Publications by authors named "Linda Stephens"

Background: Communication amongst team members is critical to providing safe, effective medical care. We investigated the role of communication failures in patient injury using the Anesthesia Closed Claims Project database.

Methods: Claims associated with surgical/procedural and obstetric anaesthesia and postoperative pain management for adverse events from 2004 or later were included.

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Background: Perioperative pulmonary aspiration of gastric contents has been associated with severe morbidity and death. The primary aim of this study was to identify outcomes and patient and process of care risk factors associated with gastric aspiration claims in the Anesthesia Closed Claims Project. The secondary aim was to assess these claims for appropriateness of care.

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Objective: Creating an environment that supports conditions of routine clinical practice and enables an effectiveness trial design with a pre-licensed medicine is extremely challenging. Here, we summarise our experiences and achievements with engaging and mobilising community pharmacies in and around Salford, United Kingdom, in the Phase III effectiveness Salford Lung Studies (SLS).

Methods: This article provides the authors' personal experiences and viewpoints on community pharmacy involvement in the SLS.

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Background: Although spine surgery is associated with significant morbidity, the anesthesia liability profile for spine surgery is not known. We examined claims for spine procedures in the Anesthesia Closed Claims Project database to evaluate patterns of injury and liability.

Materials And Methods: A retrospective cohort study was performed.

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Background: Malpractice claims that arise during the perioperative care of patients receiving orthopaedic procedures will frequently involve both orthopaedic surgeons and anesthesiologists. The Anesthesia Closed Claims database contains anesthesia malpractice claim data that can be used to investigate patient safety events arising during the care of orthopaedic patients and can provide insight into the medicolegal liability shared by the two specialties.

Questions/purposes: (1) How do orthopaedic anesthetic malpractice claims differ from other anesthesia claims with regard to patient and case characteristics, common events and injuries, and liability profile? (2) What are the characteristics of patients who had neuraxial hematomas after spinal and epidural anesthesia for orthopaedic procedures? (3) What are the characteristics of patients who had orthopaedic anesthesia malpractice claims for central ischemic neurologic injury occurring during shoulder surgery in the beach chair position? (4) What are the characteristics of patients who had malpractice claims for respiratory depression and respiratory arrests in the postoperative period?

Methods: The Anesthesia Closed Claims Project database was the source of data for this study.

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Obstetric practice carries a high risk of medical liability and involves both obstetricians and anesthesiologists. Analysis of data from the Anesthesia Closed Claims Project database shows an increase in the proportion of anesthesia claims for maternal death and brain damage between the 1990s and 2000 and later, primarily due to hemorrhage. The proportion of claims for newborn brain damage remained unchanged while those for maternal nerve injury and minor injuries decreased.

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Article Synopsis
  • - The study examined anesthesia-related liability claims linked to implantable pain management devices, finding that there were 148 claims from 1990 onward involving various damaging events like medication errors and infections.
  • - The most prevalent devices were implantable drug delivery systems (IDDS) and spinal cord stimulators, with IDDS maintenance claims resulting in more severe injuries (56% leading to death or permanent damage) compared to surgical device procedure claims (26%).
  • - Major causes of harm in IDDS maintenance were medication errors and failure to identify granuloma formation, while surgical procedures mainly faced issues like infections and inadequate pain relief; thus, careful management of these devices is essential to prevent patient risks.
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Background: The authors examined changes in the frequency of pain medicine malpractice claims and associated treatment modalities and outcomes over time.

Methods: The authors analyzed trends in pain medicine claims from 1980 to 2012 in the Anesthesia Closed Claims Project database by binary logistic regression on year of event. Pain procedures in claims from 2000 to 2012 were compared with the proportion of pain procedures reported to the National Anesthesia Clinical Outcomes Registry in 2010-2014.

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Background: Postoperative opioid-induced respiratory depression (RD) is a significant cause of death and brain damage in the perioperative period. The authors examined anesthesia closed malpractice claims associated with RD to determine whether patterns of injuries could guide preventative strategies.

Methods: From the Anesthesia Closed Claims Project database of 9,799 claims, three authors reviewed 357 acute pain claims that occurred between 1990 and 2009 for the likelihood of RD using literature-based criteria.

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Background: Hemorrhage is a potentially preventable cause of adverse outcomes in surgical and obstetric patients. New understanding of the pathophysiology of hemorrhagic shock, including development of coagulopathy, has led to evolution of recommendations for treatment. However, no recent study has examined the legal outcomes of these claims.

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Purpose: To review a series of closed liability claims for upper extremity conditions to guide improvements for upper extremity care and thereby reduce the frequency of paid claims.

Methods: The authors, a team of 3 orthopedic surgeons and 3 nonphysician investigators experienced in closed claims research, investigated 108 closed upper extremity liability claims from a large United States-wide insurer for events that occurred between 1996 and 2009. We sought to determine the types of conditions, treatments, and surgeon factors common to claims made and claims paid.

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Objective: It is accepted that the length of the anterior segment of the pelvis in classic bladder exstrophy is shorter than that of controls. However, studies performed involve children with a wide range of ages. By studying children with classic bladder exstrophy under the age of 1 year, the authors aim to ascertain if there is a congenital pubic bone length discrepancy associated with bladder exstrophy.

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The Human Immunodeficiency Virus, (HIV-1), has become a major global health threat with recent estimates suggesting that 68% of people living with HIV (PLWH) reside in Sub-Saharan Africa. The current strategies for containment of this disease in the absence of an effective vaccine are of concern in terms of long-term fiscal sustainability and cost effectiveness. HIV prevalence rates are set to rise, not because of increasing incidence but rather because of the effort involved in implementing the anti-retroviral (ARV) programmes, especially on the African continent.

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Background: An orthopaedic malpractice claim alleges that the patient sustained a preventable iatrogenic injury. The analysis of a representative series of malpractice claims provides a unique view of alleged orthopaedic adverse events, revealing what can potentially go wrong across a spectrum of practice settings and anatomic locations. The goal of this study was to identify high-impact targets in order to institute measures to reduce claims through efforts focused on patient safety.

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Background: Trauma care has many challenges, including the perception by nonanesthesia physicians of increased medical malpractice liability. We used the American Society of Anesthesiologists' Closed Claims Project database and the National Inpatient Sample (NIS) to compare the rate of claims for trauma anesthesia care to national trauma surgery data. We also used the American Society of Anesthesiologists' Closed Claims Project database to evaluate injury and liability profiles of trauma anesthesia malpractice claims compared to nontrauma surgical anesthesia claims.

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Plasmodium falciparum 1-deoxy-D-xylulose-5-phosphate reductoisomerase (PfDXR) is a key enzyme in the synthesis of isoprenoids in the malaria parasite, using a pathway that is absent in the human host. This enzyme is receiving attention as it has been validated as a promising drug target. However, an impediment to the characterisation of this enzyme has been the inability to obtain sufficient quantities of the enzyme in a soluble and functional form.

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Introduction: Malrotation is a common abnormality, often diagnosed in the neonatal period. Symptoms may be nonspecific and clinical signs of volvulus are often only seen in the late stages when there has been significant ischemic insult to the bowel. The gold standard diagnostic investigation is the upper gastrointestinal (UGI) contrast study.

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Background: The rate of autopsy in hospital deaths has declined from more than 50% to 2.4% over the past 50 yr. To understand the role of autopsies in anesthesia malpractice claims, we examined 980 closed claims for deaths that occurred in 1990 or later in the American Society of Anesthesiologists Closed Claims Project Database.

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Plasmodium falciparum heat shock protein 70 (PfHsp70-1) is thought to play an essential role in parasite survival and virulence in the human host, making it a potential antimalarial drug target. A malate dehydrogenase based aggregation suppression assay was adapted for the screening of small molecule modulators of Hsp70. A number of small molecules of natural (marine prenylated alkaloids and terrestrial plant naphthoquinones) and related synthetic origin were screened for their effects on the protein aggregation suppression activity of purified recombinant PfHsp70-1.

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Background: Prompted by an increase in interventional pain treatments performed at the level of the cervical spine, we investigated the characteristics and patterns of injury in malpractice claims collected from January 1, 2005 to December 31, 2008.

Methods: We compared claims arising from cervical pain treatments with all other chronic pain claims collected from the American Society of Anesthesiologists' closed claims database between 2005 and 2008. Claims for spinal cord injury underwent in-depth analysis for mechanisms of injury and use of sedation during the procedure.

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Molecular chaperones have been used for the improved expression of target proteins within heterologous systems; however, the chaperone and target protein have seldom been matched in terms of origin. We have developed a heterologous co-expression system that allows independent expression of the plasmodial chaperone, PfHsp70, and a plasmodial target protein. In this study, the target was Plasmodium falciparum GTP cyclohydrolase I (PfGCHI), the first enzyme in the plasmodial folate pathway.

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Heat shock protein 70 (Hsp70) and heat shock protein 40 (Hsp40) function as molecular chaperones during the folding and trafficking of proteins within most cell types. However, the Hsp70-Hsp40 chaperone partnerships within the malaria parasite, Plasmodium falciparum, have not been elucidated. Only one of the 43 P.

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Background: Environmental heterogeneity plays a major role in invasion and coexistence dynamics. Habitat segregation between introduced species and their native competitors is usually described in terms of different physiological and behavioural abilities. However little attention has been paid to the effects of behaviour in habitat partitioning among invertebrates, partially because their behavioural repertoires, especially marine benthic taxa, are extremely limited.

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Background: Medication management is an integral part of chronic pain management. Prompted by an increase in the role of medication management in anesthesia chronic pain liability, we investigated the characteristics of malpractice claims collected from 2005 to 2008.

Methods: After Institutional Review Board approval, we compared medication management claims with other chronic pain claims from the American Society of Anesthesiologists Closed Claims Database of 8,954 claims.

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A three-dimensional model of the malarial drug target protein PfDXR was generated, and validated using structure-checking programs and protein docking studies. Structural and functional features unique to PfDXR were identified using the model and comparative sequence analyses with apicomplexan and non-apicomplexan DXR proteins. Furthermore, we have used the model to develop an efficient approach to screen for potential tool compounds for use in the rational design of novel DXR inhibitors.

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