To detect patient-ventilator dyssynchronies, the physician should assess patient comfort and carefully inspect the pressure- and flow-time waveforms, available on the ventilator screen of all modern ventilators. Modern ventilators offer several modifiable settings to improve patient-ventilator interaction.

2021年4月27日 · If not recognised, it may promote oversedation, prolong the duration of mechanical ventilation, create risk for lung injury, and generally confuse the clinical picture. Seven forms of dyssynchrony are common: (a) ineffective triggering; (b) autotriggering; (c) inadequate flow; (d) too much flow; (e) premature cycling; (f) delayed cycling; and ...

Overshoot phenomena of the gas exchange ratio (R:VCO 2 /VO 2), ventilatory equivalent for O 2 (VE/VO 2), and end-tidal O 2 pressure (PETO 2) are commonly observed during recovery from maximal cardiopulmonary exercise testing (CPX).

The aim of this study is to evaluate cardiovascular and respiratory effects of intrathoracic pressure overshoot (higher than insufflation pressure) in patients who underwent thoracoscopic esophagectomy procedures with carbon dioxide (CO2) ...

2016年8月7日 · 3 Use ventilator scalars and loops to identify changes in lung compliance and airway resistance, inappropriate sensitivity settings, inadequate inspiratory flow, auto-PEEP, leaks in the ventilator circuit, active exhalation during pressure support ventilation, and an inspiratory pressure overshoot during pressure-support ventilation.

AUC for overshoot, delay termination and composite indexes were 0.55±0.12, 0.62±0.12 and 0.70±0.10 respectively. Dish-out index is the best predictor of prolonged mechanical ventilation, compared with other patterns of patient-ventilator asynchrony.

2007年11月10日 · To understand the mechanism of P AW overshoot it is necessary to review how the ventilator controls P AW. When gas is flowing into the patient, P AW (i.e. upstream pressure) is higher than downstream pressure (alveolar pressure; P ALV) by an amount corresponding to flow rate and respiratory resistance ( R RS; Fig. 1 ):

2025年1月2日 · Therefore, a structured approach to PVA management is crucial to improve patient–ventilator synchrony, limit adverse effects, and enhance ventilation comfort and outcomes.

2021年1月28日 · Mechanical ventilation is one of the most important life-supporting strategies for patients with critical illnesses, which aims to improve gas exchange and decrease the patient’s work of breathing and unload the respiratory muscles [1–3]. Optimal patient-ventilator interaction is essential to achieve these goals.

2017年12月1日 · Overshoot phenomena of the gas exchange ratio ( R :VCO 2 /VO 2 ), ventilatory equivalent for O 2 (VE/VO 2 ), and end-tidal O 2 pressure (PETO 2) are commonly observed during recovery from maximal cardiopulmonary exercise testing (CPX).