Advances in chronic kidney disease
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The diagnosis of acute kidney injury (AKI) is usually based on measurements of blood urea nitrogen (BUN) and serum creatinine. BUN and serum creatinine are not very sensitive or specific for the diagnosis of AKI because they are affected by many renal and nonrenal factors that are independent of kidney injury or kidney function. ⋯ These early biomarkers of AKI are being tested in different types of AKI and in larger clinical studies. Biomarkers of AKI may also predict long-term kidney outcomes and mortality.
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Acute kidney injury (AKI) is common in the intensive care unit and is associated with significant morbidity and mortality. Based on the RIFLE criteria, AKI occurs in up to 67% of patients in the intensive care unit (ICU), with approximately 4% of critically ill patients requiring renal replacement therapy (RRT). It is well known that this subset of AKI patients who require RRT have an in-hospital mortality rate exceeding 50%. ⋯ According to the United States Renal Data System, "acute tubular necrosis without recovery" as a cause of end-stage kidney disease increased from 1.2% in 1994 to 1998 to 1.7% in 1999 to 2003. The incidence will likely continue to rise with the aging population, increase in comorbidities, and expansion of intensive care unit capabilities. AKI is an underrecognized cause of chronic kidney disease (CKD) and patients who survive should be followed closely for new CKD and/or progression of underlying CKD.
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Adv Chronic Kidney Dis · Jan 2008
The Physician Quality Reporting Initiative: a practical approach to implementing quality reporting.
The Physician Quality Reporting Initiative (PQRI) is a voluntary program in which Medicare encourages eligible physicians in the United States to report on specific quality measures. This article is a case study of the implementation of PQRI reporting by Kidney Associates, a nephrology practice in Houston, TX. After reviewing and discussing 74 potential measures, the group narrowed the selection to 5 and chose 1 office measure and 2 dialysis measures. ⋯ The system was cost-effective to implement, required minimal education, and achieved 100% cooperation through feedback education and rapid correction of systems issues. Kidney Associates was able to show that PQRI reporting is easy to implement with minimal expense and staff labor. Sharing these methods with other practices should facilitate the implementation of efficient reporting systems.
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Adv Chronic Kidney Dis · Jan 2008
Review Comparative StudyA comparison of aerobic exercise and resistance training in patients with and without chronic kidney disease.
The morbidity and mortality associated with chronic kidney disease (CKD) are primarily caused by atherosclerosis and cardiovascular disease, which may be in part caused by inflammation and oxidative stress. Aerobic exercise and resistance training have been proposed as measures to combat obesity, inflammation, endothelial dysfunction, oxidative stress, insulin resistance, and progression of CKD. In non-CKD patients, aerobic exercise reduces inflammation, increases insulin sensitivity, decreases microalbuminuria, facilitates weight loss, decreases leptins, and protects against oxidative injury. ⋯ Combined aerobic exercise and resistance training during dialysis improves muscle strength, work output, cardiac fitness, and possibly dialysis adequacy. There is a need for more investigation on the role of exercise in CKD. If the benefits of aerobic exercise and strength training in non-CKD populations can be shown to apply to CKD patients as well, renal rehabilitation will begin to play an important role in the approach to the treatment, prevention, and slowed progression of CKD.