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Clinical Trials in Turkey / NCT07862777
Recruiting Observational

Geriatric Nutritional Risk Index and ASA Status for Predicting Lung Complications After Major Abdominal Surgery in Older Adults

NCT07862777 · tracked via the Priya Life Science Turkey tracker
Sponsor
Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital
Phase
Observational
Started
2026-10-02
Last updated
2026-10-07

Condition(s) studied

Postoperative Pulmonary Complications (PPC)

Study summary

Postoperative pulmonary complications (PPCs), such as pneumonia, atelectasis, and respiratory failure, are major causes of illness, prolonged hospital stays, and intensive care admissions in older patients undergoing elective major abdominal surgery. The American Society of Anesthesiologists Physical Status (ASA-PS) classification is commonly used before surgery to estimate risk. However, ASA-PS does not directly measure nutritional depletion or muscle weakness, which are critical risk factors in geriatric patients.

The Geriatric Nutritional Risk Index (GNRI) is a simple, objective screening tool calculated from preoperative serum albumin levels and body weight.

The purpose of this observational study is to evaluate the role of GNRI in predicting postoperative pulmonary complications and to determine whether adding GNRI to the standard ASA-PS classification improves the ability to identify older patients at high risk for lung complications after major abdominal surgery.

Eligibility

Sex
ALL
Min age
65 Years
Max age
—
Healthy volunteers
No
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.

Primary outcome measure(s)

  • Incidence of Postoperative Pulmonary Complications Within 30 Days — From the date of surgery through postoperative day 30.
    The proportion of participants who develop at least one postoperative pulmonary complication within 30 days after surgery. Complications, including pneumonia, atelectasis, respiratory failure, or reintubation, will be identified according to the European Perioperative Clinical Outcome (EPCO) consensus definitions using hospital records and the planned 30-day follow-up.

Trial sites (1)

FacilityCityRegionStatus
Dr. Abdurrahman Yurtaslan Ankara Oncology Hospital Yenimahalle Ankara Recruiting

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07862777 on ClinicalTrials.gov ↗ ← All trials in Turkey