Anterior Ilıac BlockNCT07533383
Effect of Anterior Iliac Block on Postoperative Analgesia and Patient Satisfaction in Inguinal Hernia Repair Surgery
A study testing Anterior Iliac Block in people with Anterior Ilıac Block and Hernia Surgery, run by Sanliurfa Mehmet Akif Inan Education and Research Hospital at 2 sites in Turkey (Türkiye).
Trial summary
Inguinal hernia repair is one of the most commonly performed surgical procedures worldwide and presents challenges in anesthesia selection and postoperative pain management. Spinal anesthesia is frequently preferred due to its advantages, such as avoiding neuromuscular blockers and endotracheal intubation. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Anterior Ilıac Block, Hernia Surgery, Spinal Anesthesia
- What is being tested?
- Anterior Iliac Block
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 80 participants
- Where
- 2 sitesTurkey (Türkiye)
- Study dates
- 30 Apr 2026to 30 Apr 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 18-65 years patient
- American Society of Anesthesiologists(ASA) I-II patient
Who cannot join
- Patients who declined to participate in the study
- Patients with contraindications to the anterior iliac block
- Pregnant or breastfeeding patients
- Patients classified as ASA III, IV, or V
Trial locations and contacts
2 sites in 1 country. Contact the study team or a site near you to ask about taking part.
Turkey (Türkiye)2 sites, 2 recruiting
- Not yet recruiting
Şanlıurfa Mehmet Akif İnan Training and Research Hospital
Sanliurfa
ABDULLAH ŞENGÜL, MD, +905077345751, abdullahsengul342@gmail.com
- Recruiting
Şanlıurfa Mehmet Akif İnan Training and Research Hospital
Sanliurfa
ABDULLAH ŞENGÜL, MD, +905077345751, abdullahsengul342@gmail.com
About this study
Inguinal hernia repair is one of the most commonly performed surgical procedures worldwide and presents challenges in anesthesia selection and postoperative pain management. Spinal anesthesia is frequently preferred due to its advantages, such as avoiding neuromuscular blockers and endotracheal intubation. Effective postoperative analgesia is essential for improving patient comfort and reducing opioid consumption.
The anterior iliac block, a recently described technique, has emerged as a potential alternative to conventional regional anesthesia methods, offering wider nerve coverage and possibly improved analgesia. However, evidence regarding its efficacy and safety remains limited.
This study aims to evaluate the effect of the anterior iliac block on postoperative analgesia duration and patient satisfaction in patients undergoing inguinal hernia surgery.
Read the detailed description
Inguinal hernia operations are among the most frequently performed surgical procedures worldwide each year. Inguinal hernia surgery involves certain challenges, such as the choice of anesthesia and the management of postoperative analgesia. This surgical procedure is most commonly performed under spinal anesthesia due to advantages such as avoiding paralytic agents and endotracheal intubation. Providing effective postoperative analgesia in inguinal hernia surgery is of great importance in terms of increasing patient comfort and reducing opioid use.
The anterior iliac block, defined in recent years, has been proposed as an alternative to classical regional anesthesia techniques and has attracted attention due to its coverage of a wider nerve distribution area and its potential to provide more effective analgesia. This new block technique is thought to contribute to pain control, especially in the postoperative period, thereby increasing patient satisfaction. However, studies on the effectiveness and reliability of this method are still limited in the literature, and more scientific data on the subject are needed.
The main aim of this study is to investigate the effect of the Anterior Iliac Block, to be applied in patients undergoing inguinal hernia surgery, on the duration of postoperative analgesia and its impact on patient satisfaction during this process.
- Conditions
- Anterior Ilıac Block, Hernia Surgery, Spinal Anesthesia
- Being tested
- Anterior Iliac Block, Control Group (A):
- Keywords
- hernia surgery, postoperative pain, numeric rating scale, spinal anesthesia
- Medical subject headings
- Pain, Postoperative
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Anterior Iliac BlockProcedure or surgery
Patients in this group received an ultrasound-guided anterior iliac block following the completion of surgery under spinal anesthesia. The block was performed under sterile conditions with the patient in the supine position. Using a high-frequency linear ultrasound probe, the anatomical landmarks in the anterior iliac region were identified, and the relevant fascial plane was visualized. A block needle was advanced in-plane under real-time ultrasound guidance, and after negative aspiration, an appropriate volume(20 ml 0.25%) of local anesthetic was injected to ensure adequate spread within the target plane.
All procedures were performed by experienced anesthesiologists. Postoperative analgesia was assessed using standardized pain scores, and additional analgesic requirements were recorded. The duration of analgesia and patient satisfaction were evaluated during the postoperative period.
Control Group (A):Other
Patients in this group did not receive an anterior iliac block. All patients underwent surgery under spinal anesthesia, and no additional postoperative analgesic intervention was administered routinely. Analgesic medication was provided only if required based on patient-reported pain levels.
Pain scores, time to first analgesic requirement, total analgesic consumption, and patient satisfaction were assessed during the postoperative period using the same standardized methods as in the intervention group.
| Study group | Role | What they receive |
|---|---|---|
| Anterior Iliac Block Group | Experimental | Patients will receive spinal anesthesia combined with anterior iliac block for postoperative analgesia Receives: Procedure: Anterior Iliac Block |
| Control Group | Active comparator | Patients will receive spinal anesthesia without anterior iliac block and standard postoperative analgesia Receives: Other: Control Group (A): |
What is being measured
The primary outcome is the main question the study is designed to answer.
Duration of Postoperative Analgesia
Time from completion of spinal anasthesia to the first request for rescue analgesia
Measured: Up to 24 hours postoperative
Secondary outcomes (3)
Postoperative Pain Scores
Pain intensity measured using the Numeric Rating Scale
Measured: At 3, 6, 12 and 24 hours postoperative
Total Oioid Consumption
Total amount of tramadol consumed within the first 24 hours after surgery
Measured: First 24 hours postoperative
Patient Satisfaction
Patient-reported satisfaction with pain management using a 5 point Likert scale
Measured: At 24 hours postoperatively
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Apr 2026
- Study start30 Apr 2026
- Primary completion30 Apr 2027 (estimated)
- Study completion30 Apr 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Anterior Ilıac BlockStudies 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 80 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Sanliurfa Mehmet Akif Inan Education and Research Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, ABDULLAH SENGUL, Sanliurfa Mehmet Akif Inan Education and Research Hospital
- Investigators
- ABDULLAH ŞENGÜL, MD, Principal investigator, Şanlıurfa Mehmet Akif İnan Training and Research Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07533383
- Sponsor's protocol ID
- AIBHS2026
- Status last verified
- Oct 2026
- First submitted
- 9 Apr 2026
- Last updated
- 16 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Ethics committee approval covers only aggregate data analysis; there is no permission to share individual participant data
Publications
Burney RE, Prabhu MA, Greenfield ML, Shanks A, O'Reilly M. Comparison of spinal vs general anesthesia via laryngeal mask airway in inguinal hernia repair. Arch Surg. 2004 Feb;139(2):183-7. doi: 10.1001/archsurg.139.2.183.
PubMed 14769578Callesen T. Inguinal hernia repair: anaesthesia, pain and convalescence. Dan Med Bull. 2003 Aug;50(3):203-18.
PubMed 13677240Yorukoglu HU, Cesur S, Izgin Avci I, GoK A, Aksu C, Selek O, Kus A. Retrospective evaluation of postoperative analgesia efficacy of a new technique in anterior iliac crest bone graft harvesting: anterior iliac block. BMC Anesthesiol. 2024 Nov 29;24(1):443. doi: 10.1186/s12871-024-02829-7.
PubMed 39609729
Study at a glance
From the registry record, last updated by the sponsor on 16 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Anterior Iliac Block on Postoperative Analgesia and Patient Satisfaction in Inguinal Hernia Repair Surgery
- ClinicalTrials.gov ID
- NCT07533383
- Acronym / sponsor ID
- AIBHS2026
- Conditions
- Anterior Ilıac Block, Hernia Surgery, Spinal Anesthesia
- Keywords
- hernia surgery, postoperative pain, numeric rating scale, spinal anesthesia
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 80 participants (estimated)
- Lead sponsor
- Sanliurfa Mehmet Akif Inan Education and Research HospitalUniversity, hospital or other
- Study start
- 30 Apr 2026 (actual)
- Primary completion
- 30 Apr 2027 (estimated)
- Study completion
- 30 Apr 2027 (estimated)
- First posted
- 16 Apr 2026 (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.
Inguinal hernia repair is one of the most commonly performed surgical procedures worldwide and presents challenges in anesthesia selection and postoperative pain management. Spinal anesthesia is frequently preferred due to its advantages, such as avoiding neuromuscular blockers and endotracheal intubation. Effective postoperative analgesia is essential for improving patient comfort and reducing opioid consumption.
The anterior iliac block, a recently described technique, has emerged as a potential alternative to conventional regional anesthesia methods, offering wider nerve coverage and possibly improved analgesia. However, evidence regarding its efficacy and safety remains limited.
This study aims to evaluate the effect of the anterior iliac block on postoperative analgesia duration and patient satisfaction in patients undergoing inguinal hernia surgery.
Detailed description
Inguinal hernia operations are among the most frequently performed surgical procedures worldwide each year. Inguinal hernia surgery involves certain challenges, such as the choice of anesthesia and the management of postoperative analgesia. This surgical procedure is most commonly performed under spinal anesthesia due to advantages such as avoiding paralytic agents and endotracheal intubation. Providing effective postoperative analgesia in inguinal hernia surgery is of great importance in terms of increasing patient comfort and reducing opioid use.
The anterior iliac block, defined in recent years, has been proposed as an alternative to classical regional anesthesia techniques and has attracted attention due to its coverage of a wider nerve distribution area and its potential to provide more effective analgesia. This new block technique is thought to contribute to pain control, especially in the postoperative period, thereby increasing patient satisfaction. However, studies on the effectiveness and reliability of this method are still limited in the literature, and more scientific data on the subject are needed.
The main aim of this study is to investigate the effect of the Anterior Iliac Block, to be applied in patients undergoing inguinal hernia surgery, on the duration of postoperative analgesia and its impact on patient satisfaction during this process.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Anterior Iliac Block Group | Experimental | Procedure: Anterior Iliac BlockPatients will receive spinal anesthesia combined with anterior iliac block for postoperative analgesia |
| Control Group | Active comparator | Other: Control Group (A):Patients will receive spinal anesthesia without anterior iliac block and standard postoperative analgesia |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- 18-65 years patient
- American Society of Anesthesiologists(ASA) I-II patient
Key exclusion criteria (4 listed)
- Patients who declined to participate in the study
- Patients with contraindications to the anterior iliac block
- Pregnant or breastfeeding patients
- Patients classified as ASA III, IV, or V
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 |
|---|---|---|
| Anterior Iliac BlockPatients in this group received an ultrasound-guided anterior iliac block following the completion of surgery under spinal anesthesia. The block was performed under sterile conditions with the patient in the supine position. Using a high-frequency linear ultrasound probe, the anatomical landmarks in the anterior iliac region were identified, and the relevant fascial plane was visualized. A block needle was advanced in-plane under real-time ultrasound guidance, and after negative aspiration, an appropriate volume(20 ml 0.25%) of local anesthetic was injected to ensure adequate spread within the target plane. All procedures were performed by experienced anesthesiologists. Postoperative analgesia was assessed using standardized pain scores, and additional analgesic requirements were recorded. The duration of analgesia and patient satisfaction were evaluated during the postoperative period. | Procedure or surgery | Anterior Iliac Block Group |
| Control Group (A):Patients in this group did not receive an anterior iliac block. All patients underwent surgery under spinal anesthesia, and no additional postoperative analgesic intervention was administered routinely. Analgesic medication was provided only if required based on patient-reported pain levels. Pain scores, time to first analgesic requirement, total analgesic consumption, and patient satisfaction were assessed during the postoperative period using the same standardized methods as in the intervention group. | Other | Control Group |
Primary outcome
Duration of Postoperative Analgesia
Time frame: Up to 24 hours postoperative
Time from completion of spinal anasthesia to the first request for rescue analgesia
3 secondary outcomes
Postoperative Pain Scores
Time frame: At 3, 6, 12 and 24 hours postoperative
Total Oioid Consumption
Time frame: First 24 hours postoperative
Patient Satisfaction
Time frame: At 24 hours postoperatively
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Oct 2026.
- Results publication: PubMed 14769578Burney RE, Prabhu MA, Greenfield ML, Shanks A, O'Reilly M. Comparison of spinal vs general anesthesia via laryngeal mask airway in inguinal hernia repair. Arch Surg. 2004 Feb;139(2):183-7. doi: 10.1001/archsurg.139.2.183.
- Results publication: PubMed 13677240Callesen T. Inguinal hernia repair: anaesthesia, pain and convalescence. Dan Med Bull. 2003 Aug;50(3):203-18.
- Results publication: PubMed 39609729Yorukoglu HU, Cesur S, Izgin Avci I, GoK A, Aksu C, Selek O, Kus A. Retrospective evaluation of postoperative analgesia efficacy of a new technique in anterior iliac crest bone graft harvesting: anterior iliac block. BMC Anesthesiol. 2024 Nov 29;24(1):443. doi: 10.1186/s12871-024-02829-7.
- Individual participant dataSharing planned: No. Ethics committee approval covers only aggregate data analysis; there is no permission to share individual participant data
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.
ABDULLAH ŞENGÜL, MD principal investigator
Şanlıurfa Mehmet Akif İnan Training and Research Hospital
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Anterior Iliac Block in people with Anterior Ilıac Block and Hernia Surgery, run by Sanliurfa Mehmet Akif Inan Education and Research Hospital at 2 sites 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 2 inclusion and 4 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: looking for participants now, as of the sponsor's last update on 16 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites 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. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact ABDULLAH ŞENGÜL, MD (+905077345751, abdullahsengul342@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Duration of Postoperative Analgesia (time frame: Up to 24 hours postoperative). 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 NCT07533383, which also lists 3 linked publications.
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 16 Oct 2026.