Pulmonary HTN - Slocum Flashcards
1
Q
Defined as pulmonary artery pressure greater than_ or _ during exercise.
A
25 or 35 during exercise. Normal is 10-14mmHg
2
Q
What are primary causes?
A
Genetic mutaiton which predispose to abnormal vasculature
3
Q
Secondary causes
A
- endothelial cell dysfunction
- COPD
- SLE
- Lā>R shunts
- Sleep apnea obesity hypoventilation syndrome
Recurrent thromboemboli
-Mitral stenosis - Atherosclerosis
4
Q
Signs and symptoms
A
Dyspnea
angina
Loud P2 on asucultation
RV heave
5
Q
Imaging findings
A
CXR: narrowing of pulm arteries; b/l hilar enlargement
ECHO: RVH, elevated estimated PA pressure
Right heart cath: confirms PA pressure and assess pts response to acute vasodilator challenge for treatment stratification
