Exclusion criteria were severe combined injury, unstable vital signs after resuscitation such as systolic blood pressure less than 90 mmHg or oxygen saturation less than 94 %, and pregnant women.
BMI, body mass index; AHI, Apnea hypopnea index; TSat90, percent night-time at less than 90%% oxygen saturation; ESS, Epworth Sleepiness Scale.
Positive end-expiratory pressure levels were adjusted in increments of 2 cm H2O to maintain the FiO2 at 0.6 or less with arterial oxygen saturation of >91%, if possible.
Among the risk factors, the most prominent factors included breathing rate greater than 49 times per minute or less than 6 times per minute, peripheral oxygen saturation less than 75%%, and coma level with Glasgow coma score less than 5 points or AVPU scale (A: Alert, V: Verbal, P: Pain, U: Unresponsive) different from alert (Additional files 4 and 5).
Regarding reversible acute cardiac failure acidemia and/or lactatemia, central venous oxygen saturation less than 55%%, cardiac index less than 2 L/min m or vasoactive score in a time perspective above 45 50 μg/kg min−1 favor ECMO.
The patients had to have an F iO2 less than 0.4, peripheral oxygen saturation (SpO2) greater than 93%% and PEEP less than 10 cmH2O.
In all patients, the laryngoscopic view grades were virtually identical and grade IIa or less with both blades, the study procedure lasted less than 120s, and oxygen saturation remained greater than 97%.
Among them, we included those admitted for ARF, defined as severe dyspnea at rest, respiratory rate greater than 30 breaths per minute or clinical signs of respiratory distress and oxygen saturation less than 92% or partial pressure of oxygen in arterial blood less than 60 mmHg on room air [ 27].
Since the 1960s, areas of hypoxia (less than 30% of oxygen saturation) in coastal zones have increased exponentially [4].
Desaturation was defined as oxygen saturation less than 90% measured by pulse oximetry.
