Comparison of the effect of spinal erector plane block versus preoperatively extrapleural inserted catheter in postoperative pain control in mini-invasive cardiac surgery

ISRCTN ISRCTN80252380
DOI https://doi.org/10.1186/ISRCTN80252380
Sponsor Charles University
Funder Investigator initiated and funded
Submission date
28/02/2026
Registration date
14/04/2026
Last edited
14/04/2026
Recruitment status
Recruiting
Overall study status
Ongoing
Condition category
Signs and Symptoms
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Plain English summary of protocol not provided at time of registration

Contact information

Dr Jan Kunstyr
Principal investigator, Scientific, Public

General University Hospital in Prague
U Nemocnice 499/2
Prague 2
128 08
Czech Republic

ORCiD logoORCID ID 0000-0002-3659-7764
Phone +420 724828725
Email jan.kunstyr@vfn.cz

Study information

Primary study designInterventional
AllocationRandomized controlled trial
MaskingBlinded (masking used)
ControlActive
AssignmentParallel
PurposeTreatment
Participant information sheet 49118_PIS.pdf
Scientific titleEfficacy of erector spinae plane block versus extrapleural catheter analgesia for postoperative pain control in minimally invasive cardiac surgery
Study objectives The main study objective is to compare postoperative pain between two groups of patients treated with two different types of analgesia
Ethics approval(s)

Approved 19/02/2026, Etická komise VFN Praha (Na Bojišti 1, Praha, 128 08, Czech Republic; +420 224964131; eticka.komise@vfn.cz), ref: 199/25 S-IV

Health condition(s) or problem(s) studiedAcute postoperative pain following minimally invasive cardiac surgery
InterventionRandomisation is performed using a computer-generated random allocation sequence with permuted blocks of variable size (4 and 8). Allocation concealment is ensured using sequentially numbered, opaque, sealed envelopes prepared according to the randomisation list. Envelopes are opened only after eligibility confirmation and written informed consent. Participants and outcome assessors are blinded to treatment allocation.

Enrolled patients will be randomly assigned to either the erector spinae plane block (ESPB) group or the extrapleural catheter (EPC) group. In the ESPB group, an ultrasound-guided catheter will be inserted preoperatively in the sitting position between the transverse process of the fifth thoracic vertebra and the erector spinae muscle. In the EPC group, an extrapleural catheter will be inserted by the surgeon under direct vision immediately before wound closure.

All patients will undergo standardized total intravenous anesthesia with propofol and remifentanil and left-sided double-lumen endotracheal intubation. Mechanical ventilation will be adjusted to maintain adequate oxygenation and ventilation. Surgical access will be through a left fifth intercostal incision with placement of a chest drain.

In both groups, 30 mL of 0.25% bupivacaine will be administered via the catheter before skin closure, followed by continuous infusion of 0.125% bupivacaine at 3–8 mL/h. Postoperative multimodal analgesia will include intravenous paracetamol and metamizole. Rescue analgesia will be provided with hydromorphone as needed. Pain scores, opioid-related adverse events, duration of intubation, intensive care unit stay, and total hospital length of stay will be recorded.
Intervention typeProcedure/Surgery
Primary outcome measure(s)
  1. Pain measured using a Numerical Rating Scale (NRS) at 6 hours postoperatively
Key secondary outcome measure(s)
  1. Pain score, opioid side effects, opioids and other pain killers doses, time to extubation, ICU stay, hospital stay measured using a Numerical Rating Scale (NRS) at the time of extubation, 18, 24 and 48 hours postoperatively
Completion date31/01/2028

Eligibility

Participant type(s)
Age groupMixed
Lower age limit18 Years
Upper age limit80 Years
SexAll
Target sample size at registration80
Key inclusion criteria1. Patients aged between 18 and 80 years
2. Scheduled for mini-invasive direct coronary artery bypass (MIDCAB) via thoracotomy
Key exclusion criteria1. Body mass index less than 18 or greater than 30 kg/m2
2. Emergency or redo surgery
3. Contraindications to the use of regional blocks
4. Diagnosed psychiatric disorder
5. History of opioid addiction
6. With chronic or neuropathic pain
7. Patient refusal
Date of first enrolment23/02/2026
Date of final enrolment31/12/2027

Locations

Countries of recruitment

  • Czech Republic

Study participating centres

Results and Publications

Individual participant data (IPD) Intention to shareNo

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Other files 09/03/2026 No No
Participant information sheet 09/03/2026 No Yes
Protocol file version 2 09/03/2026 No No

Additional files

49118 _PROTOCOL_v2.pdf
Protocol file
49118_PIS.pdf
Participant information sheet
49118_InformedConsent.pdf
Other files

Editorial Notes

09/03/2026: Study's existence confirmed by the Ethics Committee of the General University Hospital.