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Intraoperative Intravenous Lidocaine for Pain After Laparoscopic Appendectomy (LIDO-APP)
Intraoperative Intravenous Lidocaine Infusion for Postoperative Analgesia and Recovery After Laparoscopic Appendectomy: A Randomized, Double-blind, Placebo-controlled Trial
Studie Overzicht
Toestand
Interventie / Behandeling
Gedetailleerde beschrijving
Postoperative pain following laparoscopic appendectomy remains an important clinical concern despite advances in multimodal analgesia. Intravenous lidocaine has been proposed as an effective adjunct because of its analgesic, anti-inflammatory, and antihyperalgesic properties, but evidence in laparoscopic appendectomy remains limited.
This prospective, randomized, double-blind, placebo-controlled trial compared continuous intraoperative intravenous lidocaine infusion with placebo in patients undergoing laparoscopic appendectomy under standardized general anesthesia. Patients were randomly allocated to receive either lidocaine or placebo according to the study protocol.
The primary outcome was postoperative pain intensity measured using the Visual Analogue Scale (VAS). Secondary outcomes included opioid requirements, postoperative nausea and vomiting, return of bowel function, length of hospital stay, incidence of adverse events, and perioperative plasma lidocaine concentrations measured at predefined intraoperative and postoperative time points.
The study aimed to determine the clinical efficacy and safety of intravenous lidocaine infusion as part of multimodal perioperative analgesia for laparoscopic appendectomy and to correlate analgesic effects with measured plasma lidocaine concentrations.
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 4
Contacten en locaties
Studie Locaties
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Miranda
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Caracas, Miranda, Venezuela, 1040
- Hospital Universitario de Caracas
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- Adults aged 18 to 45 years.
- ASA physical status I or II.
- Scheduled for laparoscopic appendectomy under general anesthesia.
- Able to provide written informed consent.
Exclusion Criteria:
- History of cardiac conduction disorders or documented arrhythmias.
- Hepatic insufficiency.
- Renal insufficiency.
- Chronic or long-term opioid therapy.
- Known or suspected hypersensitivity to amide-type local anesthetics.
- Hemodynamic instability at the time of admission to the operating room.
- Body mass index greater than 35 kg/m².
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Verviervoudigen
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Experimenteel: Intravenous lidocaine group
Participants received intraoperative intravenous lidocaine infusion in addition to standardized general anesthesia according to the study protocol.
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Intravenous lidocaine administered as a bolus followed by continuous infusion during laparoscopic appendectomy according to the study protocol.
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Placebo-vergelijker: Placebo group
Participants received an equivalent volume of normal saline placebo under identical anesthetic conditions.
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Intravenous isotonic saline administered using the same infusion schedule as the active treatment to maintain blinding.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Postoperative pain intensity
Tijdsspanne: At 0 (PACU admission), 4, 8, 12, and 24 hours after surgery.
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Postoperative pain intensity assessed using the Visual Analogue Scale (VAS, 0-10), where 0 indicates no pain and 10 indicates the worst imaginable pain.
Lower scores indicate better analgesic efficacy.
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At 0 (PACU admission), 4, 8, 12, and 24 hours after surgery.
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Total opioid comsumption
Tijdsspanne: From surgery completion through 24 hours after surgery.
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Total postoperative opioid requirement during the first 24 hours after surgery.
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From surgery completion through 24 hours after surgery.
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Post operative nausea and vomiting
Tijdsspanne: From surgery completion through 24 hours after surgery.
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Incidence of postoperative nausea and vomiting requiring treatment
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From surgery completion through 24 hours after surgery.
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Time to return of bowel function
Tijdsspanne: From surgery completion to first flatus or bowel movement, assessed through 24 hours after surgery.
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Time from surgery completion to first flatus or bowel movement.
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From surgery completion to first flatus or bowel movement, assessed through 24 hours after surgery.
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Lengh of hospital stay
Tijdsspanne: From surgery completion until hospital discharge (anticipated within 72 hours after surgery).
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Time from surgery completion until hospital discharge.
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From surgery completion until hospital discharge (anticipated within 72 hours after surgery).
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Plasma lidocaine concentration
Tijdsspanne: From baseline through 1 hour after admission to the post-anesthesia care unit (PACU), with plasma lidocaine concentrations assessed at baseline, 30 minutes after study drug infusion initiation, 90 minutes after study drug infusion initiation, and 1 hour
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Plasma lidocaine concentrations measured at predefined intraoperative and postoperative time points to evaluate systemic exposure and pharmacokinetic profile.
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From baseline through 1 hour after admission to the post-anesthesia care unit (PACU), with plasma lidocaine concentrations assessed at baseline, 30 minutes after study drug infusion initiation, 90 minutes after study drug infusion initiation, and 1 hour
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Medewerkers en onderzoekers
Onderzoekers
- Hoofdonderzoeker: JOSEPH A VERAZA, MD, sociedad medica joseph veraza
Studie record data
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Studie start (Werkelijk)
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
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Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- HUC-LIDO-APP-2024-001
Plan Individuele Deelnemersgegevens (IPD)
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Beschrijving IPD-plan
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