Question

Difficulty: MediumPreoperative and Postoperative Care

A 68-year-old woman is recovering in the surgical intensive care unit shortly after undergoing a pancreaticoduodenectomy. Due to poor peripheral venous access, the surgical resident places a right internal jugular central venous catheter. Ten minutes after the procedure, the patient suddenly develops severe shortness of breath. Her temperature is 37.1°C, blood pressure is 76/40 mm Hg, heart rate is 138/min, and respiratory rate is 32/min. Oxygen saturation is 82% on room air. Physical examination reveals distended neck veins, absent breath sounds over the right lung field, and deviation of the trachea to the left side. Arrange the following management steps in the most appropriate chronological sequence for this patient.

  1. 1Initiate high-flow supplemental oxygen therapy.
  2. 2Perform emergent needle thoracostomy on the right side.
  3. 3Insert a definitive large-bore right-sided tube thoracostomy.
  4. 4Perform portable chest radiography.

Answer

The correct sequence for managing an acute tension pneumothorax is to first maximize oxygenation, followed immediately by needle decompression, then placement of a definitive chest tube, and finally confirming placement with a chest radiograph.
This patient has developed an iatrogenic tension pneumothorax, a known complication of central venous catheter placement, characterized by obstructive shock, absent unilateral breath sounds, and tracheal deviation. Management must proceed sequentially: initial ABCs with supplemental oxygen, immediate clinical intervention via needle decompression to relieve intrathoracic pressure, definitive surgical intervention via tube thoracostomy, and finally, diagnostic confirmation of the intervention via chest radiography.

Step-by-Step Solution

1
Administer supplemental oxygen.
Maximizes oxygen delivery.
Hypoxia must be immediately addressed as part of primary ABC assessment.
2
Perform needle decompression.
Converts a tension pneumothorax into a simple pneumothorax.
Rapidly relieves the intrathoracic pressure causing obstructive shock and cardiovascular collapse.
3
Insert a chest tube.
Provides continuous air evacuation.
Needle decompression is temporary; a chest tube definitively manages the pleural space.
4
Obtain a chest radiograph.
Visualizes the lung and tube.
Confirms adequate lung re-expansion and proper placement of the thoracostomy tube.

Key Concept

The diagnosis of iatrogenic tension pneumothorax is clinical and requires immediate needle decompression followed by tube thoracostomy before any radiographic confirmation in a hemodynamically unstable patient.
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