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VALVULAR HEART DISEASE Shen Jieyan MD SSMU Department of cardiology Rheumatic Fever Definition: autoimmune disease caused by streptococcal infection, cross-react between streptococcal antigens and structural glycoprotein of heart, joints, central nerves system and connective tissue. Pathology: exuduation, proliferation (Aschoff nodes), scarring Rheumatic Fever Clinical Manifestations: fever, rheumatic carditis, arthritis, chorea, deformity of skin Laboratory finding: ASO>500U, ASK>80U, ESR↑,Alb↓,γ+a2↑ CRP(+), CPK-MB↑, GOT↑,TnT TnI↑, C3↑, IgA↑ Rheumatic Fever Diagnosis: Jones standards, 1992 AHA Treatment: 1) rest 2) antibiotics :Penicillin 3) anti- inflammation: Aspirin Corticosteroids 4) others Prevention Mitral Stenosis Etiology: predominant cause: rheumatic fever rare cause Pathology: thickening, shortening, adhering, calcium depositing, and scarring four forms of fusion: (1) commissural, (2) cuspal, (3)chordal, (4)combined two types of shape: fish-mouth shaped, funnelshaped Mitral Stenosis Pathophysiology: normal cross-sectional area:4-6 cm2 mild MS: <2 cm2, LAP↑→LAH ---compensated period moderate MS: <1.5 cm2, PVP↑, PCWP↑, →interstitial edema severe MS: <1.0 cm2,PAP↑→RVoverload →RV failure →TR →PR Mitral Stenosis Clinical Manifestations (MVA<1.5cm2) 1. Symptom: dyspnea, hemoptysis, cough, hoarseness (ortner’s syndrome) 2. Signs: -Mitral faces -Diastolic thrill at apex -S1↑(flexible), OS, Diastolic rumbling murmur at apex, -P2↑, splitting, Graham-Steel murmur(PR),TR Mitral Stenosis Laboratory Examination - ECG: 1) left atrial enlargement: P wave (II,V1) 2) Af; 3) right ventricular hypertrophy - X-film: change in cardiac silhouette, Kerley B lines - Echocardiography: M-mode, Twodimensional, Doppler 正常二尖瓣形态 风湿性二尖瓣狭窄 Rheumatic mitral stenosis 风湿性二尖瓣狭窄 Rheumatic mitral stenosis 风湿性二尖瓣狭窄 Rheumatic mitral stenosis 风湿性二尖瓣狭窄 Rheumatic mitral stenosis 风湿性二尖瓣狭窄 Rheumatic mitral stenosis Mitral Stenosis Diagnosis & Differential diagnosis - Diastolic rumbling murmur at apex + X-film + ECG + Echo - relative MS; Austin-Flint murmur; left atrial myxoma ; Graham steell murmur Complication: Atrial fibrillation; acute pulmonary edema; congestive heart failure; thromboembolism; infective endocarditis; pulmonary infective Mitral Stenosis Management: - Medical treatment: Antibiotics, Diuretics and Digitalis, Antiarrhythmic drugs, Anticoagulant - Percutaneous balloon mitral valvuloplasty ( PBMV) - Surgical treatment: Closed mitral valvotomy Open valvotomy Mitral valve replacement Mitral Regurgitation Etiology and Pathology - Abnormalities of valve leaflets: Rheumatic, infective - Abnormalities of the mitral annulus: dilatation, calcification - Abnormalities of the chordae tendineae: congenitally, infective, trauma, Rheumatic - Involvement of papillary muscle: CAD Mitral Regurgitation Pathophysiology In systolic period, blood flow from LV → LA, LA filling pressure↑; in diastolic period, LV accepts more blood →LV dilation, hypertrophy →LVEDP↑ →LAP↑→PCWP↑→PAP↑→RHF; CO↓ Chronic Acute Mitral Regurgitation Clinical Manifestations (1) Symptoms: asymptomatic( gradually,>20 years), palpitation, fatigue, dyspnea, pulmonary edema (2) Signs: - apical pulse→left,lower - apical beat heavy - cardiac dullness enlarged→left - pansystolic murmur at apex, radiate to left axilla, subscapular - S1↓,P2↑ Mitral Regurgitation Laboratory Examination: - ECG: LA enlargement, Af, LV hypertrophy - X- Film: chronic– cardiomegaly (LV, LA) acute– interstitial edema (Kerley B) - Echocardiography: two-dimensional, Doppler , color flow mapping - Angiocardiography & Magnetic resonance imaging 二尖瓣脱垂伴关闭不全 二尖瓣关闭不全 Mitral Regurgitation Diagnosis: systolic murmur at apex + LA↑, LV↑+ Echo Differential Diagnosis: relative MR, ventricular septal defect, tricuspid regurgitation, aortic stenosis Management: - Medical treatment - Surgical treatment Aortic Stenosis Etiology & Pathology: - Rheumatic AS, Congenital AS, Degenerative calcific AS Pathophysiology: - Obstruction to LVOT→ LVH→ LAH→ PVP↑→ Pulmonary edema; - LVEF↓→ischemia of peripheral、brain、heart Aortic Stenosis Clinical Manifestations: - Symptoms: heart failure (fatigue, dyspnea), angina pectoris, syncope, sudden death - Signs: Apical impulse↑,to left Systolic thrill in AV area,pulse↓ Cardiac dullness→left Ejection sound & SM in AV area, radiate to neck A2↓ splitting paradoxically Aortic Stenosis Laboratory Examination: ECG; X- film; Echocardiography; Angiography Diagnosis & Differential Diagnosis: - murmur + Echo - MI, TI, VSD - other murmurs of LVOT obstruction 风湿性主动脉瓣狭窄伴返流 Rheumatic aortic stenosis and regurgitation 风湿性主动脉瓣狭窄伴返流 Rheumatic aortic stenosis and regurgitation 风湿性主动脉瓣狭窄伴返流 Rheumatic aortic stenosis and regurgitation 风湿性主动脉瓣狭窄伴返流 Rheumatic aortic stenosis and regurgitation Aortic Stenosis Complications: Sudden death, heart failure, arrhythmia, infective endocarditis, systemic embolism Management: - Medical treatment - Surgical treatment Aortic Regurgitation Etiology & Pathology - Valvular Disease: rheumatic, congenital, infective prolapse, ankylosing spondylitis, degenerative - Aortic Root Disease: syphilitic aoritis, Marfan syndrome, ankylosing spondylitis, degenerative - Acute AR: infective, trauma, aortic dissection Aortic Regurgitation Pathophysiology: - LV receives both blood from LA & AO →volume overload →LV dilation → pulmonary edema →relative MI,MS; - Diastolic pressure↓,pulse pressure↑ Aortic Regurgitation Clinical Manifestations: - Symptom: palpitation, angina - Sign: apical impulse→ left, inferior cardiac dullness →left, inferior Boot-shaped shadow—cardiac waist↓ DM in AV2 area →apex S1↓,A2↓ relative MI—SM at apex relative MS—Austin Flint Aortic Regurgitation Sign: Peripheral vascular sign: - pulse pressure↑, carotid pulsation↑ - Musset sign, water hammer pulse, Traube sign, Duroziez murmur, Muller sign, Quincke sign, Laboratory Examination: ECG, X-Film, Echo, etc Aortic Regurgitation Diagnosis & Differential Diagnosis: AI + peripheral vascular signs + Echo Complication: infective endocarditis ventricular arrthymia heart failure Aortic Regurgitation Management: Medical treatment Surgical treatment