Impact of alpha-tocopherol deficiency and supplementation on sacrocaudalis and gluteal muscle fiber histopathology and morphology in horses.

BackgroundA subset of horses deficient in alpha-tocopherol (α-TP) develop muscle atrophy and vitamin E-responsive myopathy (VEM) characterized by mitochondrial alterations in the sacrocaudalis dorsalis medialis muscle (SC).ObjectivesTo quantify muscle histopathologic abnormalities in subclinical α-TP deficient horses before and after α-TP supplementation and compare with retrospective (r)VEM cases.AnimalsProspective study; 16 healthy α-TP-deficient Quarter Horses. Retrospective study; 10 retrospective vitamin E-responsive myopathy (rVEM) cases .MethodsBlood, SC, and gluteus medius (GM) biopsy specimens were obtained before (day 0) and 56 days after 5000 IU/450 kg horse/day PO water dispersible liquid α-TP (n = 8) or control (n = 8). Muscle fiber morphology and mitochondrial alterations were compared in samples from days 0 and 56 and in rVEM cases.ResultsMitochondrial alterations more common than our reference range (<2.5% affected fibers) were present in 3/8 control and 4/8 treatment horses on day 0 in SC but not in GM (mean, 2.2; range, 0%-10% of fibers). Supplementation with α-TP for 56 days did not change the percentage of fibers with mitochondrial alterations or anguloid atrophy, or fiber size in GM or SC. Clinical rVEM horses had significantly more mitochondrial alterations (rVEM SC, 13% ± 7%; GM, 3% ± 2%) and anguloid atrophy compared to subclinical day 0 horses.Conclusions and clinical importanceClinically normal α-TP-deficient horses can have mitochondrial alterations in the SC that are less severe than in atrophied VEM cases and do not resolve after 56 days of α-TP supplementation. Preventing α-TP deficiency may be of long-term importance for mitochondrial viability

Enablers and Barriers to Implementing ICU Follow-Up Clinics and Peer Support Groups Following Critical Illness: The Thrive Collaboratives

OBJECTIVES: Data are lacking regarding implementation of novel strategies such as follow-up clinics and peer support groups, to reduce the burden of postintensive care syndrome. We sought to discover enablers that helped hospital-based clinicians establish post-ICU clinics and peer support programs, and identify barriers that challenged them. DESIGN: Qualitative inquiry. The Consolidated Framework for Implementation Research was used to organize and analyze data. SETTING: Two learning collaboratives (ICU follow-up clinics and peer support groups), representing 21 sites, across three continents. SUBJECTS: Clinicians from 21 sites. MEASUREMENT AND MAIN RESULTS: Ten enablers and nine barriers to implementation of "ICU follow-up clinics" were described. A key enabler to generate support for clinics was providing insight into the human experience of survivorship, to obtain interest from hospital administrators. Significant barriers included patient and family lack of access to clinics and clinic funding. Nine enablers and five barriers to the implementation of "peer support groups" were identified. Key enablers included developing infrastructure to support successful operationalization of this complex intervention, flexibility about when peer support should be offered, belonging to the international learning collaborative. Significant barriers related to limited attendance by patients and families due to challenges in creating awareness, and uncertainty about who might be appropriate to attend and target in advertising. CONCLUSIONS: Several enablers and barriers to implementing ICU follow-up clinics and peer support groups should be taken into account and leveraged to improve ICU recovery. Among the most important enablers are motivated clinician leaders who persist to find a path forward despite obstacles

Exploration of therapists’ views of practice within critical care

Introduction: Therapists are increasing recognised as core members of the critical care multiprofessional team. Each therapy profession provides specialist assessments and interventions, but also work collaboratively across the rehabilitation pathway. Despite inclusion in several national guidance documents, there remains a lack of evidence regarding the perceived role of therapists working within critical care, the unique contributions of each profession and opinion on the day-to-day tasks and responsibilities of each therapy profession. // Method: A descriptive qualitative methodology was used involving seven focus groups. Purposeful sampling was used to recruit therapists via professional specialist interest groups. All focus groups were uniprofessional and discussions based on a predesigned framework. Data were analysed thematically. // Results: Participants (n=65) from across the UK were recruited to seven focus groups with an average of 18.3 years postgraduate clinical experience of which 11.6 years was within critical care. Three core themes were generated from 875 codes and 237 potential subthemes. The final themes were (1) professional characteristics; (2) multidisciplinary team and (3) staffing. An additional theme of ‘COVID-19 pandemic’ was also identified. Findings were similar across all profession groups particularly regarding the need for holistic, patient-centred care. Expected variation was observed for professional characteristics especially regarding specific assessments and interventions. // Discussion: Therapy services are an essential component to the delivery of critical care especially regarding recovery and rehabilitation. Through three core themes, this qualitative study has provided new evidence of the perceptions and opinions of the role that therapists undertake within critical care

Protected therapy services for critical care: A subanalysis of the UK-wide workforce survey

Background The existing United Kingdom (UK) allied health professional (AHP) workforce in critical care does not meet national standards, with widespread variation in the source of funding, service availability, and regularity of input. Objectives The aim of this subanalysis was to determine the impact of protected services on the involvement of AHPs on direct and nondirect aspects of patient care. Methods This is a subanalysis of the previously published AHPs in critical care UK-wide workforce survey, an observational study using online surveys distributed to 245 critical care units across the UK. Results/Findings Services with protected funding provided more daily input within critical care. This was most apparent for occupational therapy where daily input varied from 82.1% of units with protected services compared to just 10.3% in those without (p < 0.001). For all professions, most notably occupational therapy and speech and language therapy, protected services increased the regularity in which specific interventions were completed and had impact on involvement in nonclinical aspects of care including involved in multidisciplinary team meetings, clinical governance, and research. Conclusions The absence of protected AHP services reduces compliance with national standards for therapy workforce. Based on these findings, UK and international critical care guidelines should promote protected AHP services for critical car

The effect of agility exercise on eicosanoid excretion, oxidant status, and plasma lactate in dogs

urinary eicosanoids, urinary 15F[subscript2t]-isoprostane (lipid peroxidation marker) and hematological/biochemical changes in plasma. Fifteen adult dogs had blood and urine samples obtained prior to, immediately and 4-hours following an agility exercise. Results: Hematocrit, red blood cells (RBC), albumin, and hemoglobin increased following exercise, with greatest increases correlating to increased skill group (novice, intermediate, masters); at 4-hours post-exercise, hematocrit, RBC, and hemoglobin were decreased. Phosphorus increased following exercise with the greatest increase in novice and intermediates. Plasma lactate increased 3.6-fold in masters, 3.2-fold in intermediates, and 1.2-fold in novice dogs. Urine thromboxane B-2 (TXB2) more than tripled 4-hours post-exercise while 6-keto prostaglandin F[subscript 1 alpha] (PGF1 alpha, prostacyclin metabolite), prostaglandin E[subscript 2] metabolites (13,14-dihydro-15-keto-prostaglandin A[subscript 2] and 13, 14-dihydro-15-keto-prostaglandin E[subscript 2], and 13,14-dihydro-15-keto prostaglandin F[subscript 2 alpha] were unaffected as determined by a competitive enzyme immunoassay and standardized by division with urine creatinine. Urine 15F[subscript 2t]-isoprostane increased insignificantly. Conclusions: Alterations in the plasma post-exercise were likely due to hemoconcentration from insensible water loss, splenic contraction and sympathetic stimulation while 4-hours later autohemodilution reduced RBC parameters. Elevations in plasma lactate and urinary TXB2 correlated with advanced skill level/speed of the dogs.Keywords: Oxidant stress, Agility exercise, Urinary eicosanoids, Thromboxane B[subscript 2], Dog, Plasma lactate, Urinary isoprostan

Development of a patient centred, structured, individually tailored, multi-component intervention to promote rehabilitation and recovery after critical illness: content, theory, and construction. [version 2; peer review: 1 approved, 2 approved with reservations]

Background/aims This paper describes the development (content, theory, and construction) of a patient-centered, structured, individually tailored, multicomponent intervention (the iRehab intervention) to promote rehabilitation and recovery after critical illness. Methods The intervention was informed by the MRC framework for complex interventions and underpinned by existing literature and psychological theories. Key stakeholders included patients who had been in intensive care and multidisciplinary staff with experience in providing healthcare and undertaking research. Results The final intervention includes four core components: 1. weekly discussion and guidance regarding symptom management; 2. targeted exercise and physical activity; 3. support for psychological well-being; 4. peer support and information provision. These are packaged as a program to support rehabilitation and recovery after ICU discharge. Programme duration: Six weeks. Format: Weekly one-to-one remote needs assessment to identify individual participant symptoms and provide management plans, exercises, and strategies to best support recovery. Participants are encouraged to attend weekly group-based remote exercise sessions and group-based remote support sessions (iRehab Café). Mode of delivery: Remote delivery facilitated by online platforms such as Microsoft Teams or Zoom supported with video platform BEAM©, and delivery can also be supported by telephone. The preferred mode of remote delivery is agreed with the participant, and potential barriers to implementation are considered. Manuals are posted to all participants to support intervention delivery. Discussion/conclusion This paper reports the content, theory and construction of the iRehab intervention. The iRehab intervention is currently being tested in a multicenter RCT (iRehab ISRCTN11266403), and the details reported in this paper will help with understanding of the intervention, interpretation of the findings, and replication of the intervention. Detailed intervention manuals will be available upon the completion of the trial