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Acute kidney injury ultrasound

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https://www.readbyqxmd.com/read/28764263/acute-pyelonephritis-correlation-of-clinical-parameter-with-radiological-imaging-abnormalities
#1
Leelavathi Venkatesh, Ramalingiah Karadakere Hanumegowda
INTRODUCTION: Pyelonephritis (PN) is a suppurative infection of the kidney, most commonly due to bacterial infection and may be either acute or chronic. Acute PN (APN) subdivided into uncomplicated and complicated. Severity of PN cannot be assessed by clinical or laboratorial parameters alone, radiological imaging such as Ultrasound (USG) abdomen, Computed Tomography (CT) is required to know the nature, extent and severity of disease and for planning interventions. AIM: The aim of this study was to compare clinical and biochemical parameters with radiological findings (USG/CT) among patients diagnosed to have PN...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28724126/comparative-outcomes-after-percutaneous-coronary-intervention-among-black-and-white-patients-treated-at-us-veterans-affairs-hospitals
#2
Taisei Kobayashi, Thomas J Glorioso, Ehrin J Armstrong, Thomas M Maddox, Mary E Plomondon, Gary K Grunwald, Steven M Bradley, Thomas T Tsai, Stephen W Waldo, Sunil V Rao, Subhash Banerjee, Brahmajee K Nallamothu, Deepak L Bhatt, A Garvey Rene, Robert L Wilensky, Peter W Groeneveld, Jay Giri
Importance: Current comparative outcomes among black and white patients treated with percutaneous coronary intervention (PCI) in the Veterans Affairs (VA) health system are not known. Objective: To compare outcomes between black and white patients undergoing PCI in the VA health system. Design, Setting, and Participants: This study compared black and white patients who underwent PCI between October 1, 2007, and September 30, 2013, at 63 VA hospitals using data recorded in the VA Clinical Assessment, Reporting, and Tracking System for Cardiac Catheterization Laboratories (CART-CL) program...
July 19, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28721513/does-pyuria-always-suggest-urinary-tract-infection-with-common-microorganisms-questions
#3
Mehmet Taşdemir, Hüseyin Kaya, Zeynep Atam Taşdemir
Genitourinary system tuberculosis (GUTB) is a chronic granulomatous infection in which tuberculous bacilli affect one or more organs in the genitourinary system. In this report, an unusual presentation of miliary tuberculosis was presented as GUTB. A 15-year-old girl presented with complaints of severe abdominal pain and dysuria. Abdominal examination showed tenderness and defense. Pyuria and microscopic hematuria were observed. Acute abdominal causes could not be excluded through abdominal ultrasound. On abdominal computed tomography, a necrotic lesion was detected in the right kidney...
July 18, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28715949/contrast-enhanced-ultrasound-for-assessing-renal-perfusion-impairment-and-predicting-acute-kidney-injury-to-chronic-kidney-disease-progression
#4
Wei Cao, Shuang Cui, Li Yang, Chunyi Wu, Jian Liu, Fang Yang, Youhua Liu, Jianping Bin, Fan Fan Hou
AIMS: Acute kidney injury (AKI) is increasingly recognized as a major risk factor leading to progression to chronic kidney disease (CKD). However, the diagnostic tools for predicting AKI to CKD progression are particularly lacking. Here, we tested the utility of contrast enhanced ultrasound (CEUS) for predicting progression to CKD after AKI by using both mild (20-minute) and severe (45-minute) bilateral renal ischemia/reperfusion injury (IRI) mice. RESULTS: Renal perfusion measured by CEUS reduced to 25%±7% and 14%±6% of the pre-ischemic levels in mild and severe AKI 1 hour after ischemia (P<0...
July 17, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28702139/ramipril-associated-cholestasis-in-the-setting-of-recurrent-drug-induced-liver-injury
#5
David Forner, Tasha Kulai, Thomas Arnason, Steven E Gruchy, Magnus MacLeod
Aim: Angiotensin-converting enzyme inhibitors (ACEIs) are commonly used to treat hypertension. Although generally well tolerated, the adverse effects of ACEIs include hypotension, cough, acute kidney injury and hyperkalemia. Rare reports of ACEI-induced hepatotoxicity have been described, most notably a cholestatic pattern of injury related to captopril. A 67-year-old male presented to the emergency department with a three-week history of jaundice, pruritis and weakness. Eight weeks before, he began taking ramipril and clopidogrel...
2017: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/28669550/sulfasalazine-induced-crystalluria-causing-severe-acute%C3%A2-kidney%C3%A2-injury
#6
Michael Durando, Hannah Tiu, James Soo Kim
Sulfasalazine is an anti-inflammatory agent commonly used in the treatment of autoimmune conditions such as inflammatory bowel disease and rheumatoid arthritis. Sulfasalazine is converted by gut bacteria into sulfapyridine and the clinically active metabolite 5-aminosalicylic acid (5-ASA), and its efficacy is proportional to the 5-ASA concentration within the intestinal lumen. Renal complications are commonly reported for the chemically similar 5-ASA derivative mesalamine, but are not well-known side effects of sulfasalazine therapy...
June 29, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28595190/nonpharmacological-biomechanical-approaches-to-control-inflammation-in-acute-kidney-injury
#7
Shinji Tanaka, Tsuyoshi Inoue, John A Hossack, Mark D Okusa
Inflammation is broadly recognized as an important factor in the pathogenesis of acute kidney injury (AKI), but pharmacological approaches to alleviate inflammation in AKI have been without success in clinical trials. Neuromodulation by nonpharmacological methods is emerging as a novel therapeutic strategy to treat inflammatory diseases. Recently, our group and others have demonstrated that vagus nerve stimulation and pulsed ultrasound ameliorated inflammation via the cholinergic anti-inflammatory pathway (CAP) in various animal models, including renal ischemia-reperfusion injury...
June 9, 2017: Nephron
https://www.readbyqxmd.com/read/28540907/oliguric-acute-kidney-injury-as-initial-presentation-of-renal-non-hodgkin-s-lymphoma-infiltration
#8
Tacyano T Leite, Alexandre B Libório, Geraldo B Silva Junior, Elizabeth De Francesco Daher
We report a case of a 20-year-old man presented to the emergency department with oliguria and renal failure requiring urgent dialysis. An ultrasound revealed enlarged kidneys, and a renal biopsy showed non-Hodgkin's lymphoma, subtype diffuse large B-cell.
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28514894/successful-repair-of-acute-type-b-and-retrograde-type-a-aortic-dissection-with-kidney-ischemia
#9
Jeko M Madjarov, Michael G Katz, Hector Crespo-Soto, Svetozar Madzharov, Timothy Roush, Francis Robicsek
Acute dissection of thoracic aorta carries a risk of renal ischemia followed by the development of a kidney failure. The optimal surgical and nonsurgical management of these patients, timing of intervention, and the factors predicting renal recovery are not well delineated and remain controversial. We present a case of acute type B thoracic aortic dissection with left kidney ischemia. Evaluation of renal function was performed by the means of internationally accepted Risk, Injury, Failure, Loss of kidney function, End stage kidney disease and Acute Kidney Injury Network classifications for acute kidney injury, renal duplex sonography, and intravascular ultrasound that demonstrated left renal artery dissection with a flap completely compressing the true lumen...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28480046/steroid-induced-tumour-lysis-syndrome-in-small-cell-lung-cancer
#10
Fasihul Khan, Shazeen Ayub, Qurrat Mehmood, Syed Fayyaz Hussain
A 64-year-old male presented to hospital with breathlessness and weight loss. Ultrasound-guided biopsy of supraclavicular lymph node confirmed a diagnosis of small-cell lung cancer. The patient was started on Dexamethasone 8 mg twice daily for symptom control while awaiting urgent oncology assessment. Three days later he was admitted with acute kidney injury and worsening breathlessness. Biochemical changes confirmed tumour lysis syndrome (TLS) that had occurred following steroid therapy. He was given allopurinol followed by rasburicase...
May 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28394520/-laparoscopic-partial-nephrectomy-with-superselective-balloon-embolization-of-renal-artery
#11
A V Maksimov, A G Martov, L P Pavlov, P A Neustroev, R R Vinokurov
AIM: To use superselective balloon embolization of segmental branches of the renal artery for intraoperative hemostasis during partial nephrectomy for renal malignancy. MATERIALS AND METHODS: From October 2015 to September 2016, 11 patients, including 3 males and 8 females aged 29-72 (mean 56.8) years underwent laparoscopic partial nephrectomy with superselective balloon embolization. In 5 and 6 cases the tumors were located in the right and left kidney, respectively, and in 7, 1 and 3 cases they were found in lower, upper and middle segments, respectively...
April 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28382533/quantified-kidney-echogenicity-in-mice-with-renal-ischemia-reperfusion-injury-evaluation-as-a-noninvasive-biomarker-of-acute-kidney-injury
#12
Shinya Murata, Noriyuki Sugiyama, Kentaro Maemura, Yoshinori Otsuki
The purpose is to evaluate quantified kidney echogenicity as a biomarker for the early diagnosis of acute kidney injury (AKI) and predicting progression to chronic kidney disease (CKD) in a mouse model of ischemia-reperfusion injury (IRI). Two separate protocols of murine models of IRI were used: (1) 10, 30, and 40 min of bilateral ischemia duration and (2) 45 and 60 min of unilateral ischemia duration. Renal echogenicity was measured with ultrasound and compared with serum creatinine or urine neutrophil gelatinase-associated lipocalin (NGAL) at various timepoints after IRI...
September 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28359305/antenatal-nephromegaly-and-propionic-acidemia-a-case-report
#13
Ségolène Bernheim, Georges Deschênes, Manuel Schiff, Isabelle Cussenot, Olivier Niel
BACKGROUND: Propionic acidemia (PA) is a rare but severe recessive autosomal disease, presenting with non specific signs in the first years of life. Prenatal diagnosis is invasive (amniocentesis) and limited to suspect cases. No screening test has been described, in particular no correlations between prenatal sonography and PA have been documented so far. CASE PRESENTATION: We report the case of a boy with fetal bilateral nephromegaly and hyperechogenic kidneys, along with neonatal acute kidney injury; no etiology could be found in the first months of life...
March 30, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28261499/focused-real-time-ultrasonography-for-nephrologists
#14
REVIEW
Matthew J Kaptein, Elaine M Kaptein
We propose that renal consults are enhanced by incorporating a nephrology-focused ultrasound protocol including ultrasound evaluation of cardiac contractility, the presence or absence of pericardial effusion, inferior vena cava size and collapsibility to guide volume management, bladder volume to assess for obstruction or retention, and kidney size and structure to potentially gauge chronicity of renal disease or identify other structural abnormalities. The benefits of immediate and ongoing assessment of cardiac function and intravascular volume status (prerenal), possible urinary obstruction or retention (postrenal), and potential etiologies of acute kidney injury or chronic kidney disease far outweigh the limitations of bedside ultrasonography performed by nephrologists...
2017: International Journal of Nephrology
https://www.readbyqxmd.com/read/28221154/prospective-outcomes-of-11-13ch-ultra-mini-percutaneous-nephrolithotomy-ump-a-consecutive-cohort-study
#15
Janak D Desai
Ultra mini PCNL (UMP) has been described as a less invasive technique of PCNL for the treatment of small to medium sized stones in attempt to reduce the surgical morbidity. OBJECTIVE: Evaluate prospectively the outcomes of UMP. METHODS: Single surgeon prospective concurrent cohort study of UMP in India. Effectiveness was assessed by stone-free rates, operative time, complications including transfusion, sepsis rates, length of stay and analgesic requirements. RESULTS: In 2013, data on 98 consecutive patients who underwent UMP was collected prospectively...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28191530/contrast-enhanced-ultrasound-a-promising-method-for-renal-microvascular-perfusion-evaluation
#16
REVIEW
Ling Wang, Chandra Mohan
This article reviews the application of contrast-enhanced ultrasound (CEUS) in gauging renal microvascular perfusion in diverse renal diseases. The unique nature of the contrast agents used in CEUS provides real-time and quantitative imaging of the vasculature. In addition to the traditional use of CEUS for evaluation of kidney masses, it also emerges as a safe and effective imaging approach to assess microvascular perfusion in diffuse renal lesions, non-invasively. Although the precise CEUS parameters that may best predict disease still warrant systematic evaluation, animal models and limited clinical trials in humans raise hopes that CEUS could outcompete competing modalities as a first-line tool for assessing renal perfusion non-invasively, even in ailments such as acute kidney injury and chronic kidney disease...
September 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28116780/r1-autonomic-nervous-system-in-acute-kidney-injury
#17
REVIEW
Dagmara Hering, Pawel J Winklewski
Acute kidney injury (AKI) is a rapid loss of kidney function resulting in accumulation of end metabolic products and associated abnormalities in fluid, electrolyte and acid-base homeostasis. The pathophysiology of AKI is complex and multifactorial involving numerous vascular, tubular and inflammatory pathways. Neurohumoral activation with heightened activity of the sympathetic nervous system and renin-angiotensin-aldosterone system play a critical role in this scenario. Inflammation and/or local renal ischaemia are underlying mechanisms triggering renal tissue hypoxia and resultant renal microcirculation dysfunction; a common feature of AKI occurring in numerous clinical conditions leading to a high morbidity and mortality rate...
February 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28011273/obstructive-nephropathy-without-hydronephrosis-suspicion-is-the-key
#18
Don H Esprit, Abhilash Koratala, Volodymyr Chornyy, Charles S Wingo
Urinary tract obstruction leading to acute kidney injury is usually associated with bilateral hydroureters and hydronephrosis, often accompanied by oliguria. We present an atypical case of obstructive uropathy without these features that presented with severe acute kidney injury. A 64-year-old male with no known medical history has presented with a 2-week history of nausea, decreased appetite, flank pain, and lower extremity edema, and was found to have an elevated creatinine of 10.5 mg/dL. Renal ultrasound showed mild prominence of the bilateral renal collecting systems with no evidence of hydronephrosis...
March 2017: Urology
https://www.readbyqxmd.com/read/27986479/prospective-nonrandomized-study-to-evaluate-endovascular-repair-of-pararenal-and-thoracoabdominal-aortic-aneurysms-using-fenestrated-branched-endografts-based-on-supraceliac-sealing-zones
#19
Gustavo S Oderich, Mauricio Ribeiro, Jan Hofer, Jean Wigham, Stephen Cha, Julia Chini, Thanila A Macedo, Peter Gloviczki
PURPOSE: To investigate outcomes of manufactured fenestrated and branched endovascular aortic repair (F-BEVAR) endografts based on supraceliac sealing zones to treat pararenal aortic aneurysms and thoracoabdominal aortic aneurysms (TAAAs). METHODS: A total of 127 patients (91 male; mean age, 75 ± 10 years old) were enrolled in a prospective, nonrandomized single-center study using manufactured F-BEVAR (November 2013-March 2015). Stent design was based on supraceliac sealing zone in all patients with ≥ four vessels in 111 (89%)...
May 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27965714/doppler-ultrasound-in-kidney-diseases-a-key-parameter-in-clinical-long-term-follow-up
#20
REVIEW
Leonardo Spatola, Simeone Andrulli
Doppler ultrasound has been extensively used in detecting reno-vascular diseases, showing to be a non-invasive, safe, low cost and repeatable tool. The Renal Resistive Index (RRI) [(peak systolic velocity - end diastolic velocity)/peak systolic velocity] is a semi-quantitative index derived by Doppler evaluation of renal vascular bed. Normally RRI is in the range of 0.47-0.70, it increases with aging and, usually, it shows a difference between the two kidneys less than 5-8 %. RRI is an important prognostic marker in chronic kidney diseases (CKD), both in diabetic and non-diabetic kidney diseases, because, in longitudinal prospective studies, it significantly correlated with hemodynamic (ABPM, SBP, DBP, pulse pressure) and histopathological parameters (glomerular sclerosis, arteriolosclerosis, interstitial fibrosis/tubular atrophy, interstitial infiltration)...
December 2016: Journal of Ultrasound
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