Download - Interna - Penyakit Katup Jantung
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Valvular Heart Disease
Hakim Alkatiri
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Mitral Stenosis
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Mitral Stenosis
Causes •rheumatic fever•congenital abnormality, calcification, myxoma
Natural history•RF age 12•murmur 1st heard 20 yrs later•symptoms in 3-4th decade
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Mitral Stenosis - Clinical features Severity MVA (cm²) LAP (mm Hg) CO
Mild >2.0 <10-12 NL
Moderate 1.1-2.0 ~10-17 NL
Severe <1.0 >18
Very Severe <0.8 >20-25
Severity Symptoms
Mild Asymptomatic or mild DOE
Moderate Mild-mod DOE; orthopnea, PND, hemoptysis
Severe Dyspnea at rest; possible pulmonary edema
Very Severe Severe PHT; RV failure, marked dyspnea at rest;severe fatigue; cyanosis
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Mitral Stenosis - Examination
InspectionMalar flushPeripheral cyanosis (severe MS)Jugular venous distension (right ventricular failure)
PalpationParasternal right ventricular impulsePalpable pulmonary arterial impulsePalpable S1, P2, and occasionally, the diastolic rumble
AuscultationIncreased intensity of the first heart soundOpening snapLow-pitched diastolic rumbling murmur
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Mitral Stenosis - Treatment
Medical
•Diuretic - pulmonary congestion
•Prevent embolism - cause of 19% deaths, with LA size and age
anticoagulate all with PAF/AF, SR in older age
•Control atrial fibrillation
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Mitral Stenosis - Treatment
Balloon Mitral Valvuloplasty
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Mitral Stenosis - Treatment
Balloon Mitral Valvuloplasty
•100% MVA, final area ~2cm2
•Failure rate 1-15%
•Mortality 0-3%
•Severe MR 2-10%
•Restenosis ~40% at 7years
•Contraindications - thrombus, MR, Ca++, other disease
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Mitral Stenosis - Treatment
Mitral Valve Replacement
•Open mitral valvotomy
•Mitral valve replacement
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Mitral Regurgitation - Aetiology
•Primary
Annulus annular calcification
Leaflet myxomatous degeneration
rheumatic deformity
infectious perforation
Chordae myxomatous degeneration
spontaneous rupture
rheumatic shortening
infectious destruction
Papillary infarction
ischemic lengthening•Functional
LV dilatation and PM displacement
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CXR
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Mitral Regurgitation - Pathophysiology
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Mitral Regurgitation - Clinical findings
Acute dyspnoea, orthopnoea
no cardiomegaly, short murmur, S3
Chronic variable symptoms
cardiomegaly, murmur, P2 loud, S3
Quantification
•echocardiography, angiography
•serial studies, LV function
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Mitral Regurgitation - Outcome in Chronic MR
Variable course - diagnosis to symptoms 16 years
Symptomatic severe - survival 33% at 5 years
mortality ~5% per year
LV dysfunction most important factor
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Mitral Regurgitation - Treatment
•Diuretics LV filling P, p oedema
•Vasodilators forward SV
•IABP
Acute
Chronic
No known effective therapy
•Vasodilators - theoretical risks
•Treat complications
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Mitral Regurgitation - Surgery
Options
•Valve repair
•MVR with chordal preservation
•MVR with destruction MV apparatus
Outcome
•Mortality 80-94% v 40-60% at 5-10years
•Valve function
•Ventricular function
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Mitral Regurgitation - Indications for surgery
No randomised trials!!
1. Symptomatic with normal LV function
•prognosis worse once NYHA class II symptoms
2. Symptomatic with abnormal LV function
• If severe LV impairment - poor outlook
•EF < 30% ?medical Rx better
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Mitral Regurgitation - Indications for surgery
3. Asymptomatic with abnormal LV function
• ? Asymptomatic
•Detection of LV dysfunction is the key
EF<60%, LVESD > 45mm, LVESV>55ml/m2
4. Asymptomatic with normal LV function
•?guaranteed repair
•PHT, recent AF
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Mitral Regurgitation - Indications for surgery
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Mitral Regurgitation - Prolapse
•2-4% population
•females:males 2:1
•diagnosis from echocardiography
•subcategory according to leaflet abnormality
•SBE prophylaxis; normal + MR or abnormal leaflets
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Aortic Stenosis - Aetiology
•Congenital 1st-3rd decade
Valve degeneration and calcification
•Rheumatic - 4th decade
•Bicuspid valve; 1%, males>females, 5-6th decades
•Tricuspid valve - 7-8th decades, 1-2% incidence
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Aortic Stenosis - Pathophysiology
LV pressure overload LV hypertrophy diastolic LV dysfunction
Systolic function usually preserved except late in disease
Systolic function improves with AVR
Outcome is dependent on symptoms
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Aortic Stenosis - Clinical features
Symptoms
•None
•DOE, dizziness
•HF, syncope, angina
Examination
•Pulse - amplitude, delay
•Sustained apex
•S2- soft and single paradoxical splitting
•ESM - loud late peak soft
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Aortic Stenosis - Severity
Echocardiography
Meangradient(mmHg)
Peak Aovelocity
AVA(cm2)
Normal 1.0-2.0 >2.5
Mild <20 2.5-2.9 >1.7
Moderate 20-40 3.0-4.0 1.0-1.7
Severe >40 >4.0 <1.0
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Aortic Stenosis - Outcome
Symptoms
•2-year survival < 50%
Asymptomatic
•Generally good prognosis
•Peak velocity >4.0m/s 2yr event-free survival 21%
•Progression of> 0.3m/s per year - worse
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Aortic Stenosis - Treatment
Medical
•None!!!
•Diuretics v LVF
•ACEI contraindicated
Balloon aortic valvuloplasty
•Average MVA improvement 0.8cm2 1.0cm2
•Restenosis <6/12 in 50%
•No improvement in mortality
•Procedural mortality 5%
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Aortic Stenosis - AVR
Indicated only if symptomatic
•Mortality 0.6-5%
•Survival 67-85% at 5 yrs, 70% at 10yrs
•2yr survival 4x greater than medical treatment
LV dysfunction
•?impairment from pressure overload or other cause
•DSE may be helpful
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Aortic Stenosis - AVR
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Aortic Regurgitation - Aetiology
Root
Annuloaoroectasia
Marfans
Dissection
Syphillis
Ankylosing spondylitis
Leaflet
Endocarditis
Bicuspid valve
Rheumatic heart disease
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Aortic Regurgitation - Pathophysiology
Normal
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Acute Aortic Regurgitation - Clinical features
No time for LV to enlarge
total SV, fwd SV, LVEDP
Quiet S1 (presystolic MV closure), short murmur
Treatment
•Medical therapy ineffective
•AVR if symptoms/signs LVF
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Chronic Aortic Regurgitation - Clinical features
total SV, maintained fwd SV, RV runoff in diastole systolic BP, diastolic BP
Volume and pressure overload
Examination - hyperdynamic circulation, wide pulse pressure, dilated LV, EDM duration important
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Chronic Aortic Regurgitation - Clinical features
Maybe asymptomatic, LVF, angina
LV decompensation
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Chronic Aortic Regurgitation - Treatment
Medical - afterload
Nifedipine 20mg bd delayed surgery by 2-3 yrs
Duplicated with small ACEI trials
Vasodilator therapy
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ACC / AHA Practice Guidelines 2006Indications for AVr/R
Class I1. AVR is indicated for Symptomatic patients with
severe AR irrespective of LV systolic function. 2. AVR is indicated for asymptomatic patients with
chronic severe AR and LV systolic dysfunction ( EF 50 % or less) at rest.
3 AVR is indicated for patiens with chronic severe AR while undergoing CABG or surgery on the aorta or other heart valves.
ACC / AHA Practice Guidelines 2006Indications for AVr/R
Class I1. AVR is indicated for Symptomatic patients with
severe AR irrespective of LV systolic function. 2. AVR is indicated for asymptomatic patients with
chronic severe AR and LV systolic dysfunction ( EF 50 % or less) at rest.
3 AVR is indicated for patiens with chronic severe AR while undergoing CABG or surgery on the aorta or other heart valves.
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SummaryDiagnosis Auscultation Other P. E Radiograph ECG Therapy
- S1 loud diureticMirtal - Opening snap - ↑LA, PA, RV - RAD, LAE anti coagulanstenosis present followed RV lift - Normal LV - (±) RVH
by a mid-diastolic BMVrumble surgery- Holosystolic LV heave ↑ LA and LV - LAE diuretic
Mitral Regur- usually radiating - AF vasodilatorgitation to the axilla common
- S1 soft, S3 surgerycommon
Aortic - Ejection type - LVH none !!stenosis early systolic May have a - Aortic (medical)(transmitted murmur thrill at the valve LAD and BAVfrom base) - Also heard at right 2nd ICS calcification LVH surgery
right 2nd ICS withradiation to thecarotids
Aortic diastolicregurgitation murmur at left - RV lift Hypovascular vasodilator
base - Peripheral lung fields if - RAD surgery- P2 loud if PR signs or AR pulmonary - RVHsecondary to absent hypertensionpulmonary presenthypertension
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SummaryDiagnosis Auscultation Other P. E Radiograph ECG Therapy
- S1 loudTricuspid - Mid-diastolicstenosis rumble ↑ a waves ↑ RA and SVC RAE
- increased by in JVPinspirationHolosystolic - ↑ V waves
Tricuspid murmur increases in JVP ↑ RA, ↑RV,regurgitation with inspiration - Pulsating ↑ SVC RAD
(Carvallo's sign) liver- RV failure
Ejection sistolic - RVHPulmonary with click ↑ A wave in - Poststenotic - RVHstenosis - S2 split, P2 soft JVP dilatation of -RAD
or absent PADiastolic
Pulmonary murmur at left - RV lift hypovascularregurgitation base - Peripheral lung fields if - RAD
- P2 loud if PR signs og AR pulmonary - RVHsecondary to absent hypertensionpulmonary presenthypertension
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