Ventricular Septal Defects VSD RA LA (large) AO PA RA R∨ RV PA Ao
Ventricular Septal Defects RA LA RV LV PA Ao
DDDUDDDDDD E Pulmonary blood 上下腔 V Superior/ Inferior overload肺血量多 Vena cava 右 心房RA LA overload左心房血量多 VSD R右心室 LV over load左心室血量 增加 Pa dilation肺动 Ao blood flow 脉扩张 decrease主动脉血 量减少 PA congestion Systemic blood flow 肺循环充血 decreased体循环血 量不足 Pulmonary r shunt hypertensioHemodynamic changes in VSD
上下腔V 右心房 PA dilation肺动 脉扩张 PA congestion 肺循环充血 Ao blood flow decreased主动脉血 量减少 Systemic blood flow decreased 体循环血 量不足 LV over load左心室血量 右心室 增加 VSD Pulmonary hypertension L-R shunt Hemodynamic changes in VSD LA overload 左心房 血量多 Pulmonary blood Superior/Inferior overload肺血量多 Vena Cava RA RV
Hemodynamic changes in VSD 1.L VsD Rshunt pa blood T systemic blood↓ ■2. Volum overload↑LA, LV. RV dilated a 3. Pulmonary hypertension ->Eisenmenger syndrome艾森曼格综合征
1. L Rshunt PA blood systemic blood ◼ 2. Volum overload LA, LV, RV dilated ◼ 3. Pulmonary hypertension →Eisenmenger syndrome 艾森曼格综合征 VSD Hemodynamic changes in VSD
Clinical presentations Depends on size.,PvR(肺静脉阻力), associated lesions Smal-moderate vsd Grade ll-vi harsh pansystolic murmur (PSM 全收缩期杂音) At lower left sternal border Normal P2(pulmonic second sound)
Clinical presentations Depends on size, PVR(肺静脉阻力), associated lesions Small-moderate VSD Grade II-VI harsh pansystolic murmur (PSM 全收缩期杂音) At lower left sternal border Normal P2 (pulmonic second sound)
Clinical presentations Large shut VSD without PH (pulmonary Hyper pe tension肺动脉高压) P, is normal grade lll-vI PSM, congestive heart Failure may present In present of PH P2 is loud, shot systolic ejection(喷射性) murmur left sternal bord, may be cyanotic if reversal of shunt
Clinical presentations Large shut VSD without PH (pulmonary Hypertension肺动脉高压) P2 is normal, grade III-VI PSM, congestive heart Failure may present In present of PH P2 is loud, shot systolic ejection(喷射性) murmur left sternal bord, may be cyanotic if reversal of shunt