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Renal Biopsy

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By Isabel Acosta-Ochoa Nephrology senior staff. Valladolid. Spain
https://www.readbyqxmd.com/read/28858910/digital-pathology-in-nephrology-clinical-trials-research-and-pathology-practice
#1
Laura Barisoni, Jeffrey B Hodgin
PURPOSE OF REVIEW: In this review, we will discuss (i) how the recent advancements in digital technology and computational engineering are currently applied to nephropathology in the setting of clinical research, trials, and practice; (ii) the benefits of the new digital environment; (iii) how recognizing its challenges provides opportunities for transformation; and (iv) nephropathology in the upcoming era of kidney precision and predictive medicine. RECENT FINDINGS: Recent studies highlighted how new standardized protocols facilitate the harmonization of digital pathology database infrastructure and morphologic, morphometric, and computer-aided quantitative analyses...
August 30, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28664406/renal-biopsy-driven-molecular-target-identification-in-glomerular-disease
#2
REVIEW
Maja T Lindenmeyer, Matthias Kretzler
Chronic kidney disease has severe impacts on the patient and represents a major burden to the health care systems worldwide. Despite an increased knowledge of pathophysiological processes involved in kidney diseases, the progress in defining novel treatment strategies has been limited. One reason is the descriptive disease categorization used in nephrology based on clinical findings or histopathological categories irrespective of potential different molecular disease mechanisms. To accelerate progress toward a targeted treatment, a definition of human disease extending from phenotypic disease classification to mechanism-based disease definitions is needed...
August 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28638600/quantification-of-bleeding-volume-using-computed-tomography-and-clinical-complications-after-percutaneous-renal-biopsy
#3
Yoichiro Chikamatsu, Ken Matsuda, Yoichi Takeuchi, Saeko Kagaya, Yoshie Ojima, Hirotaka Fukami, Hiroyuki Sato, Ayako Saito, Yoshitsugu Iwakura, Tasuku Nagasawa
Background: The aim of this study was to investigate specific bleeding volume after percutaneous renal biopsy (PRB) and the correlation between bleeding volume and clinical parameters. Methods: A retrospective study of 252 consecutive patients (153 male patients and 99 female patients) who underwent PRB at the Department of Nephrology, Japanese Red Cross Ishinomaki Hospital, between July 2013 and January 2016 was conducted. PRB was performed under ultrasound guidance using an automated spring-loaded biopsy device and a 16-cm, 16-gauge needle...
February 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28648933/effectiveness-and-safety-of-two-18-gauge-needle-types-on-native-and-allograft-renal-biopsies
#4
Clarissa A Cassol, Juarez R Braga, Samer Dabbo, K Khalili, C Avila-Casado
Percutaneous biopsy is a key diagnostic tool for both native and allograft kidney diseases. Adequacy criteria vary, but at a minimum, a biopsy should allow the pathologist to reach a diagnosis and provide prognostic information such as the degree of interstitial fibrosis and tubular atrophy (IF/TA) and percentage of glomerulosclerosis. Whereas most studies use glomerular counts as a surrogate for biopsy adequacy, the amount and preservation of tubulointerstitium is equally important, considering IF/TA is a major prognostic parameter for most medical renal diseases...
June 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28523502/maldi-ms-imaging-in-the-study-of-glomerulonephritis
#5
Andrew Smith, Manuel Galli, Vincenzo L'Imperio, Fabio Pagni, Fulvio Magni
Glomerulonephritis (GNs) are one of the most frequent causes of chronic kidney disease (CKD), a renal condition that often leads to end-stage renal failure, and a careful assessment of these diseases is essential for prognostic and therapeutic purposes. The application of MALDI-MSI directly on bioptic renal tissue represents a new stimulating perspective and facilitates the detection of specific proteomic indicators that are directly correlated with the pathological alterations that occur within the glomeruli during the development of glomerulonephritis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28601117/tubular-urinary-indexes-reliably-distinguish-between-primary-tubulointerstitial-and-primary-glomerular-diseases-in-patients-referred-for-kidney-biopsy
#6
Andrej Škoberne, Špela Borštnar, Nuša Avguštin, Damjan Kovač, Andreja Aleš Rigler, Željka Večerić-Haler, Jernej Pajek, Mladen Krsnik, Nika Kojc, Dušan Ferluga, Jelka Lindič
AIMS: Kidney biopsy remains the gold standard for accurately diagnosing renal diseases. Urinalysis and assessment of renal function are the cornerstones for assessment of patients prior to biopsy. There is significant overlap in the results of routine urine parameters (proteinuria, erythrocyturia, leukocyturia) among different kidney diseases, which hinders the possibility of adequately estimating disease etiology prior to the biopsy. The aim of our study was to assess whether diverse markers of glomerular and tubular proteinuria - urinary albumin, IgG, α-1-microglobulin (α-1-m) and N-acetyl-β-D-glucosaminidase (NAG) - are capable of distinguishing between patients with primary tubulointerstitial (TID) and primary glomerular disease (GLOM)...
June 9, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28418995/kidney-biopsy-yield-an-examination-of-influencing-factors
#7
Miroslav Sekulic, Gretchen S Crary
Kidney biopsies are conducted under varying scenarios, presenting variables that could potentially influence yield and adequacy of tissue collected. We retrospectively reviewed 636 native and allograft kidney biopsies, and compared tissue collected between differing practitioners performing the biopsy (nephrologists or radiologists), imaging modalities for guidance (ultrasound or computed tomography), gauge needle used (18 or 16 G), and between on-site evaluators of biopsy adequacy conducted at the time of biopsy (general pathologists, renal pathologists, nephrologists)...
July 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28419667/a-simple-risk-score-for-prediction-of-hemorrhagic-complications-after-a-percutaneous-renal-biopsy
#8
Juan M Mejía-Vilet, Manuel A Márquez-Martínez, Bertha M Cordova-Sanchez, Mónica Chapa Ibargüengoitia, Ricardo Correa-Rotter, Luis E Morales-Buenrostro
AIM: To derive a simple risk score to predict the individual risk of major complications for patients undergoing a percutaneous renal biopsy procedure of native kidneys. METHODS: The risk score was derived from a cohort of 1,205 adult patients subject to percutaneous renal biopsy and assigned to training and validation datasets. Factors associated with major complications were derived from univariate analysis and then modeled by stepwise multivariate logistic regression...
April 16, 2017: Nephrology
https://www.readbyqxmd.com/read/28359537/macrophage-density-in-early-surveillance-biopsies-predicts-future-renal-transplant-function
#9
Jan Hinrich Bräsen, Abedalrazag Khalifa, Jessica Schmitz, Wei Dai, Gunilla Einecke, Anke Schwarz, Michael Hallensleben, Bernhard M W Schmidt, Hans H Kreipe, Hermann Haller, Sibylle von Vietinghoff
Inflammation impairs renal allograft survival but is difficult to quantify by eye at low densities. Here we measured leukocyte abundance in early surveillance biopsies by digital image analysis to test for a role of chemokine receptor genotypes and analyze the predictive value of leukocyte subsets to allograft function. In six-week surveillance biopsies, T-cell (CD3), B-cell (CD20), macrophage (CD68), and dendritic cell (CD209) densities were assessed in whole slide scans. Renal cortical CD3, CD20, and CD68 were significantly higher in histologic rejection...
March 27, 2017: Kidney International
https://www.readbyqxmd.com/read/28352011/biopsy-of-small-kidneys-a-safe-and-a-useful-guide-to-potentially-treatable-kidney-disease
#10
Kamel El-Reshaid, Wael El-Reshaid, Dalal Al-Bader, Jozsef Varro, John Madda, Hosameldin Tawfik Sallam
Over the past four years, all patients with unexplained rapid progression of their renal disease were subjected to kidney biopsy, despite their small size (<9 cm), to define its etiology. Children, pregnant women, morbidly obese patients, and those with an unstable cardiovascular state, septicemia, bleeding diathesis as well as those kidney size with size <6 cm were excluded from the study. Doppler ultrasound was used to exclude renovascular/ischemic nephropathy. The procedure was performed by an interventional radiologist using a biopsy gun technique and under ultrasound guidance...
March 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28186959/percutaneous-ultrasound-guided-renal-biopsy-a-comparison-of-axial-vs-sagittal-probe-location
#11
REVIEW
Farnaz Shamshirgar, Seyed Morteza Bagheri
BACKGROUND: Renal biopsy is an important method for diagnosis of renal parenchymal abnormalities. Here, we compare the effectiveness and complications of percutaneous ultrasound-guided renal biopsy using axial vs. sagittal probe locations. METHODS: In a cross-sectional survey, in 2012, patients with a nephrologist order were biopsied by a radiology resident. Renal biopsy was done on 15 patients using axial (A group) and the same number of biopsies done with sagittal probe location (S group)...
June 1, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/27988214/characterization-of-glomerular-extracellular-matrix%C3%A2-by-proteomic-analysis-of-laser-captured-microdissected-glomeruli
#12
Liliane Hobeika, Michelle T Barati, Dawn J Caster, Kenneth R McLeish, Michael L Merchant
Abnormal extracellular matrix (ECM) remodeling is a prominent feature of many glomerular diseases and is a final common pathway of glomerular injury. However, changes in ECM composition accompanying disease-related remodeling are unknown. The physical properties of ECM create challenges for characterization of composition using standard protein extraction techniques, as the insoluble components of ECM are frequently discarded and many ECM proteins are in low abundance compared to other cell proteins. Prior proteomic studies defining normal ECM composition used a large number of glomeruli isolated from human kidneys retrieved for transplantation or by nephrectomy for cancer...
February 2017: Kidney International
https://www.readbyqxmd.com/read/27743724/retrospective-analysis-of-ultrasound-detected-bleeding-complications-after-ultrasound-guided-transcutaneous-kidney-biopsies
#13
Stephanie Preuss, Claudius Kuechle, Stefan Wagenpfeil, Christoph Schmaderer, Lutz Renders, Uwe Heemann, Konrad Stock
The aim of this retrospective single-center study was to examine ultrasound-detected complications after diagnostic parenchymal renal biopsies. After 471 ultrasound-guided kidney biopsies (225 native kidneys and 246 renal allografts), ultrasound revealed hematomas (21.9%), arterio-venous fistulas (8.9%), active bleeding (1.1%) and hematuria (0.4%). Only 0.8% of all patients required invasive intervention such as coiling (n = 3) and surgical procedures (n = 1). Three episodes of bleeding (0.6%) were solved with manual compression...
January 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/26984953/measuring-the-intrarenal-distribution-of-glomerular-volumes-from-histological-sections
#14
Bradley D Hann, Edwin J Baldelomar, Jennifer R Charlton, Kevin M Bennett
Glomerular volume is an important metric reflecting glomerular filtration surface area within the kidney. Glomerular hypertrophy, or increased glomerular volume, may be an important marker for renal stress. Current stereological techniques report the average glomerular volume (AVglom) within the kidney. These techniques cannot assess the spatial or regional heterogeneity common in developing renal pathology. Here, we report a novel "unfolding" technique to measure the actual distribution of individual glomerular volumes in a kidney from the two-dimensional glomerulus profiles observed by optical microscopy...
June 1, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27023834/new-approaches-in-renal-microscopy-volumetric-imaging-and-superresolution-microscopy
#15
REVIEW
Alfred H J Kim, Hani Suleiman, Andrey S Shaw
PURPOSE OF REVIEW: Histologic and electron microscopic analysis of the kidney has provided tremendous insight into structures such as the glomerulus and nephron. Recent advances in imaging, such as deep volumetric approaches and superresolution microscopy, have the capacity to dramatically enhance our current understanding of the structure and function of the kidney. Volumetric imaging can generate images millimeters below the surface of the intact kidney. Superresolution microscopy breaks the diffraction barrier inherent in traditional light microscopy, enabling the visualization of fine structures...
May 2016: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/26892051/renal-biopsy-for-medical-renal-disease-indications-and-contraindications
#16
REVIEW
Jathin Bandari, Thomas W Fuller, Robert M Turner Іі, Louis A D'Agostino
INTRODUCTION: Percutaneous renal biopsy (PRB) is a safe and effective modality for sampling kidney tissue. In limited circumstances, alternative methods for kidney biopsy may be indicated. Historical contraindications for PRB such as bleeding diathesis, morbid obesity and solitary kidney have been called into question in the literature. We present a review of the literature on PRB and the risks and benefits associated with alternatives. MATERIALS AND METHODS: A review of the literature was performed through MEDLINE and PubMed...
February 2016: Canadian Journal of Urology
https://www.readbyqxmd.com/read/26844777/renal-biopsy-in-2015-from-epidemiology-to-evidence-based-indications
#17
REVIEW
Marco Fiorentino, Davide Bolignano, Vladimir Tesar, Anna Pisano, Wim Van Biesen, Graziella D'Arrigo, Giovanni Tripepi, Loreto Gesualdo
BACKGROUND: Although the number of patients reaching end-stage kidney disease without a biopsy-proven diagnosis is increasing, the utility of renal biopsy is still an object of debate. We analyzed epidemiological data and the main indications for renal biopsy with a systematic, evidence-based review at current literature. SUMMARY: There is a high discrepancy observed in biopsy rates and in the epidemiology of glomerular diseases worldwide, related to the different time frame of the analyzed reports, lack of data collection, the different reference source population and the heterogeneity of indications...
2016: American Journal of Nephrology
https://www.readbyqxmd.com/read/26339068/the-native-kidney-biopsy-update-and-evidence-for-best-practice
#18
REVIEW
Jonathan J Hogan, Michaela Mocanu, Jeffrey S Berns
The kidney biopsy is the gold standard in the diagnosis and management of many diseases. Since its introduction in the 1950s, advancements have been made in biopsy technique to improve diagnostic yield while minimizing complications. Here, we review kidney biopsy indications, techniques, and complications in the modern era. We also discuss patient populations in whom special consideration must be given when considering a kidney biopsy and the important role that the kidney biopsy plays in nephrology training...
February 5, 2016: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/26312144/what-is-the-best-way-to-measure-renal-fibrosis-a-pathologist-s-perspective
#19
Alton B Farris, Charles E Alpers
Interstitial fibrosis is a hallmark structural correlate of progressive and chronic kidney disease. There remain many uncertainties about how to best measure interstitial fibrosis both in research settings and in evaluations of renal biopsies performed for management of individual patients. Areas of uncertainty include determination of the composition of the matrix in a fibrotic parenchyma, the definition of how the interstitium is involved by fibrosing injuries, the choice of histologic stains for evaluation of renal fibrosis, and the reproducibility and robustness of measures currently employed by pathologists, both with and without the assistance of computerized imaging and assessments...
November 2014: Kidney International Supplements
https://www.readbyqxmd.com/read/26289029/high-resolution-three-dimensional-digital-imaging-of-the-human-renal-microcirculation-an-aid-to-evaluating-microvascular-alterations-in-chronic-kidney-disease-in-humans
#20
Noriko Uesugi, Yoshihito Shimazu, Takaaki Aoba, Kazunori Kikuchi, Michio Nagata
We have developed a new virtual microscopy method, with two- and three-dimensional (2D, 3D) synchronization, that enables visualization of the human renal microvasculature. The method was used to evaluate 120-150 serially cut sections of paraffin-embedded human renal tissue from nephrectomized samples. Virtual microscopy images of sections double-immunostained with antibodies against CD34 (an endothelium marker) and smooth muscle actin (an arterial media marker) and stained with periodic acid-Schiff were processed using digital imaging analysis software...
November 2015: Pathology International
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