2019
Ventilatory Efficiency Identifies Patients Prone to Hypoxemia During One-Lung Ventilation
CHOBOLA, Miloš, Pavel HOMOLKA, Michal BENEJ, Zdeněk CHOVANEC, Kristián BRAT et. al.Základní údaje
Originální název
Ventilatory Efficiency Identifies Patients Prone to Hypoxemia During One-Lung Ventilation
Autoři
CHOBOLA, Miloš (203 Česká republika), Pavel HOMOLKA (203 Česká republika, domácí), Michal BENEJ (703 Slovensko, domácí), Zdeněk CHOVANEC (203 Česká republika, domácí), Kristián BRAT (703 Slovensko, domácí), Vladimír ŠRÁMEK (203 Česká republika), Lyle J. OLSON (840 Spojené státy) a Ivan ČUNDRLE (203 Česká republika, garant, domácí)
Vydání
JOURNAL OF CARDIOTHORACIC AND VASCULAR ANESTHESIA, PHILADELPHIA, W B SAUNDERS CO-ELSEVIER INC, 2019, 1053-0770
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30203 Respiratory systems
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.258
Kód RIV
RIV/00216224:14110/19:00110179
Organizační jednotka
Lékařská fakulta
UT WoS
000473249900028
Klíčová slova anglicky
hypoxemia; one-lung ventilation; cardiopulmonary exercise testing
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 5. 2020 09:31, Mgr. Tereza Miškechová
Anotace
V originále
Objectives: One-lung ventilation (OLV) may be complicated by hypoxemia. Ventilatory efficiency, defined as the ratio of minute ventilation to carbon dioxide output (V-E/VCO2), is increased with ventilation/perfusion mismatch and pulmonary artery hypertension, both of which may be associated with hypoxemia. Hence, the authors hypothesized increased V-E/VCO2 will predict hypoxemia during OLV. Design: Prospective observational study. Setting: Single-center, university, tertiary care hospital. Participants: The study comprised 50 consecutive lung resection candidates. Interventions: All patients underwent cardiopulmonary exercise testing before surgery. Patients who required inspired oxygen fraction (FiO2) >= 0.7 to maintain arterial oxygen (O-2) saturation >90% after 30 minutes of OLV were considered to be hypoxemic. The Student t or Mann-Whitney U test were used for comparison of patients who became hypoxemic and those who did not. Multiple regression analysis adjusted for age, sex, and body mass index was used to evaluate which parameters were associated with the V-E/VCO2 slope. Data are summarized as mean +/- standard deviation. Measurements and Main Results: Twenty-four patients (48%) developed hypoxemia. There was no significant difference in age, sex, and body mass index between hypoxemic and nonhypoxemic patients. However, patients with hypoxemia had a significantly higher V-E/VCO2 slope (30 +/- 5 v 27 +/- 4; p = 0.04) with exercise and lower partial pressure of oxygen/FiO2 (129 +/- 92 v 168 +/- 88; p = 0.01), higher mean positive end expiratory pressure (6.6 +/- 1.5 v 5.6 +/- 0.9 cmH(2)O; p = 0.02), and lower mean pulse oximetry O-2 saturation/FiO2 index (127 +/- 20 v 174 +/- 17; p < 0.01) during OLV. Multiple regression showed V-E/CO2 to be independently associated with the mean pulse oximetry O-2 saturation/FiO2 index (b = 0.28; F = 3.1; p = 0.05). Conclusions: An increased V-E/VCO2 slope may predict hypoxemia development in patients who undergo OLV. (C) 2019 Elsevier Inc. All rights reserved.