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Comparison of Dexmedetomidine Versus Dexamethasone as Adjuvants to Bupivacaine in Ultrasound-Guided Erector Spinae Plane Block for Acute Pain Management in Patients With Traumatic Rib Fractures

14. september 2026 opdateret af: Mohamed Elsayed Ali Ibraheim, Assiut University

Comparison of Dexmedetomidine Versus Dexamethasone as Adjuvants to Bupivacaine in Ultrasound-Guided Erector Spinae Plane Block for Acute Pain Management in Patients With Traumatic Rib Fractures: A Prospective Randomized Double-Blind Controlled Study

Traumatic rib fractures cause severe chest wall pain that can impair normal breathing, coughing, and lung function. While systemic opioids are commonly used to treat traumatic pain, their side effects, such as sedation and respiratory depression, can complicate recovery. Regional nerve blocks like the ultrasound-guided erector spinae plane block (ESPB) offer targeted pain relief while minimizing opioid requirements.

The purpose of this clinical trial is to compare the analgesic efficacy and respiratory outcomes of adding dexmedetomidine versus dexamethasone to bupivacaine during an ultrasound-guided ESPB in emergency department patients with acute traumatic rib fractures.

Participants aged 18 to 65 years presenting within 24 hours of rib injury will be randomly assigned to one of two groups:

  • Dexmedetomidine Group: Receives an ultrasound-guided ESPB with bupivacaine plus dexmedetomidine.
  • Dexamethasone Group: Receives an ultrasound-guided ESPB with bupivacaine plus dexamethasone.

The primary outcome is the duration of analgesia, measured as the time to the first request for rescue pain medication. Secondary outcomes include pain scores at rest and during coughing/deep breathing, total 24-hour opioid consumption, diaphragmatic motion evaluated by ultrasound, respiratory recovery, and the incidence of adverse events over a 24-hour follow-up period.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

100

Fase

  • Fase 2
  • Fase 3

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

  • Voksen
  • Ældre voksen

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Beskrivelse

Inclusion Criteria:

  • Adult patients aged 18 to 65 years
  • Both sexes
  • American Society of Anesthesiologists (ASA) physical status I-II
  • Acute traumatic rib fractures confirmed by appropriate imaging
  • Flail-chest patients who are hemodynamically and respiratory stable to undergo erector spinae plane block (ESPB) and reliable assessment
  • Spontaneously breathing patients or patients receiving supplemental oxygen/non-invasive respiratory support without an immediate indication for intubation
  • Ability to report pain using a Numeric Rating Scale (NRS)
  • Presentation within 24 hours of trauma
  • Ability to provide written informed consent

Exclusion Criteria:

  • Patient refusal to participate
  • Immediate need for endotracheal intubation or invasive mechanical ventilation prior to randomization or block placement
  • Hemodynamic instability requiring immediate resuscitation or vasopressor support precluding safe regional anesthesia
  • Cardiorespiratory arrest or peri-arrest status
  • Severe associated traumatic brain injury or other injuries preventing reliable clinical evaluation
  • Major associated injury requiring immediate emergency operative or interventional procedures that prevent protocol completion
  • Coagulopathy or any contraindication to regional anesthesia
  • Local infection at the anticipated block needle insertion site
  • Known allergy to amide local anesthetics, dexmedetomidine, or dexamethasone
  • Significant bradyarrhythmia, high-grade atrioventricular block, or contraindication to dexmedetomidine
  • Chronic opioid consumption or chronic pain syndromes requiring regular analgesic therapy
  • Prior regional anesthesia performed for the current trauma
  • Inability to cooperate with the procedure or pain evaluation

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: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Dexmedetomidine Group
Participants receive an ultrasound-guided erector spinae plane block (ESPB) with bupivacaine plus dexmedetomidine (0.5 mcg/kg) following local skin infiltration with 5 mL of 2% lidocaine.
Ultrasound-guided thoracic erector spinae plane block (ESPB) administered deep to the erector spinae muscle and superficial to the transverse process (typically T4-T6) using bupivacaine supplemented with dexmedetomidine (0.5 mcg/kg) following local skin infiltration with 5 mL of 2% lidocaine.
Aktiv komparator: Dexamethasone Group
Participants receive an ultrasound-guided erector spinae plane block (ESPB) with bupivacaine plus dexamethasone (4 mg) following local skin infiltration with 5 mL of 2% lidocaine.
Ultrasound-guided thoracic erector spinae plane block (ESPB) administered deep to the erector spinae muscle and superficial to the transverse process (typically T4-T6) using bupivacaine supplemented with dexamethasone (4 mg) following local skin infiltration with 5 mL of 2% lidocaine.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Time to First Rescue Analgesic Request
Tidsramme: Up to 24 hours post-block
Time (in minutes) from the completion of the ultrasound-guided erector spinae plane block until the patient's first request for rescue analgesia (or when the Numeric Rating Scale score is 4 or greater).
Up to 24 hours post-block

Samarbejdspartnere og efterforskere

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Sponsor

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 (Anslået)

1. oktober 2026

Primær færdiggørelse (Anslået)

1. oktober 2027

Studieafslutning (Anslået)

1. november 2027

Datoer for studieregistrering

Først indsendt

14. september 2026

Først indsendt, der opfyldte QC-kriterier

14. september 2026

Først opslået (Faktiske)

18. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

18. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

14. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • Dexmedetomidine vs Dex in ESPB

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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