# Serum brain natriuretic peptide levels may be a useful marker for early diagnosis of cardiomyopathy secondary to neuroblastoma: A case report

## TL;DR

High brain natriuretic peptide levels in blood may help detect early heart damage in infants with neuroblastoma.

## Contribution

This case report suggests BNP levels can aid in early diagnosis of cardiomyopathy in neuroblastoma patients.

## Key findings

- Elevated BNP levels indicated cardiomyopathy before heart failure symptoms worsened.
- A 5-month-old neuroblastoma patient developed dilated cardiomyopathy.

## Abstract

Cardiomyopathy is a rare but serious complication associated with neuroblastoma. The brain natriuretic peptide level led to a diagnosis of secondary dilated cardiomyopathy before the worsening of heart failure symptoms.

A 5‐month‐old boy with neuroblastoma showed dilated cardiomyopathy.