Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 11/18/2025

Diaphragmatic Injuries with Herniation

Clinical Presentations

  • Dyspnea (86%) is the most common symptom in traumatic diaphragmatic hernias, indicating respiratory compromise 3
  • Abdominal pain (17%) occurs due to visceral pain from organ displacement or obstruction, not nerve pain 3
  • Gastrointestinal symptoms, including intestinal obstruction, are particularly common in left-sided hernias, affecting the patient's digestive system 1, 2
  • Respiratory compromise results from a 25-50% decrease in pulmonary function due to herniated organs occupying thoracic space, impacting the patient's breathing 3

Pathophysiology

  • Mechanical displacement of abdominal organs into the thoracic cavity through a diaphragmatic defect leads to visceral complications 1, 2, 4
  • Visceral complications such as strangulation, volvulus, incarceration, and perforation cause visceral pain, not neuropathic pain 2, 3
  • Cardiopulmonary dysfunction from compression of thoracic structures contributes to the patient's overall condition 3
  • Herniation through a diaphragmatic defect does not typically involve nerve injury or compression that would produce neuropathic pain, as stated by the World Journal of Emergency Surgery 1, 4

Mortality and Complications

  • The mortality in diaphragmatic injuries is driven by hemorrhagic shock, associated organ injuries, and complications like bowel strangulation and perforation leading to sepsis—not by nerve injury 2, 3