The 50:50 Nitrous Oxide vs 2% Lidocaine Challenge
The 50:50 Nitrous Oxide Challenge: A Prospective Randomised Trial - Needle, Meet Your Match
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Ana Cvetkovic, MD,PhD
- Telefonnummer: +381 11 2067 100
- E-mail: ana.cvetkovic@ncrc.ac.rs
Studiesteder
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Savski Venac
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Belgrade, Savski Venac, Serbien, 11000
- Institute for Oncology and Radiology of Serbia
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Subjects who have not previously received Nitrous Oxide.
- Subjects of both sexes, aged between 18 and 65 inclusive.
- Subjects who have signed informed consent with full disclosure; no study-related procedure may begin until the subject signs the consent form.
Exclusion Criteria:
- Infection at the planned puncture site.
- Pregnancy.
- Intracranial hypertension.
- Vitamin B12 deficiency.
- Hemodynamic instability.
- BMI over 35.
- Glasgow Coma Scale (GCS) score less than 15.
- Presence of chronic pain.
- Neurological disorders.
- Hematologic disorders.
- Systemic or intrathecal methotrexate therapy
- More than two attempts at venous puncture (Subject Withdrawal Criterion).
- Subject experienced an adverse event requiring early discontinuation (Subject Withdrawal Criterion).
- Withdrawal of consent by the subject (Subject Withdrawal Criterion)
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Eksperimentel: Nitrous Oxide Group
This will be the experimental group in which the patients will receive a mixture of gases to assess the efficacy of the treatment compared to the control.
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After placing the patient in the appropriate supination + Trendelenburg position, the operative field (neck and subclavian region) is prepared using antiseptic measures.Five minutes before needle insertion, a mask connected to a 50:50 Nitrous Oxide/Oxygen cylinder with a flow rate of 6 liters per minute is placed on the patient's face and held by the patient.
The mask has a valve that opens only when the patient creates negative pressure during inhalation.The patient is instructed to breathe spontaneously; the mask is removed once the catheter is inserted into the target vein or after cessation of painful stimulation.
Andre navne:
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Aktiv komparator: Lidocaine 2%
The control group receiving the standard of care for this intervention.
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After placing the patient in the appropriate supination + Trendelenburg position, the operative field (neck and subclavian region) is prepared using antiseptic measures.
Then, under ultrasound control, the most favorable central vein for puncture is determined (v.
jugularis interna or v. subclavia) and a 25-gauge needle is used to infiltrate the skin and subcutaneous tissue above the selected vein with local anesthetic.
Five minutes after infiltration, puncture of the selected vein is performed using the Seldinger technique.
Continuous communication with the patient is maintained throughout the procedure.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Pain Intensity During Needle Insertion
Tidsramme: At the time of needle insertion
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Assessed using a standard Numeric Rating Scale (NRS) ranging from 0 (no pain) to 10 (worst imaginable pain).
Higher scores indicate greater pain intensity.
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At the time of needle insertion
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Pain Intensity During Catheter Placement
Tidsramme: During catheter placement
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Assessed using a standard Numeric Rating Scale (NRS) ranging from 0 (no pain) to 10 (worst imaginable pain).
Higher scores indicate greater pain intensity.
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During catheter placement
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Pain Intensity Post-Intervention
Tidsramme: 2 minutes after gas inhalation (Treatment 1) or 2 minutes post-intervention (Treatment 2)
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Assessed using a standard Numeric Rating Scale (NRS) ranging from 0 (no pain) to 10 (worst imaginable pain).
Higher scores indicate greater pain intensity.
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2 minutes after gas inhalation (Treatment 1) or 2 minutes post-intervention (Treatment 2)
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Patient Anxiety Score
Tidsramme: Post-intervention (at the conclusion of the central venous catheterization procedure)
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Assessed using a standard Numeric Rating Scale (NRS) ranging from 0 (no anxiety) to 10 (worst imaginable anxiety).
Higher scores indicate greater anxiety levels.
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Post-intervention (at the conclusion of the central venous catheterization procedure)
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Patient Satisfaction Score
Tidsramme: Post-intervention (at the conclusion of the central venous catheterization procedure)
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Assessed using a Numeric Rating Scale (NRS) where patients rate their overall satisfaction with the anesthetic method.
The scale ranges from 0 (completely unsatisfied) to 4 (completely satisfied).
Higher scores indicate greater satisfaction.
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Post-intervention (at the conclusion of the central venous catheterization procedure)
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Incidence of Treatment-Related Adverse Events
Tidsramme: From the start of the intervention through 30 minutes post-procedure
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Percentage of participants experiencing specific adverse events, including nausea/vomiting, unpleasant dreams, paresthesias, dizziness, and euphoria, as recorded by subjective patient reports.
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From the start of the intervention through 30 minutes post-procedure
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Ana Cvetković, MD, PhD, Institute for Oncology and Radiology of Serbia
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 01-1/2025/1264
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Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
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