PneumoniaPPC65MASNCT07306897
Postoperative Pulmonary Complications in Elderly Patients Undergoing Major Abdominal Surgery
An observational study of Pneumonia and Postoperative Complications, run by Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital at 1 site in Turkey (Türkiye).
Trial summary
This study aims to identify the risk factors associated with postoperative pulmonary complications (PPCs) in patients aged 65 years and older who undergo major abdominal surgery. The study is designed as a retrospective observational analysis using data from patient records. Read more about this study
- Who is it for?
- Ages 65 years and older
- Conditions the study is for
- Pneumonia, Postoperative Complications
- How many people
- 239 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Aug 2025to 1 Oct 2025
- How long will I take part?
- 1 Day
- Phase
- Observational
- 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 65 years and older
- All sexes
- No healthy volunteers
- Older adult
Study population: The study population consists of patients aged 65 years and older who underwent major abdominal surgery. Only patients with complete perioperative and postoperative medical records were included. Patients were retrospectively classified into two groups based on the occurrence of postoperative pulmonary complications (PPCs) within the first 24 hours after surgery.
Who may be able to join
- Patients aged 65 years or older.
- Patients who underwent major abdominal surgery at [Institution Name].
- Availability of complete perioperative and postoperative clinical records.
- Postoperative hospital stay of at least 24 hours.
Who cannot join
- Patients younger than 65 years.
- Patients undergoing minor or non-abdominal surgery.
- Incomplete or missing perioperative or postoperative medical records.
- Patients who underwent emergency surgery
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Dr. Abdurrahman Yurtaslan Ankara Oncology Hospital
Ankara, Ankara, 06370
About this study
Official title: Risk Factors for Postoperative Pulmonary Complications After Major Abdominal Surgery in Patients Aged 65 Years and Older: A Retrospective Observational Study
This study aims to identify the risk factors associated with postoperative pulmonary complications (PPCs) in patients aged 65 years and older who undergo major abdominal surgery.
The study is designed as a retrospective observational analysis using data from patient records.
Understanding these risk factors may help clinicians improve perioperative care and reduce the risk of respiratory problems after surgery in elderly patients.
Read the detailed description
This is a retrospective observational study. No follow-up was performed; all data were collected from existing patient records.
- Conditions
- Pneumonia, Postoperative Complications
- Medical subject headings
- Pneumonia, Postoperative Complications
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Group 1: Patients with postoperative pulmonary complications (PPC +) | Group 1 - Patients with postoperative pulmonary complications (PPC +): This group includes patients aged 65 years and older who underwent major abdominal surgery and developed one or more postoperative pulmonary complications, as defined by EPCO criteria | |
| Group 2: Patients without postoperative pulmonary complications (PPC -) | Group 2 - Patients without postoperative pulmonary complications (PPC -): This group includes patients aged 65 years and older who underwent major abdominal surgery but did not develop any postoperative pulmonary complications. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Incidence of Postoperative Pulmonary Complications
The primary outcome is the occurrence of one or more postoperative pulmonary complications (PPCs) in patients aged 65 years and older undergoing major abdominal surgery. PPCs include pneumonia, respiratory failure, or need for reintubation, as defined by the European Perioperative Clinical Outcome (EPCO) criteria. Data were collected retrospectively from patient records during the postoperative hospital stay.
Measured: Within 1 day after surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Dec 2025
- Study start1 Aug 2025
- Primary completion1 Oct 2025
- Study completion1 Oct 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for PneumoniaStudies 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
- Observational
- Observational model
- Case-control
- Time perspective
- Other
- Enrolment
- 239 participants (actual)
- Target duration
- 1 Day
Sponsor and investigators
- Lead sponsor
- Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Arif Timuroğlu, MD, Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital
- Investigators
- Arif Timuroğlu, Principal investigator, ankara oncology trainig and research hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07306897
- Sponsor's protocol ID
- PPC65-MAS-2024
- Acronym
- PPC65MAS
- Status last verified
- Jan 2026
- First submitted
- 14 Dec 2025
- Last updated
- 8 Jan 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: This is a retrospective observational study using existing patient medical records. Individual participant data (IPD) will not be publicly shared to protect patient confidentiality and comply with institutional and ethical regulations. Aggregate data may be shared upon reasonable request.
Study at a glance
From the registry record, last updated by the sponsor on 8 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Risk Factors for Postoperative Pulmonary Complications After Major Abdominal Surgery in Patients Aged 65 Years and Older: A Retrospective Observational Study
- ClinicalTrials.gov ID
- NCT07306897
- Acronym / sponsor ID
- PPC65MAS / PPC65-MAS-2024
- Conditions
- Pneumonia, Postoperative Complications
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 239 participants (actual)
- Lead sponsor
- Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research HospitalUniversity, hospital or other
- Study start
- 1 Aug 2025 (actual)
- Primary completion
- 1 Oct 2025 (actual)
- Study completion
- 1 Oct 2025 (actual)
- First posted
- 29 Dec 2025 (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.
This study aims to identify the risk factors associated with postoperative pulmonary complications (PPCs) in patients aged 65 years and older who undergo major abdominal surgery.
The study is designed as a retrospective observational analysis using data from patient records.
Understanding these risk factors may help clinicians improve perioperative care and reduce the risk of respiratory problems after surgery in elderly patients.
Detailed description
This is a retrospective observational study. No follow-up was performed; all data were collected from existing patient records.
Study design
- Observational model
- Case-control
- Time perspective
- Other
- Target follow-up
- 1 Day
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group 1: Patients with postoperative pulmonary complications (PPC +) | – | –Group 1 - Patients with postoperative pulmonary complications (PPC +): This group includes patients aged 65 years and older who underwent major abdominal surgery and developed one or more postoperative pulmonary complications, as defined by EPCO criteria |
| Group 2: Patients without postoperative pulmonary complications (PPC -) | – | –Group 2 - Patients without postoperative pulmonary complications (PPC -): This group includes patients aged 65 years and older who underwent major abdominal surgery but did not develop any postoperative pulmonary complications. |
Who may qualify
- Ages
- 65 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Older adult
- Study population
- The study population consists of patients aged 65 years and older who underwent major abdominal surgery. Only patients with complete perioperative and postoperative medical records were included. Patients were retrospectively classified into two groups based on the occurrence of postoperative pulmonary complications (PPCs) within the first 24 hours after surgery.
Key inclusion criteria (4 listed)
- Patients aged 65 years or older.
- Patients who underwent major abdominal surgery at [Institution Name].
- Availability of complete perioperative and postoperative clinical records.
- Postoperative hospital stay of at least 24 hours.
Key exclusion criteria (4 listed)
- Patients younger than 65 years.
- Patients undergoing minor or non-abdominal surgery.
- Incomplete or missing perioperative or postoperative medical records.
- Patients who underwent emergency surgery
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Incidence of Postoperative Pulmonary Complications
Time frame: Within 1 day after surgery
The primary outcome is the occurrence of one or more postoperative pulmonary complications (PPCs) in patients aged 65 years and older undergoing major abdominal surgery. PPCs include pneumonia, respiratory failure, or need for reintubation, as defined by the European Perioperative Clinical Outcome (EPCO) criteria. Data were collected retrospectively from patient records during the postoperative hospital stay.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Jan 2026.
- Individual participant dataSharing planned: No. This is a retrospective observational study using existing patient medical records. Individual participant data (IPD) will not be publicly shared to protect patient confidentiality and comply with institutional and ethical regulations. Aggregate data may be shared upon reasonable request.
Related trials for Pneumonia
Not yet recruitingPhase 1
Phase I Open-Label Safety Trial of Pembrolizumab for Neurological Post- Acute Sequelae of SARS-CoV-2 (PD1-PASC I)
Post-Acute COVID-19 Syndrome
Not yet recruitingPhase 2/3
A Pivotal Safety and Immunogenicity GBS-NN/NN2 Vaccine Maternal Immunisation Trial
Streptococcus Agalactiae Infection, Neonatal Sepsis
Active, not recruitingPhase 1
A Safety and Immunogenicity Trial of OCU500, ChAd36 Vector Encoding SARS-CoV-2 Spike Vaccine Via Intranasal and Inhalational Routes in Previously Vaccinated Adults
COVID-19
Enrolling by invitation
Personalized Ventilator Settings for Patients on ECMO
Acute Respiratory Distress Syndrome (ARDS), Extracorporeal Membrane Oxygenation
Not yet recruiting
Expanded Diagnostic Strategy in Older Adults Hospitalized With Community-Acquired Acute Respiratory Infection
Acute Respiratory Infection
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.
Arif Timuroğlu principal investigator
ankara oncology trainig and research hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Pneumonia and Postoperative Complications, run by Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital 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 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: finished, as of the sponsor's last update on 8 Jan 2026. 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. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Incidence of Postoperative Pulmonary Complications (time frame: Within 1 day after surgery). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 8 Jan 2026.