Main exclusion criteria were: O2≥15 L/min, immediate need for ventilatory support.
A repeated-measures generalized linear model (GLM) was used to assess the time interaction for ventilatory and oxygenation parameters during mechanical ventilation.
The need for ventilatory support and ICU admission relied on the association of respiratory acidosis (pH ≤ 7.35 and PaCO2 ≥ 45 mmHg), and a respiratory rate ≥25 b/min.
In the narcotic group, the day-one need for ventilatory assistance was 40.4%, versus 19.1% in the non-narcotic group (p < 0.05) [1].
Hence, standardised criteria for ventilatory and heart rate reporting are required for the interpretation of HRV data between studies (and hence, potentially, meta-analysis).
For example, fuzzy expected value was adopted in a computer program by Kuramoto et al. [6] for ventilatory control during clinical anesthesia, and Jaccard [7] applied it into snow avalanches to measure their semantic damage.
In addition, significant respiratory depression and the need for ventilatory support, which can be challenging in settings where advanced airway experience and supplies are often scarce, occur extremely rarely with ketamine [15, 16].
According to multivariate logistic regression analysis, the surgical specialty, revised trauma score < 9, injury severity core >15, the need for ventilatory support and the use of vasopressors significantly influenced mortality (P < 0.05).
In this context, it is important to remind that the majority of patients with hemorrhagic shock require the use of such agents to obtain analgesia or sedation for ventilatory intubation during shock management or before surgical intervention or embolization.
As such, it may not be sufficiently sensitive to detect nocturnal hypoventilation or to reveal the need for ventilatory support.
Pneumaticity in pectoral and pelvic girdles may provide a more straightforward signpost for ventilatory air sacs, because these bones are pneumatized exclusively by ventilatory sacs in living birds.
