Card Set Information
Drugs that affect conduction velocity
Truncas Arteriosus (T)
Aorta, Pulmonary Trunk
Bulbus cordis (B)
Smooth parts of R and L Ventricles
Primitive Ventricle (PV)
Trabeculated part of R and L ventricles
Primitive atrium (PA)
Trabeculated part of R and L atrium
Sinus venosus (SV)
Smooth part of R atrium, coronary sinus
What muscles are in the R atrium?
What muscles are in the R ventricle?
Trabeculae carnae, papillary muscles, moderator band,
What are the 4 events that occur during Week 4-5 for the heart?
Atrial and Ventricular Septation
Remodeling of the Outflow tracts
Endocardial cushions AV canals
Tetralogy of Fallot
Ventricular septal defect
Umbilical vein to Inferior vena cava
From R to L atrium
From pulmonary trunk to aorta
What are the remnants of ductus venosus?
What are the remnants of foramen ovale?
What are the remnants of ductus arteriosus?
Where do blood islands lie in and when do they develop?
Cardiogenic field and Week 3
Which viral infection is known to cause CHD's and which ones?
VSD, PDA, Tetralogy of Fallot
What are the clinical features of R --> L shunt?
Long term cyanosis
Clubbing of the fingers
What is the most feared complication of the right ventricular hypertrophy?
Late Cyanotic CHD
Significant irreversible pulmonary HTN develops, structural defects of the CHD are considered irreversible
What is common to children w/ diabetic moms?
Transposition of the Great Vessels
What is Pericarditis always associated with pathologically?
For viral infections? For bacterial infections?
Exudation of fluid into the pericardial sac
Clear yellow in serous pericarditis for viral infections
Purulent exudate for bacterial infections caused by pus forming staph or strep
What is serofibrinous exudate associated with?
Severe damage (like Rheumatic Fever or in early bacterial infections)
What most likely causes Myocarditis?
Virus - Coxsackie B virus
What also comes to the Myocardium after the virus takes over and what does it secrete?
Secretes lymphokines (Interleukins and TNF)
Coxsackie B Virus
T-Lymphocytes - Lymphokines
Pale and congested areas
Flabby and dilated heart
Endomyocardial Biopsy (Punch Biopsy)
No specific tx
What causes ABE? SBE?
ABE --> Staph a.
SBE --> Strep m., Strep viridans
Acute Bacterial Endocarditis
Highly destructive infection of the valves
Previously normal heart valve
High virulent organisms
Staph A or Gr-
What is the foremost factor predisposing to the development of Infective Endocarditis?
Seeding of the blood from microbes due to infection elsewhere