Intraperitoneal Atomization of Levobupivacaine During Gynaecological Laparoscopic Procedures ; Impact on Pain, Opioid Use and Length of Recovery Room Stay (IPLA). (IPLA)

Intraperitoneal Atomization of Levobupivacaine During Gynaecological Laparoscopic Procedures ; Impact on Pain, Opioid Use and Length of Recovery Room Stay (IPLA).

Intraperitoneal Atomization of Levobupivacaine During Gynaecological Laparoscopic Procedures ; Impact on Pain, Opioid Use and Length of Recovery Room Stay (IPLA).

In this study, we will compare 3 treatments. The first group of patients will receive the standard treatment (paracetamol, diclofenac and an opioid if necessary) with infiltration of the portal sites with the local anesthetic ( 0.5% levobupivacaine) . The second group of patients will receive the standard of care, with infiltration of the portal sites with the local anesthetic ( 0.5% levobupivacaine) and additional injection of the local anesthetic ( 0.5% levobupivacaine, non -diluted) in the peritoneal cavity via a trocar both at the beginning and the end of the surgery . The third group of patients will receive the standard of care, with infiltration of the portal sites with the local anesthetic ( 0.5% levobupivacaine) and additional intraperitoneal atomization of the local anesthetic. We will use non-diluted 0.5% levobupivacaine delivered directly onto the target sites both at the beginning and the end of surgery. The drug will be delivered using OptiSpray® surgical spray device, an inexpensive delivery system that will direct a fine mist of drug directly to the areas of the peritoneal cavity that are theoretically the cause of post-op pain (diaphragms, peritoneal abdominal surface, surgical dissection site). Our primary goal is to assess the efficacy of intraperitoneal atomization of levobupivacaine in reducing postoperative pain and of opioid requirements in patients undergoing gynecological laparoscopic procedures in one-day surgery.

The first group of patients will receive the standard treatment (paracetamol, diclofenac and an opioid if necessary) with infiltration of the portal sites with the local anesthetic ( 0.5% levobupivacaine).

The second group of patients will receive the standard of care, with infiltration of the portal sites with the local anesthetic ( 0.5% levobupivacaine) and additional injection of the local anesthetic ( 0.5% levobupivacaine, non -diluted) in the peritoneal cavity via a trocar both at the beginning and the end of the surgery.

The third group of patients will receive the standard of care, with infiltration of the portal sites with the local anesthetic ( 0.5% levobupivacaine) and additional intraperitoneal atomization of the local anesthetic.

All port sites will be injected with 0.1ml/kg levobupivacaine at the end of surgery, after trocar removal.

Immediately following insufflation 0.15ml/kg levobupivacaine will be injected in the peritoneal cavity via a trocar. At the end of the surgery, this process will be repeated with the same dose at 0.15ml/kg.

Immediately following insufflation the Optispray® surgical spray device will be inserted into the abdomen and directed towards the diaphragms, dome of inflated abdomen, bowel peritoneum and surgical dissection site and the study drug will be delivered as an atomized spray in the following volumes: Each subdiaphragmatic area 0.05 ml/kg Dome of abdomen then settling onto bowel 0.05 ml/kg Surgical dissection site 0.05 ml/kg At the end of the surgery - this process will be repeated with the same doses at 0.15 ml/kg.

Pain evaluation will be done using an 11-point numeric rating scale (0 = no pain, 10 = worst pain possible).

Pain evaluation will be done using an 11-point numeric rating scale (0 = no pain, 10 = worst pain possible).

Post-operative pain intensity after laparoscopic gynaecological surgery from hospital discharge until 24 hrs post-operatively.

Patients will be asked to evaluate their pain at 6 hrs, 12 hrs, 18 hrs and 24 hrs post-operatively using an 11-point numeric rating scale (0=no pain and 10= worse pain possible) and report it by telephone.

Post-operative shoulder pain after laparoscopic gynecological surgery from hospital discharge until 24 hrs post-operatively.

Patients will be asked to evaluate their pain at 6 hrs, 12 hrs, 18 hrs and 24 hrs post-operatively using an 11-point numeric rating scale (0=no pain and 10= worse pain possible) and report it by telephone.

Post-operative nausea and vomiting (PONV) in the first 24 hrs post-operatively, after laparoscopic gynecological surgery.

Nausea and vomiting will be evaluated every 15' during the first 2 hrs, every 30' until hospital discharge, using a PONV verbal descriptor scale 0 to 2 points : 0=no nausea, 1=any nausea, 2 =vomiting. After discharge, patients wil be asked to evaluate PONV at 6 hrs, 12 hrs, 18 hrs and 24 hrs post-operatively and report it by telephone.

Sedation will be evaluated at 0, 1, 2, 4, 6 hrs post-operatively, using the Ramsay sedation score (1= anxious and agitated, 2= cooperative, tranquil, oriented, 3=responds only to verbal commands, 4= asleep with brisk response to light stimulation, 5=asleep without response to light stimulation, 6=non-responsive).

Inclusion Criteria: Patients who are planned for gynaecological laparoscopic interventions on an ambulatory basis. Exclusion Criteria: Less than 18 year old. Weight less than 50 kg and more than 80 kg. Pregnant. Prisoners; Allergic to topical anesthetics (Amides specifically). Allergic to Opioids as a class. Currently or within the last 30 days been prescribed an opiate medication. Chronic pain syndrome.