Caridology Flashcards
(113 cards)
Classic EKG findings for pericarditis
Diffuse ST elevation in most of the precordial leads, with PR depression in the same lead
Buzz word: mid-systolic click
Mitral valve prolapse
Harsh crescendo-decrescendo murmur that radiates to the carotids; heard best with patient leaning forward
Aortic Stenosis
Classic EKG finding in ischemic heart disease
ST depression
*normal resting EKG in 50%
Formation of an atherosclerotic plaque
1) fat streak formation from lipid deposition in white blood cell as
2) LDL+macrophages form foam cells
3) fibrous cap formation
MOA of nitroglycerin
1) decrease coronary vasospasm
2) decrease preload by vasodilation
- take sublingual q5 minutes up to 3 doses
- remember you need at least an 8 hr nitrate free period to prevent tachyphylaxis
Contraindications to Nitroglycerin
1) SBP<90
2) RV INFARCT
3) PDE-5 inhibitors
Classic outpatient regimens for chronic angina lector is
Aspirin, BB, statin, prn nitroglycerin
Coronary artery occlusion percentage that typically becomes symptomatic with exertion (stable angina)
70%
Coronary artery occlusion percentage that typically becomes symptomatic at rest (unstable angina)
90%
Sings of an inferior wall MI
Chest pain with bradycardia, possible S4
Dressler Syndrome
Post MI pericarditis+ fever+ pulmonary infiltrates
What is a normal ejection fraction?
55-60%
MC type of cardiomyopathy
Dilated Cardiomyopathy
Cause of dilated cardiomyopathy, including MC
- Viral myocarditis (MC) enterovirus such as Coxsackie B MC, then PB19, Chagas dz
- alcohol abuse
- idiopathic (50%)
- pregnancy
At what ejection fraction is an implantable defibrillator recommended due to the increased risk of arrhythmias?
<30-35%
Takotsubo Cardiomyopathy
Apical left ventricular ballooning following an event that causes a catecholamine surge
*”broken heart syndrome”
Kussmal’s sign
JVP increased with inspiration
*seen in restrictive cardiomyopathy
Echo finding a for restrictive cardiomyopathy
1) nondialated ventricles with normal wall tho knees (they are ridged, not hypertrophied )
2) marked dilation of both atria
3) diastolic dysfunction
Hypertrophic cardiomyopathy pathophysiology
1) diastolic dysfunction: impaired filling
2) sub aortic outflow obstruction: hypertrophied septum
3) systolic anterior motion of the mitral valve
Hypertensive urgency management
Decrease MAP by 25% over 24-48 hours using ORAL agents
- clonidine: central alpha agonist (rebound HTN If abruptly stopped)
- captopril: ACEI
What makes a split S2 physiologic?
It occurs with inspiration
In what conditions will we see a fixed, split S2?
Pulm. HTN
Mitral regurgitation
ASD
VSD
*a paradoxical split s2 May be seen in severe aortic stenosis
What does the S3 sound represent?
Passive atrial filling