Practical Tips in β-blocker Therapy in CHF β-blocker Therapy in CHF CMCC 11 th 11 th September...
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Transcript of Practical Tips in β-blocker Therapy in CHF β-blocker Therapy in CHF CMCC 11 th 11 th September...
Practical Tips inPractical Tips in
ββ-blocker Therapy in CHF-blocker Therapy in CHFCMCC 11CMCC 11thth 11 11thth September 2009 September 2009
Rungsrit Kanjanavanit MD. Rungsrit Kanjanavanit MD. Cardiovascular Div. Dept. of MedicineCardiovascular Div. Dept. of Medicine
Faculty of Medicine , Chiang Mai Univ. Faculty of Medicine , Chiang Mai Univ.
Utilization of HF medications in clinical practiceUtilization of HF medications in clinical practiceEuro Heart SurveyEuro Heart Survey
87
62
37 36 33
21 21 17
0102030405060708090
100
Komajda M et al. Eur Heart J 2003
%
Trials excluded patients with relative contraindications
Not very old , mainly white men, no complicated medical history
In real life , more than 75% have at least one relative contraindication
Clinical trials VS Real world populationClinical trials VS Real world population
Co-morbidities CMU HF clinicCo-morbidities CMU HF clinic
15.6
20
33.3
62.2 6051.1
11.10
10
20
30
40
50
60
70
CAD DM HT dyslipid CRF COPD
44.4 % had > 3 comorbidities
Not adhering to guidelinesNot adhering to guidelines
Can the difference between the real world patients and RCT’s solely explain these findings?
No
83% of SOLVD-eligible were on ACEI Almost half of these received the target dose as recom
mended in the guidelines
54% of MERIT-HF-eligible were on β-blockers 10% of these received the target dose.
43% of RALES-eligible patients were on
aldosterone antagonist
Euro Heart Survey on Heart FailureEuro Heart Survey on Heart Failure
Lenzen MJ et al. European Heart Journal (2005) 26, 2706–2713
‘adherence’ related solely to physicians following guidelines,
not to patient compliance or persistence.
Barrier to Barrier to ββ-blocker prescription-blocker prescription
Uninformed clinicians Perceived complexity in initiation and up-titration
Lack of time and expertise for “micromanagement” required with complex regimen
Risk of intolerance and worsening of HF symptoms with initiation
Perceived delay in beneficial effects on outcomes
Economic restraints – in some hospital ,UC may not cover evidenced-based β-blocker for HF
1. Enalapril (20) ½ tab bid pc.1. Enalapril (20) ½ tab bid pc.
2. Bisoprolol (5) 1 tab OD.2. Bisoprolol (5) 1 tab OD.
3. Spironolactone (25) 1 tab OD.3. Spironolactone (25) 1 tab OD.
4. Digoxin (0.25) ½ tab E.O.D.4. Digoxin (0.25) ½ tab E.O.D.
5. Furosemide (40) 1 tab prn for 5. Furosemide (40) 1 tab prn for dyspnea ,edema or weight gain dyspnea ,edema or weight gain > 1 kg in 2 days> 1 kg in 2 days
13. Warfarin (3) ½ tab o OD. 13. Warfarin (3) ½ tab o OD. Except Mon. and Wed.Except Mon. and Wed.
14.14. Warfarin (5) ½ tab o OD. Warfarin (5) ½ tab o OD. Only on Mon. and Wed.Only on Mon. and Wed.
6. Glibencarmide(5) 1½ tab bid ac6. Glibencarmide(5) 1½ tab bid ac
7. Metformin (500) 1 tab tid pc7. Metformin (500) 1 tab tid pc
8. Aspirin (300) 1 tab OD.8. Aspirin (300) 1 tab OD.
9. ISDN (10) 2 tab tid ac9. ISDN (10) 2 tab tid ac
10. Isordil (5) 1 tab SL prn10. Isordil (5) 1 tab SL prn
11. Amlodipine (10) 1 tab OD.11. Amlodipine (10) 1 tab OD.
15.15. Lorazepam 1 tab prn hs.Lorazepam 1 tab prn hs.
16.16. Senekot 2 tab o hs Senekot 2 tab o hs
12. Atrovastatin (20) 1 tab pc evening12. Atrovastatin (20) 1 tab pc evening
Drugs Prescriptions of Mr. Had-enoughDrugs Prescriptions of Mr. Had-enough
POLYPHARMACYPOLYPHARMACY
17. Omeprazole (20) 1 tab o OD17. Omeprazole (20) 1 tab o OD
Tip # 1Tip # 1Implementation of Implementation of β blocker β blocker therapy -When?therapy -When?
A simplified criteria
1. Edema free
2. Not requiring intravenous
medication for HF
Which and what doseWhich and what dose
Starting dose(mg) Target dose(mg)
Bisoprolol 1.25 od 10 od
Metroprolol CR/XL 12.5-25 od 200 od
Carvedilol 3.125 bid 25-50 bid
Nebivolol 1.25 od 10 od
Titration period – weeks to monthsTitration period – weeks to months
Tip # 2 How to use Tip # 2 How to use ββ blocker blocker
Start early but with low dose
Double dose at not less than 2 weekly interval
Aim for target dose or highest tolerated dose
Some β blocker is better than no β blocker
Monitor HR,BP,BW and signs of congestion
Check blood chemistry 1-2 week after inhibition
and 1-2 week after final dose titration
Dry and Dry and WarmWarm
Wet and Wet and WarmWarm
Dry and Dry and ColdCold
Wet and Wet and ColdCold
Fluid statusFluid statusP
erfu
sion
Per
fusi
on
Dry Wet
Warm
Cold
Tip # 3Tip # 3Patient came in with decompensated HF Patient came in with decompensated HF
What to doWhat to do
Wet and warm IV diuretics No need to decrease dose of β-blocker Up-titrate dose of ACEi and β-blocker when stabilized
Wet and cold Positive inotropic support (PDE inhibitors) Decrease the dose of β-blocker by 50% Reintroduction or up-titrate β-blocker when stabilized
B-CONVINCEDB-CONVINCEDBeta-blocker CONtinuation Vs. INterrupion in Beta-blocker CONtinuation Vs. INterrupion in
patients with Congestive heart failure hospitalizED patients with Congestive heart failure hospitalizED for a decompensation episodefor a decompensation episode EHJ (2009) 30,1-7EHJ (2009) 30,1-7
During ADHF, continuation of β-blocker is not associated with delayed or lesser improvement, but with higher rate of chronic prescription of β-blocker therapy after 3 months
Keepβ-blocker
Stopβ-blockerADHF
69
78
HF improves at Day 3
92.8 %
92.3 %
β-blocker at 3 months
90 %
76 %
Plasma BNP, LOS, rehospitalization rate, death rate also similar
Tip # 4 How to use DiureticsTip # 4 How to use Diuretics
Lower the dose or stop before initiation of
ACEi and spironolactone
(avoid hypovolemia )
Increase the dose before initiation of
β- blocker
( make sure there is no fluid retention )
The most important tool in HF managementThe most important tool in HF management
Self daily weight monitoring :Self daily weight monitoring :
If weight increases > 1 kg within 1 or 2 days If weight increases > 1 kg within 1 or 2 days
double the dose of diuretics , until returns to ideal BWdouble the dose of diuretics , until returns to ideal BW
• Weigh every morningWeigh every morning
• After going to toiletAfter going to toilet
• Before getting dressedBefore getting dressed
• Before breakfastBefore breakfast
Tip # 5 Dealing with Tip # 5 Dealing with low heart ratelow heart rate
If < 50 bpm, halve dose of β-blockerReview other medications
Drug interaction to look for : DigitalisVerapamil / diltiazem - should be discontinueAmiodarone
Tips # 6Tips # 6
Be persistant ! Minor setback can be overcome
Any general sense of un-wellness will generally resolve in a few week
More than 85% will tolerate β blocker
Tip # Tip # 77Problem solving : HypotensionProblem solving : Hypotension
Asymptomatic low BP does not require any
change in therapy.
HypoPERFUSION not hypoTENSION is the
concern.
Dizziness,light-headedness and confusion D/C nitrates, CCB , other vasodilators
reducing dose of the diuretics if no signs/symptoms of
congestion
CaseCase ผู้��ป่�วยชาย อาย� 21 ป่
ได้�รั�บการัว�นิ�จฉั�ยเป่�นิ DCM มาติ�ด้ติามการัรั�กษาหลั�งออกจากโรังพยาบาลั อาการัด้"ขึ้$%นิ จาก NYHA III เป่�นิ II ติรัวจรั&างกาย : HR 100 bpm
BP 100/60 mmHg No lung crepitation No edemaผู้ลัการัติรัวจห�องป่ฏิ�บ�ติ�การั serum Cr 1.3 mg/dl, K 4.0 mg/dlการัรั�กษาที่")ได้�รั�บ Ramipril 2.5mg/d Furosemide 40mg/d Digoxin 0.125mg/d
What would you do?What would you do?
1. Increase dose of ramipril (target dose 10mg/d)
2. Add very low dose β-blocker
3. Increase dose of digoxin (to control HR)
4. Leave him with this regimen
(now asymptomatic)
ATLAS (Assessment of Treatment with ATLAS (Assessment of Treatment with Lisinopril and Survival)Lisinopril and Survival)
3164pt. NYHA II-IV, LV EF <30% F/U 45.7mo
Low (2.5-5.0mg) High (32.5-35mg)
Mortality (%) 44.9 42.5CV mortality (%) 40.2 37.2Hospitalization (no.)* 4327 3819HF hospitalization(no)* 1576 1999
Circ.1999;100:2312-2318
ATLAS : low dose VS high dose NNT to avoid rehospitalization = 4
LVESVI: Change From BaselineLVESVI: Change From Baseline
* P < 0.05, ** P < 0.001* P < 0.05, ** P < 0.001
EnalaprilEnalaprilCarvedilolCarvedilol
-10-10
-8-8
-6-6
-4-4
-2-2
00
22
44
**** **** ****
** ** **
L
VE
SV
I (m
l/m
LV
ES
VI
(ml/
m22 ))
M6M6 M12M12 M18M18 M6M6 M18M18M12M12 M6M6 M12M12 M18M18
Carvedilol &Carvedilol &EnalaprilEnalapril
CARMEN StudyCARMEN Study
LVEF: Change From BaselineLVEF: Change From Baseline
* P < 0.05; ** P < 0.01; *** P < 0.001* P < 0.05; ** P < 0.01; *** P < 0.001
EnalaprilEnalaprilCarvedilol &Carvedilol &EnalaprilEnalapril
CarvedilolCarvedilol
-1-1
00
11
22
33
44
55
L
VE
F (
%)
LV
EF
(%
)
****** ****** ******
****** ****** ****
**
M6M6 M12M12 M18M18 M6M6 M18M18M12M12 M6M6 M12M12 M18M18
CARMEN StudyCARMEN Study
Comparing two different strategies Comparing two different strategies in patients receiving low dose ACEi in patients receiving low dose ACEi
Increasing ACEi to Increasing ACEi to maximal dosesmaximal doses
Adding Adding ββ-blocker-blocker
Effect on symptomsEffect on symptoms No changeNo change Improved Improved
Effect on risk of Effect on risk of deathdeath
8% reduction8% reduction 30-40% reduction30-40% reduction
Effect on risk of Effect on risk of death and death and
hospitalizationhospitalization
12% reduction12% reduction 20-40% reduction20-40% reduction
ATLASATLAS MERIT HFMERIT HF
Combined use of low doses of several drugs is preferred to a large dose of a single agent.
Tip # 9 Tip # 9
Six patterns of taking medication among patients treatedSix patterns of taking medication among patients treatedfor chronic illnesses for chronic illnesses who continue to take their medicationswho continue to take their medications
perfect adherence
some timing irregularity
miss an occasional single day’s dose
drug holidays three to four times a year
drug holiday monthly or more
take few or no doses
1/6
1/6
1/6
1/6
1/6
1/6
N Engl J Med 2005;353:487-97
“ Good drugs do not work on patients who do not take them ”
C. Everett Koop, M.D.
Tip # 10Tip # 10FactFact
Inadequate education
poor self-motivation
poor compliance
forgetfulnesspoor family
supportdrugs side effectdrugs side effect
Complexity of the medication regimen
Excessive costDepression
Patient educationPatient education
Self managementSelf management
Heart transplantHeart transplant
RevascularizationRevascularization
Resynchronization TherapyResynchronization Therapy
Pharmacologic TherapyPharmacologic Therapy
“ “ filling the in the care of chronic filling the in the care of chronic diseases ”diseases ”
Disease management programDisease management program
Low tech – high touch therapy
G A PG A P
Pyramid of HF care
10 Practical Tips - Summary10 Practical Tips - Summary
1. A simplified criteria when to start
2. How to titrate and what to monitor
3. Do not stop blocker when patients come in with ADHF unless inotropes is needed (low output syndrome)
4. Know how to use diuretics effectively 1. Flexible regimen
2. Dealing with diuretic resistance
10 Practical Tips - Summary10 Practical Tips - Summary
5. Dealing with low heart rate
6. Be persistent
7. Hypotension VS hypoperfusion
8. Measure both supine and upright BP in every
HF patients at every visit
9. Combined use of low to moderate doses of
several drugs is preferred to a large dose of a
single agent
10. Nurses are doctor’s best friend