Nutritional and Metabolic Diseases

Symptoms and General Pathology

All Conditions

Neoplasms

Digestive System Diseases

Obesity

Colorectal Neoplasms

Overweight

Overnutrition

Nutrition Disorders

Body Weight

Intestinal Neoplasms

Gastrointestinal Neoplasms

Digestive System Neoplasms

Gastrointestinal Diseases

Colonic Diseases

Intestinal Diseases

Rectal Diseases

Individuals with a body mass index of ≥ 30 kg/m2 underwent laparoscopic surgery for primary stage I-III colorectal adenocarcinoma.

Individuals with a body mass index of ≥ 30 kg/m2 underwent open surgery for primary stage I-III colorectal adenocarcinoma.

The goal of this observational study is to compare laparoscopic and open surgery outcomes in colorectal cancer patients with BMI ≥ 30 kg/m2 . The main question\[s\] it aims to answer are:

1. the short-term outcome and postoperative outcomes of patients treated with open group versus laparoscopy group
2. the long-term oncologic outcome of patients treated with open group versus laparoscopy group

This study is a retrospective and observational study. Subjects were not be given or offered any treatment during the study. The investigator reviewed the patient's medical history and examination report to determine eligibility based on inclusion and exclusion criteria.

If there is a comparison group: Researchers compared the open group and laparoscopy group to see if the laparoscopic group have better short-term outcomes with comparable oncologic outcomes to the open group.

This study is a retrospective and observational study. Subjects were not be given or offered any treatment during the study. The investigator reviewed the patient's medical history and examination report to determine eligibility based on inclusion and exclusion criteria.

Given the uncertainty regarding the long-term outcomes of laparoscopy in obese patients with CRC, this study aimed to analyse a decade of data comparing laparoscopic and open surgery outcomes in patients with BMI ≥ 30 kg/m2 who had undergone treatment for CRC at the Linkou Chang Gung Hospital.

Comparison of Laparoscopic and Open Surgery for Colorectal Malignancy in Obese Patients

Analysis of the Prognostic Impact of Laparoscopic Surgery in Patients With Systemic Obesity and Colorectal Malignant Tumors

The data that support the findings of this study are available from the corresponding author upon reasonable request

Chang Gung Memorial Hospital

Inflammation

Pain, Postoperative

Pain

Anti-Arrhythmia Agents

Channel Blockers

Central Nervous System Depressants

All Drugs and Chemicals

Analgesics

Lidocaine

Anesthetics

Remifentanil

Anesthetics, Local

Sodium Channel Blockers

Diuretics, Potassium Sparing

Will receive during the colorectal surgery under General Anesthesia intravenous lidocaine bolus 1.5mg/kg at the beginning of anesthesia (induction) and 1.5mg/kg/h until the end of anesthesia.

Will receive the same volume of normal saline for the entire duration of anesthesia.

lidocaine 2% will be used for induction (1 syringe of 5 ml, administered dose of 1.5 mg / kg) and for intra-operative infusion (1 syringe of 30 ml, infusion dose of 1.5 mg / kg / h). Lidocaine syringes and placebo will be prepared on a blinded manner so that the investigating anesthesiologist in charge of the patient in the operating room, as well as the respiratory therapist and the recovery room nurse and the floors do not know what the patient received during the anesthesia (whether IVL or placebo).

intravenous lidocaine (IVL)

Group Control will receive (double blinded) an infusion of saline at the same volume and regimen than the lidocaine 2% group (IVL).

Placebo

Philippe Richebé, MD PhD

Nadia Godin, RN

Philippe Richebe, MD, PhD

Philippe Richebé, MD, PhD

This study evaluates the impact of intraoperative intravenous lidocaine administered during laparoscopic colorectal surgery on the intraoperative remifentanil consumption as well as postoperative pain and opioid requirements. It will evaluate immune cell activity for 48hours after surgical stress and general anesthesia with or without intravenous lidocaine.

Hypothesis: We hypothesize that the intravenous lidocaine (IVL) versus placebo administered during laparoscopic colorectal surgery will allow for: a reduction in intraoperative remifentanil consumption, an improvement in patients' early rehabilitation after surgery, and an enhancement of the immune profile of our patients through an increase in the balance Th1/Th2 and cellular immunity.

Background: so far, IVL was shown to have several properties: analgesic, anti-inflammatory, and anti-hyperalgesic. Its effects on rehabilitation and pain are still controversial except for abdominal surgery. To date, no study evaluated the impact of IVL in colorectal surgery on intraoperative consumption of remifentanil. Postoperative immune suppression is multifactorial and depends on the surgical traumatism, but also on the doses of opioids given during anesthesia. No study evaluated in colorectal surgery the impact of IVL on postoperative cellular immunity and on the risk of cancer recurrence.

Specific Objectives: primary objective: to reduce by 30% the consumption of remifentanil in the IVL group versus the placebo group; secondary objectives: to evaluate the quality of recovery from anesthesia in the OR (awakening and extubation time), in the PACU and on the wards (pain scores, opioid consumption with patient controlled analgesia (PCA), postoperative nausea and vomiting (PONV), transit recovery time, time in PACU and time in hospital), and to evaluate the postoperative inflammatory parameters and adaptative immune functions (Th1/Th2) until postoperative 48h.

Methods: 60 adult patients ASA 1-3 scheduled for elective laparoscopic colorectal surgery will be included in this randomized controlled trial. Randomisation will be into group Control (C) and Lidocaine (IVL). Anesthesia and monitoring will be standardized and accompanied with the monitoring of the depth of anesthesia (BISpectral index, Medtronic) and the depth of analgesia (NoL index, Medasense LTD, recorded on an observational manner). IVL group will blindly be administered intravenous 1.5 mg/kg lidocaine bolus and then 1.5 mg/kg/h until the end of the surgery as previously described. C group will receive the same amount (ml) of placebo. Statistics: a preliminary analysis (idem group C) showed that the total amount of remifentanil given for this type of surgery was 2481+/-985 mcg (duration 141+/-30Min). Considering that we wish to reduce by 30% the remifentanil consumption in the group IVL, the number of patients to be included per group is 30 (alpha 0.05 and beta 20%).

Significance/Importance: this study will evaluate the impact of IVL on intraoperative consumption of remifentanil but also on immune functions after surgery in order to reduce the risk of cancer recurrence. If this study brings positive results, this will lead to a significant change in clinical practice of anesthesia. This is a pilot study on the immune functions, but this might bring very strong results to ask for future grants on the impact of IVL on cancer recurrence.

Study Design: Prospective, randomized controlled study. Subject Population: Adult patients scheduled to undergo elective laparoscopic colorectal surgery under general anesthesia.

Sample Size: 60 patients will be evaluated in this study. Study Duration: 1 year. Study Center: Maisonneuve-Rosemont Hospital, CIUSSS de l'Est de l'Ile de Montreal, Montreal, Quebec, Canada.

Adverse Events: None expected.

Two groups of patients. Randomization into the treatment group or placebo group according to a randomization list for a total number of patients of 60.

The drug administered intraoperatively (intravenous lidocaine or intravenous placebo) will be blinded to patient, anesthesiologist, research nurse for the entire duration of the study.

Impact of Intravenous Lidocaine During Colorectal Surgery on Pain and Immune Functions

Impact of Intraoperative Intravenous Lidocaine Administered During Laparoscopic Colorectal Surgery on Remifentanil Consumption, Postoperative Pain and Immune Cell Activity: A Pilot Study

Reduction of total intraoperative remifentanil consumption by 30% in the intravenous lidocaine group compared with the control group.

Evaluation of the number of remifentanil boluses given intraoperatively, based on the intraoperative NOL index from T0 which is the time of the incision

The Dräger Perseus A500 that we have in each anesthesia room offers the opportunity to get the ml of halogenous gas consumed precisely, and our electronic extraction database will allow to have this data in ml per second and the total at the end of surgery

Evaluation of time for extubation after surgery in the operating room

Evaluation of the hydromorphone dose in mg used as post-operative titration immediately in the recovery room (PACU) to obtain NRS pain scores \< 3/10

Evaluation of the nausea and vomiting scores (0 to 3) for the first 48 hours

Evaluation of the length of stay in the recovery room based on the Aldrete scores (time to be ready to leave the recovery room)

total hydromorphone consumption (mg given by Patient Controlled Analgesia) on wards for 48 hours

Evaluation of the satisfaction of the patient as for the management of his pain for 48 hours

Assessment of total hospital stay in hours

Evaluation of the time in hours required for the emission of a first gas, a sign of resumption of normal intestinal function

Assessment of rehabilitation scores and cognitive functions at 48h after surgery

Assessment of inflammation parameters by blood sample for 48 hours

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization
Comparison of Laparoscopic and Open Surgery for Colorectal Malignancy in Obese Patients	NCT06221878	Colorectal Canc... Obesity		18 Years -	Chang Gung Memorial Hospital
Impact of Intravenous Lidocaine During Colorectal Surgery on Pain and Immune Functions	NCT03410836	Intravenous Lid...	intravenous lid... Placebo	18 Years -	Ciusss de L'Est de l'Île de Montréal
Impact of Intravenous Lidocaine During Colorectal Surgery on Pain and Immune Functions	NCT03410836	Intravenous Lid...	intravenous lid... Placebo	18 Years -	Ciusss de L'Est de l'Île de Montréal

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