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

Injection Site in Ultrasound-Guided Interscalene Block for Shoulder Arthroscopy (ISB-ROOT)

5. juli 2026 opdateret af: Hakan Emirkadı, Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey

Does the Injection Site of Local Anesthetic Around the C5-C7 Nerve Roots Affect Block Success and Complication Rates During Ultrasound-Guided Interscalene Block for Shoulder Arthroscopy?

Ultrasound-guided interscalene block is commonly used for postoperative analgesia in patients undergoing shoulder arthroscopy. The location of local anesthetic injection may influence both block efficacy and the incidence of block-related complications. This randomized, double-blind clinical trial compares two different injection sites around the C5-C7 nerve roots using the same local anesthetic dose and volume. The study will assess block success, postoperative analgesia, opioid consumption, diaphragmatic function, and procedure-related complications.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Patients scheduled for elective shoulder arthroscopy under general anesthesia will be randomly assigned to one of two ultrasound-guided interscalene block techniques. In one group, the local anesthetic will be injected between the C5-C7 nerve roots and the anterior scalene muscle. In the other group, the injection will be performed between the C5-C7 nerve roots and the middle scalene muscle. The same local anesthetic solution, volume, and concentration will be used in both groups.

Block success, postoperative pain control, opioid consumption, diaphragmatic movement assessed by ultrasonography, and block-related complications including vascular puncture, Horner syndrome, hoarseness, dyspnea, nausea, vomiting, and prolonged motor block will be recorded and compared between the groups.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

50

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiekontakt

Studiesteder

  • Tyrkiet (Türkiye)
    • Istanbul
      • Istanbul, Istanbul, Tyrkiet (Türkiye), 34668
        • Sultan Abdulhamid Han Training and Research Hospital
        • Kontakt:

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:

Adults aged 18 years or older. ASA physical status I-III. Scheduled for shoulder arthroscopy under general anesthesia with a planned ultrasound-guided interscalene block for postoperative analgesia.

Able to provide written informed consent. Normal coagulation parameters and no antithrombotic therapy. No infection or anatomical abnormality at the injection site. No known allergy to local anesthetics. No contralateral diaphragmatic paralysis or pneumothorax. No dyspnea and adequate pulmonary function.

Exclusion Criteria:

Age younger than 18 years or ASA physical status IV. Antithrombotic therapy or abnormal coagulation parameters. Infection or anatomical abnormality at the injection site. Known allergy to local anesthetics. Contralateral diaphragmatic paralysis or history of pneumothorax. Dyspnea. Refusal to undergo interscalene block.

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: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Anterior Interscalene Block
Ultrasound-guided interscalene block with local anesthetic injected between the C5-C7 nerve roots and the anterior scalene muscle.
Procedure: Ultrasound-Guided Interscalene Block
Ultrasound-guided interscalene brachial plexus block performed before induction of general anesthesia. Participants are assigned to one of two injection sites around the C5-C7 nerve roots according to the randomized study protocol.
Eksperimentel: Posterior Interscalene Block
Ultrasound-guided interscalene block with local anesthetic injected between the C5-C7 nerve roots and the middle scalene muscle.
Procedure: Ultrasound-Guided Interscalene Block
Ultrasound-guided interscalene brachial plexus block performed before induction of general anesthesia. Participants are assigned to one of two injection sites around the C5-C7 nerve roots according to the randomized study protocol.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Postoperative Analgesic Efficacy
Tidsramme: 12 hours after surgery
Postoperative analgesic efficacy will be assessed using patient-controlled analgesia demand and delivered dose counts and the need for rescue analgesia.
12 hours after surgery

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Time to First Rescue Analgesic
Tidsramme: 12 hours after surgery
Time from the end of surgery to first rescue analgesic administration.
12 hours after surgery
Hemidiaphragmatic Paralysis
Tidsramme: Before block and 2 hours after surgery
Presence of ipsilateral hemidiaphragmatic paralysis assessed by ultrasonography.
Before block and 2 hours after surgery
Block-Related Complications
Tidsramme: During block placement and within 12 hours after surgery
Incidence of vascular puncture, intraneural injection, Horner syndrome, dyspnea, hoarseness, nausea, vomiting, recurrent laryngeal nerve block, stellate ganglion block, and prolonged motor block.
During block placement and within 12 hours after surgery
Block Duration
Tidsramme: 12 hours after surgery
Duration of sensory and motor block recorded during postoperative follow-up.
12 hours after surgery

Samarbejdspartnere og efterforskere

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

Sponsor

Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey

Efterforskere

  • Ledende efterforsker: Tuna Erturk, MD, Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey

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)

15. juli 2026

Primær færdiggørelse (Anslået)

10. november 2026

Studieafslutning (Anslået)

30. november 2026

Datoer for studieregistrering

Først indsendt

5. juli 2026

Først indsendt, der opfyldte QC-kriterier

5. juli 2026

Først opslået (Faktiske)

10. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

10. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 21-19

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Individual participant data will not be shared because no data sharing plan has been established for this investigator-initiated study.

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 .

Kliniske forsøg med Postoperativ smerte

Kliniske forsøg med Ultrasound-Guided Interscalene Block

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Sri Lanka

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner