###Human: Can viral infection cause dilated cardiomyopathy in adult? ###Assistant: Hi. Your wife has multiple issues including dilated cardiomyopathy and PCOS (attachment removed to protect patient identity). There are multiple causes of dilated cardiomyopathy including viral infections, pregnancy, familial and idiopathic, tachycardia, PVCs, amyloidosis in late stages, etc. Treatment is going well which you told. Carvedilol dose can be increased if heart failure condition allows, Vymada can also be increased upto 200 mg if BP allows, Lasix can be added and Spironolactone should also be started at 25 mg per day. Doses should slowly be uptitrated. Yes sometimes condition is reversible, but after one year chances of reversibility are rare. Then a device called ICD is implanted in the heart to prevent cardiac arrest or CRTd for heart failure symptoms and to prevent cardiac arrest. For PCOS, consult a gynecologist. Praying for your wife's health.