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The Controlling Nutritional Status (CONUT) Score Predicts Post-operatory Risks and Prognosis in Patients With

Federico Cozzani1,2, Matteo Ricchiuto1,2, Edoardo Virgilio3,2

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The Controlling Nutritional status (CONUT) score predicts outcomes in colon cancer (CC) patients. A low CONUT score is linked to fewer complications, shorter hospital stays, and better survival after CC surgery.

Keywords:
CONUTCONUT scorecolectomycolon cancernutrition

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Area of Science:

  • Oncology
  • Surgical Oncology
  • Nutritional Science

Background:

  • The Controlling Nutritional status (CONUT) score assesses preoperative nutritional status.
  • Existing research often groups colon cancer (CC) and rectal cancer (RC) together, despite their distinct characteristics.
  • There's a lack of studies focusing on the CONUT score's predictive value specifically in surgical CC patients.

Purpose of the Study:

  • To evaluate the predictive role of the CONUT score for the postoperative course and survival in patients undergoing surgery for colon cancer (CC) only.
  • To determine if the CONUT score can differentiate outcomes within the CC patient cohort, independent of other clinicopathological factors.

Main Methods:

  • Retrospective analysis of 341 CC patients who underwent surgery between 2013 and 2018.
  • Utilized serum levels of lymphocytes, total cholesterol, and albumin to calculate the CONUT score.
  • Employed a simplified two-tier CONUT classification: low score (<3) and high score (≥3).

Main Results:

  • Patients with a low CONUT score experienced significantly fewer postoperative complications (surgical and non-surgical) compared to those with a high score.
  • The low CONUT score group had a shorter mean hospital stay (11.2 days vs. 15 days).
  • A low CONUT score was associated with statistically significant improvements in both overall survival and disease-free survival.

Conclusions:

  • The CONUT score is a valuable tool for predicting postoperative outcomes and survival in patients undergoing curative surgery for colon cancer (CC).
  • Systematic preoperative assessment and correction of CONUT parameters (e.g., via artificial nutrition) are recommended to improve patient prognosis.
  • This study supports the use of the CONUT score as a distinct prognostic indicator for CC, separate from RC.