Changes in thigh muscle volume over 6 months were assessed using magnetic resonance imaging in 11 subjects aged 6 to 47 years with spinal muscular atrophy (4 type 2 and 7 type 3; 4 ambulatory and 3 ...nonambulatory). Muscle volume with normal and abnormal signal was measured using blinded, semiautomated analysis of reconstructed data. Volumes at baseline and 6 months were correlated with clinical function at each epoch. There was minimal increase in normal (0.3 ± 1.4 mL/cm) and total (0.1 ± 1.3 mL/cm) muscle. Muscle volume correlated closely with clinical function. Minimal interval change in muscle volume is consistent with the established clinical history of minimal disease progression over intervals shorter than 1 year. Relative constancy of muscle volume estimation and correlation with established functional measures suggest a role for segmental magnetic resonance imaging as a biomarker of treatment effect in future therapeutic trials.
The aims of this study were to externally validate the OroGrams (oropharyngeal cancer survival calculator) nomogram in a Scottish cohort with high endemic smoking rates, and to compare survival rates ...with the original validation cohort. A retrospective cohort study in Greater Glasgow and Clyde ENT and OMFS departments was performed to investigate survival outcomes of patients with oropharyngeal squamous cell carcinoma (OPSCC) from January 2012 - December 2017. The main outcome measures were progression-free (PFS) and overall survival (OS), and Kaplan Meier curves. The predictive accuracy of OroGrams was investigated for survival probabilities at one, three, and five years. Smoking and HPV-negative cancer rates were significantly higher in Scottish patients than in the UK consortium cohort. A greater proportion of Scottish patients had advanced UICC8 stages. PFS in patients with HPV-negative cancer appeared better in the Scottish cohort than in the original cohort. Calculated mean standardised Brier scores for PFS and OS were below 0.2 at all three follow-up points, suggesting good overall prognostic accuracy, but there was wide variation between predictive accuracy in individual patients. OroGrams shows prognostic accuracy at one-year follow up in Scotland. The accuracy decreases with longer follow-up periods.
ABSTRACT
Introduction: The purpose of this study was to measure and analyze motor unit number estimation (MUNE) values longitudinally in spinal muscular atrophy (SMA). Methods: Sixty‐two children ...with SMA types 2 and 3 were observed prospectively for up to 42 months. Longitudinal electrophysiological data were collected, including compound motor action potential (CMAP), single motor unit action potential (SMUP), and MUNE. Results: Significant motor neuron loss and compensatory collateral reinnervation were noted at baseline. Over time, there was a significant mean increase in MUNE (4.92 units/year, P = 0.009), a mean decrease in SMUP amplitude (−6.32 μV/year, P = 0.10), and stable CMAP amplitude. Conclusions: The unexpected longitudinal results differ from findings in amyotrophic lateral sclerosis studies, perhaps indicating that compensatory processes in SMA involve new motor unit development. A better understanding of the mechanisms of motor unit decline and compensation in SMA is important for assessing novel therapeutic strategies and for providing key insights into disease pathophysiology. Muscle Nerve 49: 636–644, 2014
Obstetric venous thromboembolism is a leading cause of severe maternal morbidity and mortality. Maternal death from thromboembolism is amenable to prevention, and thromboprophylaxis is the most ...readily implementable means of systematically reducing the maternal death rate. Observational data support the benefit of risk-factor-based prophylaxis in reducing obstetric thromboembolism. This bundle, developed by a multidisciplinary working group and published by the National Partnership for Maternal Safety under the guidance of the Council on Patient Safety in Women's Health Care, supports routine thromboembolism risk assessment for obstetric patients, with appropriate use of pharmacologic and mechanical thromboprophylaxis. Safety bundles outline critical clinical practices that should be implemented in every maternity unit. The safety bundle is organized into four domains: Readiness, Recognition, Response, and Reporting and Systems Learning. Although the bundle components may be adapted to meet the resources available in individual facilities, standardization within an institution is strongly encouraged.
Background
Epistaxis affects most people over their lifetime. It is the commonest ear, nose and throat emergency. Hospital admission and socio‐economic deprivation have been associated with mental ...health disorders, respiratory illness and with emergency hospital admissions. Low socio‐economic status has never previously been associated with epistaxis, a common reason for admission to ear, nose and throat departments throughout the UK.
Methods
Demographics from Information Services Division Scotland were analysed over a period of 20 years. This focused on gender, number of admissions, number of bed days, socio‐economic deprivation (Scottish Index of Multiple Deprivation) and mortality within 1 year.
Results
Data from 54 501 patients were assessed. Admission numbers and length of stay have significantly decreased (P < 0.0001). Males are more frequently affected (P = 0.001). Admission numbers were higher for patients in more deprived areas (P < 0.001). Mean duration of stay has decreased by 1 bed day. Surgical intervention of epistaxis has increased significantly (P < 0.001). There is an associated 1‐year mortality rate of 9.8% following epistaxis.
Conclusion
There has been a significant decrease in hospital admissions and length of hospital stay in patients admitted with epistaxis over the past 20 years. There is a significant association with deprivation and epistaxis admission.
Purpose
Reasons for delayed presentation in cancer are reported as patient or professional delays. Studies have examined patient demographic factors associated with presentation delay, but it is ...currently unknown why patients feel they delayed presenting.
Methods
Questionnaire study of consecutive patients attending an urgent suspicion of cancer clinic at a tertiary referral centre in Glasgow over a 3-month period.
Results
395 patients were included. 53 (13%) patients waited 0–7 days, 164 (41%) patients 1–4 weeks, 139 (35%) 1–12 months and 31 (8%) waited longer than 12 months, before presenting. 8 (3%) did not state length of time before presentation. 123 (31%) patients were not worried about their symptoms. 5 of the 13(38%) patients diagnosed with head and neck cancer, waited up to 12 months. 5 (38%) cancer patients delayed presentation because they were not worried about symptoms.
Conclusion
Patients with head and neck cancer are not worried about their symptoms and delay their presentation, possibly contributing towards later stage diagnosis.
Background
Current UK referral criteria stipulate that hoarseness should be persistent to merit 2 week wait (2WW) or urgent suspicion of cancer (USOC) referral. This study delineates patterns of ...hoarseness presentation with a view to assisting referral pathways, and whereby reassurance could be provided.
Methods
A pre‐existing database of patients referred with hoarseness under the urgent suspicion of cancer (USOC) category was analysed. Univariate and multivariate analyses were performed on a variety of demographic and comorbid features to produce odds ratios (OR) of features either related or not related to laryngeal cancer.
Results
Of 698 consecutive hoarseness referrals were studied. In these referrals there were 506(73%) with persistent hoarseness and 192(27%) with intermittent hoarseness. The most significant patient variables related to laryngeal cancer were persistent hoarseness (OR 4.97), recreational drug use (OR 4.94), male gender (OR 4.01) and weight loss (OR 3.75). Significant patient variables present not related to laryngeal cancer diagnosis were intermittent hoarseness (OR 0.2), the presence of cough (OR 0.2), globus sensation (OR 0.25) and recent viral infection (OR 0.29).
Conclusion
The strongest association with cancer is seen in patients that are persistently hoarse. Patients with fluctuating hoarseness do not need an “urgent suspicion of cancer” referral. Additional demographic referral information could help to streamline the referral of these patients, and reassure others.
Adverse swallowing outcomes following head and neck squamous cell carcinoma treatment in the context of late-onset post-radiotherapy changes can occur more than five years post-treatment.
A ...retrospective study was conducted utilising patient records from March 2013 to April 2015. Patients were categorised into 'swallow dysfunction' and 'normal swallow' groups. Quality of life was investigated using the MD Anderson Dysphagia Inventory and EuroQol questionnaires.
Swallow dysfunction was seen in 77 (51 per cent) of 152 patients. Twenty-eight patients (36 per cent) in the swallow dysfunction group reported symptoms in year five. Swallow dysfunction was associated with stage IV head and neck squamous cell carcinoma (
< 0.001) and radiotherapy (
< 0.001). MD Anderson Dysphagia Inventory global scores showed significant differences between swallow dysfunction and normal swallow groups (
= 0.01), and radiotherapy and surgery groups (
= 0.03), but there were no significant differences between these groups in terms of MD Anderson Dysphagia Inventory composite or EuroQol five-dimensions instrument scores.
One-third of head and neck squamous cell carcinoma survivors with swallow dysfunction still show symptoms at more than five years post-surgery, a point at which they are typically discharged.
Authorship of academic publications is central to scientists' careers, but decisions about how to include and order authors on publications are often fraught with difficult ethical issues. To better ...understand scholars' experiences with authorship, we developed a novel concept, authorship climate, which assesses perceptions of the procedural, informational, and distributive justice associated with authorship decisions. We conducted a representative survey of more than 3,000 doctoral students, postdoctoral researchers, and assistant professors from a stratified random sample of U.S. biology, economics, physics, and psychology departments. We found that individuals who tend to have more power on science teams perceived authorship climate to be more positive than those who tend to have less power. Alphabetical approaches for assigning authorship were associated with higher perceptions of procedural justice and informational justice but lower perceptions of distributive justice. Individuals with more marginalized identities also tended to perceive authorship climate more negatively than those with no marginalized identities. These results illustrate how the concept of authorship climate can facilitate enhanced understanding of early-career scholars' authorship experiences, and they highlight potential steps that can be taken to promote more positive authorship experiences for scholars of all identities.
Growth failure is nearly universal in spinal muscular atrophy type 1 and common in type 2, although acuity is often underappreciated at initial diagnosis. We reviewed 44 consecutive spinal muscular ...atrophy patients (28 type 1, 16 type 2) under 3 years at initial presentation. Growth failure was conventionally defined: weight below the fifth percentile or dropping 2 major percentiles over 6 months. Growth failure differed among subjects stratified by age at disease onset using the Kaplan-Meier method (P = 0.011). Median time to growth failure among subjects with onset between 0 to 3 months of age was 5 months; Only 1 of 22 avoided failure by 22 months of age. Median time to failure with disease onset between 4 to 6 months was 15 months. Most late onset (> 6 months) subjects avoided growth failure. Early clinical symptoms predict feeding dysfunction and growth failure. Immediate, proactive nutritional intervention is indicated for patients with early symptom onset.
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