Twenty-four hour Holter monitoring in finishing cattle housed outdoors

INTRODUCTION

Atrial premature complexes have been reported to be the most common arrhythmia in cattle and is suspected to be secondary to systemic disease, especially gastrointestinal disease. In order to properly identify pathologic arrhythmia in cattle, the normal rhythm and arrhythmia prevalence should be defined. The objective of this study was to determine the normal heart rate, rhythm, number of ventricular premature complexes (VPCs), and atrial premature complexes (APCs) in unrestrained Angus steers.

ANIMALS

Twenty-seven client owned steers with unremarkable physical examinations and serum biochemical analyses were used.

MATERIALS AND METHODS

Twenty-four hour Holter monitors, attached by a custom-made harness, were retrospectively evaluated. Three lead electrocardiographic registrations of good quality and normal sinus rhythm were obtained from all steers in the study.

RESULTS

The mean heart rate was 66.8 bpm ± 16.4 bpm. Ventricular premature complexes were rare (noted in 14.8% of steers), and APCs were common (noted in 85% of the steers). Simple second degree AV block was observed in 18.5% of the steers.

CONCLUSION

In summary, healthy steers have rare single VPCs, although it is possible for an individual animal to have apparent more frequent VPCs. Mean heart rate varies with a diurnal pattern similar to other species. Atrial premature complexes are the most prevalent abnormality observed in feedlot steers.

High-flow oxygen in patients undergoing procedural sedation in the emergency department: A retrospective chart review

OBJECTIVE

Hypoxia is a recognised complication of procedural sedation. This study sought to determine whether there was an association between the use of high-flow oxygen delivery by a non-rebreather (NRB) mask during ED procedural sedation and decreased rates of hypoxia when compared with alternative oxygenation methods.

METHODS

Records of all procedural sedations performed over a 12 month period in an Australian tertiary ED were reviewed retrospectively. The primary outcome was whether recorded oxygen saturations fell below 90%. Specifics of the oxygen delivery method were noted and data collected included sex, age, indication for sedation, drugs and doses administered, time of day sedation was commenced and staff grade of sedationist.

RESULTS

A total of 755 procedural sedations were reviewed. Two hundred and five (27.1%) patients were administered oxygen via NRB mask from the outset of their sedation. NRB administration was associated with a statistically significant decreased rate of hypoxia (1/205 patients vs 23/550 [odds ratio: 0.112; 95% confidence interval: 0.003-0.0702]; P = 0.0090). This association remained statistically significant when adjusted for confounders.

CONCLUSIONS

This study demonstrates an association with a statistically significant reduction in hypoxia when high-flow oxygen via NRB mask is administered during emergency procedural sedation. This intervention is simple, safe and inexpensive, and we would advocate that it be evaluated further in prospective trials.

Study Protocol on Ecological Momentary Assessment of Health-Related Quality of Life Using a Smartphone Application

Health-Related Quality of Life (HRQoL) is a construct of increasing importance in modern healthcare, and has typically been assessed using retrospective instruments. While such measures have been shown to have predictive utility for clinical outcomes, several cognitive biases associated with human recall and current mood state may undermine their validity and reliability. Retrospective tools can be further criticized for their lack of ecology, as individuals are usually assessed in less natural settings such as hospitals and health centers, and may be obliged to spend time and money traveling to receive assessment. Ecological momentary assessment (EMA) is an alternative, as mobile assessment using mobile health (mHealth) technology has the potential to minimize biases and overcome many of these limitations. Employing an EMA methodology, we will use a smartphone application to collect data on real-time HRQoL, with an adapted version of the widely used WHOQOL-BREF questionnaire. We aim to recruit a total of 450 healthy participants. Participants will be prompted by the application to report their real-time HRQoL over 2 weeks together with information on mood and current activities. At the end of 2 weeks, they will complete a retrospective assessment of their HRQoL and they will provide information about their sleep quality and perceived stress. The psychometric properties of real-time HRQoL will be assessed, including analysis of the factorial structure, reliability and validity of the measure, and compared with retrospective HRQoL responses for the same 2-week testing period. Further, we aim to identify factors associated with real-time HRQoL (e.g., mood, activities), the feasibility of the application, and within- and between-person variability in real-time HRQoL. We expect real-time HRQoL to have adequate validity and reliability, and positive responses on the feasibility of using a smartphone application for routine HRQoL assessment. The direct comparison of real-time and retrospective measures in this study will provide important novel insight into the efficacy of mHealth applications for HRQoL assessment. If shown to be valid, reliable and feasible for the collection of HRQoL data, mHealth applications may have future potential for facilitating clinical assessment, patient-physician communication, and monitoring individual HRQoL over course of treatment.

Contributing to the growth of Physical and Rehabilitation Medicine (PRM): call for a Cochrane Field in PRM

The European Society of Physical and Rehabilitation Medicine (ESPRM), together with the European Journal of PRM and the PRM Section and Board of the European Union of Medical Specialists (UEMS), started an action to establish a relationship with Cochrane (formerly the Cochrane Collaboration). Cochrane is a global, independent network of researchers, professionals, patients, carers and people interested in health, with contributors from more than 130 countries. Its aim is to produce credible, accessible health information that is free from any conflicts of interest. Cochrane produces the Cochrane Library, an evidence-based resource that includes today more than 6300 Cochrane systematic reviews. Cochrane is made up of many different review groups and other entities (such as Centres and Branches), distributed around the world, that are mainly focused on specific healthcare problems (diseases, or organs). Inside Cochrane also Fields have been created, that focus on a dimension of health care other than a specific healthcare problem. A Cochrane Field represents a bridge between Cochrane and the stakeholders of the related healthcare area. The medical specialty of PRM is covering a broad medical domain: it deals with function, activities and participation in a large number of health conditions, mostly but not exclusively musculoskeletal, neurological and cardiorespiratory. Consequently, the currently more than 200 existing Cochrane Reviews are scattered among different groups. A PRM Field could greatly serve to the need of the specialty, spreading the actual Cochrane knowledge, focusing needs today not covered by Cochrane Reviews, facing the intrinsic methodological problems of the specialty. This paper introduces a call for the development of a PRM Cochrane Field, briefly reviewing what Cochrane is and how it is organized, defining the value and identifying a pathway toward the development of a PRM Cochrane Field, and finally shortly reviewing the Cochrane reviews of PRM interest.

Bivalirudin as an adjunctive anticoagulant to heparin in the treatment of heparin resistance during cardiopulmonary bypass-assisted cardiac surgery

Heparin resistance (unresponsiveness to heparin) is characterized by the inability to reach acceptable activated clotting time values following a calculated dose of heparin. Up to 20% of the patients undergoing cardiothoracic surgery with cardiopulmonary bypass using unfractionated heparin (UFH) for anticoagulation experience heparin resistance. Although UFH has been the "gold standard" for anticoagulation, it is not without its limitations. It is contraindicated in patients with confirmed heparin-induced thrombocytopenia (HIT) and heparin or protamine allergy. The safety and efficacy of the use of the direct thrombin inhibitor bivalirudin for anticoagulation during cardiac surgery has been reported. However, there have been no reports on the treatment of heparin resistance with bivalirudin during CPB. In this review, we report the favorable outcome of our single-center experience with the alternative use of bivalirudin in the management of anticoagulation of heparin unresponsive patients undergoing coronary artery bypass graft surgery.

Laparoscopic assistance for primary transanal pull-through in Hirschsprung's disease: a systematic review and meta-analysis

OBJECTIVE

To compare outcomes following totally transanal endorectal pull-through (TTERPT) versus pull-through with any form of laparoscopic assistance (LAPT) for infants with uncomplicated Hirschsprung's disease.

DESIGN

Systematic review and meta-analysis.

SETTING

Five hospitals with a paediatric surgical service.

PARTICIPANTS

405 infants with uncomplicated Hirschsprung's disease.

INTERVENTIONS

TTERPT versus LAPT.

PRIMARY OUTCOMES

mortality, postoperative enterocolitis, faecal incontinence, constipation, unplanned laparotomy or stoma formation, and injury to abdominal viscera.

SECONDARY OUTCOMES

Haemorrhage requiring transfusion of blood products, abscess formation, intestinal obstruction, intestinal ischaemia, enteric fistula formation, urinary incontinence or retention, impotency and duration of procedure.

RESULTS

Five eligible studies comprising 405 patients were identified from 2107 studies. All studies were retrospective case series, with variability in outcome assessment quality and length of follow-up. Operative duration was 50.29 min shorter with TTERPT (95% CI 39.83 to 60.74, p<0.00001). There were no significant differences identified between TTERPT and LAPT for incidence of postoperative enterocolitis (OR=0.78, 95% CI 0.44 to 1.38, p=0.39), faecal incontinence (OR=0.44, 95% CI 0.09 to 2.20, p=0.32) or constipation (OR=0.84, 95% CI 0.32 to 2.17, p=0.71).

CONCLUSIONS

This meta-analysis did not find any evidence to suggest a higher rate of enterocolitis, incontinence or constipation following TTERPT compared with LAPT. Further long-term comparative studies and multicentre data pooling are needed to determine whether a purely transanal approach offers any advantages over a laparoscopically assisted approach to rectosigmoid Hirschsprung's disease.

TRIAL REGISTRATION NUMBER

PROSPERO registry- CRD42013005698.