RT Journal Article
SR Electronic
T1 Structural characteristics of a novel catheter for esophageal pressure monitoring
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP PA3229
DO 10.1183/13993003.congress-2021.PA3229
VO 58
IS suppl 65
A1 Gabriella Abbate
A1 Sebastiano Colombo
A1 Keibun Liu
A1 Clayton Semenzin
A1 Noriko Sato
A1 Carmen Ainola
A1 Emily Wood
A1 Davide Chiumello
A1 Jacky Suen
A1 Jo Pauls
A1 John Fraser
A1 Gianluigi Li Bassi
YR 2021
UL http://erj.ersjournals.com/content/58/suppl_65/PA3229.abstract
AB Introduction: Esophageal pressure monitoring allows estimation of transpulmonary pressure and precise application of lung-protective ventilation.Aims and Objectives: We describe structural characteristics of a novel esophageal catheter comprising a polyurethane balloon in comparison with commercially available alternatives.Methods: We tested a novel catheter (AspisafeNG+, Aspisafe Solution, NY, USA), designed to monitor esophageal pressure and prevent gastro-esophageal reflux vs. four commercially available catheters. We used a caliper to measure esophageal balloon outer diameter (OD) and length. Balloon compliance was measured via 0.5-mL increments of air up to an internal pressure of 40 cmH2O. Minimum volume (Vmin) was defined as the inflated volume that caused a linear increase in balloon internal pressure. Each experiment was made in triplicate.Results: Balloon OD varied among catheters (N 15, p=0.012) and ranged from median (IQR) of 6.6 (0.5) mm (Cooper®), up to 25.2 (0.2) mm (AspisafeNG+). Balloon lengths as well differed among catheters (N 15, p=0.013) from median (IQR) of 39.1 (2.5) mm (Aspisafe NG+), up to 100.7 (0.7) mm (Nutrivent®). Vmin (N 15, p=0.010) varied among catheters, as reported in Fig.1, while compliance did not (N 103, p=0.714).Measurements and Main Results: The novel esophageal balloon is characterized by large OD and Vmin. Manufacturers produce highly heterogeneous catheters for esophageal pressure monitoringFootnotesCite this article as: European Respiratory Journal 2021; 58: Suppl. 65, PA3229.This abstract was presented at the 2021 ERS International Congress, in session “Prediction of exacerbations in patients with COPD”.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).