Nasal Cannula Dislodgement During Sleep in Veterans Receiving Long-term Oxygen Therapy for Hypoxemic Chronic Respiratory Failure.

BACKGROUND

Chronic obstructive pulmonary disease (COPD) is highly prevalent in male veterans. Long-term oxygen therapy (LTOT) can effectively reduce all-cause mortality in these patients, but the effects of nasal cannula dislodgement (NCD) during sleep have not been well studied.

METHODS

This study sought to determine whether veterans receiving LTOT for hypoxemic chronic respiratory failure (CRF) due to COPD reported NCD while they slept and, if so, its impact on hospitalizations for COPD exacerbations. Electronic health records were reviewed of veterans with hypoxemic CRF due to COPD who received LTOT and were followed in the pulmonary clinic at the Jesse Brown Veterans Affairs Medical Center between February 1, 2022, and December 31, 2022. Overall hospital cost was calculated for each hospitalized veteran with diagnosed COPD exacerbation. Veterans reported whether they experienced NCD during sleep and, if so, its frequency.

RESULTS

Interviews were conducted with 66 veterans with a mean age of 71 years. Twenty-two veterans (33%) reported NCD ≥ 1 weekly (median, 4). There were no statistically significant differences in demographics, supplemental oxygen flow rate, duration of LTOT, and pulmonary function tests between patients with and without NCD. Ten patients (45%) with NCD and 9 patients (20%) without NCD were hospitalized for ≥ 1 COPD exacerbation (P = .045). Three patients (14%) with NCD were admitted to the medical intensive care unit. Overall hospital costs were 25% higher in the NCD group compared with the no NCD group.

CONCLUSIONS

Veterans receiving LTOT for hypoxemic CRF due to COPD who report frequent NCD during sleep have higher hospitalization rates for COPD exacerbation and higher hospital costs.