L2: Valvular Heart Diseases - MR Flashcards
Def of MR
Means Inadequate competent closure of MV leaflets passage of blood from
- LV to LA during ventrcular systole
Proper Closutre of MV Requires …..
Pathophysiology of MR
Etiology of MR
Etiology of MR
- Acute
- Infective endocarditis
- Acute myocardial infarction
- Trauma
Etiology of MR
- Chronic
- Chronic rheumatic heart disease
- Mitral valve prolapse
- Left ventricular dilatation
- Hypertrophic cardiomyopathy
- Degeneration of valves cusps
Etiology of MR
- Mitral Valve Ring
Etiology of MR
- Mitral Leaflets
Etiology of MR
- Chorda Tendineae
Etiology of MR
- Papillary Muscle Dysfunction
Cardinal Symptom of Acute MR
- Acute MR presents a sudden volume overload to left atrium and left ventricle, the steep rise in pulmonary venous pressure often resulting in pulmonary oedema
CP of MR
CP of MR
- Acute
CP of MR
- Chronic
CP of MR
- Symptoms
Symptoms of MR
- Chronic
Symptoms of MR
- Acute
Present with Acute severe dysphoea or frank pulmonary oedema
Signs of MR
Signs of MR
- General
No characteristic abnormalities
- “BBC & Weak pulse”
Signs of MR
- Precordial Ex
- Signs of LV hypertrophy in moderate and sever cases
- Systolic thrill over the apex
- Hyperdynamic Apex
Signs of MR
- Auscultation
Signs of MR
- S1
Weak or muffled
Signs of MR
- S3
Signs of MR
- Murmur
Complications of MR
INVx for MR
INVx for MR
- ECG
LAE & LVE
INVx for MR
- Plain X-Ray
- LAE & LVE
- PVC
INVx for MR
- ECHO
INVx for MR
- Cardiac Cathetrization
….
TTT of MR
TTT of MR
- Acute MR
TTT of MR
- Chronic MR
TTT of Chronic MR
TTT of Chronic MR
- Medical
TTT of Chronic MR
- Surgical
Surgical TTT of Chronic MR
- Indication
Surgery is indicated for severe MR producing:
- Progressive symptoms refractory to medial treatment.
- Progressive cardiomegaly.
- Declining LV function
Surgical TTT of Chronic MR
- Consists of