Murmurs Flashcards
Signs of pul htn
Left parasternal heave (Rv hyper trophy)
Loud +/- palpable pulmonary second heart sound
Graham steel murmur of pulmonary regurgitation (one cause of mitral stenonsis)
Functional tricuspid regu
Heart failure types and causes
Systolic hf - abnormality in contractile capacity leading to deficient expulsion of blood
(More common and result in hypotensionh
Diastolic - inability of ventricle to relax and fill normally
(Results in congestion)
Causes of hf
Rmb as hearts
Hypertension
Epi(peri) Cardial disease (eg. Constructive pericarditis, pericardial effusion)
Ami, afib
Regurgitate and steno tic valvular disease
Restrictive, hypertrophic and dilated cardiomyopathy
Thyrotoxicosis and anaemia
Shunts like asd and vsd
Cause of diastolic hf
Pressure overload with ventricular hyper trophy
- hypotension, aortic stenosis
Cardiomyopathy
- hypertrophic obstructive carisomyopathy
Restrictive cardiomyopathy
Mitral stenosis features
Loud s1 +/- open snap
Mid diastolic murmur +/- presystolic accentuaiton (absent in af)
+/- irregular irregular pulse (af), raised jvp (rhf), if afib a wave is absent, loud p2, pedal Odema
Features of severe mitral stenosis
Longer mid diastolic murmur
Shorter interval between s2 and open snap
Pulmonary htn
Rhf
Complications and causes of mitrals stenosis
Complications
- pulmonary htn, af (stroke?, cardiac failure (right), endocarditis (infective)
Cause - child rheumatic fever (99%) Congenital - parachute valve Calcification degeneration Connective tissue disease (ra, sle) Carcinoid syndrome (bronchial)
Investigations and mx of mitral stenosis
ecg - left atrial englargement (biphasic p wave in lead v1), afib
Chest X-ray
- left atrial enlargement (double shadow in right cardiac silhouette, straighten of left cardiac border)
- pulmonary congestion
Mitral valve calcification
Mx
- asym : antibiotic prophylaxis before invasive procedure (amoxycillin 2g one hour before or clindamycin 600mg/ azithromycin 500mg or clarithromycin 500 mg)
Sym: diuretic if mild, severe balloon balloting or surgery (replace or repair)
What is pulmonary htn
When systolic and mean pressure in pylon art arteries excess 30 and 20 mmhg