Diabetes Mellitus Hart, Nieren & Hypertensie Microalbuminurie bij Diabetes Definitions of Microalbuminuria and Macroalbuminuria Parameter Normal Microalbuminuria Macroalbuminuria Urine AER (g/min) < 20 20 - 200 >200 Urine AER (mg/24h) < 30 30 - 300 >300 Urine albumin/ Cr# ratio (mg/mmol) <3 3 - 30 >30 AER=Albumin excretion rate CR# =creatinine Behandeling van Diabetes moet dus in hoge mate zijn gericht op preventie van cardiovasculaire ziekte ... Treatment Targets for Diabetic Renal Disease With Hypertension Meta Analysis: Lower Systolic BP Results in Slower Rates of Decline in GFR in Diabetics and Non-Diabetics SBP (mmHg) 130 134 138 142 146 150 154 170 180 GFR (mL/min/year) 0 -2 r = 0.69; P < .05 -4 -6 -8 Untreated HTN -10 -12 -14 Parving HH, et al. Br Med J. 1989. Moschio G, et al. N Engl J Med. 1996. Viberti GC, et al. JAMA. 1993. Bakris GL, et al. Kidney Int. 1996. Klahr S, et al. N Eng J Med. 1994. Bakris GL. Hypertension. 1997. Hebert L, et al. Kidney Int. 1994. The GISEN Group. Lancet. 1997. Lebovitz H, et al. Kidney Int. 1994. Bakris GL, et al. Am J Kidney Dis. 2000;36(3):646-661. Behandeling Microalbuminurie bij DM ~ 2e-doel RR: 120-130/<80 mmHg • ACEi met diureticum (eg. Captopril/HCT of Lisinopril/HCT) • 2e middel op indicatie (eg. BB bij angina pectoris) • 2-3e middel: Spironolacton, (z.n. + kaliumbeperkt dieet of HCT/chloortalidon of sorbisterit) • 3-4e middel: Allopurinol Consultatie van of verwijzing naar de tweede lijn is aangewezen bij • twijfel over de diagnose, • problemen bij de glycemische instelling, • problemen bij behandeling van risicofactoren, • het onvoldoende onder controle krijgen van de gevolgen van complicaties • zwangerschap(swens). LTA DM-II, 2012 From Dr J Vora DM-II • Losartan verhoogt de incidentie van microalbuminurie • RR-verlaging < 120 mmHg systolisch induceert meer sterfte • Vitamine-D vermindert microalbuminurie • Intensieve behandeling hyperglycemie in de initiële fase van DM-I/II reduceert nefropathie en CVR • Mortaliteit stijgt bij HbA1c > 85 en < 42 mmol/mol • Intermitterende episodes van acute nierinsufficientie verslechteren de lange termijn prognose Allopurinol initiation and all-cause mortality in the general population Results Of 5927 allopurinol initiators and 5927 matched comparators, 654 and 718, respectively, died during the follow-up (mean=2.9 years). The baseline characteristics were well balanced in the two groups, including the prevalence of gout in each group (84%). Allopurinol initiation was associated with a lower risk of all-cause mortality (matched HR 0.89 (95% CI 0.80 to 0.99)). When we limited the analysis to those with gout, the corresponding HR was 0.81 (95% CI 0.70 to 0.92). http://dx.doi.org/10.1136 annrheumdis-2014-205269 Urinezuur is een cardiovasculaire risicofactor Allopurinol bij DM • Vermindert insuline resistentie • Verlaagt CRP • Vertraagt Atherosclerose • Vermindert Microalbuminurie • Vermindert Chronische nierschade • Vermindert Linkerventrikelhypertrofie • Vermindert Oxidatieve stress Allopurinol risico’s • Acute allergische reactie 4,7 promille JAMA Intern Med. 2015;175(9):1550. • Gerelateerde mortaliteit 0,4 promille • Heupfractuur Odds Ratio (OR) 1,07 • Lager risico op Hartinfarct: OR 0,73 OR 0,52, dosis en duur afhankelijk • Atriumfibrilleren: OR 0,73 Archives of Osteoporosis annrheumdis-2012-202972 heartjnl-2014-306670 annrheumdis-2012 2015, 10:36 Metformine Metformine risico’s • Bij eGFR<15: Mortaliteit OR 1,35 • Lactaat acidose 1,6 vs 1,3/100jaar (n.s.) • Bij eGFR > 30 ml/min/1,73m2: nuttig en veilig • Bij eGFR 15- 30 ml/min/1,73m2: waarschijnlijk nuttig en veilig. Effectiveness and safety of metformin in 51675 patients with type 2 diabetes and different levels of renal function: a cohort study from the Swedish National Diabetes Register. BMJ Open. 2012 Jul 13;2(4). Verschillen tussen ACE-remmers CV Mortality in General Population (GP) & Dialysis Patients, By Race Annual % Mortality (Log Scale) 100.000 10.000 1.000 0.100 GP Black GP White Dialysis Black Dialysis White 0.010 0.001 25-34 35-44 45-54 55-64 Age (years) Sarnak MJ, Levey AS. Semin Dial. 1999;12:69-76. 65-74 75-84 85+ Tot slot, praktisch: . . . Mijn behandelingsstrategie bij: diabetes + chronische nierziekte (≥ microalbuminurie) ± hypertensie • ≥3x1uur bewegen/week; roken -; gewicht ; voeding. • Bloeddruk ≤125/75 mmHg • Start met een ACE-remmer, liefst een combinatiepil met een lage dosis diureticum ! • +/-Zoutarm dieet (<6 g NaCl/d) • Doseren totdat proteinuria ≤ 0,5 g/dag is • Behandel dislipidemie (LDL <2,5 mmol/L, Trigl ≤ 2,0) • HbA1C < 60 mm/m P C Chang, RZZ UKPDS: Relationship Between BP Control And Diabetes-Related Deaths Hazard ratio 5 1 p<0.0001 17% decrease per 10 mmHg decrement in BP 0.5 110 120 130 140 150 Mean systolic blood pressure (mmHg) Adler AI, et al. BMJ. 2000;321:412-419. Reprinted by permission, BMJ Publishing Group. 160 170 Risk of Ischemic Heart Disease Related to SBP and Microalbuminuria N=2,085; 10 year follow-up Relative Risk 6 5 Normoalbuminuria Microalbuminuria 4 3 2 1 0 SBP <140 Borch-Johnsen K, et al. Arterioscler Thromb Vasc Biol. 1999;19(8):1992-1997. SBP 140-160 SBP>160 Relative Importance of CV Risk Factors in Diabetes 12 10.0 10 8 6.5 6 3.2 4 2.3 2 0 Microalbuminuria Smoking Diastolic BP Cholesterol Eastman RC, Keen H. Lancet 1997;350 Suppl 1:29-32. Diabetes and Chronic Renal Disease as CV Risk Behandeling van Diabetes moet dus in hoge mate zijn gericht op preventie van cardiovasculaire ziekte ... Cardiovasculaire Preventie in Diabetes Vascular Protection: Glycaemic Control Glycaemic Control for Vascular Protection: after all Patients are on ACE Inhibitor, ASA and Lipid Control (statin) Hazard ratio 5 Fatal and Non - Fatal Myocardial Infarction 14% decrease per 1% decrement in HbA1c p<0.0001 CDA 2003 Glycaemic Targets A1c 7% for most patients 1 0.5 0 5 A1c 6% when safely achievable 6 7 8 9 10 11 Updated mean HbA1c UKPDS 35. BMJ 2000; 321: 405-12. Vascular Protection: Diabetes and Control of Hypertension Treatment Targets for Diabetic Renal Disease With Hypertension CV Mortality Risk Doubles with Each 20/10 mm Hg BP Increment* 8 7 6 CV mortality risk 5 4 3 2 1 0 115/75 135/85 155/95 SBP/DBP (mm Hg) *Individuals aged 40-69 years, starting at BP 115/75 mm Hg. CV, cardiovascular; SBP, systolic blood pressure; DBP, diastolic blood pressure Lewington S, et al. Lancet. 2002; 60:1903-1913. JNC VII. JAMA. 2003. 175/105 Goal BP Recommendations for Patients with DM or Renal Disease Systolic Organization Year BP American Diabetes Association 2001 <130 Diastolic BP <80 2000 <130 <80 Canadian Hypertension Society 1999 <130 <80 1999 <140 <80 1999 <130 <85 1997 <130 <85 125 75 National Kidney Foundation British Hypertension Society WHO & International Society of Hypertension Joint National Committee (JNC VI) Renal Disease & Proteinuria >1g (JNC VI) From Dr J Vora Management of Chronic Renal Disease: Initial Diet Therapy • For patients with modest renal insufficiency, reduce intake of high biological quality protein* intake of 1 gm/kg body weight/day • For patients with marked renal insufficiency, reduce dietary protein intake to 0.8 gm/kg body weight/day • Restrict dietary sodium intake to 4-6 gm/day • Avoid foods rich in potassium *high biological quality proteins are those rich in essential amino acids Impact of Blood Pressure Reduction on Mortality in Diabetes Trial Conventional Intensive Risk care care reduction P-value UKPDS 154/87 144/82 32% 0.019 HOT 144/85 140/81 66% 0.016 Mortality endpoints are: UK Prospective Diabetes Study (UKPDS) – “diabetes related deaths” Hypertension Optimal Treatment (HOT) Study – “cardiovascular deaths” in diabetics Turner RC, et al. BMJ. 1998;317:703-713. Hansson L, et al. Lancet. 1998;351:1755–1762. Diabetes and Hypertension 3.0% No DM DM 2.0% Annual Mortality 1.0% 0.0% <120 120139 140159 160179 180199 >200 Systolic BP Stamler J, et al, Diabetes Care, 1993;16(2):434-444. Treatment Targets for Diabetic Renal Disease With Hypertension