- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04078113
Stimulation and Validation of the Pupillary Dilation for the Detection of Pain in Analgosedated Patients Under Mechanically Ventilation in Intensive Care Unit
Stimulation Anda Validation of the Pupillary Dilation for the Detection of Pain in Analgosedated Patients Under Mechanically in Intensive Care Unit
This project has 2 phases. Phase 1: diagnostic test study, to evaluate the efficacy of the variation of pupillary size (PDR) to detect pain in ICU patients regarding to Behavioural Pain Scale (BPS) and ESCID (Conductual Scale Pain Index). Phase 2: controlled and aleatorized clinical trial to evaluate efficacy in PDR monitoring after painful assessed minimum stimulus with the best diagnostic efficiency on phase 1, as a need of analgesia indicator tool.
The sample will be patients over 18 years, sedated and mechanically ventilated, with an initial BPS of 3, RASS between -1 and -4, not able not to communicate , with inform consent signed. Exclusion criteria will be: ophtalmologic pathology and administration of drugs interfering pupillary reflexes. Measurements before/during pain/non-pain situations, aspiration of secretions and calibrated intensity stimulus through the pupilometer Algiscan. The investigators will study association between pain according to BPS/ESCID and pupillary dilatation according to pupillometry and percentage of patients with pain and preanalgesia according to pupillometry and standard clinical practice.
Study Overview
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Álava
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Vitoria-Gasteiz, Álava, Spain, 01009
- Araba University Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients over 18 years.
- Analgosedated patients under mechanical ventilation.
- Unable to communicate (verbal or motor).
- Patients with initial BPS of 3, and RASS from -1 to -4.
- Familiar prior informed consent.
Exclusion Criteria:
- Patients treated with muscle relaxants.
- Severe Critical Polyneuropathy.
- Pupillary reflex affectation in diabetic patients (diabetic papillopathy,glaucomatous optic neuropathy) or any other pathologies like Adie´s Syndrome, Argyl-Robertson pupil.
- Patients with tansmisible ocular infections.
- Patients with possible injury of the third carnial nerve (Horner´s syndrome) due to injury to the brainstem, cervical cord, cancer of the upper lobe the lung, dissection of the carotid and/or cluster headache.
- Acute cerbrovascular conditions with Glasgow Coma Scale less than 6, or increased intracranial pressure, or pontine base infarction.
- Drugs that interfere with the pupillary reflex (clonidine, dexmedetomidine, metoclopramide, tramadol, droperidol, ketamine, nitrous oxide).
- Patients under metoclopramide, if given 10 minutes prior the measurement of the pupillary reflex (PDR).
- Patients during the first 24 hours after Cardiac Arrest (CRP).
- Severe unestable comorbidity with doses of norepinephrine> 0.6 microg/kg/min and/or dobutamine>10 microg/kg/min or drenalin any doses.
- Patients with untreated pheochromocytomas.
- Refuse to participate in the trial.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Experimental group
Every patient will be subjected to a measured stimulus with a power selected in phase 1 (X mA) and pupillary dilatation will be measured by pupillometry.
In those patients showing pupillary size variation over the limit for insufficient analgesia estimated in phase 1 for tracheal suction, additional analgesia will be provided before tracheal suction.
In those patients without pain detected by pupillometry, additional anlagesia won´t be provided.
In both cases Pupillometry, BPS and ESCID will be measured during tracheal suction to determine whether the patient is in pain or not.
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Measurements of pupillary dilatation with pupillometer to administer or not analgesia
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No Intervention: Control group
Before tracheal suction and due to medical decision, analgesia following current clinical practice would be administered prophylactically. Pupillometry, BPS and ESCID will be measured during tracheal suction to determinate whether the patient is in pain or not. |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Propotion of patient with pain on experimental group versus control group
Time Frame: An average of 1 year
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To compare the proprtion of patients with pain according to Behavioral Pain Scale (BPS), pupillometry and Scale of Behaviour Indicators of Pain (escid)
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An average of 1 year
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Proportion of patient who require anesthesia on experimental group versus control group
Time Frame: An average of 1 year
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The proportion of patients who require anesthesia on experimental group (previous analgesia according to pupillometry during endotracheal aspiration) versus control group (previous analgesia according to standard clinical practice).
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An average of 1 year
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Ana Vallejo de la Cueva, Dr., Basque health System
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- PUPIPAIN
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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