Background: Health care workers (HCWs) are at high risk of acquiring infections during this ongoing COVID-19 outbreak. This study was aimed at determining the prevalence of SARS-CoV-2 infection, the socio demographic and clinical profile and the possible risk factors for infection among the HCWs at Mugda Medical College Hospital (MuMCH). Method: This retrospective observational study was done among the HCWs of MuMCH from 19 April, 2020 to 15 May, 2020. The SARS-CoV-2 positive 37 HCWs were interviewed over telephone by a structured questionnaire and the obtained data were analyzed by using descriptive statistics. Result: Out of total 343 HCWs, total 37(10.79%) cases were detected COVID-19 positive. Out of them, 13(35.14%) were male and 24 (64.86%) were female. The median age was 36 years. Among the infected HCWs, 26 (70.27%) did not have any pre-existing comorbidities. Bronchial asthma (13.51%) and HTN (13.51%) were the most prevalent comorbidities. Around 43.24% (16) had no definite symptoms for COVID- 19. Among the 21(56.76%) symptomatic cases, 15(40.54%) had mild and 6(16.22%) had moderate symptoms. The most common symptoms were cough (16, 43.24%), fever (11, 29.73%), sore throat (7, 18.92%) and fatigue/malaise (7, 18.92%). All had completely recovered uneventfully although 22(59.46%) got admitted to hospital. Only 12(32.43%) were involved in aerosol generating procedure. Total 26 cases (70.27%) used appropriate PPE during their duty. Although only 4(10.81%) got adequate training on PPE use, 33(89.19%) of them had adequate knowledge on that. About 15(40.54%) were reusing PPEs. Most of them (33, 89.20%) were not taking any chemoprophylaxis; all were following traditional preventive measures. Among the HCWs, 26(70.27%) were not satisfied with the infection prevention and control (IPC) measures taken by the hospital authority. All of them presumed that, their occupational exposure was the possible source of COVID-19 infection. Conclusion: More than 1 in 10 HCWs at MuMCH was infected with SARS-CoV-2 while working at the hospital. They represented the younger age group, had fewer comorbidities. Nurses were the most affected category. All experienced uneventful recovery and most of them were not satisfied with the IPC measures taken by the hospital authority. Further studies are required to identify the level of risk of infection, possible risk factors and outcomes and to improve the IPC measures of the hospital. J Bangladesh Coll Phys Surg 2020; 38(0): 43-49

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The objective of this study was to determine the changes and sensitivity of electro encephalogram during interictal period and to evaluate the finding in the clinically suspected seizure events in a tertiary care hospital of Bangladesh. This cross sectional study was carried out in the Electrophysiology Laboratory of Dhaka Medical College Hospital from July 2010 to July 2011, which included 767 patients. EEG was obtained through scalp electrodes following international 10/20 system. Patient and their attendants were interviewed using a semi structured questionnaire. The EEG findings and clinical seizure events were then compared. Among the 767 epilepsy patients most were children (39.9% less than 10 years old) and young adult (33.2% in 11–20 years age group). Female patients predominantly had seizure than male (57% and 43% respectively). The overall sensitivity of EEG in yielding abnormal interictal epileptiform discharges was 62.7%. About 48.5% of them were diagnosed as localization related epilepsy and 11.7% were generalized epilepsy. Morphology showed spike and wave in 74% and sharp and wave in 11% tracings. Only 2% had slow waves. The presence of an interictal spike/sharp wave helps to confirm a clinical diagnosis of epilepsy, aids in defining the epilepsy syndrome, provides information that assists in planning drug management.

J Dhaka Medical College, Vol. 21, No. 2, October, 2012, Page 131-139 DOI: http://dx.doi.org/10.3329/jdmc.v21i2.15299

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