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Validation and modification of existing bleeding complications prediction models for percutaneous renal biopsy: a prospective study.

PeerJ

December 2024

Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University/West China School of Nursing, Sichuan University, Chengdu, China.

Background: Bleeding complications following percutaneous renal biopsy (PRB) are a significant clinical concern. This study aimed to validate and refine existing prediction models for post-biopsy bleeding to support more accurate clinical decision-making.

Methods: Clinical data from 471 PRB patients were examined in this prospective analysis.

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[Prognosis and risk factors of IgA vasculitis nephritis in children].

Zhonghua Er Ke Za Zhi

December 2024

Department of Pediatric Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China.

Article Synopsis
  • The study focused on understanding the prognosis and risk factors for children with IgA vasculitis nephritis (IgAVN) by analyzing clinical data from 264 diagnosed patients over more than three years.
  • Key findings revealed that the majority of patients presented with skin purpura and kidney issues such as hematuria and proteinuria, with most undergoing renal biopsies shortly after symptoms began.
  • Statistical analyses were employed to assess factors influencing prognosis, and results indicated that younger children had higher rates of complete remission after three years compared to older age groups.
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Article Synopsis
  • Ultrasound-guided kidney biopsy is a crucial diagnostic tool that helps differentiate between acute and chronic kidney diseases in dogs, aiding in accurate diagnosis and treatment decisions.
  • A study involving 28 dogs revealed various nephropathy types, with glomerulonephritis being the most common, and highlighted significant effects like increased urinary iNAG levels post-biopsy, indicating kidney damage.
  • All dogs experienced some degree of hematuria after the biopsy, which was transient and resolved without treatment, suggesting that while biopsy is invasive, side effects tend to be manageable.
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Unlabelled: Percutaneous renal biopsy, although essential for renal disease diagnosis, is associated with a number of post-biopsy complications ranging from gross haematuria to AV fistula to death. In this study, we carried out an active haematoma surveillance and attempted to correlate renal sonological parameters-kidney length, renal parenchymal changes, renal cortical and parenchymal thickness for their potential use in prediction of post-renal biopsy complications.

Methods: This was a prospective study done from April 2022 to April 2023 on all adult patients undergoing native or transplant kidney biopsy.

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Article Synopsis
  • Post-biopsy bleeding, particularly retroperitoneal haematoma, is a serious but rare complication primarily observed in patients with specific risk factors or vascular issues.
  • A case study of a 14-year-old male with IgA nephropathy (IgAN) showed delayed bleeding due to a retroperitoneal haematoma following a renal biopsy, despite initially normal coagulation assessments.
  • The case highlighted a mild deficiency in coagulation factor XIII (FXIII) discovered post-procedure, suggesting that undiagnosed bleeding disorders like FXIII deficiency could elevate the risk of bleeding complications after renal biopsies, underscoring the need for comprehensive evaluation prior to these procedures.
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