Diaphragmatic trauma: Difference between revisions

 
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==Background==
==Background==
*Associated with penetrating or blunt trauma to lower chest/upper abdomen
[[File:1113 The Diaphragm.jpg|thumb|Diaphragm anatomy from inferior view.]]
[[File:Gray530.png|thumb|Left pleura cavity and diaphram (viewed from left).]]
[[File:Body Cavities Frontal view labeled 2.jpg|thumb|The pericardial cavity in this image is labeled d and is part of the inferior mediastium. Here we can see its relation to the superior mediastinum a, the pleural cavities c, and the diaphragm e.]]
*Associated with penetrating or blunt trauma to lower [[thoracic trauma|chest]]/[[abdominal trauma|upper abdomen]]
**~65% from penetrating, 35% from blunt<ref>National Trauma Data Base. American College of Surgeons 2000-2004. https://ntdbdatacenter.com/ (Accessed on January 01, 2021).</ref>
*If missed, can lead to herniation of viscera and tension enterothorax
*If missed, can lead to herniation of viscera and tension enterothorax
*Most commonly left sided
*Most commonly left sided
*Majority will have other injuries which can mask symptoms of diaphragm injury
*Majority will have other injuries which can mask symptoms of diaphragm injury
*75% of the time occurs on the left side; the liver is protective on the right side
*Presentation can be delayed months to years after the initial trauma


==Clinical Features==
==Clinical Features==
*Pain
*[[abdominal pain|Upper abdominal]]/[[chest pain|lower chest pain]]
*Shortness of breath
*[[Shortness of breath]]
*Diminished breath sounds on side of rupture
*Diminished breath sounds on side of rupture
*Kehr Sign: shoulder pain from referred diaphragm pain


==Differential Diagnosis==
==Differential Diagnosis==
{{Thoracic trauma DDX}}
{{Thoracic trauma DDX}}
{{Abdominal trauma DDX}}


==Evaluation==
==Evaluation==
*CXR may show visceral herniation
[[File:Diaphragmatic rupture spleen herniation.jpg|thumb|[[CXR]] of diaphragmatic rupture with spleen herniation.]]
*CT chest/abdomen/pelvis with contrast may better detect smaller herniations (Roughly 82% sensitive and 88% specific)
[[File:PMC5098930 poljradiol-81-522-g003.png|thumb|Coronal reformatted CT image shows constriction of the herniated stomach at the level of a ruptured diaphragm (collar sign) after blunt trauma.]]
[[File:PMC5098930 poljradiol-81-522-g002.png|thumb|CT showing left hemidiaphragmatic rupture with a "dangling diaphragm
sign and herniation of the stomach (confirmed on surgery).]]
*[[CXR]] may show visceral herniation
**Poorly sensitive
*CT chest/abdomen/pelvis with contrast may better detect smaller herniations (roughly 82% sensitive and 88% specific) <ref> Yucel, M et al. Evaluation of diaphragm in penetrating left thoracoabdominal stab injuries: The role of multislice computed tomography. Injury. 2015 Sep;46(9):1734-7. </ref>
**"Collar sign"
***waist-like constriction of abdominal viscera
*MRI better evaluates the diaphragm itself in stable patients in whom the diagnosis is unclear
*MRI better evaluates the diaphragm itself in stable patients in whom the diagnosis is unclear
*Surgical exploration is ultimately the best diagnostic modality (thoracoscopy vs laparoscopy vs ex-lap depending on concurrent injuries)
*Surgical exploration is ultimately the best diagnostic modality (thoracoscopy vs laparoscopy vs ex-lap depending on concurrent injuries)
*Thoracoscopy
*Laparoscopy


==Management==
==Management==
*[[NG tube]] decompression
*Surgery is required to fix the defect
*Surgery is required to fix the defect



Latest revision as of 22:10, 20 April 2022

Background

Diaphragm anatomy from inferior view.
Left pleura cavity and diaphram (viewed from left).
The pericardial cavity in this image is labeled d and is part of the inferior mediastium. Here we can see its relation to the superior mediastinum a, the pleural cavities c, and the diaphragm e.
  • Associated with penetrating or blunt trauma to lower chest/upper abdomen
    • ~65% from penetrating, 35% from blunt[1]
  • If missed, can lead to herniation of viscera and tension enterothorax
  • Most commonly left sided
  • Majority will have other injuries which can mask symptoms of diaphragm injury
  • 75% of the time occurs on the left side; the liver is protective on the right side
  • Presentation can be delayed months to years after the initial trauma

Clinical Features

Differential Diagnosis

Thoracic Trauma

Abdominal Trauma

Evaluation

CXR of diaphragmatic rupture with spleen herniation.
Coronal reformatted CT image shows constriction of the herniated stomach at the level of a ruptured diaphragm (collar sign) after blunt trauma.
CT showing left hemidiaphragmatic rupture with a "dangling diaphragm sign and herniation of the stomach (confirmed on surgery).
  • CXR may show visceral herniation
    • Poorly sensitive
  • CT chest/abdomen/pelvis with contrast may better detect smaller herniations (roughly 82% sensitive and 88% specific) [2]
    • "Collar sign"
      • waist-like constriction of abdominal viscera
  • MRI better evaluates the diaphragm itself in stable patients in whom the diagnosis is unclear
  • Surgical exploration is ultimately the best diagnostic modality (thoracoscopy vs laparoscopy vs ex-lap depending on concurrent injuries)
  • Thoracoscopy
  • Laparoscopy

Management

  • NG tube decompression
  • Surgery is required to fix the defect

Disposition

  • Admit

See Also

References

  1. National Trauma Data Base. American College of Surgeons 2000-2004. https://ntdbdatacenter.com/ (Accessed on January 01, 2021).
  2. Yucel, M et al. Evaluation of diaphragm in penetrating left thoracoabdominal stab injuries: The role of multislice computed tomography. Injury. 2015 Sep;46(9):1734-7.