Post recurrence survival in early versus late period and its prognostic factors in rectal cancer patients

• Published in: Scientific reports Vol. 14; no. 1; pp. 17661 - 10
• Main Authors: Shahabi, Fatemeh, Mehri, Ali, Abdollahi, Abbas, Hoshyar, Seyed Hossein Hosseini, Ghahramani, Abolfazl, Noei, Mahdie Ghiyasi, Orafaie, Ala, Ansari, Majid
• Format: Journal Article
• Language: English
• Published: England Nature Publishing Group 26.07.2024; Nature Publishing Group UK; Nature Portfolio
• Subjects: Adult; Aged; Cancer; Colorectal cancer; Early recurrence; Female; Follow-Up Studies; Humans; Iran - epidemiology; Late recurrence; Male; Medical prognosis; Metastases; Middle Aged; Neoplasm Recurrence, Local; Neoplasm Staging; Patients; Post-recurrence survival; Prognosis; Rectal cancer; Rectal Neoplasms - mortality; Rectal Neoplasms - pathology; Rectal Neoplasms - surgery; Rectum; Retrospective Studies; ROC Curve; Survival; Time Factors; Iran; Early recurrence; Late recurrence; Rectal cancer; Post-recurrence survival
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-024-67852-7

To identify factors associated with post-recurrence survival (PRS), we examined our institutional recurrence patterns following definitive resection for rectal cancer. We reviewed all patients with rectal cancer diagnosed at three hospitals in the east of Iran from 2011 to 2020. The optimal cut-off value was determined by receiver operating characteristic (ROC) analysis to determine early recurrence. The effect of recurrence time was evaluated on PRS. 326 eligible patients with a mean ± SD age of 56 ± 12.8 years were included in this study. In a median (IQR: Inter-quartile range) follow-up time of 76 (62.2) months, 106 (32.5%) patients experienced at least any recurrence (locoregional or distant metastasis) following primary resection. The median (IQR) time from initial surgery to recurrence was 29.5 (31.2) months. Based on ROC analysis, early recurrence was specified at ≤ 29 months. However, for the patients who experienced only locoregional recurrence, 33 months was the cut-off to define early recurrence. Recurrence time and recurrence management were both significant variables on PRS. Moreover, TNM staging was significantly associated with early recurrence (P = 0.003). In this research, recurrence time, recurrence management and TNM staging were found to be correlated with PRS.