Pathology: Incompetent Tricuspid valveallowing backflow of blood into right atrium
Aetiology: Right ventriculardilatation, right ventricular infarction, rheumatic fever,
pulmonary hypertension, infectiveendocarditis, chronic heart disease, carcinoid, Ebstein malformation due tolithium maternal therapy causing apical displacement of the tricuspid valveleaflets leading to atrialization of the right ventricle
Symptoms: Rightheart failure, anorexia, nausea, abdominal pain
Signs: RaisedJVP, giant ‘v’ waves, right ventricular parasternal heave, AF, pansystolicmurmur at the left lower sternal edge loudest on inspiration. 3rdheart sound, ascites, peripheral oedema, pulsatile and tender hepatomegaly
Investigations: ECG: Right axis deviation andconduction delay
Chest X-Ray: cardiomegaly
Echo: Assesses for leaflet abnormalities andestimates pulmonary pressures
Treatment: Medical: Salt restriction
Diuretics for peripheral oedema
Complications: Arrhythmias
Prognosis: Related to underlying cause
