Clinical Definition

Trigger sensitivity controls:

  • Breath Initiation: How easily the device detects patient effort
  • Patient Synchrony: Affects timing of pressure support delivery
  • Work of Breathing: Influences how hard the patient must work to trigger support
  • Auto-Triggering: Prevents false triggering from leaks or movement
  • Comfort Optimization: Can be adjusted for individual breathing patterns

Trigger sensitivity is typically adjustable from very sensitive (easy to trigger) to less sensitive (requires more effort).

Etymology & History

Trigger sensitivity became an important parameter with the development of pressure support and BiPAP modes in the 1990s, allowing for better patient-ventilator interaction.

Reference Values & Interpretation

Normal Values

Optimal trigger sensitivity should allow easy breath initiation without causing auto-triggering from leaks or patient movement.

Abnormal Values

Trigger sensitivity that is too sensitive may cause auto-triggering, while sensitivity that is too low may increase work of breathing.

How It's Measured

Trigger sensitivity is adjusted during BiPAP titration based on patient breathing patterns, effort levels, and the presence of leaks or movement artifacts.

Role in Diagnosis

Trigger sensitivity adjustment is part of BiPAP optimization to ensure appropriate patient-ventilator synchrony and comfort.

Role in Treatment

Proper trigger sensitivity setting is important for BiPAP therapy success, ensuring easy breath initiation while preventing false triggering.

Associated Conditions

cycle-sensitivity|bipap|patient-ventilator-synchrony|pressure-support

">

Clinical Guidelines

[{"guideline_title":"AASM Clinical Practice Guideline for BiPAP Therapy","guideline_link":"/clinical/guidelines/aasm-bipap-therapy/"}]

Latest Research & Updates

AI-Updated Weekly

Recent BiPAP devices include advanced trigger algorithms that automatically adjust sensitivity based on patient breathing patterns and leak levels.