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<p>Malnutrition is a well-known risk factor for postoperative morbidity but a uniform tool for evaluation of its severity is still debatable. Most studies on its risks have been performed in western countries. We evaluated the nutritional risk index(NRI) a simple and objective risk stratification tool to assess the results of malnutrition in our tertiary care practice in India. We conducted a prospective observational study to correlate the preoperative NRI of our patients with the severity of their postoperative complications using the Clavien-Dindo grades as well as the duration of their hospital and ICU stays. We included 701 patients(420 males and 281females; M:F 6:4) of whom 539 (76.9%) had elective and 162 (23.1%) had emergency procedures. Severe malnutrition was identified in 289 (41.2%) patients. On univariate analysis the NRI, emergency surgery, intraoperative blood loss, ASA score were the predictors of severe (Clavien Dindo ≥ 3) grade postoperative complications. Patients with severe malnutrition according to the NRI were 6.7 times at risk of severe postoperative complications. On regression analysis the NRI showed a negative correlation with the duration of hospital and ICU stays (r = - 0.446 and -0.321 respectively). NRI is a simple preoperative tool for risk stratification after major gastrointestinal surgery and a low preoperative NRI predicts severe postoperative complications.</p>

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The Use of a Nutritional Risk Index to Predict Severe Postoperative Complications After Major Gastrointestinal Surgery: A Prospective Observational Study

  • 期刊论文

  • 发表日期：

    2026年4月6日

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  • Praveen K N,
  • Bharath Kumar Bhat,
  • Shailendra Lalwani,
  • Samiran Nundy

摘要

Malnutrition is a well-known risk factor for postoperative morbidity but a uniform tool for evaluation of its severity is still debatable. Most studies on its risks have been performed in western countries. We evaluated the nutritional risk index(NRI) a simple and objective risk stratification tool to assess the results of malnutrition in our tertiary care practice in India. We conducted a prospective observational study to correlate the preoperative NRI of our patients with the severity of their postoperative complications using the Clavien-Dindo grades as well as the duration of their hospital and ICU stays. We included 701 patients(420 males and 281females; M:F 6:4) of whom 539 (76.9%) had elective and 162 (23.1%) had emergency procedures. Severe malnutrition was identified in 289 (41.2%) patients. On univariate analysis the NRI, emergency surgery, intraoperative blood loss, ASA score were the predictors of severe (Clavien Dindo ≥ 3) grade postoperative complications. Patients with severe malnutrition according to the NRI were 6.7 times at risk of severe postoperative complications. On regression analysis the NRI showed a negative correlation with the duration of hospital and ICU stays (r = - 0.446 and -0.321 respectively). NRI is a simple preoperative tool for risk stratification after major gastrointestinal surgery and a low preoperative NRI predicts severe postoperative complications.