Survival, neurological recovery and morbidity after spinal cord injuries following road accidents in Israel

The global burden of pressure ulcers among patients with spinal cord injury: a systematic review and meta-analysis

BACKGROUND

Pressure ulcers (PU), one of the common challenging public health problems affecting patient with spinal cord injury. PUs occurs over bony areas of the body where pressure and tissue distortion is greatest. It has a significant impact to the patient and health care system. Moreover, it has psychological, physical, social burden and decrease the quality of life (QoL) of patients. Despite its serious complications, limited evidence is available on the global magnitude of pressure ulcers among patient with spinal cord injury. Hence, this review and meta-analysis aimed to estimate the global magnitude of pressure ulcers among patient with spinal cord injury.

METHODS

PubMed, Scopus, Google Scholar, African Journals Online, PsycINFO, and Web of Science were systematically searched to retrieve related articles. The Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guideline was followed. DerSimonian and Laird random-effects model was applied to obtain the pooled effect size. To investigate heterogeneity across the included studies, I2 test was employed. Publication bias was examined using funnel plot and Egger's regression test statistic. Sensitivity analysis was deployed to see the effect of a single study on the overall estimation. Analysis was done using STATA™ Version 14 software.

RESULTS

A total of 24 studies which comprises of 600,078 participants were included in this study. The global pooled magnitude of pressure ulcers among patients with spinal cord injury was 32.36% (95% CI (28.21, 36.51%)). Based on the subgroup analysis, the highest magnitude of pressure ulcer was observed in Africa 41.19% (95% CI: 31.70, 52.18).

CONCLUSION

This systematic review and meta-analysis revealed that about one in three patients with spinal cord injury had pressure ulcers. This implies that the overall global magnitude of pressure ulcer is relatively high. Therefore, policy maker and other concerned body should be design country context- specific preventive strategies to reduce the burden of pressure ulcers in patients with spinal cord injury.

Bone mesenchymal stem cell-conditioned medium attenuates the effect of oxidative stress injury on NSCs by inhibiting the Notch1 signaling pathway

Numerous studies have demonstrated the therapeutic effect of bone mesenchymal stem cells on spinal cord injury (SCI), especially on neural stem cells (NSCs). However, the predominant mechanisms of bone mesenchymal stem cells (BMSCs) are unclear. Recently, some researchers have found that paracrine signaling plays a key role in the therapeutic capacity of BMSCs and emphasized that the protective effect of BMSCs may be due to paracrine factors. In this study, we aimed to investigate the potential mechanisms of BMSCs to protect NSCs. NSCs were identified by immunocytochemistry. The oxidative stress environment was simulated by H₂ O₂ (50, 100, 200 μM) for 2 h. The apoptotic rate of the NSCs was detected via flow cytometry. Lactate dehydrogenase (LDH), malondialdehyde (MDA), and superoxide dismutase (SOD) activity were evaluated via corresponding assay kits. Western blot was used to detect the expressions of Notch1, HES1, caspase-3, cleave caspase-3, Bax, and Bcl-2. We found that H₂ O₂ could significantly induce the apoptosis of NSCs, increase LDH, MDA levels, and decrease SOD activity by activating the Notch1 signaling pathway. DAPT (the specific blocker of Notch1) and BMSC-conditioned medium (BMSC-CM) could significantly prevent the apoptotic effect and oxidative stress injury on NSCs that were treated with H₂ O₂ . We also revealed that BMSC-CM could decrease the expression of Notch1, Hes1, cleave caspase-3, Bax, and increases the expression of Bcl-2 in NSCs, which was induced by H₂ O₂ . These results have revealed that BMSC-CM can neutralize the effect against oxidative stress injury on the apoptosis of NSCs by inhibiting the Notch1 signaling pathway.

Mortality and longevity after a spinal cord injury: systematic review and meta-analysis

BACKGROUND/AIMS

Mortality and longevity studies of spinal cord injury (SCI) are essential for informing healthcare systems and policies. This review evaluates the current evidence among people with SCIs worldwide in relation to the WHO region and country income level; demographic and lesion characteristics; and in comparison with the general population.

METHODS

A systematic review of relevant databases for original studies. Pooled estimates were derived using random effects meta-analysis, restricted to traumatic SCI.

RESULTS

Seventy-four studies were included. In-hospital mortality varied, with pooled estimates of 24.1% (95% confidence interval (CI) 14.1-38.0), 7.6% (95% CI 6.3-9.0), 7.0% (95% CI 1.5-27.4), and 2.1% (95% CI 0.9-5.0) in the WHO regions of Africa, the Americas, Europe and Western Pacific. The combined estimate for low- and middle-income countries was nearly three times higher than for high-income countries. Pooled estimates of first-year survival were 86.5% (95% CI 75.3-93.1), 95.6% (95% CI 81.0-99.1), and 94.0% (95% CI 93.3-94.6) in the Americas, Europe and Western Pacific. Pooled estimates of standardized mortality ratios in tetraplegics were 2.53 (2.00-3.21) and 2.07 (1.47-2.92) in paraplegics.

CONCLUSION

This study found substantial variation in mortality and longevity within the SCI population, compared to the general population, and between WHO regions and country income level. Improved standardization and quality of reporting is needed to improve inferences regarding the extent to which mortality outcomes following an SCI are related to healthcare systems, services and policies.

Pressure ulcers in people with spinal cord injury in developing nations

STUDY DESIGN

Literature review.

OBJECTIVES

To explore the prevalence or incidence, risk factors, and costs of pressure ulcers among individuals with spinal cord injury (SCI), specifically in the context of the developing world. To highlight important targets for intervention and research for pressure ulcer management the world over.

SETTING

World Bank 'low-income' and 'middle-income' countries with a gross national income per capita <$12 746.

METHODS

PubMed search.

RESULTS

SCI-associated pressure ulcers are very prevalent in developing nations; however, reported prevalence and incidence numbers are highly variable. Risk factors for pressure ulcers are similar in developed and developing countries however many of the risk factors are more prevalent in developing nations.

CONCLUSION

SCI-associated pressure ulcers are common but can be prevented in the developing world. Key targets for interventions include acute care, nurse-to-patient ratios, support surfaces and education.

Spinal cord injuries sustained in road crashes are not on the decrease in france: a study based on epidemiological trends

Traumatic spinal cord injuries (SCI) are rare but extremely costly. In order to improve the modelling of inclusion criteria for studies of SCI it is necessary to determine what epidemiological trends affect SCI. Using the Rhone Registry, which contains all the casualties resulting from road crashes in the Rhône département of France and codes their injuries using the Abbreviated Injury Scale (AIS), we describe the epidemiological trends that affect spinal cord injury (SCI), major spinal trauma (MST) and severe injuries (AIS4+) to other body regions between two periods 1996-2001 and 2003-2008. Although there has been a marked decrease (35%) in the incidence of casualties after a road traffic crash, and reductions of 22% in the incidence of MST and 33% in that of severe injuries (AIS4+) (p<0.001), for SCI the incidence rate and number of casualties have remained surprisingly stable. In the second period, there was no change in the incidence of SCI resulting from road traffic crashes, nor in the associated fatality, mortality and survival rates. The incidence for car users was significantly lower in the second period. This contrasts with the incidences for motorcyclists and for the group including pedestrians and cyclists which were respectively 47% and 77% higher in the second period. The median age of the casualties, the age-adjusted incidence of SCI and the number of associated injuries were also higher in the second period. We have observed a marked reduction in the incidence of road trauma including the most severe injuries, but not SCI. The higher proportion of motorcyclists, the increase in the age of casualties and the greater presence of multiple injuries are new factors in the epidemiology of SCI after a road crash.

Traumatic spinal cord injuries--incidence, mechanisms and course

BACKGROUND

The primary purpose of this article is to provide an overview of demography, neurological level of injury, extent of lesion, incidence, prevalence, injury mechanisms as well as lethality and causes of death associated with traumatic spinal cord injuries.

MATERIAL AND METHOD

A literature search was carried out in PubMed, with the search words "traumatic spinal cord injury"/"traumatic spinal cord injuries" together with "epidemiology", and "spinal cord injury"/"spinal cord injuries" together with "epidemiology".

RESULTS

The reported annual incidence of traumatic spinal cord injuries varies from 2.3 per million in a study from Canada to 83 per million in Alaska. The prevalence is given as ranging from 236 per million in India to 1800 per million in the USA. The average age at the time of injury varies from 26.8 years in Turkey to 55.5 years in the USA. The ratio of men to women varies from 0.9 in Taiwan to 12.0 in Nigeria. The most frequent cause of injury is traffic accidents, followed by falls, violence and sports/leisure activity incidents. Patients with traumatic spinal cord injuries have a higher lethality than the normal population. The most frequent causes of death today are airway problems, heart disease and suicide.

INTERPRETATION

There are large geographical differences in reported incidence, prevalence and lethality. This is attributable to differences in definition, inclusion, classification and patient identification procedures in the various studies, together with geographical and cultural differences and differences in prehospital and hospital treatment.

Locomotor training using a robotic device in patients with subacute spinal cord injury

STUDY DESIGN

Quasi experiment; single experimental group with matched historical control.

OBJECTIVES

To evaluate the effect of an additive robotic-assisted gait training (RAGT) using the Lokomat system on the neurological and functional outcomes of patients with subacute spinal cord injury (SCI).

SETTING

Department of Physical Medicine and Rehabilitation.

METHODS

A total of 28 subacute SCI patients were treated by RAGT, 2-3 times a week, 30-45 min every treatment, concomitantly with regular physiotherapy. As control, for each patient, we matched a comparable patient treated in the same department in previous years, according to age, severity of injury, level of injury and cause. The main outcomes were: the AIS (American Spinal Injury Association impairment scale) the spinal cord independence measurement (SCIM) score, the walking index for SCI II (WISCI II) and functional ambulation category scale (FAC).

RESULTS

At the end of rehabilitation, both groups showed a significant improvement in both the FAC score and the WISCI score (P<0.01) without differences between the groups. Functional abilities, according to the SCIM score, were also improved, with a significant interaction effect; the RAGT patients improve by 30±20 points, which was significantly greater gain as compared with the controls, 21±14 points (P=0.05). This improvement was mainly due to the change in the SCIM motor subscales.

CONCLUSION

RAGT is an important additional treatment to improve the functional outcome of subacute SCI patients. Larger, controlled studies are still required to determine the optimal timing and protocol design for the maximal efficacy of RAGT in SCI patients.

Survival after spinal cord injury: a systematic review

Spinal cord injury (SCI) leading to neurological deficits produces long-term effects that persist over a lifetime. Survival analysis of patients with SCI, at individual and population level, is important for public health management and the assessment of treatment achievements. The current study evaluated survival following traumatic and non-traumatic SCI worldwide. A systematic review was conducted, and all included papers were assessed for quality using a purposely designed assessment form. Survival data were presented in Kaplan-Meier curves and compared using the log-rank test. Sixteen studies were included of which 11 concerned traumatic SCI, four non-traumatic SCI, and one both. Crude standard mortality rates (SMRs) revealed that overall mortality in SCI is up to three times higher than in the general population. Survival rates were statistically significantly lower in non-traumatic SCI than in traumatic SCI (log-rank p = 0.000). Age at injury, neurological level, extent of lesion, and year of injury have been described as predictors of survival. Causes of death stem from secondary complications, with failure of the respiratory system being the leading cause. This is the first systematic literature review on survival analysis following SCI worldwide. An increase in survival over time was found. However, the SMRs of individuals with SCI still exceed those of an age-matched non-disabled population, mainly due to secondary complications. Lower survival rates were observed in non-traumatic SCI compared with traumatic SCI.

Surgical management of pressure ulcers during inpatient neurologic rehabilitation: outcomes for patients with spinal cord disease

BACKGROUND/OBJECTIVE

To study efficacy of surgery in the management of pressure ulcers and evaluate the effect of simultaneous comprehensive rehabilitation in improving outcome.

METHOD

Prospective, follow-up study.

SETTING

Neurologic rehabilitation unit of a tertiary care center.

PARTICIPANTS

Patients with spinal cord diseases who had stage III/IV pressure ulcers underwent surgical reconstruction and inpatient rehabilitation in 2005 with a minimum follow-up duration of 1 year.

OUTCOME MEASURES

Ulcer healing rate, postoperative complications, ulcers recurrence rate, and neurologic (ASIA grade), and functional recovery (Barthel Index).

STATISTICAL ANALYSIS

Frequency analysis and paired t test on SPSS 13.0.

RESULTS

Surgical intervention was carried out in 25 participants (19 men, 6 women), having a total of 39 ulcers (13 Stage III, 23 Stage IV, 3 unstaged). Surgeries performed were debridement (3), split skin grafting (13), and flap mobilization and closure (23). Only 4 participants (16.6%) had initial complications: wound dehiscence (2) and delayed graft healing (2). Follow-up rate was 92.0% (23/25 patients), with a duration of 12 to 21 months (mean, 15.4 +/- 7.45 months), and only 4 participants (17.3%) had ulcer recurrence. The majority of participants (13 of 25; 56.5%) improved neurologically on ASIA grade and functional evaluation on Barthel Index, suggesting statistically significant improvement (P < 0.005).

CONCLUSIONS

All outcome variables showed significant improvement at follow-up with good ulcer healing rate (87.0%), low initial complication (16.6%) and recurrence rates (17.3%), and good neurologic (56.5%) and functional (P < 0.005) recovery. Timely surgical interventions are necessary for Stage III to IV pressure ulcers, and simultaneous inpatient rehabilitation significantly improves outcome of patients with spinal cord disease.

Properties and outcomes of spinal rehabilitation units in four countries

OBJECTIVE

Compare rehabilitation after spinal cord lesions (SCL) in different countries.

DESIGN

Multicenter comparative study.

SETTING

Four spinal rehabilitation units, in Denmark, Russia, Lithuania and Israel.

SUBJECTS

199 SCL patients.

INTERVENTIONS

Information was collected about unit properties, rehabilitation objectives, American Spinal Injury Association (ASIA) scale and spinal cord independence measure (SCIM) assessments, and patient data. chi (2)-test, t-test, ANOVA and ANCOVA were used for statistical analysis.

MAIN OUTCOME MEASURES

Time from lesion onset to admission for rehabilitation (TAR), length of stay in rehabilitation (LOS), SCIM and spinal cord ability realization measurement index (SCI-ARMI) scores, SCIM gain, SCI-ARMI gain and rehabilitation efficiency (RE).

RESULTS

Differences were found between the units in rehabilitation objectives, facilities and special equipment for rehabilitation. Staff/bed ratio was 1.7 in Lithuania and Denmark, 1.1 in Israel and 0.9 in Russia. Russian patients were the youngest and had the most severe lesions among participating units. Admission SCIM and SCI-ARMI were the lowest in Israel: 25.1+/-17.2 and 34.3+/-17.3. TAR was highest in Russia (12.4 month) and lowest in Israel (2 weeks; P<0.01). LOS was longest in Denmark (176.9 days; P<0.001). SCIM score at the end of rehabilitation was highest in Denmark (67.3+/-23). SCIM gain and SCI ARMI gain were highest in Israel (36.9+/-18.3 and 38.5+/-19.4, respectively) and lowest in Russia (P<0.001). RE was highest in Lithuania and lowest in Denmark (P<0.001).

CONCLUSIONS

In the participating units, SCL rehabilitation outcomes depend on SCL severity and unit-specific properties. A moderately delayed rehabilitation with long LOS achieved high functioning, and early or slightly delayed rehabilitation combined with shorter LOS achieved high functional gain or efficiency.