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Comparative clinicopathological and outcome analysis of differentiated thyroid cancer in Saudi patients aged below 60 years and above 60 years

Authors AL-Qahtani KH, Tunio M, Al Asiri M, Bayoumi Y, Balbaid AA, Aljohani NJ, Fatani H

Received 6 March 2016

Accepted for publication 15 April 2016

Published 29 August 2016 Volume 2016:11 Pages 1169—1174


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Richard Walker

Khalid Hussain AL-Qahtani,1 Mutahir A Tunio,2 Mushabbab Al Asiri,2 Yasser Bayoumi,3 Ali Balbaid,2 Naji J Aljohani,4 Hanadi Fatani5

1Department of Otolaryngology-Head & Neck Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia; 2Department of Radiation Oncology, Comprehensive Cancer Center, King Fahad Medical City, Riyadh, Saudi Arabia; 3Department of Radiation Oncology, NCI, Cairo University, Cairo, Egypt; 4Department of Endocrinology and Thyroid Oncology, 5Histopathology, Comprehensive Cancer Center, King Fahad Medical City, Riyadh, Saudi Arabia

Introduction: The aim of this study was to evaluate the treatment outcomes of differentiated thyroid cancer in Saudi patients aged above 60 years.
Materials and methods: Comparative analysis was performed in 252 patients aged 46–60 years (Group A) and 118 patients aged above 60 years (Group B), who had thyroidectomy, radioactive iodine-131, and thyroid-stimulating hormone suppression therapy between July 2000 and December 2012. Different clinicopathological features, treatment, complications, disease-free survival, and overall survival rates were compared.
Results: Mean age of patients in Group A was 51.9 years (range: 46–60), and mean age of those in Group B was 68.6 years (range: 62–97). Group B patients had higher positive lymph nodes (43.2%), P=0.011. The frequency of extrathyroidal extension, multifocality, and lymphovascular space invasion was seen more in Group B than in Group A. Postsurgical complications (permanent hypoparathyroidism, bleeding, and wound infections) were also seen more in Group B (P=0.043, P=0.011, and P=0.021, respectively). Group B patients experienced more locoregional recurrences (11.0%, P=0.025); similarly, more distant metastases were observed in Group B (15.3%, P=0.003). The 10-year disease-free survival rates were 87.6% in Group A and 70.8% in Group B (P<0.0001).
Conclusion: Differentiated thyroid cancer in patients aged above 60 years are more aggressive biologically and associated with a worse prognosis, and the morbidity is significantly high as compared to patients aged below 60 years.

differentiated thyroid cancers, patients aged above 45 years, aged above 60 years, clinicopathological characteristics, treatment outcomes, elderly patients, aged below 60 years, comparative analysis

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