Clinical use of high frequency ventilation

Area of Science:

• Anesthesiology
• Critical Care Medicine
• Respiratory Therapy

Background:

• High-frequency ventilation (HFV) encompasses high-frequency jet ventilation (HFJV) and high-frequency positive pressure ventilation (HFPPV).
• These techniques represent specialized ventilatory support options within anesthesia and critical care.

Purpose of the Study:

• To delineate the specific clinical applications where HFJV and HFPPV demonstrate superiority over conventional ventilation.
• To identify situations in anesthesia and intensive care where HFV offers advantages.
• To outline contraindications for HFV use.

Main Methods:

• Review of clinical evidence and established practices regarding HFJV and HFPPV.
• Comparison of HFV outcomes against conventional ventilation in various surgical and critical care settings.

Main Results:

• HFJV and HFPPV are superior to conventional ventilation in numerous ENT surgeries, airway procedures, thoracic surgeries, and lithotripsy.
• HFV provides advantages in acute respiratory failure with circulatory shock, acute ventricular failure, bronchopleural fistulas, and tracheostomy-related tracheal lesions.
• HFV yields results comparable to conventional ventilation in many other clinical scenarios.
• Chronic obstructive pulmonary disease and asthma are absolute contraindications due to risks of overdistension and hypoventilation.
• No advantage of HFV over conventional ventilation is observed in unilateral lung disease.

Conclusions:

• HFJV and HFPPV are valuable tools in specific anesthetic and critical care contexts, particularly for certain surgical procedures and complex respiratory failures.
• Careful patient selection is crucial, as HFV is contraindicated in obstructive airway diseases like COPD and asthma.
• Understanding the limitations and indications of HFV ensures optimal patient management and safety.