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Nikkilä R, Haapaniemi A, Carpén T, Pukkala E, Mäkitie A. Laryngeal cancer relative survival trends from 1972 to 2021 in the Nordic countries. Acta Oncol 2024; 63:612-619. [PMID: 39099322 PMCID: PMC11332480 DOI: 10.2340/1651-226x.2024.40823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Accepted: 07/04/2024] [Indexed: 08/06/2024]
Abstract
BACKGROUND AND PURPOSE Changes in treatment approaches, characterised by the shift from laryngectomy to a focus on organ-preserving methods may have potentially resulted in lower survival. We aim to identify differences in survival trends for laryngeal cancer (LC) in the Nordic countries over a period of 50 years, and discuss the potential impact of factors such as changes in treatment protocols. MATERIALS AND METHODS Five-year relative survival (RS) data from 1972 to 2021 were obtained from the NORDCAN database 2.0 which included 33,692 LC cases, of which 85% were diagnosed among men. In the NORDCAN database, the age-standardised RS is calculated using the Pohar Perme estimator with individual International Cancer Survival Standards weights. Joinpoint regression models were used to assess potential shifts in trend over the years in RS. RESULTS While Denmark and Norway demonstrated an increasing trend in 5-year RS from 1972 to 2021, in Finland and Sweden, the 5-year RS among men remained static, without any discernible significant trend. Over the 30-year period from 1992-1996 to 2017-2021, RS improved by 9, 4, 13, and 2 percentage points in Denmark, Finland, Norway, and Sweden, respectively. Among women in Sweden, a linear negative trend was observed, noticeable as a 16 percentage-point decline in 5-year RS from the earliest to the latest period. INTERPRETATION The underlying causes for the differences in survival trends remain unclear. Besides differences in treatment protocols, several other factors can affect RS making the interpretation of RS trends challenging.
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Affiliation(s)
- Rayan Nikkilä
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and HUS Helsinki University Hospital, Helsinki, Finland; Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer and Research, Helsinki, Finland; Department of Oral and Maxillofacial Surgery, Lahti Central Hospital, Päijät-Häme Joint Authority for Health and Wellbeing, Lahti, Finland
| | - Aaro Haapaniemi
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and HUS Helsinki University Hospital, Helsinki, Finland
| | - Timo Carpén
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Palliative Care Unit, Comprehensive Cancer Center, University of Helsinki and HUS Helsinki University Hospital, Helsinki, Finland
| | - Eero Pukkala
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer and Research, Helsinki, Finland; Health Sciences Unit, Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Antti Mäkitie
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and HUS Helsinki University Hospital, Helsinki, Finland; Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Division of Ear, Nose and Throat Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet and Karolinska Hospital, Stockholm, Sweden.
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Giotakis AI, Lazaris AC, Kataki A, Kontos CK, Giotakis EI. Positive BCL2L12 expression predicts favorable prognosis in patients with laryngeal squamous cell carcinoma. Cancer Biomark 2019; 25:141-149. [PMID: 31104007 DOI: 10.3233/cbm-181772] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Laryngeal squamous cell carcinoma (LSCC) constitutes the third most frequent head and neck cancer. Several tissue biomarkers have been studied for their prognostic significance in LSCC. OBJECTIVE To investigate the prognostic significance of BCL2L12, a new member of the BCL2 family, in primary LSCC along with well-examined biomarkers such as BCL2 and BAX. METHODS Cancerous tissue specimens of patients with primary LSCC were collected during 2005 and 2012 as pretreatment tissue biopsy. The specimens were immunohistochemically evaluated for the protein expression of BCL2L12, BCL2 and BAX. Kaplan-Meier survival curves and Cox proportional hazard regression models were performed to evaluate prognosis. RESULTS In the study cohort of 78 patients with primary LSCC, Kaplan-Meier survival curves demonstrated that advanced-stage LSCC patients with BCL2L12-positive tumors had significantly higher OS time in comparison with advanced-stage LSCC patients with BCL2L12-negative tumors (p= 0.014). Also, advanced-stage LSCC patients with BCL2L12-positive tumors had significantly lower risk of death from LSCC compared to advanced-stage LSCC patients with BCL2L12-negative tumors (HR = 0.228, 95%CI = 0.063-0.833, p= 0.025). CONCLUSIONS BCL2L12 protein expression could be used as a favorable prognostic tissue biomarker in patients with primary advanced-stage LSCC. On the contrary, BCL2 and BAX did not correlate with prognosis in patients with primary LSCC.
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Affiliation(s)
- Aris I Giotakis
- First Department of Otorhinolaryngology, Hippocration Hospital, Medical University of Athens, National and Kapodistrian University of Athens, Athens, Greece
| | - Andreas C Lazaris
- Department of Pathology, Medical University of Athens, National and Kapodistrian University of Athens, Athens, Greece
| | - Agapi Kataki
- Laboratory of Surgical Research, 1st Department of Propaedeutic Surgery, Hippocration Hospital, Medical University of Athens, National and Kapodistrian University of Athens, Athens, Greece
| | - Christos K Kontos
- Department of Biochemistry and Molecular Biology, University of Athens, Athens, Greece
| | - Evangelos I Giotakis
- First Department of Otorhinolaryngology, Hippocration Hospital, Medical University of Athens, National and Kapodistrian University of Athens, Athens, Greece
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Van Daele DJ, Langmore SE, Krisciunas GP, Lazarus CL, Pauloski BR, McCulloch TM, Gramigna GD, Messing BP, Wagner CW, Mott SL. The impact of time after radiation treatment on dysphagia in patients with head and neck cancer enrolled in a swallowing therapy program. Head Neck 2019; 41:606-614. [PMID: 30629306 DOI: 10.1002/hed.25344] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 12/02/2017] [Accepted: 05/07/2018] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Swallowing dysfunction after radiotherapy (RT) for head and neck cancer can be devastating. A randomized control trial compared swallow exercises versus exercise plus neuromuscular electrical stimulation therapy and found no overall difference in outcomes. METHODS Quality of life (QOL), diet, and swallowing variables collected at discrete intervals on 117 patients were reanalyzed to test the hypothesis that shorter time between the completion of radiotherapy and beginning of the swallowing therapy program yielded improved outcomes. RESULTS At baseline, subjects < 1 year post radiation had significantly better function than subjects >2 years post RT in several measures. Over the therapy program, the early group showed significant improvement in diet and QOL. Swallowing physiologic variables showed no difference between groups. CONCLUSION Beginning a swallowing therapy program within 1 year of completion of radiotherapy demonstrates more consistent improvement in QOL and diet performance compared to later periods.
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Affiliation(s)
| | | | | | - Cathy L Lazarus
- Associate Professor - Otolaryngology, Mount Sinai Health System
| | - Barbara R Pauloski
- Associate Professor - Communication Sciences and Disorders, University of Wisconsin Milwaukee
| | | | | | | | | | - Sarah L Mott
- Statistician - Holden Comprehensive Cancer Center, University of Iowa
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MacNeil SD, Patel K, Liu K, Shariff S, Yoo J, Nichols A, Fung K, Garg AX. Survival of patients with subglottic squamous cell carcinoma. ACTA ACUST UNITED AC 2018; 25:e569-e575. [PMID: 30607125 DOI: 10.3747/co.25.3864] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective Subglottic squamous cell carcinoma is a rare subsite of laryngeal cancer that behaves more aggressively and portends a worse prognosis. Using a population-based cancer registry, our objective was to report overall survival (os) and laryngectomy-free survival (lfs) in patients diagnosed with subglottic squamous cell carcinoma, and to determine whether primary laryngectomy results in improved survival. Methods This retrospective population-based study considered patients with a new diagnosis of squamous cell carcinoma in the province of Ontario over a 15-year period (1995-2009). The Ontario Cancer Registry was examined for patients with the diagnosis of interest during the period of interest. Linked population-based databases were used to obtain patient demographics, comorbidity measures, staging, survival, and primary treatment with laryngectomy. Results Of 4927 patients identified to have laryngeal carcinoma, 89 were defined as having primary subglottic carcinoma (1.8%). In the subglottic cohort, 68 patients were men (76.4%), and mean age at diagnosis was 68 years (interquartile range: 60-77 years). The 5-year os was 47.2%, and the 5-year lfs was 31.5%. In 13 patients (15%), the primary treatment was laryngectomy, which, compared with primary radiation, did not predict for improved os. No differences in os or lfs were observed during the 15-year study period (os p = 0.42, lfs p = 0.83). Conclusions The survival of patients with subglottic carcinoma is poor and has remained stable over time (1995-2009). Compared with primary radiation, primary treatment with laryngectomy does not appear to improve os.
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Affiliation(s)
- S D MacNeil
- Department of Otolaryngology-Head and Neck Surgery, Western University, London, ON.,Institute for Clinical Evaluative Sciences, Toronto, ON
| | - K Patel
- Department of Otolaryngology-Head and Neck Surgery, Western University, London, ON
| | - K Liu
- Institute for Clinical Evaluative Sciences, Toronto, ON
| | - S Shariff
- Institute for Clinical Evaluative Sciences, Toronto, ON
| | - J Yoo
- Department of Otolaryngology-Head and Neck Surgery, Western University, London, ON
| | - A Nichols
- Department of Otolaryngology-Head and Neck Surgery, Western University, London, ON
| | - K Fung
- Department of Otolaryngology-Head and Neck Surgery, Western University, London, ON
| | - A X Garg
- Institute for Clinical Evaluative Sciences, Toronto, ON.,Department of Epidemiology and Biostatistics, Western University, London, ON.,Division of Nephrology, Department of Medicine, Western University, London, ON
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Tang D, Tao L, Zhou L, Zhang M, Wu H, Li X, Chen X, Li C, Xie M, Cheng L. Retrospective analysis of 659 laryngeal squamous cell carcinoma patients treated with open laryngeal function-preserving operations. Acta Otolaryngol 2018; 138:1043-1050. [PMID: 30776268 DOI: 10.1080/00016489.2018.1500711] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Open laryngeal function-preserving surgery is a common therapeutic strategy for Chinese laryngeal squamous cell carcinoma (LSCC) patients. OBJECTIVES To explore the fundamental clinical characteristics and survival prognostic factors of LSCC patients treated with open laryngeal function-preserving operations. MATERIAL AND METHODS about a total of 659 LSCC patients undergoing open laryngeal function-preserving operations were retrospectively reviewed. Kaplan-Meier method, Log-rank test and Cox regression model were performed in survival analyses. RESULTS About 612 patients were glottic cancer, followed by 44 cases in supraglottis and 3 cases in subglottis. The number of patients in stage T1, T2, T3 and T4 was 190, 365, 100 and 4, respectively. Nineteen patients had positive cervical lymph nodes. The 5-year overall survival, disease-free survival and disease-specific survival rates were 90.1, 84.9 and 90.7%, respectively. T stage and second primary tumour were independent factors predicting overall survival, while T stage and pathological differentiation were independent risk factors for tumour recurrence and progression. CONCLUSIONS AND SIGNIFICANCE Open laryngeal function-preserving surgery is a crucial therapeutic strategy for Chinese patients with early and, in some cases, advanced-stage LSCC. Early diagnosis and therapy and sufficient and safe surgical margins are key to improving the survival rate and reducing the risk of relapse in LSCC patients.
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Affiliation(s)
| | - Lei Tao
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Liang Zhou
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Ming Zhang
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Haitao Wu
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Xiaoming Li
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Xiaoling Chen
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Cai Li
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Ming Xie
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Lei Cheng
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
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Zhang Y, Wang Z, Bai X, Xu Y. AGP1 acts as a biomarker for diagnosis of laryngeal cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:4996-5001. [PMID: 31949576 PMCID: PMC6962926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 06/30/2017] [Indexed: 06/10/2023]
Abstract
BACKGROUND Laryngeal cancer is a common malignancy of head and neck cancer, with increasing morbidity and mortality in our country. It is reported that AGP1 can act as a serum marker for several diseases and cancers. In this study, we evaluated the diagnostic value of AGP1 in laryngeal cancer. METHODS The serum AGP1 levels of 119 laryngeal carcinoma patients and 68 healthy volunteers were detected by real-time PCR (qRT-PCR) and ELISA. Chi-square test was applied to evaluate the association between AGP1 mRNA levels and clinical characteristics. To determine the diagnostic value of AGP1, ROC curve was constructed. RESULTS The expression level of AGP1 was higher in laryngeal cancer patients than that in healthy group (P<0.001). Moreover, its mRNA level was significantly associated with tumor size (P=0.004), TNM stage (P=0.006), and distant metastasis (P=0.018). ROC curve demonstrated that AGP1 could be used for laryngeal cancer diagnosis with AUC value of 0.924, combing with the sensitivity of 78.8% and specificity of 89.7%. The optimal cutoff value was 0.725. CONCLUSION AGP1 is up-regulated and correlated with tumor progression in laryngeal cancer patients. AGP1 may be a potential diagnostic biomarker for laryngeal cancer.
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Affiliation(s)
- Yi Zhang
- Department of Otorhinolaryngological, Harrison International Peace Hospital Hengshui 053000, China
| | - Zhiping Wang
- Department of Otorhinolaryngological, Harrison International Peace Hospital Hengshui 053000, China
| | - Xiuqing Bai
- Department of Otorhinolaryngological, Harrison International Peace Hospital Hengshui 053000, China
| | - Yaosheng Xu
- Department of Otorhinolaryngological, Harrison International Peace Hospital Hengshui 053000, China
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Hall SF, Griffiths RJ. Evaluation of treatment outcomes in patients with supraglottic laryngeal cancer in Ontario, Canada: A population-based study. Head Neck 2018; 40:1024-1033. [DOI: 10.1002/hed.25073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 04/13/2017] [Accepted: 12/06/2017] [Indexed: 11/08/2022] Open
Affiliation(s)
- Stephen F. Hall
- Departments of Otolaryngology and Oncology; Queen's University; Kingston Ontario Canada
- Institute of Clinical Evaluative Sciences Queens; Queen's University; Kingston Ontario Canada
| | - Rebecca J. Griffiths
- Institute of Clinical Evaluative Sciences Queens; Queen's University; Kingston Ontario Canada
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Predictive and prognostic factors for patients with locoregionally advanced laryngeal carcinoma treated with surgical multimodality protocol. Eur Arch Otorhinolaryngol 2016; 274:1701-1711. [DOI: 10.1007/s00405-016-4411-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 11/26/2016] [Indexed: 01/11/2023]
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9
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Low THH, Yeh D, Zhang T, Araslanova R, Hammond JA, Palma D, Read N, Venkatesan V, MacNeil SD, Yoo J, Nichols A, Fung K. Evaluating organ preservation outcome as treatment endpoint for T1aN0 glottic cancer. Laryngoscope 2016; 127:1322-1327. [DOI: 10.1002/lary.26317] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 07/31/2016] [Accepted: 08/15/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Tsu-Hui Hubert Low
- Department of Head and Neck Surgery; Chris O'Brien Lifehouse/Royal Prince Alfred Hospital; Camperdown New South Wales Australia
- Central Clinical School; University of Sydney; Camperdown New South Wales Australia
| | - David Yeh
- Department of Otolaryngology, Head and Neck Surgery; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - Tina Zhang
- Division of Radiation Oncology; Department of Oncology; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - Rakhna Araslanova
- Department of Otolaryngology, Head and Neck Surgery; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - J. Alex Hammond
- Division of Radiation Oncology; Department of Oncology; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - David Palma
- Division of Radiation Oncology; Department of Oncology; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - Nancy Read
- Division of Radiation Oncology; Department of Oncology; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - Varagur Venkatesan
- Division of Radiation Oncology; Department of Oncology; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - S. Danielle MacNeil
- Department of Otolaryngology, Head and Neck Surgery; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - John Yoo
- Department of Otolaryngology, Head and Neck Surgery; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - Anthony Nichols
- Department of Otolaryngology, Head and Neck Surgery; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - Kevin Fung
- Department of Otolaryngology, Head and Neck Surgery; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
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Lyhne NM, Johansen J, Kristensen CA, Andersen E, Primdahl H, Andersen LJ, Oksbjerg S, Overgaard J. Incidence of and survival after glottic squamous cell carcinoma in Denmark from 1971 to 2011-A report from the Danish Head and Neck Cancer Group. Eur J Cancer 2016; 59:46-56. [PMID: 27014799 DOI: 10.1016/j.ejca.2016.01.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 01/19/2016] [Accepted: 01/31/2016] [Indexed: 01/22/2023]
Abstract
AIM To describe the incidence, disease-specific mortality (DSM), and overall survival (OS) of patients with glottic squamous cell carcinomas (SCC) in Denmark from 1971-2011 in a national population-based cohort of consecutive patients. MATERIALS AND METHODS All patients diagnosed with glottic SCC stage I-IV between 1971 and 2011 in Denmark were included. Patients were identified from the Danish Head and Neck Cancer database, which has a coverage of approximately 100% of registered glottic cancer in Denmark. Information on vital status and cause of death were updated using patient charts and national registries. RESULTS In total 5132 patients with glottic SCC were included. The yearly number of new cases increased from 107 in the 1970s to 139 in the 2000s. Overall, the incidence increased from 1.9 to 2.6 per 100,000, with a more prominent increase in men (3.5 to 4.7) compared with women (0.4 to 0.6). The 5-year DSM was 16% (15-17%) and the 5-year OS was 63% (61-64). The hazard rate of DSM adjusted for patient characteristics, tumour characteristics and waiting-time was significantly lower in the 2000s (p < 0.01), and the hazard rate of OS was significantly higher (p < 0.01) compared to the earlier decades. Longer waiting-time for treatment (>25 d) significantly increased DSM and reduced OS. CONCLUSION Despite being highly avoidable with smoking cessation, the incidence of glottic SCC increased in Denmark from 1971-2011. The adjusted hazard rate of DSM and overall death after glottic SCC was significantly lower in the 2000s compared to previous decades. Waiting-time for treatment significantly influenced DSM and OS.
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Affiliation(s)
- Nina Munk Lyhne
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Denmark.
| | - Jørgen Johansen
- Department of Oncology, Odense University Hospital, Odense, Denmark
| | | | - Elo Andersen
- Department of Oncology, Herlev Hospital, Copenhagen, Denmark
| | - Hanne Primdahl
- Department of Oncology, Aarhus University Hospital, Odense, Denmark
| | | | | | - Jens Overgaard
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Denmark
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Onerci Celebi O, Tezel GG, Hosal AS, Cengiz M, Gullu IH, Hayran M. Detection of O6-methylguanine-DNA methyltransferase gene promoter region methylation pattern using pyrosequencing and the effect of methylation pattern on survival, recurrence, and chemotherapy sensitivity in patients with laryngeal cancer. Pathol Res Pract 2016; 212:456-62. [PMID: 27067808 DOI: 10.1016/j.prp.2016.02.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 02/09/2016] [Accepted: 02/24/2016] [Indexed: 10/22/2022]
Abstract
AIM To determine the methylation pattern of the promoter region of the O6-methylguanine-DNA methyltransferase (MGMT) gene in laryngeal cancer and normal laryngeal mucosa samples using pyrosequencing, and to determine the relationship between the methylation pattern of MGMT, and tumor stage, survival, recurrence, and chemosensitivity in patients with laryngeal cancer. MATERIALS AND METHODS Laryngeal cancer and normal laryngeal mucosa specimens were obtained from our paraffin block archives, and then subjected to pyrosequencing. Different cut-off values were used to detect methylation. Clinicopathological data for the patients that provided specimens were obtained from archive records. RESULTS When 5% was used as the cut-off value, 78% of the laryngeal cancer specimens (64 of 82), and 27.3% of normal laryngeal mucosa specimens (3 of 11) were considered methylated. When 10% was used as the cut-off value, 47% of the laryngeal cancer specimens (39 of 82), and none of the normal laryngeal mucosa specimens were considered methylated. There was not a significant relationship between the methylation status of MGMT, and clinicopathological parameters, including age, tumor stage, histopathological differentiation, chemoradiotherapy protocol used, recurrence, or disease-free survival. CONCLUSION Pyrosequencing is a reliable semiquantitative technique that can be used to detect the methylation pattern. Methylation was common in the laryngeal cancer specimens, but there was not a significant relationship between the methylation status of MGMT and clinicopathological parameters.
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Affiliation(s)
- Ozlem Onerci Celebi
- Department of Otorhinolaryngology, Hacettepe University, Sihhiye 06100, Ankara, Turkey.
| | - Gaye Guler Tezel
- Department of Pathology, Hacettepe University, Sihhiye 06100, Ankara, Turkey
| | - Ali Sefik Hosal
- Department of Otorhinolaryngology, Hacettepe University, Sihhiye 06100, Ankara, Turkey
| | - Mustafa Cengiz
- Department of Radiation Oncology, Hacettepe University, Sihhiye 06100, Ankara, Turkey
| | - Ibrahim Halil Gullu
- Department of Medical Oncology, Hacettepe University, Sihhiye 06100, Ankara, Turkey
| | - Mutlu Hayran
- Department of Preventive Oncology, Hacettepe University Cancer Institute, Sihhiye 06100, Ankara, Turkey
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Pattern of failure in 5001 patients treated for glottic squamous cell carcinoma with curative intent - A population based study from the DAHANCA group. Radiother Oncol 2016; 118:257-66. [PMID: 26897514 DOI: 10.1016/j.radonc.2016.02.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 01/25/2016] [Accepted: 02/04/2016] [Indexed: 11/21/2022]
Abstract
PURPOSE To describe the pattern of failure in a national consecutive cohort of patients with glottic squamous cell carcinomas (SCC) treated with primary radiotherapy (RT) with curative intent over a 41-year period. MATERIALS AND METHODS All patients undergoing curative treatment for a glottic SCC diagnosed in Denmark between 1971 and 2011 were included and followed from the first contact with the oncology center to death or February 15, 2015. RESULTS 5001 patients were identified of whom 98% had primary RT. The median follow-up was 9.1 years/5.7 years (patients alive/patients who died). Ten patients were lost to follow-up. In total 1511 failures were observed; of these 93%, 11% and 5% included T site, N site, and M site, respectively. For patients diagnosed in the 70s and the 00s, respectively, the five-year incidences were: local failure (32% vs 19%), loco-regional failure (34% vs 21%), laryngectomy (26% vs 10%), laryngectomy-free survival (48% vs 62%), disease-free survival (62% vs 68%), and overall survival (62% vs 68%). The five-year incidence of ultimate failure (13-16%) remained statistically unchanged. CONCLUSION From the 70s to the 00s a continually improving primary disease-control was observed with a concurrent decrease in the incidence of laryngectomy. The survival rate was significantly higher in the 00s compared to the previous three decades.
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