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3 "Hee Jung Suh"
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Original Article
Pulmonary
Effects of high-flow nasal cannula in patients with mild to moderate hypercapnia: a prospective observational study
Kyung Hun Nam, Hyung Koo Kang, Sung-Soon Lee, So-Hee Park, Sung Wook Kang, Jea Jun Hwang, So Young Park, Won Young Kim, Hee Jung Suh, Eun Young Kim, Ga Jin Seo, Younsuck Koh, Sang-Bum Hong, Jin Won Huh, Chae-Man Lim
Acute Crit Care. 2021;36(3):249-255.   Published online July 26, 2021
DOI: https://doi.org/10.4266/acc.2020.01102
  • 6,202 View
  • 249 Download
  • 3 Web of Science
  • 4 Crossref
AbstractAbstract PDF
Background
Evidence for using high-flow nasal cannula (HFNC) in hypercapnia is still limited. Most of the clinical studies had been conducted retrospectively, and there had been conflicting reports for the effects of HFNC on hypercapnia correction in prospective studies. Therefore, more evidence is needed to understand the effect of the HFNC in hypercapnia.
Methods
We conducted a multicenter prospective observational study after applying HFNC to 45 hospitalized subjects who had moderate hypercapnia (arterial partial pressure of carbon dioxide [PaCO2], 43–70 mm Hg) without severe respiratory acidosis (pH <7.30). The primary outcome was a change in PaCO2 level in the first 24 hours of HFNC use. The secondary outcomes were changes in other parameters of arterial blood gas analysis, changes in respiration rates, and clinical outcomes.
Results
There was a significant decrease in PaCO2 in the first hour of HFNC application (-3.80 mm Hg; 95% confidence interval, -6.35 to -1.24; P<0.001). Reduction of PaCO2 was more prominent in subjects who did not have underlying obstructive lung disease. There was a correction in pH, but no significant changes in respiratory rate, bicarbonate, and arterial partial pressure of oxygen/fraction of inspired oxygen ratio. Mechanical ventilation was not required for 93.3% (42/45) of our study population.
Conclusions
We suggest that HFNC could be a safe alternative for oxygen delivery in hypercapnia patients who do not need immediate mechanical ventilation. With HFNC oxygenation, correction of hypercapnia could be expected, especially in patients who do not have obstructive lung diseases.

Citations

Citations to this article as recorded by  
  • Safety and efficacy of high flow nasal canula in patients with mild hypercapnia
    Mohammed A. Ibrahim, Magdy Emara, Mohammed Shehta
    The Egyptian Journal of Bronchology.2023;[Epub]     CrossRef
  • Current status of treatment of acute respiratory failure in Korea
    Yong Jun Choi, Jae Hwa Cho
    Journal of the Korean Medical Association.2022; 65(3): 124.     CrossRef
  • High-flow nasal cannula: Evaluation of the perceptions of various performance aspects among Chinese clinical staff and establishment of a multidimensional clinical evaluation system
    Ruoxuan Wen, Xingshuo Hu, Tengchen Wei, Kaifei Wang, Zhimei Duan, Zhanqi Zhao, Lixin Xie, Fei Xie
    Frontiers in Medicine.2022;[Epub]     CrossRef
  • The Application Progress of HFNC in Respiratory Diseases
    迪 吴
    Advances in Clinical Medicine.2022; 12(11): 10617.     CrossRef
Erratum
Pulmonary
Erratum to “Global and regional ventilation during high flow nasal cannula in patients with hypoxia”
Dong Hyun Lee, Eun Young Kim, Ga Jin Seo, Hee Jung Suh, Jin Won Huh, Sang-Bum Hong, Younsuck Koh, Chae-Man Lim
Acute Crit Care. 2021;36(2):173-173.   Published online May 28, 2021
DOI: https://doi.org/10.4266/acc.2017.00507.e1
Corrects: Acute Crit Care 2018;33(1):7
  • 2,727 View
  • 64 Download
PDF
Original Article
Pulmonary
Global and Regional Ventilation during High Flow Nasal Cannula in Patients with Hypoxia
Dong Hyun Lee, Eun Young Kim, Ga Jin Seo, Hee Jung Suh, Jin Won Huh, Sang-Bum Hong, Younsuck Koh, Chae-Man Lim
Acute Crit Care. 2018;33(1):7-15.   Published online January 22, 2018
DOI: https://doi.org/10.4266/acc.2017.00507
Correction in: Acute Crit Care 2021;36(2):173
  • 8,209 View
  • 250 Download
  • 3 Web of Science
  • 3 Crossref
AbstractAbstract PDF
Background
High flow nasal cannula (HFNC) is known to increase global ventilation volume in healthy subjects. We sought to investigate the effect of HFNC on global and regional ventilation patterns in patients with hypoxia.
Methods
Patients were randomized to receive one of two oxygen therapies in sequence: nasal cannula (NC) followed by HFNC or HFNC followed by NC. Global and regional ventilation was assessed using electric impedance tomography.
Results
Twenty-four patients participated. Global tidal variation (TV) in the lung was higher during HFNC (NC, 2,241 ± 1,381 arbitrary units (AU); HFNC, 2,543 ± 1,534 AU; P < 0.001). Regional TVs for four iso-gravitational quadrants of the lung were also all higher during HFNC than NC. The coefficient of variation for the four quadrants of the lung was 0.90 ± 0.61 during NC and 0.77 ± 0.48 during HFNC (P = 0.035). Within the four gravitational layers of the lung, regional TVs were higher in the two middle layers during HFNC when compared to NC. Regional TV values in the most ventral and dorsal layers of the lung were not higher during HFNC compared with NC. The coefficient of variation for the four gravitational layers of the lung were 1.00 ± 0.57 during NC and 0.97 ± 0.42 during HFNC (P = 0.574).
Conclusions
In patients with hypoxia, ventilation of iso-gravitational regions of the lung during HFNC was higher and more homogenized compared with NC. However, ventilation of gravitational layers increased only in the middle layers. (Clinical trials registration number: NCT02943863).

Citations

Citations to this article as recorded by  
  • High-flow nasal cannulae for respiratory support in adult intensive care patients
    Sharon R Lewis, Philip E Baker, Roses Parker, Andrew F Smith
    Cochrane Database of Systematic Reviews.2021;[Epub]     CrossRef
  • Failure of High-Flow Nasal Cannula Therapy in Pneumonia and Non-Pneumonia Sepsis Patients: A Prospective Cohort Study
    Eunhye Kim, Kyeongman Jeon, Dong Kyu Oh, Young-Jae Cho, Sang-Bum Hong, Yeon Joo Lee, Sang-Min Lee, Gee Young Suh, Mi-Hyeon Park, Chae-Man Lim, Sunghoon Park
    Journal of Clinical Medicine.2021; 10(16): 3587.     CrossRef
  • High-flow nasal cannulae for respiratory support in adult intensive care patients
    Sharon R Lewis, Philip E Baker, Roses Parker, Andrew F Smith
    Cochrane Database of Systematic Reviews.2017;[Epub]     CrossRef

ACC : Acute and Critical Care