Cardiac - Path Flashcards
What organism most often causes myocarditis?
Shows what on histo?
Coxsackie A and B
Lymphocytic infiltrate in the myocardium
ASD causes what?
Results in what?
What is an important complication?
Left to Right shunt
Split S2 on auscultation
Paradoxical emboli (can go to brain)
What is the most common cause of death in the acute phase of acute rheumatic fever?
Myocarditis
What are the 2 types of aortic dissection and what is their treatment?
A - involves ascending aorta, can cause AR/tamponade
Tx: surgery
B - ONLY descending aorta, below l. Arteriosum
Tx: Beta blockers, vasodilators
What does tetralogy of Fallot cause?
PROVe Pulmonary infundibular stenosis RVH Overriding aorta VSD
The RCA supplies what important structures?
Leads to what?
SA and AV nodes
Bradycardia
MI due to heart block
Most common signs of RHF?
HM (nutmeg liver)
JVD
Peripheral Edema
AS may lead to what?
Concentric hypertrophy
S4 heart sound
Hemolytic anemia
What causes concentric LV hypertrophy?
HTN
How does MR affect afterload?
EF?
Decreases it
Increased but lower forward SV
Day 4-7 post MI involves primarily what cells present?
What is the major complication that may result?
Macrophages
Rupture of ventricular free wall –> cardiac tamponade
Rupture of interventricular septum –> shunt
Rupture of papillary muscle –> mitral insufficiency
What is asymptomatic at birth but causes a holosystolic murmur?
Shows what CF?
PDA
LE cyanosis
What is associated w/Transposition of Great Vessels?
Presents how?
Treat how?
Maternal diabetes
Early cyanosis at birth
PGE to maintain a PDA
Young athlete collapsing and dying due to ventricular arrhythmia is due to what?
Hypertrophic cardiomyopathy
What angina causes ST elevation?
Prinzmetal
What presents w/weak UE pulses, fever, night sweats and increased ESR?
Labs show what?
Tx?
Takayasu arteritis
Thickening and narrowing of aortic arch and prox great vessels
Corticosteroids
What presents as a murmur over the apex that radiates to the left axilla?
MR
3 main CFs of AS?
Syncope
Angina
Dyspnea on exertion
What is Kussmaul sign?
Indicates what?
Inc in JVP on inspiration instead of a normal DEC
Constrictive pericarditis, restrictive cardiomyopathy, RA or ventricular tumor
Hereditary hemorrhagic telangeictasia called what?
CFs?
Osler-Weber-Rendu
Telangeictasias, epistaxis, AVMs, GI bleeding, hematuria, skin discoloration
What angina causes ST depression?
Stable, unstable
What is a b9 hamartoma of cardiac muscle called?
Assoc w/what?
Arises where?
Rhabdomyoma, #1 in children
Tuberous sclerosis
Ventricle
Dilated cardiomyopathy causes what dysfunction?
Leads to what?
Complications?
Systolic dysfx
Biventricular CHF
MR and TR leading to arrhythmia
What causes scarring of the aortic valve and fusion of the commissures?
Chronic rheumatic heart disease
What sites commonly metastasize to the heart?
Causes what?
Breast, lung, melanoma and lymphoma
Pericardial effusion
What is Kussmaul’s sign?
When you breathe in, jugular veins Decrease distention but in RHF JVD increases
What is the most common primary cardiac tumor in adults? Mal or B9?
Forms what, where?
Causes what?
Myxoma, B9
Pedunculated mass in the LA
syncope
Reactive histiocytes w/slender wavy nuclei are what?
Associated with what?
Anitschkow cells
Myocarditis
What provides evidence for a previous group A beta-hemolytic strep infection?
ASO or anti-DNase B titers
Mitral stenosis can result in what 3 major sequellae?
Pulmonary congestion
Pulmonary HTN and eventually RHF
AFib –> inc risk of mural thrombi
AS causes chronically what problems?
Inc pressures in LV and LA dilation hypertrophy
Ventricular apical ballooning due to increased sympathetic stimulation is what?
Takotsubo cardiomyopathy (Broken hearT)
What causes thickening of chordae tendinae and cusps?
With involvement of what valve?
Chronic rheumatic heart disease
Mitral
Kussmaul’s sign is most commonly found in what?
What else?
Chronic constrictive pericarditis
RHF, restrictive cardiomyopathy, tricuspid stenosis
What kind of valve defect leads to a wide pulse pressure?
Called what?
AR
Water-Hammer pulse
What is a blowing, decrescendo diastolic murmur?
Best heard where?
AR
Left sternal border in 3/4th ICS
What are the 3 major complications of AS?
Concentric LVH
Angina andy syncope w/exercise
Microangiopathic hemolytic anemia
What can papillary muscle rupture after a MI cause?
Gets louder when?
MR
Squatting or expiration
MI usually involves what?
What is spared?
LV
RV and both atria
What is the most common type of ASD?
Optimum secundum
What is usually due to rupture of atherosclerotic plaque w/thrombosis and INCOMPLETE occlusion of a coronary artery?
Unstable angina
What is the main feature of hypertrophic cardiomyopathy?
Diastolic dysfx (ventricle cannot fill)
How does acute MR affect LV EDV?
What else does it do?
Increases
Increases preload
What produces an opening snap followed by a diastolic rumble?
MS
What does the AS murmur sound like?
Where?
Harsh crescendo-decrescendo holosystolic murmur
Right sternal border
What is hypertrophic cardiomyopathy?
Usually due to what?
Hypertrophy of LV
Sarcomere proteins (AD)
How does mitral stenosis present as a murmur?
Best heard where?
Mid-diastolic rumbling murmur preceded by opening snap
Apex of left sternal border