Epidemiology of Traumatic Spinal Cord Injury in Developing Countries from 2009 to 2020: A Systematic Review and Meta-Analysis.

INTRODUCTION: Traumatic spinal cord injury (TSCI) is a catastrophic event with a considerable health and economic burden on individuals and countries. This study was performed to update an earlier systematic review and meta-analysis of epidemiological properties of TSCI in developing countries published in 2013. METHODS: Various search methods including online searching in database of EMBASE and PubMed, and hand searching were performed (2012 to May 2020). The keywords "Spinal cord injury," "epidemiology," "incidence," and "prevalence" were used. Based on the definition of developing countries by the International Monetary Fund, studies related to developing countries were included. Data selection was according to PRISMA guidelines. The quality of included studies was evaluated by Joanna Briggs Institute Critical Appraisal Tools. Results of meta-analysis were presented as pooled frequency, and forest, funnel, and drapery plots. RESULTS: We identified 47 studies from 23 developing countries. The pooled incidence of TSCI in developing countries was 22.55/million/year (95% CI: 13.52; 37.62/million/year). Males comprised 80.09% (95% CI: 78.29%; 81.83%) of TSCIs, and under 30 years patients were the most affected age group. Two leading etiologies of TSCIs were motor vehicle crashes (43.18% [95% CI: 37.80%; 48.63%]) and falls (34.24% [95% CI: 29.08%; 39.59%], respectively). The difference among the frequency of complete injury (49.47% [95% CI: 43.11%; 55.84%]) and incomplete injury (50.53% [95% CI: 44.16%; 56.89%]) was insignificant. The difference among frequency of tetraplegia (46.25% [95% CI: 37.78%; 54.83%]) and paraplegia (53.75% [95% CI: 45.17%; 62.22%]) was not statistically significant. The most prevalent level of TSCI was cervical injury (43.42% [95% CI: 37.38%; 49.55%]). CONCLUSION: In developing countries, TSCIs are more common in young adults and males. Motor vehicle crashes and falls are the main etiologies. Understanding epidemiological characteristics of TSCIs could lead to implant-appropriate cost-effective preventive strategies to decrease TSCI incidence and burden.

Paraplegia After Open Surgical Repair Versus Thoracic Endovascular Aortic Repair for Thoracic Aortic Disease: A Retrospective Analysis of Japanese Administrative Data.

OBJECTIVES: To comparatively examine the risk of postoperative paraplegia between open surgical descending aortic repair and thoracic endovascular aortic repair (TEVAR) among patients with thoracic aortic disease. DESIGN: Retrospective cohort study. SETTING: Acute-care hospitals in Japan. PARTICIPANTS: A total of 6,202 patients diagnosed with thoracic aortic disease. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: The main outcome of this study was the incidence of postoperative paraplegia. Multiple logistic regression models, using inverse probability of treatment weighting and an instrumental variable (ratio of TEVAR use to open surgical repair and TEVAR uses), showed that the odds ratios of paraplegia for TEVAR (relative to open surgical descending aortic repair) were 0.81 (95% confidence interval: 0.42-1.59; p = 0.55) in the inverse probability of treatment-weighted model and 0.88 (0.42-1.86; p = 0.75) in the instrumental-variable model. CONCLUSIONS: There were no statistical differences in the risk of paraplegia between open surgical repair and TEVAR in patients with thoracic aortic disease. Improved perioperative management for open surgical repair may have contributed to the similarly low incidence of paraplegia in these two surgery types.

Epidemiological changes in traumatic spinal cord injuries for the last 30 years (1990-2019) in South Korea.

STUDY DESIGN: Retrospective descriptive study. OBJECTIVES: To identify the characteristics of and epidemiological trends in traumatic spinal cord injuries (TSCIs) in Korea from 1990 to 2019. SETTING: National Rehabilitation Center affiliated with the Ministry of Health and Welfare in Korea. METHODS: The medical records of 3395 individuals with TSCIs were retrospectively reviewed. Three groups were formed based on onset period (1990-1999, 2000-2009, and 2010-2019) and six groups based on age (≤15, 16-30, 31-45, 46-60, 61-75, and ≥76 years). Pearson's chi-square and analysis of variance tests were used for statistical analysis. RESULTS: From 1990 to 2019, the mean age (standard deviation, [SD]) at the time of injury increased from 32.4 (SD = 12.4) years in the 1990s to 47.1 (SD = 16.2) years in the 2010s (F = 222.317 p = <0.001). Land transport and falls were the most common causes of TSCIs. The number of injuries from land transport gradually decreased, while that from falls increased (24.9% in 1990s to 46.3% in 2010s [χ2 = 134.415 p < 0.001]). In the >60 years group, falls were the most common cause of injury, which resulted in 42.9% TSCIs in the 1990s to 59.1% in the 2010s (χ2 = 10.398, p > 0.05). Tetraplegia (n = 769, 58.6%) was more common than paraplegia; incomplete tetraplegia (entire population: =564, 43%; >60 years group: n = 186, 43%) was the highest in the 2010s. CONCLUSIONS: Falls have been the most common cause of TSCIs after 2010s. Implementing national education and campaigns for preventing falls is important to reduce/prevent TSCIs caused by falls in the aged population.

Methodology and study population of the second Swiss national community survey of functioning after spinal cord injury.

STUDY DESIGN: Descriptive study of the second community survey of the Swiss Spinal Cord Injury Cohort Study (Survey 2017) conducted between 03/2017 and 03/2018. OBJECTIVES: To describe the methodology, recruitment results, characteristics of participants and non-participants, and non-response of the Survey 2017. SETTING: Community. METHODS: Description of the sampling strategy and sampling frame. Recruitment results and characteristics of participants and non-participants of the two Survey 2017 questionnaire modules were analyzed using descriptive statistics. Determinants of survey participation were examined using multivariable logistic regression, and the impact of non-response bias on survey results was evaluated using inverse-probability weighting. RESULTS: Out of 3959 persons who met the eligibility criteria, 1530 responded to module 1 (response rate 38.6%) and 1294 to module 2 (response rate 32.7%) of the Survey 2017. Of the 4493 invited persons, 1549 had participated in the first SwiSCI community survey conducted in 2012/2013. Of these, 1332 were invited to the Survey 2017 and 761 participated in module 1 (response rate 58.9%) and 685 in module 2 (response rate 53.1%). The majority of module 1 participants were male (71.2%, 95% CI: 68.9, 73.5), with a median age of 57 (IQR: 46.0, 67.0) years and incomplete paraplegia (41.9%, 95% CI: 39.3, 44.5). Survey non-response was higher in the oldest age group, among females, and those with tetraplegia. CONCLUSIONS: The design of the Survey 2017 was successful in recruiting a substantial proportion of the SCI source population in Switzerland. To counteract survey non-response, survey weights may be applied to subsequent analyses. SPONSORSHIP: none.

The Potential Causes of Paraplegia after Coronary Artery Bypass Grafting: A Literature Review.

Paraplegia is an unpredictable neurologic complication after coronary artery bypass grafting (CABG) surgery. It is rare but fatal, and the mechanism still is unclear. We aimed to make a summary of the possible causes of paraplegia after CABG. Pubmed database was searched from January 1, 1978 to December 31, 2019, and 14 studies were finally included. Paraplegia after CABG is a multifactorial consequence, but spinal cord ischemia is the key pathological factor to postoperative paraplegia.

Poor adherence to influenza vaccination guidelines in spinal cord injury: results from a community-based survey in Switzerland.

STUDY DESIGN: Cross-sectional survey. OBJECTIVES: To evaluate the annual influenza vaccination coverage rate (IVCR) among community-dwelling individuals with spinal cord injury (SCI). SETTING: SCI community in Switzerland. METHODS: Participants were responders to the influenza vaccination question (n = 492) in the 2012 community survey of the Swiss Spinal Cord Injury (SwiSCI) cohort study. IVCR of SwiSCI participants were compared to the normative Swiss population, sampled in the Swiss Health Survey of 2012 using direct standardization, logistic regression standardization, and a genetic matching approach to control for differences in age, sex, and quarterly period of survey response. RESULTS: Individuals with SCI showed higher crude (26%, 95% confidence interval (CI): 22-30%) and age- and sex-standardized (24%, CI: 23-24%) IVCR than observed in the general population (15% CI, 14-15%). The adjustment for age and sex as well as quarterly period of survey response showed that the standardized IVCR of individuals with SCI (17%; CI: 12-23%) approached that of the general population. Low IVCR of about 10% were found among individuals with SCI younger than 45 years. IVCR were similar between men and women and between individuals with incomplete and complete paraplegia and tetraplegia. CONCLUSION: The IVCR in individuals with chronic SCI was not higher than in the general population and much lower than guidelines recommend. The improvement of the IVCR is an important target of health policy in SCI in Switzerland as to reduce the evidenced excess burden in respiratory-disease related morbidity and mortality.

Loss of work-related income impoverishes people with SCI and their families in Bangladesh.

STUDY DESIGN: Cross-sectional study. OBJECTIVES: To determine the degree of impoverishment of people with spinal cord injury (SCI) and their families in Bangladesh caused by loss of work-related income following injury. SETTING: Spinal cord injury centre, Bangladesh. METHODS: A total of 410 wheelchair-dependent people with recent SCI about to be discharged from a hospital in Bangladesh were interviewed to determine the size of their families, their incomes from paid work prior to injury and the incomes of their family members. These data were used to calculate income per family unit and per family member prior to and immediately after injury. RESULTS: Ninety percent of the participants were men, 98% were from rural areas of Bangladesh and 58% were manual labours prior to injury. Median (interquartile range, IQR) family size was 5 (4-6) people. Prior to injury, 74% of participants were the main income earners for their families and 50% provided the only source of income for their families. Participants' median (IQR) monthly income prior to injury was US$106 (US$60-US$180) per person and family members' income was US$30 (US$19-US$48) per person. After injury, the median income (IQR) of each family member dropped to US$0 (US$0-US$18) placing 91% of families below the extreme poverty line of US$37.50 per person per month (equivalent to US$1.25 per day). CONCLUSION: In Bangladesh, SCI have profound financial implications for individuals and their families and causes extreme poverty. This is because those most often injured are young and the main income earners for their families.

Traumatic spinal cord injury in Italy 20 years later: current epidemiological trend and early predictors of rehabilitation outcome.

STUDY DESIGN: Multicenter prospective observational study of people with acute traumatic spinal cord injury (TSCI) admitted to rehabilitation. OBJECTIVES: To update epidemiological characteristics of a TSCI Italian population and verify the impact of patient characteristics at admission on two outcomes: functional gain (SCIM III) and discharge destination. SETTING: Thirty-one SCI centers for comprehensive rehabilitation in 13 Italian regions. METHODS: All consecutive individuals admitted with acute TSCI were enrolled from October 1, 2013 to September 30, 2014; data were recorded on rehabilitation admission and discharge. Functional gain and discharge destination were identified as outcome measures and statistically analyzed with patient characteristics at admission to identify early outcome predictors. RESULTS: Five hundred and ten individuals with TSCI met inclusion criteria; falls represented the most frequent etiology (45%). On admission, AIS A-B-C tetraplegia was reported in 35% of cases; AIS A-B-C paraplegia in 40%; AIS D paraplegia/tetraplegia in 25%. The majority were discharged home (72%). The mean (SD) SCIM gain was 38 ± 26 points. A predictive model was found for discharge setting: individuals with fall-related injuries, severe SCI (AIS A-B-C tetraplegia), tracheal cannula or indwelling catheter on admission, were less likely to be discharged home (OR 95% CI 0.15 [0.06, 0.35]). A model with a lower predictive power was found for SCIM gain, with lower score expected for females, older age, higher severity of SCI, a longer onset of injury admission interval (OAI), and mechanical ventilation on admission. CONCLUSIONS: Prognostic factors in early rehabilitation are still hard to identify, making it difficult to correctly approach customized rehabilitation.

Strict Control of Blood Glucose With an Intravenous Insulin Infusion Decreases the Risk of Post-operative Lower Extremity Weakness After Complex Endovascular Aortic Aneurysm Repair.

OBJECTIVE/BACKGROUND: It has previously been shown that post-operative lower extremity weakness (LEW) is associated with elevated blood and cerebrospinal fluid (CSF) glucose levels after branched endovascular aneurysms repair (BEVAR) of extensive aortic aneurysms. The purpose of this study was to determine whether a post-operative insulin infusion protocol (IIP) to achieve tight blood glucose control decreases the rate of LEW. METHODS: From October 2013, blood and CSF samples were collected pre-operatively, immediately post-operatively, and on post-operative day one in asymptomatic patients undergoing BEVAR. In July 2016, an IIP was initiated to maintain post-operative blood glucose levels <120 mg/dL for 48 h. Data on demographics, operative repair, complications, and outcomes were collected prospectively. RESULTS: Between October 2013 and April 2018, 43 patients underwent BEVAR. Twenty-two (group A) underwent BEVAR before initiation of the IIP. Of these, seven (32%) developed LEW within 48 h of repair. This was temporary in five (23%) and permanent in two (9%) patients. Post-operative blood glucose levels were significantly higher in patients with LEW compared with those without LEW (140 ± 27 mg/dL vs. 117 ± 16 mg/dL; p = .02). Post-operative CSF glucose levels were significantly higher in patients with LEW compared with those without LEW (102 ± 15 mg/dL vs. 77 ± 15 mg/dL; p = .001). The subsequent 21 patients (group B) underwent BEVAR after initiation of the IIP. No patient in group B developed LEW while on the IIP, but one (5%) developed paraplegia on post-operative day four. The rate of early LEW (<48 h post-operatively) was significantly lower after initiation of the IIP (32% in group A vs. 0% in group B; p = .009). There was no difference in demographics, comorbidities, or operative time between the groups. CONCLUSION: An IIP to control blood glucose after BEVAR is associated with a decreased rate of post-operative LEW. Tight control of blood glucose should be considered after any extensive aortic reconstruction to minimise the risk of post-operative LEW.

Incidence and Predictors of Neurological Complications Following Thoracic Endovascular Aneurysm Repair in the Global Registry for Endovascular Aortic Treatment.

OBJECTIVES: The aim of this study was to investigate the incidence and predictors of early and mid term neurological complications following thoracic endovascular repair (TEVAR) in the Global Registry for Endovascular Aortic Treatment (GREAT). METHODS: The GREAT is a prospective observational multicentre registry on Gore aortic endografts that was initiated in 2010. Only isolated thoracic aortic pathologies were included (aortic arch and descending thoracic aneurysms, type B dissections, penetrating ulcers, intramural haematomas, pseudoaneurysms, and transections). Thoraco-abdominal aneurysms and concomitant abdominal aneurysms were excluded. Neurological complications were classified as cerebrovascular accidents (CVA) and spinal cord injuries (SCI). Clinical, procedural, and technical data were evaluated for their association with early (30 day) and mid term CVAs and SCIs. RESULTS: In total, 833 patients were included: 28 with arch aneurysms (3.4%), 329 with descending thoracic aneurysms (39.5%), 273 with type B dissections (32.8%), and 203 (24.4%) with other thoracic pathologies. Altogether, 593 (71.2%) were elective procedures and 240 (28.8%) were urgent. Aortic coverage >20 cm was performed in 42.1% (n = 351); proximal landing zone 0-1-2 was adopted in 267 patients (32.1%) and of these 98 (36.7%) underwent left subclavian artery (LSA) revascularisation. There were 13 early CVAs (1.5%) and the four year freedom from CVA rate was 96.3%. On multivariable analysis, aortic arch aneurysm was the only independent predictor of early CVA (odds ratio 16.7, p = .001). LSA coverage (hazard ratio [HR] 3.31, p = .005) and hypercholesterolaemia (HR 2.96, p = .024) were independent predictors of mid term ischaemic CVAs. There were 15 (1.8%) early SCIs, and the four year freedom from SCI rate was 97.8%. No independent predictors of early SCI were identified, but length of coverage was an independent predictor of SCI at four years (HR 1.24; p = .044). CONCLUSIONS: In this real world registry, the overall rate of neurological complication after TEVAR for isolated thoracic aortic pathologies was low. Aortic arch aneurysms were associated with increased peri-operative CVA risk. Length of coverage was an independent predictor of mid term SCIs, as LSA coverage was associated with late CVAs.

Strengthening Acute Flaccid Paralysis Surveillance Through the Village Polio Volunteers Program in Somalia.

Background: Surveillance for cases of acute flaccid paralysis (AFP) is a key strategy adopted for the eradication of polio. Detection of poliovirus circulation is often predicated on the ability to identify AFP cases and test their stool specimens for poliovirus infection in a timely manner. The Village Polio Volunteers (VPV) program was established in 2013 in a bid to strengthen polio eradication activities in Somalia, including AFP surveillance, given the country's vulnerability to polio outbreaks. Methods: To assess the impact of the VPV program on AFP surveillance, we determined case counts, case-reporting sources, and nonpolio AFP rates in the years before and after program introduction (ie, 2011-2016). We also compared the stool specimen adequacy rates and timeliness of cases reported by VPVs to those reported by other sources. Results: In the years after program introduction, VPVs accounted for a high proportion of AFP cases reported in Somalia. AFP case counts rose from 148 cases in 2012, the year before program introduction, to 279 cases in 2015, when VPVs accounted for 40% of reported cases. Further, from 2012 to 2015, the nonpolio AFP rate improved from 2.8 to 4.8 cases per 100000 persons aged <15 years. Stool specimen adequacy rates have been consistently high, and AFP cases have been detected in a timelier manner since the program was introduced. Conclusions: Given the impact of the VPV program on improving AFP surveillance indicators in Somalia, similar community-based programs could play a crucial role in enhancing surveillance activities in countries with limited healthcare infrastructure.

Genetic characterization of enterovirus A71 isolates from severe neurological cases in Poland.

The aim of this study was to report a minor outbreak of enterovirus A71 (EV-A71) infection in Poland and characterize isolates from cases of severe neurological infection detected in 2013 and 2016. Phylogenetic analysis revealed that Polish strains belonged to the C genogroup: C1, C2, and C4. Severe neurological manifestations as encephalitis or acute flaccid paralysis (AFP), were associated with all detected subgenogroups. The C2 subgenogroup was associated with the outbreak in Gdansk, with serious cases of AFP, myelitis, cerebellitis, encephalitis, but also with mild, sporadic cases of aseptic meningitis, in other Polish cities. Data from the study established relationships of EV-A71 from Poland with previously characterized strains and confirmed the importance of high quality enterovirus surveillance with international reach.

Non-polio Enterovirus detection with acute flaccid paralysis: A systematic review.

Acute flaccid paralysis (AFP), as defined by the World Health Organization (WHO), is characterized by an acute onset of limb weakness. In the post-polio era, other enterovirus (EV) serotypes associated with AFP may become more prominent. This study aims to collate the data on the non-polio enteroviruses (NPEV) associated with AFP. A systematic review of published case reports, case series, and surveillance studies of AFP from 1960 through 2017 was undertaken. Data were collected including the country of the study, number of specimens positive for NPEV and available clinical data. The majority of studies originated from Asia. In surveillance studies, EV 71 (a serotype of Enterovirus A) was the most commonly detected serotype with AFP, followed by Enterovirus B serotype echovirus 11 and then Enterovirus B serotype echovirus 11. In case studies and case reports, EV 71 and EV 68 (a serotype of Enterovirus D), were the most commonly detected NPEV. As poliovirus eradication continues, there is a need to ensure that AFP surveillance will also detect other potentially vaccine preventable viruses.

Epidemiology of Traumatic Spinal Cord Injury in Ireland, 2010-2015.

BACKGROUND: The International Spinal Cord Society and World Health Organisation recommend the collection of epidemiological data on traumatic spinal cord injury (TSCI). A 1-year prospective study is ongoing in Ireland. While the results of this study are awaited, it was concluded from a feasibility exercise that a complete retrospective dataset, 2010-2015, could be obtained and would be useful for service planning. METHODS: All patients with TSCI discharged from the national SCI acute and rehabilitation centres were included. Data was collected on gender, age, aetiology, level of injury, American Spinal Injuries Association impairment scale, length of rehabilitation admission and discharge destination. Population denominators were national census figures 2006 and 2011, rolled forward. RESULTS: The incidence of TSCI remained constant throughout the study period, 11.5-13.3 per million per year. The mean age of injury onset was 48.9 (SD 19.8) years. Males accounted for 71.5%. The most common injury level/AIS was incomplete tetraplegia, accounting for 43.2% of all TSCI. Leading aetiology was falls, accounting for 53.3% of injuries. Patients with incomplete tetraplegia were older than those with all other injuries (p < 0.001). CONCLUSIONS: The epidemiological trends identified are similar to those prevalent elsewhere in the developed world. More incomplete tetraplegia among an older patient population necessitates a review of how acute care and rehabilitation services are delivered.

Paraplegic patients: how to measure balance and what is normal or functional?

PURPOSE: To review the current understanding and data of sagittal balance and alignment considerations in paraplegic patients. METHODS: A PubMed literature search was conducted to identify all relevant articles relating to sagittal alignment and sagittal balance considerations in paraplegic and spinal cord injury patients. RESULTS: While there are numerous studies and publications on sagittal balance in the ambulatory patient with spinal deformity or complex spine disorders, there is paucity of the literature on "normal" sagittal balance in the paraplegic patients. Studies have reported significantly alterations of the sagittal alignment parameters in the non-ambulatory paraplegic patients compared to ambulatory patients. The variability of the alignment changes is related to the differences in the level of the spinal cord injury and their differences in the activations of truncal muscles to allow functional movements in those patients, particularly in optimizing sitting and transferring. Surgical goal in treating paraplegic patients with complex pathologies should not be solely directed to achieve the "normal" radiographic parameters of sagittal alignment in the ambulatory patients. The goal should be to maintain good coronal balance to allow ideal sitting position and to preserve motion segment to optimize functions of paraplegia patients. CONCLUSION: Current available literature data have not defined normal sagittal parameters for paraplegic patients. There are significant differences in postural sagittal parameters and muscle activations in paraplegic and non-spinal cord injury patients that can lead to differences in sagittal alignment and balance. Treatment goal in spine surgery for paraplegic patients should address their global function, sitting balance, and ability to perform self-care rather than the accepted radiographic parameters for adult spinal deformity in ambulatory patients.

Comorbidity and physical activity in people with paraplegia: a descriptive cross-sectional study.

STUDY DESIGN: Descriptive cross-sectional study. SETTING: The study was conducted in the Spinal Cord Injury Unit of the University Vall d'Hebron Hospital and in the Physical Education and Sports Department of the University of Valencia. OBJECTIVES: The aim of this study was to quantify the presence of comorbidities in spinal cord injury (SCI) subjects who did or did not perform regular physical activity (PA) and to identify the relationship between PA and the level of comorbidity. METHODS: The sample consisted of patients with complete motor SCI (T2-T12), who were fitted with an accelerometer attached to the non-dominant wrist for a period of 1 week. The clinical and blood analytic variables were selected by an expert panel. RESULTS: In the exploratory analysis, we have found differences in the total number of pathologies between active and inactive patients, with fewer total pathologies in the active patient group. An association was found between the PA level and diabetes mellitus (; P=0.047; φ=0.25). We also observed an association between the cardioprotector level of high-density lipoprotein (HDL)-cholesterol and PA level (; P=0.057; Φ0.24). CONCLUSIONS: Our results suggest that patients considered active showed lower total comorbidity than inactive patients and higher protection levels against developing cardiovascular comorbidity.

Prevalence of upper extremity pain in a population of people with paraplegia.

STUDY DESIGN: Cross-sectional study. OBJECTIVES: To determine the prevalence, patterns, and predictors of musculoskeletal pain in the upper extremity joints among wheelchair-dependent individuals with post-traumatic paraplegia. Secondarily, to document most common reported causes of upper extremity pain. SETTING: Centre for Orthopaedics, Trauma Surgery and Spinal Cord Injury, Germany. METHODS: The study was done by means of a structured questionnaire, which was mailed to the individuals who had been treated between 1990 and 2007 for newly sustained or pre-existing, accident-related paraplegia (n = 670). The questionnaire was designed mainly to obtain the information regarding shoulder, elbow, and wrist pain. Additional data included participant demographics, mechanism, level and completeness of injury as well as wheelchair dependence and time since injury. The Frankel classification system was used to define the completeness of injury. RESULTS: Four hundred and fifty-one (67%) questionnaires were included. Pain was reported by approximately 81% of the participants. Of this sample, 61% had shoulder pain, 33% had elbow pain, and 43% had wrist pain, 19% had shoulder, elbow, and wrist pain, 27% had shoulder and elbow pain, 34% had shoulder and wrist pain, 21% had elbow and wrist pain. The main diagnoses were rotator cuff tears for individuals with shoulder pain, epicondylitis for those with elbow pain, and carpal tunnel syndrome for those with wrist pain. The development of shoulder/elbow and wrist pain correlated with age and time since injury. CONCLUSIONS: Age and the length of time since injury correlated with a higher rate of shoulder, elbow, and wrist pain. The completeness of injury, neurological level, and gender were correlated with shoulder, elbow, and wrist pain, respectively.

Evolutionary phylogeography and transmission pattern of echovirus 14: an exploration of spatiotemporal dynamics based on the 26-year acute flaccid paralysis surveillance in Shandong, China.

BACKGROUND: Echovirus 14 (E-14) causes various clinical recognized syndromes, mostly with gastrointestinal syndrome and paralysis. The current study summarized the Shandong E-14 strains isolated from a 26-year acute flaccid paralysis (AFP) surveillance, and elucidated the characterization of phylogenetic and phylogeographic relationships of E-14 worldwide. RESULTS: As a predominant serotype circulating in AFP surveillance, phylogenetic analysis showed that E-14 exhibited both time and geographic subdivision worldwide. In order to know the evolutionary history and spatial temporal dynamics of E-14, evolutionary phylogeography was reconstructed using BEAST and SPREAD software based on the VP1 sequences. The time of the most recent common ancestor of E-14 was estimated around 85 years and evolved with 9.17 × 10-3 substitutions/site/year. Phylogeographic analysis suggested that two regional transmissions of E-14 were mainly detected, with one located between Europe and Africa countries and the other was in the Asia-Pacific region. CONCLUSIONS: Our study investigates the molecular evolution and phylogeographic of E-14, and brings new insight to the dispersal of E-14 worldwide. Regional transmission was mainly detected and Australia may be responsible for the spread of E-14 in recent years.

Outbreaks of Neuroinvasive Astrovirus Associated with Encephalomyelitis, Weakness, and Paralysis among Weaned Pigs, Hungary.

A large, highly prolific swine farm in Hungary had a 2-year history of neurologic disease among newly weaned (25- to 35-day-old) pigs, with clinical signs of posterior paraplegia and a high mortality rate. Affected pigs that were necropsied had encephalomyelitis and neural necrosis. Porcine astrovirus type 3 was identified by reverse transcription PCR and in situ hybridization in brain and spinal cord samples in 6 animals from this farm. Among tissues tested by quantitative RT-PCR, the highest viral loads were detected in brain stem and spinal cord. Similar porcine astrovirus type 3 was also detected in archived brain and spinal cord samples from another 2 geographically distant farms. Viral RNA was predominantly restricted to neurons, particularly in the brain stem, cerebellum (Purkinje cells), and cervical spinal cord. Astrovirus was generally undetectable in feces but present in respiratory samples, indicating a possible respiratory infection. Astrovirus could cause common, neuroinvasive epidemic disease.

Social support and its association with depression, gender and socioeconomic indicators in individuals with spinal cord injury in Iran.

STUDY DESIGN: Descriptive cross-sectional study. OBJECTIVES: To investigate the relationship between perceived social support and depression and to evaluate the role of family, friends and other caregivers in the perception of social support in Iranian individuals with spinal cord injury (SCI). SETTING: Brain and Spinal Cord Injury Research Center, Tehran University of Medical Sciences, Tehran, Iran. METHODS: Social support was evaluated using the Multidimensional Scale of Perceived Social Support questionnaire, which gauges perceptions of support from family, friends and 'important persons'. The presence and severity of depression were assessed with the Beck Depression Inventory (BDI-II-PERSIAN)-a 21-item multiple-choice questionnaire. RESULTS: A total of 140 individuals with SCI were enrolled in the study. The average age of the participants was 29.4±7.9 years; the mean duration of injury was 46.3±46.5 months and most patients were male (72%). Social support and all subscales of social support were numerically greater in males; however, this difference was not statistically significant. The subcategory of friends' support in men was 17.9±7.9 compared to 14.6±8.0 in women (P=0.04). The self-reported social support score (r=-0.387, P<0.001) and subscales of social support, including family (r=-0.174, P=0.045), friends (r=-0.356, P<0.001) and important persons (r=-0.373, P<0.001), were all negatively correlated with depression. CONCLUSION: Higher self-reported perception of social support appears to be associated with lower levels of depression in individuals with SCI. SCI care providers should consider the relationship between social support and depression in their continuing care.