Publications by authors named "Lean N"

Introduction: (STEPS) is a digital application (app) designed to help parents manage behaviour of their children who are referred to mental health services and are waiting for an assessment or treatment. STEPS is currently being evaluated in the Online Parent Training for the Initial Management of Attention-Deficit/Hyperactivity Disorder randomised controlled trial. Alongside the examination of STEPS' clinical and cost-effectiveness, we are conducting a process evaluation to better understand the contextual factors that may influence study outcomes.

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Article Synopsis
  • The study evaluated a prototype dynamic laryngoplasty system (DLPS) on 7 healthy Standardbred horses to assess its feasibility for treating laryngeal issues.
  • A standing surgical procedure induced complete laryngeal hemiplegia, and the DLPS showed effective delivery with no complications during the trial.
  • Results indicated that while the DLPS could improve airway function 7 days post-surgery, long-term effects (1 month) were limited due to potential fibrosis around the implant.
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Objective: To describe left recurrent laryngeal neurectomy (LRLn) performed under standing sedation and evaluate the effect of LRLn on upper respiratory tract function using a high-speed treadmill test (HST). We hypothesized that (1) unilateral LRLn could be performed in standing horses, resulting in ipsilateral arytenoid cartilage collapse (ACC); and (2) HST after LRLn would be associated with alterations in upper respiratory function consistent with dynamic ACC.

Animals: 6 Thoroughbred horses.

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Background: The Structured E-Parenting Support (STEPS) app provides support for parents of children with elevated hyperactivity, impulsivity, inattention, and conduct problems who are awaiting clinical assessment. STEPS will be evaluated in a randomized controlled trial (RCT) within the Online Parent Training for the Initial Management of ADHD Referrals (OPTIMA) research program in the United Kingdom. Phase 1 of the OPTIMA tested the feasibility of participants' recruitment and the app's usability.

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  • The study examines differences between domestic and feral horses in terms of the left recurrent laryngeal nerve (Lrln) and left cricoarytenoideus dorsalis (LCAD) muscle, focusing on possible implications for recurrent laryngeal neuropathy (RLN).
  • Sixteen horses (8 domestic and 8 feral) were analyzed using histological and immunohistochemical methods after being harvested at an abattoir, revealing some differences in muscle fiber types and regeneration patterns.
  • Results indicated that domestic horses showed more signs of nerve regeneration consistent with RLN and had a higher percentage of type IIX muscle fibers compared to feral horses, prompting further investigation to determine the significance of these findings.
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Background: Children referred for attention-deficit/hyperactivity disorder (ADHD) often present with a broader pattern of conduct problems including oppositionality and defiance. This combination can be extremely stressful to parents, lower parents' self-esteem and negatively impact family life. The National Institute for Health and Care Excellence (NICE) recommends that families receive support as soon as possible after their referral.

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Objectives: To investigate the feasibility and describe the clinical experience of performing laryngeal tie-forward (LTF) in standing horses unaffected (experimental) and affected (clinical) by intermittent dorsal displacement of the soft palate (iDDSP).

Study Design: Experimental study and case series.

Animals: Five normal experimental controls and five client owned horses affected by iDDSP.

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Background: Surgical stabilisation of the distal phalanx (DP) is a potential therapeutic strategy for severe acute laminitis.

Objective: To evaluate the effects of locking compression plate (LCP) fixation of the DP to the dorsal hoof wall.

Study Design: Ex vivo and in vivo experiments.

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Injectable hydrogels can support the body's innate healing capability by providing a temporary matrix for host cell ingrowth and neovascularization. The clinical adoption of current injectable systems remains low due to their cumbersome preparation requirements, device malfunction, product dislodgment during administration, and uncontrolled biological responses at the treatment site. To address these challenges, a fully synthetic and ready-to-use injectable biomaterial is engineered that forms an adhesive hydrogel that remains at the administration site regardless of defect anatomy.

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This case series presents a 20-year-old Quarter horse gelding and a 10-year-old Thoroughbred gelding with a histologic diagnosis of aggressive submural neoplasia, including an anaplastic sarcoma and a squamous cell carcinoma respectively. The current case series describes these neoplasias with radiography, computed tomography, magnetic resonance imaging and histopathology with immunohistochemistry. The purpose of this case series is to identify the clinical pattern of chronic reoccurring lameness in these cases and highlight the appearance of expansile osteolytic pathology of the distal phalanx with adjacent hoof wall abnormalities.

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Article Synopsis
  • The study evaluated how vocal cordectomy affects airflow in horse larynges depending on the degree of arytenoid abduction using a lab model.
  • The experiment involved testing 20 equine larynges under three conditions: intact, left vocal cordectomy (LVC), and bilateral vocal cordectomy (BVC), measuring translaryngeal pressure and airflow.
  • Results showed that LVC reduced translaryngeal impedance (TLI) in grade B larynges but had no effect in grade A larynges, indicating that the effectiveness of vocal cordectomy may depend on the arytenoid position, which is crucial for surgeons to consider.
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Background: In the UK, children with high levels of hyperactivity, impulsivity and inattention referred to clinical services with possible attention-deficit/hyperactivity disorder (ADHD) often wait a long time for specialist diagnostic assessment. Parent training (PT) has the potential to support parents during this difficult period, especially regarding the management of challenging and disruptive behaviours that often accompany ADHD. However, traditional face-to-face PT is costly and difficult to organise in a timely way.

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Background: Oncology nurses are in a key position to screen patients for geriatric syndromes that can disproportionately affect older adults with cancer. Early recognition can promote informed decision-making, initiation of interventions, and tolerance of treatment.

Objectives: This study aimed to implement a nursing-sensitive screening process to identify types and frequency of geriatric syndromes in hospitalized older adult patients with cancer.

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Background: Mycotic rhinitis is a rare disease in horses, with few cases reported worldwide and none reported in Australia. Fungal infection of the upper respiratory tract can occur in all species, but its prevalence in horses is considerably lower than in canines or humans. The disease is linked to a variety of pathogens and the clinical signs are associated with subsequent upper respiratory tract damage.

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Background: Conventional radiography is currently the most common imaging modality used by veterinarians investigating foals with suspected osteomyelitis. Emerging evidence in adult horses and humans suggests computed tomography (CT) is a superior modality for evaluation of osseous changes in general. This study aimed to evaluate the potential benefits of CT versus conventional radiography in cases of osteomyelitis in foals.

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The liver fluke, Fasciola hepatica, is common in many parts of Great Britain. To detect liver fluke infection and to assess whether fasciolicide treatment has been successful, the faecal egg count (FEC) and faecal egg count reduction test (FECRT) are widely used. Rumen fluke is also increasingly reported from Great Britain, but its species identity is yet to be determined.

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Noxious stimuli that are applied to different somatic sites interact; often one stimulus diminishes the sensation elicited from another site. By contrast, inhibitory interactions between visceral stimuli are not well documented. We investigated the interaction between the effects of noxious distension of the colorectum and noxious stimuli applied to the jejunum, in the rat.

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Distension of the intestine is commonly used to elicit reflex responses at other sites in the gastrointestinal tract, and also to evaluate pain of intestinal origin. The sensory neurones, that initiate the reflexes or pain responses, react to the forces generated in the wall of the intestine. Thus, the responses of the intestine at the site of distension, particularly changes in contractile activity, influence the signals from the gut.

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