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During the congress, E-Posters will be accessible to all participants on the congress website 24/7, as well as in the E-poster stations in the congress center.
Preparing your E-Poster
Please review the E-Poster format requirements carefully when preparing your E-Poster. Should your E-Poster not meet the mentioned requirements, it may not be displayed as described above.
E-Poster Submission Deadline
Please prepare and upload your E-Poster no later than March 14, 2026 11.59PM CET. After this date, you will no longer be able to prepare and upload your E-poster and it will not be displayed and accessible on the congress website.
Please follow the instructions below to input your abstract title.
Abstract titles should be brief and reflect the content of the abstract.
The reported incidence of bleeding complications after ultrasound-guided percutaneous renal biopsy varies significantly in the literature, and the risk factors remain unclear. The objective of this study was to determine the incidence of post-biopsy bleeding complications and screen for associated risk factors, thereby enabling early intervention or close monitoring for high-risk patients and ultimately improving the clinical safety of renal biopsy.
This retrospective study analyzed cases of patients over 18 years old who underwent ultrasound-guided percutaneous renal biopsy at Guangdong Provincial People's Hospital between January 1, 2023 and December 31, 2024. Data collected included age, sex, BMI, blood pressure, history of hypertension and diabetes, pre-procedure serum creatinine, albumin, coagulation parameters (APTT, TT, INR, Fbg), uric acid, serum calcium, renal length and parenchymal thickness, pre-and post-biopsy hemoglobin and platelet count, and post-biopsy bleeding complications (including new-onset gross hematuria, hematoma, transfusion, interventional procedure, nephrectomy and death). Univariate and multivariate analyses were performed to identify risk factors for post-biopsy bleeding complications.
A total of 721 biopsies were analysed. Post-biopsy bleeding complications occurred in 37 cases (0.051%), including 2 cases (0.003%) of hematoma >5cm in diameter, 7 cases (0.01%) of new-onset gross hematuria, 37 cases (0.051%) requiring transfusion, and 1 case (0.001%) requiring interventional procedure. There were no cases of nephrectomy or death. Comparison of baseline characteristics between the bleeding and non-bleeding groups showed that the bleeding group had a higher proportion of females (64.86% vs. 43.27%, p=0.02), lower pre-procedure hemoglobin (98.32 ± 22.22 g/L vs. 119.91 ± 22.22 g/L, p<0.0001), worse renal function (serum creatinine 350.01 ± 268.71 µmol/L vs. 176.80 ± 180.65 µmol/L, p<0.001), and thinner renal parenchyma (7.32 ± 1.18 mm vs. 7.75 ± 1.43 mm, p=0.04). Univariate analysis identified female sex, pre-procedure hemoglobin, and serum creatinine as risk factors for post-biopsy bleeding complications. After adjusting for age, sex, pre-procedure platelet count and blood pressure, multivariate regression analysis confirmed that female sex, pre-procedure serum creatinine, and hemoglobin remained independent risk factors. The risk for females was 3.56 times that for males (P<0.001, OR 3.56, 95% CI 1.68-7.64). For every 10 g/L decrease in pre-procedure hemoglobin, the bleeding risk increased by 33% (P<0.0001, OR 0.67, 95% CI 0.56-0.79). For every 1 mg/dL decrease in serum creatinine, the bleeding risk increased by 32% (P<0.0001, OR 1.32, 95% CI 1.19-1.47).
The incidence of bleeding complications after ultrasound-guided percutaneous renal biopsy is low. The main risk factors are female sex, lower pre-procedure hemoglobin level, and poorer renal function before biopsy. It is a relatively safe clinical diagnostic procedure.
