US-guided Renal Transplant Biopsy: Efficacy of a Cortical Tangential Approach

Abstract

The cortical tangential approach can be used by a cohort of radiologists to achieve 95% or higher collective success in obtaining cortical tissue during renal transplant biopsy, with few complications. The success rate is higher, without increased complications, when more than one core specimen is taken.

Real time US guided pediatric percutaneous renal biopsy: the traditional method vs angled tangential approach

“…The complication rate associated with the performance of percutaneous renal biopsy has significantly decreased in recent years as a result of the technological advances applied to the procedure. The use of automatic biopsy needles with guidence of US to localize the biopsy site and to visualize the needle trace for the execution of a safe procedure (1)(2)(3)7,8). In the present study, total of minor complications occurred in 42 cases (14.3%) and major complication in 1 case (0.3%).…”

“…From this date on to May 2009, pediatric percutaneous renal biopsy was standardized for passing through Broödel's line, which comprised the angled tangential approach. Patel et al described and performed this technique for US-guided renal transplant biopsies (1). In the present study, biopsy material was obtained randomly from the renal parenchyma in Group A, while posterolateral area, which is from lower pole of renal parenchyma, was used in Group B.…”

“…In the present study, the most frequent indication for PRB was also nephrotic syndrome (45.9%) which was followed by nephritic syndrome (21.7%) and urinary abnormalities, for example hematuria and/or proteinuria (16.6%). The most frequent histopathological group of diseases found in studies in the a real-time imaging, low cost and without exposing ionising radiation for patients (1,2). Percutaneous kidney biopsy is still a risky procedure although it is carried out under the guidance of ultrasonography.…”

Risk of Bleeding after Native Renal Biopsy as a Function of Preprocedural Systolic and Diastolic Blood Pressure

“…Since native renal biopsy was first described in 1951, technical and procedural advances have been made with improvements in ultrasound (US) imaging, the application of real-time sonographic guidance, the use of automated spring-loaded biopsy devices, and cortex-targeting biopsy techniques (1,2). Despite these technical and procedural improvements, native renal biopsy confers a potentially serious risk of bleeding that can lead to pain, loss of the kidney, and death, and can require hospitalization, analgesia, blood transfusion, and image-guided or surgical intervention (2).…”

Indikation zur Nierenbiopsie nach Nierentransplantation

“…Eini ge Untersucher wählen auch eine tangen tiale Biopsietechnik, um die Anzahl der Glomeruli im Bioptat zu erhöhen und die Erfolgsaussichten zu optimieren. Die Komplikationsrate bei dieser Biopsietech nik ist nicht erhöht[16].…”