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Guillain-Barré syndrome (GBS) has been reported as one of the neurological manifestations linked to COVID-19, a severe acute respiratory syndrome caused by coronavirus 2. We present the case of a 72-year-old male patient attending a tertiary care hospital in Muscat, Oman, in 2020 with a history of progressive bilateral limb weakness and numbness. The current diagnosis was in line with a rare complication of COVID-19. After exclusion of other possible causes, a diagnosis of GBS induced by COVID-19 was made. The patient received 0.4g/kg of intravenous immunoglobulin (IVIG) per day for five days. This case report highlights the characteristics and course of GBS following COVID-19 infection. Further studies are needed to characterize the manifestations and course of various neuromuscular disorders in relation to COVID-19 infection. [ABSTRACT FROM AUTHOR]

Objectives: The aim of this study was to examine patterns of troponin testing in the emergency department of a large tertiary care hospital in Oman and to determine its effect on patient management, including length of hospital stay (LOS). Methods: This retrospective study analysed the medical records of all adult patients undergoing troponin testing in the emergency department of the Sultan Qaboos University Hospital, Muscat, Oman, during the month of July 2015. Patients who presented with an ST-elevation myocardial infarction were excluded. Results: A total of 4,845 patients attended the emergency department during the study period; of these, troponin tests were ordered for 588 patients. The majority of the patients had negative troponin test results (81.3%). Chest pain, palpitations and breathlessness were the most common presenting complaints for those with positive troponin results. However, 41.8% of patients did not have any cardiac symptoms. Individuals with positive troponin tests had a significantly longer LOS compared to those with negative tests (mean: three versus one day; P = 0.001). In total, only 28.2% of those with positive troponin test results had final diagnoses associated with a cardiac condition, such as heart failure, an acute coronary syndrome (ACS), atrial fibrillation or other types of arrhythmia. Conclusion: A positive troponin test was associated with increased LOS; however, only a small proportion of these patients had a final diagnosis associated with a cardiac condition. Guidelines should be provided to ensure that troponin testing is performed only in cases where an ACS is suspected. [ABSTRACT FROM AUTHOR]