Adjuvant Second-Dose Chemotherapy before Surgery for Patients with Locally Advanced Rectal Malignancy Is Not Beneficial: A Systematic Review and Meta-Analysis

المؤلفون المشاركون

Chen, Min
Song, Xue
Chen, Liang-zhou
Xu, Lin
Lu, Yi-pu
Zhang, Jin-song

المصدر

Gastroenterology Research and Practice

العدد

المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-8، 8ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2017-08-01

دولة النشر

مصر

عدد الصفحات

8

التخصصات الرئيسية

الأمراض

الملخص EN

Background.

Preoperative chemoradiotherapy is the standard treatment for patients with locally advanced rectal cancer, although tumor responses vary widely; some patients may achieve a pathologic complete response rate (pCR) after chemoradiotherapy.

Controversy exists with regard to the efficacy of different preoperative combination chemotherapy regimens and neoadjuvant chemoradiotherapy, compared with chemoradiotherapy alone.

Methods.

PubMed, the Cochrane Library, and Embase databases were searched for comparative studies of patients with locally advanced rectal cancer that were published between January 1991 and January 2016.

Efficacies of different preoperative combination chemotherapy regimens and neoadjuvant chemoradiotherapy (group A) were compared with chemoradiotherapy alone (group B) in a meta-analysis using Review Manager v5.2.

Results.

Three prospective randomized controlled trials and two prospective nonrandomized controlled trials comprising 444 cases were eligible for analysis.

No significant difference was detected in the rate of pCR (50/223, 22.4% versus 35/223, 15.7%; relative risk, RR: 1.42 [95% confidence interval, CI: 0.97–2.09], p=0.07) between the two groups.

The rate of tumor regression was similar for both groups (122/203, 60.1% versus 111/203, 54.7%; RR: 1.11 [95% CI: 0.94–1.29], p=0.22).

Conclusions.

Adjuvant chemotherapy with preoperative chemoradiotherapy did not significantly improve the rate of pCR nor the rate of T and N downstaging.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Chen, Min& Song, Xue& Chen, Liang-zhou& Xu, Lin& Lu, Yi-pu& Zhang, Jin-song. 2017. Adjuvant Second-Dose Chemotherapy before Surgery for Patients with Locally Advanced Rectal Malignancy Is Not Beneficial: A Systematic Review and Meta-Analysis. Gastroenterology Research and Practice،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1156132

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Chen, Min…[et al.]. Adjuvant Second-Dose Chemotherapy before Surgery for Patients with Locally Advanced Rectal Malignancy Is Not Beneficial: A Systematic Review and Meta-Analysis. Gastroenterology Research and Practice No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1156132

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Chen, Min& Song, Xue& Chen, Liang-zhou& Xu, Lin& Lu, Yi-pu& Zhang, Jin-song. Adjuvant Second-Dose Chemotherapy before Surgery for Patients with Locally Advanced Rectal Malignancy Is Not Beneficial: A Systematic Review and Meta-Analysis. Gastroenterology Research and Practice. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1156132

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1156132