Abstract：
INTRODUCTION:The aim of our study was to compare the reliability and safety of the classical I-AT with the continuous positive airway pressure apnea test (CPAP-AT). MATERIAL AND METHODS:In the group of 48 patients (group O), an I-AT was performed at the end of BD diagnostic procedures, and approximately 1-1.5h later CPAP-AT with 100% FiO2 and CPAP of 10cm H2O, provided by ventilator in CPAP mode. After pre‑oxygenation with 100% FiO2 for 10min, the PaO2/FiO2 ratio was recorded prior to I-AT at time-point one (T1) and prior to CPAP-AT at time-point two (T2). Group O was categorized into subgroup N-H (non-hypoxemic), consisting of 41 patients with good lung function, and subgroup H (hypoxemic) consisting of 7 patients with poor lung function. Within each subgroup PaO2/FiO2 at T1 and T2 were compared. RESULTS:In Group O, PaO2/FiO2 decreased from 321±128mmHg at T1 to 291±119mmHg at T2 (p=0.004). In subgroup N-H, PaO2/FiO2 declined from 355±103 to 321±100mmHg (p=0.008), and in subgroup H, PaO2/FiO2 remained almost unchanged. Additionally, in 4 patients from subgroup N-H, PaO2/FiO2 decreased below 200mmHg at T2. CONCLUSIONS:Our study indicates that I-AT may compromise pulmonary function and this may support the recommendation of safer CPAP-AT alternative.
journal_name
J Crit Carejournal_title
Journal of critical careauthors
Sołek-Pastuszka J,Sawicki M,Iwańczuk W,Kojder K,Saucha W,Czajkowski Z,Chełstowski K,Bohatyrewicz Rdoi
10.1016/j.jcrc.2017.10.038subject
Has Abstractpub_date
2018-04-01 00:00:00pages
175-178eissn
0883-9441issn
1557-8615pii
S0883-9441(17)31203-0journal_volume
44pub_type
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