The short version. The 2024 AARC Clinical Practice Guideline on Spontaneous Breathing Trials states directly that the Rapid Shallow Breathing Index is not needed to determine readiness for an SBT. If RSBI under 105 is still a required checkbox in your unit’s weaning protocol, the evidence has moved on without you.
Why it fell out of favor. RSBI — respiratory rate divided by tidal volume — was never as predictive as its widespread adoption suggested. Multiple studies showed it slowed liberation without improving extubation outcomes. It became a bureaucratic gate rather than a clinical tool.
What replaces it. Clinical assessment. Adequate oxygenation on low support. Hemodynamic stability. Ability to initiate spontaneous effort. Intact airway. When the clinical picture says ready, start the SBT. The 30-to-120-minute trial itself is the test. RSBI was a pre-test the guideline says you do not need.
Action: Pull your unit’s SBT protocol. If RSBI is a required step, bring the 2024 AARC guideline to your medical director. Removing it shortens time to trial without increasing reintubation risk. That is a direct patient benefit.
The numbers. VAP occurs in 5 to 15 percent of mechanically ventilated patients and carries a mortality rate of 20 to 50 percent in ICU populations. The estimated additional cost per VAP case: $40,000 to $60,000. Most cases are preventable with bundle adherence. Most units still do not achieve consistent bundle compliance.
Where RTs own the bundle. Four VAP bundle components directly involve RT practice: head-of-bed elevation to 30 to 45 degrees (verified at every RT assessment), subglottic secretion drainage (RT awareness of ETT type and suction technique), oral hygiene coordination (RT is the primary bedside provider managing the airway), and daily sedation holidays tied to SBT readiness assessment. RTs do not just support the VAP bundle — they execute the respiratory components of it.
The documentation gap. Most RT departments do not formally track VAP bundle compliance as an RT outcome metric. Nursing tracks it. Infection control tracks it. The RT contribution is invisible in the data — and that invisibility hurts at budget time.
What to do: Ask your department manager whether RT-specific VAP bundle compliance is tracked separately from nursing compliance. If not, propose it. The data that demonstrates RT’s role in infection prevention outcomes is the same data that justifies your staffing levels.
The event. AARC Summer Forum 2026 runs July 13 to 15 in Bonita Springs, Florida. It is the mid-year educational conference — smaller and more focused than the November Congress, better for direct access to speakers and meaningful professional conversations. CRCE-accredited sessions across clinical, leadership, and education tracks.
Why it matters this year. The 2026 program reflects workforce advocacy and scope of practice as central themes. The Summer Forum has historically leaned toward leadership and education. This year signals the AARC is treating clinical advocacy as a year-round priority.
If you cannot attend. Session summaries and select recordings will publish through AARC University in the weeks following. The November Congress in New Orleans — November 14 to 17 — is the larger annual event.
Register now: aarc.org/congress for November. New Orleans. November 14 to 17. It sells out. Book before September.
The paper. Safdar and Barney, Journal of Clinical Medicine, published March 2026 — open access. It addresses NIV liberation in the hardest-to-wean ICU patients: COPD, obesity hypoventilation syndrome, neuromuscular disease, and post-cardiac surgery. Each population has distinct weaning considerations that blanket protocols do not capture.
The key finding. Gradual weaning — progressively reducing NIV hours rather than binary on/off — produces better outcomes in complex patients. For COPD: wean daytime NIV first, maintain nocturnal. For OHS: wean cautiously with close SpO2 and PaCO2 monitoring. For neuromuscular: wean based on VC thresholds, not clinical appearance alone.
The HFNC bridge. Using HFNC during NIV-off periods — rather than conventional oxygen — reduces work of breathing during the transition and improves weaning success in hypercapnic populations. Underused in most units relative to the evidence supporting it.
Find it: Search “Liberation from Non-Invasive Ventilation in Complex Intensive Care Unit Patients” in PubMed. Open access — no paywall. Print the disease-specific weaning tables and bring them to your next department meeting.
Next: GOLD COPD 2025 key changes — updated exacerbation criteria, phenotyping, and what it means at the bedside.
Soon: Tracheostomy management and RT-led decannulation — speaking valves, readiness criteria, protocols that actually move patients forward.
On deck: RT department leadership and succession — the conversation every director needs to have before the retirement wave hits.
Staying at the vent,
15 years across academic medical centers & community hospitals
