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Needle thoracostomy: implications of computed tomography chest wall thickness
Melissa L Givens1, Karen Ayotte, Craig Manifold
1Emergency Medicine Residency and Department of Radiology, San Antonio Uniformed Services Health Education Consortium, Brooke Army Medical Center/Wilford Hall Medical Center, San Antonio, TX 75390, USA. melissagivens@sbcglobal.net
Summary
A 5 cm catheter may not be long enough for needle decompression in emergency department patients. A longer catheter is recommended, particularly for women, to ensure pleural space penetration.
Area of Science:
- Emergency Medicine
- Thoracic Surgery
- Medical Imaging
Background:
- Tension pneumothorax is a life-threatening condition requiring emergent needle decompression.
- The standard catheter length for needle thoracostomy may be insufficient in some patient populations.
- Accurate measurement of chest wall thickness is crucial for effective decompression.
Purpose of the Study:
- To determine the optimal catheter length for needle thoracostomy.
- To assess chest wall thickness in emergency department patients with potential tension pneumothorax.
- To improve the success rate of needle decompression in diverse patient demographics.
Main Methods:
- Computed tomography (CT) scans of 111 trauma and resuscitation patients were analyzed.
- Chest wall thickness was measured at the second intercostal space, midclavicular line.
- Measurements were taken to the nearest 0.1 cm.
Main Results:
- The average chest wall thickness was 4.24 cm (95% CI: 3.97–4.52 cm).
- Approximately 25% of patients had a chest wall thickness exceeding 5 cm.
- Women exhibited significantly thicker chest walls (4.90 cm) compared to men (4.16 cm; p=0.022).
Conclusions:
- A 5 cm catheter would only ensure pleural space penetration in 75% of patients.
- A longer catheter is recommended for needle thoracostomy to increase efficacy.
- Consideration of longer catheters is especially important for female patients.