More than 300 related studies were reviewed. However, the level of evidence in most cases is at Cochrane level 4 or 5, indicating the need for further research. Forty-three recommendations are presented that include, but are not limited to, endorsement of a shared decision-making model, early and repeated care conferencing to reduce family stress and improve consistency in communication, honoring culturally appropriate requests for truth-telling and informed refusal, spiritual support, staff education and debriefing to minimize the impact of family interactions on staff health, family presence at both rounds and resuscitation, open flexible visitation, way-finding and family-friendly signage, and family support before, during, and after a death.
The Society of Critical Care Medicine supports the seven-step process presented in the multiorganization statement. This statement provides added guidance to clinicians in the ICU environment.
Arterial-alveolar differences for oxygen, carbon dioxide, and nitrogen were measured in 7 non-distressed preterm infants and 21 ventilator-dependent preterm infants with hyaline membrane disease. The preterm infants with hyaline membrane disease had a significantly lower average arterial pH (7.34 vs. 7.44; P less than 0.001), and significantly higher arterial-alveolar differences for oxygen (286 mm Hg vs. 34 mm Hg; P less than 0.005) and nitrogen (118 mm Hg vs. 7 mm Hg; P less than 0.005). Both groups had elevated arterial-alveolar differences for PCO2 (9 mm Hg in infants with hyaline membrane disease, 5 mm Hg in nondistressed infants; P less than 0.2). When acute changes in mean airway pressure were produced in 14 distressed infants, arterial-alveolar CO2 and N2 differences moved in opposite directions in 11 infants. This observation suggests that changes in mean airway pressure do not acutely recruit atelectatic alveoli, but cause redistribution of ventilation within alveoli already ventilated.
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