AtelectasisNCT04830280
Effect Posterior QLB on Atelectasis
A study testing posterior quadratus lumborum block in people with Atelectasis and Block, run by Zonguldak Bulent Ecevit University at 1 site in Turkey (Türkiye).
Trial summary
We aimed to investigate the effect of posterior quadratus lumborum block on postoperative atelectasis in inguinal hernia surgery in pediatric patients. Read more about this study
- Who is it for?
- Ages 0 to 2 yearsHealthy volunteers can take part
- Conditions the study is for
- Atelectasis, Block, Pediatrics
- What is being tested?
- posterior quadratus lumborum block
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 2 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Mar 2021to 30 Sep 2021
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 0 to 2 years
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- under 2 years old,
- ASA I-II risk group
- Patients who underwent an inguinal hernia operation under general anesthesia, posterior quadratus lumborum block for postoperative analgesia or pain treatment with conventional method
- Patients whose informed consent was read and approval was obtained from him and his guardian
Who cannot join
- who do not want to participate in the study,
- ASA III-IV-V patients
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site, 1 recruiting
- Recruiting
Zonguldak Bülent Ecevit University Medicine Faculty
Zonguldak, Kozlu, 67600
murat can, +90 372 261 20 01 ext. 2839, murat.can@beun.edu.tr
About this study
Official title: The Effect of Ultrasound-guided Posterior Quadratus Lumborum Block on Atelectasis in Pediatric Patients
We aimed to investigate the effect of posterior quadratus lumborum block on postoperative atelectasis in inguinal hernia surgery in pediatric patients.
- Conditions
- Atelectasis, Block, Pediatrics, Quadratus Lumborum Block
- Being tested
- posterior quadratus lumborum block
- Keywords
- postoperative atelectasis, ultrasound, lung ultrasound score, posterior QLB
- Medical subject headings
- Pulmonary Atelectasis, Bites and Stings
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
posterior quadratus lumborum blockProcedure or surgery
administration local anesthetic solution between the middle layer of the thoracolumbar fascia and QL muscle at the posterior edge of the quadratus lumborum muscle
| Study group | Role | What they receive |
|---|---|---|
| Posterior quadratus lumborum block | Active comparator | Not described Receives: Procedure: posterior quadratus lumborum block |
| control group | Sham comparator | Not described Receives: Procedure: posterior quadratus lumborum block |
What is being measured
The primary outcome is the main question the study is designed to answer.
lung ultrasound score
atelectasis
Measured: up to 1 hour after surgery
Secondary outcomes (1)
pain scores
Flacc scores
Measured: up to 6 hour after surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Apr 2021
- Study start1 Mar 2021
- Primary completion31 Aug 2021 (estimated)
- Study completion30 Sep 2021 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for AtelectasisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 2 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Zonguldak Bulent Ecevit University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Çağdaş Baytar, Zonguldak Bulent Ecevit University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04830280
- Sponsor's protocol ID
- 2021/03-11
- Status last verified
- Jun 2021
- First submitted
- 29 Mar 2021
- Last updated
- 2 Jun 2021
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Baytar C, Ucarci DT, Baytar MS, Bollucuoglu K, Ayoglu H. Effects of ultrasound-guided posterior quadratus lumborum block on atelectasis in pediatric patients undergoing inguinal hernia repair and orchiopexy surgeries: A randomized controlled study. Sci Rep. 2026 Mar 10;16(1):12929. doi: 10.1038/s41598-026-43998-4.
PubMed 41807715
Study at a glance
From the registry record, last updated by the sponsor on 2 Jun 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Ultrasound-guided Posterior Quadratus Lumborum Block on Atelectasis in Pediatric Patients
- ClinicalTrials.gov ID
- NCT04830280
- Acronym / sponsor ID
- 2021/03-11
- Conditions
- Atelectasis, Block, Pediatrics, Quadratus Lumborum Block
- Keywords
- postoperative atelectasis, ultrasound, lung ultrasound score, posterior QLB
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 2 participants (estimated)
- Lead sponsor
- Zonguldak Bulent Ecevit UniversityUniversity, hospital or other
- Study start
- 1 Mar 2021 (actual)
- Primary completion
- 31 Aug 2021 (estimated)
- Study completion
- 30 Sep 2021 (estimated)
- First posted
- 5 Apr 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
We aimed to investigate the effect of posterior quadratus lumborum block on postoperative atelectasis in inguinal hernia surgery in pediatric patients.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Posterior quadratus lumborum block | Active comparator | Procedure: posterior quadratus lumborum block |
| control group | Sham comparator | Procedure: posterior quadratus lumborum block |
Who may qualify
- Ages
- 0 to 2 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (4 listed)
- under 2 years old,
- ASA I-II risk group
- Patients who underwent an inguinal hernia operation under general anesthesia, posterior quadratus lumborum block for postoperative analgesia or pain treatment with conventional method
- Patients whose informed consent was read and approval was obtained from him and his guardian
Key exclusion criteria (2 listed)
- who do not want to participate in the study,
- ASA III-IV-V patients
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| posterior quadratus lumborum blockadministration local anesthetic solution between the middle layer of the thoracolumbar fascia and QL muscle at the posterior edge of the quadratus lumborum muscle | Procedure or surgery | Posterior quadratus lumborum block, control group |
Primary outcome
lung ultrasound score
Time frame: up to 1 hour after surgery
atelectasis
1 secondary outcome
pain scores
Time frame: up to 6 hour after surgery
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Jun 2021.
- Derived from this study: PubMed 41807715Baytar C, Ucarci DT, Baytar MS, Bollucuoglu K, Ayoglu H. Effects of ultrasound-guided posterior quadratus lumborum block on atelectasis in pediatric patients undergoing inguinal hernia repair and orchiopexy surgeries: A randomized controlled study. Sci Rep. 2026 Mar 10;16(1):12929. doi: 10.1038/s41598-026-43998-4.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Zonguldak Bülent Ecevit University Medicine Faculty
Zonguldak, Turkey (Türkiye)
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing posterior quadratus lumborum block in people with Atelectasis and Block, run by Zonguldak Bulent Ecevit University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 2 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
lung ultrasound score (time frame: up to 1 hour after surgery). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04830280, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jun 2021.