valvular heart disease - gmcsurat.edu.in valvular heart disease dr piyush b. tailor associate...
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Valvular Heart DiseaseValvular Heart Disease
Dr Piyush B. Tailor
Associate Professor
Govt. Medical College
Surat
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Cardiac PhysiologyCardiac Physiology
Systole = Ventricular ContractionSystole = Ventricular Contraction
Diastole = Diastole = AtrailAtrail Filling Filling
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Cardiac PhysiologyCardiac Physiology
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Type of Valvular Defect
Regurgitation• Incomplete Closing of Valve
• leaking (backflow) of blood across a closed valve
Stenosis• Incomplete Opening of Valve
• Obstruction of (forward) flow across an opened valve
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Type of Murmur
• Systole Murmur
• Aortic Stenosis = Incomplete Opening of Aortic Valve
• Mitral Regurgitation = Incomplete closing of Mitral
Valve
• Diastole Murmur
• Aortic Regurgitation = Incomplete closing of Aortic
ValveValve
• Mitral Stenosis = Incomplete Opening of Mitral Valve
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Mitral Stenosis
Etiology• Rheumatic disease• Degenerative disease like Calcification• Congenital valvular malformation• Connective tissue disorders• Connective tissue disorders• Post-inflammatory, metabolic syndromes • Prosthetic valve – later after implant
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Pathophysiology
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Pathophysiology
• Increase in left atrial pressure
• Increase Pulmonary capillary
• Pulmonary venous congestion
• Decrease Diastolic filling
• Atrial contraction
Left Atrial dilation • Left Atrial dilation • Atrial fibrillation
• Thrombos formation
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Mitral Stenosis
Clinical Presentations
Symptom
• Asymtomatic
• Syncopal attack
• Palpitation
• Dyspnea• Dyspnea
• Paroxysmal Noctural Dyspnea
• Orthopnea
• Hemoptysis
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Mitral Stenosis
Sign
• Tachapnia
• Tachycardia
• Hypotension
• Peripheral edema• Peripheral edema
• Pulmonary edema
• Bilateral Basal lungs Fine Crepitation
• Diastolic Murmur
•
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Mitral StenosisDiagnosis
• Clinical
- Loud S1 and P2 (pulmonary hypertension)
- Mid diastolic murmur
- Opening Snap indicating pliable leaflets- Opening Snap indicating pliable leaflets
• ECG
- P Mitrale: broad, notched P wave in II and V1
- Right Ventricular Hyperthrophy (RVH)
- Rightward axis deviation
- Significant Pulmonary H.T. 13
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Mitral StenosisInvestigation
• CXR
- Left Atrail enlargement
- increased Lower lobe vascularity
- Kerley B and A lines
- Dilated Pulmoary Artesies
- Mitral Valve calcification
• 2D-ECHO & Doppler Study
• Cardiac catheterization14
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Mitral Stenosis• Asymptomatic
• No specific therapy
• Endocarditis prophylaxis & Rheumatic fever prophylaxis
• Inj Benzathine Penicilline
• Tab Erythromycin
• Mild and Moderate MS
• Can do Normal Physical activity• Can do Normal Physical activity
• Restrict Physical Activity
• No specific therapy
• Endocarditis prophylaxis & Rheumatic fever prophylaxis
• If Atrial Fibrillation
• Restoration of Normal Sinus Rhythm
• Anti-arrhythmic drugs = ?????
• Anticoagulation = ????15
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Moderate to Severe Mitral Stenosis
Medical Therapy
To Relieve Congestion
� Diuretics
� Digoxin
� Dobutamin
� Beta and Calcium Channel� Beta and Calcium Channel
� Vaso-dilator
� Arterial dilator
� Venous dilator
� Both dilator
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Mitral Stenosis Management Principles• Severe MS
- is usually symptomatic
- Percutaneous Ballon Valvuloplasty
- Success of Ballon valvularplasty depends on the valve anatomy
- Complications: severe MR, embolization and cardiac perforation
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Mitral StenosisMitral Stenosis
Surgical Therapy
� Open Commisurotomy – valve repair
� Mitral Valve Replacement
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Aortic Stenosis
• Degenerative / Calcification
• Rheumatic
Etiology
• Co-arctation of Aorta
• Ventricular Septal Defect
• Congenital valvular malformation
• Connective tissue disorders
• Post-inflammatory, metabolic syndromes19
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Aortic StenosisAortic Stenosis
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Aortic Stenosis – pathophysiology
• Increase Preload • Left Ventricular Congestion• Left Ventricular Dilatation• Left Ventricular Hypertrophy• Left Atrial Congestion
• Left Ventricular Failure
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• Left Ventricular Failure• Pulmonary Hypertension• Right Heart Failure
• Decrease After-load• Decrease Cardiac output• Decrease Systolic blood pressure• Decrease peripheral – vital organ circulation• Low Perfusion & Hypoxia to Vital Organ
• Brain , Kidney, Heart
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Aortic Stenosis
Symptoms
� Angina
� Syncope
� Breathlessness
Paroxymal Noctural Dyspnea (PND)� Paroxymal Noctural Dyspnea (PND)
� Coughing
� Peripheral Limb Edema
� Fatigue
� Palpitation
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Aortic Stenosis
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Aortic Stenosis
� Sign :
� Hypotension
� Tachypnia
� Bounding Apex beat
� Pulsus Parvus Et Tardus
� Low Volume Pulse� Low Volume Pulse
� Bounding pulse
� Systolic thrill – Vibration of Peripheral Pulsation
� Crepitation in Respiratory System
� Systolic murmur
� Limb Edema
� Positive Hepato-Jugular Reflex
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Aortic Stenosis• ECG
- Sign of LVH with strain & Left Axis Deviation
- Wide & High amplitude of QRS complex in V3 to V6
•CXR
- Dilated ascending aorta (post-stenotic dilatation)
- Congestion in Lungs Shadow- Congestion in Lungs Shadow
- Widen Left lower heart border.
- (Boot shape heart shadow)
•Echo (primary diagnostic modality)
• Left Ventricular Dilatation & Hyperrtrophy
• Aortic Valve anatomy – Decrease Aortic valvular opening
- Classified - Mild Vs Moderate Vs Severe AS
- Blood flow through Aortic valve decrease
- Increase Left ventricular Pressure25
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Aortic Stenosis• Asymptomatic (Mild AS)
• No specific therapy
• Endocarditis prophylaxis & Rheumatic fever prophylaxis
• Inj Benzathine Penicilline
• Tab Erythromycin
• Mild and Moderate MS
• Can do Normal Physical activity• Can do Normal Physical activity
• Restrict Physical Activity
• No specific therapy
• Endocarditis prophylaxis & Rheumatic fever prophylaxis
• If Atrial Fibrillation
• Restoration of Normal Sinus Rhythm
• Anti-arrhythmic drugs = Aminoderone , Beta Blocker
• Anticoagulation
• Aspirin , Clopidogrel, Warffarin 26
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Moderate to Severe Aortic Stenosis
Medical Therapy
To Relieve Congestion
� Diuretics
� Potassium Sparing - Spironolactone, Aldactone
� Non Potassium Sparing – Furosemide
� Digoxin� Digoxin
� Dobutamin
� ACE Inhibitor – Enalapril , Remipril
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• Interventional Management - Nonsurgical
• Balloon Valvuloplasty
- Only a palliative treatment
- Complication
Aortic Stenosis
- Complication
- Valvular Rupture
- Aortic Regurgitation
- Embolism
-
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Aortic StenosisTreatment of Symptomatic Aortic Stenosis or
Decreased LV Function
• Aortic Valve Replacement• Bioprosthetic vs Mechanical AVR
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Aortic RegurgitationAortic Regurgitation
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Aortic Regurgitation
Etiologies� Abnormalities of the Leaflets
� Rheumatic disease
� Degenerative
� Endocarditis
� Dilation of the Aortic Annulus� Dilation of the Aortic Annulus� Aortic Aneurysm / Dissection
� Inflammatory (Syphyllis, Giant Cell Arteritis.)
� Inheritable (Marfans syndrome, Osteogensis Imperfecta)
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Aortic Regurgitation – pathophysiology
• Increase Pre-Load & After Load• Dilatation of Left Ventricle & Atrium
• Pulmonary Hypertension• Mitral regurgitation
•Wide Pulse Pressure ( Increase Mean Pressure)• Increase Stroke Volume – Increase Systolic BP
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• Increase Stroke Volume – Increase Systolic BP• Increase Regurgitation volume – Low Diastolic BP
• Decrease Diastolic blood pressure• Decrease perfusion pressure in tissue
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Aortic Regurgitation
Symptoms• Asymptomatic
• Breathlessness
• Fatigue
• Palpitation
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Aortic Regurgitation
Sign in Systemic Examination
� Increase Systolic BP� Decrease Diastolic BP� Diastolic Blowing Murmur� Hyperdynamic LV apical impulse� Hyperdynamic LV apical impulse� Bounding Pulses � Diastolic Murmur� “Austin Flint Murmur” � A murmur due to aortic regurgitation,
originating at the mitral valve when blood enters simultaneously from both the aorta and the left atrium
� Creapitation in Lower Zone of Lungs
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Austin Flint Murmur
Due to the vibration of the anterior leaflet of the mitralvalve as it is thrilled by the blood jets from the leftatrium and the aorta.
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Aortic Regurgitation• ECG
- LVH & Left Axis Deviation - Wide & High amplitude of QRS complex in V3 to V6
- Left Atrial Dilatation- p-Mitral = Wide p wave
•CXR- Congestion in Lungs Shadow- Congestion in Lungs Shadow- Widen & Straight Left heart border.
- Cardiomegaly
•Echo (primary diagnostic modality)• Left Ventricular & Atrial Dilatation & Hyperrtrophy• Aortic Valve anatomy – Defect in Aortic valvular closing
- Reverse Blood flow through Aortic valve37
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Aortic Regurgitation Management
Same Like Aortic Stenosis
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If you're not confused, If you're not confused, If you're not confused, If you're not confused, If you're not confused, If you're not confused, If you're not confused, If you're not confused,
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attention.attention.attention.attention.attention.attention.attention.attention.Tom PetersTom PetersTom PetersTom PetersTom PetersTom PetersTom PetersTom Peters
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Mitral Regurgitation
Etiologies
� Alterations of the Leaflets, Commissures, Annulus� Rheumatic disease
� Mitral Valve Prolapse
� Endocarditis� Endocarditis
� Alterations of LV or LA size and Function� Papillary Muscle (Ischemic, MI, Myocarditis, DCM)
� LV Enlargement – Cardiomyopathies -
� LA Enlargement from MS
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Mitral Regurgitation – pathophysiology
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Mitral Regurgitation
Symptoms
� Fatigue and weakness
� Dyspnea and orthopnea
� Symptom of Right sided HF
Sign
� Systolic Murmur
� Laterally displaced apical impulse
� Sign of Right Heart Failure
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