Doctors Who Treat Congenital Nephrotic Syndrome in Babies

When your baby is diagnosed with congenital nephrotic syndrome (Finnish type), the hospital environment can feel overwhelming. Because this condition causes massive protein loss in the urine and affects many of your baby’s body systems, their care requires a highly specialized, collaborative approach ^[1][2]. Your baby will be cared for by a multidisciplinary team of experts at a specialized pediatric center ^[1].

Below is a breakdown of the doctors and specialists who will make up your baby’s care team, what they do, and how they work together during your baby’s hospital stay and beyond.

Neonatologists

In the first days or weeks of life, your baby will likely be in the Neonatal Intensive Care Unit (NICU). Here, neonatologists—doctors who specialize in the care of sick newborns—will manage your baby’s immediate medical needs ^[3]. They focus on keeping your baby stable by monitoring their breathing, blood pressure, and ensuring they have the right amount of fluid inside their blood vessels (a vital balance known as intravascular euvolemia) ^[3][1]. They also coordinate early genetic testing to confirm the diagnosis ^[3]. Parents are usually encouraged to be as involved as possible in their baby’s day-to-day care even while in the NICU.

Pediatric Nephrologists

Pediatric nephrologists are kidney specialists for children and act as the primary leaders of your baby’s long-term medical team ^[1]. They manage the core complications of the disease, such as preventing dangerous blood clots, managing severe swelling from fluid leaking into the tissues (edema), and balancing fluids and electrolytes ^[1]. Because babies with this syndrome also lose infection-fighting proteins in their urine, nephrologists actively manage infection risk using preventative antibiotics or targeted immunizations ^[1]. They determine if your baby can be managed conservatively with albumin infusions, or if more aggressive steps like surgery are needed ^[1][4]. They will guide your baby’s care from the hospital all the way through to a future kidney transplant ^[1].

Pediatric Renal Dietitians

Because your baby is losing large amounts of vital proteins in their urine, nutrition is a critical part of their initial treatment ^[1]. Pediatric renal dietitians are specialized nutrition experts who design a tailored feeding plan. Initially, they ensure your baby receives a high-energy diet (about 130 calories per kilogram of body weight per day) and a high-protein diet (about 4 grams per kilogram per day) to counteract what is lost ^[1]. Note: These targets will change significantly if your baby has their kidneys removed or starts dialysis, as high protein can become dangerous when the kidneys no longer process it. The dietitian will constantly adjust the feeding plan and ensure fluid intake is balanced with nutritional needs ^[1].

Pediatric Surgeons

If your baby’s protein loss is too severe to manage with medications and nutrition alone, pediatric surgeons may need to perform a nephrectomy (surgical removal of one or both kidneys) ^[5][6]. Removing both kidneys completely stops the massive protein loss and can help your baby grow, but it also means your baby will instantly be dependent on dialysis until they are big enough for a transplant ^[5][6][1]. Surgeons also place the specialized central venous lines needed for albumin infusions and the catheters needed for dialysis ^[1][6].

Dialysis and Pediatric Nephrology Nurses

Pediatric nephrology nurses (often including dialysis nurses) provide the hands-on, day-to-day care for your baby ^[1]. They administer vital albumin infusions, monitor for signs of infection, and manage dialysis therapies ^[1][7]. Most babies who need dialysis will undergo peritoneal dialysis (which uses the lining of the belly to filter the blood) ^[8]. Importantly, these nurses will teach you how to care for your baby, including how to safely give albumin infusions or perform peritoneal dialysis at home, making the transition out of the hospital possible ^[1][9].

Transplant Surgeons

Kidney transplantation is currently the best definitive treatment for congenital nephrotic syndrome ^[10]. Transplant surgeons usually join the care team when your baby is approaching the right size for surgery—typically around 10 kilograms (22 pounds) ^[1]. They work with the nephrologists to plan and perform the transplant surgery, giving your baby a new, healthy kidney that does not leak protein ^[10][1].

General Pediatrician

Your baby will still need a general pediatrician to provide routine care. While the specialists handle kidney-specific treatments, your general pediatrician will collaborate with the nephrology team to manage typical childhood needs like ear infections, common colds, and routine vaccines.

Other Key Team Members

• Pediatric Pharmacists: Given the intense medication management needed (diuretics, blood thinners, thyroid replacement, and antibiotics), specialized pharmacists play a crucial role in compounding and dosing these medications safely for tiny infants.
• Clinical Geneticists and Counselors: They help explain the genetic cause of the syndrome (often a mutation in the NPHS1 gene) and discuss the risk of it occurring in future pregnancies ^[1][11].
• Social Workers and Psychologists: They provide emotional support, help navigate insurance and hospital systems, and assist your family in coping with the immense psychosocial stress of a complex medical diagnosis ^[1].

By working together, this team ensures that every aspect of your baby’s health is monitored, aiming to provide the safest path toward growth and eventual kidney transplantation ^[1][2].