Psychological Outcomes in Family Members of Patients With Acute Respiratory Failure: Does Inter-ICU Transfer Play a Role?

BACKGROUND: Family members of patients admitted to the ICU experience a constellation of sequelae described as postintensive care syndrome-family. The influence that an inter-ICU transfer has on psychological outcomes is unknown. RESEARCH QUESTION: Is inter-ICU transfer associated with poor psychological outcomes in families of patients with acute respiratory failure? STUDY DESIGN AND METHODS: Cross-sectional observational study of 82 families of patients admitted to adult ICUs (tertiary hospital). Data included demographics, admission source, and outcomes. Admission source was classified as inter-ICU transfer (n = 39) for patients admitted to the ICU from other hospitals and direct admit (n = 43) for patients admitted from the ED or the operating room of the same hospital. We used quantitative surveys to evaluate psychological distress (Hospital Anxiety and Depression Scale [HADS]) and posttraumatic stress (Post-Traumatic Stress Scale; PTSS) and examined clinical, family, and satisfaction factors associated with psychological outcomes. RESULTS: Families of transferred patients travelled longer distances (mean ± SD, 109 ± 106 miles) compared with those of patients directly admitted (mean ± SD, 65 ± 156 miles; P ≤ .0001). Transferred patients predominantly were admitted to the neuro-ICU (64%), had a longer length of stay (direct admits: mean ± SD, 12.7 ± 9.3 days; transferred patients: mean ± SD, 17.6 ± 9.3 days; P < .01), and a higher number of ventilator days (direct admits: mean ± SD, 6.9 ± 8.6 days; transferred: mean ± SD, 10.6 ± 9.0 days; P < .01). Additionally, they were less likely to be discharged home (direct admits, 63%; transferred, 33%; P = .08). In a fully adjusted model of psychological distress and posttraumatic stress, family members of transferred patients were found to have a 1.74-point (95% CI, -1.08 to 5.29; P = .30) higher HADS score and a 5.19-point (95% CI, 0.35-10.03; P = .03) higher PTSS score than those of directly admitted family members. INTERPRETATION: In this exploratory study, posttraumatic stress measured by the PTSS was higher in the transferred families, but these findings will need to be replicated to infer clinical significance.

Transfer times and outcomes in patients with ST-segment-elevation myocardial infarction undergoing interhospital transfer for primary percutaneous coronary intervention: APEX-AMI insights.

BACKGROUND: Transfer delays for primary percutaneous coronary intervention may increase mortality in patients with ST-segment-elevation myocardial infarction. We examined the association between door 1-to-door 2 (D1D2) time, a measure capturing the entire transfer process, and outcomes in patients undergoing interhospital transfer for primary percutaneous coronary intervention. METHODS AND RESULTS: We evaluated the relationship between D1D2 time and the 90-day incidence of death, shock, and heart failure in the subset of 2075 (36.1%) of 5745 patients who underwent interhospital transfer for primary percutaneous coronary intervention in the Assessment of Pexelizumab in Acute Myocardial Infarction trial. There was no significant difference in the 90-day incidence of death, shock, and heart failure between the transferred and the nontransferred groups (10.3% versus 10.2%; P = 0.89). The median difference in symptom-to-balloon time between the 2 groups was 45 minutes (229 versus 184; P<0.001). The primary outcome per 30-minute delay was higher for patients with a D1D2 time ≤150 minutes (hazard ratio, 1.19: 95% confidence interval, 1.06 to 1.33; P = 0.004) but not for D1D2 times >150 minutes (hazard ratio, 0.99: 95% confidence interval, 0.96 to 1.02; P = 0.496). The association between longer D1D2 time and worsening outcome was no longer statistically significant after multivariable adjustment. CONCLUSIONS: Longer transfer times were associated with higher rate of death, shock, and heart failure among patients undergoing interhospital transfer from primary percutaneous coronary intervention, although this difference did not persist after adjusting for baseline characteristics.

A device for long term, in vitro loading of three-dimensional natural and engineered tissues.

In vitro studies of mechanical loads applied to three-dimensional tissue constructs are important to the design and production of functional, engineered bone tissue. This study reports the development and characterization of a mechanical device capable of subjecting a three-dimensional section of natural or engineered tissue to precise, reproducible four-point bending deformations over a range of programmable magnitudes and frequencies. To test the biological and mechanical capabilities of the system, a low-cycle (360 cycles/day), medium-range strain (2500 microstrain), long-term (16 day) loading regime was applied to rat bone marrow stromal cells cultured in porous DL-polylactic acid scaffolds. Cells proliferated in culture throughout the experiment, and with time showed an increase in alkaline phosphatase expression per cell. Calcium and phosphorus mineral deposition by the unloaded group was significantly greater (p<0.05) than that deposited by the loaded group. The molar ratio of calcium to phosphorus in the unloaded group (0.94:1) was significantly greater (p<0.05) than that of the loaded group (0.41:1). The loading device presented here is a tool which can be used to help elucidate contributions of mechanical loading/fatigue on biodegradable materials, as well as study the effects of mechanical loading on natural or engineered tissues in vitro.