Acute Kidney Injury in Upper GI Bleeding Patients

June 4, 2026 updated by: Walaa Abdelrahim Abdelfattah, Sohag University

Acute Kidney Injury Following Upper Gastrointestinal Bleeding: Incidence and Predictors

This study aims to evaluate the incidence of acute kidney injury (AKI) among patients presenting with acute upper gastrointestinal bleeding (UGIB) at Sohag University Hospitals, and to identify predictors associated with renal impairment in these patients.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

Upper gastrointestinal bleeding (UGIB) is a common medical emergency associated with significant morbidity and mortality. Acute kidney injury (AKI) is frequently observed in these patients, mainly due to hypovolemia and renal hypoperfusion. Despite its clinical importance, data regarding AKI incidence and predictors in UGIB patients, particularly in Middle Eastern populations, remain limited.

This prospective observational study aims to assess renal function abnormalities and identify predictors of AKI in patients with UGIB, including both variceal and non-variceal causes. The study will also evaluate clinical outcomes such as mortality, hospital stay duration, and need for renal replacement therapy.

Study Type

Observational

Enrollment (Estimated)

200

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Egypt
      • Sohag, Egypt
        • Sohag university hospitals

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Adult patients presenting with acute upper gastrointestinal bleeding and admitted to Sohag University Hospitals, including both ward and ICU patients, who meet the eligibility criteria and have available renal function data.

Description

Inclusion Criteria:

  • Adult patients aged 18 years or older
  • Patients presenting with clinical features suggestive of acute upper gastrointestinal bleeding (UGIB), including hematemesis, coffee-ground vomiting, or melena
  • Diagnosis of UGIB confirmed by upper gastrointestinal endoscopy or strong clinical evidence when endoscopy is not immediately available
  • Patients admitted to Sohag University Hospitals (medical wards or intensive care unit)
  • Availability of renal function data, including at least one serum creatinine measurement at admission and serial measurements during hospitalization
  • Availability of baseline renal function (previous serum creatinine within 3-12 months) or estimable baseline during hospitalization

Exclusion Criteria:

  • Patients with end-stage renal disease (ESRD) on chronic dialysis
  • Patients with a history of renal transplantation
  • Patients with advanced chronic kidney disease stage 5 (eGFR <15 mL/min/1.73 m²) not on dialysis
  • Patients with lower gastrointestinal bleeding
  • Patients with incomplete or missing essential renal function data
  • Patients discharged or deceased within 24 hours of hospital admission
  • Pregnant patients
  • Patients with acute kidney injury at presentation due to causes other than UGIB

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Patients with Acute Upper Gastrointestinal Bleeding
Adult patients (≥18 years) presenting with acute upper gastrointestinal bleeding (UGIB) and admitted to Sohag University Hospitals. Patients will be followed prospectively to assess the incidence of acute kidney injury (AKI) and its predictors.
Other: Observational assessment
No therapeutic intervention is applied. Patients are managed according to standard hospital care, and data are collected observationally.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of Acute Kidney Injury (AKI) According to KDIGO Criteria
Time Frame: From hospital admission through hospital discharge, up to 30 days
The incidence of acute kidney injury (AKI) among patients presenting with acute upper gastrointestinal bleeding (UGIB), defined according to KDIGO criteria based on changes in serum creatinine and/or urine output during hospitalization.
From hospital admission through hospital discharge, up to 30 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Patients Developing AKI According to Bleeding Etiology
Time Frame: Baseline (hospital admission) with AKI occurrence assessed through hospital discharge, up to 30 days
Comparison of AKI incidence between variceal and non-variceal UGIB patients.
Baseline (hospital admission) with AKI occurrence assessed through hospital discharge, up to 30 days
Change in Serum Creatinine Concentration
Time Frame: Through hospital discharge, up to 30 days
Serum creatinine concentration (mg/dL) measured at admission and during hospitalization to assess changes in renal function.
Through hospital discharge, up to 30 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sohag University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

May 15, 2026

Primary Completion (Estimated)

January 15, 2027

Study Completion (Estimated)

May 15, 2027

Study Registration Dates

First Submitted

May 6, 2026

First Submitted That Met QC Criteria

June 4, 2026

First Posted (Actual)

June 9, 2026

Study Record Updates

Last Update Posted (Actual)

June 9, 2026

Last Update Submitted That Met QC Criteria

June 4, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SOHAG-UGIB-AKI-26

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

A decision regarding sharing individual participant data (IPD) has not yet been finalized. Any future data sharing will be considered in accordance with institutional policies and participant consent.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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