Brazilian journal of otorhinolaryngology · 2018
The role of red cell distribution width in the locoregional recurrence of laryngeal cancer.
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Bozkurt Gülpembe, Korkut Arzu Yasemin, Soytaş Pınar, Dizdar Senem Kurt, Erol Zeynep Nur
Аннотация
INTRODUCTION: Although the red cell distribution width has been reported as a reliable predictor of prognosis in several types of cancer, to our knowledge few reports have focused on the prognostic value of red cell distribution width in laryngeal carcinoma.
OBJECTIVE: We aimed to explore whether the pretreatment red cell distribution width predicted recurrence in laryngeal cancer patients is a simple, reproducible, and inexpensive prognostic biomarker.
METHODS: All laryngeal cancer patients who underwent curative surgery (n=132) over a 7 year study period were evaluated. Data on demographics, primary tumor site, T-stage, N-stage, histological features (differentiation; the presence of perineural/perivascular invasion), treatment group (total laryngectomy or partial laryngectomy) or adjuvant therapy (chemotherapy/radiotherapy); laboratory parameters (complete blood count, including the pre-operative red cell distribution width), and disease-free survival rates were retrospectively reviewed. All cases were divided into three groups by the red cell distribution width tertile [<13% (25th percentile) (n=31), 13-14.4% (50th percentile) (n=72), and >14.4% (75th percentile) (n=29)].
RESULTS: High-red cell distribution width group included more patients of advanced age, and more of those with recurrent and metastatic tumors (p=0.005, 0.048, and 0.043, respectively). Individuals with red cell distribution width >14.4% (75th percentile) had lower disease free survival rates than did those with red cell distribution width <13% (25th percentile) (p=0.014). Patients with red cell distribution width >14.4% at diagnosis were at a higher risk of locoregional recurrence (hazard ratio=5.818, 95% confidence interval (95% CI) 1.25-26.97; p=0.024) than patients with a normal red cell distribution width (<13%).
CONCLUSION: We found that the pretreatment red cell distribution width was independently prognostic of disease free survival rate in patients with laryngeal cancer and may serve as a new, accurate, and reproducible means of identifying early-stage laryngeal cancer patients with poorer prognoses.
OBJECTIVE: We aimed to explore whether the pretreatment red cell distribution width predicted recurrence in laryngeal cancer patients is a simple, reproducible, and inexpensive prognostic biomarker.
METHODS: All laryngeal cancer patients who underwent curative surgery (n=132) over a 7 year study period were evaluated. Data on demographics, primary tumor site, T-stage, N-stage, histological features (differentiation; the presence of perineural/perivascular invasion), treatment group (total laryngectomy or partial laryngectomy) or adjuvant therapy (chemotherapy/radiotherapy); laboratory parameters (complete blood count, including the pre-operative red cell distribution width), and disease-free survival rates were retrospectively reviewed. All cases were divided into three groups by the red cell distribution width tertile [<13% (25th percentile) (n=31), 13-14.4% (50th percentile) (n=72), and >14.4% (75th percentile) (n=29)].
RESULTS: High-red cell distribution width group included more patients of advanced age, and more of those with recurrent and metastatic tumors (p=0.005, 0.048, and 0.043, respectively). Individuals with red cell distribution width >14.4% (75th percentile) had lower disease free survival rates than did those with red cell distribution width <13% (25th percentile) (p=0.014). Patients with red cell distribution width >14.4% at diagnosis were at a higher risk of locoregional recurrence (hazard ratio=5.818, 95% confidence interval (95% CI) 1.25-26.97; p=0.024) than patients with a normal red cell distribution width (<13%).
CONCLUSION: We found that the pretreatment red cell distribution width was independently prognostic of disease free survival rate in patients with laryngeal cancer and may serve as a new, accurate, and reproducible means of identifying early-stage laryngeal cancer patients with poorer prognoses.