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Can lobe-specific lymph node dissection be an alternative to systematic lymph node dissection in treating early-stage non-small cell lung cancer: a comprehensive systematic review and meta-analysis?

  
@article{JTD21443,
	author = {Han-Yu Deng and Chang-Long Qin and Gang Li and Guha Alai and Yidan Lin and Xiao-Ming Qiu and Qinghua Zhou},
	title = {Can lobe-specific lymph node dissection be an alternative to systematic lymph node dissection in treating early-stage non-small cell lung cancer: a comprehensive systematic review and meta-analysis?},
	journal = {Journal of Thoracic Disease},
	volume = {10},
	number = {5},
	year = {2018},
	keywords = {},
	abstract = {Background: Whether lobe-specific lymph node dissection (L-SLND) could serve as an alternative to systematic lymph node dissection (SLND) in treating early-stage non-small cell lung cancer (NSCLC) remains unclear. Therefore, we conducted this comprehensive meta-analysis to compare the effect of L-SLND with that of SLND in treating early-stage NSCLC.
Methods: A systematic literature search in PubMed and Embase was conducted to identify relevant studies up to 30 November 2017. Data including 5-year overall survival (OS) and disease-free survival (DFS) rates, recurrence rates, and morbidity rate were extracted and analysed.
Results: A total of six studies [one randomized controlled trial (RCT) and five retrospective cohort studies] consisting of 2,037 patients with early-stage NSCLC were included for analysis. Meta-analysis showed that there was no significant difference of 5-year OS [81.7% and 79.5%, respectively; risk ratio (RR) =1.021; 95%confidence interval (CI), 0.977–1.068; P=0.352] and DFS (76.4% and 69.9%, respectively; RR =1.061; 95%CI, 0.999–1.128; P=0.054) between patients treated with L-SLND and those with SLND. Moreover, there was also no significant difference of total recurrence rates (24.3% and 25.8%, respectively; RR =0.892; 95%CI, 0.759–1.048; P=0.166) and loco-regional recurrence rates (7.9% and 9.3%, respectively; RR =0.851; 95%CI, 0.623–1.162; P=0.310) between patients treated with L-SLND and those with SLND. However, patients treated with L-SLND yielded a significant lower morbidity rate than those treated with SLND (10.2% and 13.5%, respectively; RR =0.681; 95% CI, =0.521–0.888; P=0.005).
Conclusions: L-SLND yielded a significantly lower risk of morbidity compared to SLND without compromising long-term oncologic outcomes based on available studies with relatively poor quality. L-SLND may serve as an alternative to SLND in treating early-stage NSCLC. Further well-conducted RCTs, however, are badly needed to confirm and update our conclusions.},
	issn = {2077-6624},	url = {http://jtd.amegroups.com/article/view/21443}
}