Nutrition with Gastrostomy Feeding Tubes for Amyotrophic Lateral Sclerosis in Canada

Enabling decision-making: what assists people with motor neurone disease when they consider gastrostomy insertion?

PURPOSE

This study explores the views of people living with Motor Neurone Disease (MND) when they consider Percutaneous Endoscopic Gastrostomy (PEG) insertion, to understand their priorities and how their decisions were informed or supported.

MATERIALS AND METHODS

The study took place in single multidisciplinary specialised MND clinic in New South Wales, Australia. Nine people with MND (5 male and 4 female; age range 52-73 years; disease duration 6-99 months) who were considering, or had recently undergone PEG insertion, participated. Semi-structured interviews were conducted with participants to examine individual's experience of decision-making about PEG. The data were synthesised and analysed thematically.

RESULTS

Three main themes and two sub-themes captured participant views on their decision-making. The first, "What matters most to me," comprised optimising quality of life and maintaining family membership. The second theme explored "Understanding PEG and the clinical pathway." The third theme was "Thoughts on using a decision aid."

CONCLUSIONS

This study provides a foundation for future studies examining the longer-term outcomes of accepting, delaying or declining PEG. Insights from this study may be applicable to decision-making for any aspect of MND care where the outcomes or benefits are uncertain.

Supporting people with Motor Neuron Disease (MND) to make decisions about gastrostomy feeding tube placement: a survey of UK healthcare professionals' practice and beliefs

OBJECTIVE

Understand the practice and beliefs of healthcare professionals (HCPs) supporting the decision-making of people with MND (pwMND) about gastrostomy placement, including identifying differences between professions.

METHODS

An online cross-sectional survey disseminated to HCPs who support the decision-making of pwMND about gastrostomy placement.

RESULTS

A total of 139 participants completed the survey including representation from a range of healthcare professions. A third (36/101, 36%) initiated discussions about gastrostomy later in practice than they believed was ideal. In relation to the outcome of declining compared to accepting gastrostomy, participants were more likely to discuss aspiration (80% vs. 68%), choking (76% vs. 58%) and prognosis (36% vs. 22%). Participants believed gastrostomies should be placed after a mean 8.1% weight loss since symptom-onset. More participants favored gastrostomy placement before pwMND presented with respiratory symptoms (45%) compared to onset of dysphagia (11%). Half believed pwMND placed gastrostomies too late. Participants were more likely to 'often'/'always' recommend pwMND to have a gastrostomy (23%) than continue without (7%) or decline (4%) gastrostomy, when believing these were the best option for pwMND. Nurses and dietitians discussed the broadest range of information, while doctors were more likely to discuss mortality risk and prognosis.

CONCLUSION

There is variation in HCPs practice and beliefs about initiating discussions, the sharing of information and recommendations, and timing, about gastrostomy placement. The information shared varies by profession and there is evidence of sub-optimal communication between HCPs. Further research is required to understand how these findings may impact on the decision-making of pwMND about gastrostomy.

Current practices and barriers in gastrostomy indication in amyotrophic lateral sclerosis: a survey of ALS care teams in The Netherlands

OBJECTIVE

To describe current practices and barriers and support needs in gastrostomy indication and decision-making amongst rehabilitation physicians of ALS care teams in the Netherlands. Methods: Cross-sectional online survey of rehabilitation physicians of ALS care teams in the Netherlands. Survey items covered current practices in timing of indication (i.e. indicators and criteria), goals, initiating discussion about gastrostomy, and criteria for preferred method of placement; and barriers and support needs in indication and decision-making. Descriptive analysis was used for quantitative responses, thematic, and content analysis for qualitative data. Results: Twenty-nine physicians (41%) of 27 ALS care teams (71%) responded. Timing of indication: physicians agreed on important indicators but not cutoff values/criteria. Goals: optimizing nutritional status (100%), ensuring safe food-intake (72%), and reducing effort of meals (59%). Initiating discussion about gastrostomy: 52% introduces the topic early after diagnosis, 48% at indication. Criteria for method of placement included physician preference (69%), availability of service (21%), lower complication risk (17%), contraindication (59%), and patient preference (24%). Reported barriers (69% of respondents) were: patient readiness (52%), timing of indication (31%), and organizational barriers (18%). Support needs (62%): evidence-based timing of indication (35%) and tailored patient education (31%). Conclusions: There is practice variation in the timing of first introduction of gastrostomy and preferred method of placement, but agreement on goals and indicators . More evidence on optimal timing of gastrostomy placement is needed. However, until then early and regular discussion of the topic of gastrostomy and better patient information may promote patient readiness and support patient choice.

Tongue strength, dysphagia questionnaire, pharyngeal secretions and FEES findings in dysphagia management in amyotrophic lateral sclerosis

OBJECTIVE

Dysphagia is common in Amyotrophic lateral sclerosis (ALS). ALS shows significant phenotypic variability. It is characterized by progressive weakness and/or spasticity of muscles. Dysphagia symptoms vary. Aspiration is often silent and cognitive dysfunction is common. The purpose of the study was to evaluate tongue strength measurements, dysphagia questionnaire, the presence of pharyngeal secretions, and FEES findings in dysphagia management in ALS.

METHODS

Twenty-five patients completed the Eating Assessment Tool-10 (EAT-10), had their Maximum Isometric Tongue Pressure (MITP), and endurance measured and underwent Flexible Endoscopic Evaluation of Swallowing (FEES) providing 31 examinations.

RESULTS

Out of 25 patients, 76% were self-reported as dysphagic (EAT-10≥3) with a mean EAT-10 at 14.95 (±7.96). ALS patients had significantly decreased tongue strength (mean MITPanterior: 31.69 ± 17.32kPa). Comparing examinations of dysphagic and non-dysphagic status the mean MITPa of non-dysphagic was significantly greater (52.33 ± 10.97 kPa versus 20.6 ± 12.67 kPa), p<0.001. FEES detected aspiration in 10 out of 31 examinations [Penetration Aspiration Scale(PAS) ≥6]. Aspirator status examinations showed statistically significantly worse cough (p = 0.001), tongue strength (p = 0.001) and endurance (p = 0.003), pharyngeal secretions (p<0.001), velopharyngeal sufficiency (p = 0.006), pharyngeal squeeze (p = 0.009), vocal cords' movements (p = 0.001), pharyngeal pooling (p<0.001), EAT-10 (p = 0.001) and bulbar subscale of ALS Functioning Rating Scale-Revised (b-ALSFRS-R) scores (p = 0.014) compared to non-aspirator status. Correlation analysis indicated that the feeding status had strong statistically significant correlations with the EAT-10 score (rho = -0.816), anterior tongue strength (rho = 0.735), secretions (rho = -0.811), pharyngeal pooling (rho = -0.712) and PAS (rho = -0.676) at FEES, and b-ALSFRS-R score (rho = 0.791), all p<0.001. The EAT-10 had strong statistically significant correlations with the MITPa (r = -0.794, p<0.001), secretions (rho = 0.668, p<0.001), and b-ALSFRS-R score (rho = -0.766, p = 0.001). The FEES findings had strong statistically significant correlations with the anterior tongue strength (pooling: rho = -0.784), and secretions (PAS: rho = 0.723; pooling: rho = 0.671), all p<0.001. For the questionnaire, tongue strength and pharyngeal secretions, ROC analysis assessed cut-off points and discriminating ability to predict aspiration status (Area Under the Curve: 0.838; 0.845 and 0.93, respectively). EAT-10 with a cut-off at 8 was able to predict aspirator status with a sensitivity of 100% and a specificity of 42.9% (negative predictive value-NPV = 100%). A cut-off value of 22KPa for the MITPa discriminated aspirator status (sensitivity = 80%, specificity = 89.5%, NPV = 89.5%). The quantity of secretions observed upon endoscopy with a cut-off value at 1 was able to predict aspirator status (sensitivity = 90%, specificity = 80%, NPV = 94.1%).

CONCLUSION

Reduced tongue strength, questionnaire-reported symptoms, pharyngeal secretions, and FESS findings can guide identification of patients with ALS at risk of inefficient and unsafe swallowing.

Effectiveness of percutaneous endoscopic gastrostomy in amyotrophic lateral sclerosis

BACKGROUND

Weight loss and dysphagia are frequent features of amyotrophic lateral sclerosis (ALS) and influence prognosis. The aim of this study was to determine complications and outcomes in patients with percutaneous endoscopic gastrostomy (PEG) insertion in a high-volume center.

METHODS

A single center retrospective study on a prospectively collected cohort of 187 consecutive patients who have undergone PEG placement due to ALS was performed. Demographic and clinical parameters were analyzed.

RESULTS

There were 51.3% male; mean age at insertion was 65.7 years. Major complications occurred in 5 (2.7%) patients: 3 with local infections requiring intravenous antibiotic treatment, 1 patient with PEG dislocation required laparotomy and a new surgically introduced gastrostomy and 1 patient with buried-bumper syndrome. Improvement in Body Mass Index (BMI) and serum albumin levels were recorded in 37.3% and 51.9%, respectively. Mortality after 30 days, 6 months and 12 months was 5.3%, 38% and 64.3%, respectively. At the time of data collection, 78.9% of the patients had died. Mean survival after ALS diagnosis was 20.5 months.

CONCLUSIONS

PEG placement is as an effective, safe nutritional method with a low complication rate in patients with ALS, with or without non-invasive ventilation. The BMI and albumin levels stabilize after PEG placement, indicating benefits of early placement.

Effect of nutrition on neurodegenerative diseases. A systematic review

Neurodegenerative diseases are characterized by the progressive functional loss of neurons in the brain, causing cognitive impairment and motoneuron disability. Although multifactorial interactions are evident, nutrition plays an essential role in the pathogenesis and evolution of these diseases. A systematic literature search was performed, and the prevalence of studies evaluated the effect of the Mediterranean diet (MeDiet), nutritional support, EPA and DHA, and vitamins on memory and cognition impairment. The data showed that malnutrition and low body mass index (BMI) is correlated with the higher development of dementia and mortality. MeDiet, nutritional support, and calorie-controlled diets play a protective effect against cognitive decline, Alzheimer's disease (AD), Parkinson disease (PD) while malnutrition and insulin resistance represent significant risk factors. Malnutrition activates also the gut-microbiota-brain axis dysfunction that exacerbate neurogenerative process. Omega-3 and -6, and the vitamins supplementation seem to be less effective in protecting neuron degeneration. Insulin activity is a prevalent factor contributing to brain health while malnutrition correlated with the higher development of dementia and mortality.

Nasal unsedated seated percutaneous endoscopic gastrostomy (nuPEG): a safe and effective technique for percutaneous endoscopic gastrostomy placement in high-risk candidates

OBJECTIVE

Percutaneous endoscopic gastrostomy (PEG) tube placement is associated with a high risk of cardiorespiratory complications in patients with significant respiratory compromise. This study reports a case series of high-risk patients undergoing PEG placement using a modified technique-nasal unsedated seated PEG (nuPEG) placement.

DESIGN

Retrospective review of 67 patients at high risk of complications undergoing PEG placement between September 2012 and December 2016.

SETTING

UK specialist tertiary centre for clinical nutrition support.

INTERVENTIONS

Patients underwent 'push' PEG placement using nasal endoscopy without sedation in a seated position.

MAIN OUTCOME MEASURES

Procedural success and tolerability, short term (within 24 hours), medium term (24 hours to 30 days) complications and survival were recorded.

RESULTS

67 patients underwent 68 nuPEG placements. The majority had motor neuron disease (46/67). One patient developed a lower respiratory tract infection the following day. Two patients experienced accidental displacement of their PEG within 2 weeks. One patient died within 30 days of nuPEG insertion due to reasons unrelated to the procedure. Endoscopic comfort scores of 1 or 2 (98.0%) indicated good tolerance. A failure rate of 10.5% was attributed to intrathoracic displacement of the stomach, almost certainly due to the advanced stage of the neurological disease and associated diaphragmatic weakness.

CONCLUSIONS

Our experience with the nuPEG technique suggests that it is safe and well tolerated in high-risk patients. As a result, it has now entirely supplanted radiologically inserted gastrostomy insertion in our institution and we recommend it as the method of choice for gastrostomy tube insertion in such patients.

Trends in Research Literature Describing Dysphagia in Motor Neuron Diseases (MND): A Scoping Review

Dysphagia in motor neuron diseases (MNDs) is highly complex, affecting all stages of swallowing and leading to impaired swallowing safety and efficiency. In order to explore the degree to which research is capturing the symptom of dysphagia in MND, we conducted a scoping review of the existing literature. The primary aims of this review were to identify common themes within the literature on dysphagia in MND, explore patterns and trends in research focus, and identify if any imbalances exist between the research themes related to dysphagia description and management. A comprehensive search strategy yielded 1690 unique articles for review. Following relevance screening, a total of 157 articles were included in the synthesis. Relevant data and keywords were extracted from each article and grouped into themes. Frequency estimates were calculated for each theme to identify trends across research literature. Swallowing impairment in MNDs is described in a variety of ways across current research. The most commonly reported theme was Aspiration/Penetration, mentioned in 73.2% of all included articles; a significant imbalance was identified between reports of swallowing safety and efficiency (p = 0.008). The most frequently reported theme related to dysphagia management was Enteral Nutrition, and very few studies have reported on the efficacy of Rehabilitation/Compensatory recommendations. It is suggested that researchers and clinicians remain mindful of imbalances and gaps in research, and aim to characterize dysphagia in MNDs in a comprehensive manner. Further research investigating discrete, measureable changes in swallowing pathophysiology would be beneficial to delineate the key factors contributing to impaired swallowing safety and efficiency.

Correlating factors in the recommendation of feeding tubes in the nutritional management of amyotrophic lateral sclerosis

Amyotrophic lateral sclerosis (ALS) is associated with nutritional deficits. Gastrostomy tubes are often inserted in patients with ALS to supplement or replace oral intake. The aim of this study was to better understand the practices of gastrostomy tube insertion in patients with ALS. Pre-collected de-identified data were obtained from the Canadian Neuromuscular Disease Registry (CNDR). Feeding tube status was compared with markers of dysphagia, respiratory compromise, and weight status in both univariate and multivariate analysis by employing odds ratios. Results showed that abnormal ALSFRS-R dysphagia scores were associated with higher rates of feeding tube referrals. The use of non-invasive ventilation also increased the likelihood that a tube was recommended. A higher FVC was found to decrease the likelihood of recommendation. BMI and ALSFRS-R dyspnoea scores were not found to be independently associated. In conclusion, our findings demonstrate that symptoms of dysphagia and respiratory status are associated with higher rates of recommendation for feeding tubes. While not independently significant, individuals with a lower BMI had more feeding tube referrals compared to individuals with a normal or elevated BMI. A similar trend was noted for ALSFRS-R dyspnoea scores. Further research is required to determine if these represent optimal criteria for placement.