Cardiology Flashcards
Heard best on the BASE or at the 2nd ICS
Blood flows through a stenotic structure – BLOWING sound
Systolic ejection or Blowing murmur
Heard best on the APEX or at the LEFT LOWER STERNAL BORDER
Blood backflows from the one chamber/valve to another because of incompetent structures
Systolic regurgitant murmur
ACYANOTIC HEART DISEASE (left to right shunt
VSD ASD PDA COA ECD
CYANOTIC HEART DISEASE (right to left shunt
DECREASED PULMONARY BLOOD FLOW Pulmonary Atresia Pulmonary Stenosis TOF Tricuspid Atresia Ebstein Anomaly
INCREASED PULMONARY BLOOD FLOW
Transposition of the Great Arteries (TGA)
Total Anomalous Pulmonary Venous Return (TAPVR)
Truncus Arteriosus
Systolic ejection murmur at 2nd LICS
widely split S2
enlargement of the R sided chambers of the heart - RA, RV and PA
ATRIAL SEPTAL DEFECT
MC form of ASD
Ostium Secundum Defect
Systolic regurgitant murmur at LLSB
Loud and single S2
enlargement of the LA, LV and main PA
VENTRICULAR SEPTAL DEFECT
MC form of VSD
Membranous
Surgical intervention in ASD in NOT need if the point of defect is
< 3 mm
Blood shunts left to right through the ductus arteriosus d.t. higher aortic pressure
enlarged LA, LV, main PA, aorta
continuous “machinery like” murmur at the 2nd left infraclavicular area
PATENT DUCTUS ARTERIOSUS
Atrioventricular Septal Defect (Endocardial Cushion Defect)
Ventricular Septal Defect
Trisomy 21 (Down Syndrome)
Aortic Root Dilation
MVP
Marfan Syndrome
Pulmonic stenosis
LVH
Noonan syndrome
Cyanosis manifesting within few hrs at birth or w/n few hrs of life
Transposition of Great Arteries (TGA)
Cyanosis manifesting after the 1st year of life usually in INFANT or TODDLER
Tetralogy of Fallot (TOF)
MC cyanotic heart defect BEYOND infancy
Systolic ejection murmur at 2nd LUSB
Loud and single S2
Tetralogy of Fallot
couer en sabot or boot shaped heart
Blalock-Taussig procedure
4 components of TOF
obstruction if RV outflow tract (Pulmonic stenosis)
VSD
overriding aorta
right ventricular hypertrophy
What is the main pathophysiologic mechanism behind the hypercyanotic or Tet spells in TOF
d.t. decreased pulmonary blood flow
Atretic (missing) tricuspid valve Hypoplastic R ventricle VSD ASD Pulmonary stenosis
Systolic regurgitant murmur at LLSB
Tricuspid Atresia
Glenn shunt
Fontan Procedure
Aorta arises from the RV
PA arises posteriorly from the LV
complete separation of pulmonary and systemic circulation – hypoxemic blood circulating throughout the body and hyperoxemic blood circulating in pulmonary circuit
Defects the permit mixing of 2 circulations – ASD, VSD, PDA – needed for survival
Transposition of the Great Vessels
MCC of cyanotic CHD in NEWBORN
single and loud S2
no murmur if with intact ventricular septum
Transposition of the Great Vessels
Egg shaped
Egg on string
Rashkind, Senning, Mustard or Jatene Procedure
PA arises from aorta
Truncus arteriosus fails to divide into pulmonary trunk and aorta d.t. failure of aorticopulmonary septum formation
VSD is always present
single S2
systolic ejection
murmur at LSB
minimal cyanosis in neonates
Truncus Arteriosus
Rastelli procedure
All 4 pulmonary veins drain to RA
RV volume overload
Total mixing of systemic venous and pulmonary venous blood flow within the heart
Systolic murmur at LSB in mild cases
Total Anomalous Pulmonary Venous Return (TAPVR)
Snowman sign or Figure of 8 sign
Van Praagh Procedure