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2 "Sung-Soon Lee"
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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
Pulmonary
The Use of Lung Ultrasound in a Surgical Intensive Care Unit
Hyung Koo Kang, Hyo Jin So, Deok Hee Kim, Hyeon-Kyoung Koo, Hye Kyeong Park, Sung-Soon Lee, Hoon Jung
Korean J Crit Care Med. 2017;32(4):323-332.   Published online November 30, 2017
DOI: https://doi.org/10.4266/kjccm.2017.00318
  • 8,030 View
  • 252 Download
  • 1 Web of Science
  • 1 Crossref
AbstractAbstract PDF
Background
Pulmonary complications including pneumonia and pulmonary edema frequently develop in critically ill surgical patients. Lung ultrasound (LUS) is increasingly used as a powerful diagnostic tool for pulmonary complications. The purpose of this study was to report how LUS is used in a surgical intensive care unit (ICU).
Methods
This study retrospectively reviewed the medical records of 67 patients who underwent LUS in surgical ICU between May 2016 and December 2016.
Results
The indication for LUS included hypoxemia (n = 44, 65.7%), abnormal chest radiographs without hypoxemia (n = 17, 25.4%), fever without both hypoxemia and abnormal chest radiographs (n = 4, 6.0%), and difficult weaning (n = 2, 3.0%). Among 67 patients, 55 patients were diagnosed with pulmonary edema (n = 27, 41.8%), pneumonia (n = 20, 29.9%), diffuse interstitial pattern with anterior consolidation (n = 6, 10.9%), pneumothorax with effusion (n = 1, 1.5%), and diaphragm dysfunction (n = 1, 1.5%), respectively, via LUS. LUS results did not indicate lung complications for 12 patients. Based on the location of space opacification on the chest radiographs, among 45 patients with bilateral abnormality and normal findings, three (6.7%) and two (4.4%) patients were finally diagnosed with pneumonia and atelectasis, respectively. Furthermore, among 34 patients with unilateral abnormality and normal findings, two patients (5.9%) were finally diagnosed with pulmonary edema. There were 27 patients who were initially diagnosed with pulmonary edema via LUS. This diagnosis was later confirmed by other tests. There were 20 patients who were initially diagnosed with pneumonia via LUS. Among them, 16 and 4 patients were finally diagnosed with pneumonia and atelectasis, respectively.
Conclusions
LUS is useful to detect pulmonary complications including pulmonary edema and pneumonia in surgically ill patients.

Citations

Citations to this article as recorded by  
  • Lung Ultrasound in the Critically Ill
    Jin Sun Cho
    The Korean Journal of Critical Care Medicine.2017; 32(4): 356.     CrossRef

ACC : Acute and Critical Care