The purpose of this study is to determine the clinical efficacy, safety, and oncologic outcomes of ileocecal resection (ICR) with D3 lymphadenectomy compared to standard right hemicolectomy(RHC) for cecal cancer.
The design involves random allocation of eligible patients to ICR or RHC group in 1:1 ratio. Requirements applied to centers participating in the trial and surgeons performing procedures are described in the protocol and refer to center volume and surgeon's experience. Regular quality control includes the requirement to photograph the surgical specimen with a mark to determine the extent of lymphadenectomy performed and the number of the lymph node group. After surgery patients are treated according to local standards, regardless of whether ICR or RHC was performed. Short-term and long-term outcomes are recorded according to the protocol. Intervention. In all cases the tumor is localized in the area of the cecum; the border of the transition to the ascending colon is the upper lip of the ileocecal valve. The patient is not included in the study if the preoperative stage of examination reveals: synchronous cancer, distant metastasis (M1), locally advanced nature of the primary tumor (cT \> 3). All patients will be randomly divided into two groups in a 1:1 ratio. 1. Research group (ICR) - Laparoscopy ileocecal resection with extended D3 lymphadenectomy (including 201, 202, 203 and 213 groups of lymph nodes). The minimum distance from the tumor is 10 cm, along the line of adequate blood supply. Next step - formation of a manual double-row ileo-ascendo-anastomosis. 2. Control group (RHC) - Laparoscopy right hemicolectomy with D3 lymphadenectomy (including 211, 212, 221, 222-rt groups of lymph nodes). Next step - formation of a manual double-row ileo-transverse-anastomosis. Expected Results. The ICR will improve the short-term results of treatment of patients with cecal cancer compared with the standard RHC technique without affecting long-term results.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
200
Laparoscopy ileocecal resectionith extended D3 lymphadenectomy including 201, 202, 203 and 213 groups of lymph nodes. Manual double-row ileo-ascendo-anastomosis.
Laparoscopy right hemicolectomy with D3 lymphadenectomy including 201, 202, 203, 213, 211, 212, 221, 222-rt groups of lymph nodes. Manual double-row ileo-transverse-anastomosis.
Moscow Clinical Scientific Center
Moscow, Russia
RECRUITINGOverall survival.
Overall survival of patients.
Time frame: 5 years after the last patient.
Disease-free survival.
Survival without local or distant recurrence.
Time frame: 3 years after the last patient.
Disease-free survival.
Survival without local or distant recurrence.
Time frame: 5 years after the last patient.
Postoperative morbidity.
Complications after surgery.
Time frame: The first 30 days after surgery.
Postoperative mortality.
Death after surgery.
Time frame: The first 30 days after surgery.
Total number of lymph nodes removed.
Number of removed lymph nodes according to pathomorphological evaluation.
Time frame: Post-intervention at week 3.
Total number of metastatic lymph nodes and correlation by group.
The ratio of affected lymph nodes into groups (201, 202, 203, 213, 211, 212, 221 or 222-rt) depending on the type of surgical treatment. Based on pathological assessment.
Time frame: Post-intervention at week 3.
Total length of removed bowel.
Average length of removed bowel in both groups according to pathomorphological evaluation (millimeters).
Time frame: Post-intervention at week 3.
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Area of mesentery removed.
Average area of the removed mesentery in each groups according to pathomorphological evaluation (square centimetre - sq.cm).
Time frame: Post-intervention at week 3.
Description of blood loss during the intraoperative period.
Average blood loss during surgery in each group (ml).
Time frame: During the surgery.
Operation time.
Average operation time for each group (minutes - min).
Time frame: Immediately after the surgery.
Conversion.
The total number of conversions for each group.
Time frame: During the surgery.
Number of days of inpatient treatment.
Average number of days of inpatient treatment.
Time frame: During hospitalization up to 4 weeks