Risk Factors Associated With Neurogenic Bowel Complications and Dysfunction in Spinal Cord Injury

Modulatory effects of gut microbiota on innate and adaptive immune responses following spinal cord injury

Spinal cord injury (SCI) represents a highly debilitating trauma to the central nervous system, currently lacking effective therapeutic strategies. The cascade of inflammatory responses induced by secondary damage following SCI disrupts the local immune environment at the injury site, ultimately exacerbating functional impairments post-injury. With advancing research on the gut-brain axis, evidence suggests that dysbiosis of the gut microbiota post-SCI amplifies inflammatory responses and plays a pivotal role in modulating post-injury immune-inflammatory responses. In this review article, we will explore the significant role of the gut microbiota and its metabolic products in modulating the responses of central and peripheral immune cells post-SCI, as well as their potential as therapeutic interventions for SCI treatment.

How Can We Treat If We Do Not Measure: A Systematic Review of Neurogenic Bowel Objective Measures

Background

Guidelines fail to recommend objective measures to assist with treatment of neurogenic bowel dysfunction (NBD) in spinal cord injury (SCI).

Objectives

The main objective was to review the literature to identify the objective measures used in all NBD populations and to present their results and any correlations performed to validated subjective measures.

Methods

A systematic review of the literature was performed in accordance with PRISMA (2020) guidelines, including all records from January 2012 to May 2023 with MeSH terms like "neurogenic bowel" indexed in the following databases: PubMed, EMBASE, CINAHL, Cochrane Central Trials Register, and ClinicalTrials.gov. Abstracts were excluded if they did not include objective measures or if they only mentioned the esophagus, stomach, and/or small bowel. Records were screened independently by at least two collaborators, and differences were resolved by unanimous agreement.

Results

There were 1290 records identified pertaining to NBD. After duplicates were removed, the remaining records were screened for a total of 49 records. Forty-one records (82%) included subjective measures. Two-thirds of the articles involved the population with SCI/disease (n = 552) and one-third were non-SCI NBD (n = 476). Objective measures were categorized as (1) transit time, (2) anorectal physiology testing, and (3) miscellaneous. Of the 38 articles presenting results, only 16 (42%) performed correlations of objective measures to subjective measures.

Conclusion

There is an abundance of literature supporting the use of objective outcome measures for NBD in SCI. Strong correlations of subjective measures to objective outcome measures were generally lacking, supporting the need to use both measures to help with NBD management.

Incident traumatic spinal cord injury and risk of Alzheimer's disease and related dementia: longitudinal case and control cohort study

STUDY DESIGN

Retrospective case/control longitudinal cohort study OBJECTIVES: Prevalent traumatic spinal cord injury (TSCI) is associated with Alzheimer's disease and related dementia (ADRD). We examined the hazard ratio for ADRD after incident TSCI and hypothesized that ADRD hazard is greater among adults with incident TSCI compared with their matched control of adults without TSCI.

SETTING

Using 2010-2020 U.S. national private administrative claims data, we identified adults aged 45 years and older with probable (likely and highly likely) incident TSCI (n = 657). Our controls included one-to-ten matched cohort of people without TSCI (n = 6553).

METHODS

We applied Cox survival models and adjusted them for age, sex, years of living with certain chronic conditions, exposure to six classes of prescribed medications, and neighborhood characteristics of place of residence. Hazard ratios were used to compare the results within a 4-year follow-up.

RESULTS

Our fully adjusted model without any interaction showed that incident TSCI increased the risk for ADRD (HR = 1.30; 95% CI, 1.01-1.67). People aged 45-64 with incident TSCI were at high risk for ADRD (HR = 5.14; 95% CI, 2.27-11.67) and no significant risk after age 65 (HR = 1.20; 95% CI, .92-1.55). Our sensitivity analyses confirmed a higher hazard ratio for ADRD after incident TSCI at 45-64 years of age compared with the matched controls.

CONCLUSIONS

TSCI is associated with a higher hazard of ADRD. This study informs the need to update clinical guidelines for cognitive screening after TSCI to address the heightened risk of cognitive decline and to shed light on the causality between TSCI and ADRD.

Effects of exoskeleton-assisted walking on bowel function in motor-complete spinal cord injury patients: involvement of the brain-gut axis, a pilot study

Evidence has demonstrated that exoskeleton robots can improve intestinal function in patients with spinal cord injury (SCI). However, the underlying mechanisms remain unelucidated. This study investigated the effects of exoskeleton-assisted walking (EAW) on intestinal function and intestinal flora structure in T2-L1 motor complete paraplegia patients. The results showed that five participants in the EAW group and three in the conventional group reported improvements in at least one bowel management index, including an increased frequency of bowel evacuations, less time spent on bowel management per day, and less external assistance (manual digital stimulation, medication, and enema usage). After 8 weeks of training, the amount of glycerol used in the EAW group decreased significantly (p <0.05). The EAW group showed an increasing trend in the neurogenic bowel dysfunction (NBD) score after 8 weeks of training, while the conventional group showed a worsening trend. Patients who received the EAW intervention exhibited a decreased abundance of Bacteroidetes and Verrucomicrobia, while Firmicutes, Proteobacteria, and Actinobacteria were upregulated. In addition, there were decreases in the abundances of Bacteroides, Prevotella, Parabacteroides, Akkermansia, Blautia, Ruminococcus 2, and Megamonas. In contrast, Ruminococcus 1, Ruminococcaceae UCG002, Faecalibacterium, Dialister, Ralstonia, Escherichia-Shigella, and Bifidobacterium showed upregulation among the top 15 genera. The abundance of Ralstonia was significantly higher in the EAW group than in the conventional group, and Dialister increased significantly in EAW individuals at 8 weeks. This study suggests that EAW can improve intestinal function of SCI patients in a limited way, and may be associated with changes in the abundance of intestinal flora, especially an increase in beneficial bacteria. In the future, we need to further understand the changes in microbial groups caused by EAW training and all related impact mechanisms, especially intestinal flora metabolites. Clinical trial registration: https://www.chictr.org.cn/.

Use of the Veterans Health Administration online patient portal among Veterans with spinal cord injuries and disorders

CONTEXT/OBJECTIVE

Online patient portals like the Veteran Health Administration's (VA) My HealtheVet (MHV) may be particularly useful for Veterans with spinal cord injuries/disorders (SCI/D), many of whom experience barriers to care. The objective of this analysis was to examine MHV use among Veterans with SCI/D.

DESIGN

Retrospective database analysis.

SETTING

VA SCI/D System of Care.

PARTICIPANTS

Veterans with SCI/D who utilize VA care.

INTERVENTIONS

N/A.

OUTCOME MEASURES

MHV registration and use of key portal features among Veterans who newly registered for MHV. Veteran characteristics associated with registration and use of portal features using multiple logistic regression.

RESULTS

14.6% of Veterans with SCI/D in our sample registered to use MHV. 48.7% used the medication refill feature, 28.7% used the appointment view feature, 25.0% sent or read at least one secure message and 10.8% used the Blue Button feature. Adjusted analyses indicate that having a C5-8 (OR: 1.36, CI95%: 1.06-1.76, P < 0.05) or T1-S5 (OR: 1.41, CI95%: 1.13-1.78, P < 0.01) (vs. C1-C4), having (vs. not having) neurogenic bladder (OR: 1.45, CI95%: 1.18-1.77, P < 0.01), being married (vs. not married) (OR: 2.00, CI95%: 1.67-2.39, P < 0.01), and increased healthcare utilization in the third (OR: 1.71, CI95%: 1.31-2.24, P < 0.01) and fourth (OR: 1.73, CI95%: 1.27-2.34, P < 0.01) quartiles (vs. first quartile) were associated with increased odds of MHV registration. We also identified factors associated with use of key MHV features.

CONCLUSIONS

Our results suggest that MHV registration and use of key portal features was limited among Veterans with SCI/D. Effort to increase portal use in this population are warranted.

Effective bowel management in spinal cord injury during inpatient rehabilitation: data from the Dutch spinal cord injury database

STUDY DESIGN

Retrospective Observational Study.

OBJECTIVES

To describe bowel management in individuals with a recently acquired spinal cord injury (SCI) both at admittance and discharge from first inpatient rehabilitation, and to determine factors that contribute to effective bowel management (EBM) at discharge.

SETTING

Specialized rehabilitation centers in the Netherlands.

METHODS

Data from the Dutch Spinal Cord Injury Database (DSCID) collected between 2015 and 2019 was used. EBM was defined by the variables of stool frequency and fecal incontinence. After univariate analysis, a multivariate regression analysis was conducted.

RESULTS

Of 1,210 participants, 818 (68%) did not have EBM at admittance. At discharge, 308 (38%) did still not have EBM (in total 33% of all participants). The odds of having EBM at discharge was 2.82 times higher for participants with ASIA Impairment Scale (AIS) D compared to those with AIS-A (95% CI: 1.38-5.78). Participants with non-traumatic SCI had higher odds of having EBM than those with traumatic SCI (OR: 0.59, 95% CI 0.38-0.91). Use of suppositories, small enema, medication influencing bowel function, and oral laxatives at admittance did not influence EBM significantly at discharge.

CONCLUSIONS

Bowel management improves during first inpatient rehabilitation. However, realizing EBM after a recently acquired SCI is a challenge. This endorses the importance of bowel management during inpatient rehabilitation, especially for people with AIS-A and non-traumatic etiology.

Short-chain fatty acids ameliorate spinal cord injury recovery by regulating the balance of regulatory T cells and effector IL-17+ γδ T cells

Spinal cord injury (SCI) causes motor, sensory, and autonomic dysfunctions. The gut microbiome has an important role in SCI, while short-chain fatty acids (SCFAs) are one of the main bioactive mediators of microbiota. In the present study, we explored the effects of oral administration of exogenous SCFAs on the recovery of locomotor function and tissue repair in SCI. Allen's method was utilized to establish an SCI model in Sprague-Dawley (SD) rats. The animals received water containing a mixture of 150 mmol/L SCFAs after SCI. After 21 d of treatment, the Basso, Beattie, and Bresnahan (BBB) score increased, the regularity index improved, and the base of support (BOS) value declined. Spinal cord tissue inflammatory infiltration was alleviated, the spinal cord necrosis cavity was reduced, and the numbers of motor neurons and Nissl bodies were elevated. Enzyme-linked immunosorbent assay (ELISA), real-time quantitative polymerase chain reaction (qPCR), and immunohistochemistry assay revealed that the expression of interleukin (IL)‍-10 increased and that of IL-17 decreased in the spinal cord. SCFAs promoted gut homeostasis, induced intestinal T cells to shift toward an anti-inflammatory phenotype, and promoted regulatory T (Treg) cells to secrete IL-10, affecting Treg cells and IL-17+ γδ T cells in the spinal cord. Furthermore, we observed that Treg cells migrated from the gut to the spinal cord region after SCI. The above findings confirm that SCFAs can regulate Treg cells in the gut and affect the balance of Treg and IL-17+ γδ T cells in the spinal cord, which inhibits the inflammatory response and promotes the motor function in SCI rats. Our findings suggest that there is a relationship among gut, spinal cord, and immune cells, and the "gut-spinal cord-immune" axis may be one of the mechanisms regulating neural repair after SCI.

Gut microbiota: A new target for traditional Chinese medicine in the treatment of depression

ETHNIC PHARMACOLOGICAL RELEVANCE

The causes of depression are complex. Many factors are involved in its pathogenesis, including the individual's biological and social environment. Although numerous studies have reported that the gut microbiota plays a significant role in depression, drugs that regulate the gut microbiota to treat depression have not yet been comprehensively reviewed. At the same time, more and more attention has been paid to the characteristics of traditional Chinese medicine (TCM) in improving depression by regulating gut microbiota. In ancient times, fecal microbiota transplantation was recorded in TCM for the treatment of severe diseases. There are also records in Chinese ancient books about the use of TCM to adjust gut microbiota to treat diseases, which has opened up a unique research field in TCM. Therefore, this article focuses on the pharmacological effects, targets, and mechanisms of TCM in improving depression by mediating the influence of gut microbiota.

AIM OF THIS REVIEW

To summarize the role the gut microbiota plays in depression, highlight potential regulatory targets, and elucidate the anti-depression mechanisms of TCMs through regulation of the gut microbiota.

METHODS

A systematic review of 256 clinical trials and pharmaceutical studies published until June 2022 was conducted in eight electronic databases (Web of Science, PubMed, SciFinder, Research Gate, ScienceDirect, Google Scholar, Scopus, and China Knowledge Infrastructure), according to the implemented PRISMA criteria, using the search terms "traditional Chinese medicine," "depression," and "gut microbiota."

RESULTS

Numerous studies reported the effects of different gut bacteria on depression and that antidepressants work through the gut microbiota. TCM preparations based on compound Chinese medicine, the Chinese Materia Medica, and major bioactive components exerted antidepressant-like effects by improving levels of neurotransmitters, short-chain fatty acids, brain-derived neurotrophic factor, kynurenine, and cytokines via regulation of the gut microbiota.

CONCLUSION

This review summarized the anti-depression effects of TCM on the gut microbiota, providing evidence that TCMs are safe and effective in the treatment of depression and may provide a new therapeutic approach.

Factors influencing decisions about neurogenic bladder and bowel surgeries among veterans and civilians with spinal cord injury

OBJECTIVE

This study investigated factors influencing surgical decision-making (DM) to treat neurogenic bladder and bowel (NBB) dysfunction for veterans and civilians with spinal cord injury (SCI) in the United States (US).

DESIGN

Semi-structured interviews complemented by survey measures.

SETTING

Community-dwelling participants who received treatment at a major Midwestern US medical system, a nearby Veterans Affairs (VA) facility, and other VA sites around the US.

PARTICIPANTS

Eighteen participants with SCI who underwent surgeries; completed semi-structured interviews and survey measures.

INTERVENTIONS

Not applicable.

OUTCOMES MEASURES

Semi-structured interviews were coded to reflect factors, DM enactment, and outcomes, including surgery satisfaction and quality of life (QOL). Quantitative measures included COMRADE, Ways of Coping Questionnaire, Bladder and Bowel Treatment Inventory, PROMIS Global Health and Cognitive Abilities scales, and SCI-QOL Bladder and Bowel short form.

RESULTS

Themes identified about factors influencing DM included: recurrent symptoms and complications; balancing dissatisfaction with NBB management against surgery risks; achieving independence and life style adjustments; participant's driven solutions; support and guidance and trust in doctors; and access and barriers to DM. DM enactment varied across surgeries and individuals, revealing no clear patterns. Most participants were satisfied with the surgery outcomes. Some differences in demographics were observed between veterans and civilians.

CONCLUSIONS

We have attempted to illustrate the process of NBB DM as individuals move from factors to enactment to outcomes. Attending to the complexity of the DM process through careful listening and clear communication will allow clinicians to better assist patients in making surgical decisions about NBB management.

Nutrition Education to Reduce Metabolic Dysfunction for Spinal Cord Injury: A Module-Based Nutrition Education Guide for Healthcare Providers and Consumers

Spinal cord injury (SCI) results in a high prevalence of neurogenic obesity and metabolic dysfunction. The increased risk for neurogenic obesity and metabolic dysfunction is mainly due to the loss of energy balance because of significantly reduced energy expenditure following SCI. Consequently, excessive energy intake (positive energy balance) leads to adipose tissue accumulation at a rapid rate, resulting in neurogenic obesity, systemic inflammation, and metabolic dysfunction. The purpose of this article is to review the existing literature on nutrition, dietary intake, and nutrition education in persons with SCI as it relates to metabolic dysfunction. The review will highlight the poor dietary intakes of persons with SCI according to authoritative guidelines and the need for nutrition education for health care professionals and consumers. Nutrition education topics are presented in a module-based format with supporting literature. The authors emphasize the role of a diet consisting of low-energy, nutrient-dense, anti-inflammatory foods consistent with the Dietary Guidelines for Americans' MyPlate to effectively achieve energy balance and reduce the risk for neurogenic obesity and metabolic dysfunction in individuals with SCI.

Intestinal microbiota and melatonin in the treatment of secondary injury and complications after spinal cord injury

Spinal cord injury (SCI) is a central nervous system (CNS) disease that can cause sensory and motor impairment below the level of injury. Currently, the treatment scheme for SCI mainly focuses on secondary injury and complications. Recent studies have shown that SCI leads to an imbalance of intestinal microbiota and the imbalance is also associated with complications after SCI, possibly through the microbial-brain-gut axis. Melatonin is secreted in many parts of the body including pineal gland and gut, effectively protecting the spinal cord from secondary damage. The secretion of melatonin is affected by circadian rhythms, known as the dark light cycle, and SCI would also cause dysregulation of melatonin secretion. In addition, melatonin is closely related to the intestinal microbiota, which protects the barrier function of the gut through its antioxidant and anti-inflammatory effects, and increases the abundance of intestinal microbiota by influencing the metabolism of the intestinal microbiota. Furthermore, the intestinal microbiota can influence melatonin formation by regulating tryptophan and serotonin metabolism. This paper summarizes and reviews the knowledge on the relationship among intestinal microbiota, melatonin, and SCI in recent years, to provide new theories and ideas for clinical research related to SCI treatment.

Functional recovery priorities and community rehabilitation service preferences of spinal cord injury individuals and caregivers of Chinese ethnicity and cultural background

Introduction

Spinal cord injury (SCI) causes significant and permanent disability affecting motor, sensory and autonomic functions. We conducted a survey on the priorities of functional recovery and preferences for community rehabilitation services in a cohort of Chinese individuals with SCI as well as the primary caregivers. The study also investigated their views on advanced technology and research.

Methods

An online platform with a self-administered questionnaire was used to collect the opinions of clients that received services from an SCI follow-up clinic, a self-help association, or a non-government organization from 1 September-31 December 2021.

Results

Eighty-seven subjects (74 individuals with SCI-48 tetraplegic, 26 paraplegic, and 13 caregivers) responded to the survey. Recovery of arm/hand function was given the highest priority among tetraplegics, followed by upper trunk/body strength and balance, and bladder/bowel function. Sexual function had a significant lower ranking than all priority areas except normal sensation (p < 0.05). Paraplegics viewed bladder/bowel function as the most important area of functional recovery, followed by walking movement, upper trunk/body strength and balance, elimination of chronic pain, and regaining normal sensation. There was no statistically significant difference among the top priority areas (p > 0.05). In contrast to previous studies done in Western populations, the study revealed that sexual function was ranked as the lowest by all 3 groups of respondents (tetraplegics, paraplegics, and caregivers). The majority of participants thought community rehabilitation services were inadequate. Most of the respondents were interested to try advanced technology which would facilitate their daily life and rehabilitation. About half of the individuals with SCI thought advance in technology and research could bring significant improvement in their quality of life in the coming 10 years.

Conclusion

This survey is the first study specifically looking into the recovery and rehabilitation priorities of a Chinese population of individuals with SCI. This is also the first study to investigate the priorities of the primary caregivers of SCI individuals. The findings are useful as a reference for planning of future research and provision of rehabilitation services for the SCI community locally and in other parts of China.

Effect of transcutaneous abdominal electrical stimulation in people with constipation due to spinal cord injuries: a pilot study

OBJECTIVE

To evaluate the effect of abdominal electrical stimulation (EE) on bowel movement frequency and feces consistency and expelled amount in people with constipation due to spinal cord injuries (SCI).

METHOD

This is an experimental, crossover, randomized pilot study with two treatment groups: conventional intestinal rehabilitation and conventional rehabilitation associated with EE via 8- and 20-Hz Functional Electrical Stimulation (FES) of the abdominal muscles. Both groups were followed for two weeks with daily 30-minute EE sessions. Participants were hospitalized in a rehabilitation institute in the municipality of São Paulo. Data were analyzed using descriptive and inferential statistics.

RESULTS

This study included 10 people with SCI, of which most were male (70%), with a mean age of 39 years (SD = 16.37). EE, associated with conventional treatment, was more effective in increasing defecation frequency (p = 0.029) and amount of feces expelled (p = 0.031).

CONCLUSION

Abdominal EE, associated with conventional treatment, helped to increase defecation frequency and amount of feces expelled in people with constipation due to SCI. This pilot study will serve as the basis for a future clinical trial with greater sampling and statistical evidence.

Moxibustion exhibits therapeutic effects on spinal cord injury via modulating microbiota dysbiosis and macrophage polarization

In this study, we aimed to study the effect of moxibustion (MOX) on microbiota dysbiosis and macrophage polarization, so as to unveil the mechanism underlying the therapeutic effect of MOX in the management of spinal cord injury (SCI). SCI animal models were established to study the effect of MOX. Accordingly, it was found that MOX treatment significantly suppressed the Ace index and Shannon index in the SCI group. Moreover, the reduced relative levels of Lactobacillales and Bifidobacteriales and the elevated relative level of Clostridiales in the SCI animals were mitigated by the treatment of MOX. The body weight, food intake, energy expenditure (EE) index and respiratory quotient (RQ) index of SCI mice were all evidently decreased, but the levels of interleukin (IL)-17, interferon (IFN)-γ, monocyte chemoattractant protein-1 (MCP-1) and IL-1β were increased in the SCI group. Moreover, MOX treatment significantly mitigated the dysregulation of above factors in SCI mice. Accordingly, we found that the Basso Mouse Scale (BMS) score was negatively correlated with the level of Clostridiales while positively correlated with the level of Lactobacillales. The apoptotic index and caspase-3 level were both evidently increased in the SCI group, while the SCI+MOX group showed reduced levels of apoptotic index and caspase-3. Therefore, it can be concluded that the treatment with MOX can promote microbiota dysbiosis and macrophage polarization, thus alleviating spinal cord injury by down-regulating the expression of inflammatory cytokines.

Neurogenic Bowel and Management after Spinal Cord Injury: A Narrative Review

People with spinal cord injury (SCI) suffer from the sequela of neurogenic bowel and its disabling complications primarily constipation, fecal incontinence, and gastrointestinal (GI) symptoms. Neurogenic bowel is a functional bowel disorder with a spectrum of defecatory disorders as well as colonic and gastrointestinal motility dysfunction. This manuscript will review the anatomy and physiology of gastrointestinal innervation, as well as the pathophysiology associated with SCI. It will provide essential information on the recent guidelines for neurogenic bowel assessment and medical management. This will allow medical providers to partner with their patients to develop an individualized bowel plan utilizing a combination of various pharmacological, mechanical and surgical interventions that prevent complications and ensure successful management and compliance. For people with SCI and neurogenic bowel dysfunction, the fundamental goal is to maintain health and well-being, promote a good quality of life and support active, fulfilled lives in their homes and communities.

Relationship between neurogenic bowel dysfunction severity and functional status, depression, and quality of life in individuals with spinal cord injury

OBJECTIVES/CONTEXT

To evaluate the relationship between severity of neurogenic bowel dysfunction (NBD) and functional status, depression, and quality of life in individuals with spinal cord injury (SCI) and to determine the factors associated with developing moderate-to-severe NBD.

DESIGN

Cross-sectional study.

SETTING

University hospital rehabilitation outpatient clinic.

PARTICIPANTS

Individuals with traumatic SCI, at least one year post-injury (N = 92).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Neurogenic Bowel Dysfunction Score, Functional Independence Measure (FIM), Beck Depression Inventory (BDI), and Short Form-36 (SF-36).

RESULTS

In the current sample, we found that half of the individuals with SCI had moderate-to-severe NBD. Individuals with moderate and severe NBD had lower motor FIM (P = 0.008 and P = 0.006, respectively) and SF-36 physical functioning (PF) scale (P = 0.020 and P = 0.031, respectively) scores than individuals with very minor NBD. There was no difference in the BDI scores among individuals with different levels of NBD. Individuals with American Spinal Injury Association Impairment Scale (AIS) A injuries were more likely to develop moderate-to-severe NBD than those with AIS C (odds ratio (OR) = 6.52; 95% confidence interval (CI) 1.13-37.79; P = 0.005) or AIS D (OR = 17.19; 95% CI 3.61-81.82; p < 0.001) injuries.

CONCLUSION

Individuals with moderate-to-severe NBD had higher levels of dependency in activities of daily living and lower SF-36 PF scale scores than individuals with very minor NBD. Among individuals with SCI, completeness of injury was a significant factor for developing moderate-to-severe NBD.

Efeito da eletroestimulação abdominal transcutânea no quadro de constipação em pessoas com lesão medular: estudo piloto

RESUMO Objetivo: Avaliar o efeito da eletroestimulação (EE) abdominal sobre a frequência de evacuações, a consistência e a quantidade de fezes em pessoas com constipação decorrente da lesão medular (LM). Método: Estudo piloto experimental do tipo crossover-randomizado em dois grupos de tratamento: convencional de reabilitação intestinal e convencional associado à EE com Functional Electrical Stimulation (FES) de 8 e 20 Hz aplicados na musculatura abdominal. Ambos os grupos em seguimento por duas semanas, com 30 minutos de sessão diária de EE. Os participantes estavam internados em um instituto de reabilitação da cidade de São Paulo. Os dados foram analisados por meio de estatística descritiva e inferencial. Resultados: Participaram do estudo 10 pessoas com LM, a maioria do sexo masculino (70%), com média de idade de 39 anos (DP = 16,37). A EE, associada ao tratamento convencional, mostrou-se mais eficaz no aumento da frequência evacuatória (p = 0,029) e na quantidade de fezes (p = 0,031). Conclusão: A EE abdominal associada ao tratamento convencional auxiliou no aumento da frequência evacuatória e na quantidade de fezes no quadro de constipação em pessoas com LM. Este estudo piloto servirá como base para um futuro ensaio clínico com maior amostragem e comprovação estatística.

Glial-Neuronal Interactions in Pathogenesis and Treatment of Spinal Cord Injury

Traumatic spinal cord injury (SCI) elicits an acute inflammatory response which comprises numerous cell populations. It is driven by the immediate response of macrophages and microglia, which triggers activation of genes responsible for the dysregulated microenvironment within the lesion site and in the spinal cord parenchyma immediately adjacent to the lesion. Recently published data indicate that microglia induces astrocyte activation and determines the fate of astrocytes. Conversely, astrocytes have the potency to trigger microglial activation and control their cellular functions. Here we review current information about the release of diverse signaling molecules (pro-inflammatory vs. anti-inflammatory) in individual cell phenotypes (microglia, astrocytes, blood inflammatory cells) in acute and subacute SCI stages, and how they contribute to delayed neuronal death in the surrounding spinal cord tissue which is spared and functional but reactive. In addition, temporal correlation in progressive degeneration of neurons and astrocytes and their functional interactions after SCI are discussed. Finally, the review highlights the time-dependent transformation of reactive microglia and astrocytes into their neuroprotective phenotypes (M2a, M2c and A2) which are crucial for spontaneous post-SCI locomotor recovery. We also provide suggestions on how to modulate the inflammation and discuss key therapeutic approaches leading to better functional outcome after SCI.

Influence of severity and level of injury on the occurrence of complications during the subacute and chronic stage of traumatic spinal cord injury: a systematic review

OBJECTIVE

Secondary health conditions (SHCs) are long-term complications that frequently occur due to traumatic spinal cord injury (tSCI) and can negatively affect quality of life in this patient population. This study provides an overview of the associations between the severity and level of injury and the occurrence of SHCs in tSCI.

METHODS

A systematic search was conducted in PubMed and Embase that retrieved 44 studies on the influence of severity and/or level of injury on the occurrence of SHCs in the subacute and chronic phase of tSCI (from 3 months after trauma). The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed.

RESULTS

In the majority of studies, patients with motor-complete tSCI (American Spinal Injury Association [ASIA] Impairment Scale [AIS] grade A or B) had a significantly increased occurrence of SHCs in comparison to patients with motor-incomplete tSCI (AIS grade C or D), such as respiratory and urogenital complications, musculoskeletal disorders, pressure ulcers, and autonomic dysreflexia. In contrast, an increased prevalence of pain was seen in patients with motor-incomplete injuries. In addition, higher rates of pulmonary infections, spasticity, and autonomic dysreflexia were observed in patients with tetraplegia. Patients with paraplegia more commonly suffered from hypertension, venous thromboembolism, and pain.

CONCLUSIONS

This review suggests that patients with a motor-complete tSCI have an increased risk of developing SHCs during the subacute and chronic stage of tSCI in comparison with patients with motor-incomplete tSCI. Future studies should examine whether systematic monitoring during rehabilitation and the subacute and chronic phase in patients with motor-complete tSCI could lead to early detection and potential prevention of SHCs in this population.

Factors impacting bowel symptoms in a contemporary spinal cord injury cohort: results from the Neurogenic Bladder Research Group Registry

STUDY DESIGN

Cross sectional.

OBJECTIVES

To identify variables associated with severe bowel symptoms in spinal cord injured people.

SETTING

National cohort.

METHODS

Adult spinal cord injured (SCI) people were recruited for an online registry and 1373 were included for analysis. Univariate analysis and logistic regression was used to evaluate associations between severity of bowel symptoms and variables. Bowel symptoms were assessed by the Neurogenic Bowel Dysfunction (NBD) score and patients scoring ≥14 were categorized as having severe bowel symptoms. Autonomic dysreflexia (AD) severity was measured using a six item questionnaire and reported as total AD score (0-24). Bladder management was categorized as: voiding, clean intermittent catheterization (CIC), surgery (augmentation/diversion) or indwelling catheter.

RESULTS

Severe bowel symptoms were reported in 570 (42%) On multivariable logistic regression, every point increase of AD total score was associated with 5% increased odds of having more severe bowel symptoms [OR 1.05 95% CI 1.03-1.10]. Type of bladder management was also associated with more severe symptoms (p = 0.0001). SCI people with indwelling catheters (OR = 2.16, 95% CI 1.40-3.32) or reconstructive surgery (OR = 1.79, 95% CI 1.08-3.32) were almost twice as likely to report more severe bowel symptoms than those performing CIC.

Spinal cord injury: A multisystem physiological impairment/dysfunction

Spinal cord injury (SCI) is a complex disease that affects not only sensory and motor pathways below the neurological level of injury (NLI) but also all the organs and systems situated below this NLI. This multisystem impairment implies comprehensive management in dedicated SCI specialized centers, by interdisciplinary and multidisciplinary teams, able to treat not only the neurological impairment, but also all the systems and organs affected. After a brief history of the Spinal Cord Medicine, the author describes how to determine the level and severity of a SCI based on the International Standards for Neurological Classification of Spinal Cord Injury and the prognosis factors of recovery. This article provides also a review of the numerous SCI-related impairments (except for urinary, sexual problems and pain treated separately in this issue), their principles of management and related complications.

Pharmacological Management of Neurogenic Bowel Dysfunction after Spinal Cord Injury and Multiple Sclerosis: A Systematic Review and Clinical Implications

Neurogenic bowel dysfunction (NBD) is a common problem for people with spinal cord injury (SCI) and multiple sclerosis (MS), which seriously impacts quality of life. Pharmacological management is an important component of conservative bowel management. The objective of this study was to first assemble a list of pharmacological agents (medications and medicated suppositories) used in current practice. Second, we systematically examined the current literature on pharmacological agents to manage neurogenic bowel dysfunction of individuals specifically with SCI or MS. We searched Medline, EMBASE and CINAHL databases up to June 2020. We used the GRADE System to provide a systematic approach for evaluating the evidence. Twenty-eight studies were included in the review. We found a stark discrepancy between the large number of agents currently prescribed and a very limited amount of literature. While there was a small amount of literature in SCI, there was little to no literature available for MS. There was low-quality evidence supporting rectal medications, which are a key component of conservative bowel care in SCI. Based on the findings of the literature and the clinical experience of the authors, we have provided clinical insights on proposed treatments and medications in the form of three case study examples on patients with SCI or MS.

Current State of Knowledge on Digital Rectal Stimulation in Individuals With Traumatic and Nontraumatic Spinal Cord Injury: A Scoping Review

OBJECTIVES

To map and characterize the nature of the evidence on the use of digital rectal stimulation for bowel management in individuals with spinal cord injury (SCI).

DATA SOURCES

Five electronic databases were searched (ie, MEDLINE, EMBASE, CINAHL, Cochrane CENTRAL, and Cochrane Incontinence Group) from 1990 to November 2019.

STUDY SELECTION

Articles that provided information on the use of digital rectal stimulation either alone or in combination with treatments were included. Title and abstract screening was split between 2 reviewers after reaching consensus on the first 100 studies screened. Full-texts were reviewed independently by 2 reviewers. Discrepancies were resolved by a third reviewer.

DATA EXTRACTION

The data extraction form was developed by 2 reviewers and piloted. Data were extracted by one reviewer and checked for accuracy by a second reviewer.

DATA SYNTHESIS

A total of 4841 studies were screened, including 425 full text articles; 33 articles were identified. Thirty-two studies focused solely on individuals with SCI and 1 study explored the experiences of caregivers of individuals with SCI. The majority of participants were aged between 30 and 59 years old. Most studies used quantitative methods (n=30, 91%). Fourteen of the studies (42%) were cross-sectional. Within experimental or quasiexperimental designs, digital rectal stimulation was commonly studied as an adjunct to other methods such as suppositories or enemas. Incontinence and defecation time were the most commonly examined outcomes.

CONCLUSION

There were few studies found that focus on digital rectal stimulation. Further studies examining experience, effectiveness, complications, and long-term outcomes are warranted.

Spinal cord injury and gut microbiota: A review

After spinal cord injury (SCI), intestinal dysfunction has a serious impact on physical and mental health, quality of life, and social participation. Recent data from rodent and human studies indicated that SCI causes gut dysbiosis. Remodeling gut microbiota could be beneficial for the recovery of intestinal function and motor function after SCI. However, few studies have explored SCI with focus on the gut microbiota and "microbiota-gut-brain" axis. In this review, the complications following SCI, including intestinal dysfunction, anxiety and depression, metabolic disorders, and neuropathic pain, are directly or indirectly related to gut dysbiosis, which may be mediated by "gut-brain" interactions. Furthermore, we discuss the research strategies that can be beneficial in this regard, including germ-free animals, fecal microbiota transplantation, probiotics, phages, and brain imaging techniques. The current microbial research has shifted from descriptive to mechanismal perspective, and future research using new technologies may further demonstrate the pathophysiological mechanism of association of SCI with gut microbiota, elucidate the mode of interaction of gut microbiota and hosts, and help develop personalized microbiota-targeted therapies and drugs based on microbiota or corresponding metabolites.

Tools for fecal incontinence assessment: lessons for inflammatory bowel disease trials based on a systematic review

BACKGROUND

Fecal incontinence is a disabling condition affecting up to 20% of women.

OBJECTIVE

We investigated fecal incontinence assessment in both inflammatory bowel disease and non-inflammatory bowel disease patients to propose a diagnostic approach for inflammatory bowel disease trials.

METHODS

We searched on Pubmed, Embase and Cochrane Library for all studies on adult inflammatory bowel disease and non-inflammatory bowel disease patients reporting data on fecal incontinence assessment from January 2009 to December 2019.

RESULTS

In total, 328 studies were included; 306 studies enrolled non-inflammatory bowel disease patients and 22 studies enrolled inflammatory bowel disease patients. In non-inflammatory bowel disease trials the most used tools were the Wexner score, fecal incontinence quality of life questionnaire, Vaizey score and fecal incontinence severity index (in 187, 91, 62 and 33 studies). Anal manometry was adopted in 41.2% and endoanal ultrasonography in 34.0% of the studies. In 142 studies (46.4%) fecal incontinence evaluation was performed with a single instrument, while in 64 (20.9%) and 100 (32.7%) studies two or more instruments were used. In inflammatory bowel disease studies the Wexner score, Vaizey score and inflammatory bowel disease quality of life questionnaire were the most commonly adopted tools (in five (22.7%), five (22.7%) and four (18.2%) studies). Anal manometry and endoanal ultrasonography were performed in 45.4% and 18.2% of the studies.

CONCLUSION

Based on prior validation and experience, we propose to use the Wexner score as the first step for fecal incontinence assessment in inflammatory bowel disease trials. Anal manometry and/or endoanal ultrasonography should be taken into account in the case of positive questionnaires.

Alterations in the fecal microbiota of patients with spinal cord injury

Objectives

Spinal cord injury (SCI) is associated with severe autonomic dysfunction. Patients with SCI often suffer from a lack of central nervous system control over the gastrointestinal system. Therefore, we hypothesized that patients with SCI would cause intestinal flora imbalance. We investigated alterations in the fecal microbiome in a group of patients with SCI.

Methods

Microbial communities in the feces of 23 patients and 23 healthy controls were investigated using high-throughput Illumina Miseq sequencing targeting the V3-V4 region of the 16S ribosomal RNA (rRNA) gene. The relative abundances between the fecal microbiota at the genus level in patients with SCI and healthy individuals were determined using cluster analysis.

Results

The structure and quantity of fecal microbiota differed significantly between patients with SCI and healthy controls, but the richness and diversity were not significantly different. A two-dimensional heatmap showed that the relative abundances of forty-five operational taxonomic units (OTUs) were significantly enriched either in SCI or healthy samples. Among these, 18 OTUs were more abundant in healthy controls than in patients with SCI, and 27 OTUs were more abundant in the SCI group than in healthy controls.

Conclusion

Our study showed that patients with SCI exhibited microbiome dysbiosis.

Diet in neurogenic bowel management: A viewpoint on spinal cord injury

The aim of this review is to offer dietary advice for individuals with spinal cord injury (SCI) and neurogenic bowel dysfunction. With this in mind, we consider health conditions that are dependent on the level of lesion including skeletal muscle atrophy, autonomic dysreflexia and neurogenic bladder. In addition, SCI is often associated with a sedentary lifestyle, which increases risk for osteoporosis and diseases associated with chronic low-grade inflammation, including cardiovascular and chronic kidney diseases. The Mediterranean diet, along with exercise and dietary supplements, has been suggested as an anti-inflammatory intervention in individuals with SCI. However, individuals with chronic SCI have a daily intake of whole fruit, vegetables and whole grains lower than the recommended dietary allowance for the general population. Some studies have reported an increase in neurogenic bowel dysfunction symptoms after high fiber intake; therefore, this finding could explain the low consumption of plant foods. Low consumption of fibre induces dysbiosis, which is associated with both endotoxemia and inflammation. Dysbiosis can be reduced by exercise and diet in individuals with SCI. Therefore, to summarize our viewpoint, we developed a Mediterranean diet-based diet and exercise pyramid to integrate nutritional recommendations and exercise guidelines. Nutritional guidelines come from previously suggested recommendations for military veterans with disabilities and individuals with SCI, chronic kidney diseases, chronic pain and irritable bowel syndrome. We also considered the recent exercise guidelines and position stands for adults with SCI to improve muscle strength, flexibility and cardiorespiratory fitness and to obtain cardiometabolic benefits. Finally, dietary advice for Paralympic athletes is suggested.

Narratives of long-term resilience: two cases of women aging with spinal cord injury

INTRODUCTION

Spinal cord injury (SCI) is a life-changing event that drastically affects a person's sense of identity, ability to participate, and quality of life (QOL). Researchers studying the coping process have often focused on identifying maladaptive behaviors and barriers, and less on positive psychology approaches emphasizing individual strengths. More recently, positive psychology constructs, such as resilience, have received greater attention from SCI researchers. Early and ongoing recognition of resilience in patients with SCI may provide important information to clinicians about adjustment and long-term management. Our purpose is to document patterns and indicators of resilience, using a narrative approach, during various stages of adjustment following SCI.

CASE PRESENTATIONS

Narrative case presentations are deriving from in-depth qualitative interviews with two women aged 63 and 52, living with SCI. Both had complete motor neurological injuries that incurred at 27 and 35 years, respectively. Each woman was interviewed twice, approximately 10 years apart (age 63 and 52, and age 54 and 42). Each demonstrated high levels of resilience through evolving roles of family and caregivers, inner personal strength, and participation in their respective communities. We highlight differences, similarities, and evolution of resilience factors in and between each case.

DISCUSSION

These cases illustrate examples of long-term resilience, adding richness to the resilience construct. Results provide knowledge that can be used to target rehabilitation interventions toward successful coping styles. In sharing these cases, we hope to assist clinicians and researchers to better recognize patterns of resilience in their own patients and study participants.

Recommendations for evaluation of neurogenic bladder and bowel dysfunction after spinal cord injury and/or disease

Objective: To provide an overview of clinical assessments and diagnostic tools, self-report measures (SRMs) and data sets used in neurogenic bladder and bowel (NBB) dysfunction and recommendations for their use with persons with spinal cord injury /disease (SCI/D).Methods: Experts in SCI/D conducted literature reviews, compiled a list of NBB related assessments and measures, reviewed their psychometric properties, discussed their use in SCI/D and issued recommendations for the National Institutes of Health (NIH), National Institute of Neurological Disorders and Stroke (NINDS) Common Data Elements (CDEs) guidelines.Results: Clinical assessments included 15 objective tests and diagnostic tools for neurogenic bladder and 12 for neurogenic bowel. Following a two-phase evaluation, eight SRMs were selected for final review with the Qualiveen and Short-Form (SF) Qualiveen and the Neurogenic Bowel Dysfunction Score (NBDS) being recommended as supplemental, highly-recommended due to their strong psychometrics and extensive use in SCI/D. Two datasets and other SRM measures were recommended as supplemental.Conclusion: There is no one single measure that can be used to assess NBB dysfunction across all clinical research studies. Clinical and diagnostic tools are here recommended based on specific medical needs of the person with SCI/D. Following the CDE for SCI studies guidelines, we recommend both the SF-Qualiveen for bladder and the NBDS for bowel as relatively short measures with strong psychometrics. Other measures are also recommended. A combination of assessment tools (objective and subjective) to be used jointly across the spectrum of care seems critical to best capture changes related to NBB and develop better treatments.

Spinal cord injury leads to atrophy in pelvic ganglia neurons

Among the most devastating sequelae of spinal cord injury (SCI) are genitourinary and gastrointestinal dysfunctions. Post-ganglionic neurons in pelvic ganglia (PG) directly innervate and regulate the function of the lower urinary tract (LUT), bowel, and sexual organs. A better understanding of how SCI affects PG neurons is essential to develop therapeutic strategies for devastating gastrointestinal and genitourinary complications ensuing after injury. To evaluate the impact of SCI on the morphology of PG neurons, we used a well- characterized rat model of upper thoracic SCI (T3 transection) that causes severe autonomic dysfunction. Using immunohistochemistry for neuronal markers, the neuronal profile size frequency distribution was quantified at one-, four-, and eight-weeks post SCI using recursive translation. Our investigation revealed an SCI-dependent leftward shift in neuronal size (i.e. atrophy), observable as early as one-week post injury. However, this effect was more pronounced at four and eight-weeks post-SCI. These findings demonstrate the first characterization of SCI-associated temporal changes in morphology of PG neurons and warrant further investigation to facilitate development of therapeutic strategies for recovery of autonomic functions following SCI.

The spinal cord-gut-immune axis as a master regulator of health and neurological function after spinal cord injury

Most spinal cord injury (SCI) research programs focus only on the injured spinal cord with the goal of restoring locomotor function by overcoming mechanisms of cell death or axon regeneration failure. Given the importance of the spinal cord as a locomotor control center and the public perception that paralysis is the defining feature of SCI, this "spinal-centric" focus is logical. Unfortunately, such a focus likely will not yield new discoveries that reverse other devastating consequences of SCI including cardiovascular and metabolic disease, bladder/bowel dysfunction and infection. The current review considers how SCI changes the physiological interplay between the spinal cord, the gut and the immune system. A suspected culprit in causing many of the pathological manifestations of impaired spinal cord-gut-immune axis homeostasis is the gut microbiota. After SCI, the composition of the gut microbiota changes, creating a chronic state of gut "dysbiosis". To date, much of what we know about gut dysbiosis was learned from 16S-based taxonomic profiling studies that reveal changes in the composition and abundance of various bacteria. However, this approach has limitations and creates taxonomic "blindspots". Notably, only bacteria can be analyzed. Thus, in this review we also discuss how the application of emerging sequencing technologies can improve our understanding of how the broader ecosystem in the gut is affected by SCI. Specifically, metagenomics will provide researchers with a more comprehensive look at post-injury changes in the gut virome (and mycome). Metagenomics also allows changes in microbe population dynamics to be linked to specific microbial functions that can affect the development and progression of metabolic disease, immune dysfunction and affective disorders after SCI. As these new tools become more readily available and used across the research community, the development of an "ecogenomic" toolbox will facilitate an Eco-Systems Biology approach to study the complex interplay along the spinal cord-gut-immune axis after SCI.

Fecal Incontinence and Neurogenic Bowel Dysfunction in Women With Traumatic and Nontraumatic Spinal Cord Injury

BACKGROUND

In the literature on chronic spinal cord injury, neurogenic bowel dysfunction has not gained as much attention as bladder dysfunction, the traditional cause of morbidity and mortality.

OBJECTIVE

The purpose of this study was to investigate the prevalence of fecal incontinence and conditions associated with fecal incontinence in women with spinal cord injury.

DESIGN

In this cross-sectional study, data were obtained from an electronic medical chart database containing standardized questionnaires.

SETTINGS

The study was conducted at the Clinic for Spinal Cord Injuries, Rigshospitalet, where patients from Eastern Denmark are followed every second year.

PATIENTS

Women who sustained a spinal cord injury between September 1999 and August 2016 and attended a consultation between August 2010 and August 2016 were included. If the bowel function questionnaire had never been answered, the woman was excluded.

MAIN OUTCOME MEASURES

The newest completed questionnaire regarding bowel function, urinary bladder function, quality of life, neurologic level/completeness/etiology of injury, mobility status, and spousal relationship was obtained from each woman.

RESULTS

Among the 733 identified women, 684 were included, of whom only 11% had a complete motor injury. A total of 35% experienced fecal incontinence, varying from daily to less than monthly, and 79% experienced bowel dysfunction. Fecal incontinence was associated with urinary incontinence and decreased satisfaction with life in general and psychological health. In the multivariate logistic regression analysis, the odds of daily-monthly fecal incontinence increased significantly with increasing age, myelomeningocele as etiology of injury, a more complete paraplegic injury, use of wheelchair permanently, and follow-up <3 months.

LIMITATIONS

There were missing data in the study, including 12% with no answer to the fecal incontinence question.

CONCLUSIONS

Fecal incontinence is a severe problem that affects more than one third of women with spinal cord injury and is associated with decreased quality of life. The present study emphasizes that women with myelomeningocele, a more complete paraplegic injury, older age, short follow-up period, and permanent wheelchair use have an increased risk of fecal incontinence. See Video Abstract at http://links.lww.com/DCR/A985. INCONTINENCIA FECAL Y DISFUNCIÓN NEUROGÉNICA DEL INTESTINO EN MUJERES CON LESIÓN DE LA MEDULA ESPINAL TRAUMÁTICA Y NO TRAUMÁTICA: En la literatura sobre la lesión crónica de la médula espinal, la disfunción neurógena del intestino no ha ganado tanta atención como la disfunción de la vejiga, la causa tradicional de morbilidad y mortalidad. OBJETIVÓ:: Investigar la prevalencia de la incontinencia fecal y las condiciones asociadas con la incontinencia fecal en mujeres con lesión de la médula espinal. DISEÑO:: En este estudio transversal, los datos se obtuvieron de una base de datos de registros médicos electrónicos que contenía cuestionarios estandarizados. CONFIGURACIÓN:: Clínica para Lesiones de la Médula Espinal, Rigshospitalet, donde los pacientes del Este de Dinamarca son seguidos cada dos años.

PACIENTES

Mujeres que sufrieron una lesión en la médula espinal entre Septiembre de 1999 a Agosto de 2016 y asistieron a una consulta entre Agosto de 2010 a Agosto de 2016. Si nunca se había respondido el cuestionario de la función intestinal, se excluyó a la mujer.

MEDIDA DE RESULTADOS PRINCIPALES

Se obtuvo el cuestionario más reciente y completo sobre la función intestinal, la función de la vejiga urinaria, la calidad de vida, el nivel neurológico/integridad/etiología de la lesión, el estado de movilidad y la relación con el cónyuge.

RESULTADOS

Entre las 733 mujeres identificadas, se incluyeron 684, de las cuales solo el 11% tenía una lesión de motor completa. Un total de 35% experimentó incontinencia fecal que varió de diaria a menos de mensual, y el 79% experimentó disfunción intestinal. La incontinencia fecal se asoció con incontinencia urinaria y disminución de la satisfacción de vida en general y con la salud psicológica. En el análisis de regresión logística multivariable, las probabilidades de incontinencia fecal diaria-mensual aumentaron significativamente con el aumento de la edad, el mielomeningocele como etiología de la lesión, una lesión parapléjica más completa, el uso de silla de ruedas de forma permanente y el seguimiento <3 meses.

LIMITACIONES

Faltaban datos en el estudio, incluyendo el 12% sin respuesta a la pregunta sobre incontinencia fecal.

CONCLUSIONES

La incontinencia fecal es un problema grave que afecta a más de un tercio de las mujeres con lesión de la médula espinal y se asocia con una disminución de calidad de vida. El presente estudio enfatiza que las mujeres con mielomeningocele, una lesión parapléjica más completa, mayor edad, corto período de seguimiento y uso de silla de ruedas permanente tienen un mayor riesgo de incontinencia fecal. Vea el Video del Resumen en http://links.lww.com/DCR/A985.

Dietary management of neurogenic bowel in adults with spinal cord injury: an integrative review of literature

OBJECTIVE

To examine the literature for current evidence on the dietary management of neurogenic bowel in adults with spinal cord injuries (SCIs).

BACKGROUND

Neurogenic bowel dysfunction presenting as faecal incontinence or constipation is a common occurrence in individuals with SCI. It poses numerous challenges for the management of bowel function and has a significant impact on quality of life following SCI. Dietary management is a common, early treatment strategy as a conservative approach for neurogenic bowel; however, current recommendations rely on expert opinion only.

METHODS

An integrative review of the literature using a systematic search was conducted using Medline, Embase, CINAHL, Proquest, and Google Scholar. The selected articles were critically appraised using Critical Appraisal Skills Programme checklists by two independent reviewers. The risk of bias of studies and the quality of evidence for outcomes were assessed using the risk of bias tool and the grading of recommendations, assessment, development, and evaluation system in the Cochrane handbook for systematic review of interventions.

RESULTS

Thirteen studies that met the inclusion criteria were identified exploring a variety of diet-related factors: foods, dietary behaviours, and multiple interventions including a diet plan. However, the dietary management strategies used varied significantly between studies, posing challenges to ascertain its efficacy.

CONCLUSION

Given the low level of evidence and paucity of data on dietary management of neurogenic bowel, the efficacy of dietary strategies (alone or in combination with others) in managing neurogenic bowel cannot be substantiated from the studies identified. Therefore, more robust studies are warranted to bridge this gap.IMPLICATIONS FOR REHABILITATIONConsumption of ∼15 g dietary fibre is shown to be beneficial in managing neurogenic bowel in SCI.Further research is required to strengthen evidence for fibre recommendations and investigating the potential benefits of traditional and non-traditional dietary approaches.

Contextualizing the lived experience of quality of life for persons with spinal cord injury: A mixed-methods application of the response shift model

Objective: The objective of this study was to gain greater insight into individuals' quality of life (QOL) definitions, appraisals, and adaptations following spinal cord injury (SCI). Design: A mixed-methods design, applying the Schwartz and Sprangers response shift (RS) model. RS is a cognitive process wherein, in response to a change in health status, individuals change internal standards, values, or conceptualization of QOL Setting: Community-dwelling participants who receive medical treatment at a major Midwestern medical system and nearby Veterans' Affairs hospital. Participants: A purposive sample of participants with SCI (N = 40) completed semi-structured interviews and accompanying quantitative measures. Interventions: Not applicable. Outcome Measures: Qualitative data were analyzed using content analysis to identify themes. Analysis of variance were performed to detect differences based on themes and QOL, well-being, and demographic and injury characteristics. Results: Four RS themes were identified, capturing the range of participant perceptions of QOL. The themes ranged from complete RS, indicating active engagement in maintaining QOL, to awareness and comparisons redefining QOL, to a relative lack of RS. Average QOL ratings differed as a function of response shift themes. PROMIS Global Health, Anxiety, and Depression also differed as a function of RS themes. Conclusion: The RS model contextualizes differences in QOL definitions, appraisals, and adaptations in a way standardized QOL measures alone do not.

National Survey of Bladder and Gastrointestinal Dysfunction in People with Spinal Cord Injury

Small-scale studies indicate that spinal cord injury (SCI) may lead to significant gastrointestinal and bladder dysfunction. However, how the prevalence of chronic disease related to these dysfunctions compares with non-SCI individuals and whether there are robust relationships to level and severity of injury are still unclear. Here, our goal was to provide high-level evidence on the association between bladder and gastrointestinal dysfunction and SCI using population-level data from the Canadian Community Health Survey (CCHS) and the SCI Community Survey. Data from more than 60,000 individuals in the 2010 CCHS and 1500 individuals with SCI from the SCI Community Survey were analyzed. We used bi-variable and multi-variable logistic regression to examine relationships between explanatory and outcome variables. We found that SCI was associated with increased odds of urinary incontinence (adjusted odds ratio [aOR] = 5.0, 95% confidence interval [CI]: 3.4-7.1), bowel disorders (aOR = 2.3, CI: 1.5-3.4), as well as gastric ulcers (aOR: 3.3, CI: 2.1-4.8), even after adjusting for key confounding variables. Additionally, we found that complete SCI was associated with increased odds of urinary tract infections (aOR = 2.0, CI: 1.6-2.5) and bowel incontinence (aOR = 2.1, CI: 1.7-2.6). Individuals with SCI are at increased odds for having bladder and gastrointestinal dysfunction, certain aspects of which are dependent on the level and severity of injury. Targeted intervention and prevention strategies to manage bladder and bowel problems after SCI should be a priority for both caregivers and policy makers.

Gut microbiota dysbiosis in male patients with chronic traumatic complete spinal cord injury

BACKGROUND

Neurogenic bowel dysfunction (NBD) is a major physical and psychological problem in patients with spinal cord injury (SCI), and gut dysbiosis is commonly occurs in SCI. Here, we document neurogenic bowel management of male patients with chronic traumatic complete SCI in our centre and perform comparative analysis of the gut microbiota between our patients and healthy males.

METHODS

A total of 43 male patients with chronic traumatic complete SCI (20 with quadriplegia and 23 with paraplegia) and 23 healthy male adults were enrolled. Clinical data and fresh stool specimens were collected from all participants. Face-to-face interviews were conducted to survey the neurogenic bowel management of 43 patients with SCI. Gut microbiomes were analysed by sequencing of the V3-V4 region of the 16S rRNA gene.

RESULTS

NBD was common in adult male patients with chronic traumatic complete SCI. Patients with quadriplegia exhibited a longer time to defecate than did those with paraplegia and had higher NBD scores and heavier neurogenic bowel symptoms. The diversity of the gut microbiota in the SCI group was reduced, and the structural composition was different from that of the healthy adult male group. The abundance of Veillonellaceae and Prevotellaceae increased, while Bacteroidaceae and Bacteroides decreased in the SCI group. The abundance of Bacteroidaceae and Bacteroides in the quadriplegia group and Acidaminococcaceae, Blautia, Porphyromonadaceae, and Lachnoclostridium in the paraplegia group were significantly higher than those in the healthy male group. Serum biomarkers (GLU, HDL, CR, and CRP), NBD defecation time and COURSE had significant correlations with microbial community structure. Microbial community structure was significantly associated with serum biomarkers (GLU, HDL, CR, and CRP), NBD defecation time, and COURSE.

CONCLUSIONS

This study presents a comprehensive landscape of the gut microbiota in adult male patients with chronic traumatic complete SCI and documents their neurogenic bowel management. Gut microbiota dysbiosis in SCI patients was correlated with serum biomarkers and NBD symptoms.

Neurogenic bowel management for the adult spinal cord injury patient

BACKGROUND

Bowel function can be markedly changed after a spinal cord injury (SCI). These changes, and the care associated with managing the changes, can greatly impact a person's quality of life over a lifetime.

PURPOSE

The purpose of the SIU-ICUD workgroup was to identify, assess, and summarize evidence and expert opinion-based themes and recommendations regarding bowel function and management in SCI populations.

METHODS

As part of the SIU-ICUD joint consultation of Urologic Management of the Spinal Cord Injury, a workgroup was formed and comprehensive literature search of English language manuscripts regarding bowel physiology and management plans for the SCI patient. Articles were compiled, and recommendations in the chapter are based on group discussion and follow the Oxford Centre for Evidence-based Medicine system for levels of evidence (LOEs) and grades of recommendation (GORs).

RESULTS

Neurogenic bowel symptoms are highly prevalent in the SCI population. Patients with injuries above the conus medullaris have increased bowel motility and poor anorectal sphincter relaxation. Patients with injuries below the conus are more likely to have an areflexic colon and low sphincter tone. Conservative management strategies include diet modification and anorectal stimulation. There are few evidence-based pharmacologic interventions, which improve fecal transit time. Intestinal ostomy can be an effective treatment for reducing hours spent per week on bowel management and colostomy may be easier to manage than ileostomy due to solid vs liquid stool.

CONCLUSIONS

By understanding physiology and treatment options, patients and care teams can work together to achieve goals and maximize quality of life after injury.

Neurogenic Bowel Dysfunction in Patients with Neurogenic Bladder

Patients with primary neurologic conditions often experience urinary and bowel dysfunction due to loss of sensory and/or motor control. Neurogenic bowel dysfunction is frequently characterized by both constipation and fecal incontinence. In general, the management of neurogenic bowel dysfunction has been less well studied than bladder dysfunction despite their close association.. It is widely accepted that establishment of a multifaceted bowel regimen is the cornerstone of conservative management. Continuing assessment is necessary to determine need for more invasive interventions. In the clinical setting, the Urologist may be the principle provider addressing bowel concerns in addition to bladder dysfunction, and furthermore, treatment of one often impacts the other. Future directions should include development of follow up and management guidelines that address the comprehensive care of this patient population.