An interventional study of Erector spinae plane block and Subcostal transversus abdominis plane block in Postoperative Pain and Gynecologic Neoplasms, sponsored by Diskapi Yildirim Beyazit Education and Research Hospital. Not yet recruiting. Open to female participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-11-10.
Sponsored by Diskapi Yildirim Beyazit Education and Research Hospital · Not applicable, Interventional, and Other
This prospective randomized study compared two ultrasound-guided regional anesthesia techniques used as part of multimodal analgesia in women undergoing elective laparoscopic gynecologic oncologic surgery: bilateral erector spinae plane (ESP) block and bilateral subcostal transversus abdominis plane (TAP) block. During general anesthesia, the remifentanil infusion was titrated according to the skin conductance algesimeter (SCA), a device that monitors the sympathetic response to noxious stimuli. The main question was whether ESP block reduces intraoperative remifentanil consumption compared with subcostal TAP block. Postoperative pain scores, rescue analgesic requirement, and quality of recovery were also compared during the first 24 postoperative hours.
Female patients aged 18-65 years with ASA physical status I-III scheduled for elective laparoscopic gynecologic oncologic surgery were randomized in a 1:1 ratio using a computer-generated list (Research Randomizer) to the ESP group or the subcostal TAP group. General anesthesia was induced with fentanyl 0.5 µg/kg, propofol 2.5 mg/kg, and rocuronium 0.6 mg/kg and maintained with sevoflurane at approximately 1 minimum alveolar concentration. After induction and before surgical incision, blocks were performed under ultrasound guidance by experienced anesthesiologists with 20 mL of 0.25% bupivacaine on each side (total 40 mL): bilateral ESP block at the T9 level in the lateral decubitus position, or bilateral subcostal TAP block at the midclavicular line below the costal margin in the supine position.
Remifentanil infusion was started at 0.05-0.2 µg/kg/min and titrated according to the SCA index: decreased by 0.025 µg/kg/min when the index was 0-1, maintained when it was 3, and increased by 0.025-0.05 µg/kg/min when it was above 3, with at least 5 minutes between dose changes. The infusion could be reduced to zero when the SCA index remained at 0-1. Heart rate, blood pressure, SCA index, and bispectral index (BIS) were recorded at baseline, after intubation, every 15 minutes during surgery, and before and after extubation. All patients received intravenous dexketoprofen 50 mg and paracetamol 1 g approximately 30 minutes before the end of surgery.
Postoperative pain was assessed with the Numeric Rating Scale (NRS) at 0, 2, 4, 6, 12, 18, and 24 hours. Tenoxicam was given for NRS ≥4 and tramadol for NRS ≥7 as rescue analgesics. The Quality of Recovery-15 (QoR-15) questionnaire was administered preoperatively and at 24 hours postoperatively. Intraoperative data and postoperative follow-up were recorded by investigators who did not perform the blocks.
5,640 studies on the registry are indexed under Pain, Postoperative; 1,230 are open to participants now.
This study's planned enrollment of 66 is below the median of 75 across 4,821 interventional studies indexed under Pain, Postoperative.
Browse Pain, Postoperative studies →Diskapi Yildirim Beyazit Education and Research Hospital is the lead sponsor of 71 studies on the registry; 12 are open to participants now.
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Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Women aged 18-65 years Scheduled for elective laparoscopic gynecologic oncologic surgery I-III 18-40 kg/m² Written No to regional block
Exclusion Criteria:
Age \<18 or >65 years IV or higher Severe systemic comorbidity Known allergy to local anesthetics Bleeding diathesis or coagulopathy Infection at the block site \<18 or >40 kg/m² Emergency surgery
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
ASA physical status
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilateral ultrasound-guided erector spinae plane block at the T9 level with 20 mL of 0.25% bupivacaine on each side, performed after induction of general anesthesia and before surgical incision. Intraoperative remifentanil infusion titrated according to the skin conductance algesimeter index.
Other: Erector spinae plane block
Bilateral ultrasound-guided subcostal transversus abdominis plane block with 20 mL of 0.25% bupivacaine on each side, performed after induction of general anesthesia and before surgical incision. Intraoperative remifentanil infusion titrated according to the skin conductance algesimeter index.
Other: Subcostal transversus abdominis plane block
Procedure: Erector spinae plane block - Ultrasound-guided bilateral ESP block at T9 with 20 mL of 0.25% bupivacaine per side. Arm: ESP Group.
Procedure: Subcostal transversus abdominis plane block - Ultrasound-guided bilateral subcostal TAP block at the midclavicular line with 20 mL of 0.25% bupivacaine per side. Arm: Subcostal TAP Group.
Total intraoperative remifentanil consumption
Total intraoperative remifentanil consumption - Total amount of remifentanil (µg) administered under skin conductance algesimeter guidance.
Time frame: from induction of anesthesia to the end of surgery.
Time to first rescue analgesic
Time to first rescue analgesic - Time from extubation to the first rescue analgesic administration (minutes). Time frame: first 24 postoperative hours.
Time frame: 0, 2, 4, 6, 12, 18, and 24 hours postoperatively.
Rescue analgesic requirement
Rescue analgesic requirement - Number of patients receiving rescue analgesics (tenoxicam or tramadol). 0, 2, 4, 6, 12, 18, and 24 hours postoperatively.
Time frame: 0, 2, 4, 6, 12, 18, and 24 hours postoperatively.
Postoperative pain scores
Postoperative pain scores - Numeric Rating Scale (0 = no pain, 10 = worst imaginable pain).
Time frame: 0, 2, 4, 6, 12, 18, and 24 hours postoperatively.
Quality of recovery
Quality of recovery - Quality of Recovery-15 (QoR-15) score (0-150; higher scores indicate better recovery).
Time frame: Time frame: preoperatively and 24 hours postoperatively.
No study locations are listed for this record.
Start is estimated for Nov 2026; primary completion for Feb 2027, 3 months later.
Of 2,089 non-industry interventional studies with no phase under Pain, Postoperative, half reached primary completion within 11 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 23. This study's planned 3 months is below that.
Counting every sponsor, half of 2,102 studies reached it within 11 months; a quarter within 6 and three quarters within 23.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is not yet recruiting, as verified in Nov 2026. You cannot join it, but the record below documents what was studied.
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Diskapi Yildirim Beyazit Education and Research Hospital