Neutrophil Gelatinase-associated Lipocalin in Major Abdominal Surgery

NCT ID: NCT05721638

Last Updated: 2024-01-31

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 43 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2023-06-01
• Study Completion Date: 2023-12-31

Brief Summary

Acute kidney injury (AKI) after major surgery is a well-known complication. The incidence of AKI after major surgery ranges from 13% to 50%. The morbidity and mortality rates increase in patients with AKI due to the treatments applied and the prolonged hospital stay. In addition, as a result of all these processes, hospital costs increase and burden the health systems.

Classifications such as Acute Kidney Injury Network (AKIN) or Kidney Disease Improving Global Outcomes (KDIGO) are used in the diagnosis of AKI. In these classifications, evaluation is made based on kidney damage, serum creatinine (Scr), and urine output. However, Scr; is affected by factors such as age, gender, diet, muscle mass, and medication. In addition, in healthy individuals in terms of kidney reserve, a loss of up to 50% in nephrons is tolerated by the body and there is no change in Scr values. Therefore, the onset of the increase in Scr values occurs 48-72 hours after kidney damage. This situation causes delays in the treatments applied and increases morbidity and mortality rates.

For these reasons, interest in biomarkers used in the early diagnosis of AKI has increased in recent years. Neutrophil gelatinase-associated lipocalin (NGAL) is a 25 KDa, neutrophil-derived molecule from the lipocalin family. It is also secreted in small amounts from kidney, prostate, and respiratory tract epithelial cells. After ischemic and nephrotoxic acute tubular necrosis, NGAL levels peak at the 3rd hour and remain elevated for approximately 24 hours. In patients who do not progress to AKI, NGAL levels begin to decrease in the 1st hour after injury.

When the current literature is examined, scientific studies on NGAL have mostly been carried out on cardiovascular surgery cases to date. There are very few studies evaluating NGAL levels in patients who develop AKI after major abdominal surgery. These few studies evaluated either serum NGAL or urinary NGAL levels. In this study, both serum NGAL and urinary NGAL will be measured simultaneously to detect AKI that may develop in patients undergoing major abdominal surgery.

Conditions

Acute Kidney Injury

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Interventions

Neutrophil gelatinase-associated lipocalin

Neutrophil gelatinase-associated lipocalin (NGAL) is a 25 KDa, neutrophil-derived molecule from the lipocalin family. It is also secreted in small amounts from kidney, prostate, and respiratory tract epithelial cells. After ischemic and nephrotoxic acute tubular necrosis, NGAL levels peak at the 3rd hour and remain elevated for approximately 24 hours. In patients who do not progress to AKI, NGAL levels begin to decrease as of the 1st hour after injury.

Intervention Type: DIAGNOSTIC_TEST

Eligibility Criteria

Inclusion Criteria

• ASA I-III,
• Patients undergoing elective major abdominal surgery

Exclusion Criteria

• Chronic renal failure,
• Using nephrotoxic drugs,
• Patients with a history of kidney transplantation or nephrectomy

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Antalya Training and Research Hospital

OTHER_GOV

Sponsor Role: lead

Responsible Party

Erhan Ozyurt

Associate Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Erhan OZYURT, MD

Role: PRINCIPAL_INVESTIGATOR

Antalya Training and Research Hospital

Locations

Antalya Training and Research Hospital

Antalya, , Turkey (Türkiye)

Countries

Turkey (Türkiye)

References

Pan HC, Yang SY, Chiou TT, Shiao CC, Wu CH, Huang CT, Wang TJ, Chen JY, Liao HW, Chen SY, Huang TM, Yang YF, Lin HY, Chan MJ, Sun CY, Chen YT, Chen YC, Wu VC. Comparative accuracy of biomarkers for the prediction of hospital-acquired acute kidney injury: a systematic review and meta-analysis. Crit Care. 2022 Nov 12;26(1):349. doi: 10.1186/s13054-022-04223-6.

Reference Type: BACKGROUND

PMID: 36371256 (View on PubMed)

Other Identifiers

Erhanter01

Identifier Type: -

Identifier Source: org_study_id