Effect of oral hygiene interventions on opportunistic pathogens in patients after stroke

Dysphagia after stroke: research advances in treatment interventions

After a stroke, most patients have dysphagia, which can lead to aspiration pneumonia, malnutrition, and adverse functional outcomes. Protective interventions aimed at reducing these complications remain the cornerstone of treatment. Dietary adjustments and oral hygiene help mitigate the risk of aspiration pneumonia, and nutritional supplementation, including tube feeding, might be needed to prevent malnutrition. Rehabilitative interventions aim to enhance swallowing function, with different behavioural strategies showing promise in small studies. Investigations have explored the use of pharmaceutical agents such as capsaicin and other Transient-Receptor-Potential-Vanilloid-1 (TRPV-1) sensory receptor agonists, which alter sensory perception in the pharynx. Neurostimulation techniques, such as transcranial direct current stimulation, repetitive transcranial magnetic stimulation, and pharyngeal electrical stimulation, might promote neuroplasticity within the sensorimotor swallowing network. Further advancements in the understanding of central and peripheral sensorimotor mechanisms in patients with dysphagia after a stroke, and during their recovery, will contribute to optimising treatment protocols.

Nondrug Intervention for Opportunistic Infections in Individuals With Hematological Malignancy: Systematic Review

BACKGROUND

Hematological malignancies disturb the blood, lymph nodes, and bone marrow. Taking medications for treating opportunistic infections (OIs) in these individuals may enhance the risk of medication interaction as well as adverse drug reactions.

OBJECTIVE

This review aims to evaluate the effectiveness of nondrug interventions in reducing OIs among patients with hematological cancers.

METHODS

The PubMed, CENTRAL (Cochrane Central Register of Controlled Trials), and Embase databases were searched on December 26, 2022, for all randomized controlled trials (RCTs). The primary endpoint was OIs. The quality of included studies was assessed by the Cochrane Risk-of-Bias tool.

RESULTS

A total of 6 studies were included in this review with 4 interventions: (1) types of mouthwash received, (2) presence of coating on central venous catheters (CVCs), (3) use of well-fitted masks, and (4) types of diet consumed. The results were presented in 8 different comparisons: (1) chlorhexidine-nystatin versus saline mouth rinse, (2) chlorhexidine versus saline mouth rinse, (3) nystatin versus saline mouth rinse, (4) chlorhexidine silver sulfadiazine-coated CVCs versus uncoated catheters, (5) well-fitted masks versus no mask, (6) amine fluoride-stannous fluoride versus sodium fluoride mouthwash, (7) low-bacterial diet versus standard hospital diet, and (8) herbal versus placebo mouthwash. No clear differences were reported in any of the outcomes examined in the first 3 comparisons. There were also no clear differences in the rate of catheter-related bloodstream infection or insertion site infection between the use of chlorhexidine silver sulfadiazine-coated CVCs versus uncoated catheters in the patients. Further, no significant differences were seen between patients who used a well-fitted mask and those without a mask in the incidence of OI. The all-cause mortality and mortality due to OI were similar between the 2 groups. There was no clear difference in all-cause mortality, although common adverse effects were reported in patients who used sodium fluoride mouthwash compared with those using amine fluoride-stannous fluoride mouthwash. There was no evidence of any difference in the incidence of possible invasive aspergillosis or candidemia between patients who consumed a low-bacterial diet and a standard diet. For the last comparison, no significant difference was seen between patients who received herbal and placebo mouthwash.

CONCLUSIONS

Very limited evidence was available to measure the effectiveness of nondrug interventions in hematological cancers. The effectiveness of the interventions included in this review needs to be evaluated further in high-quality RCTs in a dedicated setting among patients with hematological malignancies.

TRIAL REGISTRATION

PROSPERO International Prospective Register of Systematic Reviews CRD42020169186; https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=169186.

The Prevention, Diagnosis, and Treatment of Rapid Oral Health Deterioration (ROHD) among Older Adults

The world’s population is aging. Older adults are at risk for multiple chronic medical problems as they age. The management of these diseases requires these people to take a variety of medications, which may have undesired side effects. These medical issues can impact oral healthcare and result in a precipitous decline in oral health. A standardized teaching model has been developed to help novice dental practitioners learn how to access and treat oral health problems in older adults. This model is called rapid oral health deterioration (ROHD) risk assessment. The model has four steps for assessment and four categories of risk. This paper describes the components of the ROHD risk assessment, and how it can be used to prevent, diagnose and treat ROHD among older adults.

Factors that influence oral hygiene care with hospitalised stroke patients: a mixed methods study

PURPOSE

Survivors of stroke experience poor oral health during and following hospitalisation. Health professionals consistently report that oral hygiene is complex. Interventions aiming to improve the delivery of oral hygiene care by health professionals rarely use a theoretically driven approach. This study reports the first phase in an intervention development and uses the action, actor, context, target, time (AACTT) framework and theoretical domains framework (TDF) to understand who needs to do what differently in the delivery of oral hygiene care with hospitalised stroke survivors.

METHOD

Mixed methods including analysis of oral health policies and clinical guidelines using the AACTT framework, focus group discussions using the TDF and audit of 60 medical records.

RESULTS

Policies and guidelines lack specificity regarding what oral hygiene care is and who should be responsible. Health professionals have low beliefs in their capabilities and experience numerous contextual barriers. More than 40% of patients had no documented evidence of oral hygiene care.

CONCLUSION

This study used a theoretically driven approach to identify barriers and enablers to health professional delivery of oral hygiene care with stroke survivors. Interventions aiming to improve clinical practice should target beliefs about capabilities, improved access to resources and detailed oral hygiene clinical guidelines.Implications for rehabilitationSurvivors of stroke experience poor oral health which can contribute to further strokes, cardiovascular disease and mortality.Health care professionals report difficulties in delivering oral hygiene care to hospitalised stroke survivors and clinical guidelines lack detail regarding oral health assessments, interventions and training.Interventions aiming to improve the delivery of oral hygiene care should target health professional beliefs about their capabilities using strategies such as behavioural practice.Resources specific to oral hygiene care for more complex patients, including suctioning toothbrushes, should be readily accessible for health professional use.Clinical guidelines and policies on oral hygiene care should include detail about training content, assessments tools and how to adapt information for patients with complex impairments.

Oral health knowledge, attitudes, and practices and oral health-related quality of life among stroke inpatients: a cross-sectional study

BACKGROUND

Stroke patients have poor oral hygiene, experience oral dysfunction due to disease factors, and have impaired oral health-related quality of life (OHRQoL). This study aimed to determine the oral health knowledge, attitudes, and practices of stroke inpatients, assess the OHRQoL of these patients, and identify their correlates.

METHODS

In this cross-sectional study, 281 stroke inpatients aged between 22 and 88 years (57.94 ± 10.94) were conveniently selected from three hospitals in Guangzhou, China. OHRQoL was measured among these stroke patients using a Chinese version of the Oral Health Impact Profile-14 (OHIP-14). SPSS 26.0 was used for statistical analysis. Mean scores, standard deviations, and frequency distributions were obtained. The Mann-Whitney U test, Kruskal‒Wallis H test, Spearman's correlation, and multiple linear regression were used in the analysis.

RESULTS

The mean score of the patients' OHRQoL was 8.37 ± 6.67, with the highest score in the pain or discomfort of the mouth dimension (3.11 ± 2.13) and pain being the most common negative effect (13.5%). In multiple linear regression analysis, significant differences were found between patients only in age (P = 0.008), toothache (P < 0.001), self-rated oral health (P < 0.001), time since last dentist visit (P = 0.037) and reason for not having visited a dentist in the past year (P < 0.001).

CONCLUSION

The OHRQoL of patients hospitalised with stroke was moderate, and oral conditions still need to be improved. Increasing age, toothache, a longer time since the last dental visit and the reason for not visiting a dentist in the past year had a negative effect on OHRQoL, and better self-rated oral health had a positive effect. Therefore, in clinical work, greater attention should be given to elderly stroke patients, patients with poor oral status and poor oral health behaviours, timely assessment of patients' swallowing function, nutritional function, and self-care ability, and early and targeted oral health interventions and guidance.

Effects of Oral Health Interventions in People with Oropharyngeal Dysphagia: A Systematic Review

People with oropharyngeal dysphagia (OD) are at risk of developing aspiration pneumonia. However, there is no “best practice” for oral health interventions to improve swallowing-related outcomes, the incidence of aspiration pneumonia, and oral health in people with OD. Systematic literature searches were conducted for oral health interventions in OD in PubMed, Embase, CINAHL, and PsycINFO until July 2021. Original articles published in English and reporting pre- and post-intervention measurements were included. The methodology and reporting were guided by the PRISMA checklist. The methodological quality of the eight included studies was rated using the QualSyst critical appraisal tool. The oral health interventions in people with OD were diverse. This study shows little evidence that regular oral care and the free water protocol or oral disinfection reduced the incidence of aspiration pneumonia in people with OD. Oral cleaning, twice a day with an antibacterial toothpaste in combination with intraoral cleaning or the free water protocol, proved to be the most promising intervention to improve oral health. The effect of improved oral health status on swallowing-related outcomes could not be established. Increasing awareness of the importance of oral health and implementing practical oral care guidelines for people involved in the daily care of people with OD are recommended.

European Stroke Organisation and European Society for Swallowing Disorders guideline for the diagnosis and treatment of post-stroke dysphagia

Post-stroke dysphagia (PSD) is present in more than 50% of acute stroke patients, increases the risk of complications, in particular aspiration pneumonia, malnutrition and dehydration, and is linked to poor outcome and mortality. The aim of this guideline is to assist all members of the multidisciplinary team in their management of patients with PSD. These guidelines were developed based on the European Stroke Organisation (ESO) standard operating procedure and followed the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach. An interdisciplinary working group identified 20 relevant questions, performed systematic reviews and meta-analyses of the literature, assessed the quality of the available evidence and wrote evidence-based recommendations. Expert opinion was provided if not enough evidence was available to provide recommendations based on the GRADE approach. We found moderate quality of evidence to recommend dysphagia screening in all stroke patients to prevent post-stroke pneumonia and to early mortality and low quality of evidence to suggest dysphagia assessment in stroke patients having been identified at being at risk of PSD. We found low to moderate quality of evidence for a variety of treatment options to improve swallowing physiology and swallowing safety. These options include dietary interventions, behavioural swallowing treatment including acupuncture, nutritional interventions, oral health care, different pharmacological agents and different types of neurostimulation treatment. Some of the studied interventions also had an impact on other clinical endpoints such as feedings status or pneumonia. Overall, further randomized trials are needed to improve the quality of evidence for the treatment of PSD.

Interventions for improving oral health in people after stroke

BACKGROUND

For people with physical, sensory and cognitive limitations due to stroke, the routine practice of oral health care (OHC) may become a challenge. Evidence-based supported oral care intervention is essential for this patient group.

OBJECTIVES

To compare the effectiveness of OHC interventions with usual care or other treatment options for ensuring oral health in people after a stroke.

SEARCH METHODS

We searched the Cochrane Stroke Group and Cochrane Oral Health Group trials registers, CENTRAL, MEDLINE, Embase, and six other databases in February 2019. We scanned reference lists from relevant papers and contacted authors and researchers in the field. We handsearched the reference lists of relevant articles and contacted other researchers. There were no language restrictions.

SELECTION CRITERIA

We included randomised controlled trials (RCTs) that evaluated one or more interventions designed to improve the cleanliness and health of the mouth, tongue and teeth in people with a stroke who received assisted OHC led by healthcare staff. We included trials with a mixed population provided we could extract the stroke-specific data. The primary outcomes were dental plaque or denture plaque. Secondary outcomes included presence of oral disease, presence of related infection and oral opportunistic pathogens related to OHC and pneumonia, stroke survivor and providers' knowledge and attitudes to OHC, and patient satisfaction and quality of life.

DATA COLLECTION AND ANALYSIS

Two review authors independently screened abstracts and full-text articles according to prespecified selection criteria, extracted data and assessed the methodological quality using the Cochrane 'Risk of bias' tool. We sought clarification from investigators when required. Where suitable statistical data were available, we combined the selected outcome data in pooled meta-analyses. We used GRADE to assess the quality of evidence for each outcome.

MAIN RESULTS

Fifteen RCTs (22 randomised comparisons) involving 3631 participants with data for 1546 people with stroke met the selection criteria. OHC interventions compared with usual care Seven trials (2865 participants, with data for 903 participants with stroke, 1028 healthcare providers, 94 informal carers) investigated OHC interventions compared with usual care. Multi-component OHC interventions showed no evidence of a difference in the mean score (DMS) of dental plaque one month after the intervention was delivered (DMS -0.66, 95% CI -1.40 to 0.09; 2 trials, 83 participants; I2 = 83%; P = 0.08; very low-quality evidence). Stroke survivors had less plaque on their dentures when staff had access to the multi-component OHC intervention (DMS -1.31, 95% CI -1.96 to -0.66; 1 trial, 38 participants; P < 0.0001; low-quality evidence). There was no evidence of a difference in gingivitis (DMS -0.60, 95% CI -1.66 to 0.45; 2 trials, 83 participants; I2 = 93%; P = 0.26: very low-quality evidence) or denture-induced stomatitis (DMS -0.33, 95% CI -0.92 to 0.26; 1 trial, 38 participants; P = 0.69; low-quality evidence) among participants receiving the multi-component OHC protocol compared with usual care one month after the intervention. There was no difference in the incidence of pneumonia in participants receiving a multi-component OHC intervention (99 participants; 5 incidents of pneumonia) compared with those receiving usual care (105 participants; 1 incident of pneumonia) (OR 4.17, CI 95% 0.82 to 21.11; 1 trial, 204 participants; P = 0.08; low-quality evidence). OHC training for stroke survivors and healthcare providers significantly improved their OHC knowledge at one month after training (SMD 0.70, 95% CI 0.06 to 1.35; 3 trials, 728 participants; I2 = 94%; P = 0.03; very low-quality evidence). Pooled data one month after training also showed evidence of a difference between stroke survivor and providers' oral health attitudes (SMD 0.28, 95% CI 0.01 to 0.54; 3 trials, 728 participants; I2 = 65%; P = 0.06; very low-quality evidence). OHC interventions compared with placebo Three trials (394 participants, with data for 271 participants with stroke) compared an OHC intervention with placebo. There were no data for primary outcomes. There was no evidence of a difference in the incidence of pneumonia in participants receiving an OHC intervention compared with placebo (OR 0.39, CI 95% 0.14 to 1.09; 2 trials, 242 participants; I2 = 42%; P = 0.07; low-quality evidence). However, decontamination gel reduced the incidence of pneumonia among the intervention group compared with placebo gel group (OR 0.20, 95% CI 0.05 to 0.84; 1 trial, 203 participants; P = 0.028). There was no difference in the incidence of pneumonia in participants treated with povidone-iodine compared with a placebo (OR 0.81, 95% CI 0.18 to 3.51; 1 trial, 39 participants; P = 0.77). One OHC intervention compared with another OHC intervention Twelve trials (372 participants with stroke) compared one OHC intervention with another OHC intervention. There was no difference in dental plaque scores between those participants that received an enhanced multi-component OHC intervention compared with conventional OHC interventions at three months (MD -0.04, 95% CI -0.33 to 0.25; 1 trial, 61 participants; P = 0.78; low-quality evidence). There were no data for denture plaque.

AUTHORS' CONCLUSIONS

We found low- to very low-quality evidence suggesting that OHC interventions can improve the cleanliness of patient's dentures and stroke survivor and providers' knowledge and attitudes. There is limited low-quality evidence that selective decontamination gel may be more beneficial than placebo at reducing the incidence of pneumonia. Improvements in the cleanliness of a patient's own teeth was limited. We judged the quality of the evidence included within meta-analyses to be low or very low quality, and this limits our confidence in the results. We still lack high-quality evidence of the optimal approach to providing OHC to people after stroke.

Effect of daily manual toothbrushing with 0.2% chlorhexidine gel on pneumonia-associated pathogens in adults living with profound neuro-disability

Purpose

To investigate the effect of daily toothbrushing with 0.2 % chlorhexidine digluconate (CHX) on the colonization of dental plaque by pathogens associated with pneumonia amongst non-ventilated adults with a neuro-disability.

Methodology

Forty-nine patients living in long-term care were recruited. Daily toothbrushing with 0.2 % CHX gel was conducted for 48 weeks. Plaque accumulation was assessed and microbiological sampling was undertaken every 6 weeks.

Results

At any one time point at least 65 % (n=32) of subjects were found to harbour respiratory pathogens. Although there were significant changes in the proportion of individuals colonized over time with Gram-negative bacilli and Pseudomonas aeruginosa, the changes were not sustained. By week 48 there was no significant difference from the levels that had been recorded at baseline.

Conclusions

Bacteria known to be causal in pneumonia are present and colonize the dental plaque of non-ventilated adults with a neuro-disability. Daily toothbrushing with 0.2 % CHX gel did not produce a sustained reduction in intra-oral respiratory pathogen counts after 48 weeks.

Using metagenomic analysis to assess the effectiveness of oral health promotion interventions in reducing risk for pneumonia among patients with stroke in acute phase: study protocol for a randomized controlled trial

BACKGROUND

The prevalence of pneumonia complicating stroke in acute phase has a poor prognosis and higher risk for death. Oral opportunistic pathogens have been reported to be associated with pneumonia among people with compromised health. Oral health promotion is effective in reducing dental plaque among patients with stroke, which is considered as reservoirs for oral opportunistic pathogens. This study evaluates the effectiveness of oral health promotions in reducing the prevalence of pneumonia via its effects on composition and relative abundance of oral opportunistic pathogens.

METHODS/DESIGN

This study is a randomized, single-blind, parallel trial of 6 months duration. The study is being conducted at one of the largest medical teaching hospitals in Hefei, China. A total of 166 patients with stroke and free from any post-stroke complication will be recruited. After enrollment, patients will be randomized to one of the following groups: (1) oral hygiene instruction (OHI) or (2) OHI, 6-month use of powered tooth brushing, and 0.2% chlorhexidine gluconate mouth rinse (10 ml twice daily). The primary outcome is the prevalence of pneumonia complicating stroke. Patients will be monitored closely for any occurrence of pneumonia over the entire period of this trial. Oral rinse samples will be collected at baseline and multiple follow-up reviews (3, 5, 7 days, and 1, 3, 6 months after baseline). Next-generation sequencing will be employed to detect composition and relative abundances of the microorganism in the oral rinse samples. Questionnaire interviews and clinical oral examinations will be conducted at baseline and 1, 3, and 6 months after baseline.

DISCUSSION

The findings of this trial will provide evidence whether oral health promotion intervention is effective in reducing the prevalence of pneumonia complicating stroke via its effect on the oral microbiome. The analysis of the outcomes of this trial is empowered by metagenomic analysis at 16S rRNA level, which is more sensitive and comprehensive to help us detect how oral health promotion inventions affect the oral microbiome in terms of its composition, relative abundance, and interactions between species, which all may contribute to the occurrence of pneumonia complicating stroke.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04095780 . Registered on 19 September 2019.

Effect of oral hygiene programmes on oral opportunistic pathogens during stroke rehabilitation

OBJECTIVES

This study was to assess the effectiveness of a conventional oral hygiene care programme (COHCP) and an advanced oral hygiene care programme (AOHCP) on prevalence and viable counts of oral opportunistic pathogens among patients undergoing stroke rehabilitation.

METHODS

A total of 94 patients were randomized to two groups. Subjects were block randomized to either (a) COHCP: manual toothbrushing with oral hygiene instruction (OHI); or (b) AOHCP: powered toothbrushing, mouthrinsing with chlorhexidine and OHI. Prevalence and viable counts of oral opportunistic pathogens including yeasts, aerobic and facultative anaerobic gram-negative bacilli, Staphylococcus aureus, were assessed at baseline, the end of 3 and 6 months.

RESULTS

No significant difference was observed in the prevalence of oral opportunistic pathogens within each group over the clinical trial period. A significant decrease in the viable counts of S. aureus was found over the clinical trial period within AOHCP group (p < 0.05), while the viable counts of yeasts and anaerobic gram-negative bacillus (AGNB) remained stable within each group. Regression analysis failed to detect an association between intervention and the prevalence/viable counts of oral opportunistic pathogens.

CONCLUSIONS

Neither oral healthcare programme significantly affects AGNB, yeast or S. aureus over the study period in terms of prevalence and viable counts.

Dental Restoration Longevity among Geriatric and Special Needs Patients

INTRODUCTION

Although the population is aging and retaining more teeth, there is a lack of studies that address the longevity of dental restorations placed among older adults.

OBJECTIVES

This study aimed to describe the survival trajectory of dental restorations placed in an outpatient population of geriatric and adult special needs patients over a 15-y span, with particular interest in the longevity of subsequent restorations in teeth that received multiple restorations over time.

METHODS

Dental restorations of different types and sizes in patients aged ≥65 y treated between 2000 and 2014 at the University of Iowa College of Dentistry were followed until they incurred an event (i.e., restoration replacement, extraction of the tooth, or endodontic treatment of the tooth). Survival analysis and extended Cox regression models were used to generate hazard ratios for selected predictor variables.

RESULTS AND CONCLUSION

A total of 9,184 restorations were followed among 1,551 unique patients. During the follow-up period, 28.7% of these restorations incurred an event, and overall the restorations had a median life span of 6.2 y. In multivariable regression models, after controlling for sex and age, a greater number of restoration surfaces were associated with higher risks of failure, and the initial restoration recorded in the database for each participant tended to have a lower risk of failure than that of restorations that included any of those same surfaces that were placed later. This information could be helpful to older adult patients considering various restorative treatment options during the dental treatment-planning and informed consent process.

KNOWLEDGE TRANSFER STATEMENT

Informed decision making with regard to potential treatment options is an important component of health and well-being. The present study could contribute to the improved health of older adult dental patients by providing baseline information that clinicians can use as they discuss different restorative treatment options with these patients and their caregivers during the informed consent process.

A Teaching Tool for Establishing Risk of Oral Health Deterioration in Elderly Patients: Development, Implementation, and Evaluation at a U.S. Dental School

The aim of this study was to develop and evaluate a learning strategy using critical thinking to teach dental students how to assess the risk of rapid oral health deterioration (ROHD) among elderly patients. A learning guide was developed using risk factors identified in the literature and the steps that expert faculty members apply in their clinical decision making, summarized in a set of ten steps. A new system of labeling risk was developed for the elderly population, which correlates the level of risk with the amount of disease. Participants in the study were all 91 fourth-year dental students in two subsequent classes who took part in a five-week Geriatrics and Special Needs Clinic rotation in the spring of 2015 and 2016. The students were introduced to the ROHD concept and asked to use the guide in a presentation during their rotation. The students were graded on an A, G, or M scale (Applied concept, Grasped and applied concept, or Missed application of concept). Students were also asked to assess their learning experience, and their answers were thematically grouped and analyzed. For eight of the ten steps, at least 93% of the students were graded A or G. The exceptions were the steps about developing a communications plan, which was missed by 23.1%, and self-assessment, which was missed by 30.8%. Interexaminer agreement on students' applying (A + G grades) versus missing the step was moderate or high on six of ten items. Nearly all the students (98.7%) considered assessing the risk of ROHD an important or very important skill. In this study, a learning strategy to teach dental students how to assess the risk of ROHD among elderly patients was developed and successfully implemented.

Integrated oral health care for stroke patients - a scoping review

AIMS AND OBJECTIVES

To identify current evidence on the role of nurses and allied health professionals in the oral health management of stroke patients, detailing their current knowledge, attitudes and practices and the potential benefits of an integrated oral care programme.

BACKGROUND

Stroke has disabling oral health effects, such as dysphagia and hindered brushing due to upper limb hemiparesis. Together, these can increase bacterial load, increasing risk of pneumonia. In general management of stroke, nurses play a key role in early identification, assessment and referral, while occupational therapists, dieticians and speech pathologists are important in rehabilitation. While this should logically apply to the oral care of stroke patients, there is currently limited information, especially in Australia.

DESIGN

Scoping review.

METHOD

A literature search was conducted using multiple databases regarding the oral health management of stroke patients by nondental professionals, and 26 articles were reviewed.

RESULTS

The Australian National Clinical Guidelines for Stroke accentuate the need for oral care following stroke and suggest how hospital staff need to be involved. Currently, there are no Australian studies. However, international literature suggests that lack of oral health knowledge by nurses and poor patient attitude are reflected in infrequent assistance with stroke patient oral hygiene. There is limited information regarding the benefits of nursing-driven oral hygiene programme in reducing pneumonia incidence, and only few studies show that involving nurses in assisted oral care reduces plaque. There are some suggestions that involving nurses and speech pathologists in oral rehabilitation can improve dysphagia outcomes.

CONCLUSION

Managing oral health poststroke is vital, and there is a need for an appropriate integrated oral care service in Australia.

RELEVANCE TO CLINICAL PRACTICE

Nondental professionals, especially nurses, can play a key role in the poststroke oral health management of stroke patients to reduce complications, especially pneumonia.

Effectiveness of a Web-Based Health Education Program to Promote Oral Hygiene Care Among Stroke Survivors: Randomized Controlled Trial

Background

Oral hygiene care is of key importance among stroke patients to prevent complications that may compromise rehabilitation or potentially give rise to life-threatening infections such as aspiration pneumonia.

Objective

The aim of this study was to evaluate the effectiveness of a Web-based continuing professional development (CPD) program on “general intention” of the health carers to perform daily mouth cleaning for stroke patients using the theory of planned behavior (TPB).

Methods

A double-blind cluster randomized controlled trial was conducted among 547 stroke care providers across 10 hospitals in Malaysia. The centers were block randomized to receive either (1) test intervention (a Web-based CPD program on providing oral hygiene care to stroke patients using TPB) or (2) control intervention (a Web-based CPD program not specific to oral hygiene). Domains of TPB: “attitude,” “subjective norm” (SN), “perceived behavior control” (PBC), “general intention” (GI), and “knowledge” related to providing oral hygiene care were assessed preintervention and at 1 month and 6 months postintervention.

Results

The overall response rate was 68.2% (373/547). At 1 month, between the test and control groups, there was a significant difference in changes in scores of attitude (P=.004) and subjective norm (P=.01), but not in other TPB domains (GI, P=.11; PBC, P=.51; or knowledge, P=.08). At 6 months, there were significant differences in changes in scores of GI (P=.003), attitude (P=.009), SN (P<.001) and knowledge (P=.001) between the test and control groups. Regression analyses identified that the key factors associated with a change in GI at 6 months were changes in SN (beta=.36, P<.001) and changes in PBC (beta=.23, P<.001).

Conclusions

The Web-based CPD program based on TPB increased general intention, attitudes, subjective norms, and knowledge to provide oral hygiene care among stroke carers for their patients. Changing subjective norms and perceived behavioral control are key factors associated with changes in general intention to provide oral hygiene care.

Trial Registration

National Medical Research Register, Malaysia NMRR-13-1540-18833 (IIR); https://www.nmrr.gov.my/ fwbLoginPage.jsp

Factors influencing the provision of oral hygiene care following stroke: an application of the Theory of Planned Behaviour

OBJECTIVES

This study aimed to examine "intention to" and "performance of" oral hygiene care to stroke patients using the Theory of Planned Behavior.

MATERIALS AND METHODS

A large scale survey of 13 centers in Malaysia was conducted involving 806 nurses in relation to oral hygiene care intentions and practices. In addition, information on personal and environmental factors was collected.

RESULTS

The response rate was 95.6% (778/806). The domains of the Theory of Planned Behavior were significantly associated with general intention to perform oral hygiene care: attitudes (β = 0.21, p < 0.001), subjective norms (β = 0.38, p < 0.001), perceived behavior control (β = 0.04, p < 0.001); after controlling for personal and environmental factors. Approximately two-thirds (63.4%, 493) reported the performance of some form of oral hygiene care for patients. This behavior was associated with general intention scores (OR =1.13, 95%CI =1.05-1.22, p <0.01), controlling for other factors. Knowledge scores, training, access to oral hygiene guidelines and kits, as well as working ward type were identified as key factors associated with intention and practice of oral hygiene care.

CONCLUSION

The Theory of Planned Behavior provides understanding of "intention to" and "performance of" oral hygiene care to stroke patients. Several provider and environmental factors were also associated with intentions and practices. This has implications for understanding and improving the implementation of oral hygiene care in stroke rehabilitation. Implications for Rehabilitation Oral hygiene care is crucial for stroke patients as it can prevent oral health problems and potentially life threatening events (such as aspiration pneumonia). Despite oral hygiene care being relative simple to perform, it is often neglected during stroke rehabilitation. A large-scale national survey was conducted to understand "intentions to" and "performance of" oral hygiene care to stroke patients using the Theory of Planned Behavior social cognition model. These study findings may have implications and use in promoting oral hygiene care to stroke patients:i) by understanding the pathways and influences to perform oral hygiene care.ii) to conduct health promotion and health education based on behavioral models such as Theory of Planned Behavior.

Pathogenic factors in Candida biofilm-related infectious diseases

Candida albicans is a commonly found member of the human microflora and is a major human opportunistic fungal pathogen. A perturbation of the microbiome can lead to infectious diseases caused by various micro-organisms, including C. albicans. Moreover, the interactions between C. albicans and bacteria are considered to play critical roles in human health. The major biological feature of C. albicans, which impacts human health, resides in its ability to form biofilms. In particular, the extracellular matrix (ECM) of Candida biofilm plays a multifaceted role and therefore may be considered as a highly attractive target to combat biofilm-related infectious diseases. In addition, extracellular DNA (eDNA) also plays a crucial role in Candida biofilm formation and its structural integrity and induces the morphological transition from yeast to the hyphal growth form during C. albicans biofilm development. This review focuses on pathogenic factors such as eDNA in Candida biofilm formation and its ECM production and provides meaningful information for future studies to develop a novel strategy to battle infectious diseases elicited by Candida-formed biofilm.

Oral health status in patients with acquired brain injury: a systematic review

OBJECTIVE

To undertake a systematic review of the current knowledge and future perspectives regarding the status of various oral health factors, including social and behavioral aspects, in patients with acquired brain injury (ABI).

STUDY DESIGN

A structured search strategy was applied to PubMed, Embase, and Scopus electronic databases until January 2016 to identify studies presenting assessments of the oral health status of patients afflicted with any kind of ABI. The search strategy was restricted to English-language publications that enrolled patients aged more than 18 years. Studies on the association of oral health conditions and brain injury were excluded. No study was excluded based on its qualitative analysis.

RESULTS

A total of 27 studies were reviewed. Stroke was the most commonly studied ABI. Stroke patients had a higher number of missing teeth, poorer plaque and gingival index scores, and higher colonization of Candida albicans in saliva, all of which were significantly reduced after intervention. Oral health-related quality of life was poorer in patients compared to the general population.

CONCLUSION

Stroke was the most predominant brain injury condition studied in the literature, with few publications focusing on other forms of brain injury. Overall, oral health has been noted to be poor in patients with ABI, but oral hygiene and oral health-related quality of life have been found to improve when oral hygiene interventions are provided to patients.

Herpes Simplex Virus (HSV) Modulation of Staphylococcus aureus and Candida albicans Initiation of HeLa 299 Cell-Associated Biofilm

Although herpes simplex virus type-1 (HSV-1), and type-2 (HSV-2), Staphylococcus aureus and Candida albicans co-habit the oral and genital mucosa, their interaction is poorly understood. We determined the effect HSV has on bacterial and/or fungal adherence, the initial step in biofilm formation. HeLa229 cells were infected with HSV-1 (KOS) gL86 or HSV-2 (KOS) 333gJ⁻ at a multiplicity of infection (MOI) of 50 and 10. S. aureus (ATCC 25923) and/or C. albicans (yeast forms or germ tube forms) were co-incubated for 30 min (37 °C; 5 % CO₂; 5:1 organism: HeLa cell ratio; n = 16) with virus-infected HeLa cells or uninfected HeLa cell controls. Post-incubation, the monolayers were washed (3x; PBS), lysed (RIPA), and the lysate plated onto Fungisel and/or mannitol salts agar for standard colony count. The level of HeLa-associated S. aureus was significantly decreased (P < 0.05) for both HSV-1- and HSV-2-infected cells, as compared to virus-free HeLa cell controls (38 and 59 % of control, respectively). In contrast, HSV-1 and HSV-2 significantly (P < 0.05) enhanced HeLa cell association of C. albicans yeast forms and germ tube approximately two-fold, respectively. The effect of S. aureus on germ tube and yeast form adherence to HSV-1- and HSV-2-infected cells was specific for the Candida phenotype tested. Our study suggests that HSV, while antagonist towards S. aureus adherence enhances Candida adherence. Furthermore, the combination of the three pathogens results in S. aureus adherence that is either unaffected, or partially restored depending on both the herpes viral species and the fungal phenotype present.

Oral care post stroke: a scoping review

Health concerns post stroke may be the result of, or exacerbated by, neglected oral health care (OHC). However, OHC may be challenging post stroke due to hemiparesis, hemiplegia, a lack of coordination, and/or cognitive deficits. The objective of this study was to conduct a scoping review and summarise the current state of knowledge pertaining to OHC post stroke. A literature search was conducted using the multiple databases (MEDLINE, CINAHL, EMBASE, etc.). Combinations of multiple keywords were searched: oral, dental, health, care, hygiene, teeth, dentures, tooth brushing, stroke, cardiovascular health and cardiovascular disease. A grey literature search was also conducted. Articles included were those published in English between 1970 and July 2013, which focused on at least one aspect of OHC among a stroke population. For clinical trials, ≥50% of the sample must have sustained a stroke. In total, 60 articles met inclusion and focused on three primary area: (i) OHC Importance/Stroke Implications; (ii) Current Research; and (iii) Current Practice. It was found that OHC concerns are mainly related to mastication, dysphagia/nutrition, hygiene, prostheses and quality of life. Research indicates that there is limited specialised and individual care provided, and there are few assessment tools, guidelines and established protocols for oral health that are specific to the stroke population. Further, dental professionals' and nurses' knowledge of OHC is generally inadequate; hence, proper education for health professionals in acute and rehabilitation settings, patients, and caregivers has been discussed.

Pilot study of an oral care protocol on poststroke survivors

PURPOSE

The pilot study purpose was to determine the effects of a new standardized oral care protocol (intervention) to usual care practices (control) in poststroke patients.

DESIGN

This study is a randomized controlled clinical trial.

METHOD

Fifty-one subjects were enrolled. Subjects in the intervention group received oral care twice a day including tooth brushing, tongue brushing, flossing, mouth rinse, and lip care while control patients received usual oral care.

FINDINGS

Subjects in the control and intervention groups showed improvement in their oral health assessments, swallowing abilities and oral intake. There were no significant differences between the two groups. Although not statistically significant, overall prevalence of methicillin-resistant Staphylococcus aureus and methicillin-sensitive Staphylococcus aureus colonization in the control group almost doubled (from 4.8% to 9.5%), while colonization in the intervention group decreased (from 20.8% to 16.7%).

CONCLUSIONS/CLINICAL RELEVANCE

These findings demonstrate the importance of oral care in the poststroke patient with dysphagia.