The prognostic value of tumor length to resectable esophageal squamous cell carcinoma: a retrospective study

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Zhang, Xiangwei (author)

The prognostic value of tumor length to resectable esophageal squamous cell carcinoma : a retrospective study

Article/chapterEnglish2017

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2017-01-31
PeerJ,2017
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LIBRIS-ID:oai:DiVA.org:umu-133211
https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-133211URI
https://doi.org/10.7717/peerj.2943DOI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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Background: The current TNM classification system does not consider tumor length for patients with esophageal carcinoma (EC). This study explored the effect of tumor length, in addition to tumor depth and lymph node involvement, on survival in patients with esophageal squamous cell carcinoma (ESCC).Methods: A total of 498 ESCC patients who underwent surgical resection as the primary treatment were selected in the retrospective study. Pathological details were collected, which included tumor type, TNM stage, differentiation. Other collected information were: the types of esophageal resection, ABO blood group, family history and demographic and lifestyle factors. A time-dependent receiver operating characteristic (ROC) curve and a regression tree for survival were used to identify the cut-off point of tumor length, which was 3 cm. Univariate and multivariate Cox proportional hazard regression models were used to identify the prognostic factors to ESCC.Results & Discussion: The 1-, 3-, 5-year overall survival rates were found to be 82.5%, 55.6%, and 35.1%, respectively. Patients who had larger tumor length (>3 cm) had a higher risk for death than the rest patients. From the univariate Cox proportional hazards regression model, the overall survival rate was significantly influenced by the depth of the tumor and lymph node involvement (either as dummy or continuous variables), Sex, and tumor length. Using these four variables in the multivariate Cox proportional hazard regression model, we found that the overall survival was significantly influenced by all variables except Sex. Therefore, in addition to the depth of the tumor and lymph node involvement (as either dummy or continuous variables), the tumor length is also an independent prognostic factor for ESCC. The overall survival rate was higher in a group with smaller tumor length (≤3 cm) than those patients with larger tumor length (>3 cm), no matter what the tumor stage was.Conclusion: The tumor length was found to be an important prognostic factor for ESCC patients without receiving neoadjuvant therapy. The modification of EC staging system may consider tumor length to better predict ESCC survival and identify higher risk patients for postoperative therapy.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Cancer och onkologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Cancer and Oncology hsv//eng
Esophageal squamous cell carcinoma
Prognostic factor
Long-term survival

Added entries (persons, corporate bodies, meetings, titles ...)

Wang, Yang (author)
Li, Cheng (author)
Helmersson, JingUmeå universitet,Epidemiologi och global hälsa(Swepub:umu)jihe0008 (author)
Jiang, Yuanzhu (author)
Ma, Guoyuan (author)
Wang, Guanghui (author)
Dong, Wei (author)
Sang, Shaowei (author)
Du, Jiajun (author)
Umeå universitetEpidemiologi och global hälsa (creator_code:org_t)

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By the author/editor: Zhang, Xiangwei; Wang, Yang; Li, Cheng; Helmersson, Jing; Jiang, Yuanzhu; Ma, Guoyuan; show more...; Wang, Guanghui; Dong, Wei; Sang, Shaowei; Du, Jiajun; show less...

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MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Cancer and Oncol ...

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By the university: Umeå University

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