 [ Symptoms ] how to know when congestive heart failure is cured it was caused by pulmonary hypertension i have still fluid retention after 10 days of failed lasix dosage has now been increased to total 160 mg lasix a day beta blocker has my heart rate averaging 80 bpm my right foot is often ice cold sometimes my whole right leg my next cardiologist appt is in 2 12 weeks [ Disease ] that would be a pediatric gastoenterologist but many pediatricians are quite skilled in managing this common disorder