Which hemodynamic change can occur with pneumothorax?

In the context of pneumothorax, decreased blood pressure arises from the compromised respiratory function and impaired venous return that can occur when air enters the pleural space. This air leads to lung collapse, reducing oxygenation and potentially causing hypovolemia or decreased venous return to the heart. As a result, there is less effective circulation, which ultimately leads to a drop in blood pressure.

Pneumothorax can also lead to increased intrathoracic pressure, which further inhibits venous return, resulting in a decrease in cardiac output and contributing to hypotension. This physiological process highlights the significance of monitoring blood pressure in the presence of pneumothorax as a critical indicator of cardiovascular stability in affected patients.

Understanding these changes is essential for healthcare providers in neonatal intensive care to recognize the signs of hemodynamic instability and respond promptly.