Department of Gastrointestinal Surgery, Taizhou Hospital, Zhejiang University, China.
Department of Vascular Surgery, Taizhou Hospital, Zhejiang University, China.
J Coll Physicians Surg Pak. 2020 Nov;30(11):1161-1165. doi: 10.29271/jcpsp.2020.11.1161.
To compare the superior mesenteric artery (SMA) and inferior mesenteric artery (IMA) diameters in colorectal cancer compared to control.
Observational study.
Taizhou Hospital, Zhejiang University, Taizhou, China, from March 2019 to June 2020.
A total of 203 diagnosed colorectal cancer patients and 40 patients as control subjects were reviewed. Patients were divided into three groups based on tumor location as the right colon, left colon, and rectal groups. The diameters were measured on axial computed tomography images independently by two observers.
The SMA diameter did not differ between the right colon and control groups (p=0.626). The IMA diameter was significantly higher in the left colon group than in the control group (p=0.002), but there was no significant difference in the IMA diameter between the different tumour stages (p=0.263). The IMA diameter was significantly higher in the rectal group than in the control group (p<0.001). There was a significant increase in the IMA diameter from stage I to stage II rectal cancers (p=0.022) and from stage II to stage III rectal cancers (p=0.003). The IMA diameter did not differ between stage III and IV rectal cancers (p=0.600). In locoregional rectal cancer patients, there was a significant correlation between the IMA diameter and tumour-node-metastasis stage (p<0.001, rs = 0.494).
Patients with rectal cancer and left colon cancer have a wider IMA diameter than patients without colorectal cancer. IMA diameter can be a potential marker for locoregional staging of rectal cancer. Key Words: Superior mesenteric artery, Inferior mesenteric artery, Colorectal cancer, Markers, Diameter.
比较结直肠癌患者肠系膜上动脉（SMA）和肠系膜下动脉（IMA）直径与对照组的差异。
观察性研究。
中国浙江大学台州医院，台州，2019 年 3 月至 2020 年 6 月。
共回顾了 203 例确诊的结直肠癌患者和 40 例对照组患者。根据肿瘤位置将患者分为右结肠癌、左结肠癌和直肠癌三组。两名观察者独立在轴位 CT 图像上测量直径。
右结肠癌组与对照组的 SMA 直径无差异（p=0.626）。左结肠癌组的 IMA 直径明显高于对照组（p=0.002），但不同肿瘤分期之间的 IMA 直径无显著差异（p=0.263）。直肠癌组的 IMA 直径明显高于对照组（p<0.001）。从直肠癌 I 期到 II 期（p=0.022）和从 II 期到 III 期（p=0.003），IMA 直径显著增加。直肠癌 III 期和 IV 期之间的 IMA 直径无差异（p=0.600）。在局部进展期直肠癌患者中，IMA 直径与肿瘤-淋巴结-转移分期之间存在显著相关性（p<0.001，rs=0.494）。
左结肠癌和直肠癌患者的 IMA 直径大于无结直肠癌患者。IMA 直径可能是直肠癌局部分期的潜在标志物。
肠系膜上动脉；肠系膜下动脉；结直肠癌；标志物；直径。
