Articles: mechanical-ventilation.
-
Closed loop control of mechanical ventilation is routine and operates behind the ventilator interface. Reducing caregiver interactions is neither an advantage for the patient or the staff. Automated systems causing lack of situational awareness of the intensive care unit are a concern. ⋯ Alert notifications for sudden escalation of therapy are required to ensure patient safety. Automated ventilation is useful in remote settings in the absence of experts. Whether automated ventilation will be accepted in large academic medical centers remains to be seen.
-
Am. J. Respir. Crit. Care Med. · Jul 2018
Randomized Controlled TrialTiming of Renal Support and Outcome of Septic Shock and Acute Respiratory Distress Syndrome. A Post Hoc Analysis of the AKIKI Randomized Clinical Trial.
The optimal strategy for initiation of renal replacement therapy (RRT) in patients with severe acute kidney injury in the context of septic shock and acute respiratory distress syndrome (ARDS) is unknown. ⋯ Early RRT initiation strategy was not associated with any improvement of 60-day mortality in patients with severe acute kidney injury and septic shock or ARDS. Unnecessary and potentially risky procedures might often be avoided in these fragile populations. Clinical trial registered with www.clinicaltrials.gov (NCT 01932190).
-
Expert Rev Respir Med · Jul 2018
ReviewRecognizing, quantifying and managing patient-ventilator asynchrony in invasive and noninvasive ventilation.
Patient-ventilator asynchrony may occur with modes of partial ventilatory support. Because this problem is associated with worsened outcomes, identifying and managing asynchronies has been recognized as a relevant clinical problem during both invasive and noninvasive (NIV) mechanical ventilation. Areas covered: In this review article, we first describe the different forms of patient-ventilator asynchrony and how they are classified and quantified. ⋯ Finally, we describe the actions that can be undertaken in order to limit the rate of asynchronies during both invasive ventilation and NIV mechanical ventilation, such as modifications of the ventilator mode and/or settings, variation of the sedation regimen (type and doses), and other technical pitfalls. Expert commentary: Detection of asynchronies is crucial in order to reduce their incidence, adopting adjustments of the ventilator settings, sedation regimen, and other technical pitfalls. It remains to be clarified whether the relationship between high incidence of asynchrony and worsened outcome is causative or just associative.
-
Critical care clinics · Jul 2018
ReviewAvoiding Respiratory and Peripheral Muscle Injury During Mechanical Ventilation: Diaphragm-Protective Ventilation and Early Mobilization.
Both limb muscle weakness and respiratory muscle weakness are exceedingly common in critically ill patients. Respiratory muscle weakness prolongs ventilator dependence, predisposing to nosocomial complications and death. ⋯ Major mechanisms of muscle injury include critical illness polymyoneuropathy, sepsis, pharmacologic exposures, metabolic derangements, and excessive muscle loading and unloading. The diaphragm may become weak because of excessive unloading (leading to atrophy) or because of excessive loading (either concentric or eccentric) owing to insufficient ventilator assistance.
-
Pediatric pulmonology · Jul 2018
Accuracy of oscillatory pressure measured by mechanical ventilators during high frequency oscillatory ventilation in newborns.
Oscillatory pressure (ΔP) measurement during high frequency oscillatory ventilation (HFOV) is technically challenging and influenced by all the components of the measurement system. ⋯ The ventilator model, the breathing circuit, the flowmeter, and the patient condition severely impacts ΔP measurement accuracy during HFOV, leading to highly variable performances. This prevents the possibility of using the ΔP required to normalize gas exchange as an indicator of patients' condition, complicates comparison of ventilators performances, and adds a significant element of complexity in clinical management of HFOV.