infective endocarditis 2017...infective endocarditis: devices recommendations cor loe complete...
TRANSCRIPT
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Infective Endocarditis 2017Patrick T. O’Gara, MD
BWH Heart and Vascular CenterProfessor of Medicine, Harvard Medical School
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Disclosures
• NHLBI CTSN Co-chair
• Medtronic Apollo Exec Cmte
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Case
• 55 year old man with recently appreciated
T2DM
• Several weeks of low back pain, anorexia,
weight loss and 1 day of fever (102)
• Low back and L flank pain with hip flexion
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Case
55 year old man with recently appreciated
T2DM
Several weeks of low back pain, anorexia,
weight loss and 1 day of fever (102)
• Systolic heart murmur
TTE: MR, no vegetation
• Cultures: S. mutans
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TEE
Indications for surgery?
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Infective EndocarditisChanging Epidemiology
Then
• RHD
• Younger
• Native valve disease
• Streptococci
• “sub-acute” illness
Now
• Degenerative disease
• Older (DM, ESRD, etc.)
• IJDUs, CIEDs
• S. aureus, MRSA, ABx-
• “acute” illness
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Infective EndocarditisChanging Epidemiology
Healthy 43 year old man with S. bovis NVE
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Diagnosis
ESC Guidelines. Eur Heart J 2009, 2015
• Index of suspicion
• Blood cultures x 2
• Special studies
• Nutrient media
• PCR, etc.
Revised
Duke Criteria
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PET-CT for Endocarditis
Pizzi MN et al. Circulation 2015; 132:1113-26
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Infective Endocarditis Changing Epidemiology
• 6-month mortality rates 20-25%
• Early surgery in IE ~ 60%
• Peri-operative mortality ~10%
• Re-infection of prosthesis ~2%
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In-Hospital Mortality and Early Surgery
Thuny F et al. Lancet 2012; 379:965-75
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RCT: Early Surgery for IE
Kang D et al. N Engl J Med 2012;366:2466-2473.
• N=78
• Mean age 47 y
•~ 1/2 w/ emboli on adm
• ~1/3 w/ size >15mm
• ~ 60% streptococci
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Infective EndocarditisStroke Rate after Antibiotics
0
1
2
3
4
5
6
1 2 3 4 5 6
Weeks of Antimicrobial Therapy
Str
ok
es/1
00
0 p
ati
ent
da
ys
Dickerman S et al (ICE-PCS). Am Heart J 2007;154:1086-94.
Variable OR (95% CI) p
S. Aureus 1.55 (1.10-2.17) 0.01
Viridans strep 0.59 (0.35-0.98) 0.04
Abscess 1.56(1.06-2.30) 0.02
MV veg 1.93(1.49-2.50) <0.0001
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Infective EndocarditisIndications for Surgery
Class I
– Heart Failure
– Evidence of LV dysfunction or PA HTN
– Abscess, Fistula, Pseudo-Aneurysm
– Fungal or highly resistant bacterial IE
– Persistent bacteremia after 1 week Ab Rx
NATIVE VALVE IE
ACC/AHA 2006/2014/2017; ESC 2009,2015
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Infective EndocarditisIndications for Surgery
Class II
– Recurrent emboli and persistent vegetation
despite appropriate AB Rx (IIa)
– Large ( > 10mm) mobile vegetation,
particularly on AMVL (IIb)
– Increase in vegetation size on AB Rx (IIb)
NATIVE VALVE IE
ACC/AHA 2006/2014/2017; ESC 2009, 2015
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Acute Severe AR
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1 Year SurvivalImpact of Vegetation Size
N = 384
P = 0.001
L < 15 mm
L > 15 mm
% S
urv
ival
Days
Thuny F et al. Circulation 2005; 112: 69-75.
Multi-variable analysis
• ARR 1.8 (1.10-2.82)
• P = 0.02
L > 10 mm predicts new embolus
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Question A 64 year old woman suffers a small ischemic stroke on the day following presentation with S.aureus endocarditis affecting the aortic valve and resulting in severe AR with heart failure and first degree AV block. Head imaging shows no hemorrhage. When do you advise surgery?
1.1 week2.2 weeks3.4 weeks4.Without delay
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Question A 64 year old woman suffers a small ischemic stroke on the day following presentation with S.aureus endocarditis affecting the aortic valve and resulting in severe AR with heart failure and first degree AV block. Head imaging shows no hemorrhage. When do you advise surgery?
1.1 week2.2 weeks3.4 weeks4.Without delay
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A B C
Courtesy of F. Schoen
Prosthetic Valve Endocarditis
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Prosthetic Valve EndocarditisHospital Mortality
0
0.1
0.2
0.3
0.4
0.5
0.6
0 10 20 30 40 50 60 70 80 90
Days
Mort
ali
ty, p
rop
ort
ion
S. aureus
Other
HR 1.77 (1.21-2.57), p=0.003
Wang A et al. JAMA 2007; 297: 1354-61.
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Prognosis
• Patient-specific risk
- Age, co-morbidities (ESRD)
- PVE vs NVE
• Organism-related factors
- S. aureus, MSRA, other
• Vegetation-related factors
- Size, change in size
• Complications
- Valve function, HF
- Stroke, embolism
- Abscess, etc
• Surgical treatment (↓)
Chu VH. Circulation 2004; 109:1745.
Thuny F. Circulation 2005; 112:69.
Murdoch DR. Arch Intern Med 2009; 169:463.
Lalani T et al. Circulation 2010; 121:1005-13.
Thuny F et al. Lancet 2012; 379:965-75.
Kang D et al. N Engl J Med 2012;366:2466-2473
Park LP et al. JAHA 2016; 5:e003016doi:10.1161/JAHA. 115.003016
Mortality
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Infective Endocarditis: Devices
Recommendations COR LOE
Complete removal of pacemaker or
defibrillator systems, including all leads and
the generator, is indicated as part of the early
management plan in patients with IE with
documented infection of the device or leads
I B
Complete removal of pacemaker or
defibrillator systems, including all leads and
the generator, is reasonable in patients with
valvular IE caused by Staphylococcal aureus
or fungi, even without evidence of device or
lead infection
IIa B
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Infective Endocarditis: Devices (cont.)
Recommendations COR LOE
Complete removal of pacemaker or
defibrillator systems, including all leads
and the generator, is reasonable in patients
undergoing valve surgery for valvular IE
IIa C
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Summary
• Variable modes of presentation
• Increasing role for advanced imaging
• Multi-disciplinary team approach
• Increasing performance of surgery in
the acute-subacute phase of IE
• Long-term follow up
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INFECTIVE ENDOCARDITISINDICATIONS FOR SURGERY
CLASS I
– Heart Failure (IB)
– Severe prosthetic valve dysfunction (IB)
– Dehiscence, abscess, fistula, etc. (IB)
– Fungal or highly resistant bacterial PVE (IC)
PROSTHETIC VALVE IE
ACC/AHA VALVE GUIDELINES
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INFECTIVE ENDOCARDITISINDICATIONS FOR SURGERY
CLASS II
– Persistent bacteremia or recurrent emboli
despite appropriate AB Rx (IIa, C)
– Relapsing infection (IIa, C)
PROSTHETIC VALVE IE
ACC/AHA VALVE GUIDELINES 2006
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Diagnosis and Treatment of Infective Endocarditis