scholarly journals Short- and long-term outcomes of rectal cancer patients with high or improved low ligation of the inferior mesenteric artery

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Chenghai Zhang ◽  
Lei Chen ◽  
Ming Cui ◽  
Jiadi Xing ◽  
Hong Yang ◽  
...  

Abstract The ligation site of the inferior mesenteric artery (IMA) during laparoscopic radical resection for rectal cancer has been controversial. Consecutive patients (n = 205) with rectal cancer who underwent laparoscopic-assisted low anterior resection from January 2009 to December 2015 were retrospectively analyzed. The patients were divided into high ligation (n = 126) and improved low ligation groups (n = 79). A total of 205 rectal cancer patients underwent laparoscopic assisted anterior resection: 126 patients in the high ligation group and 79 patients in the improved low ligation group. The improved low ligation group was better than the high ligation group in terms of postoperative flatus time and postoperative defecation time. There were no differences between the groups in terms of blood loss, operation time, total number of lymph nodes, anastomotic leakage, postoperative time to first liquid diet and postoperative hospital stay. There were also no differences in 5-year overall survival (OS). Compared to high ligation, the improved low ligation ensures the extent of lymph node dissection, and promotes the early recovery of postoperative gastrointestinal function, but does not increase the operation time, bleeding risk, or anastomotic leakage. A ligation site of the IMA in laparoscopic rectal cancer surgery may not influence oncological outcomes.

2019 ◽  
Vol 269 (6) ◽  
pp. 1018-1024 ◽  
Author(s):  
Giulio M. Mari ◽  
Jacopo Crippa ◽  
Eugenio Cocozza ◽  
Mattia Berselli ◽  
Lorenzo Livraghi ◽  
...  

Author(s):  
Feng Chi ◽  
Shenkang Zhou ◽  
Tienan Bi ◽  
Wenjun Zhao ◽  
Xiang Wang

IntroductionDilated inferior mesenteric vein has been reported in rectal cancer patients. However, no study has yet reported inferior mesenteric artery (IMA) enlargement in rectal cancer. We aimed to assess the relationship between the IMA diameter and rectal cancer.Material and methodsPatients diagnosed with rectal cancer and a control group of 42 patients in our hospital from July 2017 to June 2019 were evaluated. The IMA diameter was independently measured by two observers on axial computed tomography images.ResultsThe mean IMA diameter was wider in rectal cancer patients (2.49±0.53 mm) than in the control group (2.20±0.47 mm, p<0.001). The IMA diameter of patients with stage I, stage II, stage III, and stage IV cancers was 2.24±0.36 mm, 2.45±0.39 mm, 2.80±0.55 mm, and 2.85±0.51 mm, respectively (p<0.001). The IMA diameter correlated positively and moderately with TNM stage (r=0.519, p<0.001). The IMA diameter of patients with T1, T2, T3, and T4 tumors was 2.18±0.31 mm, 2.39±0.50 mm, 2.55±0.48 mm, and 2.73±0.51 mm, respectively (p<0.001). The IMA diameter also correlated positively and moderately with T stage (r=0.457, p<0.001). The IMA diameter of patients with N0, N1, and N2 tumors was 2.37±0.39 mm, 2.83±0.60 mm, and 2.71±0.40 mm, respectively (p<0.001); however, the IMA diameter did not correlate with N stage (r=0.166, p=0.077). Patients with M1 tumors had a wider IMA diameter than patients with M0 tumors (p=0.011).ConclusionsThe IMA in rectal cancer patients enlarges as the TNM stage gets higher. The IMA diameter can be accepted as a possibly important marker for the staging of rectal cancer.


2021 ◽  
Author(s):  
Pavan Kumar Jonnada ◽  
Monish Karunakaran ◽  
Dayakar Rao

The level of ligation of the inferior mesenteric artery (IMA) is a critical factor that can influence outcomes. The aim of this meta-analysis was to compare outcomes following high or low ligation of IMA. A systematic search was performed for relevant articles published between 2000 and 2020. Meta-analysis was performed using fixed-effects or random-effects models; 31 studies were included. Results show significantly lower rates of anastomotic leak, postoperative morbidity and urinary dysfunction with low ligation compared with high ligation. Though recurrence rates were similar, 5-year overall survival was longer in the low ligation group. Low ligation of IMA decreases anastomotic leak rates and overall morbidity. Addition of IMA nodal clearance to low ligation appears to improve overall survival in colorectal cancer.


Surgery Today ◽  
2020 ◽  
Vol 50 (6) ◽  
pp. 560-568
Author(s):  
Sung Sil Park ◽  
Boram Park ◽  
Eun Young Park ◽  
Sung Chan Park ◽  
Min Jung Kim ◽  
...  

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