Intensive care medicine · 2001
Mechanical ventilation in patients with acute ischemic stroke: survival and outcome at one year.
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Santoli F, De Jonghe B, Hayon J, Tran B, Piperaud M, Merrer J, Outin H
Аннотация
OBJECTIVE: To assess the prognosis of patients with acute ischemic stroke who require mechanical ventilation and to determine early factors influencing mortality.
DESIGN: Prospective observational study.
SETTING: Medical intensive care unit with a cerebrovascular emergency unit in a university-affiliated hospital.
PATIENTS: Fifty-eight consecutive patients (mean age 65+/-13 years) requiring mechanical ventilation in the early course of an acute ischemic stroke.
MEASUREMENTS AND RESULTS: Clinical data were recorded before intubation according to a standardized procedure. Mortality and functional outcome were assessed after a 1-year follow-up. Mechanical ventilation was started within 48 h after admission in 53 patients (91.4%). The mean duration of ventilation was similar in survivors (9.7+/-9.0 days) and non-survivors (8.6+/-8.7 days). Mortality was 72.4% at 1 year. Among the 16 survivors, none were in a persistent vegetative state and 11 had a Barthel index of 60, reflecting good functional status. Bilateral absence of corneal reflex and bilateral absence of pupillary light reflex had a positive predictive value of death of 1 (95% CI 0.78-1.00 and 0.74-1.00, respectively). After Cox regression analysis, presence of stupor or coma (OR 2.6, 95% CI 1.5-5.0), bilateral absence of corneal reflex before intubation (OR 3.4, 95% CI 1.4-8.7) and presence of ischemic cardiopathy (OR 2.8, 95% CI 1.4-5.5) were independent predictors of mortality.
CONCLUSIONS: Systematic withholding of endotracheal intubation in patients with AIS is not recommended. Careful and rigorous neurologic examination, including assessment of brain stem reflexes, might help to identify patients with a very high probability of death despite mechanical ventilation.
DESIGN: Prospective observational study.
SETTING: Medical intensive care unit with a cerebrovascular emergency unit in a university-affiliated hospital.
PATIENTS: Fifty-eight consecutive patients (mean age 65+/-13 years) requiring mechanical ventilation in the early course of an acute ischemic stroke.
MEASUREMENTS AND RESULTS: Clinical data were recorded before intubation according to a standardized procedure. Mortality and functional outcome were assessed after a 1-year follow-up. Mechanical ventilation was started within 48 h after admission in 53 patients (91.4%). The mean duration of ventilation was similar in survivors (9.7+/-9.0 days) and non-survivors (8.6+/-8.7 days). Mortality was 72.4% at 1 year. Among the 16 survivors, none were in a persistent vegetative state and 11 had a Barthel index of 60, reflecting good functional status. Bilateral absence of corneal reflex and bilateral absence of pupillary light reflex had a positive predictive value of death of 1 (95% CI 0.78-1.00 and 0.74-1.00, respectively). After Cox regression analysis, presence of stupor or coma (OR 2.6, 95% CI 1.5-5.0), bilateral absence of corneal reflex before intubation (OR 3.4, 95% CI 1.4-8.7) and presence of ischemic cardiopathy (OR 2.8, 95% CI 1.4-5.5) were independent predictors of mortality.
CONCLUSIONS: Systematic withholding of endotracheal intubation in patients with AIS is not recommended. Careful and rigorous neurologic examination, including assessment of brain stem reflexes, might help to identify patients with a very high probability of death despite mechanical ventilation.