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AKI Ultrasound

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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
#1
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...
April 5, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28116780/r1-autonomic-nervous-system-in-acute-kidney-injury
#2
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/27965714/doppler-ultrasound-in-kidney-diseases-a-key-parameter-in-clinical-long-term-follow-up
#3
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
https://www.readbyqxmd.com/read/27895448/neonatal-acute-kidney-injury-following-valsartan-exposure-in-utero-report-of-two-cases
#4
E Tsepkentzi, K Sarafidis, A Sotiriadis, K Chatzistamatiou, V Drossou-Agakidou
BACKGROUND: Maternal sartan intake during pregnancy has been associated with several fetal/neonatal complications related to disturbed renal development. Description of cases: We present two cases of neonatal acute kidney injury (AKI) following valsartan administration during pregnancy and provide evidence for the use of novel AKI biomarkers in these neonates. The first case was a female neonate, delivered at 32+4 weeks of gestation after maternal valsartan intake from 24 to 32 gestational weeks...
January 2016: Hippokratia
https://www.readbyqxmd.com/read/27779134/a-numerical-study-on-the-oblique-focus-in-mr-guided-transcranial-focused-ultrasound
#5
Alec Hughes, Yuexi Huang, Aki Pulkkinen, Michael L Schwartz, Andres M Lozano, Kullervo Hynynen
Recent clinical data showing thermal lesions from treatments of essential tremor using MR-guided transcranial focused ultrasound shows that in many cases the focus is oblique to the main axis of the phased array. The potential for this obliquity to extend the focus into lateral regions of the brain has led to speculation as to the cause of the oblique focus, and whether it is possible to realign the focus. Numerical simulations were performed on clinical export data to analyze the causes of the oblique focus and determine methods for its correction...
November 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27773550/association-between-rice-bread-and-noodle-intake-and-the-prevalence-of-non-alcoholic-fatty-liver-disease-in-japanese-middle-aged-men-and-women
#6
Ryoko Tajima, Takeshi Kimura, Ayaka Enomoto, Kaede Yanoshita, Aki Saito, Satomi Kobayashi, Katsunori Masuda, Kaoruko Iida
BACKGROUND & AIMS: Prevention of non-alcoholic fatty liver disease (NAFLD) through lifestyle modification is an important public health issue. Carbohydrate intake from soft drinks has received particular interest. Owing to differences in dietary habits, however, major contributors to the intake of dietary carbohydrates, such as rice, bread, and noodles, might have more influence on NAFLD prevalence in East Asian countries than consumption of soft drinks. We examined the relationship of the intake of rice, bread, and noodles, as well as overall carbohydrate intake, with NAFLD prevalence in middle-aged Japanese...
October 8, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27743614/reliability-of-bedside-ultrasound-for-measurement-of-quadriceps-muscle-thickness-in-critically-ill-patients-with-acute-kidney-injury
#7
Alice Sabatino, Giuseppe Regolisti, Laura Bozzoli, Filippo Fani, Riccardo Antoniotti, Umberto Maggiore, Enrico Fiaccadori
MAIN PROBLEM: In patients with Acute Kidney Injury there is a lack of nutritional variables that can assess nutritional status, more specifically lean body mass (LBM) and skeletal muscle mass, at the individual level. In this clinical setting, ultrasound (US)) of the quadriceps femoris could represent a widely available, non-invasive, affordable, and reliable tool to evaluate skeletal muscle. METHODS: We performed a cross-sectional observational study in adult critically ill patients with KDIGO stage 3 AKI on dialysis...
October 1, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27490643/neonatal-acute-kidney-injury-and-the-risk-of-intraventricular-hemorrhage-in-the-very-low-birth-weight-infant
#8
Christine Stoops, Brian Sims, Russell Griffin, D J Askenazi
Despite improvements in survival of premature infants, many have comorbid conditions. The role of the kidney in multiorgan dysfunction is unclear, particularly in regard to intraventricular hemorrhage (IVH). We hypothesized that infants diagnosed with acute kidney injury (AKI) have an increased risk of IVH independent of gestational age (GA) and other variables associated with both comorbidities. This prospective cohort study consisted of 125 infants with a birth weight ≤1,200 g and/or GA ≤31 weeks. A definition of AKI was used from KDIGO, not including urine output as nonoliguria is common in this population...
2016: Neonatology
https://www.readbyqxmd.com/read/27478666/ultrasound-guidance-in-performing-a-tendoscopic-surgery-to-treat-posterior-tibial-tendinitis-a-useful-tool
#9
Akinobu Nishimura, Shigeto Nakazora, Aki Fukuda, Ko Kato, Akihiro Sudo
A 25-year-old man with a pronation-external rotation type of fracture was surgically treated using a fibular plate. Five years later, he underwent resection of bone hyperplasia because of the ankle pain and limitation of range of motion. Thereafter, the left ankle became intermittently painful, which persisted for about one year. He presented at the age of 43 with persistent ankle pain. Physical and image analysis findings indicated a diagnosis of posttraumatic posterior tibial tendinitis, which we surgically treated using tendoscopy...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27466865/accuracy-of-intravascular-ultrasound-evaluation-for-the-assessment-of-native-valve-measures-in-patients-undergoing-tavi-preliminary-results
#10
Emanuela de Cillis, Annamaria Dachille, Francesco Giardinelli, Tommaso Acquaviva, Alessandro Santo Bortone
INTRODUCTION: Transcatheter aortic valve implantation (TAVI) technique represents a real revolution in the field of interventional cardiology and medicine, in particular for the treatment of severe aortic valve stenosis in elderly patients or in patients when the periprocedural risk for the traditional surgical option is considered too high, as an alternative to the traditional aortic valve replacement. Although experience on the valves of the last generation is still limited in terms of time, the data currently available are definitely moving in the direction of a minimum hospital mortality (1%) as well as a drastic reduction in the incidence of complications when compared to the devices of the previous generation...
July 29, 2016: Surgical Technology International
https://www.readbyqxmd.com/read/27458386/intra-parenchymal-renal-resistive-index-variation-irriv-describes-renal-functional-reserve-rfr-pilot-study-in-healthy-volunteers
#11
Sara Samoni, Federico Nalesso, Mario Meola, Gianluca Villa, Massimo De Cal, Silvia De Rosa, Ilaria Petrucci, Alessandra Brendolan, Mitchell H Rosner, Claudio Ronco
An increase of glomerular filtration rate after protein load represents renal functional reserve (RFR) and is due to afferent arteriolar vasodilation. Lack of RFR may be a risk factor for acute kidney injury (AKI), but is cumbersome to measure. We sought to develop a non-invasive, bedside method that would indirectly measure RFR. Mechanical abdominal pressure, through compression of renal vessels, decreases blood flow and activates the auto-regulatory mechanism which can be measured by a fall in renal resistive index (RRI)...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27423871/non-alcoholic-fatty-liver-disease-with-and-without-metabolic-syndrome-different-long-term-outcomes
#12
Aki Juhani Käräjämäki, Risto Bloigu, Heikki Kauma, Y Antero Kesäniemi, Olli-Pekka Koivurova, Juha Perkiömäki, Heikki Huikuri, Olavi Ukkola
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) and metabolic syndrome (MetS) are both shown to increase the risk of cardiovascular diseases and type 2 diabetes. However, there is a great overlap between these two diseases. The present study was aimed to examine the cardiovascular and metabolic prognosis of non-alcoholic fatty liver disease with and without metabolic syndrome. METHODS: Middle-aged subjects (n=958) were divided into four subgroups, those with NAFLD and MetS, those with NAFLD or MetS, and healthy controls...
January 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/27316915/french-intensive-care-society-international-congress-r%C3%A3-animation-2016
#13
(no author information available yet)
No abstract text is available yet for this article.
June 2016: Annals of Intensive Care
https://www.readbyqxmd.com/read/27190380/lung-ultrasound-a-novel-technique-for-detecting-fluid-overload-in-children-on-dialysis
#14
Marco Allinovi, Moin Saleem, Paola Romagnani, Peiman Nazerian, Wesley Hayes
Background: Optimizing the target weight of infants and children on dialysis remains an important clinical challenge. The use of ultrasound to detect fluid overload in adult patients on dialysis is receiving growing attention. We hypothesized that fluid overload can be quantified in infants and children receiving dialysis using lung ultrasound. Methods: In this prospective observational study, infants and children receiving dialysis for end-stage renal disease (ESRD) or acute kidney injury (AKI) in a regional paediatric nephrology centre were eligible...
March 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27170038/clinical-scenarios-in-acute-kidney-injury-parenchymal-acute-kidney-injury-vascular-diseases
#15
Mario Meola, Sara Samoni, Ilaria Petrucci, Claudio Ronco
Acute cortical necrosis and hemolytic uremic syndrome (HUS) are 2 clinical scenarios of parenchymal acute kidney injury (AKI) related to renal microvascular injury. Acute cortical necrosis is a rare condition related to an ischemic necrosis of renal cortex. Necrotic lesions can be due to several injuries and may be focal, multifocal or diffuse. Renal necrotic lesions become visible with ultrasound only after renal recovery. HUS is a rare disease characterized by hemolytic anemia, thrombocytopenia and AKI. Color Doppler ultrasound is useful during diagnostic and follow-up phase...
2016: Contributions to Nephrology
https://www.readbyqxmd.com/read/27169885/clinical-scenarios-in-acute-kidney-injury-parenchymal-acute-kidney-injury-tubulo-interstitial-diseases
#16
Mario Meola, Sara Samoni, Ilaria Petrucci, Claudio Ronco
Acute tubular necrosis (ATN) is the most common type of acute kidney injury (AKI) related to parenchymal damage (90% of cases). It may be due to a direct kidney injury, such as sepsis, drugs, toxins, contrast media, hemoglobinuria and myoglobinuria, or it may be the consequence of a prolonged systemic ischemic injury. Conventional ultrasound (US) shows enlarged kidneys with hypoechoic pyramids. Increased volume is largely sustained by the increase of anteroposterior diameter, while longitudinal axis usually maintains its normal length...
2016: Contributions to Nephrology
https://www.readbyqxmd.com/read/27169556/ultrasound-in-acute-kidney-disease
#17
Mario Meola, Federico Nalesso, Ilaria Petrucci, Sara Samoni, Claudio Ronco
Kidneys' imaging provides useful information in acute kidney injury (AKI) diagnosis and management. Today, several imaging techniques give information on kidneys anatomy, urinary obstruction, differential diagnosis between AKI and chronic kidney disease (CKD), renal blood flow and glomerular filtration rate. Ultrasound is a safe, non-invasive and repeatable imaging technique so it is widely used in the first level work-up of AKI. The utility of contrast-enhanced computed tomography and magnetic resonance imaging in AKI or in AKI during CKD is limited because of renal toxicity associated with contrast agents used...
2016: Contributions to Nephrology
https://www.readbyqxmd.com/read/27118748/severe-acute-kidney-injury-as-presentation-of-burkitt-s-lymphoma
#18
Eva ter Haar, Veerle Labarque, Thomas Tousseyn, Djalila Mekahli
We discuss a case of acute kidney injury (AKI) at a very young age caused by primary lymphomatous renal infiltration due to Burkitt's lymphoma and analyse the literature on this rare condition. At presentation, clinical examination showed impressive bilateral nephromegaly and hypertension. Blood analysis indicated severe AKI, mild anaemia and normal serum electrolytes. There were no signs of tumour lysis syndrome. Urine sediment was normal, with neither haematuria nor proteinuria. Abdominal ultrasound demonstrated bilateral renal enlargement (+12 SD), with increased corticomedullar differentiation...
April 26, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27106341/image-reconstruction-with-uncertainty-quantification-in-photoacoustic-tomography
#19
Jenni Tick, Aki Pulkkinen, Tanja Tarvainen
Photoacoustic tomography is a hybrid imaging method that combines optical contrast and ultrasound resolution. The goal of photoacoustic tomography is to resolve an initial pressure distribution from detected ultrasound waves generated within an object due to an illumination of a short light pulse. In this work, a Bayesian approach to photoacoustic tomography is described. The solution of the inverse problem is derived and computation of the point estimates for image reconstruction and uncertainty quantification is described...
April 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27064240/acute-kidney-injury-in-patients-with-kawasaki-disease
#20
Gwo-Tsann Chuang, I-Jung Tsai, Ming-Tai Lin, Luan-Yin Chang
BACKGROUND: Kawasaki disease was well known for coronary artery abnormalities with few reports of incidence of acute kidney injury (AKI). Our aim was to identify the rate of AKI in patients with Kawasaki disease and its associated factors. METHODS: All patients with Kawasaki disease admitted to a medical center from February 2004 to August 2014 were evaluated. Data collection included serum creatinine level, serial echocardiography reports, white blood cell count, C-reactive protein level, alanine transaminase level, urine white blood cell count, and renal ultrasound reports if available...
August 2016: Pediatric Research
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