An observational study in Postoperative Pulmonary Complications (PPCs), Abdominal Surgeries and Postoperative Pain Management, sponsored by Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 65 Years and older. Per ClinicalTrials.gov, last updated 2026-04-30.
Sponsored by Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital · Observational
This prospective observational study aims to evaluate whether the use of ultrasound-guided fascial plane blocks is associated with a lower incidence of postoperative pulmonary complications in adult patients undergoing elective major abdominal surgery under general anesthesia.
Patients will be observed in two groups based on routine clinical practice: those who receive an ultrasound-guided fascial plane block for postoperative analgesia and those managed with other standard analgesic methods. The choice of analgesic technique will be determined by the responsible anesthesia team and not influenced by the study.
Postoperative pulmonary complications occurring within the first 7 days after surgery will be recorded using reopening the European Perioperative Clinical Outcome (EPCO) criteria. Secondary outcomes will include unplanned intensive care unit admission, length of hospital stay, and 30-day mortality. No additional procedures or interventions will be performed for research purposes.
5,640 studies on the registry are indexed under Pain, Postoperative; 1,230 are open to participants now.
This study's planned enrollment of 500 is above the median of 102 across 683 observational studies indexed under Pain, Postoperative.
Browse Pain, Postoperative studies →Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital is the lead sponsor of 75 studies on the registry; 18 are open to participants now.
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The study population consists of patients aged 65 years and older who are scheduled to undergo elective major abdominal surgery under general anesthesia. Eligible participants will be managed in a tertiary care hospital and will be allocated to either a fascial plane block group or a control group receiving standard perioperative analgesia. The study aims to evaluate postoperative outcomes in an elderly surgical population with comparable baseline characteristics.
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.
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.
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.
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
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.
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.
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.
Child-Pugh class
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
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.
Patients undergoing elective major abdominal surgery who receive an ultrasound-guided fascial plane block at the end of surgery as part of routine clinical practice for postoperative analgesia. The decision to perform the block is made by the responsible anesthesia team and is not influenced by the study protocol.
Patients undergoing elective major abdominal surgery who do not receive an ultrasound-guided fascial plane block and are managed with other routine postoperative analgesic methods, including epidural analgesia, intravenous patient-controlled analgesia, or oral analgesics, according to standard clinical practice.
Incidence of postoperative pulmonary complications (PPCs)
Postoperative pulmonary complications will be defined and recorded according to the European Perioperative Clinical Outcome (EPCO) criteria.
Time frame: Within the first 7 postoperative days
Plan to share: No — Individual participant data will not be shared due to institutional policies and concerns regarding patient confidentiality and data protection.
No publications or documents are linked to this record.
Started Mar 2026 (actual). Primary completion is estimated for Aug 2026, 5 months after the start.
Of 391 non-industry observational studies under Pain, Postoperative, half reached primary completion within 13 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 32. This study's planned 5 months is below that.
Counting every sponsor, half of 395 studies reached it within 13 months; a quarter within 5 and three quarters within 33.
How these figures are worked out, and which studies are left out of them.
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Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital