Cardiology Flashcards
(219 cards)
What does meant by low Pretest probability of CAD?
Low (<10%)
Asymptomatic people of all ages
Atypical chest pain in women age <50
What does meant by Intermediate Pretest probability of CAD?
Intermediate
(20%-80%)
Atypical angina in men of all ages
Atypical Angina in women age >50
Typical angina in women age 30-50
What does meant by high Pretest probability of CAD?
High
(>90%)
Typical angina in men age >40
Typical angina in women age >60
Important point of Aspirin
Aspirin is given before heparin in ACA as it reduces the rate of MI, stroke and overall mortality in ACS
How to approach chest Pain In Emergency dept?
Take history & do Examination
Check stability—> if unstable then stabilise hemodynamics and find the cause
If stable then do ECG/CXR
If ECG consistent with ACS then give anticoagulants if NSTEMI /// if STEMI then t/m with ER CATH & thrombolysis
If ECG normal—> do CXR—> if diagnostic then t/m the cause Or if non-dx then check underlying other cause of chest pain / check cardiac markers
What medication to hold prior to cardiac stress testing?
BB / CCB / Nitrates = hold for 48 hours
Dipyridamole = Hold for 48 hours prior to vasodilator stress test
Caffeine containing food Or Drinks = hold for 12 hours prior to vasodilator stress test
What medication can be continued before doing cardiac stress testing?
AIDS
A = ARBs/ACEI ID = Digoxin / diuretics S = statins
How chest wall/ musculoskeletal chest pain presents?
Persistent and prolong pain with palpation
Worse with movement Or change in position
Often follows repetitive activity
How pulmonary/pleuritic (pleurisy, pneumonia, pericarditis, PE) chest pain present?
Sharp/stabbing pain
Worse with inspiration
Pericarditis:: Worse when lying flat
PE / Pneuomthorax:: Respiratory distress / hypoxia
How GIT/Esophageal chest pain present?
Non exertional prolong chest pain lasting>1 hour
Nocturnal pain
Postprandial symptoms
What is the first line agent for stable chronic angina?
Beta blocker
But CCB can be combine with BB of angina persist Or as alternate therapy
When to used short acting form and long acting form of nitrates in stable chronic angina?
Short acting form is used in the acute setting
Long acting form is an add on therapy for persistent angina
How variant angina different from ACS on the basis of ECG?
In variant angina, Transient ST elevation and then return to baseline
Whereas ST depression in unstable angina and longer duration of ST elevation in MI.
Which vessels and what are the ECG findings of Right ventricle MI?
RCA
ST elevation in leads V4-V6R
***Right ventricle MI occurs in 50% of inferior MI
Important point of Inferior wall MI
Transient bradycardia Or AC block occurs due to enhanced cabal time so give IV fluid unless pulmonary congestion
Important point of RVMI
RV MI (Heat failure) leads to decrease preload and resultant hypotension
So avoid all those medications which decreases preload viz nitroglycerin / Diuretics / Opioids)
Also be cautious when using BB and CCB
Which artery and what are the findings of Posterior MI?
LCX or RCA
ST depression in leads V1-V3
ST elevation in leads I & aVL (LCX)
ST depression in leads I & aVL (RCA)
Which artery and what are the ECG findings of lateral wall MI?
LCX diagonal
ST elevation in leads I, aVL, V5 & V6
ST depression in leads II, III & aVF
Important point
Occlusion of LAD can cause 2nd degrees AV block as it perfumed anterior 2/3rd of septum
What is the MC arrhythmia will be seen in setting of acute MI?
Ventricular fibrillation
What is the mechanism of arrhythmias within 10 mins of coronary occlusion?
Arrhythmia occurring within 10 mins of coronary occlusion—immediate or phase 1a ventricular arrhythmia
MOA:: reentrant arrhythmia
What is the mechanism of arrhythmias within 10-60 mins after acute infarction?
Arrhythmia occurring within 10-60 min after acute infarction—delayed or phase 1b arrhythmia—
MOA: abnormal automaticity
How ventricular aneurysm different from MI on ECG?
Ventricular aneurysm has persistent ST elevation after recent MI and deep Q waves in same leads
Whereas ST elevation resolve within a few weeks of an MI
What are CXR and Echo findings of ventricular aneurysm?
CXR = Prominence Or Bulge among left heart border
ECHO = showing dyskinetic wall motion of a portion of left ventricle