American journal of kidney diseases : the official journal of the National Kidney Foundation
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The aim of the study is to define the role of chronic kidney disease (CKD) as a risk factor for postoperative bleeding in patients undergoing coronary artery bypass graft (CABG) surgery. ⋯ CKD is associated with risk for postoperative bleeding in patients undergoing CABG surgery, not only at more advanced stages, but probably at relatively mild levels of renal impairment, as well.
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Hemoglobin (Hgb) levels fluctuate in patients with end-stage renal disease over time. This study quantified Hgb level variability and the likelihood of falling within the Hgb level goal range of 11 to 12 g/dL. Implications on the percentage of patients exceeding 3-month rolling average Hgb levels of 12, 12.5, and 13 g/dL were determined. ⋯ Variability caused by laboratory assays, biological factors, and therapeutic response determines patient Hgb level variability. Improving factors that can be manipulated (eg, standardizing EPO and iron algorithms) and adjustment of the target Hgb level range, specifically, by increasing the upper bound, likely will decrease the observed variability and further enhance the quality of anemia management.
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Review Meta Analysis Comparative Study
Acute renal failure in the intensive care unit: a systematic review of the impact of dialytic modality on mortality and renal recovery.
There is controversy about which dialytic modality should be used for the treatment of acute renal failure (ARF) in the intensive care unit. We performed a systematic review and meta-analysis to determine the relative risks (RRs) of mortality and renal recovery associated with intermittent hemodialysis (IHD) therapy compared with continuous renal replacement therapy (CRRT) in critically ill adults with ARF. ⋯ In comparison to IHD therapy, CRRT does not improve survival or renal recovery in unselected critically ill patients with ARF. Future studies should focus on well-defined subgroups of such patients using lessons learned from the trials in this meta-analysis. The high cost of chronic dialysis therapy and the relative instability of the RR for dialysis dependence suggest that future trials also should evaluate differences in renal recovery between dialytic modalities.
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A decrease in plasma sodium (P(Na)) concentration is common after surgery and attributed to the secretion of antidiuretic hormone in response to such nonosmotic stimuli as pain or nausea. In this setting, acute hyponatremia may lead to seizures, coma, and permanent neurological damage. Sporadic case reports have described severe neurological symptoms caused by hyponatremia occurring within hours after cardiac catheterization. We evaluated the prevalence, contributing clinical circumstances, and course of hyponatremia in patients undergoing cardiac catheterization. ⋯ An acute reduction in P(Na) level commonly occurs shortly after cardiac catheterization. The cause of hyponatremia appears to be related to the administration of hypotonic fluids, together with impaired urinary dilutional capacity. Although symptomatic hyponatremia is rare, the diagnosis should be entertained when neurological symptoms develop in this setting.
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Comparative Study
Variation in access to kidney transplantation across dialysis facilities: using process of care measures for quality improvement.
Kidney transplantation rates differ by patient and dialysis-facility characteristics, yet little is known about the sources of this variation or how access to transplantation can be improved. Examining specific steps in the transplantation process may guide quality improvement efforts that ultimately improve the equity and efficiency of transplantation. ⋯ There is substantial variation across dialysis facilities in access to kidney transplantation, even after adjustment for patient characteristics. Identifying steps with less than expected completion rates may help facilities target such efforts as treatment of medical conditions, patient education, and early referral for pretransplantation workup and waiting list placement.