The purpose of the study is to compare outcomes of laparoscopic versus open liver resection for colorectal metastases in a prospective and randomized study. The study will include all non-anatomic liver resections in our institution. The primary end point is that the use of laparoscopic technique significantly can reduce the frequency of complications to liver resection. Secondary end points are 5-year survival, immediate surgical outcomes, quality of life and degree of impairment of the immune system.
Full protocol is published open access in Trialsjournal: http://www.trialsjournal.com/content/16/1/73
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
280
Patients will be operated with open liver resection for colorectal metastasis
Patients will be operated with laparoscopic liver resection
Oslo University Hospital, Department of Gastrointestinal surgery, The National Hospital
Oslo, Norway
30 Days Perioperative Morbidity
This study aims to compare major intraoperative and postoperative parameters in patients randomized to either laparoscopic or open liver resection. Pre- and perioperative events relevant for surgical outcomes will be registered. The following intraoperative parameters will be compared: operative time, blood loss, blood transfusion, while intraoperative incidents will be classified according to the Satava classification. Morbidity within the first 30 days is the primary outcome (morbidity, yes/no), and will be classified and analysed according to the validated classification for postoperative morbidity as described by Dindo et al, by the Accordion system and by the Comprehensive Complication Index
Time frame: Within 30 days after surgery
5 Year Survival
5 year survival * overall * disease free * recurrence free
Time frame: 5 years after surgery
Recurrence Pattern
Pattern of recurrence in liver and extrahepatic. Studied by postoperative CT every 4 months for 2 years and every 6 months for the following 3 years. Local recurrence and new tumors will be recorded.
Time frame: 5 years
Immediate Oncologic Outcome
Immediate oncologic outcome is the result of surgical specimen evaluation - evaluation of tumor resection margins.
Time frame: 2 months after surgery
Postoperative Quality of Life
Evaluation of postoperative quality of life at baseline, 1 month, 4 months and 2 years using the SF-36 and the EORTC qlq-30 lmc-21 forms
Time frame: Up to 2 years
Surgical Trauma and Activation of the Immune System
Evaluation of surgical trauma caused by open and laparoscopic resection by means of analyzing complement and cytokine activation at set perioperative time points.
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Time frame: 72 hours
Health Economy
We intend to compare overall cost of treatment for the hospital and for the health care system
Time frame: 1 year
Severity of Postoperative Pain
To compare pain the first 5 postoperative days, at 1 month and 4 months. Patients in the open group will be randomized to receiving either a patient controlled analgesic pump containing opioids, or a patient controlled epidural analgesic pump. In laparoscopic group all patients will receive a PCA.
Time frame: 4 months
Molecular Biology
The aim is to perform molecular characterization of biological samples harvested perioperatively and during follow-up, and to correlate results with clinical end points.
Time frame: 20 years
Anti-tumor Immunology
The aim is to evaluate immunological parameters related to anti-tumor immunity and inflammatory factors
Time frame: 20 years
Imaging
The aim is to evaluate two new imaging methods, CT perfusion of liver and LIME-PET, in order to optimize the preoperative identification of colorectal liver metastases.
Time frame: 5 years
Severity of Morbidity
Severity of complications will be assessed by the Comprehensive Complication Index and the Accordion system
Time frame: 30 days
Level of Adhesions
Level of adhesions will be recorded during repeated liver resection in patients formerly randomized to open or laparoscopic liver resection. a modified version of the peritoneal adhesion index will be used for scoring.
Time frame: 2 years
Number of Patients That Complete Adjuvant Oncologic Treatment
Time from operation to initiation of oncologic treatment, and the total number of courses given will be recorded and compared between the groups.
Time frame: 1 year
Readmissions
Readmissions within 30 days after surgery will be recorded, both admissions to Oslo University Hospital and to referring hospitals.
Time frame: 30 days
Incidence of Incisional Hernia
CT scans will be performed to examine for incisional hernia 1 year after surgery
Time frame: 1 year