Cochrane · systematic review · CD010172

High‐flow nasal cannulae for respiratory support in adult intensive care patients

Lewis, SR, Baker, PE, Parker, R, et al. · Cochrane Database of Systematic Reviews · 2021 · Cochrane Library

Emergency and Critical Care2 versionsAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
16
current version
GRADE rated
15
No studies
1
Included studies
NR
No studies 1 · 6.3%Ungraded 0 · 0%Very low 6 · 37.5%Low 7 · 43.8%Moderate 2 · 12.5%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Current version only

HFNC compared to standard oxygen therapy for respiratory support in adult intensive care patients

Population: adults in the ICU, requiring respiratory support
CD010172.PUB3 (current) · 7 questions
OutcomeEffectEvidenceStatus / GRADE
Treatment failure (escalation of respiratory therapy to NIV, NIPPV or invasive ventilation) Measured up to 28 days
HFNC vs standard oxygen therapy
RR 0.62 [0.45, 0.86]15 studies · 3044 participantsLow
Downgraded: risk of bias, inconsistency
In‐hospital mortality (up to 90 days; included studies reported in‐hospital mortality, and mortality up to 28 days, up to ICU discharge, and at unspecified time points)
HFNC vs standard oxygen therapy
RR 0.96 [0.82, 1.11]11 studies · 2673 participantsModerate
Downgraded: inconsistency
Adverse events Respiratory infection (pneumonia) Nasal mucosa or skin trauma
HFNC vs standard oxygen therapy
RR 0.72 [0.48, 1.09]4 studies · 1057 participantsModerate
Downgraded: imprecision
Length of ICU stay
HFNC vs standard oxygen therapy
no estimate extracted7 studies · 1014 participantsLow
Downgraded: risk of bias, inconsistency
Respiratory effects: PaO2/FiO2 ratio up to 24 hours after initiation of therapy
HFNC vs standard oxygen therapy
no estimate extracted5 studies · 600 participantsVery low
Downgraded: risk of bias, inconsistency
Comfort (short‐term effect) Measured up to 24 hours, scales were standardised to allow comparison; higher numbers indicate more comfort
HFNC vs standard oxygen therapy
no estimate extracted4 studies · 662 participantsVery low
Downgraded: imprecision, inconsistency
Comfort (long‐term effect) Measured at more than 24 hours, scales were standardized to allow comparison; higher numbers indicate more comfort
HFNC vs standard oxygen therapy
no estimate extracted2 studies · 445 participantsVery low
Downgraded: imprecision, inconsistency

HFNC compared to NIPPV or NIV for respiratory support in adult intensive care patients

Population: adults in the ICU, requiring respiratory support
CD010172.PUB3 (current) · 9 questions
OutcomeEffectEvidenceStatus / GRADE
Treatment failure (escalation of respiratory therapy to NIV, NIPPV or invasive ventilation) Measured up to 28 days
HFNC vs NIPPV or NIV
RR 0.98 [0.78, 1.22]5 studies · 1758 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
In‐hospital mortality (up to 90 days; included studies reported in‐hospital mortality, and mortality up to 28 days and up to ICU discharge)
HFNC vs NIPPV or NIV
RR 0.92 [0.64, 1.31]5 studies · 1758 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Adverse events Respiratory infection (pneumonia)
HFNC vs NIPPV or NIV
RR 0.51 [0.17, 1.52]3 studies · 1750 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Barotrauma (pneumothorax)
HFNC vs NIPPV or NIV
RR 1.15 [0.42, 3.14]1 study · 830 participantsLow
Downgraded: imprecision
Nasal mucosa or skin trauma
HFNC vs NIPPV or NIV
no estimate extractedNRNo studies
Length of ICU stay
HFNC vs NIPPV or NIV
no estimate extracted2 studies · 246 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Respiratory effects: PaO2/FiO2 ratio up to 24 hours after initiation of therapy
HFNC vs NIPPV or NIV
no estimate extracted3 studies · 1086 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Comfort (short‐term effect) Measured up to 24 hours, scales were standardized to allow comparison; higher numbers indicate more comfort
HFNC vs NIPPV or NIV
no estimate extracted2 studies · 258 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Comfort (long‐term effect) Measured at more than 24 hours
HFNC vs NIPPV or NIV
no estimate extractedNRVery low
Downgraded: risk of bias, imprecision

HFNC compared to standard oxygen therapy for respiratory support in adult intensive care patients

Population: adults in the ICU, requiring respiratory support
CD010172.PUB2 · 7 questions
OutcomeEffectEvidenceStatus / GRADE
Treatment failure (escalation of respiratory therapy to NIV, NIPPV or invasive ventilation) Measured up to 28 days
HFNC vs standard oxygen therapy
RR 0.62 [0.45, 0.86]15 studies · 3044 participantsLow
Downgraded: risk of bias, inconsistency
In‐hospital mortality (up to 90 days; included studies reported in‐hospital mortality, and mortality up to 28 days, up to ICU discharge, and at unspecified time points)
HFNC vs standard oxygen therapy
RR 0.96 [0.82, 1.11]11 studies · 2673 participantsModerate
Downgraded: inconsistency
Adverse events Respiratory infection (pneumonia) Nasal mucosa or skin trauma
HFNC vs standard oxygen therapy
RR 0.72 [0.48, 1.09]4 studies · 1057 participantsModerate
Downgraded: imprecision
Length of ICU stay
HFNC vs standard oxygen therapy
no estimate extracted7 studies · 1014 participantsLow
Downgraded: risk of bias, inconsistency
Respiratory effects: PaO2/FiO2 ratio up to 24 hours after initiation of therapy
HFNC vs standard oxygen therapy
no estimate extracted5 studies · 600 participantsVery low
Downgraded: risk of bias, inconsistency
Comfort (short‐term effect) Measured up to 24 hours, scales were standardised to allow comparison; higher numbers indicate more comfort
HFNC vs standard oxygen therapy
no estimate extracted4 studies · 662 participantsVery low
Downgraded: imprecision, inconsistency
Comfort (long‐term effect) Measured at more than 24 hours, scales were standardized to allow comparison; higher numbers indicate more comfort
HFNC vs standard oxygen therapy
no estimate extracted2 studies · 445 participantsVery low
Downgraded: imprecision, inconsistency

HFNC compared to NIPPV or NIV for respiratory support in adult intensive care patients

Population: adults in the ICU, requiring respiratory support
CD010172.PUB2 · 9 questions
OutcomeEffectEvidenceStatus / GRADE
Treatment failure (escalation of respiratory therapy to NIV, NIPPV or invasive ventilation) Measured up to 28 days
HFNC vs NIPPV or NIV
RR 0.98 [0.78, 1.22]5 studies · 1758 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
In‐hospital mortality (up to 90 days; included studies reported in‐hospital mortality, and mortality up to 28 days and up to ICU discharge)
HFNC vs NIPPV or NIV
RR 0.92 [0.64, 1.31]5 studies · 1758 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Adverse events Respiratory infection (pneumonia)
HFNC vs NIPPV or NIV
RR 0.51 [0.17, 1.52]3 studies · 1750 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Barotrauma (pneumothorax)
HFNC vs NIPPV or NIV
RR 1.15 [0.42, 3.14]1 study · 830 participantsLow
Downgraded: imprecision
Nasal mucosa or skin trauma
HFNC vs NIPPV or NIV
no estimate extractedNRNo studies
Length of ICU stay
HFNC vs NIPPV or NIV
no estimate extracted2 studies · 246 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Respiratory effects: PaO2/FiO2 ratio up to 24 hours after initiation of therapy
HFNC vs NIPPV or NIV
no estimate extracted3 studies · 1086 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Comfort (short‐term effect) Measured up to 24 hours, scales were standardized to allow comparison; higher numbers indicate more comfort
HFNC vs NIPPV or NIV
no estimate extracted2 studies · 258 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Comfort (long‐term effect) Measured at more than 24 hours
HFNC vs NIPPV or NIV
no estimate extractedNRVery low
Downgraded: risk of bias, imprecision