NoL and BIS Monitoring on Patients Recovery and Safety After Surgery

Pain Clinical Trial

— CINAAMON  

Official title:

Evaluation of the Combined Intraoperative Depth of Analgesia (NoL) and Depth of Anesthesia (BIS) Monitoring on the Patients' Recovery and Safety After Surgery: A Pilot Study

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03410485
• Other study ID #: CER15083
• Secondary ID: CAS-2016-010
• Status: Recruiting
• Phase: N/A
• First received: October 11, 2016
• Last updated: January 18, 2018
• Start date: October 2016
• Est. completion date: December 2018

Study information

• Verified date: January 2018
• Source: Maisonneuve-Rosemont Hospital
• Contact: Philippe Richebé, MD, PhD
• Phone: +1-514-743-6558
• Email: philipperichebe[@]live.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

So far, only vital signs (mostly, blood pressure and heart rate) helped the anesthesiologist to administer hypnotic agents or analgesics. Many devices have offered pain monitoring for anesthetized patients, the most recent being the PMD200 device and its NoL index. The BIS index is widely used for depth of anesthesia monitoring. The hypothesis of this study is that the intraoperative combination of both the NoL and the BIS indices to guide the delivery of opioids and hypotonics respectively, will improve the quality of recovery as well as the safety after anesthesia in ERAS patients undergoing colonic surgery.

Description:

Hypothesis is that the intraoperative use of the combination of 1) the NoL index (given by the PMD200TM monitor, Medasense LTD inc, Ramat, Israel) to monitor pain levels and to guide opioids' administration during surgery, and 2) the BIS index (Medtronic, St-Laurent, QC, Canada) to monitor the depth of hypnosis during anesthesia and to guide the administration of anesthetic halogenous gases, will improve the quality of recovery as well as the safety after anesthesia in ERAS (Early Rehabilitation After Surgery) patients undergoing colonic surgery under general anesthesia + epidural analgesia.

This study will compare a group of patients monitored by the classical monitoring (with anesthesia/analgesia guided by these classical parameters: heart rate, blood pressure; Control "C" group; no BIS, no NoL) to a group of patients monitored by the same classical monitoring implemented with the NoL/BIS indices (with analgesia/anesthesia guided by these 2 indices; Monitoring "M" group).

The primary objective of the study will be the total consumption of desflurane that is expected to be significantly reduced in the M group. Secondary objectives will be evaluating safety and side effects of anesthesia and opioids and we expect a reduction of the following parameters: time for awakening from anesthesia, time for extubation, time for transfer to PACU, intraoperative opioid consumption, opioid consumption in PACU and for 48h, time for readiness for discharge from PACU, incidence of adverse effects such as: nausea-vomiting / sedation / respiratory depression / itching / dizziness / cognitive dysfunction in PACU and for 48h, satisfaction of the patients at 24 and 48hs, pain scores at rest and at mobilization in PACU, at 24h and 48h. Quality of postoperative recovery after surgery and treatment satisfaction are also expected to be higher in the M group than in the C group.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 60
• Est. completion date: December 2018
• Est. primary completion date: September 2018
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• ASA status I, II or III

• Patients aged 18 years

• Colo-rectal surgery

• Duration and type of surgery requiring an epidural analgesia via an epidural catheter placed prior the general anesthesia induction and an arterial line placed after induction of general anesthesia (classical management of ERAS program patients in our center)

Exclusion Criteria:

• chronic arhythmic condition

• chronic pain

• Adverse events prompting termination of protocol:

• Unexpected difficult airway requesting excessive, possibly painful airway manipulations.

• Unexpected surgical complications requiring strong haemodynamic support (transfusions, volume challenges, vasopressors, inotropic drugs)

Related Conditions & MeSH terms

• Anesthesia
• Pain

Intervention

Device:
• BIS index/NoL index
Remifentanil i.v. infusion will be run between 0.03 and 0.15 mcg/kg/min and boluses (0.4mcg/kg) will be given to keep a NoL index between 10-20. Once intubated, the maintenance of anesthesia will be achieved with: desflurane set at 1 MAC to start, then adapted to the BIS between 45-55.
• Variation of baseline mean arterial pressure
Remifentanil i.v. infusion will be run between 0.03 and 0.15 mcg/kg/min and boluses (0.4mcg/kg) will be given to keep a baseline mean arterial pressure between 10% of variation. Once intubated, the maintenance of anesthesia will be achieved with: desflurane set at 1 MAC to start, then ajusted to 0.8 MAC.

Locations

Country	Name	City	State
Canada	Hopital Maisonneuve Rosemont, CIUSSS de l'Est de l'Ile de Montreal	Montreal	Quebec

Sponsors (3)

Lead Sponsor	Collaborator
Maisonneuve-Rosemont Hospital	Canadian Anesthesiologists' Society, Medasense Biometrics Ltd

Country where clinical trial is conducted

Canada, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Total desflurane consumption	Total consumption and absorption in ml/kg/h of desflurane in group C versus group M	10 hours
Secondary	Hourly desflurane consumption	Consumption and absorption of desflurane in ml/kg/h for each hour of surgery. These data are given by the Drager Perseus A500 ventilator per second during the surgery.	10 hours
Secondary	Total remifentanil consumption mcg/h	Total consumption of i.v. remifentanil during surgery and for each hour of surgery	10 hours
Secondary	Hypotensive events	Total number of hypotensive events during surgery defined as mean blood pressure below 10% of baseline	10 hours
Secondary	Total phenylephrine consumption mcg/h	Total doses of intraoperative infused i.v. phenylephrine and doses per hour	10 hours
Secondary	Emergence time (seconds)	Time for awakening (eyes opening) at the end of the surgery, time for extubation, time for transfer to the PACU in seconds	30 min
Secondary	Acute pain (NRS scores on scale from 0 to 10)	NRS scale pain score at rest	48 hours postoperatively
Secondary	Analgesic requirement (total ml of epidural solution consumption)	cumulative dose over 48hs	48 hours postoperatively
Secondary	Nausea and vomiting	on Nausea and vomiting scale from 0 to 4, cumulative scores over 48hours	48 hours postoperatively
Secondary	Postoperative sedation	On POSS (postoperative sedation score) scale from 0 to 5, cumulative over 48 hours	48 hours postoperatively
Secondary	Postoperative respiratory depression	yes or no (1 or 0) for 48 hours	48 hours postoperatively
Secondary	PACU discharge time in minutes	Time for readiness for PACU discharge based on Aldrete scores superior to 9.	3 hours
Secondary	Postoperative cognitive dysfunction	Assessment of perioperative cognitive function using the classical MMSE scores over 5 days	5 days postoperatively
Secondary	Postoperative delirium	Assessment of perioperative Delirium with NuDESC score over 5 days after surgery	5 days postoperatively
Secondary	Postoperative analgesia hydromorphone rescue	Total hydromorphone rescue doses for 5 days, and total epidural doses in ml as continuous infusion + boluses (PCEA)	5 days postoperatively
Secondary	Recovery after surgery score on scale QOR15 (scale 0 to 150)	Patients' perceived quality of recovery from anesthesia with QoR-15	5 days postoperatively
Secondary	Postoperative chronic pain (score 0 to 10)	Presence and severity of persistent postoperative pain with DN4 questionnaires	6 months postoperatively
Secondary	Postoperative chronic pain (scale 0 to 60)	Presence and severity of persistent postoperative pain SF-MPQ questionnaires	6 months postoperatively
Secondary	Mortality	Rate of hospital mortality up to 6 months following surgery	6 months postoperatively
Secondary	Readmission	Rate of hospital readmission up to 6 months following surgery	6 months postoperatively
Secondary	POCD/POD related inflammatory cytokines	Blood sample will be drawn and cytokines related to POCD/POD will be measured	24h postoperatively