Impact of NOL Intraoperative Guided Fentanyl Analgesia vs SCC for Elective Major Abdominal Surgery

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

95 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-11-01

Study Completion Date

2021-06-30

Brief Summary

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Recently, a newly developed index, the Nociceptive Level (NOL) index, was validated and showed superiority over heart rate and blood pressure for recognition and grading of intense and mild nociceptive stimuli during surgery under general anesthesia.

We hypothesize that compared with standard management, NOL-guided anesthesia will lead to reduced postoperative pain scores, and during anesthesia, to increased hemodynamic stability.

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Detailed Description

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Uncontrolled postoperative pain may result in significant clinical, psychological, and socioeconomics consequences. Not only does inadequate pain management following surgery result in increased morbidity and mortality but it also may delay recovery, result in unanticipated readmissions, decrease patient satisfaction, and lead to chronic persistent postsurgical pain. Pain is multifactorial in nature and understanding both the complexity of pain and its side effects is imperative to achieve a successful surgical outcome.

Nociception/analgesia are currently assessed by monitoring changes in heart rate (HR), blood pressure (BP), and other indirect parameters which are not sensitive or specific to nociception. As a result, the patient may be given insufficient analgesia which can promote postoperative pain, or excessive analgesia which can result in overdosing and related complications.

Conditions

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Anesthesia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Nociceptive-Level (NOL)

Analgesic component of anesthesia (fentanyl) will be guided using NOL

Group Type EXPERIMENTAL

PMD-200

Intervention Type DEVICE

The PMD-200 system is comprised of a console and designated finger probe with 4 sensors. The Sensors are Photoplethysmography (PPG) Galvanic Skin Response (GSR), Accelerometer (ACC) and Thermistor (TMP)

Standard Clinical Care (SCC)

Standard Clinical Care guided fentanyl administration

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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PMD-200

The PMD-200 system is comprised of a console and designated finger probe with 4 sensors. The Sensors are Photoplethysmography (PPG) Galvanic Skin Response (GSR), Accelerometer (ACC) and Thermistor (TMP)

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Age \> 18 years old.
2. ASA I-III
3. Elective major laparoscopic abdominal surgical, urologic or gynecologic procedures under general anesthesia.
4. Patient able to provide informed consent

Exclusion Criteria

1. Use of any type of anesthesia other than general anesthesia (neuraxial, epidural analgesia or local regional anesthesia, e.g. transversus abdominal plane block)
2. Patients with rhythm other than sinus cardiac rhythm, implanted pacemakers, α2-adrenergic agonists and β1-adrenergic antagonists
3. Pregnancy/lactation
4. Central nervous system disorder (neurologic/head trauma/uncontrolled epileptic seizures)
5. Abuse of alcohol or illicit drugs within the last 6 months
6. Chronic pain conditions - pain in 1 or more anatomic regions that persists or recurs for longer than 3 months and is associated with significant emotional distress or significant functional disability.
7. Opioid tolerant - if for at least 1 week the patient has been receiving oral morphine 60 mg/day; transdermal fentanyl 25 mcg/hour; oral hydromorphone 8 mg/day; oral oxymorphone 25 mg/day; or an equianalgesic dose of any other opioid
8. Chronic use of psychoactive drugs within 90 days prior to surgery
9. Allergy or intolerance to any of the study drugs
10. History of severe cardiac arrhythmias within the last 12 months

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes