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Renal Physicians Association Clinical Practice Guideline: Appropriate Patient Preparation For Renal Replacement Therapy:

Guideline Number 3

University of Virginia School of Medicine, Charlottesville, Virginia, for the Working Group and Duke Evidence-Based Practice Center, Center for Clinical Health Policy Research, Durham, North Carolina.

Correspondence to Renal Physicians Association (RPA), 4701 Randolph Road, Suite 102, Rockville, MD 20852. Phone: 301-468-3515; Fax: 301-468-3511; E-mail: rpa{at}renalmd.org

	Editor’s Note

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JASN is cooperating with the Renal Physicians Association and other renal journals in publishing this executive summary of a clinical practice guideline on appropriate patient preparation for renal replacement therapy. The full text of the guideline is available from the Renal Physicians Association (www.renalmd.org). The American Society of Nephrology participated in developing the content of this guideline, but this publication does not constitute endorsement of it’s content by JASN or the American Society of Nephrology.

	Introduction

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Chronic kidney disease (CKD) of various stages and end-stage renal disease (ESRD) afflict approximately 20 million individuals in the United States with an attendant staggering social and financial cost (1). An additional 20 million persons possess risk factors for developing CKD and possibly ESRD in the future. The National Kidney Foundation (NKF) Kidney Disease Outcomes Quality Initiative (K/DOQI) has published and is preparing evidence based Clinical Practice Guidelines (CPGs) on CKD (1) and possible interventions for management of various aspects of CKD which encompass the full spectrum of renal function. The numbers of at-risk persons who progress, the effect of intervention, and the cost-effectiveness of intervention for early stages of CKD remain to be clarified and are currently under study. In contrast, patients with advanced CKD (K/DOQI CKD Stages 4 and 5) have a high propensity for progression to ESRD in a relatively short period of time with well known multiple co-morbid conditions and poor outcomes. Interventions in this group of patients would likely be associated with improved clinical outcomes. Since most patients with advanced CKD reach the need for renal replacement therapy (RRT), the optimal approach to therapy should describe appropriate preparation of this population for RRT using the best available evidence for this specific subgroup of CKD patients.

	Executive Summary

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The present document is the Executive Summary of the Renal Physicians Association (RPA) CPG on Appropriate Patient Preparation for RRT. This is the RPA’s third CPG. The full document containing the full text CPGs and Clinical Performance Measures (CPMs) is available from the RPA (2).

To develop this document, the RPA convened a "Working Group" consisting of clinical experts and stakeholders. Participants were nominated by national organizations representing practitioners, patients, administrators, insurers, regulators, and federal granting agencies (Appendix). The Working Group was supported by a team of methodologists and nephrologists from the Duke Center for Clinical Health Policy Research and the Duke Institute of Renal Outcomes Research and Health Policy. The evidentiary foundation of the CPG and associated CPMs is a comprehensive review of the literature whose results were certified by the Agency for Healthcare Research and Quality ("Evidence Report: Appropriate Preparation for Renal Replacement Therapy") (3) as well as expert consensus on the most effective interventions.

The patient population at the center of the RPA’s CPG is the patient subset referred to as "advanced CKD," a shorthand term for the more specific designation of those patients whose clinical condition is categorized as advanced CKD stages 4 and 5 (1), but not on RRT. This corresponds to a glomerular filtration rate (GFR) of less than or equal to 30 ml/min per 1.73 m², when kidney function is at a high risk of progression. Before stage 4, the focus of diagnosis and treatment of CKD is on slowing progression and identifying and managing comorbidities. When the vast majority of CKD patients reach stage 4, they will likely progress and require RRT. As the patient progresses to stages 4 and 5, the focus shifts to managing complex metabolic disturbances and preparing the patient for RRT (dialysis or transplantation). Proactive preparation for RRT is recommended to facilitate the transition and reduce the burden of clinical risk factors known to be associated with worse outcomes in ESRD patients.

The recommendations contained in the CPG are intended to provide clinicians with practical guidance for the care of individuals with advanced CKD not yet requiring RRT. Since these patients have complex needs, the CPG is targeted to nephrologists and generalists with a special interest in advanced CKD patients. The objective of this document is to enhance, but not substitute for, the provider’s ability to care for patients based on the best available clinical and scientific evidence. The CPMs that have been developed on the basis of the CPGs are not intended for physician comparison, survey or population purposes; instead, they are meant to facilitate individual physician quality improvement efforts. The guideline is applicable to the population of adult patients (18 years of age and older) with advanced CKD not yet on RRT who are expected to progress and require RRT within 6 to 18 months. This CPG is not intended for use in children and adolescents with CKD.

The RPA has identified seven particularly important goals of care to be addressed by this CPG: (1) optimal management of anemia, (2) prevention of hyperparathyroidism, hyperphosphatemia, hypocalcemia, and metabolic bone disease, (3) control of BP, (4) maintenance of adequate nutrition, (5) managing qualitative and quantitative lipid disorders, (6) timing of the initiation of RRT and vascular access, and (7) counseling for choices of RRT, patient rehabilitation, and psychosocial and economic preparation.

A summary of the guidelines is presented on the following pages. Recommendations are graded: A, strongly recommend with good evidence; B, recommended with fair evidence; and C, recommended with little evidence but with consensus of expert opinion. The levels of evidence from the Evidence Report and Grades of Recommendation are presented in detail in the Evidence Report (3). For further detail, explanation, and elaboration, see the full text (2).

	Anemia Guidelines

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Monitoring Anemia Regularly
If a patient has GFR 30 ml/min per 1.73 m², then s/he should have his/her hemoglobin checked at least every three months. (Grade C)

Workup of Anemia
If a patient has GFR 30 ml/min per 1.73 m² and a hemoglobin < 12 g/dl if a woman, and < 13 g/dl if a man, then s/he should undergo a complete work-up for anemia including iron studies. (Grade B)

Treating Iron Deficiency
If a patient has GFR 30 ml/min per 1.73 m², and if iron deficiency is identified, then s/he should be treated. (Grade C)

Treatment with Erythropoietin or Erythropoietin Analogue
If a patient has GFR 30 ml/min per 1.73 m², and remains anemic despite appropriate evaluation and iron therapy, then s/he should be treated with erythropoietin or analogue. (Grade B)

Monitoring BP for Those Receiving Erythropoietin or Erythropoietin Analogue
If a patient has GFR 30 ml/min per 1.73 m², and is receiving erythropoietin or analogue, then s/he should have his/her BP checked with each dose. (Grade C)

	Bone Disease Guidelines

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Monitoring for Metabolic Acidosis
If a patient has GFR 30 ml/min per 1.73 m² then s/he should be monitored for acidosis (serum bicarbonate concentration) at least every three months. (Grade C)

Correcting Metabolic Acidosis
If a patient has a GFR 30 ml/min per 1.73 m² then his/her chronic metabolic acidosis should be corrected to a serum bicarbonate 22 mmol/L. (Grade C)

Monitoring Calcium, Phosphorus, and iPTH
If a patient has a GFR 30 ml/min per 1.73 m², then s/he should have his/her serum calcium and phosphorus measured at least every three months, and iPTH levels measured at least once, (Grade B) AND if calcium and/or phosphorus levels are abnormal, iPTH should be monitored at least every three months. (Grade C)

Treating HPTH and/or Hyperphosphatemia
If a patient has GFR 30 ml/min per 1.73 m², and if iPTH > 100 pg/ml (or > 1.5 times the upper limit of normal for each assay used), OR serum phosphorus > 4.5 mg/dl then s/he should be placed on a low phosphorus diet (< 800–1000 mg/d) for one month, and phosphorus levels should be re-checked, regardless of phosphorus or iPTH levels. (Note: a low phosphorus diet implies a low protein diet.) If serum phosphorus is still > 4.5 mg/dl, then phosphate binder should be started (Grade B) AND iPTH levels should be monitored every three months following the initiation of therapy, whether phosphorus is controlled or not. (Grade B)

Managing Decreased Vitamin D Levels (Vitamin D Insufficiency)
If a patient has GFR 30 ml/min per 1.73 m² and if iPTH > 100 pg/ml (or 1.5 times the upper limit of normal for each assay used), then measure 25(OH) vitamin D; AND if 25(OH) vitamin D is decreased (serum levels < 30 ng/ml) then s/he should receive vitamin D₂ 50,000 units orally every month for 6 months. (Grade C)

Managing Hypocalcemia
If a patient has GFR 30 ml/min per 1.73 m² and corrected serum calcium is < 8.5 mg/dl (using a normal reference range of 8.5 to 10.5 mg/dl) after phosphorus issues are addressed, then s/he should receive elemental calcium 1 g/d between meals or at bedtime. (Grade C)

Treating Refractory HPTH
If a patient has GFR 30 ml/min per 1.73 m² and iPTH remains > 100 pg/ml (or > 1.5 times the upper limit of normal for each assay used) after 3 months of previously recommended interventions, then s/he should receive oral vitamin D therapy with 0.25 mcg/d of calcitriol (Grade C) or alfacalcidol 0.25 mcg/d, to a maximum of 0.5 mcg/d.

	Hypertension Guidelines

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Monitoring BP
If a patient has GFR 30 ml/min per 1.73 m², then his/her BP should be checked with every clinic visit (Grade A), which should be at least every three months. (Grade C)

Responding to Elevated BP
If a patient has GFR 30 ml/min per 1.73 m², and if BP is determined to be elevated (systolic > 130 mmHg OR diastolic > 80 mmHg), then s/he should receive encouragement and instruction to initiate therapeutic lifestyle changes (Grade C) and s/he should receive intensified antihypertensive therapy. (Grade B)

Treating with ACE Inhibitors and ARBs
If a patient has GFR 30 ml/min per 1.73 m² and hypertension, then s/he should receive an ACE inhibitor or an ARB as a first-line agent. (Grade C)

	Nutrition Guidelines

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Monitoring Nutritional Status Regularly
If a patient has GFR 30 ml/min per 1.73 m², then his/her nutritional status should be monitored by measuring body weight and serum albumin every three months. (Grade B)

Managing Malnutrition
If a patient has GFR 30 ml/min per 1.73 m², and if body weight decreases unintentionally by more than 5% or serum albumin decreases by more than 0.3 g/dl or is < 4.0 g/dl (for Bromo-Cresol-Green assay, or 3.7 for Bromo-Cresol-Purple assay), then s/he should be evaluated for causes. If other causes are ruled out and cause is therefore determined to be CKD, then s/he should receive diet assessment and counseling by qualified and experienced personnel. (Grade C)

Initiating RRT Based on Nutritional Status
If a patient has GFR < 20 ml/min per 1.73 m², with evidence of malnutrition that does not respond to nutritional intervention in the absence of other causes of malnutrition, then s/he should begin RRT. (Grade C)

	Dyslipidemia Guidelines

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Monitoring for Dyslipidemias
If a patient has GFR 30 ml/min per 1.73 m², then she/he should be monitored for dyslipidemias; measurements should include triglycerides, LDL, HDL, and total cholesterol. (Grade B)

Evaluation for Secondary Causes
If a patient has GFR 30 ml/min per 1.73 m², and has dyslipidemia, then s/he should be evaluated for secondary causes including comorbid conditions and certain medications. (Grade C)

Treatment of Dyslipidemias
If a patient has GFR 30 ml/min per 1.73 m², LDL should be targeted to < 100 mg/dl; non-HDL cholesterol should be targeted to < 130 mg/dl; and fasting triglycerides 500 mg/dl should be treated. (Grade C)

	Timing Guidelines

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Early Counseling about Modality of RRT
If a patient has GFR 30 ml/min per 1.73 m², modality of RRT should be discussed with him/her. (Grade B).

GFR as a Guide to RRT Timing
No recommendation can be made for initiating RRT based solely on a specific level of GFR. (Grade B).

Early Referral for Transplant Evaluation
If a patient has GFR 30 ml/min per 1.73 m² and is willing to have a renal transplant, then s/he should receive a transplant evaluation (Grade B), unless s/he has an unacceptable level of surgical risk or does not satisfy the United Network for Organ Sharing (UNOS) Ethics Committee criteria for transplant candidacy.

Preservation of Veins for Vascular Access
If a patient has GFR 30 ml/min per 1.73 m² and it has been determined that s/he will receive hemodialysis, veins suitable for placement of vascular access should be preserved. (Grade C).

Timing for Vascular Access Placement
If a patient has GFR 30 ml/min per 1.73 m², and it has been determined that s/he will receive hemodialysis, then s/he should be referred for surgery to attempt construction of a primary AV fistula. (Grade C).

	Counseling and Rehabilitation Guidelines

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Exercise
If a patient has GFR 30 ml/min per 1.73 m² and does not engage in regular physical activity, then s/he should receive counseling and encouragement to increase physical activity. If a patient is unable to walk or unable to increase fully mobile physical activity, then s/he should be referred to physical therapy or cardiac rehabilitation. (Grade B)

Evaluation, Education, and Encouragement
If a patient has GFR 30 ml/min per 1.73 m², then s/he should receive structured education regarding preparation for RRT. (Grade C)

Employment Counseling
If a patient has GFR 30 ml/min per 1.73 m² then s/he should be encouraged to maintain employment and be referred to vocational counseling per his/her preference. (Grade C)

Working Group
Renal Physicians Association
W. Kline Bolton, MD

Working Group Chair

University of Virginia School of Medicine

Charlottesville, VA

William F. Owen, Jr., MD

President, Renal Physicians Association

Duke University School of Medicine

Durham, NC

Baxter International Healthcare

McGaw Park, IL

Dale Singer, MHA

Executive Director, Renal Physicians Association

Content Experts
Jack Coburn, MD

UCLA School of Medicine

West Los Angeles V.A. Healthcare Center

West Los Angeles, CA

William Haley, MD

Mayo Clinic

Jacksonville, FL

Annamaria Kausz, MD

New England Medical Center

Boston, MA

Adeera Levin, MD

St. Paul’s Hospital

Vancouver, BC

William Mitch, MD

University of Texas Medical Branch

Galveston, TX

Patrician Painter, PhD

University of California, San Francisco

San Francisco, CA

Michael Rocco, MD, MSCE

Wake Forest University School of Medicine

Winston-Salem, NC

Association Representatives
Carolyn Atkins, RN, BS, CCTC

National Kidney Foundation

Medical City Dallas Hospital

Dallas, TX

Shelby Clark, RN

National Renal Administrators Association

FMC North Roanoke Dialysis

Roanoke, VA

Paul Eggers, PhD

National Institutes of Diabetes and Digestive and Kidney Diseases (NIDDK)

Bethesda, MD

Lori Fedje, RD, LD

NKF Council on Renal Nutrition

Pacific Northwest Renal Services

Portland, OR

Richard Goldman, MD

Renal Physicians Association

Renal Medicine Associates, Emeritus

Albuquerque,NM

Joel Greer, PhD

Centers for Medicare and Medicaid Services

Baltimore, MD

Richard Lafayette, MD

American Society of Nephrology

Stanford University School of Medicine

Stanford, CA

Eugene Z. Oddone, MD

American College of Physicians –

American Society of Internal Medicine

Durham VA Medical Center

Durham, NC

Victoria Norwood, MD

American Society of Pediatric Nephrology

University of Virginia

Charlottesville, VA

Paul M. Palevsky, MD

Forum of ESRD Networks

University of Pittsburgh School of Medicine

VA Pittsburgh Health Care System

Pittsburgh, PA

Sandy Peckens, MSW

NKF Council of Nephrology Social Workers

Merrimack Valley Nephrology

Methuen, MA

Venkataeswara Rao, M.D.

American Society of Transplantation

Hennepin County Medical Center

Minneapolis, MN

Charlotte Thomas Hawkins, Ph.D., RN, CNN

American Nephrology Nurses Association

Rutgers, The State University of New Jersey

Burlington, NJ

Joseph White

American Association of Kidney Patients

Methodologists
David B. Matchar, MD, FACP

Director, Duke Center for Clinical Health Policy Research and

Co-Director, Duke Evidence-Based Practice Center

Durham, NC

Douglas C. McCrory, MD, MHS

Co-Director Duke Evidence-Based Practice Center

Durham, NC

Joseph A. Coladonato, MD, MHS

Duke Institute of Renal Outcomes Research & Health Policy

Duke University Medical Center

Durham, NC

Preston S. Klassen, MD, MHS

Duke Institute of Renal Outcomes Research & Health Policy

Duke University Medical Center

Durham, NC

Meenal B. Patwardhan, MD, MHSA

Duke Center for Clinical Health Policy Research and Duke Evidence-based Practice Center

Durham, NC

Donal N. Reddan, MD, MHS

Duke Institute of Renal Outcomes Research & Health Policy

Duke University Medical Center

Durham, NC

Olivier T. Rutschmann, MD, MPH

Duke Center for Clinical Health Policy Research

Durham, NC

William S. Yancy, Jr., MD, MHS

Duke University Medical Center

Durham, NC

Medical Editor
Rebecca N. Gray, DPhil

Duke Evidence-based Practice Center

Durham, NC

Project Manager and Editor
Emily G. Shurr, MA

Duke Evidence-based Practice Center

Durham, NC

	Acknowledgments

 
The RPA CPG for Appropriate Preparation for RRT was supported by an unrestricted, educational grant from Ortho Biotech, Inc.

	References

Top Editor’s Note Introduction Executive Summary Anemia Guidelines Bone Disease Guidelines Hypertension Guidelines Nutrition Guidelines Dyslipidemia Guidelines Timing Guidelines Counseling and Rehabilitation... References

 

1. National Kidney Foundation, K/DOQI Clinical Practice Guidelines for Chronic Kidney Disease: Evaluation, Classification and Stratification. Am J Kidney Dis 39: S1–S266, 2002[CrossRef][Medline]
2. Renal Physicians Association’s Appropriate Preparation of the Patient for Renal Replacement Therapy. Clinical Practice Guideline Number 3. Rockville MD, Renal Physician’s Association, 2002
3. McCrory D, Klassen P, Rutschmann O, Coladonato J, Yancy W, Reddan D, Gray R, Owen W, Shurr E, Matchar D: Evidence Report: Appropriate Patient Preparation for Renal Replacement Therapy. Rockville MD, Renal Physicians Association, October 2002

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