Effects of oral care combined with neuromuscular electrical stimulation on clinical outcomes in the acute phase of acute ischemic stroke: a pilot randomized controlled trial.

This was a pilot study with only 35 randomized participants, so it is underpowered to detect small differences and cannot confirm pneumonia prevention. Outcome assessors were not blinded, and the groups had visibly different treatment, so ratings could be biased. The study was done at one hospital in Taiwan, so results may not transfer to other staffing models or populations. People who needed ICU care for thrombolysis or thrombectomy were excluded, so findings do not apply to the most severe acute stroke patients. Usual care oral hygiene was not standardized or supervised; nursing logs showed an average brushing frequency of 0.63 times per day, so the control group may have received inconsistent care. Swallowing was assessed only by bedside screening; no instrumental tests such as video fluoroscopy or endoscopy were done, so actual aspiration physiology was not measured. Oral and salivary microbiota were not assessed, so the mechanism linking oral care to pneumonia risk was not tested. Baseline groups differed in age and coronary artery disease, and the analysis adjusted for these factors.

The National Science and Technology Council supported this work. The supplied text does not report additional author conflicts.

Do not conclude that electrical stimulation prevents stroke-associated pneumonia or adds benefit to oral care. This was a pilot, the pneumonia result was secondary, and the combined group also received oral care, so the study cannot separate the effect of stimulation from oral care.