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Τρίτη 13 Απριλίου 2021

Agent-Based Modeling Simulation of Nurse Medication Administration Errors

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imageIt has been 20 years since the National Academy of Medicine released its report, "To Err Is Human," which shocked the healthcare community on the pervasiveness of medical error. While errors in medication administration are a significant contributor to medical error, research seeking to understand the complex systems nature and occurrence of medication administration error is limited. Computer modeling is increasingly being used in the healthcare industry to assess the impact of changes made to healthcare processes. The objective of the study is to evaluate the use of agent-based modeling, a type of computer modeling th at allows the simulation of virtual individuals and their behavior, to simulate nurse performance in the medication administration process. The model explores the effect of Just-in-Time information, as an intervention, on the occurrence of medication error. The model demonstrated significant utility in understanding the interplay of the system elements of the nurse medication administration process. Therefore this approach, using systems-level computer simulation such as agent-based models, can help administrators understand the effects of changes to the medication administration process as they work to reduce errors and increase performance.
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The Byzantine Role of Big Data Application in Nursing Science: A Systematic Review

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imageBig data have the potential to determine enhanced decision-making process and to personalize the approach of delivering care when applied in nursing science. So far, the literature on this topic is still not synthesized for the period between 2014 and 2018. Thus, this systematic review aimed to identify and synthesize the most recent evidence on big data application in nursing research. The systematic search was undertaken for the evidence published from January 2014 to May 2018, and the outputs were formatted using the PRISMA Flow Diagram, whereas the quality appraisal was addressed by recommendations consistent with the Critical Appraisal Skills Program. Twelve studies on big data in nursing were included and divided into two themes: the majority of the studies aimed to determine prediction assessment, while only four studies were related to the impact of big data applications to support clinical practice. This review tracks the recent state of knowledge on big data applications in nursing science, revealing the potential for nursing engagement in big data science, even if currently limited to some fields. Big data applications in nursing might have a tremendous potential impact, but are currently underused in research and clinical practice.
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Using a Systems Engineering Approach to Design an Interactive Mobile Health Application for Improving Asthma Self-management

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imageMobile health applications are in demand. According to the Grand Review Research group, there were US $12.4 billion in mobile health app sales in 2018. Increasingly, providers are seeking new ways to engage their pediatric patients. One approach is through mobile health apps. Nearly 10 000 mobile health apps target youth and teens, especially for children with conditions that require complex treatment and self-management. One such chronic illness is asthma. Children with asthma who lack social support are particularly vulnerable to exacerbations because they often are not focused on self-care. For this reason, succ essful asthma programs for children engage family members, encouraging them to play an active role on the healthcare team. The Just-in-Time Asthma Self-management Intervention is unique in several ways compared to other asthma management mobile applications. The app uses gold standard, evidence-based asthma care practices and extends the support infrastructure beyond family and healthcare providers to engage the child, their peers, and school personnel. Further, the app was built using a systems engineering approach. This article reviews the basis for developing an asthma care mobile application including the conceptual framework supporting a systems model, how the Just-in-Time Asthma Self-management Intervention is unique, and how it was built using a systems engineering design.
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Hygiene bei der HNO-Untersuchung: Fluoreszenzstudie mit Übersicht der aktuellen Empfehlungen

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Laryngorhinootologie
DOI: 10.1055/a-1408-7046

Steigende normative Ansprüche an Patientensicherheit und Maßnahmen der Qualitätssicherung, aber auch die Problematik multiresistenter Keime und von Erregern mit hohem Ansteckungspotenzial verstärken die Notwendigkeit hygienisch korrekten Arbeitens.In dieser Studie sollten hygienisch relevante potenzielle Kontaminationsquellen bei der HNO-Untersuchung identifiziert und mögliche Verbesserungsstrategien untersucht werden.Von 5 Untersuchern mit unterschiedlicher Berufserfahrung, deren Handschuhe vor der Untersuchung mit Fluoreszenzlotion benetzt wurden, wurde eine komplette HNO-Untersuchung durchgeführt. Kontaminierungen insbesondere an der Untersuchungseinheit und am Instrumentarium wurden identifiziert. Das potenzielle Risiko einer Übertragung von Erregern auf Folgepatienten wurde mittels eines eigens entwickelten Scores bewertet. Verschiedene Strategien zur Reduzierung identifizierter Kontaminationsmöglichkeiten wurden erarbeitet und gedanklich durchgespielt.Der Score der Untersucher war mit im Mittel 87,4 Punkten (±3,6) sehr hoch. Die Umsetzung von einzelnen Hygienemaßnahmen im Untersuchungsablauf würde zu einer deutlichen Erniedrigung des Scores und damit einer Verbesserung der Hygiene führen: kein Händeschütteln (81,8), zusätzlich Patientenstuhldesinfektion (79,8), Desinfektion wichtiger Flächen (69,8), Bereitstellen von Standardinstrumenten (60,2) oder aller Instrumente (32,2), Desinfektion aller relevanten Flächen und Bereitstellen aller Instrumente (7,4).Die Ergebnisse zeigen sehr deutlich, dass eine HNO-Untersuchung aus Sicht der Hygiene einen komplexen Vorgang darstellt. Für einen verlässlichen Schutz vor möglichen Übertragungsereignissen ist deshalb eine strukturierte Bündelung von Hygienemaßnahmen notwendig.
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Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, Germany

Article in Thieme eJournals:
Table of contents  |  Abstract  |  Full text

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Skin-Reducing Mastectomy with Immediate Prepectoral Reconstruction: Surgical, Aesthetic, and Patient-Reported Outcomes with and without Dermal Matrices

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imageBackground: Prepectoral breast reconstruction is being increasingly popularized, largely because of technical advances. Patients with ptotic breasts and active cancer require mastectomies through a mastopexy excision pattern to achieve proper pocket control in a prepectoral single-stage operation. This article presents a single-surgeon experience with direct-to-implant, prepectoral reconstruction following skin-reducing mastectomies. Methods: A retrospective chart review identified all patients undergoing prepectoral, direct-to-implant breast reconstruction following Wise-pattern mastopexy from June of 2016 to June of 2018. Surgical and aesthetic outcomes, including capsular contracture and revision surgery, were measured. The BREAST-Q was administered preoperatively, 6 months postoperatively, and 1 year postoperatively. Results: Eighty-four patients (121 breasts) were included. A widely based inframammary fold adipodermal flap was used in all cases, with acellular dermal matrix used in 77 breasts (63.3 percent), free nipple grafts in 42 breasts (34.7 percent), and postmastectomy radiation therapy in 31 breasts (26.5 percent). Operative complications included nipple-areola complex necrosis in six (5.1 percent), hematoma in four (3.4 percent), seroma in four (3.4 percent), implant exposure in three (2.6 percent), and infection in one (0.9 percent). Minor complications included cellulitis in five (6.0 percent) and minor wound issues in five (4.3 percent). In aesthetic outcomes, only two nonirradiated breasts experienced a grade 3 to 4 or grade 4 capsular contracture requiring capsulectomy. Rippling was visible in four breasts (3.4 percent). The BREAST-Q showed good satisfaction with the technique, with no significant differences between nipple-areola complex techniques. Conclusions: This cohort represents the largest single-surgeon, Wise-pattern, direct-to-implant prepectoral database in the literature. This report showed that surgical and aesthetic complications did not differ in terms of acellular dermal matrix use. This technique has shown, through patient-reported outcomes, to yield good patient satisfaction. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.
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Perforator-Based Intercostal Artery Muscle Flap: A Novel Approach for the Treatment of Tracheoesophageal or Bronchoesophageal Fistulas

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imageSummary: Postoperative tracheoesophageal or bronchoesophageal fistulas represent a major surgical challenge. The authors report the description of an original perforator-based intercostal artery muscle flap, aiming to cover all types of intrathoracic fistulas, from any location, in difficult cases such as postoperative fistulas after esophagectomy in an irradiated field. Between June of 2016 and January of 2019, eight male patients were treated with a perforator-based intercostal artery muscle flap. All had previous surgery for esophageal cancer and developed a tracheoesophageal or bronchoesophageal fistula during the perioperative course. The mean patient age was 55.9 ± 8.8 years. All patients received neoadjuvant chemotherapy and seven received neoadjuvant radiation therapy. A perforator-based intercostal artery muscle flap, with a mean skin paddle size of 9.86 × 5 cm, was harvested. The median operative time was 426.50 minutes. The tracheoesophageal or bronchoesophageal fistula was succe ssfully and definitively occluded in three patients; two patients experienced recurrence; and one patient underwent reoperation. At 1 year, five patients were alive (62.5 percent), and among them, three (37.5 percent) were free from any intrathoracic complications. Three patients died, because of massive digestive bleeding, mesenteric ischemia, and multiorgan failure, respectively. The perforator-based intercostal artery muscle flap, like the Taylor flap in abdominoperineal reconstruction, could become a workhorse flap for all intrathoracic reconstructions, as it can always be harvested, even if a previous thoracotomy has ruined most of the options. This surgical technique, easily feasible, reliable, and reproducible, became our first option for all postoperative tracheoesophageal or bronchoesophageal fistula patients during the postoperative course following esophagectomy. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.
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Rhinosurgery during and after the COVID-19 Pandemic: International Consensus Conference Statement on Preliminary Perioperative Safety Measures

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imageBackground: The coronavirus disease of 2019 (COVID-19) pandemic has widely affected rhinosurgery, given the high risk of contagion and the elective nature of the aesthetic procedure, generating many questions on how to ensure safety. The Science and Research Committee of the Rhinoplasty Society of Europe aimed at preparing consensus recommendations on safe rhinosurgery in general during the COVID-19 pandemic by appointing an international panel of experts also including delegates of The Rhinoplasty Society. Methods: A Zoom meeting was performed with a panel of 14 international leading experts in rhinosurgery. During 3.5 hours, four categories of questions on preoperative safety measures in private practice and outpatient clinics, patient assessment before and during surgery, and legal issues were presented by four chairs and discussed by the expert group. Afterward, the panelists were requested to express an online, electronic vote on each category and question. The panel's recommendations were based on current evidence and expert opinions. The resulting report was circled in an iterative open e-mail process until consensus was obtained. Results: Consensus was obtained in several important points on how to safely restart performing rhinosurgery in general. Preliminary recommendations with different levels of agreement were prepared and condensed in a bundle of safety measures. Conclusion: The implementation of the panel's recommendations may improve safety of rhinoplasty by avoiding operating on nondetected COVID-19 patients and minimizing severe acute respiratory syndrome coronavirus 2 virus spread in outpatient clinics and operating rooms.
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The Utility of the Subalar Graft in Nostril Symmetry in Rhinoplasty

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imageBackground: A deviated nose can be attributable to multiple anatomical factors, including asymmetric maxilla. A subalar graft helps to correct maxillary hypoplasia and may be a useful tool for correcting a deviated nose. The authors' objective is to show the effects of the subalar graft in improving nostril symmetry and to propose an algorithm for using this graft in open and endonasal rhinoplasty. Methods: A retrospective case series was performed on patients who had undergone rhinoplasty performed by the senior author (R.W.) from September of 2008 to July of 2015. Patients with at least 3 months of follow-up and adequate photographs were included. The mean follow-up period was 11.0 months (range, 3 to 72 months). A total of 68 patients were included. Preoperative and postoperative photographs were analyzed to measure changes in nasal axis deviation, alar facial angle on base view, alar facial angle on frontal view, and nostril show bilaterally. Results: Of the 68 patients, statistically significant improvement of nasal axis deviation of 4.32 degrees toward the midline was observed. Alar facial angle on base view was improved 1.01 degrees toward the horizontal. Nostril symmetry also improved based on the ratio between the shorter side and the longer side. The mean change in nostril show ratio was 0.19 toward a 1:1 ratio. Conclusions: Previous studies have shown that the subalar grafting technique is an important adjunctive technique in rhinoplasty for patients with midfacial asymmetries. This case series demonstrates that this technique can provide sustained results in the correction of the nasal foundation. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.
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The Association of Zygomaticomaxillary Complex Fractures with Naso-Orbitoethmoid Fractures in Pediatric Populations

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imageBackground: Naso-orbitoethmoid fractures associated with ipsilateral zygomaticomaxillary complex fractures are more challenging injuries than zygomaticomaxillary complex fractures alone. However, there is a paucity of information on this complex fracture pattern in the pediatric population. This study investigated the cause, treatment, and outcomes of combined zygomaticomaxillary complex and naso-orbitoethmoid fractures versus isolated zygomaticomaxillary complex fractures in pediatric patients. Methods: This was a 25-year retrospective cohort study of pediatric patients who presented to a single institution with zygomaticomaxillary complex fractures. Baseline patient demographics and clinical information, and concomitant injuries, treatment/operative management, and postoperative complications/deformities were recorded and compared between patients with combined zygomaticomaxillary complex and naso-orbitoethmoid fractures and patients with isolated zygomaticomaxillary complex fractures. Results: Forty-nine patients were identified to have had zygomaticomaxillary complex fractures in the authors' 25-year study period, of whom 46 had adequate clinical documentation and follow-up. Seventeen patients had combined zygomaticomaxillary complex–naso-orbitoethmoid fractures, of whom six had panfacial fractures. Both patient groups (zygomaticomaxillary complex only and combined zygomaticomaxillary complex–naso-orbitoethmoid fractures) were similar in terms of demographics. However, a significantly greater proportion of combined fracture patients experienced postoperative complications compared to isolated zygomaticomaxillary complex fracture patients, even after excluding those with panfacial fractures (87.5 percent versus 35.3 percent; p
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The Intra.Ox Near-Infrared Spectrometer Measures Variations in Flap Oxygenation That Correlate to Flap Necrosis in a Preclinical Rodent Model

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imageBackground: Mastectomy flap necrosis affects 7 to 40 percent of patients undergoing immediate breast reconstruction, with many cases resulting in infection and/or explantation. The Intra.Ox near-infrared spectrometer is one of several novel devices that assesses tissue perfusion by measuring the interactions of light with oxygenated and deoxygenated hemoglobin. This handheld device facilitates serial flap perfusion assessment and may objectively identify at-risk tissues and guide evidence-based treatment algorithms. In this preliminary study, we hypothesized that the Intra.Ox spectrometer detects differences in tissue oxygenation that correlate to tissue necrosis. Methods: Dorsal, random-pattern flaps measuring 10 × 3 cm were raised in eight male Sprague-Dawley rats. Intraoperative tissue oxygen saturation was measured using Intra.Ox in 10 standardized locations. On postoperative day 7, the skin flaps were evaluated for full-thickness necrosis. Data were analyzed using the chi-square test and one-way analysis of variance. A receiver operating characteristic curve assessed the accuracy of intraoperative tissue oxygenation in predicting the risk of flap necrosis. Results: Tissue oxygen saturation exhibited a strong negative correlation to distance from the flap pedicle (r = −0.798). Oxygen saturation in tissue that developed necrosis averaged 32 percent, compared to 59 percent in tissues that did not (p
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Impacts of Rehabilitation Gait Training on Functional Outcomes after Tibial Nerve Transfer for Patients with Peroneal Nerve Injury: A Nonrandomized Controlled Trial

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imageBackground: Although there was initial success using tibial nerve transfer to restore ankle dorsiflexion following peroneal nerve injury, results from later series were less promising. A potential reason is coactivation of the much stronger antagonistic muscles during gait. The purpose of this study was to test the hypothesis that gait training would improve functional performance following tibial nerve transfer. Methods: Using a prospective, nonrandomized, controlled study design, patients were divided into two groups: surgery only or surgery plus gait training. Of the 20 patients who showed reinnervation in the tibialis anterior muscle, 10 were assigned to the gait training group, and an equal number were in the control group. Those in the treatment group began training once reinnervation in the tibialis anterior muscle was detected, whereas those in the control group continued to use their ankle-foot orthosis full time. Differences in ankle dorsiflexion was measured using the Medical Research Council scale, and quantitative force measurement and functional disability was measured using the Stanmore Scale. Results: Patients in the gait training group attained significantly better functional recovery as measured by the Stanmore Scale (79.5 ± 14.3) (mean ± SD) versus (37.2 ± 3.5) in the control group (p = 0.02). Medical Research Council grades were 3.8 ± 0.6 in the training group versus 2.5 ± 1.2 in the surgery only group (p
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