Essential VAP/VAE prevention practices from SHEA 2022: avoid intubation, minimise sedation, SAT/SBT, mobility, head-up, subglottic drainage and oral care.
At the bedside
- 1
Avoid intubation
Use HFNC or NIV where appropriate to prevent intubation.
- 2
Minimise sedation
Avoid benzodiazepines; target light sedation; daily spontaneous awakening trials.
- 3
Daily SBT
DailyPaired with SAT, to extubate at the earliest opportunity.
- 4
Early mobility
Progressive rehabilitation as tolerated.
- 5
Subglottic drainage
Use endotracheal tubes with subglottic secretion drainage for patients expected to need ventilation > 48-72 h.
- 6
Head of bed
Elevate 30-45°.
- 7
Oral care
BDToothbrushing (without chlorhexidine) at least twice daily.
- 8
Circuit care
Change ventilator circuits only if visibly soiled or malfunctioning; keep cuff pressure 20-30 cmH₂O.
SHEA 2022 VAP prevention (adults)
| Category | Practice |
|---|---|
| Essential | Avoid intubation (HFNC/NIV); minimise sedation; SAT + SBT daily; early mobility; subglottic drainage tubes if > 48-72 h; head-of-bed 30-45°; change circuits only when soiled |
| Additional | Selective oral or digestive decontamination (in settings with low antimicrobial resistance); daily toothbrushing |
| Generally not recommended | Chlorhexidine oral care; probiotics; silver-coated tubes; routine stress ulcer prophylaxis for VAP prevention; early tracheostomy for VAP prevention |
Summary of SHEA/IDSA/APIC 2022 recommendations; see source for full grading.
Pathophysiology
Microaspiration of colonised oropharyngeal and gastric secretions past the endotracheal cuff, biofilm on the tube and impaired cough/mucociliary clearance cause VAP. Sedation and supine positioning increase aspiration.
Evidence
- SHEA/IDSA/APIC 2022 compendium update [Klompas 2022].
- PADIS guidance on sedation minimisation [Devlin 2018].
Controversies
- Selective digestive decontamination in high-resistance settings such as India; VAP definitions and surveillance using VAE.
🇮🇳 India notes
- Device-associated infection rates in Indian ICUs are higher than in high-income countries, with a large share caused by carbapenem-resistant Gram-negatives - bundle compliance audits are central (NCDC 2020).
- Subglottic drainage tubes cost more and may not be stocked; prioritise them for patients expected to be ventilated beyond 72 h.
- Selective digestive decontamination is not recommended in high-resistance settings.
References
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