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

2016; Dove Medical Press; Volume: Volume 11; Linguagem: Inglês

10.2147/cia.s107881

1178-1998

Mutahir A. Tunio, Khalid Al‐Qahtani, Mushabbab Al Asiri, Yasser Bayoumi, Ali Abdullah O Balbaid, Naji J. Aljohani, Hanadi Fatani,

Thyroid Disorders and Treatments

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