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  • Title: The effect of reverse Trendelenburg position versus semi-recumbent position on respiratory parameters of obese critically ill patients: A randomised controlled trial.
    Author: Hassan EA, Baraka AAE.
    Journal: J Clin Nurs; 2021 Apr; 30(7-8):995-1002. PubMed ID: 33432600.
    Abstract:
    AIMS AND OBJECTIVES: To investigate the effect of reverse Trendelenburg position versus semi-recumbent position on respiratory parameters of obese critically ill patients. BACKGROUND: Reverse Trendelenburg position is recommended for obese patients; however, the effect among critically ill patients, especially those on mechanical ventilation, has limited study. DESIGN: Randomised, controlled pretest, repeated post-test trial with two parallel groups. METHODS: The study started from 13 January 2020-12 March 2020. Adult critically ill patients with a body mass index ≥30 were randomly assigned by computer-generated randomisation to either reverse Trendelenburg position group (intervention) or semi-recumbent position group (active comparator control). Outcome measures were ventilation parameters (dynamic compliance, partial pressure of arterial carbon dioxide and minute volume) and oxygenation parameters (hypoxaemic index and partial pressure of arterial oxygen). Measures were assessed immediately before positioning and after positioning in 10 minutes, 20 minutes and 30 minutes. CONSORT checklist was used to report the current study. SETTINGS: Four general intensive care units. RESULTS: One hundred and ten patients (55 patients in each group) completed the study. The reverse Trendelenburg position group had a higher improvement than the semi-recumbent position group as estimated by mean differences in their dynamic compliance, minute volume, partial pressure of carbon dioxide, partial pressure of oxygen and hypoxaemic index. CONCLUSION: Reverse Trendelenburg position improves obese patients' respiratory parameters more than semi-recumbent position. RELEVANCE TO CLINICAL PRACTICE: This study directs nurses to use the reverse Trendelenburg position, which is an important position for enhancing the parameters of ventilation and oxygenation of obese mechanically ventilated patients.
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