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
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
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.
Studientyp
Studientyp
Einschreibung (Tatsächlich)
Einschreibung
Phase
Phase
- Phase 4
Kontakte und Standorte
Studienorte
-
-
Miranda
-
Caracas, Miranda, Venezuela, 1040
- Hospital Universitario de Caracas
-
-
Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
Akzeptiert gesunde Freiwillige
Beschreibung
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.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Vervierfachen
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
|
Experimental: Intravenous lidocaine group
Participants received intraoperative intravenous lidocaine infusion in addition to standardized general anesthesia according to the study protocol.
|
Intravenous lidocaine administered as a bolus followed by continuous infusion during laparoscopic appendectomy according to the study protocol.
|
|
Placebo-Komparator: Placebo group
Participants received an equivalent volume of normal saline placebo under identical anesthetic conditions.
|
Intravenous isotonic saline administered using the same infusion schedule as the active treatment to maintain blinding.
|
Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Postoperative pain intensity
Zeitfenster: At 0 (PACU admission), 4, 8, 12, and 24 hours after surgery.
|
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.
|
At 0 (PACU admission), 4, 8, 12, and 24 hours after surgery.
|
Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Total opioid comsumption
Zeitfenster: From surgery completion through 24 hours after surgery.
|
Total postoperative opioid requirement during the first 24 hours after surgery.
|
From surgery completion through 24 hours after surgery.
|
|
Post operative nausea and vomiting
Zeitfenster: From surgery completion through 24 hours after surgery.
|
Incidence of postoperative nausea and vomiting requiring treatment
|
From surgery completion through 24 hours after surgery.
|
|
Time to return of bowel function
Zeitfenster: From surgery completion to first flatus or bowel movement, assessed through 24 hours after surgery.
|
Time from surgery completion to first flatus or bowel movement.
|
From surgery completion to first flatus or bowel movement, assessed through 24 hours after surgery.
|
|
Lengh of hospital stay
Zeitfenster: From surgery completion until hospital discharge (anticipated within 72 hours after surgery).
|
Time from surgery completion until hospital discharge.
|
From surgery completion until hospital discharge (anticipated within 72 hours after surgery).
|
|
Plasma lidocaine concentration
Zeitfenster: 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
|
Plasma lidocaine concentrations measured at predefined intraoperative and postoperative time points to evaluate systemic exposure and pharmacokinetic profile.
|
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
|
Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: JOSEPH A VERAZA, MD, sociedad medica joseph veraza
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Tatsächlich)
Primärer Abschluss
Studienabschluss (Tatsächlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- HUC-LIDO-APP-2024-001
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Beschreibung des IPD-Plans
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Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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