U.S., June 2 -- ClinicalTrials.gov registry received information related to the study (NCT07618221) titled 'Air vs. Liquid: A Study on Cystoscopy Performance and Visibility Enhancement in Macrohematuria Cases' on May 25.
Brief Summary: Macroscopic haematuria is a common urological emergency. Diagnostic cystoscopy is the gold standard for identifying the bleeding source; however, blood and clots within the bladder significantly impair endoscopic visibility when saline is used as the distension medium.
Air-based cystoscopy, a technique first described in the 19th century, exploits the immiscibility of gas and blood to maintain clear visualisation even during active bleeding. Despite its theoretical advantages, no randomised clinical data ex...