Journal of nephrology
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Journal of nephrology · Jun 2017
ReviewThe exciting "bench to bedside" journey of cell therapies for acute kidney injury and renal transplantation.
Acute kidney injury (AKI) is characterized by an increasing incidence and poor outcomes in both developed and undeveloped countries. AKI is also acquiring importance in the setting of kidney transplantation (KT): besides all the classical forms of AKI that KT patients may undergo, several transplant-specific injuries can also lead to the loss of graft function. ⋯ In this composite scenario, cell therapies represent an evolving frontier for AKI treatment in native and transplanted kidneys: ex-vivo manipulated stem or immune cells are able to counteract renal dysfunction by a wide range of biological mechanisms. In this review, we will discuss the potential applications of cell therapies in AKI and KT by analyzing the available clinical data and the most promising experimental prospects from a "bench to bedside" perspective.
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Journal of nephrology · Apr 2017
Comparative Study Observational StudyComparative effectiveness of angiotensin receptor blockers vs. angiotensin-converting enzyme inhibitors on cardiovascular outcomes in patients initiating peritoneal dialysis.
There is evidence that angiotensin-converting enzyme inhibitors (ACEI) and angiotensin-II receptor blockers (ARB) may reduce cardiovascular (CV) risk in patients undergoing peritoneal dialysis (PD), but no studies have compared the effectiveness between these drug classes. In this observational cohort study, we compared the association of ARB vs. ACEI use on CV outcomes in patients initiating PD. ⋯ We identified no significant difference in the risks of CV events or death between users of ARBs vs. ACEIs in patients initiating PD, thus supporting their mostly interchangeable use in this population.
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Journal of nephrology · Apr 2017
Renal resistive index by transesophageal and transparietal echo-doppler imaging for the prediction of acute kidney injury in patients undergoing major heart surgery.
Acute kidney injury (AKI) following major heart surgery (MHS) is associated with early decrease in renal blood flow and worsened prognosis. Doppler-derived renal resistive index (RRI), which reflects renal vascular resistance, may predict the development of AKI in patients undergoing MHS. ⋯ In patients undergoing MHS, increased echo-Doppler ultrasound-derived RRI at end-surgery is significantly associated with the risk of AKI, but has limited practical utility for identifying the patients who will develop AKI.
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Journal of nephrology · Feb 2017
Review Meta AnalysisEffect of remote ischemic preconditioning on postoperative acute kidney injury among patients undergoing cardiac and vascular interventions: a meta-analysis.
It is currently controversial whether remote ischemic preconditioning (RIPC) reduces the incidence of acute kidney injury (AKI) in patients undergoing cardiovascular interventions. The main objective of this meta-analysis was to investigate whether RIPC provides renal protection for patients undergoing cardiac or vascular surgery. We searched the PubMed database (1966-Oct 2015), Embase database (1966-Oct 2015), Google Scholar, Cochrane Library, ClinicalTrials Database and Open Grey. ⋯ There were no differences in the changes in AKI biomarkers, use of renal replacement therapy or in-hospital mortality between the two groups. Remote ischemic preconditioning may decrease the occurrence of AKI in cardiovascular surgery patients. Since studies included have a significant heterogeneity, meta-analyses using a stricter inclusion criteria are needed to clarify the renoprotection effect of RIPC.
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Journal of nephrology · Dec 2016
Observational StudyDialysis requirement, long-term major adverse cardiovascular events (MACE) and all-cause mortality in hospital acquired acute kidney injury (AKI): a propensity-matched cohort study.
Dialysis-requiring acute kidney injury (D-AKI) is common in hospitalized patients. Many patients survive the immediate post AKI period, thus at risk of suffering long-term sequelae of AKI. Prior studies examining long term outcomes lack non-dialyzed AKI control groups. Without non-dialyzed AKI control group, these studies cannot provide relevant information on long-term risks or benefits associated with dialysis intervention following AKI. ⋯ Management of AKI with temporary dialysis in hospitalized patients with baseline eGFR of ≥60 ml/min per 1.73 m2 was NOT associated with an increased risk for subsequent admission for MACE or all-cause mortality. Clinicians may not need to worry that the dialysis procedure itself may confer additional risk for long-term MACE and all-cause mortality in AKI patients with normal pre-hospitalization GFR.