1.Positive RT-PCR detected in patients recovered from COVID-19.
Glorijoy Shi En TAN ; Ying DING ; Lin CUI ; Tze Minn MAK ; Chee Keng MOK ; Asok KURUP ; Purnima PARTHASARATHY ; Wan Ni CHIA ; Lin Fa WANG ; Raymond T P LIN ; Yee Sin LEO ; Shawn VASOO
Annals of the Academy of Medicine, Singapore 2021;50(2):191-194
2.Obesity rather than Metabolic Syndrome is a Risk Factor for Subclinical Hypothyroidism and Thyroid Autoimmunity.
Jin Yin YAO ; Peng LIU ; Wei ZHANG ; Ke Wei WANG ; Chun Peng LYU ; Zhi Wei ZHANG ; Xiang Lan CHEN ; Yi CHEN ; Xue Song WANG ; Yong Xia DING ; Li Jun MA ; Jing WANG ; Dian Jun SUN
Biomedical and Environmental Sciences 2021;34(10):819-823
3.Thoracic splenosis: Case report of a symptomatic case.
Florent LE BARS ; Rémy PASCOT ; Charles RICORDEL ; Hervé CORBINEAU ; Jean Philippe VERHOYE ; Bertrand RICHARD DE LATOUR ; Simon ROUZÉ
Chinese Journal of Traumatology 2020;23(3):185-186
Thoracic splenosis is the autotransplantation of splenic tissue in the left thoracic cavity as a result of a splenic injury. This rare pathology is usually asymptomatic and may be discovered on incidental imaging, but the diagnosis often requires invasive procedures such as surgery in order to eliminate a neoplasic origin. We report a rare symptomatic case of a 39-year-old man presenting with chest pain and multiple nodules revealed on a computed tomography scan. The patient underwent a surgical exploration and the pathological studies concluded to a thoracic splenosis. Indeed, the previous medical history of the patient revealed a left thoraco-abdominal traumatism during childhood. The aim of this paper is to emphasize that the diagnosis can now be performed using only imaging techniques such as technetium-99 sulfur colloid or labelled heat-denatured red blood cell scintigraphy to avoid unnecessary invasive procedures including thoracotomy.
Abdominal Injuries
;
complications
;
Adult
;
Asymptomatic Diseases
;
Humans
;
Male
;
Spleen
;
injuries
;
Splenectomy
;
Splenosis
;
diagnosis
;
etiology
;
pathology
;
surgery
;
Thoracic Diseases
;
diagnosis
;
etiology
;
pathology
;
surgery
;
Thoracic Injuries
;
complications
;
Thoracotomy
;
Unnecessary Procedures
4.Follow-up testing of viral nucleic acid in discharged patients with moderate type of 2019 coronavirus disease (COVID-19).
Youjiang LI ; Yingying HU ; Xiaodong ZHANG ; Yuanyuan YU ; Bin LI ; Jianguo WU ; Yingping WU ; Xiaoping XIA ; Jian XU
Journal of Zhejiang University. Medical sciences 2020;49(1):270-274
OBJECTIVE:
To investigate the clinical outcome of patients with moderate type of corona virus disease 2019 (COVID-19) after discharge by retesting viral nucleic acid.
METHODS:
Seven patients with moderate COVID-19 met the discharge criteria enacted by National Health Commission were quarantine in hospital for 7 days, then continuously quarantined at home for 4 weeks after discharged. During the three weeks of quarantined period, the symptoms and signs were documented; and sputum or nasal swab and feces samples were collected to test SARS-COV-2 nucleic acid by RT-PCR method.
RESULTS:
There were no symptoms and signs during the quarantine period in all 7 patients. However, respiratory swabs from 3 patients were confirmed positive of SARS-COV-2 nucleic acid at 5 to 7 days after they met the discharge criteria.
CONCLUSIONS
The study indicates that there is a relatively high incidence of positive viral nucleic acid in patients met the discharge criteria, and it is suggested that patients met the current discharge criteria should be quarantined in hospital for another 7 days and the follow-up viral testing is necessary.
Asymptomatic Diseases
;
Betacoronavirus
;
genetics
;
China
;
Clinical Laboratory Techniques
;
Coronavirus Infections
;
diagnosis
;
virology
;
Follow-Up Studies
;
Humans
;
Pandemics
;
Patient Discharge
;
standards
;
Pneumonia, Viral
;
diagnosis
;
virology
;
Quarantine
;
Reverse Transcriptase Polymerase Chain Reaction
;
Time Factors
5.An update on the epidemiological characteristics of novel coronavirus pneumonia (COVID-19).
Chinese Journal of Epidemiology 2020;41(2):139-144
Through literature review and group discussion, Special Expert Group for Control of the Epidemic of Novel Coronavirus Pneumonia of the Chinese Preventive Medicine Association formulated an update on the epidemiological characteristics of novel coronavirus pneumonia (NCP). The initial source of the 2019 novel coronavirus (2019-nCoV) was the Huanan seafood market in Wuhan, Hubei province, China, with pangolins as a potential animal host. Currently the main source of infection is NCP patients, and asymptomatic carriers may also be infectious. The virus is believed transmitted mostly via droplets or contact. People are all generally susceptible to the virus. The average incubation period was 5.2 days, and the basic reproductive number R(0) was 2.2 at the onset of the outbreak. Most NCP patients were clinically mild cases. The case fatality rate was 2.38%, and elderly men with underlying diseases were at a higher risk of death. Strategies for prevention and control of NCP include improving epidemic surveillance, quarantining the source of infection, speeding up the diagnosis of suspected cases, optimizing the management of close contacts, tightening prevention and control of cluster outbreaks and hospital infection, preventing possible rebound of the epidemic after people return to work from the Chinese Spring Festival holiday, and strengthening community prevention and control.
Aged
;
Animals
;
Asymptomatic Diseases/epidemiology*
;
Betacoronavirus
;
COVID-19
;
China/epidemiology*
;
Contact Tracing
;
Coronavirus
;
Coronavirus Infections/epidemiology*
;
Humans
;
Infectious Disease Incubation Period
;
Male
;
Pandemics
;
Pneumonia, Viral/epidemiology*
;
Public Health Surveillance/methods*
;
Quarantine
;
SARS-CoV-2
6.The epidemiological characteristics of an outbreak of 2019 novel coronavirus diseases (COVID-19) in China.
Chinese Journal of Epidemiology 2020;41(2):145-151
Objective: An outbreak of 2019 novel coronavirus diseases (COVID-19) in Wuhan, China has spread quickly nationwide. Here, we report results of a descriptive, exploratory analysis of all cases diagnosed as of February 11, 2020. Methods: All COVID-19 cases reported through February 11, 2020 were extracted from China's Infectious Disease Information System. Analyses included: 1) summary of patient characteristics; 2) examination of age distributions and sex ratios; 3) calculation of case fatality and mortality rates; 4) geo-temporal analysis of viral spread; 5) epidemiological curve construction; and 6) subgroup analysis. Results: A total of 72 314 patient records-44 672 (61.8%) confirmed cases, 16 186 (22.4%) suspected cases, 10567 (14.6%) clinical diagnosed cases (Hubei only), and 889 asymptomatic cases (1.2%)-contributed data for the analysis. Among confirmed cases, most were aged 30-79 years (86.6%), diagnosed in Hubei (74.7%), and considered mild/mild pneumonia (80.9%). A total of 1 023 deaths occurred among confirmed cases for an overall case-fatality rate of 2.3%. The COVID-19 spread outward from Hubei sometime after December 2019 and by February 11, 2020, 1 386 counties across all 31 provinces were affected. The epidemic curve of onset of symptoms peaked in January 23-26, then began to decline leading up to February 11. A total of 1 716 health workers have become infected and 5 have died (0.3%). Conclusions: The COVID-19 epidemic has spread very quickly. It only took 30 days to expand from Hubei to the rest of Mainland China. With many people returning from a long holiday, China needs to prepare for the possible rebound of the epidemic.
Adult
;
Aged
;
Asymptomatic Diseases/epidemiology*
;
Betacoronavirus
;
COVID-19
;
China/epidemiology*
;
Coronavirus
;
Coronavirus Infections/mortality*
;
Disease Outbreaks
;
Humans
;
Middle Aged
;
Mortality/trends*
;
Pandemics
;
Pneumonia, Viral/mortality*
;
SARS-CoV-2
7.Predictors of Severe or Moderate Coronary Artery Disease in Asymptomatic Individuals with Extremely Low Coronary Calcium Scores
Hyung Bok PARK ; Hyeonju JEONG ; Ji Hyun LEE ; Yongsung SUH ; Eui Seock HWANG ; Yun Hyeong CHO ; Deok Kyu CHO
Yonsei Medical Journal 2019;60(7):619-625
PURPOSE: To evaluate predictors of severe or moderate coronary artery disease (CAD) in individuals with zero or very low (<10) coronary artery calcium (CAC) scores. MATERIALS AND METHODS: The 1175 asymptomatic persons with zero or very low (<10) CAC scores were analyzed for CAD stenosis using coronary computed tomography angiography. Moderate and severe CADs were defined as having more than 50% and more than 70% stenosis in any of the major coronary arteries, respectively. Age, gender, body mass index, hypertension, type II diabetes, dyslipidemia, lipid profile, creatinine, and smoking status were evaluated as predictors for moderate and severe CAD. RESULTS: In the study population, moderate and severe CADs were found in 7.5% and 3.3%, respectively. Among evaluated risk factors, age [odds ratio (OR) 1.04, 95% confidence interval (CI) 1.02−1.07, p<0.001], current smoking status (OR 3.12, 95% CI 1.82−5.34, p<0.001), and CAC 1−9 (OR 1.80, 95% CI 1.08−3.00, p=0.024) were significantly associated with moderate CAD. Meanwhile, age (OR 1.05, 95% CI 1.02−1.08, p=0.003), low high density lipoprotein (HDL) (OR 0.96, 95% CI 0.93−0.99, p=0.003), and current smoking status (OR 2.34, 95% CI 1.14−5.30, p=0.022) were found to be significantly associated with severe CAD. Improvement of discrimination power for predicting severe CAD was observed when smoking and HDL cholesterol were serially added into the age model. CONCLUSION: Smoking showed significant correlations with moderate or severe CAD, and low HDL cholesterol also proved to be a predictor of severe CAD in asymptomatic individuals with extremely low CAC scores.
Angiography
;
Asymptomatic Diseases
;
Body Mass Index
;
Calcium
;
Cholesterol, HDL
;
Constriction, Pathologic
;
Coronary Artery Disease
;
Coronary Vessels
;
Creatinine
;
Discrimination (Psychology)
;
Dyslipidemias
;
Humans
;
Hypertension
;
Lipoproteins
;
Risk Factors
;
Smoke
;
Smoking
8.Specific Serum Immunoglobulin G (IgG) Levels Against Antigens Implicated in Hypersensitivity Pneumonitis in Asymptomatic Individuals.
Yi Hern TAN ; Cecilia Cl NGAN ; Shan Wei HUANG ; Chian Min LOO ; Su Ying LOW
Annals of the Academy of Medicine, Singapore 2019;48(1):36-38
Adult
;
Alternaria
;
immunology
;
Alveolitis, Extrinsic Allergic
;
immunology
;
Animals
;
Antibodies
;
immunology
;
Antibodies, Bacterial
;
immunology
;
Antibodies, Fungal
;
immunology
;
Antigens
;
immunology
;
Antigens, Bacterial
;
immunology
;
Antigens, Fungal
;
immunology
;
Aspergillus fumigatus
;
immunology
;
Asymptomatic Diseases
;
Candida albicans
;
immunology
;
Cladosporium
;
immunology
;
Columbidae
;
immunology
;
Female
;
Healthy Volunteers
;
Humans
;
Immunoglobulin G
;
immunology
;
Male
;
Melopsittacus
;
immunology
;
Middle Aged
;
Mucor
;
immunology
;
Nocardia
;
immunology
;
Parrots
;
immunology
;
Penicillium chrysogenum
;
immunology
;
Stachybotrys
;
immunology
;
Thermoactinomyces
;
immunology
9.Diagnosis of Peripheral Artery Disease: Focus on the 2016 American Heart Association/American College of Cardiology and 2017 European Society of Cardiology Guidelines
Journal of Korean Diabetes 2019;20(1):17-23
Peripheral artery disease (PAD) is the most frequent cause of reduced perfusion in peripheral arteries. Patients with PAD often have manifestations of atherosclerosis of the lower limb, although both symptomatic and asymptomatic disease is common. The clinical signs of PAD can differ in diabetic and non-diabetic patients. Diabetic patients are at high risk for PAD characterized by symptoms of intermittent claudication or critical limb ischemia. However, the majority of PAD patients are clinically asymptomatic. In addition to history taking, physical examinations including inspection of the skin, palpation of leg and foot pulses, and determination of the ankle-brachial index (ABI) are considered for diagnosis of PAD. The ABI measurement is the easiest and most common investigative technique for PAD. For hemodynamic assessment, additional diagnostic modalities could be considered.
Ankle Brachial Index
;
Arteries
;
Asymptomatic Diseases
;
Atherosclerosis
;
Cardiology
;
Diabetes Mellitus
;
Diagnosis
;
Extremities
;
Foot
;
Heart
;
Hemodynamics
;
Humans
;
Intermittent Claudication
;
Investigative Techniques
;
Ischemia
;
Leg
;
Lower Extremity
;
Palpation
;
Perfusion
;
Peripheral Arterial Disease
;
Physical Examination
;
Skin
10.Radiation Therapy Outcome and Clinical Features of Duodenal-Type Follicular Lymphoma
Hansang LEE ; Dongryul OH ; Kyungmi YANG ; Young Hyeh KO ; Yong Chan AHN ; Won Seog KIM ; Seok Jin KIM
Cancer Research and Treatment 2019;51(2):547-555
PURPOSE: Duodenal-type follicular lymphoma (FL) is a rare variant of FL. There is still no consensus on the initial treatment, and clinical features including endoscopic findings are not familiar to most physicians. The objective of this study was to evaluate the outcome of patients who were initially treated with radiation therapy for duodenal-type FL. MATERIALS AND METHODS: We retrospectively analyzed 20 patients who were consecutively diagnosed with duodenal-type FL between 2008 and 2017. All patients received radiation therapywith curative intent. RESULTS: The median age of the patients was 52 years (range, 26 to 66 years), and females were predominant. Most patients (n=18, 90%) had stage I disease, and were diagnosed by a regular health examination in an asymptomatic state. The histological grade was one in 19 patients (95%), and the endoscopic findings were diffuse nodular (n=8), whitish granular (n=8), and mixed pattern (n=4). Radiation therapy was delivered to 17 patients with 24 Gy in 12 fractions, and to three patients with 30.6-36 Gy in 18 fractions. All patients were evaluated with endoscopy for response to radiation therapy, and complete response was achieved in 19 patients (95%). At the time of analysis, all patients survived without any evidence of late toxicities related with radiation therapy. CONCLUSION: Taken together, radiation therapy alone could be effective in controlling duodenal lesion. A further study with longer follow-up duration is warranted to confirm our findings.
Asymptomatic Diseases
;
Consensus
;
Duodenum
;
Endoscopy
;
Female
;
Follow-Up Studies
;
Humans
;
Lymphoma, Follicular
;
Retrospective Studies

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