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Pre-incisional Infiltration With Ropivacaine Plus Diprospan for Relieving Postoperative Pain After Laparoscopic Surgery

16. juni 2026 oppdatert av: Fang Luo, Beijing Tiantan Hospital

The Efficacy and Safety of Pre-incisional Infiltration With Ropivacaine Plus Diprospan in Patients Undergoing Laparoscopic Surgery: a Multi-center Randomized Controlled Trial.

Incisional infiltration is the simplest, safest, and most effective anesthesia method for preventing incision pain after laparoscopic surgery, but even using long-acting local anesthetics, the effectiveness of postoperative analgesia can only last for a relatively short period of time. Studies have shown that up to 80% of patients experience postoperative pain following laparoscopic surgery due to inflammation caused by surgical incisions and surrounding tissues, necessitating pharmacological relief. Inflammatory mediators released from the soft tissues around laparoscopic incisions not only significantly alters the chemical microenvironment at the peripheral terminals of nociceptors, directly inducing pain, but also sensitizes afferent fibers, contributing to peripheral sensitization.

Numerous studies have shown that glucocorticoids not only can achieve anti-inflammatory and analgesic effects by inhibiting inflammatory cytokines and inflammatory responses but also can prolong the duration of action of local anesthetics. Preemptive incisional infiltration using local anesthetics with corticosteroids which have potent local anti-inflammatory properties may play a key role in preventing or reducing postoperative pain. The objective of this trial is to determine whether preemptive incisional infiltration with ropivacaine plus diprospan is superior to ropivacaine alone in relieving postoperative pain for adults undergoing laparoscopic surgery. The investigators also compare the effects of the two intervention measures on postoperative pain management, patient safety, and recovery quality.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

150

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Kina
    • Beijing Municipality
      • Beijing, Beijing Municipality, Kina, 100070
        • Rekruttering
        • Beijing Tiantan Hospital
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  1. Patients scheduled for elective Laparoscopic Surgery for laparoscopic cholecystectomy, appendectomy, or hernia repair under general anesthesia;
  2. Ages 18 to 64 years old;
  3. American Society of Anesthesiologists (ASA) physical status of I-III;
  4. Patients must be able to understand nature and potential personal; consequences of the clinical trial and cooperation with follow-up investigations;
  5. signing of the informed consent form.

Exclusion Criteria:

  1. History of allergies to experimental drugs such as opioids or steroids;
  2. Alcohol abuse; Long term use of opioid drugs (exceeding 2 weeks or 3 days per week for more than 1 month); Suspected use of sedatives and analgesics;
  3. Use analgesic drugs within 24 hours before surgery;
  4. Patients undergoing steroid therapy;
  5. Serious neurological disorders, severe liver and kidney dysfunction, heart failure, etc;
  6. Unable to use pain assessment scale;
  7. Pregnant or lactating patients.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Firemannsrom

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: Pre-incisional infiltration with ropivacaine alone
Legemiddel: Pre-incisional infiltration with ropivacaine alone
Before the surgery, according to the surgeon's incision marking, the patients accept 30ml of 0.5% ropivacaine infiltrates the incision layer by layer (1ml subcutaneous infiltration at each location, 2ml full layer infiltration, total 3ml).
Eksperimentell: Pre-incisional infiltration with ropivacaine plus diprospan
Legemiddel: Pre-incisional infiltration with ropivacaine and diprospan
Before the surgery, according to the surgeon's incision marking, the patients accept 0.5ml of diprospan (1ml diprospan: Betamethasone Dipropionate 5mg and Betamethasone Sodium Phosphate 2mg) plus 15ml of 1% ropivacaine diluted with 0.9% saline to a total volume of 30ml infiltrates the incision layer by layer (1ml subcutaneous infiltration at each location, 2ml full layer infiltration, total 3ml).

Hva måler studien?

Primære resultatmål

Resultatmål
Tidsramme
Intravenous Morphine Equivalents of Rescue Analgesic Medications Within 48 Hours Postoperatively
Tidsramme: The postoperative period 48 hours
The postoperative period 48 hours

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Numerisk vurderingsskala i hvile (NRSr) 1 uke, 1 måned og 3 måneder postoperativt
Tidsramme: 7. postoperative dag, måned 1 og måned 3.
Den Numeriske Vurderingsskalaen (NRS) angir 0 som ingen smerter og 10 som de mest alvorlige smertene; poengsummer på 1-3 indikerer milde smerter, 4-6 betyr moderate smerter, og 7-10 betyr alvorlige smerter.
7. postoperative dag, måned 1 og måned 3.
Adverse events
Tidsramme: Within 72 hours postoperatively
Including local anesthetic poisoning, local hematoma, nausea and vomiting, itching, hypotension, arrhythmia, delirium, etc; Abnormal values in clinical laboratory tests, such as elevated blood glucose levels.
Within 72 hours postoperatively
Area under the curve (AUC) of the Numerical Rating Scale during movement (NRSm) within 0-72 hours postoperatively
Tidsramme: Data will be collected at 4、12、24、36 and 72 hours postoperatively
The Numeric Rating Scale (NRS) designates 0 as representing no pain and 10 as representing the most severe pain, scores of 1-3 indicate mild pain, 4-6 denote moderate pain, and 7-10 signify severe pain.
Data will be collected at 4、12、24、36 and 72 hours postoperatively
Patient Satisfaction Scale(PSS)
Tidsramme: Postoperative hours 4、12、24 and 48 hours
Patient Satisfaction Scale(PSS) on a scale ranging from 0 to 10, where 0 denotes "completely dissatisfied" and 10 signifies "extremely satisfied".
Postoperative hours 4、12、24 and 48 hours
Postoperative nausea and vomiting (PONV)
Tidsramme: Postoperatively within 48 hours
Measured on a scale of 0-3: 0 indicates no nausea, 1 indicates mild nausea that does not require treatment, 2 indicates nausea that requires treatment, and 3 indicates vomiting.
Postoperatively within 48 hours
Wound healing score
Tidsramme: Postoperative 72 hours、1 and 3 months
The wound healing score is evaluated by independent researchers based on the wound healing score table, which includes three aspects: skin healing, incision infection, and hair growth. The total score is obtained by adding up the three scores. Excellent wound healing: 3 points; Good wound healing is 4-5; Poor wound healing: total score greater than or equal to 6 points.
Postoperative 72 hours、1 and 3 months
Postoperatively and patient and observer scar assessment scale
Tidsramme: Postoperative 72 hours、1 and 3 months
Postoperatively and patient and observer scar assessment scale: the observer scores the scar based on the distribution of blood vessels around the incision, color, scar thickness, surface roughness, area, and softness. Each score ranges from 1 to 10 points and higher scores indicating more severe scars; The patient evaluates the scar based on whether there is pain or itching, color, softness, thickness, and self-perception. Each score range is also 1-10 points, with 1 point indicating no difference from normal skin and a higher score indicating more severe scars.
Postoperative 72 hours、1 and 3 months
Area Under the Curve (AUC) of Numeric Rating Scale at rest (NRSr) Within 0-72 Hours Postoperatively
Tidsramme: Data will be collected at 4、12、24、36 and 72 hours postoperatively
Description: scores of 1-3 indicate mild pain, 4-6 denote moderate pain, and 7-10 signify severe pain
Data will be collected at 4、12、24、36 and 72 hours postoperatively

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Beijing Tiantan Hospital

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

30. mai 2026

Primær fullføring (Antatt)

30. mai 2027

Studiet fullført (Antatt)

30. mai 2028

Datoer for studieregistrering

Først innsendt

21. mai 2026

Først innsendt som oppfylte QC-kriteriene

2. juni 2026

Først lagt ut (Faktiske)

4. juni 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

17. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

16. juni 2026

Sist bekreftet

1. juni 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • KY2025-338-02-5

Plan for individuelle deltakerdata (IPD)

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JA

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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