GUIDELINESBlood glucose control should be optimized aiming for a general HbA1c target 27%. (Grade A*). In people with type 2 diabetes and microalbuminuria or macroalbuminuria, angiotensin receptor blocker (ARB) or angiotensin-converting enzyme inhibitor ACEi antihypertensives should be used to protect against progression of kidney disease. (Grade A*). The blood pressure (BP) of people with type 2 diabetes should be maintained within the target range. ARB or ACEi should be considered as antihypertensive agents of first choice. Multi-drug therapy should be implemented as required to achieve target blood pressure. (Grade A*) People with type 2 diabetes should be informed that smoking increases the risk of chronic kidney disease (CKD) (Grade B*). Table A1: Definition of NHMRC grades of recommendation. Also refer to NHMRC 'National Evidence Based Guidelines for Diagnosis, Prevention and Management of CKD in Type 2 Diabetes' (see http://www.cari.org.au) for Levels of Evidence and Evidence Grading which were undertaken in accordance with the NHMRC Hierarchy of Evidence procedure.
*Refer to
SUGGESTIONS FOR CLINICAL CARE• The HbA1c target may need to be individualized taking in to account history of hypoglycaemia and co-morbidities. (refer to NHMRC Evidence Based Guideline for Blood Glucose Control in Type 2 Diabetes at http://www.nhmrc.gov.au).• Systolic blood pressure (SBP) appears to be the best indicator of the risk of CKD in type 2 diabetes. However, an optimum and safest lower limit of SBP has not been clearly defined.• In people with type 2 diabetes antihypertensive therapy with ARB or ACEi decreases the rate of progression of albuminuria, promotes regression to normoalbuminuria, and may reduce the risk of decline in renal function.• Due to potential renoprotective effects, the use of ACEi or ARB should be considered for the small subgroup of people with normal BP who have type 2 diabetes and microalbuminuria.• The extent to which interventions with lipid lowering therapy reduces the development of CKD in people with type 2 diabetes is unclear. As there is limited evidence relating to effects of lipid treatment on the progression of CKD in people with type 2 diabetes, blood lipid profiles should be managed in accordance with guidelines for prevention and management of cardiovascular disease (CVD).• Lifestyle modification (diet and physical activity) is an integral component of diabetes care (refer to the NHMRC Evidence Based Guidelines for Blood Glucose Control in Type 2 Diabetes), however, there are insufficient studies of suitable quality to enable dietary recommendations to be made with respect to prevention and/or management of CKD in people with type 2 diabetes.
BACKGROUND
Aim of the guidelineThis guideline topic has been taken from the NHMRC 'National Evidence Based Guidelines for Diagnosis, Prevention and Management of CKD in Type 2 Diabetes' which can be found in full at the CARI website (http:// www.cari.org.au). The NHMRC guideline covers issues related to the assessment and prevention of CKD in individu...