Laparoscopic Right Hemicolectomy With Transrectal Specimen Extraction for Colon Cancer

Laparoscopic Right Hemicolectomy With Transrectal Specimen Extraction for Colon Cancer

The purpose of this study is to investigate the preliminary surgical outcomes of laparoscopic right hemicolectomy with transrectal specimen extraction. The hypothesis is that this type of natural orifice specimen extraction surgery (NOSES) could achieve good short-term and oncological outcomes for right colon cancer patients.

This study is a prospective single-arm clinical study. 37 patients with right colon cancer undergoing laparoscopic right hemicolectomy with transrectal specimen extraction are planned to be included in the study. The purpose of this study is to investigate the preliminary surgical outcomes of laparoscopic right hemicolectomy with transrectal specimen extraction. The primary endpoint is the postoperative complications of this type of natural orifice specimen extraction surgery (NOSES). The primary hypothesis is that NOSES could reduce postoperative complications. In addition, operating time, intraoperative bleeding, post-operative recovery and quality of life (QoL) are secondary endpoints.

Inclusion Criteria:

1. Biopsy proven colon carcinoma;
2. Imaging diagnosis of T1-3 colon cancer;
3. The tumor located in the cecum, ascending colon, or colonic hepatic flexure;
4. Maximal tumor diameter ≤5 cm;
5. Body mass index (BMI) ≤30 kg/m2;
6. Written informed consent;

Exclusion Criteria:

1. Complete intestinal obstruction;
2. Hepatitis activity and peripheral neuropathy (such as peripheral neuritis, pseudo meningitis, motor neuritis, and sensory impairment);
3. Significant organ dysfunction or other significant diseases, including clinically relevant coronary artery disease, cardiovascular disease, or myocardial infarction within the 12 months before enrollment; severe neurological or psychiatric history; severe infection; active disseminated intravascular coagulation;
4. Pregnancy or breastfeeding;
5. Alcohol abuse or drug addiction;
6. Concurrent uncontrolled medical condition;