Supraventricular tachycardia

Seventeen-year-old Xzaviar Aune spent his first few years in and out of the hospital, as doctors treated a host of heart problems: newborn persistent pulmonary hypertension,[...]

Read time: 2 minutes, 30 seconds The past year has been a difficult one for young Olivia Craker. She was diagnosed at just 12 years[...]