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http://dx.doi.org/10.3857/roj.2012.30.3.117

Negative impact of pretreatment anemia on local control after neoadjuvant chemoradiotherapy and surgery for rectal cancer  

Lee, Hyebin (Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Park, Hee Chul (Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Park, Won (Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Choi, Doo Ho (Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Kim, Young-Il (Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Park, Young Suk (Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Park, Joon Oh (Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Chun, Ho-Kyung (Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Lee, Woo-Yong (Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Kim, Hee Cheol (Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Yun, Seong Hyeon (Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Cho, Yong Beom (Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Park, Yoon Ah (Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Publication Information
Radiation Oncology Journal / v.30, no.3, 2012 , pp. 117-123 More about this Journal
Abstract
Purpose: Although anemia is considered to be a contributor to intra-tumoral hypoxia and tumor resistance to ionizing radiation in cancer patients, the impact of pretreatment anemia on local control after neoadjuvant concurrent chemoradiotherapy (NACRT) and surgery for rectal cancer remains unclear. Materials and Methods: We reviewed the records of 247 patients with locally advanced rectal cancer who were treated with NACRT followed by curative-intent surgery. Results: The patients with anemia before NACRT (36.0%, 89/247) achieved less pathologic complete response (pCR) than those without anemia (p = 0.012). The patients with pretreatment anemia had worse 3-year local control than those without pretreatment anemia (86.0% vs. 95.7%, p = 0.005). Multivariate analysis showed that pretreatment anemia (p = 0.035), pathologic tumor and nodal stage (p = 0.020 and 0.032, respectively) were independently significant factors for local control. Conclusion: Pretreatment anemia had negative impacts on pCR and local control among patients who underwent NACRT and surgery for rectal cancer. Strategies maintaining hemoglobin level within normal range could potentially be used to improve local control in rectal cancer patients.
Keywords
Anemia; Rectal cancer; Neoadjuvant therapy; Concurrent chemoradiotherapy;
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