Relationship between CONUT Score and Foot Ulcer Healing

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  • Kimura Tomomi
    Department of Plastic and Reconstructive Surgery, Fukuyama City Hospital
  • Yamamoto Yasuhiro
    Department of Plastic and Reconstructive Surgery, Fukuyama City Hospital
  • Arai Yasunori
    Department of Cardiology, Fukuyama City Hospital
  • Kato Yuichi
    Department of Cardiology, Fukuyama City Hospital
  • Koyama Erika
    Department of Plastic and Reconstructive Surgery, Fukuyama City Hospital

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Other Title
  • 足潰瘍患者におけるCONUT値と潰瘍治癒の関連性
  • アシ カイヨウ カンジャ ニ オケル CONUTチ ト カイヨウ チユ ノ カンレンセイ

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Abstract

Background: Foot ulcer healing is influenced by various factors. As poor nutritional status may cause poor wound healing, we investigated the relationship between controlling nutritional status（CONUT）score and foot ulcer healing.<br> Method: This retrospective single-center study was conducted using data taken between April 2010 and April 2021. A total of 186 limbs of 136 patients with chronic foot ulcers who underwent minor amputation were included. The CONUT score was determined using the preoperative blood test values. The study population was divided into an ulcer healing group and a non-healing group.<br> Results: The healing group included 146 limbs, and the non-healing group included 40 limbs. The mean CONUT scores were 4.50±2.63 in the healing group and 5.78±2.47 in the non-healing group（p= 0.008）. ROC curve indicated that the most appropriate CONUT score cutoff was 5. In multivariate analysis, dialysis（p= 0.026）and high CONUT score（≥5）（p= 0.038）were predictive of incomplete ulcer healing.　<br> Conclusion: Poor nutritional status, especially CONUT score（≥5）, decreases the healing rate of foot ulcers. CONUT score may be helpful in predicting the prognosis of foot ulcers.

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