Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Clinical Tolerance of an Intraparotid Injection of Bupivacaine, Combined With Dexamethasone, After Parotidectomy for Benign Tumor (PAROCAINE)

4. september 2026 opdateret af: Centre Hospitalier Universitaire de Nīmes

Evaluation of the Clinical Tolerance of an Intraparotid Injection of Bupivacaine, Combined With Dexamethasone, After Parotidectomy for Benign Tumor - A Single-center Prospective Cohort Study.

There has been a paradigm shift toward less invasive surgical techniques for parotidectomies, primarily to mitigate post-surgical complications. However, preserving more parotid tissue than with traditional methods can lead to an increased incidence of salivary fistulas and sialoceles after parotidectomy. The incidence of sialoceles varies considerably from 4.9% to 39%, while salivary fistula rates after parotidectomy range from 1% to 21%. Other wound complications, such as wound dehiscence, inflammation, and infection, can also occur, typically within the first month following surgery. No preventive technique has yet demonstrated clear efficacy or superiority in clinical practice.

Bupivacaine is an amino-amide commonly used for local anesthesia. With its long-acting anesthetic effects, bupivacaine blocks the autonomic pathways (parasympathetic and sympathetic), then the sensory pathways, and finally the motor pathways. By providing prolonged blockade of the parasympathetic nerve pathways that induce salivary secretion, bupivacaine injected into the parotid tissue during surgery could be a potentially effective prophylactic agent for preventing salivary fistulas after parotidectomy. Certain adjuvants can be used locally in combination with bupivacaine to prolong the duration of nerve blocks and improve postoperative pain management. Dexamethasone is the most effective adjuvant to long-acting local anesthetics. This combination is widely used in routine practice.

Due to its sustained blockade of parasympathetic nerve fibers, intraparotid bupivacaine, combined with local dexamethasone, could be an effective tool for reducing various postoperative complications, including sialoceles and salivary fistulas, after partial parotidectomy. It could also play a major role in postoperative analgesia. Although bupivacaine is commonly used in surgical practice, there are no data regarding the injection of bupivacaine combined with dexamethasone into the parotid tissue to prevent salivary complications after partial parotidectomy. Therefore, the safety of its use when injected specifically into the parotid tissue has never been evaluated.

The aim of this pilot study is to assess the tolerability of intraparotid injection of bupivacaine combined with a local injection of dexamethasone after partial parotidectomy for a benign tumor.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

10

Fase

  • Tidlig fase 1

Kontakter og lokationer

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

Studiekontakt

Studiesteder

      • Nîmes, Frankrig, 30000
        • Rekruttering
        • Centre Hospitalier de Nimes
        • Kontakt:
        • Ledende efterforsker:
          • Benjamin Lallemant

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

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Validated surgical indication for partial parotidectomy for parotid tumor.
  • The patient must have given their free and informed consent and signed the consent form
  • The patient must be a member or beneficiary of a health insurance plan

Exclusion Criteria:

  • The subject is in a period of exclusion determined by a previous study
  • The patient is under safeguard of justice or state guardianship
  • History of allergic reaction to amino-amide-type local anesthetics.
  • Severe neurological history (epilepsy, peripheral neuropathies).
  • High-risk cardiovascular history (severe hypertension, arrhythmias, complete or incomplete heart block, heart failure, coronary artery disease, treatment with type 2 antiarrhythmic drugs).
  • Severe liver or kidney disease (severe liver failure or severe kidney failure).
  • Acidosis, sepsis.
  • Pregnant or breastfeeding patient.
  • Patient unable to give informed consent.
  • Patient for whom it is impossible to provide informed consent.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Patients who undergoing partial parotidectomy
  • 20 ml of 0.5% bupivacaine (5 mg/mL), i.e., a dose of 100 mg;
  • 0.5 ml of dexamethasone (4 mg/mL), i.e., a dose of 2 mg.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Local pain post-injection
Tidsramme: Day 15
0-10 visual analog scale
Day 15
Local intolerance post-injection
Tidsramme: Day 15
Redness, edema, warmth, inflammation: Yes/no
Day 15
Local neurological disturbances post-injection
Tidsramme: Day 15
Paresthesia, hypoesthesia: Yes/no
Day 15
Allergic reactions post-injection
Tidsramme: Day 15
Rash, edema, urticaria: Yes/no
Day 15
Heart rate
Tidsramme: Day 15
beats per minutes
Day 15
Blood pressure
Tidsramme: Day 15
mm Hg
Day 15
Loss of consciousness
Tidsramme: Day 15
Yes/no
Day 15
Seizures
Tidsramme: Day 15
Yes/no
Day 15
Nausea and vomiting
Tidsramme: Day 15
Yes/no
Day 15
Blood gluose level
Tidsramme: Day 15
mmol/L
Day 15
Post-parotidectomy facial nerve function alteration post-injection
Tidsramme: Day 15
Facial paralysis or facial nerve damage: Yes/no
Day 15
Injection site damage
Tidsramme: Day 15
Hematoma or infection: Yes/no
Day 15

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Postoperative pain
Tidsramme: Day 0
Measure on a 0-10 visual analog scale
Day 0
Postoperative pain
Tidsramme: Day 1
Measure on a 0-10 visual analog scale
Day 1
Postoperative pain
Tidsramme: Day 2
Measure on a 0-10 visual analog scale
Day 2
Postoperative pain
Tidsramme: Day 4
Measure on a 0-10 visual analog scale
Day 4
Postoperative pain
Tidsramme: Day 6
Measure on a 0-10 visual analog scale
Day 6
Postoperative pain
Tidsramme: Day 9
Measure on a 0-10 visual analog scale
Day 9
Postoperative pain
Tidsramme: Day 12
Measure on a 0-10 visual analog scale
Day 12
Postoperative pain
Tidsramme: Day 15
Measure on a 0-10 visual analog scale
Day 15
Prevalence of salivary fistulas or sialomas
Tidsramme: Day 15
Yes/no
Day 15
wound dehiscence
Tidsramme: Day 15
yes/no
Day 15
inflammation of wound
Tidsramme: Day 15
Yes/no
Day 15
infection of wound
Tidsramme: Day 15
Yes/no
Day 15
Feasibility of bupivacaine/dexamethasone
Tidsramme: Day 0
Successful administion of bupivacaine/dexamethasone injection: Yes/no
Day 0

Samarbejdspartnere og efterforskere

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

Sponsor

Efterforskere

  • Ledende efterforsker: Benjamin Lallemant, Centre Hospitalier Universitaire de Nîmes

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 (Faktiske)

18. maj 2026

Primær færdiggørelse (Anslået)

1. juni 2027

Studieafslutning (Anslået)

1. juni 2027

Datoer for studieregistrering

Først indsendt

4. september 2026

Først indsendt, der opfyldte QC-kriterier

4. september 2026

Først opslået (Faktiske)

10. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

10. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

4. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • LOCAL/2025/BL01
  • 2025 (U.S. NIH-bevilling/kontrakt: Faculty of Social Sciences Scientific Grant at the University of Gdańsk)
  • 2025-524358-32-00 (Anden identifikator: CTIS)

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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 .