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The Effectiveness of the Addition of Dexmedetomidine to Analgesia for Ankle Surgery.

5. marts 2019 opdateret af: University Health Network, Toronto

The Analgesic Efficacy of Dexmedetomidine as a Local Anesthetic Adjunct in Ankle Blocks for Forefoot Surgery. A Dose Ranging Study.

Forefoot surgeries involve a relatively short operation usually completed in 1 - 1½ hours, with patients generally being allowed to go home on the same day. Despite this, post-surgery pain is often severe and a delay in the discharge of patients due to difficulty with pain control after the surgery is common.

Performing nerve blocks in association with sedation is the preferred way to provide pain relief and offers important benefits for foot surgeries. With nerve blocks, the requirement for oral painkillers and their associated side effects is reduced. Increasing the duration of local anesthetic action is helpful as it increases the time of pain relief, allowing for a smoother transition to oral pain medications, earlier discharge, and faster recovery.

Recently, Precedex has been considered for its usefulness in prolonging the pain relief produced by nerve blocks. The identified benefits of this particular use include reducing post-surgical pain medications requirements, reducing the incidence of nausea and vomiting, reducing the incidence of sedation from such medication, and diminishing the incidence of respiratory depression (inadequate breathing). Two small studies have also shown that adding dexmedetomidine to nerve block solution results in prolonging pain relief.

The purpose of the study is to examine several doses of dexmedetomidine combined with local anesthetic drugs and determine the best combination for prolonging pain relief, while minimizing potential side effects.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

12

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • Ontario
      • Toronto, Ontario, Canada, M5T 2S8
        • Toronto Western Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 65 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • English Speaking
  • American Society of Anesthesiologists (ASA) I-III patients
  • Ages 18-65
  • Body Mass Index (BMI) ≤ 38 kg/m2

Exclusion Criteria:

  • Preexisting neurological deficits or peripheral neuropathy in the distribution of the sciatic or femoral nerves
  • Known coronary heart disease, congestive heart failure, cardiomyopathies, or arrhythmias
  • Baseline line heart rate < 60 Beats Per Minute (BPM) or baseline systolic blood pressure < 100 mm Hg
  • Medications that reduce heart rate
  • Known liver or renal dysfunction or existing diseases affecting these organs
  • Local infection
  • Contraindication to regional anesthesia
  • Chronic pain disorders
  • History of use of over 30mg oxycodone or equivalent per day
  • Contraindication to a component of multi-modal analgesia
  • Allergy to local anesthetics or dexmedetomidine
  • History of significant psychiatric conditions that may affect patient assessment
  • Pregnancy
  • Inability to provide informed consent
  • Patient refusal

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Tredobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Dex 0.5
Ropivacaine and Lidocaine plus Dexmedetomidine (0.5mg/kg) plus Normal Saline
An anesthetic concoction of 2% Lidocaine, 1% Ropivacaine, and Dexmedetomidine diluted solution will be provided via a series of anesthetic injections related to the ankle block procedure
Andre navne:
  • Precedex
Eksperimentel: Dex 1.0
Ropivacaine and Lidocaine plus Dexmedetomidine (1.0mg/kg) plus Normal Saline
An anesthetic concoction of 2% Lidocaine, 1% Ropivacaine, and Dexmedetomidine diluted solution will be provided via a series of anesthetic injections related to the ankle block procedure
Andre navne:
  • Precedex

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Duration of Analgesia
Tidsramme: patients will be followed for two weeks
Patients will be asked about the duration of their analgesia by asking when they first felt pain at the surgical site. Patients will be asked prior to discharge, and routinely during specified phone calls until analgesia wear off
patients will be followed for two weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Requirements for pain medications; complications
Tidsramme: weekly for up to 2 weeks
Patients will be called at 24 hours, 7 days and 14 days and asked to describe their pain levels, the requirements for pain medication, and any complications that may have arisen post-operatively.
weekly for up to 2 weeks

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. april 2014

Primær færdiggørelse (Faktiske)

4. januar 2019

Studieafslutning (Faktiske)

4. januar 2019

Datoer for studieregistrering

Først indsendt

19. juni 2014

Først indsendt, der opfyldte QC-kriterier

19. juni 2014

Først opslået (Skøn)

23. juni 2014

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

7. marts 2019

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. marts 2019

Sidst verificeret

1. november 2017

Mere information

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Anæstesi

Kliniske forsøg med Dexmedetomidine

Abonner