Objectives In patients with suitable conditions, complete resection is a potential curative treatment for lung metastases of colorectal cancers (CRC). Various prognostic factors affecting survival have been reported in these patients. In our study, the prognostic significance of CEA and CA19‐9 tumor markers in patients who underwent lung resection for CRC metastasis was researched. Methods Fifty‐three patients who underwent lung resection for CRC metastasis between January 2015 and July 2021 were included in the study. The relationship between preoperative and postoperative CEA and CA19‐9 values, survival times, tumor size, and preoperative CEA and CA19‐9 levels were investigated. Results Patients with high preoperative and postoperative CEA had shorter survival (OS) compared with patients with lower values (p ≤ 0.001 and p = 0.009, respectively). Disease‐free survival (DFS) was also shorter in patients with higher preoperative CEA values (p = 0.008). For patients with higher preoperative and postoperative CA 19–9 values, OS and DFS were shorter (p = 0.013 and p ≤ 0.001) and (p = 0.042 and p ≤ 0.001), respectively. There was a weak positive correlation between preoperative CEA value and tumor size (p = 0.008, Pearson correlation coefficient = 0.360). However, a strong positive correlation between preoperative CA19‐9 value and tumor size was discovered (p ≤ 0.001, Pearson correlation coefficient = 0.603). Conclusion In our study, it was shown that preoperative‐postoperative CEA and CA19‐9 levels in patients with metastatic colon carcinoma are associated with overall survival.

Background Recent years have seen an increase in the number of studies of the sublobar resection approach in non–small cell lung cancer (NSCLC) surgery. The purpose of this bibliometric analysis is to assess the significance and impact of articles comparing sublobar resection and lobectomy in NSCLC surgery. Material and Methods The Web of Science database was searched to identify studies comparing sublobar resection and lobectomy in NSCLC surgery published between 2005 and 2020 (accessed: September 11, 2020). The 50 most cited articles were analyzed by years, countries, authors, authors' affiliations, journals, journals' addresses, and impact factors. Results The bibliometric analysis revealed that the most cited article had 443 citations, while the total number of citations of all articles was 2,820. The mean number of citations, in turn, was 56.4 ± 75.62 (1–443) times. The highest number of publications over the past 15 years was in 2016, with eight articles. The Annals of Thoracic Surgery (n = 10; 20%) had the highest number of publications on the list. The articles included in the present study were mostly (n = 35, 70%) published in U.S. journals. While multiple subject matters and analyses were presented by many studies, survival was the topic of greatest interest, with 37 (74%) studies. Conclusion This study revealed that interest in studies comparing sublobar resection with lobectomy has increased in recent years. It also presents both quantitative and qualitative analyses of the most cited articles in the literature on this topic. Therefore, it can serve as a guide for researchers.

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