cardiovascular pathology Flashcards
descriptions of chest pain
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what is heart failure
when the heart can’t pump enough blood to fill the bodies needs
where does blood pool in right heart failure
the systemic circulation
what are the problems associated with right heart failure
hepatomegaly
splenomegaly
ascites
peripheral edema
where does blood pool in left heart failure
the lungs
what are the problems associated with left heart failure
dyspnea orthopnea enlarged heart increased heart rate rales (bubbling breathing) mitral regurgitation, systolic murmur
what are the common causes of right heart failure
left heart failure (most common)
cor pulmonale
conginital disease
what are the common cause of left heart failure
systemic hypertension
mitral or aortic valve disease
primary heart disease
what are the changes to the heart that occur in left heart failure
LV hypertrophy and dilation, LA may be enlarged
what are the changes to the heart that occur in right heart failure
RV hypertrophy and dilation, RA may be enlarged
what are the three left to right congenital heart diseases
atrial septal defect
ventricular septal defect
patent ductus arteriosus
what are the two right to left congenital heart diseases
tetralogy of fallot
transposition of great arteries
what are the four problems in tetralogy of fallot
overriding aorta
VSD
pulmonary stenosis
RV hypertrophy
what is the problem in transposition of great arteries
the aorta hooks the the Right ventricle, the pulmonary trunk hooks to the left ventricle. two separate and closed circulatory systems
what is aortic coarctation
narrowing of the aorta
what is ischemic heart disease
lack of blood flow/oxygen to the heart
what are the 4 syndromes of ischemic heart disease
angina pectoris
acute MI
chronic IHD
sudden cardiac death
what is angina pectoris
chest pain
what are the three types of angina pectoris
stable
prinzmetal (variant)
unstable (pre-infarction)
what are the characteristics of stable angina pectoris
most common
pain on exertion
fixed narrowing CA
what are the characteristics of prinzmetal (variant) angina pectoris
pain at rest
CA spasm
what are the characteristics of unstable (preinfarction) angina pectoris
unpredictable pain
plaque distribution and thrombosis
what is an acute MI
necrosis of myocardium from ischemia
what are the clinical features of acute MI
severe, crushing chest pain
not relieved by nitroglycerin
sweating and nausea
what are the two types of acute MI
subendocardial infarction (inner wall death) transmural infarction (more than half of the wall is dead)
what is chronic IHD
accumulation of small ischemic events leads to mechanical failure
what is sudden cardiac death
often a result of lethal arrthymia without myocyte necrosis
what are the 5 types of heart valve disorders
stenosis (failure to open) insufficiency/regurgitation (failure to close) rheumatic valvular disorder mitral valve prolapse syndrome infective endocarditis
what is rheumatic valvular disease
you get rheumatic fever from group a beta-hemolytic strep, the antibodies against it can later attack the heart valves and cause mitral stenosis
what is mitral valve prolapse
when the mitral valve goes backwords into the left atrium
what is infective endocarditis
when microbes invade the heart valves and endocarditis
what are the three types of cardiomyopathies
dilated
hypertrophic
restrictive
what is a dilated cardiomyopathy
when your heart chambers are dilated
what is a hypertrophic cardiomyopathy
when your heart walls are too thick that your ventricles wont fill all the way
what is a restrictive cardiomyopathy
deposition of material into the heart wall causing it to be stiff so it cant fill (amyloidosis)
what are the two disorders of the pericardium
acute pericarditis
pericardial effusion
what does acute pericarditis cause
severe chest pain when breathing and lying down
it can lead to tamponade and chronic fibrosis
what is tamponade
physical pressure of the pericarditis that compresses the heart
what is pericardial effusion
when fluid fills the pericardium (causes tamponade)
how common are primary heart tumors
very uncommon (usually benign) (they usually metastisize from the lungs of lymphoma)