Pulmonary Vascular Disease Flashcards
What is a pulmonary embolism?
Thrombus forms in the venous system, usually in deep vains of the legs and embolises to the pulmonary arteries
How many hospital admissions are due to pulmonary embolisms?
1%
What can be the consequences of a massive pulmonary embolism?
Can be fatal
What can minor pulmonary embolisms be treated with and how is the prognosis?
Anticoagulation and have a very good prognosis
Where do pulmonary embolisms usually originate?
Deep vains in the legs

What are major risk factors of venous thromboembolisms?
Recent major trauma
Recent surgery
Cancer
Significant cardiopulmonary disease
Pregnancy
Inherited thrombophilia
What are symptoms of pulmonary embolism?
Pleuritic chest pain, cough and haemoptysis
Isolated acute dyspnoea
Syncope or cardiac arrest
What is haemoptysis?
Coughing up blood
What is coughing up blood known as?
Haemoptysis
What is dyspnoea?
Shortness of breath
What is shortness of breath called?
Dyspnoea
What is a syncope?
Temporary loss of consciousness
What is a temporary loss of consciousness called?
Syncope
What are the signs of a pulmonary embolism?
Pyrexia, pleural rub, stony dullness to percussion at base
Tachycardia, tachypnoea, hypoxia
Tachycardia, hypotension, tachypnoea, hypoxia
What is tachypnoea?
Abnormally rapid breathing
What is abnormally rapid breathing called?
Tachypnoea
What does VTE stand for?
Venous thromboembolism
What is a venous thromboembolism?
Condition in which a blood clot forms most often in the deep veins of the legs, groin or arm
What is used pre-test to determine the probability of a pulmonary embolism?
Well score
Revised Geneva score
What does the well score include?
Includes symptoms and signs of venous thromboembolism, previous venous thromboembolism and risk factors
What does the revised Geneva score include?
Based on risk factors, symptoms and signs
What investigations can be done for pulmonary embolism?
Full blood count, biochemistry, blood gases
Chest X-ray
ECG
D-dimer
CT pulmonary angiogram
V/Q scan
Echocardiography
Consider CT abdomen and mammography
Consider thrombophilia testing
What is an angiogram?
Used to visualise the inside of the lumen or vessels of the body
What is used to visualise the inside of the lumen or vessels of the body?
Angiogram
What does the mortality at 30 days vary between?
0-25%
What is used to determine the mortality of patients with pulmonary embolism?
Pulmonary embolism severity index (PESI) score
What is the pulmonary embolism severity index (PESI) score based on?
Age
Sex
Comorbidity
Physiological parameters
What does the treatment of pulmonary embolism include?
Oxygen
Low molecular weight heparin (such as dalteparin)
Warfarin
Direct oral anticoagulants (DOAC)
Thrombolysis
Pulmonary embolectomy
What is an example of a low molecular weight heparin?
Dalteparin
What are examples of direct oral anticoagulants (DOAC)?
Rivaroxaban
Apixaban
What does DOAC stand up for?
Direct oral anticoagulants
What is an example of a thrombolysis?
Alteplase
What is thrombolysis?
Dissolution of a blood clot
What is the dissolution of a blood clot called?
Thrombolysis
What is pulmonary hypertension?
Elevated blood pressure in the pulmonary arterial tree (>25mmHg)
What is elevated blood pressure in the pulmonary arterial tree called?
Pulmonary hypertension
What pressure is considered pulmonary hypertension?
>25mmHg
How common is pulmonary hypertension?
Rare with an incidence of 1-2 per million population
What happens if pulmonary hypertension is left untreated?
Rapidly progressive condition that leads to premature death
Is primary or secondary pulmonary hypertension more common?
Secondary which tends to occur in older age group
Where does secondary pulmonary hypertension tend to occur?
Older age group
What are some of the causes of pulmonary hypertension?
Idiopathic
Secondary to chronic respiratory disease
Secondary to left heart disease
Chronic thromboembolic pulmonary hypertension
Miscellaneous
What are some miscellaneous causes of pulmonary hypertension?
Collagen vascular disease
Portal hypertension
Congenital heart disease (left to right shunt)
HIV infection
What are symptoms of pulmonary hypertension?
Exertional dyspnoea
Chest tightness
Exertional presyncope or syncope
What is exertional dyspnoea?
Shortness of breath on exertion
What is shortness of breath on exertion called?
Exertional dyspnoea
What are pulmonary hypertension signs?
Elevated jugular venous pressure
Right ventricular heave
Loud pulmonary second heart sound
Hepatomegaly
Ankle oedema
What is hepatomegaly?
Abnormal enlargement of the liver
What is abnormal enlargement of the liver called?
Hepatomegaly
What investigations are done for pulmonary hypertension?
ECG
Lung function tests
Chest X-ray
Echocardiography
V/Q scan
CTPA (CT pulmonary angiography)
Right heart catheterisation
What does right heart catheterisation allow?
Direct measurement of pulmonary artery pressure
Measurement of wedge pressure
Measurement of cardiac output
What is the general treatment for pulmonary hypertension?
Treat underlying condition
Oxygen
Anticoagulants
Diuretics
What are diuretics?
Also called water pills, medication designed to increase the amount of water and salt expelled from the body as urine
What are specific treatments for pulmonary hypertension?
Calcium channel antagonist
Prostacyclin (inhibits platelet activation)
Endothelin receptor agonist
Riociguat
Phosphodiesterase inhibitors
What is an example of a calcium channel antagonist?
Amlodipine
Amlidopine is an example of what?
Calcium channel inhibitor
What does prostacyclin do?
Inhibits platelet formation
What are examples of endothelin receptor antagonist?
Bosentan
Ambrisentan
Bosentan and ambrisentan are examples of what?
Endothelin receptor antagonist
What are examples of phosphodiesterase inhibitors?
Sildenafil
Tedalafil
Sildrenafil and tadalafil are examples of what?
Phosphodiesterase inhibitors
What are some major pulmonary hypertension treatments?
Thromboendarterectomy
Lung or heart lung transplant
What is thromboendarterectomy
Surgical procedure to remove blood clots (thrombus) from the pulmonary arteries
What is the surgical procedure that removes thrombus from the pulmonary arteries called?
Thromboendarterectomy
What is A?

Superior vena cava
What is B?

Inferior vena cava
What is C?

Right atrium
What is D?

Tricuspid valve
What is E?

Pulmonary valve
What is F?

Right ventricle
What is G?

Left ventricle
What is H?

Aortic valve
What is I?

Pulmonary artery
What is J?

Left atrium
What is K?

Mitral valve
What is L?

Pulmonary vein
What is M?

Aorta