P034 Inter-scorer concordance impacts MSLT results

Introduction A retrospective study on the effect of inter-scorer concordance and impact of analysing polysomnography (PSG) data prior to the Multiple Sleep Latency Test (MSLT) on clinical interpretation of Narcolepsy (N) and Idiopathic Hypersomnolence (IH). Methods Data of four individuals was randomly selected from a cohort of patients that participated in MSLT studies. De-identified MSLT fragments from four nap periods (n=16) were scored in two groups: analysis of PSG conducted prior to the respective MSLT fragments, and analysis without access to prior PSG. Individual scorers were compared to a master score set, by consensus from two experienced sleep scientists. Spearman correlation and percentage agreement statistics were applied to calculate the inter-scorer concordance in sleep latency and REM latency. Mann-Whitney test was utilised to assess differences between the two groups. A positive result was assigned as: mean (n=4) sleep latency of <10min (IH), and mean (n=4) sleep latency of <8min including (n=2) SOREMs (N). Results From 16 sets of data, four false positive results were identified when PSG was not analysed prior to scoring the MSLT fragments. Additionally, statistically significant differences were present when PSG analysis was conducted prior to scoring MSLT sleep latency and REM latency data. Discussion These results support a recommendation that PSG analysis (sleep and REM latency) should be encouraged prior to MSLT studies and performed by the same sleep scientist. Furthermore, including MSLT data in intra-lab concordance activities is important, particularly in relation to medical interpretation and practice.

Laboratory findings in imaging diagnostic tests in patients infected with COVID-19 – A study review

Purpose: This study disseminates the diagnosis of COVID-19 emphasizing the importance of imaging tests in medical interpretation and identification of its complications, besides demonstrating the contribution to patient care. Methodology: The study was conducted based on a literature review, in addition to the acquired results of imaging tests from clinical patients at a Public Hospital of the State of Sergipe, Brazil, to point the scoring system in thorax radiography and compare to computed tomography (CT). Results: The imaging tests are not indicated for patients with mild symptoms and suspected COVID-19 infection, except for risk of disease progression, being indicated in the complementary diagnosis of COVID-19 positive patients. Studies show that thorax radiography is more used because it has low cost and easy access. However, its use has limitations due to the low sharpness of the images and impossibility of visualization of some lesions. Computed tomography, on the other hand, can be used as a pulmonary monitoring and evolution test in patients with COVID-19 worsening and/or persistent homeostatic changes. Nevertheless, this test is not indicated for acute cases without aggravating symptoms. Conclusion: The high degree of dissemination of SARS-CoV-2 and the collapse of health systems demonstrated the importance of the science in health. In addition, the importance of laboratory tests in the diagnosis of virus infection and imaging tests in the early diagnosis of SARS-CoV-2 pneumonia has been shown as efficient complementarity in the evolution and clinical interpretation of patients, highlighting the importance of radiography and CT exams.

Advancing Health Equity During the COVID-19 Pandemic through Digital Medical Interpretation Platforms

Background: Medical Interpretation Services (MIS) is the gold-standard that should be used during clinical assessments with patients who have limited English proficiency (LEP) or have hearing loss. The COVID-19 pandemic has highlighted the urgent need for clear, concise medical communication between patients and clinicians to prevent the spread of COVID-19 and ensure public safety. Cost of MIS is covered by the provincial health authority in Alberta; however, it is not consistently utilized across the province.Aim: To implement digital MIS in the Emergency Department (ED) of one urban teaching hospital, improving accuracy of clinical assessment and to provide patient-centered communication. Methods: Applying quality improvement methodology, an intervention comprised of digital MIS technology and education was trialed for 6 months. To assess intervention effect, the number of MIS minutes and calls were measured monthly and a questionnaire was developed and administered to determine ED healthcare providers’ awareness, technology accessibility and perception of MIS integration into the clinical workflow. Results: Digital MIS was utilized consistently in the ED from the beginning of the COVID-19 pandemic (March 2020) and over the subsequent six months. The cost avoidance due to digital MIS usage was estimated to be $19,612.16. ED healthcare providers indicated that digital MIS helped smooth communication with patients and reduced the time it took to gather and provide accurate information. Conclusion: Providing digital MIS access, education and training is a means to advance health equity, by improving accuracy of clinical assessment and patient-centered care in the ED.

Historical Overview of the “Firing” Liaison between Brain Tumors and Epilepsy

This review addresses, in a critical historical perspective, the link between seizures and endocranic neoplasms. Folkloric descriptions of epilepsy can be found in writings from ancient cultures. Hippocrates first provided a medical interpretation. In 1770, Tissot published Traité de l’épilepsie, a milestone in epileptology, whereas the 19th century is considered the golden era of epileptic studies. In 1882, the father of modern epileptology, Jackson, in his article Localized Convulsions from Tumour of the Brain, reported a case of a patient affected by typical Jacksonian seizures in the presence of a brain tumor. However, he did not establish a direct correlation between brain tumors and epilepsy, and an explanation for his clinical case was lacking. Before Jackson’s article, other authors reported similar cases, but only Gairdner in 1834 published a report suggesting the concept of a direct relationship between epilepsy and a brain tumor. From the beginning until the mid of the 20th century several authors reported seizures attributed to intracranial tumors, and in recent years studies have focused on the pathogenesis of tumor-related seizures. Biochemical and molecular changes in brain tumors and their environment opened unprecedented working hypotheses on epileptogenesis and on treatment of epilepsy associated with brain tumors.

Power from indirect pain: a historical phenomenology of medical pain management

The article aims at reconstructing how pain is used in contemporary societies in the process of engraving power. Firstly, a social phenomenological analysis of pain is conducted: Husserl’s and Merleau-Ponty’s ideas are used for clarifying the experience of pain itself; Elaine Scarry’s analyses are overviewed in order to reconstruct how pain contributes to the establishing of power. Secondly, this complex approach is applied in early modern context: the parallel processes of the decline of a transcendental and the emergence of a medical interpretation of pain is introduced, along with the marginalization of violence. Thirdly, the era characterized by the triumph of medical pain management is analysed: it is argued that the constitutive role of pain in establishing power does not cease to exist with the emergence of technologies of discursive governance (Foucault); it is an open question, what sort of power is engraved through pain understood in strictly medical frames.