INTENSIV-News
Early physical and occupational therapy in mechanically ventilated, critically ill patients: A randomised controlled trial.
Schweickert
WD, Pohlman MC, Pohlman AS, et al. Lancet
2009; 373:1874-82
Department
of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine,
University of Pennsylvania, Philadelphia, PA, USA.
BACKGORUND:
Long-term complications of critical illness include intensive care unit
(ICU)-acquired weakness and neuropsychiatric disease. Immobilisation
secondary to sedation might potentiate these problems. We assessed the
efficacy of combining daily interruption of sedation with physical and
occupational therapy on functional outcomes in patients receiving
mechanical ventilation in intensive care.
METHODS: Sedated adults
(>/=18 years of age) in the ICU who had been on mechanical
ventilation for less than 72 h, were expected to continue for at least
24 h, and who met criteria for baseline functional independence were
eligible for enrolment in this randomised controlled trial at two
university hospitals. We randomly assigned 104 patients by
computer-generated, permuted block randomisation to early exercise and
mobilisation (physical and occupational therapy) during periods of daily
interruption of sedation (intervention; n=49) or to daily interruption
of sedation with therapy as ordered by the primary care team (control;
n=55). The primary endpoint - the number of patients returning to
independent functional status at hospital discharge - was defined as
the ability to perform six activities of daily living and the ability to
walk independently. Therapists who undertook patient assessments were
blinded to treatment assignment. Secondary endpoints included duration
of delirium and ventilator-free days during the first 28 days of
hospital stay. Analysis was by intention to treat. This trial is
registered with ClinicalTrials.gov, number NCT00322010.
FINDINGS: All
104 patients were included in the analysis. Return to independent
functional status at hospital discharge occurred in 29 (59%) patients in
the intervention group compared with 19 (35%) patients in the control
group (p=0.02; odds ratio 2.7 [95% CI 1.2-6.1]). Patients in the
intervention group had shorter duration of delirium (median 2.0 days,
IQR 0.0-6.0 vs 4.0 days, 2.0-8.0; p=0.02) and more ventilator-free days
(23.5 days, 7.4-25.6 vs 21.1 days, 0.0-23.8; p= 0.05) during the
28-day-follow-up-period than did controls. There was one serious adverse
event in 498 therapy sessions (desaturation less than 80%).
Discontinuation of therapy as a result of patient instability occurred
in 19 (4%) of all sessions, most commonly for perceived
patient-ventilator asynchrony.
INTERPRETATION: A strategy for
whole-body rehabilitation -consisting of interruption of sedation and
physical and occupational therapy in the earliest days of critical
illness-was safe and well tolerated, and resulted in better functional
outcomes at hospital discharge, a shorter duration of delirium, and more
ventilator - free days compared with standard care.
Die Tatsache, dass Sedierung und Bettlägerigkeit auch bei Gesunden rasch
zum Verlust von Muskelsubstanz und Kraft führt, rechtfertigt den
Studienansatz, Intensivpatienten bereits 72 Stunden nach der Intubation
wieder aufzuwachen zu lassen und mit der Mobilisierung zu beginnen. Ob
die kritische Krankheit der Patienten mit schweren
Oxygenierungsstörungen dieses Vorgehen ohne Gefährdungen des Patienten
ermöglicht, ist nur in wenigen kontrollierten Studien untersucht worden.
Die vorliegende Studie aus den USA zeigt, dass die aktive Mobilisierung
des Intensivpatienten bis zum Aufsetzen die Sicherheit der Patienten
nicht gefährdet. Sogar ein aktives Training mit dem Bettfahrrad, das auf
die Beibehaltung der Beinkraft abzielt, kann von den meisten Patienten
ohne Desaturationen oder Kreislaufprobleme toleriert werden (Burtin C, Crit Care Med 2009; 37:2499).
Auch führte diese Strategie einer frühzeitigen Trainingstherapie, die
auch ein Absetzen der Sedierung beinhaltete, gegenüber dem bislang
üblichen Vorgehen zu einem verbesserten funktionellen Status, zu einer
Verkürzung der Dauer des Intensiv-Delirs und zu einer verminderten
Beatmungsdauer.
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