Clinical Feature Early Stage (✓) Progressive Stage (✓✓) Advanced Stage (✓✓✓)
Fatigue ✓✓ ✓✓✓
Dyspnea, especially on exertion ✓✓ ✓✓✓
Anasarca (generalised swelling) ✓✓ ✓✓✓
Cardiac cachexia (muscle and weight loss) ✓✓ ✓✓✓
Flushing, diarrhoea, bronchospasm ✓✓ ✓✓✓
Edema, pleural effusions, ascites ✓✓✓
Right-sided heart failure without typical CaHD symptoms ✓✓
Constrictive pericarditis ✓✓✓
Tachyarrhythmias due to serotonin ✓✓ ✓✓✓
Elevated jugular venous pressure ✓✓ ✓✓✓
Palpable right ventricular impulse ✓✓ ✓✓✓
Murmurs (tricuspid/pulmonary regurgitation, stenosis) ✓✓ ✓✓✓
Blood pressure variability ✓✓ ✓✓✓
Peripheral edema, ascites, pulsatile hepatomegaly ✓✓✓