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Published on: September 24, 2020
Effect of different mouthwashes on ventilator-related outcomes and mortality in intensive care unit patients: A
Qianqian He1, Zengjin Peng2, Caiyun He1
1Medical College, Hunan Normal University, No. 371 Tongzipo Road, Yuelu District, Changsha, Hunan, China.
Background:
Ventilator-associated pneumonia is a common and life-threatening complication in intensive care unit (ICU) patients. Maintaining oral hygiene is crucial for reducing ventilator-associated pneumonia incidence. Various mouthwash solutions are used for oral care in ICU settings, but their comparative effectiveness remains unclear. This study aims to systematically evaluate and compare the efficacy and safety of commonly used mouthwashes for oral care in mechanically ventilated ICU patients.
Methods:
We searched PubMed, Web of Science, Embase, and Cochrane Library for randomised controlled trials (RCTs) comparing saline, chlorhexidine, sodium bicarbonate, oxidising agents, herbal extracts, and povidone-iodine for oral care in ventilated ICU patients. Outcomes included ventilator-associated pneumonia incidence, ICU mortality, duration of ventilation, and Escherichia coli fixed value. A network meta-analysis (NMA) was conducted to synthesise direct and indirect evidence. This study is registered with the International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023120028.
Results:
FourteenRCTs with 1644 participants were included. Oxidising agents showed a trend towards reducing the incidence of VAP compared to the control group (risk ratio: 0.24, 95% confidence interval: 0.05-1.10). Administration of saline was associated with a notable reduction in ICU mortality (risk ratio: 0.18, 95% confidence interval: 0.04-0.88) versus no mouthwash. No significant differences were observed in the duration of mechanical ventilation between chlorhexidine, povidone-iodine, and the control group.
Conclusions:
Antimicrobial mouthwashes, especially chlorhexidine, pose potential risks in ICU patients; oxidising solutions demonstrate relative safety. Saline solution emerges as a promising alternative, associated with a significant reduction in mortality rates. However, the need for large, high-quality RCTs remains paramount to substantiate these findings and establish evidence-based oral-care protocols in ICU settings.
Registration:
This study is registered with the International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023120028.
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