摘要
Abstract
Objective To explore the clinical application value of endorectal ultrasound(ERUS)in the preoperative safety assessment of resection margins in patients with low and ultra-low rectal cancer,and to conduct a comparative analysis with traditional imaging methods(CT).Methods A total of 62 patients diagnosed with low or ultra-low rectal cancer in our hospital from July 2022 to July 2023 were randomly di-vided into an observation group(assessed by ERUS,n=31)and a control group(assessed by CT,n=31).The accuracy of preoperative assessment,safety of postoperative pathological resection margins,perio-perative indicators,postoperative recurrence rate,and quality of life of patients in the two groups were ob-served.Results The positive rate of postoperative pathological resection margins in the observation group was significantly lower than that in the control group(3.2％vs 19.4％,P＜0.05),and the accuracy of preoperative T-staging and N-staging was significantly higher than that in the control group(T-staging:90.3％vs 67.7％;N-staging:87.1％vs 64.5％,P＜0.05).The patients in the observation group had less in-traoperative blood loss(210.4±50.1 mL vs 280.7±60.3 mL,P＜0.05),shorter operation time(120.3±15.4 min vs 145.6±20.8 min,P＜0.05),and a higher proportion of sphincter-preserving surgery(80.6％vs 54.8％,P＜0.05).Within 1 year after surgery,the recurrence rate of patients in the observation group was significantly lower than that in the control group(6.5％vs 25.8％,P＜0.05),and the quality of life score was also significantly better than that in the control group(85.7±5.8 vs 75.3±6.9,P＜0.05).Conclusion ERUS shows significant advantages in the preoperative safety assessment of resection margins of low and ultra-low rectal cancer.It can improve the accuracy of preoperative staging,optimize the surgical plan,reduce the postoperative recurrence rate,and improve the quality of life of patients,which has impor-tant clinical application value.关键词
低位直肠癌/手术/切缘安全性/经直肠超声Key words
Low rectal cancer/Surgery/Safety of resection margins/Endorectal ultrasound
