Management of Hospital g p Hyperglycemia
Transcript of Management of Hospital g p Hyperglycemia
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Management of Hospital g pHyperglycemia
Asad Saeed, M.D.Director, Inpatient Diabetes
Assistant Professor of MedicineDivision of EndocrinologyDepartment of Medicine
i i f iUniversity of Minnesota
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O tlineOutline
Clinical Case Briefly review data linking hyperglycemia and it’s
management to clinical outcomes Management options Management options Summary QuestionsQ
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Clinical CaseClinical Case
A 48 year old obese male is admitted with a severe pneumonia requiring IV antibiotics. His admission labs are remarkable for a random glucose of 268 mg/dl. He gives no previous history of diabetes.
-----------------------------------------------------------------------------------------------Hyperglycemia: FBG>126 mg/dl or RBG >200 mg/dl
Does this patient have diabetes mellitus or stress hyperglycemia ?
Is this hyperglycemia harmful or it can be ignored?
How should he be managed?How should he be managed?
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Hospital Hyperglycemiap yp g yTypes
Known DiabetesDiabetes diagnosed and treated before admission
Newly Diagnosed DiabetesNewly Diagnosed DiabetesFasting glucose >126 mg/dl, or random glucose >200 mg/dl during hospital stay. HbA1c >6.5
Stress HyperglycemiaFasting glucose >126 mg/dl or random glucose >200 mg/dl during hospital stay that reverts to normal in a few days. HbA1c <6.5
Steroid Induced
Nutritional: TPN/TFs associated
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Stress HyperglycemiaStress Hyperglycemia(Transient hyperglycemia Associated with acute illness)
Fasting blood glucose >126 mg/dl, Random glucose >200 mg/dl Term usually applied to patients with no previous history of diabetes Patients with previously well controlled diabetes with deterioration of glycemic
control on admission Related to stress of an acute illness Secondary to the action of
Stress hormones; GlucogonCatecholaminesCortisolGrowth Hormone
Cytokines; IL 1TNF-A
Tends to resolve with resolution of acute stress In the past believed to be a benign adaptive response Plenty of data supporting poor outcomes
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HYPERGLYCEMIA: AN INDEPENDENT MARKER OF HYPERGLYCEMIA: AN INDEPENDENT MARKER OF ININ--HOSPITAL MORTALITY IN PATIENTS WITH HOSPITAL MORTALITY IN PATIENTS WITH
UNDIAGNOSED DIABETESUNDIAGNOSED DIABETES
Mortalityn = 2,020n = 2,020
* Hyperglycemia: Fasting BG * Hyperglycemia: Fasting BG 126 mg/dl126 mg/dlor Random BG or Random BG 200 mg/dl X 2200 mg/dl X 2
16%
3.0%
Mortality
1.7%3.0%
Normoglycemia Known Diabetes New Hyperglycemia
Umpierrez G et al, J Clin Endocrinol Metabol 87:978, 2002Umpierrez G et al, J Clin Endocrinol Metabol 87:978, 2002
Normoglycemia Known Diabetes New Hyperglycemia
Glu=108 mg/dl Glu= 230 mg/dl Glu=189 mg/dl
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Association Between Hyperglycemia and Increased Association Between Hyperglycemia and Increased Mortality in a Heterogeneous Population of Mortality in a Heterogeneous Population of y g py g p
Critically Ill PatientsCritically Ill PatientsKrinsley JS. Mayo Clin Proc. 2003;78:1471Krinsley JS. Mayo Clin Proc. 2003;78:1471--14781478
N= 1826
Krinsley JS. Mayo Clin Proc.2003;78:1471-1478
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Effect of Admission Hyperglycemia* on Mortality in Patients with Acute MyocardialMortality in Patients with Acute Myocardial
InfarctionAinlaAinla MIT et al. MIT et al. DiabetDiabet Med. 2005;22:1321Med. 2005;22:1321--13251325
180 Day Mortality %%N= 779
47.7
29.8
14.1
26.729.8
Euglycemic Patients without
Diabetes
Hyperglycemic Patients without
Diabetes
Euglycemic Patients with
Diabetes
Hyperglycemic Patients with
Diabetes
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Impaired Glucose Metabolism Predicts Impaired Glucose Metabolism Predicts Mortality After a Myocardial InfarctionMortality After a Myocardial Infarction
Bolk J et al. Int J Cardiol. 2001;79:207Bolk J et al. Int J Cardiol. 2001;79:207--214214
n-=336
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Mortality of DM Patients Undergoing CABGy g g
Furnary et al J Thorac Cardiovasc Surg 2003;123:1007-21
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The Relation Between Hyperglycemia and The Relation Between Hyperglycemia and Outcomes in 2471 Patients Admitted to the Outcomes in 2471 Patients Admitted to the
Hospital With Community Acquired Hospital With Community Acquired PneumoniaPneumonia
McAlister FA et al. Diabetes Care. 2005;28:810McAlister FA et al. Diabetes Care. 2005;28:810--815.815.
Non-ICU Patients With CAPP=0.07
25%
30%
29%
0.07
15%
20% 22%
13%Glucose <200 mg/dl Glucose >200 mg/dl
P=0.03
0%
5%
10%9%
Complications: ACS, CHF and Nosocomial infections other than lungsIn-Hospital Mortality Complications other than lungs
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Basic ScienceBasic Science
Hyperglycemia leads to Glycosuria, volume depletion and electrolytes fluxes Increased platelet aggregation and thrombosis Increase in cytokines and inflammation Diminished neutrophil adherence, chemotaxis,
phagocytosis, and extravasation i l l i f i l b li Non-enzymatic glycosylation of immunoglobulins
Defective collagen synthesis and poor wound healinghealing
Clement S et al. Diabetes Care. 2004;27:553-591
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IV Insulin Therapy Significantly Decreases IV Insulin Therapy Significantly Decreases Postoperative MortalityPostoperative MortalityPostoperative MortalityPostoperative Mortality
(Endocr Pract. 2004; 10[Suppl 2]:21-33)
Cardiac Surgical Patients Mortality
5 3%5 0%
6.0%
P<0.0001
Mean Glucose 213
5.3%
3.0%
4.0%
5.0%
Mortality
Mean Glucose 177
2.5%
1.0%
2.0%
0.0%SC IV Insulin
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CIII4.0%
CIII
2.0%
3.0%
DSW
I DM Pts.
N DM
1.0%
D Non-DM
0.0%87 88 89 90 91 92 93 94 95 96 97
Year
Furnary, et al, Ann Thorac surg 1999;67:352-62
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Cardiovascular Mortality After MI Reduced by Cardiovascular Mortality After MI Reduced by Insulin Therapy in the DIGAMI StudyInsulin Therapy in the DIGAMI Study
All Subjects
Standard treatment
.7 Low-risk and Not Previously on InsulinIV Insulin 48 hours, then 4 injections daily
.7(N = 620)Risk reduction (28%)P = .011
.4
.5
.6 (N = 272)Risk reduction (51%)P = .0004
.4
.5
.6
.3
.2
.1
.3
.2
.1
00 1
Years of Follow-up2 3 4 5
00 1
Years of Follow-up2 3 4 5
MalmbergMalmberg, et al. BMJ. 1997;314:1512, et al. BMJ. 1997;314:1512--1515.1515.
6-11
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Intensive Insulin Therapy in Critically Ill Intensive Insulin Therapy in Critically Ill Patients Improves SurvivalPatients Improves SurvivalPatients Improves SurvivalPatients Improves Survival
100
S i l
96
92
Intensive treatment4.6% mortality
8% mortalitySurvival in ICU (%) 88
84
Conventional treatment
% y
800
84
0 20 40 60 80 100 120 140 160
Days after Admission
van den Berghe G, et al. N Engl J Med. 2001;345:1359–1367.
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Intensive Insulin Therapy in Critically Ill Intensive Insulin Therapy in Critically Ill PatientsPatientsPatientsPatients
Study N Target Mean Hypoglycemia Mortality Target Mean Hypoglycemia Mortality P Value
Conventional Insulin Therapy Intensive Insulin Therapy
Study N Target Glucose
MeanGlucose
Hypoglycemia Mortality Target Glucose
Mean Glucose
Hypoglycemia Mortality P Value
LeuvenSICU ‘01
1548 180-200 153 6 (0.8%) 63(8.0%)
80-110 103 39 (5.1%) 35 (4.6%) <0.04
LeuvenMICU ‘06
1200 180-200 153 19 (3.1%) 162 (26 8%)
80-110 111 111 (18.7%) 144(24 2%)
0.31MICU ‘06 (26.8%) (24.2%)
Glucontrol‘04
1101 140-180 144 13 (2.7%) 83 (15.3%)
80-110 117 44 (8.7%) 92 (17.2%)
0.410
VISEP ‘08 537 180-200 151 12 (4.1%) 75 (26%) 80-110 112 42 (17%) 61 (24.7%)
0.74( )
Colombia ‘08 504 180-200 148 2 (0.8%) 71 (31.2%)
80-110 117 21 (8.3%) 84(33.1%)
NS
Saudi Arabia ‘08
523 180-200 171 8 (3.1%) 44 (17.1%)
80-110 115 76 (28.6%) 36 (13.5%)
0.70
NICE SUGAR 6104 140-180 145 15 (0.5%) 751 (24.9%)
80-110 118 206 (6.8%) 829 (27.5%)
0.02
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Take Home Points from the ICU St diesTake Home Points from the ICU Studies
Do not neglect glycemic control in critically ill g g y ypatients, as studies have compared tight (80-110 mg/dl) with good control (140-180 mg/dl) but
i h l i h / l (not tight control with no/poor control (>200 mg/dl)
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Revised ADA/AACE Inpatient pGlucose Targets
ICU: 140-180 mg/dl ICU: 140 180 mg/dl
N ICU P l 100 140 /dl Non-ICU: Pre-meal 100-140 mg/dlPost-meal <180 mg/dl
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Oral AntiOral Anti--Diabetic AgentsDiabetic Agents
Impractical for managing inpatient hyperglycemia;Impractical for managing inpatient hyperglycemia;
••Delayed action profile Delayed action profile Li it d bilit t t t d h l iLi it d bilit t t t d h l i••Limited ability to treat more pronounced hyperglycemiaLimited ability to treat more pronounced hyperglycemia
••Contraindicated in renal, hepatic and cardiac dysfunctionContraindicated in renal, hepatic and cardiac dysfunction••HypoglycemiaHypoglycemia••Hypoglycemia Hypoglycemia
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Sliding Scale InsulinSliding Scale InsulinSliding Scale InsulinSliding Scale Insulin
Ineffective and not recommended as a sole therapyIneffective and not recommended as a sole therapy
Reactive approach to blood sugar control and delays Reactive approach to blood sugar control and delays insulin delivery until hyperglycemia developsinsulin delivery until hyperglycemia develops
Does not deliver basal insulin which is an essential part Does not deliver basal insulin which is an essential part of an insulin regimenof an insulin regimen
Promotes large swings in glucose controlPromotes large swings in glucose control
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Randomized Study of BasalRandomized Study of Basal--Bolus Insulin Therapy in the InpatientBolus Insulin Therapy in the InpatientRandomized Study of BasalRandomized Study of Basal--Bolus Insulin Therapy in the Inpatient Bolus Insulin Therapy in the Inpatient Management of Patients with Type 2 Diabetes (RABBIT 2 Trial)Management of Patients with Type 2 Diabetes (RABBIT 2 Trial)
B lo o d G lu c o s e L e v e ls D u r in g Is u lin T re a tm e n t
¶
*
* *¶ ¶ ¶g
mg/
dL)
2 0 0
2 2 0
2 4 0
*
Bloo
d gl
ucos
e (m
1 4 0
1 6 0
1 8 0
S S R I
L a n tu s + g lu lis in e
D a y s o f T h e ra p y
1 0 0
1 2 0
A d m it 1 2 3 4 5 6 7 8 9 1 0* p<0.01
¶ p<0.05D 3 P 0 06Day 3: P=0.06
Umpierrez, Diabetes Care 30: 2007
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Blood Glucose Levels in Patients Who Failed SSRI:Transition to Basal Bolus InsulinTransition to Basal Bolus Insulin
P: NS P: 0.02
280
300
ose
(mg/
dL)
200
220
240
260 SSRILantus plus Glulisine
¶¶
Blo
od G
luc
140
160
180
200¶
¶¶
Days of Therapy
0 1 2 3 4 5 6 7 8 9 10 11 12100
120
Admit 1 2 3 4 1 2 3 4 5 6 7
Days of Therapy
Failure was defined as 3 consecutive BG values > 240 mg/dL during SSRI
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Physiologic Serum Insulin Profile
7575
y g
BreakfastBreakfast LunchLunch DinnerDinner
((µU
/ml)
U/m
l)
5050
a in
sulin
a
insu
lin
2525Plas
mPl
asm
4 004 00 8 008 00 12 0012 00 16 0016 00 20 0020 00 24 0024 00 4 004 004:004:00 8:008:00 12:0012:00 16:0016:00 20:00 20:00 24:0024:00 4:004:00
TimeTime
8:008:00
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Available Insulin PreparationsAvailable Insulin Preparations
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Basal/Bolus Treatment Program with L d R id A ti A l
f
Long and Rapid Acting Analogs
Breakfast Lunch Dinner
Aspart, Lispro or Glulisine
lin
Glargine orsma
insu
l
Glargine or DetemirPl
as
4:00 16:00 20:00 24:00 4:00 8:0012:008:004:00 16:00 20:00 24:00 4:00 8:0012:008:00
Time
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Methods of Insulin Administration
MDI (multiple daily injections)( p y j )
CSI I(continuous subcutaneous insulin infusion)
CIII (continuous intravenous insulin infusion)
Added to TPN
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Multiple Daily Injections (MDIs)
Requires basal insulin (NPH, glargine or detemir) injected once or twice daily.
Requires premeal, bolus insulin with a rapid acting i li l (li t l li i ) d linsulin analog (lispro, aspart or glulisine) and plan for adjusting insulin for varying food intake.
Requires correction scale for high blood glucose.
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Determining Initial Insulin Needsg
Weight Based Determine Total Daily Insulin (TDI)y ( ) Multiply weight in Kg X 0.3 u/Kg for Type 1 and 0.5
u/Kg for Type 2 DMFor a 100 Kg person with type 2 DM, the TDI will be (100 X 0.5)=50 units daily
Half of the TDI is basal and rest of the half is bolus Half of the TDI is basal and rest of the half is bolus 50/2=25 units
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Basal Insulin
Glargine (Lantus) 25 units QDg ( ) Q
Detemir (Levemir) 25 units QD or 12-13 units BID
NPH (Humulin N or Novolin N) 12-13 units BID
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Bolus Insulin
Has two components -Meal carb coverage-Correction or SSI
Lispro (Humalog)
Aspart (Novolog)
Glulisine (Apidra)
Regular (Humulin R or Novolin R)
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Bolus Insulin (Scheduled Pre-meal)( )
2 Choicesi) Rule of 500: ( Insulin to Carbohydrate ratio; I to C )500/TDI500/50=10 grams1 unit of insulin covers 10 gm CHO-----------------------------------------------------------------------ii) Di id 25 it i t th lii) Divide 25 units into three meals 25/3= 88 units insulin (fixed dose) before each meal8 units insulin (fixed dose) before each meal
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Carbohydrate Content of Selected
1 b h d i (1 b) 15
Food Items
1 carbohydrate serving (1 carb)= 15 gmApple (medium) 21 gmApple pie (1 slice) 58 gmBagel (plain) 38 gmBanana (medium) 27 gmBread (1 slice) 12 gmCorn flakes 1 cup 25 gmDoughnut (plain) 23 gmIce cream (1/2 cup) 16 gmOJ (1 carton; 8 oz) 26 gmPasta (1/2 cup) 18 gmMilk (1 cup) 12 gm
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Reading LabelsReading Labels
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Normal Blood Gl cose ProfileNormal Blood Glucose Profile
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Bolus Insulin (Correctional/SSI)( )Sensitivity
Rule of 1700
1700/TDI
1700/50=34, rounded to 35
1 unit of insulin lowers this patients BG by 35mg/dl.
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Daily Insulin AdjustmentsDaily Insulin AdjustmentsDaily Insulin AdjustmentsDaily Insulin Adjustments
AMAM Noon Noon PMPM HSHSBeforeBefore 223223 278278 252252 305305BeforeBefore 223223 278278 252252 305305InsulinInsulin 198198 265265 311311 328328------------------------------------------------------------------------------------------------------------------------------------------AfterAfter 169169 214214 231231 253253InsulinInsulin 171171 187187 191191 209209
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Daily Insulin AdjustmentsDaily Insulin Adjustmentsy jy j(cont’d)(cont’d)
Increase basal insulin by 20%Increase basal insulin by 20%
GlargineGlargine from 25 units from 25 units 30 units30 units
R l l t b l i li f b l i li dR l l t b l i li f b l i li dRecalculate bolus insulin from new basal insulin doseRecalculate bolus insulin from new basal insulin dose
Total daily insulinTotal daily insulin 30+30= 60 units30+30= 60 unitsTotal daily insulin Total daily insulin 30+30 60 units30+30 60 unitsI to C ratio: 500/60= 8.3 I to C ratio: 500/60= 8.3 gmsgms, or 1 u per 8 gm , or 1 u per 8 gm carbscarbs or 2 u/cor 2 u/cSensitivity/ Correction: 1700/60= 28.3, or 1 u per 30 mg/dlSensitivity/ Correction: 1700/60= 28.3, or 1 u per 30 mg/dly , p gy , p g
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Managing patients already Managing patients already on insulinon insulin
Patients in good to fair control (A1c <8.0%)Patients in good to fair control (A1c <8.0%)
May continue with patient’s home insulin regimen, if POMay continue with patient’s home insulin regimen, if PO
If NPOIf NPODecrease basal insulin by 20Decrease basal insulin by 20--30% (glargine, detemir), 30% (glargine, detemir),
( ) i dj b l i li( ) i dj b l i lior 50% (NPH). Monitor FBG, adjust basal insulinor 50% (NPH). Monitor FBG, adjust basal insulinHold scheduled meal insulinHold scheduled meal insulinCalculate correctional insulin from new basal insulin doseCalculate correctional insulin from new basal insulin doseCalculate correctional insulin from new basal insulin dose Calculate correctional insulin from new basal insulin dose and use Q 4 hourlyand use Q 4 hourly
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Managing patients already Managing patients already on insulinon insulinon insulinon insulin
cont’dcont’d
Patients in poor control (A1c >8.0%)Patients in poor control (A1c >8.0%)If BGs 200s to 300s, titrate basal insulin up, recalculate meal and correction If BGs 200s to 300s, titrate basal insulin up, recalculate meal and correction
insulin from new TDIinsulin from new TDIExample:Example: AMAM Noon Noon PMPM HSHS
223223 278278 252252 305305198198 265265 311311 328328
Patient on glargine 30 units already, and aspart 5 u TID.Patient on glargine 30 units already, and aspart 5 u TID.Patient on glargine 30 units already, and aspart 5 u TID.Patient on glargine 30 units already, and aspart 5 u TID.
A 20% increase will be glargine 36 units dailyA 20% increase will be glargine 36 units dailyTDITDI 72 units72 unitsC b 500/72C b 500/72 1 7 2 b1 7 2 bCarb coverage: 500/72 Carb coverage: 500/72 1 u per 7 gms or 2 u per carb1 u per 7 gms or 2 u per carbCorrection: 1700/72 Correction: 1700/72 1 u per 241 u per 24
If BGs 400s, use insulin drip. Cover meals with s/c insulin while patient on If BGs 400s, use insulin drip. Cover meals with s/c insulin while patient on insulin drip. insulin drip.
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Indications for IV Insulin Infusion (Drip)
DKA or NKHS Extreme Hyperglycemia Critical Illness (ICU) NPO (uncertainty of duration of npo)
M j Major surgery TPN (At initiation) TFs (At initiation) TFs (At initiation) High dose Steroids
Always cover meals with s/c short acting insulin while patients on theinsulin drip to prevent food related increase in insulin drip rates
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Continuous Intravenous Insulin Infusion
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Inpatient Special Circumstances
Transitioning from intravenous insulin infusion tosubcutaneous insulin
Determine 24 hour IV total insulin received and calculate80% of this. This will be Total Daily Insulin (TDI)
If patient NPO, give all 80% as basal insulin (Glargine or Detemir)If i ki PO h b d i b l i li If patient taking PO, then best to determine basal insulin needs from overnight insulin drip rates
Calculate prandial insulin with rule of 500, and Calculate prandial insulin with rule of 500, and correction with rule of 1700
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IV I li t S/C C iIV I li t S/C C iIV Insulin to S/C ConversionIV Insulin to S/C Conversion
•• 3.4 u/ 4 hours = 20.4 units / 24 hours3.4 u/ 4 hours = 20.4 units / 24 hours•• Take 80% of 20 units = 16 units. This is the basal insulinTake 80% of 20 units = 16 units. This is the basal insulin•• If 16 units is the basal insulin, then TDI =32 unitsIf 16 units is the basal insulin, then TDI =32 units•• Meal Insulin to Meal Insulin to CarbCarb ratio= 500/32 = 15.6 ratio= 500/32 = 15.6 gmsgms•• Correction Insulin= 1700/32 = 53 mg/dl, may use Correction Insulin= 1700/32 = 53 mg/dl, may use
prepre--built medium intensity SSI built medium intensity SSI
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Inpatient Special Circumstancesp pTPN
Hyperglycemia resulting from TPN may be treated with;
Adding insulin to the TPN (ideal)
Continuous Intravenous Insulin Infusion (at least initially)(at least initially)
S/C long acting insulin (least desirable)
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TPN CompositionTPN Composition
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Adding Insulin to TPN
Assess total carbohydrate in the TPN ( e.g; 22.5% in 1 liter = 225 gm)
Assess insulin to carbohydrate ratio from TDI (e.g; 1 u/ 10 gms or 1.5 u/carb)Assess insulin to carbohydrate ratio from TDI (e.g; 1 u/ 10 gms or 1.5 u/carb)
Divide 225 gm/10= 22.5 units insulin
Add regular insulin 22.5 units to each TPN bag
Calculate insulin to carbohydrate in grams ratio; 22 5/225= 0 1 u/gm dextroseCalculate insulin to carbohydrate in grams ratio; 22.5/225 0.1 u/gm dextrose
Give this ratio to the pharmacist to be maintained for any TPN dextrose ∆s
Increase in daily increments 0.025-0.05 U/gm until desired glucose levels
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Inpatient Special CircumstancesInpatient Special CircumstancesInpatient Special CircumstancesInpatient Special CircumstancesTUBE FEEDS
Ideally start with insulin infusion until desired TF rate reachedAdd up 24 hour drip rates, take 80% of it;If TFs continuous switch insulin to once/twice daily basal InsulinIf TFs continuous, switch insulin to once/twice daily basal Insulin.If TFs nocturnal, use NPH. -------------------------------------------------------------------------------Determine the amount of carbohydrate in the tube feed formulae.g; 150 gms per literDetermine insulin to carbohydrate ratio, e.g; 1 u per 10 gm carbs.Divide 150 gms/10= 15 units. This is the basal insulin dose. If patient already on certain basal insulin, add the above 15 units to the existing basal insulin dose to cover the tube feedsexisting basal insulin dose to cover the tube feeds
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Available Insulin PreparationsAvailable Insulin Preparations
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Inpatient Special Circumstancesp pHigh Dose Steroids
Start with insulin infusion initially.
Once stable insulin drip rates achieved with BGs in target, switch to s/c insulin
Al l ith / h t ti i li hilAlways cover meals with s/c short acting insulin while patients on the insulin drip to prevent food related increase in insulin drip ratesincrease in insulin drip rates
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S mmarSummary
Hospital hyperglycemia is harmful and leads to poor outcomes Insulin is a preferred agent to treat hospital hyperglycemia, oral agents are
discouraged In the ICU, use IV insulin infusion. Studies support relaxed targets but do
not recommend poor or no control Always give basal insulin (Glargine, Levemir, NPH) 1-2 hours before
i i li d istopping insulin drips Insulin should not be used as sliding scale alone, and instead as either
basal/bolus therapy or IV infusion form Insulin may be added to TPN as needed to provide more stable control Insulin may be added to TPN as needed to provide more stable control Steroid Induced and nutritional hyperglycemia is best treated with IV
insulin initially Always get HbA1c on hyperglycemic patients Always get HbA1c on hyperglycemic patients