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Study identifier: NCT07542366 Synced from ClinicalTrials.gov · July 29, 2026
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The Feasibility of Pulmonary Perfusion Assessment Using Sodium Bicarbonate Contrast With Electrical Impedance Tomography: A Prospective Pilot Study

Condition: Acute Respiratory Failure · Acute Respiratory Distress Syndrome (ARDS) · Pneumonia  ·  Sponsor: First Affiliated Hospital of Wannan Medical College

PhaseN/A
Planned participants41
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The goal of this observational pilot study is to learn if sodium bicarbonate can be used safely and effectively as a contrast agent to map lung blood flow using electrical impedance tomography (EIT) in adults on mechanical ventilation. Electrical impedance tomography (EIT) is a bedside imaging method that uses a soft belt with small sensors around the chest to track changes in electrical signals related to breathing and blood flow. The main questions are: Does sodium bicarbonate create clear, readable lung blood flow images with EIT? Are these images similar in quality and pattern to images made with hypertonic saline (10% sodium chloride)? Is the short-term safety profile acceptable, including effects on blood pressure, heart rhythm, and blood tests? Researchers will compare two contrast agents within the same participant to see if image quality and lung blood flow patterns match: Hypertonic saline (10% sodium chloride) Sodium bicarbonate (5%) Participants will: Have an EIT belt placed around the chest during routine ICU care Pause the ventilator briefly during image capture to reduce motion Receive two small intravenous boluses through an existing central line, one of hypertonic saline and one of sodium bicarbonate, with time between doses Have routine monitoring of vital signs; blood gases and electrolytes may be checked per clinical care Be observed for any short-term side effects Findings from this study will show whether sodium bicarbonate is a practical and safe …

This description comes directly from the study's public registry record.

Talk to the study team

qiancheng xu, PhD  ·  +86-18297529106  ·  qianchengxu@wnmc.edu.cn

Always discuss trial participation with your own doctor first.

Locations (1)

The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College)Wuhu, Anhui, ChinaRecruiting

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Source record: clinicaltrials.gov/study/NCT07542366