1.A patient who refused medical advice: The doctor and the patient should look for a common ground.
Malaysian Family Physician 2007;2(3):110-113
Treatment refusal is a common encounter in clinical practice. The process of deciding to refuse treatment is often complex. It is our responsibility to try and understand this process of decision making and the underlying reasons for treatment refusal. Many of these reasons are often rational in the context where the decision is made. The patients could be making the best decision for themselves even if these decisions are not necessarily the best in our mind. We should at all times discuss our treatment options and assess their ability to make decisions in achieving common goals. These goals should balance our best treatment strategies and the patients’ best interest. This article discusses the reasons underlying treatment refusal and how we can achieve a common goal with our patients.
Patients
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decision
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Treatment Refusal
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therapeutic aspects
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treatment options
2.Stress and Coping Strategies Among Retired People In Malaysia: A Qualitative Study
Redhwan Ahmed Al-Naggar ; Robert Chen
ASEAN Journal of Psychiatry 2011;12(2):1-5
Objective: This study explored the stress and coping strategies among retired people in Malaysia. Methods: In-depth interviews were conducted with 36 elderly Malaysian subjects. This protocol was approved by the Ethics Committee of the Management and Science University. The data obtained were sorted into various categories. Results: A total number of 36 retired elderly people participated in this study. The majority of them were in the age group of 55-59 years old, females, Malay and married. The majority defined stress as pressure or tension. Financial difficulties, family and work problems were the main causes of stress in the majority. Also, the majority of respondents mentioned that they coped with stress by sharing problems with others, by resting and relaxing, and/or by doing housework during their free time. A few of them coped with stress by hanging out with friends, going shopping, doing photography, travelling, going fishing, and doing sports. Conclusion: Financial difficulties, family and work problems were the main causes of stress among elderly people. They coped with stress by sharing problems with others, resting and relaxing, and/or doing housework during their free time.
3.Constitutional mosaic trisomy 21 and azoospermia: a case report
Guohui LU ; Janice G.EDWARDS ; Gail WHITMANELIA ; Tianjian CHEN ; Ed AMBRUZS ; Robert G.BEST
Journal of Peking University(Health Sciences) 2005;37(1):94-95
SUMMARY Constitutional full trisomy 21 is a common disorder in which abnormal spermatogenesis has been previously described. However, constitutional mosaic trisomy 21 in an otherwise normal but infertile male has not been explored. We report a case with low level mosaic trisomy 21 in a non-syndrome but azoospermic patient. We also propose that the patient's azoospermia may be related to the constitutional mosaic trisomy 21 and thus resulting in a late onset of testicular failure.
4.Biochemical Changes of Plasma in Paratroops after Parachuting:A Preliminary Investigation
Tangchun WU ; Yili XIONG ; Sheng CHEN ; Shuntang LENG ; Tao HAI ; M.tanguay ROBERT
Space Medicine & Medical Engineering 1999;12(4):235-239
Objective To study whether physiological and psychological stresses during parachuting jumps may result in biochemical changes of plasma in parachutists. Method Differences in the levels of hormones (cortisol, growth hormone, insulin, pancreatic glucagon, endothelin, angiotonin I and II, aldosterone), activities of enzymes (superoxide dismutase, glutathione peroxidase, glutathione S transferase), levels of the free radical damage indicator malondialdehyde (MDA), tumor necrosis factor alpha (TNF-α), and the main heat stress protein, HSP70,in the plasma and serum were investigated in control (non-parachuting) and parachuting paratroops. Result Significantly higher levels of serum hormones such as growth hormone, insulin, angiotonin I, renin activities, as well as MDA and plasma TNF-α and HSP70 were observed in the parachuting group. Conclusion Whether these changes can potentially serve as useful biomarkers to assess possible abnormal stress in parachutists and to evaluate the health condition and to select parachutists remains to be further studied.
5.New evidence-based adaptive clinical trial methods for optimally integrating predictive biomarkers into oncology clinical development programs.
Chinese Journal of Cancer 2013;32(5):233-241
Predictive biomarkers are important to the future of oncology; they can be used to identify patient populations who will benefit from therapy, increase the value of cancer medicines, and decrease the size and cost of clinical trials while increasing their chance of success. But predictive biomarkers do not always work. When unsuccessful, they add cost, complexity, and time to drug development. This perspective describes phases 2 and 3 development methods that efficiently and adaptively check the ability of a biomarker to predict clinical outcomes. In the end, the biomarker is emphasized to the extent that it can actually predict.
Biomarkers, Tumor
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genetics
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metabolism
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Clinical Trials as Topic
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methods
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Decision Support Techniques
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Evidence-Based Medicine
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Humans
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Neoplasms
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diagnosis
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genetics
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metabolism
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Predictive Value of Tests
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Program Development
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methods
6.Principles of Electrophysiological Assessments for Movement Disorders
Kai-Hsiang Stanley CHEN ; Robert CHEN
Journal of Movement Disorders 2020;13(1):27-38
Electrophysiological studies can provide objective and quantifiable assessments of movement disorders. They are useful in the diagnosis of hyperkinetic movement disorders, particularly tremors and myoclonus. The most commonly used measures are surface electromyography (sEMG), electroencephalography (EEG) and accelerometry. Frequency and coherence analyses of sEMG signals may reveal the nature of tremors and the source of the tremors. The effects of voluntary tapping, ballistic movements and weighting of the limbs can help to distinguish between organic and functional tremors. The presence of Bereitschafts-potentials and beta-band desynchronization recorded by EEG before movement onset provide strong evidence for functional movement disorders. EMG burst durations, distributions and muscle recruitment orders may identify and classify myoclonus to cortical, subcortical or spinal origins and help in the diagnosis of functional myoclonus. Organic and functional cervical dystonia can potentially be distinguished by EMG power spectral analysis. Several reflex circuits, such as the long latency reflex, blink reflex and startle reflex, can be elicited with different types of external stimuli and are useful in the assessment of myoclonus, excessive startle and stiff person syndrome. However, limitations of the tests should be recognized, and the results should be interpreted together with clinical observations.
7.NORTRIPTYLINE DELAYS DISEASE ONSET IN HUNTINGTON'S DISEASE MICE
Yingjun GUAN ; Li YU ; Hailing GAO ; Bingde YUE ; Li MA ; Yanchun CHEN ; Chunyan ZHAO ; Hongyan WANG ; M.friedlander ROBERT
Chinese Journal of Neuroanatomy 2006;22(4):379-383
Huntington's disease (HD) is an autosomal dominant neurodegenerative disease. A cardinal histopathologic feature of HD is the progressive loss of striatal medium spiny neurons. As there is no effective treatment for this fatal disease so far, we explore the therapeutic potential of nortriptyline to identify drugs that might be effective treatments for HD. N548mu [ 1955-128] huntingtin stable ST14A cell line was cultured and incubated in the presence or absence of serial concentrations of nortriptyline. Then R6/2 transgenic HD mice were treated with nortriptyline from five to twenty-one weeks of age. Nortriptyline protected striatal cells expressing mutant huntingtin when shifted to a nonpermissive temperature. Nortriptyline delay the disease onset to 127 d in R6/2 mice as compared with 102 d in saline-treated controls, but nortriptyline did not significantly delay mortality. As a gross marker of lack of systemic toxicity, there was no significant difference in the weight of the treated and control R6/2 mice. The results demonstrate that clinically reasonable doses of one of the identified drugs, nortriptyline, delays disease onset in a mouse model of the disease more than any previously identified compound. The most desirable features of a drug for HD are minimal toxicity and the ability to extend symptom-free living. Nortriptyline appears to be one such good candidate.
8.A better long-term outcome in cardiac transplant recipient with a history of previous open heart operations
Changzhi CHEN ; B.C Henry LOW ; Preissler L. PAUL ; Gallagher C. ROBERT ; Hammond A. JONATHAN ; Takata HIROSHI ; Schweizer T. ROBERT
Chinese Medical Journal 1998;111(3):231-234
Objective To investigate the effect of previous open heart operations (POHO) on the outcome of heart transplantation (HTX).Methods Between November 1984 and May 1996, HTX was performed on 151 patients at Hartford Hospital. Among them, 61 patients had previous open heart operations (POHO) (group A), and 90 did not (group B). The average follow-up period was 1615±1185 days for group A and 1330±1125 days for group B. The recipient age was 55±10 years for group A and 48±12 years for group B (P<0.01). There were 17 patients (26%) in group A and 14 (50%) in group B who were over 60 years of age. There was more coronary artery disease (74% versus 37%, P<0.001) as etiology, and more diabetics in group A (P<0.02). Results The time for cardiopulmonary bypass (133±20 min versus 106±18 min, P<0.01) and aortic clamp time (73±16 min versus 61±13 min, P<0.01) were longer in group A. The operative mortality (within 30 days) was 0 and 2.2%, and the cumulative deaths were 16 (26%) and 43 (48%) respectively for group A and group B (P<0.01). The causes of death were (group A vs group B): infection (31% vs 26%), rejection (13% vs 28%, P<0.05), malignancy (25% vs 16%), cardiac event (6% vs 14%) and others (25% vs 16%). In patients over 60, there were 4 deaths (24%) in group A and 7 (50%) in group B. The difference was not significant. No patients died of rejection in this subgroup. The actuarial survival rates in group A versus group B were: 1 year, 93% versus 83%; 2 years, 85% versus 74%; 3 years, 81% versus 71%; 5 years, 76% versus 58%; and 10 years, 57 % versus 24% (P<0.01).Conclusion The survival rate in patients who had POHO is much higher than that in patients who had HTX as their primary operation.
9.Evaluation of 3-day smoking cessation training course for doctors from 38 cities in China.
Chun-mei ZHANG ; Dan XIAO ; Robert WEST ; Susan MICHIE ; Ronald TROUGHTON ; Peter HAJEK ; Chen WANG
Chinese Medical Journal 2012;125(7):1338-1340
BACKGROUNDThe World Health Organization's "Framework Convention on Tobacco Control" came into effect in China in 2006. Since then, a series of tobacco control measures has been undertaken, including the first step to establish a coordinated network of stop-smoking clinics in Chinese hospitals. Training for stop-smoking specialists has been traditionally provided via printed materials. This study evaluated the outcomes of the first two intensive 3-day courses in smoking cessation in China run in collaboration with experts who provide training to UK Specialist Stop Smoking Service.
METHODSEighty-four doctors from 38 cities in China responsible for stop-smoking treatment in 20 provinces and four autonomous regions participated in the training courses. Participants' knowledge competencies and self-efficacy were assessed before and after the authentication training.
RESULTSThe training significantly improved participants' knowledge, skills and self-efficacy across different domains. Forty-eight participants were finally certified as "smoking cessation specialist".
CONCLUSIONSThe UK model of face-to-face training was acceptable and effective in China. A relatively brief intensive training program can generate significant improvements in skills, knowledge, and readiness to engage in smoking cessation activities.
Certification ; China ; Cities ; Humans ; Physicians ; Self Efficacy ; Smoking Cessation
10.Diagnosing ectopic pregnancy in the emergency setting.
Robert LEE ; Carolyn DUPUIS ; Byron CHEN ; Andrew SMITH ; Young H KIM
Ultrasonography 2018;37(1):78-87
Ectopic pregnancy is the implantation of a fertilized egg outside the uterine endometrial cavity. For women presenting to the emergency department with abdominal pain and/or vaginal bleeding, ectopic pregnancy is an important diagnostic consideration. The diagnosis is made based on laboratory values and ultrasound imaging findings. The ultrasound appearance of both normal early pregnancy and ectopic pregnancy are variable and often subtle, presenting diagnostic challenges for radiologists. This pictorial essay describes and illustrates the sonographic findings of ectopic pregnancy and reviews the differential diagnoses that can mimic ectopic pregnancy on ultrasound. With the possibility of medical management, the value of early detection and prompt initiation of treatment has increased in improving clinical outcomes and preventing the complications of ectopic pregnancy.
Abdominal Pain
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Diagnosis
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Diagnosis, Differential
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Emergencies*
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Emergency Service, Hospital
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Female
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Humans
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Methotrexate
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Pregnancy
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Pregnancy, Ectopic*
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Ultrasonography
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Uterine Hemorrhage
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Zygote