Pneumopericardium resulting in cardiac tamponade

Area of Science:

• Cardiology
• Thoracic Surgery
• Emergency Medicine

Background:

• Cardiac tamponade is typically caused by fluid accumulation in the pericardial sac.
• Pneumopericardium, or air in the pericardial space, is an increasingly recognized cause of cardiac tamponade.
• This condition is most prevalent in trauma patients and neonates receiving positive pressure ventilation.

Purpose of the Study:

• To review the incidence and outcomes of cardiac tamponade caused by pneumopericardium.
• To highlight the clinical recognition and management of air tamponade.
• To assess the prognostic significance of pneumopericardium.

Main Methods:

• Systematic review of 252 reported cases of pneumopericardium.
• Analysis of patient demographics, clinical presentation, and outcomes.
• Review of treatment modalities including needle aspiration and pericardial tube insertion.

Main Results:

• Cardiac tamponade developed in 37% (94 out of 252) of patients with pneumopericardium.
• Pneumopericardium leading to tamponade was common in trauma and neonatal ventilation cases.
• Mortality rates were high, with 57% (127 out of 221) of patients with known outcomes dying, even without tension pneumopericardium.

Conclusions:

• Pneumopericardium is a significant cause of cardiac tamponade with a poor prognosis.
• Prompt recognition via characteristic physical and radiographic findings is crucial.
• While treatable, the underlying condition associated with pneumopericardium contributes to high mortality.