Leaking esophageal probe may lead to false ventilator settings when guiding positive end-expiratory pressure by transpulmonary pressure
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Leaking esophageal probe may lead to false ventilator settings when guiding positive end-expiratory pressure by transpulmonary pressure. / Eichler, Lars; Truskowska, Katarzyna; Goetz, Alwin E; Zöllner, Christian.
In: ANESTH ANALG, Vol. 117, No. 3, 01.09.2013, p. 649-51.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Leaking esophageal probe may lead to false ventilator settings when guiding positive end-expiratory pressure by transpulmonary pressure
AU - Eichler, Lars
AU - Truskowska, Katarzyna
AU - Goetz, Alwin E
AU - Zöllner, Christian
PY - 2013/9/1
Y1 - 2013/9/1
N2 - Esophageal pressure (Pes) is a surrogate for intrapleural pressure. Measuring Pes during mechanical ventilation allows for positive end-expiratory pressure adjustments by transpulmonary pressure (PL), which has been shown to improve oxygenation and outcome in acute respiratory distress syndrome patients. In morbidly obese patients, we saw progressively increasing PL measurements, although airway pressure (Paw), intra-abdominal pressure, and patient position did not change. On further examination, we determined that the gradual increases of PL were artifacts caused by a leak in the pressure probes, which resulted in underestimation of Pes and overestimation of PL as derived from the equation Paw - Pes = PL.
AB - Esophageal pressure (Pes) is a surrogate for intrapleural pressure. Measuring Pes during mechanical ventilation allows for positive end-expiratory pressure adjustments by transpulmonary pressure (PL), which has been shown to improve oxygenation and outcome in acute respiratory distress syndrome patients. In morbidly obese patients, we saw progressively increasing PL measurements, although airway pressure (Paw), intra-abdominal pressure, and patient position did not change. On further examination, we determined that the gradual increases of PL were artifacts caused by a leak in the pressure probes, which resulted in underestimation of Pes and overestimation of PL as derived from the equation Paw - Pes = PL.
KW - Air Pressure
KW - Airway Management
KW - Bariatric Surgery
KW - Esophagus
KW - Humans
KW - Medical Errors
KW - Positive-Pressure Respiration
KW - Pressure
KW - Respiration, Artificial
KW - Ventilators, Mechanical
U2 - 10.1213/ANE.0b013e31829ec090
DO - 10.1213/ANE.0b013e31829ec090
M3 - SCORING: Journal article
C2 - 23868893
VL - 117
SP - 649
EP - 651
JO - ANESTH ANALG
JF - ANESTH ANALG
SN - 0003-2999
IS - 3
ER -