RHD And VHD Flashcards
What is acute rheumatic fever?
It’s an autoimmune inflammatory response that develops due to a streptococcal infection , likely due molecular mimicry
Infection involves carditis , skin and joints
May lead to rheumatic heart disease
What is the treatment of rheumatic fever with carditis?
Long acting penicillin G for 10 years (injection) , unless there is a oenicillin allergy
What are the complications RHD?
- valve stenosis
- valve regurgitation
- damage to heart muscles;
Pericarditis , myocarditis, vulvitis /endocarditis or law kolo together pancarditis (acute) -> chronic valvular disease progressing to arthymia and heart failure so yehsal valvular heart disease secondary to rheumatic heart disease
What is valve stenosis?
Valve doesnt open properly , diseased fibrotic valve so less blood goes too the next chamber and more blood than normal stays in the first chamber
What is valve regurgitation?
Valve does not close properly , so blood will trickle back causing murmur and turbulence,
More and more blood causes more load causes hypertropgy then heart failure
Symptoms or clinical picture of RHD?
- dyspnea
- palpitations ( awareness of heart rate due to rhythm or rate changes)
- cardiac murmur
- sot gharib when blood is travelling through stenosed valve
How to diagnose RHD or VHD?
- auscultation reveals cardiac murmur
- eco can be used to define the type of valve lesion and its extent
Can also show hypertrophy of the heart muscles
Transthoracic or trans esophogeal eco have higher accuracy - this all will determine if surgical correction is needed for valve
Treatment of RHD?
- protection against rheumatic fever via long acting penicillin G for 10 years
- prevent infective endocarditis
- valve replacement if severe
Problem that can arise with mechanical valve replacement?
- foreign body so body may have an immune response aka huge thrombus fo2 el valve that’s why patient has to take anticoagulant for life
- way more at risk for infective endocarditis
What is congenital hearty disease?
- structural abnormalities of the heart that form in utero
- very large spectrum of severity, can be asymptomatic and can be life threatening
- classified into cyanotic (blue) and acynotic
What is the tetralogy of fallot?
They are congenital cyanotic heart defects:
- ventricular septal defect: hole in ventricular septum , oxygenated and deoxygenated blood are mixed
- pulmonary stenosis (narrowing of the blood vessels supplying the lung)
- a misplaced aorta: takes blood from the wrong ventricle therefore delivers deoxygenated blood (takes from both)
- right ventricular hypertrophy
Acynotic heart diseases?
Don’t effect oxygen or blood supply but affect how the blood flows, abnormal
- atrial septum defect
- ventricular septum defect
- Patent ductus arteriosis (vessel connecting aorta and pulmonary artery)
What are complications of congenital and rheumatic valvular heart disease?
- heart failure
- infective endocarditis
- arthymia
- embolisation (due to turbulence men valve disease, can cause a stroke or embolus f ay heta fel gesm or if the turbulence is in the right ventricle to can cause a pulmonary embolism)