Weaning from mechanical ventilation with pressure support in patients failing a T-tube trial of spontaneous breathing.

OBJECTIVE: Evidence that PS may facilitate weaning from mechanical ventilation (MV), although not confirmed by randomized trials, prompted us to investigate whether patients could be weaned with PS after failing a T-tube trial. DESIGN AND SETTING: This was a prospective, non-randomized study in two French intensive care units. PATIENTS AND PARTICIPANTS: One hundred eighteen patients were enrolled and underwent a T-tube trial, after which 87 were extubated. Thirty-one underwent a further trial with PS, after which 21 were extubated. INTERVENTIONS: All patients under MV >24 h meeting the criteria for a weaning test underwent a 30-min T-tube trial. If this was successful, they were immediately extubated. Otherwise, a 30-min trial with +7 cm H2O PS was initiated with an individualized pressurization slope and trigger adjustment. If all weaning criteria were met, the patients were extubated; otherwise, MV was reinstated. MEASUREMENTS AND RESULTS: The extubation failure rate at 48 h did not differ significantly between the groups: 11/87 (13%) versus 4/21 (19%), P=0.39. The groups were comparable with regard to endotracheal tube diameter, MV duration, the use of non-invasive ventilation (NIV) after extubation, initial severity score, age and underlying pathology, except for COPD. A significantly higher percentage of patients with COPD was extubated after the trial with PS (8/21-38%) than after a single T-tube trial (11/87-13%) (P=0.003). CONCLUSIONS: Of the patients, 21/118 (18%) could be extubated after a trial with PS, despite having failed a T-tube trial. The reintubation rate was not increased. This protocol may particularly benefit patients who are most difficult to wean, notably those with COPD.

Symptoms of anxiety and depression in family members of intensive care unit patients before discharge or death. A prospective multicenter study.

STUDY OBJECTIVES: More than two thirds of family members visiting intensive care unit (ICU) patients have symptoms of anxiety or depression during the first days of hospitalization. Identifying determinants of these symptoms would help caregivers support families at patient discharge or when death is imminent. DESIGN AND SETTING: Prospective multicenter study including 78 ICUs (1184 beds) in France. PARTICIPANTS: Family members completed the Hospital Anxiety and Depression Scale on the day of patient discharge or death to allow evaluation of the prevalence and potential factors associated with symptoms of anxiety and depression. RESULTS: Three hundred fifty-seven patients were included in the study, and 544 family members completed the Hospital Anxiety and Depression Scale. Symptoms of anxiety and depression were found in 73.4% and 35.3% of family members, respectively; 75.5% of family members and 82.7% of spouses had symptoms of anxiety or depression (P = .007). Symptoms of depression were more prevalent in family members of nonsurvivors (48.2%) than of survivors (32.7%) (P = .008). The multivariate model identified 3 groups of factors associated with symptoms: (1) patient-related: severity as assessed by the Simplified Acute Physiology Score II (odds ratio [OR] 1.017 per point) and patient age (OR 0.984 per year) predicted anxiety, and Simplified Acute Physiology Score II (OR, 1.015 per point), patient death (OR 2.092), and patient age (OR 0.981) predicted depression; (2) family-related: the spouse predicted anxiety (OR 2.085); and (3) ICU-related: a room with more than 1 bed (OR 1.539) predicted depression. CONCLUSION: The prevalence of symptoms of anxiety and depression remains high at the end of the ICU stay, whether the patient is well enough to be discharged or is near death.

Prognostic factors in acute respiratory distress syndrome: a retrospective multivariate analysis including prone positioning in management strategy.

OBJECTIVE: To investigate the prognostic factors in acute respiratory distress syndrome (ARDS) patients focusing on the use of prone positioning (PP). DESIGN AND SETTING: Retrospective study conducted in an intensive care unit of a university hospital. PATIENTS: All consecutive mechanically ventilated ARDS patients surviving on day 7 after the diagnosis of ARDS. METHODS: The study included all ARDS patients who survived more than 7 days after ARDS diagnosis between January 1995 and December 2002. Demographic and respiratory variables were collected on day 1, and the management of ARDS was analyzed during the first 7 days ( n=125). We performed a univariate analysis and a stepwise logistic regression analysis comparing survivors and nonsurvivors on day 28 and at 2 and 6 months. RESULTS: Mortality rates on day 28 and at 2 and 6 months were 21.6%, 32%, and 44% respectively. A SAPS II score less than 49, McCabe score, and the use of PP introduced in the first 7 days of ARDS management appeared to be independently correlated with a decrease in mortality. CONCLUSIONS: The SAPS II score, the McCabe score, and use of PP are independently correlated with the outcome in ARDS patients.

Half the family members of intensive care unit patients do not want to share in the decision-making process: a study in 78 French intensive care units.

OBJECTIVE: To evaluate the opinions of intensive care unit staff and family members about family participation in decisions about patients in intensive care units in France, a country where the approach of physicians to patients and families has been described as paternalistic. DESIGN: Prospective multiple-center survey of intensive care unit staff and family members. SETTING: Seventy-eight intensive care units in university-affiliated hospitals in France. PATIENTS: We studied 357 consecutive patients hospitalized in the 78 intensive care units and included in the study starting on May 1, 2001, with five patients included per intensive care unit. INTERVENTIONS: We recorded opinions and experience about family participation in medical decision making. Comprehension, satisfaction, and Hospital Anxiety and Depression Scale scores were determined in family members. MEASUREMENTS AND MAIN RESULTS: Poor comprehension was noted in 35% of family members. Satisfaction was good but anxiety was noted in 73% and depression in 35% of family members. Among intensive care unit staff members, 91% of physicians and 83% of nonphysicians believed that participation in decision making should be offered to families; however, only 39% had actually involved family members in decisions. A desire to share in decision making was expressed by only 47% of family members. Only 15% of family members actually shared in decision making. Effectiveness of information influenced this desire. CONCLUSION: Intensive care unit staff should seek to determine how much autonomy families want. Staff members must strive to identify practical and psychological obstacles that may limit their ability to promote autonomy. Finally, they must develop interventions and attitudes capable of empowering families.