A Pilot Trial of Disposable Nitrous Oxide Canisters in Providing Pain Control During Burn Dressing Changes

Trial statusRecruiting
Trial phaseEarly Phase 1
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Manitoba

About this trial

Improvements in burn care have resulted in increased survival. Despite these improved outcomes one of the leading challenges of burn care remains providing adequate analgesia during routine wound care and dressing changes. The traditional use of narcotics is challenging as the therapeutic window between analgesia and suppression of breathing becomes narrow with the intense pain and high doses of narcotics needed for dressing changes.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

adult burn patients admitted to the Health Sciences Centre

total body surface area burned of 5-20%

Disqualifiers

admitted to intensive care unit

unable to participate in the measurement outcomes (sedated, cognitively impaired, unable to understand English or visually impaired)

medical condition that precludes using nitrous oxide (respiratory disease and significant cardiovascular disease 5).

pregnant

Trial design

Design model

Crossover

Treatments tested in this trial

  • Nitrous Oxide Inhalant Product

    Drug

    Nitrous Oxide Inhalant Product

  • Placebo

    Drug

    Inactive comparator

Treatment groups

30 Participants
are divided into 2 treatment groups
Group A: Nitrous Oxide Inhalant ProductExperimental treatment 1 intervention
Group B: PlaceboPlacebo comparator 1 intervention

Trial outcomes

Primary outcomes

1

Burn Specific Pain Anxiety Scale

The experience of the dressing change for the patient will also be assessed using the Burn specific pain and anxiety scale which consists of: 1. Worry about wound-healing 2. Fear of procedural pain 3. Fear of losing control because of pain 4. Fear of pain during dressing change 5. Pain severity 6. Keyed up because of enduring pain 7. Concern about wound healing 8. Preoccupied with pain 9. Tension during dressing change Responses for each item are on a visual analogue scale ranging from "least" to "most". The response is normalized to a value between 0 and 1, representing the location selected on the line, divided by the total length of the line. The responses will be used to examine a possible relationship procedural and non procedural pain between the nurse and the patient.

Time frame
1 hour before dressing change
2

Burn Specific Pain Anxiety Scale

The experience of the dressing change for the patient will also be assessed using the Burn specific pain and anxiety scale which consists of: 1. Worry about wound-healing 2. Fear of procedural pain 3. Fear of losing control because of pain 4. Fear of pain during dressing change 5. Pain severity 6. Keyed up because of enduring pain 7. Concern about wound healing 8. Preoccupied with pain 9. Tension during dressing change Responses for each item are on a visual analogue scale ranging from "least" to "most". The response is normalized to a value between 0 and 1, representing the location selected on the line, divided by the total length of the line. The responses will be used to examine a possible relationship procedural and non procedural pain between the nurse and the patient.

Time frame
during dressing change
3

Burn Specific Pain Anxiety Scale

The experience of the dressing change for the patient will also be assessed using the Burn specific pain and anxiety scale which consists of: 1. Worry about wound-healing 2. Fear of procedural pain 3. Fear of losing control because of pain 4. Fear of pain during dressing change 5. Pain severity 6. Keyed up because of enduring pain 7. Concern about wound healing 8. Preoccupied with pain 9. Tension during dressing change Responses for each item are on a visual analogue scale ranging from "least" to "most". The response is normalized to a value between 0 and 1, representing the location selected on the line, divided by the total length of the line. The responses will be used to examine a possible relationship procedural and non procedural pain between the nurse and the patient.

Time frame
1 hour after dressing change
4

Visual Analogue Scale for pain

The items are scored on a 100 mm visual analog line with two reference points given values of 0 ("No pain") and 100 ("worst possible pain").

Time frame
1 hour before dressing change

Secondary outcomes

1

Anxiolytic given

The amount of anxiolytic given one hour prior to the dressing change.

Time frame
1 hour before dressing change
2

Anxiolytic given

The amount of anxiolytic given during the dressing change.

Time frame
during dressing change
3

Anxiolytic given

The amount of anxiolytic given one hour after the dressing change.

Time frame
1 hour after dressing change

Other outcomes

1

Systolic blood pressure

After administration of inhaled nitrous oxide, systolic blood pressure will be measured.

Time frame
5 minute mark during burn dressing change
2

Systolic blood pressure

After administration of inhaled nitrous oxide, systolic blood pressure will be measured.

Time frame
10 minute mark during burn dressing change
3

Systolic blood pressure

After administration of inhaled nitrous oxide, systolic blood pressure will be measured.

Time frame
15 minute mark during burn dressing change
4

Systolic blood pressure

After administration of inhaled nitrous oxide, systolic blood pressure will be measured.

Time frame
20 minute mark during burn dressing change

Sponsors and contacts

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