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COVID-19 detected from targeted contact tracing, attempting to see the pattern in random happenings: early lessons in Malaysia

Ng BH, Andrea YLB, Nuratiqah NA, Faisal AH, Soo CI, Najma K, et al.

Med J Malaysia, 2020 09;75(5):582-584.
PMID: 32918430

The world feels strange as we face what is for most of us our first ever pandemic. The number of newly diagnosed cases rises daily in many parts of the world, and we are faced with the reality that there are still many things to learn about this new disease. We share here our experience of treating our first 199 COVID-19 patients in the Hospital Canselor Tuanku Muhriz, Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM).
Understanding of Coronavirus Disease 2019 (COVID-19) and the practice of preventive measures among doctors and nurses in a university teaching hospital- A cross-sectional study

Ng BH, Low HJ, Nik Nuratiqah NA, Faisal AH, Soo CI, Periyasamy P, et al.

Med J Malaysia, 2021 07;76(4):454-460.
PMID: 34305104

INTRODUCTION: Knowledge and adequate practice of preventive measures among health care workers (HCWs) are important to reduce the risk of COVID-19 transmission.
METHODS: A cross-sectional study was conducted among doctors and nurses in the medical department in Pusat Perubatan Universiti Kebangsaan Malaysia between November 18, 2020 and December 18, 2020 during the third wave of COVID-19 epidemic in Malaysia. We studied the knowledge and practice of preventive measures of COVID-19 among doctors and nurses in the COVID-19 or sudden acute respiratory infection (SARI) wards and general medical wards. Data was collected using a validated self-designed google form online-questionnaire.
RESULTS: A total of 407 subjects completed the study and 80.8% were females; 55.8% were aged between 30-39 years; 46.4% were medical doctors. The main source of COVID-19 knowledge was the Ministry of Health Malaysia (MOH) website (35.1%). Majority (97%) had sufficient knowledge and 82% practiced proper preventive measures. Doctors had a higher mean knowledge score compared to nurses (p < 0.001). HCWs working in COVID-19 or SARI wards scored higher in knowledge questions compared to those in the general medical wards (p = 0.020). Nurses practiced better preventive measures (p < 0.001). Good knowledge could not be predicted based on professions (OR: 0.222, 95% CI: 0.048 - 1.028, p = 0.054). Majority were unable to recall the proper steps of donning (85.8%) and doffing (98.5%).
CONCLUSIONS: Although majority had good knowledge and practiced proper preventive measures, there was a poor recall in donning and doffing steps regardless of place of practice. The MOH website is a useful platform for tailored continuous medical education and regular updates on COVID-19. Regular training and retraining on donning and doffing of PPE is needed to bridge this gap.
Clots in tuberculosis

Ng BH, Andrea YLB, Nuratiqah NA, Faisal AH, Low HJ

Med J Malaysia, 2021 Nov;76(6):953-955.
PMID: 34806695

Tuberculosis (TB) is a common communicable disease. Active TB infection may be complicated by both venous and arterial thrombosis which are often under-recognised. We report two patients with incidental TB associated thrombosis involving different venous systems. Both responded to anticoagulant and anti-tuberculous therapy (ATT). Patients with tuberculosis are at risk of VTE and careful monitoring for venous thromboembolism (VTE) is needed during ATT. Our case illustrates the importance of having a high index of suspicion for silent VTE as it may complicate active TB infection.
Fulltext A descriptive study of the psychological experience of health care workers in close contact with a person with COVID-19

Ng BH, Nuratiqah NA, Faisal AH, Soo CI, Low HJ, Najma K, et al.

Med J Malaysia, 2020 09;75(5):485-489.
PMID: 32918414

BACKGROUND: COVID-19 has the potential to affect the mental health of health care workers (HCWs). It is known that HCWs who serve as front-liners during the COVID-19 pandemic experience stress and have the fear of contracting the infection. Little is known of how being a positive contact affects HCWs.

OBJECTIVE: We examined the experience of HCWs who were quarantined following a close unprotected contact with a COVID-19 positive colleague and explore the psychological impact especially as the timing of the quarantine coincided with the Eid (annual Muslim festival) celebration in Malaysia.

METHODS: This was a cross-sectional on-line questionnaire study, involving HCWs exposed to a COVID-19 positive colleague in Universiti Kebangsaan Malaysia Medical Centre, a teaching hospital. Data on demographics, levels of depression, anxiety and stress using a validated depression, anxiety, and stress scale (DASS-21) questionnaire, aspects of quarantine, wearing of masks, hand hygiene practice and swab experience were collected.

RESULTS: Twenty-two HCWs participated. Eighteen (81.8%) were between 30-39 years and 17 (77.3%) were women. Majority 19 (86.3%) were Malays. There were twelve (54.5%) medical officers, 5 (22.7%) specialists and 5(22.7%) allied health staff. Eighteen out of 22 (81.8%) felt they were able to do home quarantine adequately. All tested negative with a mean (Standard Deviation) hour of contact of 2.56±2.38 hours. Eighteen reported their biggest concern was infecting their families.

CONCLUSION: HCWs undergoing contact swabbing and quarantine are vulnerable to depression, anxiety and stress. The ability of the HCW to adequately home quarantine should not be taken for granted. Psychological support should be offered to HCWs who are positive contacts.
Predictive risk factors for pneumothorax following fluoroscopic-guided transbronchial lung biopsy

Ng BH, Low HJ, Nuratiqah NA, Soo CI, Imree A, Mas FMJ, et al.

Med J Malaysia, 2023 Dec;78(7):897-900.
PMID: 38159925

INTRODUCTION: Fluoroscopic-guided transbronchial lung biopsy (FG-TBLB) is routinely performed via bronchoscopy to diagnose focal peripheral lesions and diffuse lung disease. Identifying the risk factors of FG-TBLB-related pneumothorax can assist the operator in taking pre-emptive measures to prepare for this potential complication.
MATERIALS AND METHODS: We retrospectively analysed data from 157 patients who underwent FG-TBLB, with the primary outcome being procedure-related pneumothorax. We assessed several risk factors for pneumothorax following FG-TBLB: patient characteristics, location of biopsy, number of biopsies and computed tomography pattern. Univariate and multivariate logistic regression analyses were performed.
RESULTS: One-hundred fifty-seven patients were included [mean (SD) age 57.9 (16.2) years; 60.5% male]. The most common location for FG-TBLB was the right upper lobe (n=45, 28.7%). The mean (SD) number of biopsy samples was 6.7 (2.1). Radiographic evidence of pneumothorax was reported in 12 (7.6%) patients, with 11 of those requiring intercostal chest tube intervention (mean air leak time: 5.7 days and 1 had persistent air leak requiring autologous blood patch pleurodesis. None experienced pneumothorax recurrence. Female gender and upper lobe location of the biopsy were identified as predisposing factors for pneumothorax. In the multivariable analysis, upper lobe biopsies were associated with a higher risk of pneumothorax (OR 0.120; 95% CI 0.015-0.963; p = 0.046).
CONCLUSION: The overall rate of pneumothorax is low. We recognise the increased risk of pneumothorax associated with upper lobe biopsy. These findings suggest that clinicians should exercise caution when performing FGTBLB in this region and consider alternative biopsy locations whenever feasible. We suggest adequate planning and preparation should be implemented to minimise the risk of pneumothorax following FG-TBLB.
Lung computed tomography patterns of a cluster of asymptomatic young males with COVID-19 admitted to a teaching hospital in Kuala Lumpur

Ng BH, Nuratiqah NA, Andrea YLB, Faisal AH, Soo CI, Najma K, et al.

Med J Malaysia, 2020 07;75(4):368-371.
PMID: 32723996

BACKGROUND AND OBJECTIVE: Coronavirus Disease 2019 (COVID- 19) was first reported in Malaysia in March 2020. We describe here the clinical characteristics and computed tomography (CT) patterns in asymptomatic young patients who had laboratory-confirmed COVID-19.
METHODS: This is a retrospective observational study where 25 male in-patients with laboratory-confirmed COVID-19 in Hospital Canselor Tuanku Muhriz. Demographics, clinical data and CT images of these patients were reviewed by 2 senior radiologists.
RESULTS: In total there were 25 patients (all males; mean age [±SD], 21.64±2.40 years; range, 18-27 years). Patients with abnormal chest CT showed a relatively low normal absolute lymphocytes count (median: 2.2 x 109/L) and absolute monocyte count (median: 0.5 x 109/L). Lactate dehydrogenase was elevated in 5 (20%) of the patients. The procalcitonin level was normal while elevated levels of alanine aminotransferase, total bilirubin, platelet and C-reactive protein were common. Baseline chest CT showed abnormalities in 6 patients. The distribution of the lesions were; upper lobe 3 (12%) lower lobe 3 (12%) with peripheral distribution 4 (16%). Of the 25 patients included, 4 (16%) had ground glass opacification (GGO), 1 (4%) had a small peripheral subpleural nodule, and 1 (4%) had a dense solitary granuloma. Four patients had typical CT features of COVID-19.
CONCLUSION: We found that the CT imaging showed peripheral GGO in our patients. They remained clinically stable with no deterioration of their respiratory symptoms suggesting stability in lung involvement. We postulate that rapid changes in CT imaging may not be present in young, asymptomatic, non-smoking COVID-19 patients. Thus the use of CT thoraxfor early diagnosis may be reserved for patients in the older agegroups, and not in younger patients.