Comparative Analysis of Needle Thoracostomy Success Rates: A Cadaveric Study on Intercostal Space Selection

Authors

  • Zaffar Iqbal Malik Department of Anatomy, Sahara Medical College, Narowal - Pakistan
  • Ahmad Yar Department of Anatomy, Sahara Medical College, Narowal - Pakistan
  • Mudassir Shahbaz Department of Anatomy, Sahara Medical College, Narowal - Pakistan
  • Mehwish Khalid Department of Anatomy, Sahara Medical College, Narowal - Pakistan
  • Ayesha Moazzam Department of Anatomy, Sahara Medical College, Narowal - Pakistan

Keywords:

Intercostal Space, Midclavicular Line, Midaxillary Line, Needle Thoracostomy

Abstract

Background: Needle thoracostomy is a critical intervention for tension pneumothorax, yet failure rates remain significant with traditional second intercostal space placement. Cadaveric studies suggest anatomical variations in chest wall thickness may impact success, but comparative data are limited in diverse populations. Objective: To compare the success rates of needle thoracostomy placement in the traditional second intercostal space (midclavicular line) versus the fifth intercostal space (midaxillary line) in a cadaveric model. Methodology: Thirty-two adult cadavers were studied with standardized needle thoracostomy placements in both the second and fifth intercostal spaces by using a 5-cm angiocatheters. Each site was assessed bilaterally (total 64 placements per site). Following needle insertion, thoracotomies were verified pleural cavity penetration. The thickness of chest wall was measured at both insertion points, with outcomes analyzed by gender and laterality. Results: Results showed that 5th intercostal space approach demonstrated significantly higher success rates (96.9% vs. 59.4%) and thinner chest wall thickness (3.4 ± 0.8 cm vs. 4.7 ± 1.0 cm) compared to the second intercostal space with significant effect. Gender disparities were notable, with female cadavers showing lower success rates (90% vs. 30%) and greater chest wall thickness at both sites. A 4.2 cm chest wall thickness cutoff predicted 2nd ICS failure (AUC = 0.89). Conclusion: The present study concluded that the fifth intercostal space (midaxillary line) provides significantly higher success rates for needle thoracostomy compared to the traditional second intercostal approach, particularly in female patients. The findings support updating current clinical guidelines to favor the lateral approach for more reliable emergent decompression of tension pneumothorax.

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Published

2025-07-13

How to Cite

Malik, Z. I. ., Yar, A. ., Shahbaz, M. ., Khalid, M. ., & Moazzam, A. . (2025). Comparative Analysis of Needle Thoracostomy Success Rates: A Cadaveric Study on Intercostal Space Selection. Pakistan Journal of Chest Medicine, 30(2), 197–202. Retrieved from http://pjcm.net/index.php/pjcm/article/view/962

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