Cardiology by Dr. Cintia COPY Flashcards
Pulmonary Embolism Clinical Features
Pleuritic Chest pain: Aggravated by cough and deep inspiration, worse with lying flat, relieved by sitting up.
Shortness Of Breath
Pulmonary Embolism
First Investigations (3)
First: Chest pain-ECG (S1Q3T3) Diagnostic
Second: SOB-CXR—> Rule out pulmonary pathology
Pregnancy (Doppler USD of legs)
Pulmonary Embolism
Best Investigations
Wells Score:
- Low: D dimer
- High: CTPA (Gold standard)
V/Q (Pregnancy or ♀< 45 yo)
Wells Score for PE (7 criteria)
Clinical symptoms of DVT (leg swelling, pain with palpation) 3
Another diagnosis less likely than pulmonary embolism 3
Heart rate >100 1.5
Immobilization (≥3 days) or surgery in the previous four weeks 1.5
Previous DVT/PE 1.5
Hemoptysis 1
Malignancy 1
Wells Score Probability for PE
Wells criteria
High >6.0
Moderate 2.0 to 6.0
Low <2.0
Modified Wells criteria
PE likely >4.0
PE unlikely ≤4.0
PERC rule (8 criteria)
for pulmonary embolism
in low risk pat
Aged <50 years
Pulse <100 beats per minute
SaO2 ≥95%
No haemoptysis
No oestrogen use
No surgery or trauma requiring hospitalisation within four weeks
No prior venous thromboembolism
No unilateral leg swelling
RESULT: IF ALL YES no PE
Pulmonary Embolism
Management
ABCD/Oxygen/Morphine
Stable:
- LMWH.
- Renal disease –> Unfractionated
Unstable: Thrombolysis
Acute Pulmonary Oedema (APO) Clinical Features
Sudden-onset of SOB with tachypnea
Diaphoresis and cyanosis
Productive cough: pink or white frothy sputum
Crackles and Wheezes (Kettle boiling)
- Hypotension: Cardiogenic shock
Acute Pulmonary Oedema (APO) Most common causes
- Acute Mitral and Aortic Regurgitation
- LV Systolic Dysfunction: anterolateral MI
- AF with rapid ventricular response
Acute Pulmonary Oedema (APO) Initial investigation
- CXR
- ECG
- Troponin
- FBE
- TTE
Acute Pulmonary Oedema (APO) Best investigation
Arterial/Venous Blood Gases to assess the severity of hypoxemia.
Acute Pulmonary Oedema (APO) Treatment
- O2
- IV line
- NGT spray or SL / IV is preferred to Morphine (BP > 100)
- Furosemide IV
- Morphine IV (chest pain)
- CPAP
APO + AF = BB
APO + AF + CHF = Digoxin inf
Infective Endocarditis Clinical Features
Fever (Most common)
New murmur (AI-most common)
NOT A CRITERIA FOR DIAGNOSE
Osler’s nodes (toes/fingers)
Petechiae including “nail bed
splinter hemorrhages”
Mitral and Aortic valves most frequently affected
Janeway lesions: Irregular painless erythematous macules on palms, soles, thenar and hypothenar eminence —> S. aureus!!!
Order of most common microorganisms that cause infective endocarditis
- Staphiloccocus Aureus
- Streptococci
- Enterococci (at least 90% faecalis)
Infective Endocarditis RISK FACTORS
Artificial heart valves.
Congenital heart defects.
A history of endocarditis.
Damaged heart valves: rheumatic fever
History of intravenous (IV) illegal drug use.
Immunocompromised patient.
Infective Endocarditis Diagnose
Modify Duke’s criteria:
DEFINITIVE Infectious Endocarditis:
2 Major Criteria
OR
1 Major + 3 Minor Criteria
OR
5 Minor Criteria
POSSIBLE Infectious Endocarditis:
1 Major Criteria + 1 Minor criteria
3 Minor Criteria
In POSSIBLE Management: Repeat TTE + TOE
Modify Duke’s Major criteria
TWO MAJOR CRITERIA
- Positive blood cultures for infective endocarditis:
Typical microorganisms for infective endocarditis: Coxiella burnetii, Viridans streptococci, Streptococcus bovis, and HACEK group
OR
Community-acquired Staphylococcus aureus or enterococci in the absence of a primary focus.
NOTE: 2 blood cultures drawn 12 hours apart or all of 3 or most of 4 or more separate blood cultures, with the first and last drawn at least one hour apart
OR
- Evidence of endocardial involvement:
Positive echocardiogram for infective endocarditis
OR
Cardiac Vegetation
OR
Cardiac Abscess
OR
New partial dehiscence of prosthetic valve
OR
New valvular regurgitation
Modify Duke’s Minor criteria
FIVE MINOR CRITERIA
- Predisposing heart condition or intravenous drug user
- Fever: 38°C
- Vascular phenomena: major arterial emboli, septic pulmonary infarcts, mycotic aneurysm, intracranial hemorrhage, conjunctival hemorrhages, and Janeway lesions
- Immunologic phenomena:
Glomerulonephritis
Osler nodes
Roth spots
Rheumatoid factor (+) - Microbiologic evidence: positive blood culture but not meeting major criterion as noted previously or
echocardiography findings consistent with infective endocarditis but not meeting major criteria as noted previously
Infective Endocarditis Initial Investigations
- Blood culture: Diagnostic
- FBE: leucocytosis with neutrophilia and anemia.
- ECG: Cardiac monitoring
- CXR: Signs suggestive of heart failure.
NOTE: 2 blood cultures drawn 12 hours apart or all of 3 or most of 4 or more separate blood cultures, with the first and last drawn at least one hour apart
Infective Endocarditis Best Investigations
- Transesophageal echo (TOE)
BUT:
- If HACEK: CT angio
- If arrhythmias: ECG
- If spread: CT/MRI (brain, thorax, and abdomen)
HACEK group
Slow-growing, fastidious gram-negative organisms
- Haemophilus species: Aggregatibacter aphrophilus, H. Paraphrophilus.
- Aggregatibacter actinomycetemcomitans
- Cardiobacterium hominins
- Eikenella corrodens
- Kingella kingae
COMPLICATED Infective Endocarditis include
Large vegetation
Perivalvular abscess
Multiple emboli
Secondary septic events
Infective Endocarditis Empirical Treatment
Benzylpenicillin + Gentamicin + Flucloxacillin IV
Infective Endocarditis Staphylococcus Aureus Treatment
Methicillin-susceptible:
Flucloxacillin x 6 weeks
Methicillin-resistant (MRSA):
Vancomycin IV x 6 weeks
ATB treatment is usually at least 2 weeks IV and oral until completing 4-6 weeks