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Revista Brasileira de Terapia Intensiva

versión impresa ISSN 0103-507X


FREITAS, Eliane Regina Ferreira Sernache de et al. Effects of passive mobilization on acute hemodynamic responses in mechanically ventilated patients. Rev. bras. ter. intensiva [online]. 2012, vol.24, n.1, pp.72-78. ISSN 0103-507X.

OBJECTIVE: To assess the effects of passive mobilization on acute hemodynamic responses in mechanically ventilated patients. METHODS: This cross-sectional, quantitative, observational study enrolled patients who were admitted to the intensive care unit, sedated and mechanically ventilated. The infusion of sedative and analgesic drugs aimed to maintain a Ramsay scale sedation level of 4 to 6. Passive mobilization consisted of hip and knee flexion-extension movements for five minutes. After 10 minutes of rest, an additional five minutes of flexion-extension passive movements was performed for the shoulders. Hemodynamic assessments (heart rate and systolic, diastolic and mean blood pressure) were performed one minute before the mobilization protocol and one minute after each phase. The double product and myocardial oxygen consumption were calculated using appropriate formulas. RESULTS: A total of 13 patients (69.2% male, with a mean age of 69.1 ± 15.8 years) were admitted from June to December, 2011. Passive mobilization led to statistically significant increases in heart rate, double product and myocardial oxygen consumption. However, mean blood pressure was not significantly altered. CONCLUSIONS: Our results suggest that passive mobilization of mechanically ventilated and sedated patients is safe and provides beneficial effects on acute hemodynamic parameters, particularly heart rate, although mean blood pressure is not significantly altered

Palabras clave : Hemodynamics; Intensive care units; Artificial respiration.

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