Nelson D. Alphonso is a Pediatric Cardiologist based in South Brisbane, QLD, working from 501 Stanley Street, South Brisbane, QLD 4101, Australia.
Paediatric heart care can be complex, and kids need a plan that fits their age, their growth, and what their family is dealing with day to day. Dr Alphonso looks after babies, children and young people with a range of heart conditions, including problems they are born with and issues that show up as they grow.
In many cases, this includes congenital heart disease, such as ventricular septal defects and patent ductus arteriosus. At times, the needs can be more serious, like transposition of the great arteries, truncus arteriosus, or conditions affecting how blood flows through the heart and lungs.
Some referrals are about specific complex diagnoses, including atrioventricular septal defect and hypoplastic left heart syndrome (HLHS). There are also cases involving valve problems, such as aortic valve stenosis, pulmonary valve stenosis, and tricuspid regurgitation. Dr Alphonso also works with families when there are blood vessel or rhythm concerns, including vascular rings and high blood pressure in infants.
Not all heart-related problems sit neatly inside the heart itself. Sometimes the picture includes related conditions that affect breathing or overall health, like pulmonary oedema or total anomalous pulmonary venous return. And at times, care is needed after major events such as cardiac arrest, where careful follow-up matters a lot.
Children can also have conditions that come with other body-wide effects. Dr Alphonso may be involved in care for conditions such as Beckwith-Wiedemann syndrome, and in some situations, broader issues like congenital coronary artery malformation or factor 12 deficiency can be part of the overall plan.
When heart issues affect the airway or voice, like vocal cord dysfunction, coordinated management is often important too. Across all of this, the focus stays practical—clear communication, careful monitoring, and making sure families understand the next steps.
