2.A Case of Measles Pneumonia Complicated by Subcutaneous Emphysema and Pneumomediastinum in an 18-year-old Patient.
Jae Hyeong PARK ; Yun Jung LEE ; Ho Hyung KANG ; Sun Jong KIM ; Y S KOH ; C M LIM
Tuberculosis and Respiratory Diseases 2001;51(3):275-280
A 18 year-old man presented with dyspnea and a swelling of the neck. On physical examination, maculopapular rashes were noted on the face and the whole body and crepitus was noted at the thorax and upper arms. His chest X-ray showed bilateral interstitial infiltrates of the lung, pneumomediastinum and subcutaneous emphysema. On serologic examination, measles IgM was positive. Under the diagnosis of measles pneumonia, the patient was treated with oral ribavirin, which resulted in a complete resolution of the pneumomediastinum, subcutaneous emphysema, pneumonic infiltrate, and subjective symptoms of dyspnea and swelling of the neck in 7 days. Here we report this case with a brief review of the relevant literature.
Adolescent*
;
Arm
;
Diagnosis
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Dyspnea
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Exanthema
;
Humans
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Immunoglobulin M
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Lung
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Measles*
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Mediastinal Emphysema*
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Neck
;
Physical Examination
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Pneumonia*
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Ribavirin
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Subcutaneous Emphysema*
;
Thorax
3.Cutaneous sarcoidosis.
Ruifeng JI ; Mariko S Y KOH ; Louis B IRVING
Annals of the Academy of Medicine, Singapore 2007;36(12):1044-1057
4.Post community hospital discharge rehabilitation attendance: Self-perceived barriers and participation over time.
Abel W L CHEN ; Yan Tong KOH ; Sean W M LEONG ; Louisa W Y NG ; Patricia S Y LEE ; Gerald C H KOH
Annals of the Academy of Medicine, Singapore 2014;43(3):136-144
INTRODUCTIONThis study aimed to examine the attendance rates of post-discharge supervised rehabilitation as recommended by the multidisciplinary team at discharge among subacutely disabled adults and the barriers preventing adherence.
MATERIALS AND METHODSPatients were from a community hospital, aged 40 years or older. They had been assessed by a multidisciplinary team to benefit from rehabilitation after discharge, were mentally competent and communicative. We used a sequential qualitative-quantitative mixed methods study design. In the initial qualitative phase, we studied the patient-perceived barriers to adherence to rehabilitation using semi-structured interviews. Emerging themes were then analysed and used to develop a questionnaire to measure the extent of these barriers. In the subsequent quantitative phase, the questionnaire was used with telephone follow-up at 3, 6, 9 and 12 months after discharge.
RESULTSQualitative phase interviews (n = 41) revealed specific perceived financial, social, physical and health barriers. At the start of the quantitative phase (n = 70), 87.1% of the patients viewed rehabilitation as beneficial, but overall longitudinal attendance rate fell from 100% as inpatient to 20.3% at 3 months, 9.8% at 6 months, 6.3% at 9 months and 4.3% at 12 months. The prevalence of physical and social barriers were high initially but decreased with time. In contrast, the prevalence of financial and perceptual barriers increased with time.
CONCLUSIONAttendance of post-hospitalisation rehabilitation in Singapore is low. Self-perceived barriers to post-discharge rehabilitation attendance were functional, social, financial and perceptual, and their prevalence varied with time.
Adult ; Aged ; Aged, 80 and over ; Female ; Health Services Accessibility ; Hospitals, Community ; Humans ; Male ; Middle Aged ; Patient Compliance ; Patient Discharge ; Qualitative Research ; Rehabilitation ; Self Concept ; Surveys and Questionnaires ; Time Factors
6.Antibiotic resistance in gram-negative bacilli: a Singapore perspective.
Thean Yen TAN ; Li Yang HSU ; Tse Hsien KOH ; Lily S Y NG ; Nancy W S TEE ; Prabha KRISHNAN ; Raymond T P LIN ; Roland JUREEN
Annals of the Academy of Medicine, Singapore 2008;37(10):819-825
INTRODUCTIONAntibiotic resistance in gram-negative bacilli is an area of increasing importance. This prospective study was performed to survey antibiotic resistance in Escherichia coli (E. coli), Klebsiella spp., Pseudomonas aeruginosa and Acinetobacter spp. over a 1-year period.
MATERIALS AND METHODSNon-duplicate isolates of E. coli, Klebsiella spp., P. aeruginosa and Acinetobacter spp. were collected from participating Singapore hospitals during defined collection periods in 2006 and 2007. Confirmatory identification and antibiotic susceptibility testing were performed at Changi General Hospital. Minimum inhibitory concentrations (MIC) to a defined panel of antibiotics were determined using microbroth dilution methods. The presence of extended-spectrum beta lactamases and AmpC beta-lactamases in Enterobacteriaceae was determined by phenotypic methods, and susceptibility results were defined using current breakpoints from the Clinical Laboratory Standards Institute (CLSI).
RESULTSSeven hundred and forty-six gram-negative bacilli were received for testing. Resistance to extended-spectrum cephalosporins was present in a third of Enterobacteriaceae isolates, and extended-spectrum beta-lactamases (ESBL) carriage was present in 19.6% and 30.1% of E. coli and Klebsiella pneumoniae, respectively. AmpC enzymes were also detected in 8.5% and 5.6% of E. coli and K. pneumoniae isolates respectively. All Enterobacteriaceae were susceptible to imipenem and meropenem. The most active antibiotics against P. aeruginosa were amikacin, meropenem and piperacillin-tazobactam. A third of P. aeruginosa showed reduced susceptibility to polymyxin B. Carbapenem resistance was significantly higher in Acinetobacter baumannii (70.5%) than in other Acinetobacter species (25.0%). The most active antibiotic against A. baumannii was polymyxin B.
CONCLUSIONAntibiotic resistance is prevalent in gram-negative bacilli isolated from Singapore hospitals. The MIC testing surveillance programme complemented susceptibility data from wider laboratory-based surveillance, and has revealed emerging mechanisms of antibiotic resistance.
Acinetobacter Infections ; drug therapy ; Acinetobacter baumannii ; drug effects ; isolation & purification ; Anti-Bacterial Agents ; pharmacology ; therapeutic use ; Bacterial Proteins ; Drug Resistance, Bacterial ; Escherichia coli ; drug effects ; enzymology ; Hospitals ; Humans ; Klebsiella Infections ; drug therapy ; Klebsiella pneumoniae ; drug effects ; enzymology ; Microbial Sensitivity Tests ; Prospective Studies ; Pseudomonas aeruginosa ; drug effects ; isolation & purification ; Singapore ; beta-Lactamases
7.Merits of a harmonised system to classify drug-related problems in Singapore.
Tat Ming NG ; Wee Chuan HING ; Tsing Yi KOH ; Wei Terk CHANG ; Grace S W CHANG ; Jian Wei HENG ; Isnarti Bte ABUAMAN ; Beng Yi SIA ; Yik Chuen SAW ; Daphne CHAN ; Chwee Huat TAN ; Wei Shan FAN ; Franky FRANKY ; Poh Ching TAN ; Cheryl W Y TAN ; Joanne H L SNG ; Chun Wei YAP ; Shanti Uma Devi GNANAMANI ; Doreen S Y TAN
Annals of the Academy of Medicine, Singapore 2021;50(7):572-577
8.Wash-out of hepatocellular carcinoma: quantitative region of interest analysis on CT.
Cher Heng TAN ; Choon Hua THNG ; Albert S C LOW ; Veronique K M TAN ; Septian HARTONO ; Tong San KOH ; Brian K P GOH ; Peng Chung CHEOW ; Yu Meng TAN ; Alexander Y F CHUNG ; London L OOI ; Arul EARNEST ; Pierce K H CHOW
Annals of the Academy of Medicine, Singapore 2011;40(6):269-275
INTRODUCTIONThis study aims to determine if the quantitative method of region-of-interest (ROI) analysis of lesion attenuation on CT may be a useful adjunct to the conventional approach of diagnosis by visual assessment in assessing tracer wash-out in hepatocellular carcinomas.
MATERIALS AND METHODSFrom a surgical database of 289 patients from 2 institutions, all patients with complete surgical, pathological and preoperative multiphasic CT scans available for review were selected. For each phase of scanning, HU readings of lesion obtained (Lesion(arterial), Lesion(PV) and Lesion(equilibrium)) were analysed using receiver operating curves (ROC) to determine the optimal method and cut-off value for quantitative assessment of tumour wash-out (Lesion(arterial - equilibrium), Lesion(PV - equilibrium) or Lesion(peak - equilibrium)).
RESULTSNinety-four patients with one lesion each met the inclusion criteria. The area under the curve (AUC) values for Lesion(arterial - equilibrium) (0.941) was higher than the AUC for Lesion(pv - equilibrium) (0.484) and for Lesion(peak - equilibrium) (0.667). Based on ROC analysis, a cut-off of 10HU value for Lesion(arterial - equilibrium) would yield sensitivity and specificity of 91.5% and 80.9%, respectively. ROI analysis detected 9/21 (42.9%) of lesions missed by visual analysis. Combined ROI and visual analysis yields a sensitivity of 82/94 (87.2%) compared to 73/94 (77.7%) for visual analysis alone.
CONCLUSIONUsing a cut-off of 10 HU attenuation difference between the arterial and equilibrium phases is a simple and objective method that can be included as an adjunct to visual assessment to improve sensitivity for determining lesion wash-out on CT.
Adult ; Aged ; Aged, 80 and over ; Carcinoma, Hepatocellular ; diagnosis ; pathology ; surgery ; Confidence Intervals ; Databases, Factual ; Female ; Humans ; Liver ; pathology ; Liver Neoplasms ; diagnosis ; pathology ; surgery ; Male ; Middle Aged ; Preoperative Period ; ROC Curve ; Retrospective Studies ; Sensitivity and Specificity ; Tomography, X-Ray Computed ; instrumentation ; Young Adult
9.BNT162B2 COVID-19 mRNA vaccination did not promote substantial anti-syncytin-1 antibody production nor mRNA transfer to breast milk in an exploratory pilot study.
Citra N Z MATTAR ; Winston KOH ; Yiqi SEOW ; Shawn HOON ; Aparna VENKATESH ; Pradip DASHRAATH ; Li Min LIM ; Judith ONG ; Rachel LEE ; Nuryanti JOHANA ; Julie S L YEO ; David CHONG ; Lay Kok TAN ; Jerry K Y CHAN ; Mahesh CHOOLANI ; Paul Anantharajah TAMBYAH
Annals of the Academy of Medicine, Singapore 2022;51(5):309-312
10.Pregnancy Outcomes in COVID-19: A Prospective Cohort Study in Singapore.
Citra Nz MATTAR ; Shirin KALIMUDDIN ; Sapna P SADARANGANI ; Shephali TAGORE ; Serene THAIN ; Koh Cheng THOON ; Eliane Y HONG ; Abhiram KANNEGANTI ; Chee Wai KU ; Grace Mf CHAN ; Kelvin Zx LEE ; Jeannie Jy YAP ; Shaun S TAN ; Benedict YAN ; Barnaby E YOUNG ; David C LYE ; Danielle E ANDERSON ; Liying YANG ; Lin Lin SU ; Jyoti SOMANI ; Lay Kok TAN ; Mahesh A CHOOLANI ; Jerry Ky CHAN
Annals of the Academy of Medicine, Singapore 2020;49(11):857-869
INTRODUCTION:
Pregnant women are reported to be at increased risk of severe coronavirus disease 2019 (COVID-19) due to underlying immunosuppression during pregnancy. However, the clinical course of COVID-19 in pregnancy and risk of vertical and horizontal transmission remain relatively unknown. We aim to describe and evaluate outcomes in pregnant women with COVID-19 in Singapore.
METHODS:
Prospective observational study of 16 pregnant patients admitted for COVID-19 to 4 tertiary hospitals in Singapore. Outcomes included severe disease, pregnancy loss, and vertical and horizontal transmission.
RESULTS:
Of the 16 patients, 37.5%, 43.8% and 18.7% were infected in the first, second and third trimesters, respectively. Two gravidas aged ≥35 years (12.5%) developed severe pneumonia; one patient (body mass index 32.9kg/m2) required transfer to intensive care. The median duration of acute infection was 19 days; one patient remained reverse transcription polymerase chain reaction (RT-PCR) positive >11 weeks from diagnosis. There were no maternal mortalities. Five pregnancies produced term live-births while 2 spontaneous miscarriages occurred at 11 and 23 weeks. RT-PCR of breast milk and maternal and neonatal samples taken at birth were negative; placenta and cord histology showed non-specific inflammation; and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-specific immunoglobulins were elevated in paired maternal and umbilical cord blood (n=5).
CONCLUSION
The majority of COVID-19 infected pregnant women had mild disease and only 2 women with risk factors (obesity, older age) had severe infection; this represents a slightly higher incidence than observed in age-matched non-pregnant women. Among the women who delivered, there was no definitive evidence of mother-to-child transmission via breast milk or placenta.
Abortion, Spontaneous/epidemiology*
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Adult
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COVID-19/transmission*
;
COVID-19 Nucleic Acid Testing
;
COVID-19 Serological Testing
;
Cohort Studies
;
Disease Transmission, Infectious/statistics & numerical data*
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Female
;
Fetal Blood/immunology*
;
Humans
;
Infectious Disease Transmission, Vertical/statistics & numerical data*
;
Live Birth/epidemiology*
;
Maternal Age
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Milk, Human/virology*
;
Obesity, Maternal/epidemiology*
;
Placenta/pathology*
;
Pregnancy
;
Pregnancy Complications, Infectious/physiopathology*
;
Pregnancy Outcome/epidemiology*
;
Pregnancy Trimester, First
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Pregnancy Trimester, Second
;
Prospective Studies
;
RNA, Viral/analysis*
;
Risk Factors
;
SARS-CoV-2
;
Severity of Illness Index
;
Singapore/epidemiology*
;
Umbilical Cord/pathology*
;
Young Adult