International Journal of Medical and All Body Health Research  |  e-ISSN: 2582-8940  |  Double-Blind Peer Review  |  Open Access  |  CC BY-NC-SA 4.0

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     2026:7/4

International Journal of Medical and All Body Health Research

e-ISSN: 2582-8940 | Open Access

Comparative Evaluation of High-Flow Nasal Cannula and Non-Invasive Ventilation in Patients with Type II Respiratory Failure: A Randomized Controlled Study

Dr Sagar Solanki, Dr Sumit Redhu, Dr mohd Anash, Dr Sanjay Sahay, Dr Rajinder Saini

Rama Medical College Hospital, Hapur, Uttar Pradesh, India

Article Information

Volume / Issue7 / 1 (January-March 2026)
Pages13-23
AccessOpen Access

Publication Timeline

  • Received26 October 2025
  • Accepted27 November 2025

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Abstract

Background: Type II respiratory failure remains a significant cause of morbidity and mortality in critically ill patients. While non-invasive ventilation (NIV) is the established standard of care, high-flow nasal cannula (HFNC) has emerged as a promising alternative respiratory support modality.
Objective: To compare the clinical efficacy, safety, and patient tolerance of HFNC versus NIV in patients with acute type II respiratory failure.
Methods: This prospective randomized controlled trial was conducted over 18 months in a tertiary care respiratory intensive care unit. Eighty patients with acute type II respiratory failure were randomly allocated to receive either HFNC (n=40) or NIV (n=40). Primary outcome measures included improvement in arterial blood gas parameters (pH, PaCO₂, PaO₂), respiratory rate, heart rate, and treatment failure rates. Secondary outcomes included patient comfort scores, complications, duration of respiratory support, intensive care unit length of stay, and in-hospital mortality.
Results: Both groups demonstrated significant improvement in arterial blood gas parameters at 1, 6, 12, and 24 hours. The NIV group showed faster correction of hypercapnia and respiratory acidosis at 1 hour (mean PaCO₂: 52.3±6.8 vs 58.7±7.2 mmHg, p<0.001). However, by 24 hours, differences in pH and PaCO₂ were not statistically significant between groups. HFNC demonstrated superior patient comfort scores (8.2±1.1 vs 5.6±1.4, p<0.001) and significantly lower rates of skin breakdown (2.5% vs 22.5%, p=0.006). Treatment failure rates were comparable (HFNC: 12.5% vs NIV: 15.0%, p=0.74). No significant differences were observed in ICU length of stay or mortality rates.
Conclusion: HFNC represents an effective and well-tolerated alternative to NIV in managing acute type II respiratory failure, particularly in patients who may not tolerate NIV. While NIV provides faster initial correction of hypercapnia, HFNC offers comparable efficacy with superior comfort and fewer interface-related complications.
 

Keywords

High-flow nasal cannulaNon-invasive ventilationType II respiratory failureHypercapniaAcute respiratory failureRespiratory support

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How to Cite

Solanki, S., Redhu, S., Anash, M., Sahay, S., & Saini, R. (2026). Comparative Evaluation of High-Flow Nasal Cannula and Non-Invasive Ventilation in Patients with Type II Respiratory Failure: A Randomized Controlled Study. International Journal of Medical and All Body Health Research, 7(1), 13-23. https://doi.org/10.54660/IJMBHR.2026.7.1.13-23

Solanki, Sagar, et al. "Comparative Evaluation of High-Flow Nasal Cannula and Non-Invasive Ventilation in Patients with Type II Respiratory Failure: A Randomized Controlled Study." International Journal of Medical and All Body Health Research, vol. 7, no. 1, 2026, pp. 13-23. https://doi.org/10.54660/IJMBHR.2026.7.1.13-23.

Solanki, S., Redhu, S., Anash, M., Sahay, S. and Saini, R. (2026) 'Comparative Evaluation of High-Flow Nasal Cannula and Non-Invasive Ventilation in Patients with Type II Respiratory Failure: A Randomized Controlled Study', International Journal of Medical and All Body Health Research, 7(1), pp. 13-23. doi: 10.54660/IJMBHR.2026.7.1.13-23.

Solanki S, Redhu S, Anash M, Sahay S, Saini R. Comparative Evaluation of High-Flow Nasal Cannula and Non-Invasive Ventilation in Patients with Type II Respiratory Failure: A Randomized Controlled Study. International Journal of Medical and All Body Health Research. 2026;7(1):13-23. doi:10.54660/IJMBHR.2026.7.1.13-23

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