An interventional study of Quadro-İliac Plane Block(QİPB) in Postoperative Pain and Percutaneous Nephrolithotomy, sponsored by Cumhuriyet University. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-06-03.
Sponsored by Cumhuriyet University · Not applicable, Interventional, and Other
Our aim was to investigate the effect of quadro iliac plane block on postoperative analgesia in patients undergoing percutaneous nephrolithotomy surgery and to determine which areas of the skin this block anesthetizes.
5,640 studies on the registry are indexed under Pain, Postoperative; 1,230 are open to participants now.
This study's planned enrollment of 60 is below the median of 75 across 4,821 interventional studies indexed under Pain, Postoperative.
Browse Pain, Postoperative studies →Cumhuriyet University is the lead sponsor of 133 studies on the registry; 26 are open to participants now.
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Exclusion Criteria:
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.
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.
No non-routine procedures will be performed on this group.
For this group, after the surgical procedure is completed, the patient will be placed in a lateral position with the operated side facing up, and a QIPB will be performed. With the patient in the lateral position, the spinous process of the L3 vertebra will first be imaged with an ultrasound probe positioned transversely in the midline. Then, by slightly shifting the probe laterally, the transverse process of the vertebra will be visualized within the erector spinae muscle. The probe will then be rotated in the sagittal plane and advanced caudally about 1 cm, visualizing the crista iliaca. On the cranial side of the crista iliaca, the erector spinae muscle, quadratus lumborum, and psoas major muscles will be visualized sequentially. With the needle direction cranial to caudal, the crista iliaca will be gently touched, and the needle will be positioned between the erector spinae and the quadratus lumborum muscle. After injecting 40 ml of 0.25% bupivacaine, the needle will be injected.
Procedure: Quadro-İliac Plane Block(QİPB)
40 mL of 0.25% bupivacaine
Numeric Rating Scale (NRS) Scores
Description: Numerical rating scale is used for pain assessment. The scores of the numerical rating scale changes between 0 to 10 points. 10 points mean "the most severe pain that the patient ever had". 0 point means "there is no pain." Higher scores mean worse outcome.
Time frame: Postoperative 24 hours
Dermatome Area
Time frame: Postoperative 2 hours
Total tramadol consumption
Postoperative total analgesic need was recorded as "milligram" in unit.
Time frame: Postoperative 24 hours
Plan to share: No
No publications or documents are linked to this record.
Started Sep 2025 (actual). Primary completion is estimated for Sep 2026, 11 months after the start.
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 11 months is close to 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.
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