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Ultrasound-Guided Rectus Sheath Block Versus Local Infiltration

6. maj 2026 opdateret af: Leyla Kılınc, Sisli Hamidiye Etfal Training and Research Hospital

Comparison of the Analgesic Effects of Local Anesthetic Infiltration and Ultrasound-Guided Rectus Sheath Block in Laparoscopic Cholecystectomy Operations: A Prospective Randomized Controlled Study

Laparoscopic cholecystectomy is associated with significant postoperative pain originating from trocar sites, pneumoperitoneum, and visceral irritation. Both local anesthetic infiltration and ultrasound-guided rectus sheath block are commonly used regional analgesic techniques to reduce postoperative pain and opioid consumption. This prospective randomized controlled study aims to compare the effects of these two techniques on postoperative pain scores, opioid requirements, and analgesia-related adverse effects following laparoscopic cholecystectomy.

Studieoversigt

Detaljeret beskrivelse

Laparoscopic cholecystectomy is a very commonly performed and painful surgical procedure. The etiology of pain is complex and commonly includes pain related to trocar insertion sites, pain secondary to carbon dioxide insufflation, visceral pain, and shoulder pain. Various analgesic medications and regional anesthesia techniques are used for postoperative pain management. Abdominal wall blocks are frequently utilized to reduce opioid-related adverse effects.

Rectus sheath block is a regional anesthesia technique that blocks the anterior cutaneous branches of the lower thoracic nerves (T7-T12) and is used for analgesia in laparoscopic surgeries. Several studies have demonstrated that local anesthetic infiltration provides effective analgesia in laparoscopic cholecystectomy. Although rectus sheath block is an old technique traditionally used in midline surgeries, its analgesic use in laparoscopic procedures has increased in recent years.

In this prospective randomized clinical trial, we aimed to compare the effects of Local Anesthetic Infiltration and Rectus Sheath Block on opioid consumption and pain scores in laparoscopic gallbladder surgery.

To compare the effects of Local Anesthetic Infiltration and Rectus Sheath Block on opioid consumption and pain scores in laparoscopic gallbladder surgery.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

60

Fase

  • Ikke anvendelig

Kontakter og lokationer

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Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

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

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Ingen

Beskrivelse

Inclusion Criteria:

  • ASA (American Society of Anesthesiologists) class I-II patients
  • Patients aged between 18 and 65 years
  • Patients undergoing laparoscopic cholecystectomy surgery

Exclusion Criteria:

  • ASA class III-IV patients
  • Patients undergoing emergency surgery
  • Relatives of patients who do not provide consent
  • Presence of chronic pain
  • Chronic opioid use
  • Presence of local anesthetic allergy
  • Ibuprofen allergy
  • Paracetamol allergy
  • Presence of infection at the block site
  • Coagulopathy
  • Increased intracranial pressure
  • Pre-existing neurological deficit
  • Severe organ failure
  • Mental retardation
  • Anatomical deformity

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: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: GROUP RSB

Rectus Sheath Block:

After completion of the operation, during the surgical closure phase, bilateral rectus sheath block will be performed. A linear ultrasound probe will be placed transversely over the umbilicus and 1 cm lateral to it. After visualization of the rectus abdominis muscle and posterior rectus sheath, a 22-Gauge 80 mm block needle (Braun Stimuplex Ultra-360, Melsungen, Germany) will be advanced from lateral to medial using the in-plane technique. Following hydrodissection with 1 mL saline between the rectus muscle and posterior sheath and confirmation of appropriate spread, 20 mL local anesthetic (0.25% bupivacaine) will be administered with intermittent negative aspiration.

After completion of the operation, during the surgical closure phase, bilateral rectus sheath block will be performed. A linear ultrasound probe will be placed transversely over the umbilicus and 1 cm lateral to it. After visualization of the rectus abdominis muscle and posterior rectus sheath, a 22-Gauge 80 mm block needle (Braun Stimuplex Ultra-360, Melsungen, Germany) will be advanced from lateral to medial using the in-plane technique. Following hydrodissection with 1 mL saline between the rectus muscle and posterior sheath and confirmation of appropriate spread, 20 mL local anesthetic (0.25% bupivacaine) will be administered with intermittent negative aspiration.
Aktiv komparator: GROUP LAI

Local Anesthetic Infiltration:

At the end of the operation, the surgeon will infiltrate 5 mL local anesthetic (0.5% bupivacaine) subcutaneously into each of the four trocar insertion sites.

At the end of the operation, the surgeon will infiltrate 5 mL local anesthetic (0.5% bupivacaine) subcutaneously into each of the four trocar insertion sites.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
NRS Score
Tidsramme: Pain scores will be assessed and recorded at postoperative 0, 1, 4, 12, and 24 hours.
Postoperative pain assessment will be performed using the Numeric Rating Scale (NRS). The NRS is a scale in which patients rate their pain intensity numerically from 0 (no pain) to 10 (worst imaginable pain).
Pain scores will be assessed and recorded at postoperative 0, 1, 4, 12, and 24 hours.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Opioid Consumption
Tidsramme: 24 hour
Postoperative opioid consumption will be evaluated using intravenous patient-controlled analgesia (IV PCA) over 24 hours. PCA will be set in bolus-only mode (10 mg tramadol), without continuous infusion. Patients will be educated preoperatively regarding PCA use and instructed to administer boluses in case of pain. At the end of 24 hours, total opioid consumption will be recorded from the device data, and the time to first bolus administration (time to first analgesic requirement) will also be evaluated.
24 hour
Adverse Effects
Tidsramme: 24 hour
Adverse effects such as hypotension, bradycardia, nausea, vomiting, and local anesthetic systemic toxicity (LAST) occurring within the first 24 postoperative hours will be monitored and recorded.
24 hour

Samarbejdspartnere og efterforskere

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Efterforskere

  • Ledende efterforsker: LEYLA KILINC, şişli etfal eğitim araştırma hastanesi

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)

12. maj 2026

Primær færdiggørelse (Anslået)

12. november 2026

Studieafslutning (Anslået)

12. december 2026

Datoer for studieregistrering

Først indsendt

6. maj 2026

Først indsendt, der opfyldte QC-kriterier

6. maj 2026

Først opslået (Faktiske)

12. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

12. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

6. maj 2026

Sidst verificeret

1. maj 2026

Mere information

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