# Neonatal Subcutaneous Emphysema Secondary to Chest Tube Placement Using the Trocar Technique: A Case Report

## TL;DR

A neonate developed subcutaneous emphysema after a chest tube was placed using the trocar technique, highlighting a rare complication in infants.

## Contribution

This case report adds to the limited literature on subcutaneous emphysema in neonates following trocar-based chest tube placement.

## Key findings

- Subcutaneous emphysema occurred in a neonate after trocar technique chest tube placement.
- The complication is underreported in neonatal populations compared to adults.
- Clinicians should be aware of this potential complication in neonates.

## Abstract

Subcutaneous emphysema is a type of air leak in which air accumulates within the subcutaneous layer of the skin underneath the dermal layers. The accumulation of air can be seen on imaging in relevant body areas such as the abdomen, chest, face, or neck. During physical examination, crepitus, the sensation or sound of crackling upon palpation, is the most common associated finding. Various causes for subcutaneous emphysema exist, with one such cause being thoracostomy or chest tube placement. The trocar technique, in particular, has been associated with greater complications when compared to other techniques. Here, we present a case of subcutaneous emphysema in a neonate occurring after placement of a chest tube using the trocar technique. At this time, much of the knowledge regarding subcutaneous emphysema related to chest tube placement is in the adult population. Clinicians should be aware of this complication in neonates as the body of knowledge regarding this topic continues to grow.