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renal resistive index

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https://www.readbyqxmd.com/read/29450973/difference-between-renal-and-splenic-resistive-index-as-a-novel-criterion-in-doppler-evaluation-of-renal-artery-stenosis
#1
Clemens Grupp, Michael J Koziolek, Manuel Wallbach, Kerstin Hoxhold, Gerhard A Müller, Carsten Bramlage
Detection of renal artery stenosis (RAS) using Doppler is difficult to evaluate, particularly under conditions such as bilateral RAS or difficultly accessible renal arteries (RA). The objective of the present study was to assess the utility of splenic arterial compared to renal flow as an additional parameter in the Doppler evaluation of RAS. The difference between the resistive indices (RI) determined in renal and splenic parenchymal arteries (ΔRI K-S ) was evaluated in 181 hypertensive subjects without any evidence of RAS...
February 16, 2018: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/29450962/renal-resistive-index-for-renovascular-hypertension-in-the-quest-of-the-holy-grail
#2
Konstantinos Stavropoulos, Konstantinos P Imprialos, Vasilios G Athyros, Michael Doumas
No abstract text is available yet for this article.
February 16, 2018: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/29427619/the-association-of-aortic-valve-pathology-with-renal-resistive-index-as-a-kidney-injury-biomarker
#3
Benjamin Y Andrew, Anne D Cherry, Jennifer N Hauck, Alina Nicoara, Cory D Maxwell, Ryan M Konoske, Annemarie Thompson, Lakshmi D Kartha, Madhav Swaminathan, Mark Stafford-Smith
BACKGROUND: Acute kidney injury (AKI) is a common serious complication following cardiac surgery. Doppler-determined renal resistive index (RRI) is a promising early AKI biomarker in this population. However, the relationship between aortic valve pathology (insufficiency and/or stenosis) and RRI is unknown. This study aimed to investigate RRI variability related to aortic valve pathology. METHODS: In a retrospective review of cardiac surgery patients, RRI and aortic valve pathology were assessed prior to cardiopulmonary bypass using transesophageal echocardiography...
February 7, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29405326/hemodynamic-effects-of-connection-to-continuous-renal-replacement-therapy-in-a-pediatric-animal-model
#4
Sarah Nicole Fernández Lafever, Maria Jose Santiago, Jorge López, Rafael González, María José Solana, Javier Urbano, Jesus Lopez-Herce
To assess the hemodynamic effects of connection to continuous renal replacement therapy (CRRT) in a pediatric experimental animal model. Prospective experimental study was performed using piglets between 2 and 3 months of age and 9-11 kg. CRRT with a PrismaflexR monitor and HF20 filter (surface of 0.2 m2 ) was started after monitoring and anesthetic induction with an initial blood flow at 20 mL/min with 10 mL/min increases every minute until the goal flow of 5 mL/kg/min was achieved. Heart rate, blood pressure, central venous pressure, cardiac index, and renal blood flow were registered at baseline, 5, 15, 30, 60, 120, 180, 240, and 360 min...
February 6, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29398463/coexistence-of-septic-and-crystal-induced-arthritis-a-diagnostic-challenge-a-report-of-25-cases
#5
Águeda Prior-Español, Yaiza García-Mira, Sonia Mínguez, Melania Martínez-Morillo, Laia Gifre, Lourdes Mateo
OBJECTIVE: Septic arthritis is a medical emergency and crystal-induced arthritis is a risk factor for its development. If both occur simultaneously, crystal-induced arthritis may mask the diagnosis of infection and delay antibiotic therapy. METHOD: Retrospective analysis of patients with coexistence of septic and crystal-induced arthritis. We included only patients with isolation of crystals in synovial fluid analysis and positive culture of synovial fluid and/or blood culture...
February 1, 2018: Reumatología Clinica
https://www.readbyqxmd.com/read/29398426/the-influence-of-fluid-management-on-outcomes-in-preeclampsia-a-systematic-review-and-meta-analysis
#6
T Pretorius, G van Rensburg, R A Dyer, B M Biccard
BACKGROUND: The optimal fluid management strategy to ensure best outcomes in preeclamptic patients remains a controversial issue, with little evidence to support any one approach. OBJECTIVE: The aim of this systematic review was to investigate the effect of various fluid management strategies on clinical outcomes, haemodynamic indices and biochemical markers in preeclamptic women and their babies. Primary outcome measures were the occurrence of pulmonary oedema and/or the development of renal impairment...
December 20, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/29375893/a-comparative-ultrasonographic-evaluation-of-intrarenal-artery-resistive-index-among-hypertensive-and-normotensive-adults-in-a-black-african-population-compared-to-a-european-population
#7
George Madubueze, Emmanuel Ugwa
Background: Hypertensive nephropathy is an important medical problem among the black African population. Early detection of renovascular changes using ultrasonography can provide opportunity for immediate intervention towards preventing or at least delaying the irreversible hypertensive nephropathy. Purpose: To compare intrarenal resistive index (RI) in healthy normotensive and hypertensive adults in Kano, Nigeria. Material and Methods: A prospective comparative study of intrarenal RI using ultrasound in 150 hypertensives and 150 normotensive controls...
January 2018: Acta Radiologica Open
https://www.readbyqxmd.com/read/29372357/micro-ureteroscopy-vs-ureteroscopy-effects-of-miniaturization-on-renal-vascularization-and-intrapelvic-pressure
#8
Juan-Pablo Caballero-Romeu, Jua-Antonio Galán-Llopis, Federico Soria, Esther Morcillo-Martín, Pablo Caballero-Pérez, Alejandro Garcia, Julia E De La Cruz-Conty, Jesús Romero-Maroto
PURPOSE: Ureteroscopy (URS) is related to complications, as fever or postoperative urinary sepsis, due to high intrapelvic pressure (IPP) during the procedure. Micro-ureteroscopy (m-URS) aims to reduce morbidity by miniaturizing the instrument. The objective of this study is to compare IPP and changes in renal haemodynamics, while performing m-URS vs. conventional URS. METHODS: A porcine model involving 14 female pigs was used in this experimental study. Two surgeons performed 7 URS (8/9...
January 25, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29369449/biomarkers-for-acute-kidney-injury-in-decompensated-cirrhosis-a-prospective-study
#9
David A Jaques, Laurent Spahr, Gregory Berra, Vincent Poffet, Pierre Lescuyer, Eric Gerstel, Nicolas Garin, Pierre-Yves Martin, Belen Ponte
BACKGROUND: Acute kidney injury (AKI) is a frequent complication in cirrhotic patients. As serum creatinine is a poor marker of renal function in this population, we aimed to study the utility of several biomarkers in this context. METHODS: A prospective study was conducted in hospitalized patients with decompensated cirrhosis. Serum creatinine (SCr), Cystatin C (CystC), NGAL and urinary NGAL, KIM-1, protein, albumin and sodium were measured on three separate occasions...
January 25, 2018: Nephrology
https://www.readbyqxmd.com/read/29352146/effects-of-renal-denervation-on-cardiac-structural-and-functional-abnormalities-in-patients-with-resistant-hypertension-or-diastolic-dysfunction
#10
Shiying Wang, Suxia Yang, Xinxin Zhao, Jun Shi
The aim of the present study is to systematically evaluate the impact of RDN on cardiac structure and function in patients with resistant hypertension (RH) or diastolic dysfunction. We retrieved Pubmed, Embase and Cocharane Library databases, from inception to April 1st, 2016. Studies reporting left ventricular mass (LVMI) or left ventricular (LV) diastolic function (reflected by the ratio of mitral inflow velocity to annular relaxation velocity [E/e']) responses to RDN were included. Two randomized controlled trials (RCTs), 3 controlled studies and 11 uncontrolled studies were finally identified...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29346779/predictors-of-recoverability-of-renal-function-after-pyeloplasty-in-adults-with-ureteropelvic-junction-obstruction
#11
Xiao-Dong Li, Yu-Peng Wu, Yong Wei, Shao-Hao Chen, Qing-Shui Zheng, Hai Cai, Xue-Yi Xue, Ning Xu
BACKGROUND: This study aimed to identify factors predicting the recoverability of renal function after pyeloplasty in adult patients with ureteropelvic junction obstruction. METHODS: We retrospectively reviewed 138 adults with unilateral renal obstruction-induced hydronephrosis and who underwent Anderson-Hynes dismembered pyeloplasty from January 2013 to January 2016. Hydronephrosis was classified preoperatively according to the Society for Fetal Urology (SFU) grading system...
January 18, 2018: Urologia Internationalis
https://www.readbyqxmd.com/read/29316186/organ-damage-changes-in-patients-with-resistant-hypertension-randomized-to-renal-denervation-or-spironolactone-the-denervhta-denervaci%C3%A3-n-en-hipertensi%C3%A3-n-arterial-study
#12
Anna Oliveras, Pedro Armario, Laia Sans, Albert Clarà, Susana Vázquez, Luis Molina, Júlia Pareja, Alejandro de la Sierra, Julio Pascual
Renal denervation and spironolactone have both been proposed for the treatment of resistant hypertension, but their effects on preclinical target organ damage have not been compared. Twenty-four patients with 24-hour systolic blood pressure ≥140 mm Hg despite receiving three or more full-dose antihypertensive drugs, one a diuretic, were randomized to receive spironolactone or renal denervation. Changes in 24-hour blood pressure, urine albumin excretion, arterial stiffness, carotid intima-media thickness, and left ventricular mass index were evaluated at 6 months...
January 5, 2018: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/29295969/the-saudi-diabetic-kidney-disease-study-saudi-dkd-clinical-characteristics-and-biochemical-parameters
#13
Khalid Al-Rubeaan, Khalid Siddiqui, Mohammed Alghonaim, Amira M Youssef, Dhekra AlNaqeb
BACKGROUND: Saudi Arabia is facing an epidemic of type 2 diabetes that is complicated by a high rate of chronic complications such as kidney disease, which have a major impact on the healthcare system and economy. The Saudi diabetic kidney disease (SAUDI-DKD) study was launched to understand the implications of chronic diabetic kidney disease . OBJECTIVES: Examine the hematological, biochemical and metabolic parameters of the selected cohorts to look for biomarkers of diabetic nephropathy...
January 3, 2018: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/29262409/early-markers-of-cardiovascular-risk-in-autosomal-dominant-polycystic-kidney-disease
#14
Silvia Lai, Daniela Mastroluca, Silvia Matino, Valeria Panebianco, Antonio Vitarelli, Lidia Capotosto, Irene Turinese, Paolo Marinelli, Marco Rossetti, Alessandro Galani, Pia Baiocchi, Anna R D'Angelo, Paolo Palange
BACKGROUND/AIMS: Cardiovascular disease is the most frequent cause of morbidity and mortality in autosomal dominant polycystic kidney disease (ADPKD) patients, often before the onset of renal failure, and the pathogenetic mechanism is not yet well elucidated. The aim of the study was to identify early and noninvasive markers of cardiovascular risk in young ADPKD patients, in the early stages of disease. METHODS: A total of 26 patients with ADPKD and 24 control group, matched for age and sex, were enrolled, and we have assessed inflammatory indexes, mineral metabolism, metabolic state and markers of atherosclerosis and endothelial dysfunction (carotid intima media thickness (IMT), ankle brachial index (ABI), flow mediated dilation (FMD), renal resistive index (RRI), left ventricular mass index (LVMI)) and cardiopulmonary exercise testing (CPET), maximal O2 uptake (V'O2max), and O2 uptake at lactic acid threshold (V'O2@LT)...
December 15, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29251576/pretransplant-hba1c-and-glucose-metabolism-parameters-in-predicting-posttransplant-diabetes-mellitus-and-their-course-in-the-first-6-months-after-living-donor-renal-transplant
#15
Namrata Rao, Manish Rathi, Ashish Sharma, Raja Ramachandran, Vivek Kumar, Harbir Singh Kohli, Krishan Lal Gupta, Vinay Sakhuja
OBJECTIVES: Posttransplant diabetes mellitus is a common and serious metabolic complication after renal transplant. Patients with uremia are known to have abnormal glucose metabolism characterized by insulin resistance and defects in insulin secretion, which are ameliorated to some extent with renal replacement therapy and more so with renal transplant. However, the diabetogenicity of calcineurin inhibitors compounds this state of dysglycemia and promotes the development of diabetes in some patients...
December 18, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29248023/readmissions-with-multidrug-resistant-infection-in-patients-with-prior-multidrug-resistant-infection
#16
Jason P Burnham, Jennie H Kwon, Margaret A Olsen, Hilary M Babcock, Marin H Kollef
OBJECTIVE To determine incidence of and risk factors for readmissions with multidrug-resistant organism (MDRO) infections among patients with previous MDRO infection. DESIGN Retrospective cohort of patients admitted between January 1, 2006, and October 1, 2015. SETTING Barnes-Jewish Hospital, a 1,250-bed academic tertiary referral center in St Louis, Missouri. METHODS We identified patients with MDROs obtained from the bloodstream, bronchoalveolar lavage (BAL)/bronchial wash, or other sterile sites. Centers for Disease Control and prevention (CDC) and European CDC definitions of MDROs were utilized...
January 2018: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29225917/role-of-p-glycoprotein-on-cd69-cd4-cells-in-the-pathogenesis-of-proliferative-lupus-nephritis-and-non-responsiveness-to-immunosuppressive-therapy
#17
Shizuyo Tsujimura, Tomoko Adachi, Kazuyoshi Saito, Yoshiya Tanaka
Introduction: P-glycoprotein (P-gp) expression on activated lymphocytes in systemic lupus erythematosus (SLE) plays a role in active efflux of intracellular drugs, resulting in drug resistance. The role of P-gp-expressing lymphocytes in the pathogenesis of SLE remains unclear. The aim of this study was to determine the importance of P-gp+CD4+ cells in organ manifestations in refractory SLE. Methods: The proportion of P-gp+CD4+ cells was determined by flow cytometry in peripheral blood of patients with SLE (n=116) and healthy adults (n=10)...
2017: RMD Open
https://www.readbyqxmd.com/read/29224015/renal-resistive-index-as-a-novel-indicator-for-renal-complications-in-high-fat-diet-fed-mice
#18
Hairong Xu, Zejun Ma, Shan Lu, Rui Li, Liangkun Lyu, Lexi Ding, Qiulun Lu
BACKGROUND/AIMS: The renal resistive index (RI) is a novel candidate as a renal injury prognostic indicator, but it remains unclear how renal RI levels correspond to renal injury in diabetic nephropathy. METHODS: To examine this issue, we compared 8-week-old male C57BL/6 mice fed with high-fat diet (HFD) versus chow diet (CHD) for 16 weeks. At 8 and 12 weeks, the glomerular filtration rate (GFR), urinary albumin-to-creatinine ratio (UACR), and inflammatory factors (IL-1β, IL-6, TNFα, and MCP-1) were measured, along with the increase in renal RI...
December 7, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29201206/combined-treatment-of-diabetic-nephropathy-with-alprostadil-and-calcium-dobesilate
#19
Lili Qin, Wenjun Qin, Jianfei Wang, Lin Lin
This study investigated the effects of alprostadil combined with calcium dobesilate on the treatment of diabetic nephropathy. We recruited 80 patients with diabetic nephropathy, who were randomly divided into experimental (n=40) and control (n=40) groups. Patients received high-quality low-protein diabetic diet intervention and subcutaneous injection of insulin to adjust blood glucose, combined with antihypertensive, antiplatelet drugs, and other comprehensive treatments. The control group received alprostadil and the experimental group received alprostadil combined with calcium dobesilate...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29193755/relationship-between-kidney-findings-and-systemic-vascular-damage-in-elderly-hypertensive-patients-without-overt-cardiovascular-disease
#20
Giulio Geraci, Giuseppe Mulè, Gabriella Paladino, Marta Maria Zammuto, Antonella Castiglia, Emilia Scaduto, Federica Zotta, Calogero Geraci, Antonio Granata, Pasquale Mansueto, Santina Cottone
Few studies have investigated the influence of age on the relationships between systemic vascular damage, kidney dysfunction, and intrarenal hemodynamic changes in patients with hypertension without overt cardiovascular disease. The authors enrolled 126 elderly patients with hypertension (aged ≥65 years) and 350 nonelderly patients with hypertension (aged <65 years). Carotid intima-media thickness, renal resistive index, and aortic pulse wave velocity were performed in all patients. Elderly patients with hypertension had lower estimated glomerular filtration rates and higher albuminuria, renal resistive index, carotid intima-media thickness, and aortic pulse wave velocity compared with nonelderly patients with hypertension (P < ...
November 29, 2017: Journal of Clinical Hypertension
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