Read by QxMD icon Read

Renal Reserve

shared collection
7 papers 0 to 25 followers
By Isabel Acosta-Ochoa Nephrology senior staff. Valladolid. Spain
Abduzhappar Gaipov, Yalcin Solak, Nurlan Zhampeissov, Aliya Dzholdasbekova, Nadezhda Popova, Miklos Z Molnar, Saltanat Tuganbekova, Elmira Iskandirova
The renal functional reserve (RFR) is the ability of the kidneys to increase renal plasma flow and glomerular filtration rate (GFR) in response to protein intake. It is a measure of functional and anatomic integrity of nephrons. It is not known what relation between RFR and kidney Doppler parameters. We aimed to study the relation between the RFR and renal hemodynamic parameters in hypertensive patients with and without nephropathy who had normal kidney function. Twenty-four hypertensive subjects with nephropathy (HTN-n, n = 10) and hypertension without nephropathy (HTN, n = 14) were included in the study...
July 28, 2016: Renal Failure
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
Aashish Sharma, Jose J Zaragoza, Gianluca Villa, Leonardo C Ribeiro, Renhua Lu, Marco Sartori, Elena Faggiana, Massimo de Cal, Grazia M Virzi, Valentina Corradi, Alessandra Brocca, Faeq Husain-Syed, Alessandra Brendolan, Claudio Ronco
BACKGROUND: Renal function reserve (RFR) describes the capacity of the kidney to increase glomerular filtration rate (GFR) in response to physiological or pathological stimuli. The scope of our study was to evaluate the optimal level of stimulation using different doses of protein load (PL) for a standard renal stress test (RST). METHODS: 18 young healthy individuals were given sessions of PL with 1 and 2 g/kg body weight. Endogenous creatinine clearance was calculated...
July 2016: Clinical Nephrology
Matteo Tebaldi, Simone Biscaglia, Massimo Fineschi, Antonio Manari, Mila Menozzi, Gioel Gabrio Secco, Emilio Di Lorenzo, Fabrizio D'Ascenzo, Fabio Fabbian, Carlo Tumscitz, Roberto Ferrari, Gianluca Campo
OBJECTIVES: To establish if the presence of chronic kidney disease (CKD) influences fractional flow reserve (FFR) value in patients with intermediate coronary stenosis. BACKGROUND: FFR-guided coronary revascularization reduces cardiac adverse events in patients with coronary artery disease. CKD impairs microcirculation and increases cardiovascular risk. Whether CKD presence may limit FFR accuracy is unknown. METHODS: We used data from a multicenter prospective registry enrolling 1...
December 31, 2015: Catheterization and Cardiovascular Interventions
Mehmet Zekai Pekkafalı, Kemal Kara
AIMS: The aim of this study was to calculate the normal values of renal functional reserve in healthy individuals measuring the resistive index and pulsatility index using Doppler ultrasonography. MATERIAL AND METHODS: Forty healthy volunteer adults were included in the study. Their basal resistive index and pulsatility index values were measured and after oral protein load at 30th, 75th and 120th minutes, resistive index and pulsatility index measurements were repeated...
December 2015: Medical Ultrasonography
Aghogho Odudu, Diana Vassallo, Philip A Kalra
Atherosclerotic renal artery stenosis (ARAS) affects 7% of the over 65 s and will be increasingly common with an ageing population. ARAS obstructs normal renal perfusion with adverse renal and cardiovascular consequences. Drug therapy is directed at reducing atherosclerotic risk. Two recent major trials of revascularization for ARAS showed that clinical outcomes were not improved beyond those offered by optimal drug therapy in most patients. This reflects experimental data showing that restoration of blood flow alone may not attenuate a cascade of tissue injury...
December 2015: Expert Review of Cardiovascular Therapy
Don Kyoung Choi, Se Bin Jung, Bong Hee Park, Byong Chang Jeong, Seong Il Seo, Seong Soo Jeon, Hyun Moo Lee, Han-Yong Choi, Hwang Gyun Jeon
PURPOSE: We investigated structural hypertrophy and functional hyperfiltration as compensatory adaptations after radical nephrectomy in patients with renal cell carcinoma according to the preoperative chronic kidney disease stage. MATERIALS AND METHODS: We retrospectively identified 543 patients who underwent radical nephrectomy for renal cell carcinoma between 1997 and 2012. Patients were classified according to preoperative glomerular filtration rate as no chronic kidney disease--glomerular filtration rate 90 ml/minute/1...
October 2015: Journal of Urology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"