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Comparison of Analgesic Efficacy Between Ultrasound Guided Serratus Anterior Plane Block or Thoracic Paravertebral Block Versus Intravenous Fentanyl for On-pump Coronary Artery Bypass Graft Surgery

2. november 2026 opdateret af: Ain Shams University

Comparison of Analgesic Efficacy Between Ultrasound Guided Serratus Anterior Plane Block or Thoracic Paravertebral Block Versus Intravenous Fentanyl for On-pump Coronary Artery Bypass Graft Surgery: A Prospective, Randomised, Controlled Clinical Study

Aim is to compare intra and postoperative analgesic efficacy of US-guided serratus anterior plane block (SAPB) or thoracic paravertebral block (TPVB) versus intravenous fentanyl in patient undergoing on-pump CABG surgery.

Studieoversigt

Status

Aktiv, ikke rekrutterende

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Aim is to compare intra and postoperative analgesic efficacy of US-guided serratus anterior plane block (SAPB) or thoracic paravertebral block (TPVB) versus intravenous fentanyl in patient undergoing on-pump CABG surgery.

The enrolled (111) patients will be randomly assigned via a computer-generated randomization table into three parallel and equivalent (1:1:1 ratio) groups: group A (37); will receive serratus anterior plane block, group B (37);will receive thoracic paravertebral block and group C (37); standard of care control group, will receive fentanyl infusion.

Group (A):

SAPB block will be performed Bilaterally. 20 ml of 0.25% bupivacaine hydrochloride [Maracine prepared by adding an equal volume (1:1) of normal saline (0.9%) to 0.5% bupivacaine]will be injected.

Group (B):

TPVB will be performed bilaterally. 20 ml of 0.25% bupivacaine [Maracine prepared by adding an equal volume (1:1) of normal saline (0.9%) to 0.5% bupivacaine] will be injected.

Group (C) (Control):

Patient will receive IV fentanyl infusion just before skin incision, which will be stopped when cardiopulmonary bypass (CPB) is on, then resumed after weaning form CPB and continued till the end of the surgery.500µg fentanyl will be mixed with 50 ml 0.9% normal saline in 50 ml syringe (10 µg /ml).Infusion rate will be determined according to a dose of 1µg /kg/h.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

111

Fase

  • Fase 1

Kontakter og lokationer

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

Studiesteder

    • Abbassia
      • Cairo, Abbassia, Egypten, 00202
        • Ain Shams University

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

40 år til 70 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  1. Age: 40-70 years.
  2. Sex: Males and Females.
  3. American Society of Anaesthesiologists (ASA) Physical Status Class III.
  4. Scheduled for elective on-pump isolated CABG via median sternotomy for 1 or 2 coronary vessel grafts.
  5. Good left ventricular systolic function with ejection fraction (EF) >50%

Exclusion Criteria:

  1. Declining to give a written informed consent.
  2. History of allergy to the medications used in the study.
  3. Contraindications to regional anaesthesia as patient refusal, coagulopathy [activated partial thromboplastin time ≥45 sec, prothrombin time (INR) 1.5, platelets ≤ 80,000/dl], clopidogrel within the last 7 days of the procedure, severe spinal deformity or infection at puncture site).
  4. Psychiatric disorders or significant cognitive dysfunction.
  5. American Society of Anaesthesiologists (ASA) Physical Status Class IV or higher.
  6. Chronic use of opioids.
  7. Morbid obesity (BMI > 40 kg/m2).
  8. Patient with severe pulmonary disease.
  9. Patient who requires emergency CABG operation or redo cardiac surgery.
  10. Post operative intra-aortic balloon or extracorporeal membrane oxygenation (ECMO).
  11. Patient who will be operated for bleeding, tamponade or any reason for revision postoperatively.

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: serratus anterior plane block

this group will be given 20 ml of 0.25% bupivacaine hydrochloride bilaterally

In SAPB; the needle is advanced in-plane from caudally cephalad at the midaxillary line at the level of the fourth rib with 45-degree angle, targeting the plane between the latissimus dorsi and serratus muscles. SAPB block will be performed Bilaterally. After confirmation that the needle tip is in the correct plane by injecting 2 ml of saline, 20 ml of 0.25% bupivacaine hydrochloride [Maracine prepared by adding an equal volume (1:1) of normal saline (0.9%) to 0.5% bupivacaine]will be injected, with intermittent aspiration to confirm neither air nor blood in the needle.

Aktiv komparator: thoracic paravertebral block

this group will be given 20 ml of 0.25% bupivacaine hydrochloride bilaterally

In TPVB; the needle is advanced in parasagittal plane over the transverse processes of the T4 and T5 vertebrae, about 2.5 cm lateral to the spinous processes, just deep to the superior costotransverse ligament but superficial to the parietal pleura. TPVB will be performed bilaterally. After confirmation that the needle tip is in the correct plane by injecting 2 ml of saline, 20 ml of 0.25% bupivacaine [Maracine prepared by adding an equal volume (1:1) of normal saline (0.9%) to 0.5% bupivacaine] will be injected, with intermittent aspiration to confirm no air or blood in the needle.

Andet: control

Intravenous fentanyl infusion 1µg /kg/h

Patient will receive IV fentanyl infusion just before skin incision, which will be stopped when cardiopulmonary bypass (CPB) is on, then resumed after weaning form CPB and continued till the end of the surgery.500µg fentanyl will be mixed with 50 ml 0.9% normal saline in 50 ml syringe (10 µg /ml).Infusion rate will be determined according to a dose of 1µg /kg/h.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Duration of analgesia in hours
Tidsramme: up to 12 hours
up to 12 hours
Postoperative visual analogue pain score (VAS)
Tidsramme: up to 12 hours

Postoperative visual analogue pain score (VAS): It will be recorded every 1 hour after admission to ICU for the first 4 hours ' then every 2 hours for the remaining 8 hours

up to 12 hours
Total dose of fentanyl
Tidsramme: up to 18 hours

Total doses of intra , postoperative fentanyl consumption and doses of rescue fentanyl.

up to 18 hours

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Intra and postoperative haemodynamic data
Tidsramme: up to 18 hours

Mean blood pressure (mmHg): Baseline, immediately after performing the block, at 30 minutes intervals (except when the patient on CPB) till the end of surgery Mean blood pressure (mmHg): Immediately after ICU admission, at 1 hour intervals in the 1st 6 hours, then at 2 hours intervals till 12 hours

up to 18 hours
Postoperative extubation time
Tidsramme: for 12 hours

Postoperative extubation time in minutes.

for 12 hours
Patients with block-related side effects and complications
Tidsramme: for 3 days

bleeding , hematoma , inflammation , nerve injury , hemodynamic changes

for 3 days
Pulmonary function assessment
Tidsramme: for 12 hours

Pulmonary function assessment [forced expiratory volume at one second as % of predicted) using spirometry: Every 6 hours after extubation up to 12 hours

for 12 hours
Intra and postoperative haemodynamic data. Heart rate
Tidsramme: up to 18 hours

Heart rate (beats/minute): Baseline, immediately after performing the block, at 30 minutes intervals (except when the patient on CPB) till the end of surgery Heart rate (beats/minute): Immediately after ICU admission, at 1 hour intervals in the 1st 6 hours, then at 2 hours intervals till 12 hours

up to 18 hours

Samarbejdspartnere og efterforskere

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Sponsor

Publikationer og nyttige links

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Generelle publikationer

Datoer for undersøgelser

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Studer store datoer

Studiestart (Faktiske)

1. januar 2026

Primær færdiggørelse (Anslået)

30. november 2026

Studieafslutning (Anslået)

30. december 2026

Datoer for studieregistrering

Først indsendt

14. oktober 2026

Først indsendt, der opfyldte QC-kriterier

2. november 2026

Først opslået (Faktiske)

3. november 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. november 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • FMASU MD381/2025

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