GNRI and ASA Status to Predict Lung Complications After Major Abdominal Surgery in Older Adults

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study looks at how preoperative nutrition, measured by GNRI, relates to the risk of postoperative pulmonary complications (PPC) after elective major abdominal surgery in older adults. It aims to see if GNRI provides additional predictive value beyond the ASA physical status classification. Researchers will analyze preoperative albumin and weight data to calculate GNRI and correlate it with PPC incidence. The study will help identify high-risk patients who might benefit from targeted preoperative optimization. No interventional treatment is described in the protocol.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Age 65 years or older.
* Scheduled for elective major abdominal surgery under general anesthesia, including colorectal surgery, gastrectomy, pancreatic surgery, or major hepatobiliary resection.
* American Society of Anesthesiologists Physical Status (ASA-PS) class I, II, III, or IV.
* Informed consent provided by the participant or their legal representative.

Exclusion Criteria:

* Emergency surgery.
* Minor or superficial procedures that do not require major intra-abdominal surgery, such as diagnostic laparoscopy, simple laparoscopic cholecystectomy, or simple hernia repair.
* Active pneumonia or acute respiratory failure before surgery.
* Missing preoperative serum albumin, body weight, or height measurements.
* Does not provide informed consent or withdraws from the study.

Where it's running

• Dr. Abdurrahman Yurtaslan Ankara Oncology Hospital
  Yenimahalle, Ankara, Turkey (Türkiye) Recruiting

Study contacts

• Principal investigator: arif timuroglu — Dr. Abdurrahman yurtaslan Ankara Oncology Hospital
• Study coordinator: arif timuroglu, MD
• Email: ariftimuroglu@yahoo.com
• Phone: 05072601980

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.