Abstract■ Aphasic patients with multimodal semantic impairment following pFC or temporo-parietal (TP) cortex damage (semantic aphasia [SA]) have deficits characterized by poor control of semantic activation/retrieval, as opposed to loss of semantic knowledge per se. In line with this, SA patients show "refractory effects"; that is, declining accuracy in cyclical word-picture matching tasks when semantically related sets are presented rapidly and repeatedly. This is argued to follow a build-up of competition between targets and distractors. However, the link between poor semantic control and refractory effects is still controversial for two reasons.(1) Some theories propose that refractory effects are specific to verbal or auditory tasks, yet SA patients show poor control over semantic processing in both word and picture semantic tasks. (2) SA can result from lesions to either the left pFC or TP cortex, yet previous work suggests that refractory effects are specifically linked to the left inferior frontal cortex. For the first time, verbal, visual, and nonverbal auditory refractory effects were explored in nine SA patients who had pFC (pFC+) or TP cortex (TP-only) lesions. In all modalities, patient accuracy declined significantly over repetitions. This refractory effect at the group level was driven by pFC+ patients and was not shown by individuals with TP-only lesions. These findings support the theory that SA patients have reduced control over multimodal semantic retrieval and, additionally, suggest there may be functional specialization within the posterior versus pFC elements of the semantic control network. ■
Ninety-six percent of the population reside within a 45-min drive of the nearest intermediate critical care facility, and 94% of the population live within a 45-min ambulance drive time to the nearest intensive care unit. By helicopter, these figures were 95% and 91%, respectively. Some health boards had no access to definitive critical care services within 45 min via helicopter or road. Very remote small towns and very remote rural areas had poorer access than less remote and rural regions.
Background Documentation of pregnancy status (PS) is an integral component of the assessment of women of reproductive age when admitted to hospital. Our aim was to determine how accurately PS was documented in a multicentre audit of female admissions to general surgery. Methods A prospective multicentre audit of elective and emergency admissions was performed in 18 Scottish centres between 08:00 on 11 May 2015 and 07:59 on 25 May 2015. The lower age limit was the minimum age for admission to the adult surgical ward and the upper age limit was 55 years. Results There were 2743 admissions, with 612 (22.3%) women of reproductive age. After 82 exclusions, the final total was 530: 169 (31.9%) elective and 361 (68.1%) emergency. Documentation of PS was achieved in 274 (51.7%) cases: 52 (30.8%) elective and 222 (61.5%) emergency. In 318 (88.1%) of the emergency admissions, the patient had abdominal pain. Of these, 211 (65.1%) had a documented PS. The possibility of pregnancy was established in 237 (44.7%) cases. Discussion Establishing the possibility of pregnancy before surgery is poor, particularly in the elective setting. Objective documentation of PS in the emergency setting in those with abdominal pain is also poor. Our study highlights an important safety issue in the management of female patients. We advocate electronic storage of pregnancy test results and new guidelines to cover both elective and emergency surgery. PS should form part of the pre-theatre safety brief and checklist.
To support leaders and those involved in providing medical care on expeditions in wilderness environments, the Faculty of Pre-Hospital Care (FPHC) of The Royal College of Surgeons of Edinburgh convened an expert panel of leading healthcare professionals and expedition providers. The aims of this panel were to: (1) provide guidance to ensure the best possible medical care for patients within the geographical, logistical and human factor constraints of an expedition environment. (2) Give aspiring and established expedition medics a ‘benchmark’ of skills they should meet. (3) Facilitate expedition organisers in selecting the most appropriate medical cover and provider for their planned activity. A system of medical planning is suggested to enable expedition leaders to identify the potential medical risks and their mitigation. It was recognised that the scope of practice for wilderness medicine covers elements of primary healthcare, pre-hospital emergency medicine and preventative medicine. Some unique competencies were also identified. Further to this, the panel recommends the use of a matrix and advisory expedition medic competencies relating to the remoteness and medical threat of the expedition. This advice is aimed at all levels of expedition medic, leader and organiser who may be responsible for delivering or managing the delivery of remote medical care for participants. The expedition medic should be someone equipped with the appropriate medical competencies, scope of practice and capabilities in the expedition environment and need not necessarily be a qualified doctor. In addition to providing guidance regarding the clinical competencies required of the expedition medic, the document provides generic guidance and signposting to the more pertinent aspects of the role of expedition medic.Electronic supplementary materialThe online version of this article (doi:10.1186/s13728-015-0041-x) contains supplementary material, which is available to authorized users.
Epidemiological study, level IV; therapeutic study, level IV.
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