, Liederer S, Lemaire C, Kren G, Radonjic D, Kornek G, Knocke T, Pötter R, Bachtiary B. Incidence of dermatitis in head and neck cancer patients treated with primary radiotherapy and cetuximab. Strahlenther Onkol 2011; 187:373-7. [DOI: 10.1007/s00066-011-2217-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2010] [Accepted: 02/04/2011] [Indexed: 11/27/2022]
|
31
|
Adjuvant Low Single Dose Cisplatin-based Concurrent Radiochemotherapy of Oral Cavity and Oropharynx Carcinoma. Strahlenther Onkol 2011; 187:292-9. [DOI: 10.1007/s00066-011-2186-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Accepted: 02/04/2011] [Indexed: 10/18/2022]
|
32
|
Combined-modality treatment in advanced oral squamous cell carcinoma. Strahlenther Onkol 2011; 187:555-60. [DOI: 10.1007/s00066-010-2245-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Accepted: 12/01/2010] [Indexed: 10/18/2022]
|
33
|
Zwicker F, Roeder F, Thieke C, Timke C, Münter MW, Huber PE, Debus J. IMRT reirradiation with concurrent cetuximab immunotherapy in recurrent head and neck cancer. Strahlenther Onkol 2010; 187:32-8. [PMID: 21234529 DOI: 10.1007/s00066-010-2149-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Accepted: 10/07/2010] [Indexed: 01/20/2023]
Abstract
PURPOSE In this retrospective investigation, the outcome and toxicity after reirradiation with concurrent cetuximab immunotherapy of recurrent head and neck cancer (HNC) in patients who had contraindications to platinum-based chemotherapy were analyzed. MATERIALS AND METHODS Ten patients with locally advanced recurrent HNC were retrospectively evaluated. In 9 cases, histology was squamous cell carcinoma, in one case adenoid cystic carcinoma. External beam radiotherapy was part of the initial treatment in all cases. Reirradiation was carried out using step-and-shoot intensity-modulated radiotherapy (IMRT) with a median dose of 50.4 Gy. Cetuximab was applied as loading dose (400 mg/m(2)) 1 week prior to reirradiation and then weekly concurrently with radiotherapy (250 mg/m(2)). RESULTS The median overall survival time after initiation of reirradiation was 7 months; the 1-year overall survival (OS) rate was 40%. Local failure was found in 3 patients, resulting in a 1-year local control (LC) rate of 61%. The 1-year locoregional control (LRC) rate was 44%, while the 1-year distant metastasis-free survival (DMFS) was 75%. Acute hematological toxicity was not observed in the group. Severe acute toxicity included one fatal infield arterial bleeding and one flap necrosis. Severe late toxicities were noted in 2 patients: fibrosis of the temporomandibular joint in 1 patient and stenosis of the cervical esophagus in another. CONCLUSIONS IMRT reirradiation with concurrent cetuximab immunotherapy in recurrent HNC is feasible with acceptable acute toxicity. Further investigations are necessary to determine the clinical role of this therapy concept.
Collapse
Affiliation(s)
- Felix Zwicker
- Department of Radiation Oncology, University of Heidelberg, Heidelberg, Germany.
| | | | | | | | | | | | | |
Collapse
|
34
|
Feasibility, toxicity, and efficacy of short induction chemotherapy of docetaxel plus cisplatin or carboplatin (TP) followed by concurrent chemoradio-therapy for organ preservation in advanced cancer of the hypopharynx, larynx, and base of tongue. Early results. Strahlenther Onkol 2010; 187:15-22. [PMID: 21234526 DOI: 10.1007/s00066-010-2178-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Accepted: 09/29/2010] [Indexed: 12/14/2022]
Abstract
PURPOSE Concurrent chemoradiotherapy (CRT) is standard treatment for advanced head and neck cancer. Whether short induction chemotherapy (ICT) provides additional benefit or, in particular, predictive benefit for the response to chemoradiotherapy is an open question. The present study aimed to assess the feasibility, toxicity, and efficacy of induction with docetaxel and platinum salt (TP) and subsequent CRT. PATIENTS AND METHODS A total of 25 patients with functionally inoperable cancer of the base of the tongue, hypopharynx, or larynx received 1 cycle of docetaxel (75 mg/m², day 1) combined with either cisplatin (30 mg/m², days 1-3; n = 23) or carboplatin (AUC 1.5 days 1-3; n = 2). Responders (n = 22, >30% tumor reduction, graded by endoscopy) and 1 non-responder received CRT (target dose: 69-72 Gy) with cisplatin/paclitaxel, carboplatin/paclitaxel, or cisplatin/docetaxel. RESULTS All patients completed ICT with acceptable toxicity (leukocytopenia grade 4: 8%). The remission rate of the primary tumor was 88% (22/25 patients). There was no need to delay CRT due to toxicity in any case. Each patient received the full radiation dose. Of the patients, 56% received >80% of the chemotherapy. The acute toxicity of CRT was moderate, no grade 4 toxicities occurred, while grade 3 toxicities included the following: infection (39%), dermatitis (13%), leukocytopenia (30%), and thrombocytopenia (4%). The local control rate was 84.6% ± 8.5% and the survival rate was 89.6% ± 7.2% at 12 months. Organ preservation was possible in 22/23 (95%) cases. CONCLUSION Short induction with a TP regimen and subsequent CRT with a taxan is feasible and associated with an encouraging local control rate.
Collapse
|
35
|
Fraunholz I, Grau K, Weiss C, Rödel C. Patient- and treatment-related risk factors for nausea and emesis during concurrent chemoradiotherapy. Strahlenther Onkol 2010; 187:1-6. [PMID: 21234525 DOI: 10.1007/s00066-010-2196-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Accepted: 08/02/2010] [Indexed: 11/28/2022]
Abstract
PURPOSE To evaluate the prevalence of acute nausea and emesis during concurrent chemoradiotherapy (CRT) with emphasis on the influence of patient- and treatment-related risk factors and prophylactic antiemetic medication. PATIENTS AND METHODS A total of 335 patients treated with different intravenous standard chemoradiotherapy protocols in the inpatient setting were included in this retrospective study. Acute nausea and emesis, scored according to the CTC (version 3.0) criteria, were evaluated during 821 chemotherapy cycles. Side effects were correlated with patient-, tumor-, and treatment-related parameters. RESULTS Overall, at least one episode of acute nausea occurred in 48% of the patients and at least one episode of vomiting occurred in 25% of patients. The emetogenic level of the applied chemotherapy protocol was the most significant risk factor for developing nausea and emesis (p < 0.0001). The site of irradiation - namely the thorax (p = 0.0110) and head and neck (p = 0.0415) - was also confirmed as a risk factor. Patient-related parameters, e.g., female gender (p = 0.0003), young age (< 40 years; p = 0.0029), weight loss > 5% (p = 0.0004), and the presence of a percutaneous endoscopic gastrostomy (PEG; p = 0.0071), were associated with higher rates of nausea and emesis, while a history of alcohol abuse showed a protective effect (p = 0.0553). In high emetogenic chemotherapy protocols, prophylaxis with 5-HT3 antagonist plus dexamethasone was superior to 5-HT3 antagonist alone (p = 0.0383). CONCLUSION Future studies should evaluate more effective prophylaxis protocols in CRT in order to reduce the high rates of nausea and emesis.
Collapse
Affiliation(s)
- Ingeborg Fraunholz
- Department of Radiation Oncology, JW Goethe University, Frankfurt/Main, Germany.
| | | | | | | |
Collapse
|
36
|
Dinapoli N, Parrilla C, Galli J, Autorino R, Miccichè F, Bussu F, Balducci M, D'Alatri L, Marchese R, Rigante M, Di Lella G, Liberati L, Almadori G, Paludetti G, Valentini V. Multidisciplinary approach in the treatment of T1 glottic cancer. The role of patient preference in a homogenous patient population. Strahlenther Onkol 2010; 186:607-13. [PMID: 21069268 DOI: 10.1007/s00066-010-2142-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Accepted: 08/25/2010] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE To compare oncological outcome and voice quality among a uniform and well-defined subset of patients with T1 glottic carcinoma. PATIENTS AND METHODS Patients, affected by laryngeal glottic carcinoma, treated by laser CO2 surgery or radiotherapy, have been analyzed. Overall survival and disease-free survival were calculated. In order to verify differences in functional outcomes and voice quality, all patients were interviewed during their last follow-up visit during 2009 using the VHI (Voice Handicap Index) questionnaire. The data were analyzed using the MedCalc software. RESULTS A total of 143 patients were analyzed: 73 underwent surgery and 70 underwent radiotherapy. No statistically significant differences were found between the two groups in terms of overall survival and disease-free survival; dividing patients into stages T1a and T1b also made no difference. In order to evaluate the differences in outcomes for surgery and radiotherapy, patients were interviewed using the VHI questionnaire. Better scores for each category in the VHI were found for patients receiving radiotherapy compared to surgery (physical: p = 0.0023; functional: p < 0.0001; environmental: p < 0.001). The median VHI score for radiotherapy patients was 4, while for surgical patients it was 18 (p < 0.0001). CONCLUSION This study confirms the well-known knowledge that results from radiotherapy and surgery in early glottic cancer treatment are equivalent. Furthermore, the role of patient preference in the treatment modality choice and the value of a multidisciplinary approach for a detailed and multi-oriented discussion with the patient are outlined.
Collapse
Affiliation(s)
- Nicola Dinapoli
- Department of Radiation Oncology, Catholic University of the Sacred Heart, Rome, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Platteaux N, Dirix P, Hermans R, Nuyts S. Brachial plexopathy after chemoradiotherapy for head and neck squamous cell carcinoma. Strahlenther Onkol 2010; 186:517-20. [PMID: 20814659 DOI: 10.1007/s00066-010-2099-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2009] [Accepted: 04/29/2010] [Indexed: 12/25/2022]
Abstract
PURPOSE To evaluate late brachial plexopathy after primary chemoradiotherapy for locally advanced head and neck squamous cell carcinoma. PATIENTS AND METHODS Consecutive 43 disease-free patients were evaluated by a specifically developed 26-item questionnaire. Retrospectively, the brachial plexus was delineated and the dose-volume histograms were calculated. RESULTS After a median follow-up of 24 months, no radiation-induced brachial plexopathy was reported in these 43 patients. CONCLUSION No radiation-induced brachial plexopathy was seen in the patient group, although 72.1% of the brachial plexuses received doses > 60 Gy. These findings should prompt further prospective studies and also stress the importance of trying to keep the doses to the brachial plexus as low as possible while covering the target volumes well.
Collapse
Affiliation(s)
- Nele Platteaux
- Department of Radiation Oncology, Leuvens Kankerinstituut, University Hospitals Leuven, Campus Gasthuisberg, Leuven, Belgium.
| | | | | | | |
Collapse
|
38
|
Rades D, Kronemann S, Meyners T, Schild SE, Hakim SG. Acute toxicity of three versus two courses of cisplatin for radiochemotherapy of locally advanced squamous cell carcinoma of the head and neck (SCCHN): A matched pair analysis. Oral Oncol 2010; 46:549-52. [DOI: 10.1016/j.oraloncology.2010.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Revised: 04/02/2010] [Accepted: 04/07/2010] [Indexed: 10/19/2022]
|
39
|
Current World Literature. Curr Opin Otolaryngol Head Neck Surg 2010; 18:191-4. [DOI: 10.1097/moo.0b013e32833ad4c9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
40
|
|
41
|
Zwicker F, Hauswald H, Nill S, Rhein B, Thieke C, Roeder F, Timke C, Zabel-du Bois A, Debus J, Huber PE. New multileaf collimator with a leaf width of 5 mm improves plan quality compared to 10 mm in step-and-shoot IMRT of HNC using integrated boost procedure. Strahlenther Onkol 2010; 186:334-43. [PMID: 20495969 DOI: 10.1007/s00066-010-2103-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2009] [Accepted: 03/18/2010] [Indexed: 11/27/2022]
Abstract
PURPOSE To investigate whether a new multileaf collimator with a leaf width of 5 mm (MLC-5) over the entire field size of 40 x 40 cm(2) improves plan quality compared to a leaf width of 10 mm (MLC-10) in intensity-modulated radiotherapy (IMRT) with integrated boost for head and neck cancer. PATIENTS AND METHODS A plan comparison was performed for ten patients with head and neck cancer. For each patient, seven plans were calculated: one plan with MLC-10 and nine beams, four plans with MLC-5 and nine beams (with different intensity levels and two-dimensional median filter sizes [2D-MFS]), and one seven-beam plan with MLC-5 and MLC-10, respectively. Isocenter, beam angles and planning constraints were not changed. Mean values of common plan parameters over all ten patients were estimated, and plan groups of MLC-5 and MLC-10 with nine and seven beams were compared. RESULTS The use of MLC-5 led to a significantly higher conformity index and an improvement of the 90% coverage of PTV1 (planning target volume) and PTV2 compared with MLC-10. This was noted in the nine- and seven-beam plans. Within the nine-beam group with MLC-5, a reduction of the segment number by up to 25% at reduced intensity levels and for increased 2D-MFS did not markedly worsen plan quality. Interestingly, a seven-beam IMRT with MLC-5 was inferior to a nine-beam IMRT with MLC-5, but superior to a nine-beam IMRT with MLC-10. CONCLUSION The use of an MLC-5 has significant advantages over an MLC-10 with respect to target coverage and protection of normal tissues in step-and-shoot IMRT of head and neck cancer.
Collapse
Affiliation(s)
- Felix Zwicker
- Department of Radiation Oncology, University of Heidelberg, Germany.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Greve J, Bas M, Schuler P, Turowski B, Scheckenbach K, Budach W, Bölke E, Bergmann C, Lang S, Arweiler-Harbeck D, Lehnerdt G, Mattheis S, Bier H, Hoffmann TK. Acute Arterial Hemorrhage Following Radiotherapy of Oropharyngeal Squamous Cell Carcinoma. Strahlenther Onkol 2010; 186:269-73. [DOI: 10.1007/s00066-010-2114-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2009] [Accepted: 02/16/2010] [Indexed: 01/07/2023]
|
43
|
High-grade acute organ toxicity as positive prognostic factor in primary radio(chemo)therapy for locally advanced, inoperable head and neck cancer. Strahlenther Onkol 2010; 186:262-8. [PMID: 20437012 DOI: 10.1007/s00066-010-2136-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Accepted: 03/05/2010] [Indexed: 12/18/2022]
Abstract
PURPOSE To test for a possible correlation between high-grade acute organ toxicity during primary radio(chemo)therapy and treatment outcome in patients with locally advanced head and neck squamous cell carcinoma (HNSCC). PATIENTS AND METHODS From 05/1994 to 01/2009, 216 HNSCC patients were treated with radio(chemo)therapy in primary approach. They received normofractionated (2 Gy/fraction) irradiation including associated nodal drainage sites to a cumulative dose of 70 Gy. 151 patients received additional concomitant chemotherapy (111 patients 5-fluorouracil/mitomycin C, 40 patients cisplatin-based). Toxicity during treatment was monitored weekly according to the Common Toxicity Criteria (CTC), and any toxicity grade CTC >or= 3 of mucositis, dysphagia or skin reaction was assessed as high-grade acute organ toxicity for later analysis. RESULTS A statistically significant coherency between high-grade acute organ toxicity and overall survival as well as locoregional control was found: patients with CTC >or= 3 acute organ toxicity had a 5-year overall survival rate of 44% compared to 8% in patients without (p < 0.01). Thereby, multivariate analyses revealed that the correlation was independent of other possible prognostic factors or factors that may influence treatment toxicity, especially concomitant chemotherapy and radiotherapy technique or treatment-planning procedure. CONCLUSION These data indicate that normal tissue and tumor tissue may behave similarly with respect to treatment response, as high-grade acute organ toxicity during radio(chemo)therapy showed to be an independent prognostic marker in the own patient population. However, the authors are aware of the fact that a multivariate analysis in a retrospective study generally has statistical limitations. Therefore, their hypothesis should be further analyzed on biomolecular and clinical levels and other tumor entities in prospective trials.
Collapse
|