Aspiration pneumonia in nursing literature-a mapping review

Introduction

Aspiration pneumonia (AP) is an infection of the lungs caused by inhalation of material. The reported incidences vary across literature and clinical populations and is associated with high morbidity and mortality. Management of AP is best carried out by a multidisciplinary team.

Methods

This aim of this review was to collate and describe the available evidence on AP to develop a greater understanding of the concept of AP as it is represented in the nursing literature. As a collaborative team, we undertook the six stages of a systematic mapping review. We searched for the term aspiration pneumonia in 200 peer reviewed nursing journals across 10 databases, over a ten-year period (2013-2023).

Results

In this review, 293 papers were coded. Dysphagia, oral health and tube feeding emerged as the most frequent risk factors for AP, and the most reported factors for preventing this condition. Mortality was the most commonly described consequence of AP, followed by hospitalisations and morbidity. Multiple management approaches were reported including dysphagia assessment, risk evaluation, oral care and texture modification of food and fluids. The role of nurses and interprofessional collaborations were described.

Discussion

Despite limited evidence related to the topic of AP in the nursing literature, the complexity of the causes, prevention, management and consequences of AP emerged. Certain factors, such as dysphagia, oral health, and tube feeding, were described under prevention, cause and management of AP. The importance of multidisciplinary approach in the management and prevention of AP was presented.

A randomized controlled study investigating the efficacy of electro-acupuncture and exercise-based swallowing rehabilitation for post-stroke dysphagia: Impacts on brainstem auditory evoked potentials and cerebral blood flow

BACKGROUND

Swallowing rehabilitation behavioral therapy and traditional Chinese acupuncture therapy are widely used in the treatment of post-stroke dysphagia (PSD). This study investigated the therapeutic effect of electro-acupuncture combined with exercise-based swallowing rehabilitation on PSD and its effect on brainstem auditory evoked potential (BAEP) and cerebral blood flow.

METHODS

The 120 PSD patients were divided into 2 groups (n = 60 each) by simple random grouping method, that is, an experimental and control group, receiving routine swallowing training, or additional intervention with electro-acupuncture at a frequency of 5 times/week. Data in swallowing function, BAEP, and cerebrovascular color Doppler ultrasound parameters were collected before treatment, as well as after treatment. An intergroup comparison was conducted using an independent sample t-test, and an intra-group comparison was conducted among different time points using a paired t-test. The data were analyzed using the SPSS Statistics 22.0 software; P < .05 was considered statistically significant.

RESULTS

The therapeutic effects were significantly better in the experimental group compared with the control group (P < .05). The standard swallowing function assessment scores were significantly lower in both groups after treatment (P < .05), and the score in the observation group was lower than in the control group (P < .05). The peak latency of BAEP waves III and IV, and the inter-peak latency between peaks III to V and I to V in the 2 groups changed significantly (P < .05). The peak systolic velocity (PSV), end-diastolic velocity (EDV), and mean velocity (MV) were significantly increased in both groups after treatment (P < .05). The pulsatility index decreased significantly in both groups (P < .05), and the PSV, EDV, and MV were higher in the experimental group than in the control group (P < .05).

CONCLUSION

Electro-acupuncture, combined with swallowing training in the treatment of Post-stroke Dysphagia, effectively improved cerebral microcirculation and conduction velocity, enhanced the motor function of swallowing muscles, and promoted the recovery of swallowing function.

Bridging Allied Health Professional Roles to Improve Patient Outcomes in Rural and Remote Australia: A Descriptive Qualitative Study

Purpose

Australia’s rural and remote populations experience inequality of access to healthcare, with demand exceeding capacity for delivery of health services, often due to a maldistribution of the health workforce. A strategy which may overcome barriers to accessing adequate healthcare includes implementation of interdisciplinary collaborative teams, identified as a successful method of healthcare delivery. This study thus aimed to explore interdisciplinary allied health collaborative practice in a rural community.

Methods

Role theory, as a philosophical perspective, was used to explore role perceptions and the potential for interdisciplinary collaboration between pharmacists and allied health professionals including dieticians/public health nutritionists, speech pathologists, occupational therapists, and physiotherapists, by conducting 29 interviews in a rural community. All interviews were transcribed verbatim, coded, and categorised into emerging themes.

Results

Five constructs of role theory were used to describe the data: role identity, role overload, role sufficiency, role conflict, and role ambiguity. Participants identified as rural generalists and health promoters, who work within innovative and adaptive healthcare settings. Role overload was reported as considerable due to high demand for services and a lack of resources in rural and remote regions, resulting in poor role sufficiency. Overall, there was a low level of role conflict, and participants were highly in favor of interprofessional collaboration; however, uncertainty of the pharmacist’s role (role ambiguity) was a major barrier identified. Health professionals with more years in practice provided few examples of how they would utilise a pharmacist in their practice, although these gave valuable insight into the potential integration of a pharmacist into an interdisciplinary health team, with allied health professionals.

Conclusion

This study has applied role theory providing a greater understanding of the enablers and barriers of pharmacists working within interdisciplinary allied health teams and highlighting opportunities to bridge interprofessional roles to improve patient outcomes, especially in rural and remote communities.

The impact of modification techniques on the rheological properties of dysphagia foods and liquids

Modifying food and the textures of food has been done for decades within the food science and technology field. More recently, modifying the texture of foods has been used to manage swallowing disabilities (dysphagia). Swallowing disabilities are often associated with dehydration and malnutrition, thus nutritional intervention has formed part of serving texture-modified diets. The question remains whether these modification techniques are viable for individuals with swallowing disabilities living in majority world countries. This study used two modification methods on a widely used specialized nutritious food (SNF) to determine whether it may be modified and used in dysphagia management. The techniques had to be ergonomic and economically appropriate for individuals with swallowing disabilities living in majority world countries. The International Dysphagia Diet Standardization Initiative's (IDDSI) standards were used to determine whether the texturally modified SNF is safe for swallowing. Rheological measurements were performed to determine apparent viscosity and structure recovery of each sample. The effects of two modification techniques, aeration and particle separation, on the rheological properties of the SNF were also measured and analyzed. It was determined that both milk and water could be used with this SNF to create a dysphagia diet, but only under certain conditions. The overall results indicated that heating the samples increased the apparent viscosity and exacerbated lumping. Room temperature samples had less lumps and could be classified to the desired levels of the IDDSI (Level 2 and Level 4). Using a whisk to aerate the samples reduced lumps significantly and using a sieve to separate particles of liquid samples eliminated lumps. This study provides new data on how texture modification techniques and the IDDSI framework could be adapted to individuals living in majority world countries. By using modification techniques that are ergonomic and economically viable and an SNF with longevity, this study could be useful in guiding future training of nursing staff and caregivers of individuals living in poverty or resource-constrained communities. This study also adds to the data on the rheological properties of dysphagia foods, although this study did not make use of commercial thickeners generally used in the modification of diets.

The impact of aspiration pneumonia and nasogastric feeding on clinical outcomes in stroke patients: A retrospective cohort study

AIMS AND OBJECTIVES

To determine presence of clinical complications related to dysphagia and to explore their operational outcomes.

BACKGROUND

Dysphagia is a common complication of stroke. The management of poststroke dysphagia is multidisciplinary with nurses playing a key role in screening for dysphagia risk, monitoring tolerance of food and fluids and checking for the development of complications such as fever, dehydration and change in medical status. Dysphagia often results in further complications including aspiration pneumonia and the need for nasogastric feeding. Dysphagia-related complications have been shown to have a significant impact on morbidity and mortality, length of stay and cost of admission.

DESIGN

Retrospective cohort study.

METHODS

A total of 110 patients presenting with an ischaemic stroke were chart-audited.

RESULTS

Aspiration pneumonia poststroke was found to be significantly associated with increased overall length of stay, poorer functional outcomes poststroke as well as being associated with a high risk of mortality. The presence of a nasogastric tube was also associated with reduced functional outcomes poststroke and increased risk of death.

CONCLUSION

High prevalence and cost of complications associated with stroke highlight the complexity of providing nursing and allied health care to this patient population. This provides a snapshot of dysphagia-related complications experienced by stroke patients.

RELEVANCE TO CLINICAL PRACTICE

This paper highlights that poststroke complications can significantly impact on patient outcomes and operational factors such as cost of admission; therefore, poststroke care requires a multidisciplinary approach to management. Furthermore, preventing and managing complications poststroke is a key element of nursing care and has the potential to significantly reduce incidence of mortality, length of stay and cost of hospital admission.