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Technical considerations depending on the level of vascular ligation in laparoscopic rectal resection
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Technical considerations depending on the level of vascular ligation in laparoscopic rectal resection
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Technical considerations depending on the level of vascular ligation in laparoscopic rectal resection
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Journal Article
Technical considerations depending on the level of vascular ligation in laparoscopic rectal resection
2022
Overview
AimIn addition to ischemia there is also anastomotic ends tension proven to be a risk factor for anastomotic leak. HT vascular ligation is accepted as a rule, in attempt to achieve tension-free anastomosis. LT is a preferred option, based on the more accurate preservation of proximal intestinal segment microperfusion and lower risk of damage to the hypogastric plexus. The aim of this study is evaluation of comparative indicators in high tie (HT) and low tie (LT) laparoscopic rectal resections.MethodsA prospective nonrandomized comparative cohort study of patients in our department with cancer of the rectum in clinical stage I–III, operated on in laparoscopic approach over a 6-years period.ResultsFor the period 2015–2020, a number of 208 laparoscopic surgeries have been done for rectal cancer. Patients were divided into three groups—group A with HT vascular ligation 116 pts. (69%), group B—53 pts. (25%), underwent low ligation—LT and group C—39pts. (19%) low tie plus lymph node dissection of the apical LN group (LT-appic LND). The distribution was made without randomization, based on the operators’ expertise. Anastomotic leaks were 3.8% in group A, 3.0% in group B and 2.9% in group C (p > 0.05) with no significance difference. There is no significant difference in the number of lymph nodes obtained in group A and group B, while in group C the number of the harvested lymph nodes was higher (p < 0.05). The indicators for intestinal / defecation dysfunction, as well as for urinary/sexual dysfunction, according to our data, are significantly more favorable in patients with LT, in contrast to the other two groups.ConclusionHT vascular ligation attempts to achieve tension-free anastomosis and more harvested lymph nodes. However, LT could be a preferred option, based on the lack of significant evidence for a difference in specific oncological survival and due to more accurate preservation of proximal intestinal segment microperfusion to prevent anastomosis dehiscence, also for its lower risk of damage to the hypogastric plexus. Splenic flexure mobilization provides elongation of the proximal intestinal segment, but has no proven effect on anastomotic leakage incidence. It increases surgical duration and is in fact necessary in up to 30% of the cases. At the present moment there is no precise data whether LT has an advantage in terms of prevention of autonomic nervous and urogenital dysfunction. New prospective randomized and highly probative studies are needed to standardize the procedures in specific clinical situations.
Publisher
Springer Nature B.V
