1.Transradial approach for coronary interventions
Tao HONG ; Tianhai KOH ; Chan CHARLES ; Al ET ;
Chinese Journal of Interventional Cardiology 1993;0(03):-
Objective To study the feasibility and safety of transradial approach for coronary interventions Methods Coronary intervention was tried to be performed via transradial approach in 116 patients with coronary heart disease (96 males, 20 females, mean age 57 44?9 40 years) Results Transradial puncture failed in 5 cases and coronary interventions were performed via transfemoral approach instead Coronary intervention failed in 2 cases although transradial puncture succeeded Both transradial puncture and coronary intervention succeeded in the rest 109 cases One hundred and thirty five narrowed coronary arteries were dilated (69 LAD, 26 LCX, 39 RCA, 1 venous graft) One hundred and forty eight coronary lesions, including 15 type A, 106 type B and 27 type C lesions were treated One hundred and ten stents were implanted in 105 coronary arteries of 98 patients Rotablator was performed in one case and intracoronary ultrasound detected for another Changing guiding catheter was necessary for 25 cases during the procedure Transfusion was needed due to puncture site bleeding in one case Big hematoma was found in two cases Perforation of a branch of brachial artery happened in another case No surgery repair needed Conclusion Coronary intervention via transradial approach was feasible, but the radial artery puncture was somewhat difficult, and guiding catheter support is poor to some extent One must be cautious about vascular damages near the puncture site
2.Coil embolisation of a septal artery in a patient with hypertrophic obstructive cardiomyopathy.
Singapore medical journal 2013;54(8):e172-5
Nonsurgical septal reduction by coil embolisation of the first major septal branch was successfully performed in a 34-year-old patient with hypertrophic obstructive cardiomyopathy, resulting in acute reduction of left ventricular outflow tract obstruction and symptomatic improvement. Follow-up at 18 months showed sustained clinical and echocardiographic benefits from the procedure. To the best of our knowledge, this is the first case reported in Singapore.
Adult
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Cardiomyopathy, Hypertrophic
;
therapy
;
Diagnostic Imaging
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Embolization, Therapeutic
;
methods
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Heart Septum
;
Humans
;
Male
3.Life threatening and occult mediastinal haemorrhage secondary to acquired factor VIII deficiency.
Chieh Suai TAN ; Kenneth P CHAN ; Charles T CHUAH ; Heng Joo NG ; Foong Koon CHEAH ; Felicia S TEO ; Philip C T ENG
Annals of the Academy of Medicine, Singapore 2009;38(3):280-281
Aged
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Female
;
Hemophilia A
;
complications
;
Hemorrhage
;
etiology
;
Humans
;
Mediastinal Diseases
;
etiology
4.Regulation of Diabetes: a Therapeutic Strategy for Alzheimer's Disease?
Kee Chan AHN ; Cameron R LEARMAN ; Glen B BAKER ; Charles L WEAVER ; Phil Sang CHUNG ; Hyung Gun KIM ; Mee Sook SONG
Journal of Korean Medical Science 2019;34(46):e297-
Accumulated evidence suggests that sporadic cases of Alzheimer's disease (AD) make up more than 95% of total AD patients, and diabetes has been implicated as a strong risk factor for the development of AD. Diabetes shares pathological features of AD, such as impaired insulin signaling, increased oxidative stress, increased amyloid-beta (Aβ) production, tauopathy and cerebrovascular complication. Due to shared pathologies between the two diseases, anti-diabetic drugs may be a suitable therapeutic option for AD treatment. In this article, we will discuss the well-known pathologies of AD, including Aβ plaques and tau tangles, as well as other mechanisms shared in AD and diabetes including reactive glia and the breakdown of blood brain barrier in order to evaluate the presence of any potential, indirect or direct links of pre-diabetic conditions to AD pathology. In addition, clinical evidence of high incidence of diabetic patients to the development of AD are described together with application of anti-diabetic medications to AD patients.
Alzheimer Disease
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Blood-Brain Barrier
;
Encephalitis
;
Humans
;
Incidence
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Insulin
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Neuroglia
;
Oxidative Stress
;
Pathology
;
Risk Factors
;
Tauopathies
5.Misuse of prescription medicines is as prevalent as the use of recreational drugs and novel psychoactive substances in Singapore: an unrecognised public health issue?
Wui Ling CHAN ; Paul Ivor DARGAN ; Colleen Michelle HAYNES ; Jody Lynn GREEN ; Joshua Curtis BLACK ; Richard Charles DART ; David Michael WOOD
Singapore medical journal 2022;63(10):572-576
INTRODUCTION:
Misuse of prescription medicines and the harms associated with such use are growing threats across the world. There is currently, however, limited data on the extent of prescription medicine misuse in Singapore and whether this is a current threat in the country.
METHODS:
An online survey, limited to 1,000 individuals (aged 21 years and over) who were residents in Singapore, was administered through a survey panel company in September 2015. The survey collected information on participant demographics, and their awareness, self-reported lifetime and past-year misuse of commonly available prescription medicines in Singapore as well as the use of a range of recreational drugs and novel psychoactive substances (NPS).
RESULTS:
Lifetime (6.7%) and past-year (4.8%) misuse of any prescription medicine was comparable to lifetime (6.0%) and past-year (3.0%) use of any recreational drugs/NPS. The top five prescription medicines for lifetime misuse were: diazepam (2.7%); codeine (2.3%); dhasedyl (promethazine, codeine and ephedrine; 1.6%); panadeine (paracetamol and codeine; 1.5%); and methylphenidate (1.2%). The top five drugs for past-year misuse were: diazepam (1.6%); codeine (0.9%); panadeine (0.7%); alprazolam (0.6%); baclofen (0.6%); and gabapentin (0.6%).
CONCLUSION
Misuse of prescription medicine in Singapore was common, with prevalence comparable to the use of recreational drugs/NPS. A common source for misused drugs was physicians. Further studies are required to determine whether this is more widespread in Singapore and establish the different forms of drug diversion, so that appropriate prevention strategies can be implemented.
Humans
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Illicit Drugs/adverse effects*
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Public Health
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Singapore/epidemiology*
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Substance-Related Disorders/drug therapy*
;
Prescription Drugs/adverse effects*
;
Codeine
;
Diazepam
;
Prescriptions
6.National burden of influenza-associated hospitalizations in Cambodia, 2015 and 2016
Vanra Ieng ; M Ximena Tolosa ; Bunchhoeng Tek ; Borann Sar ; Kheng Sim ; Heng Seng ; Miliya Thyl ; Chan Dara ; Mey Moniborin ; Rebekah J Stewart ; Leila Bell ; Georgios Theocharopoulos ; Savuth Chin ; Darapheak Chau ; A. Danielle Iuliano ; Ann Moen ; Reiko Tsuyuoka ; Erica Dueger ; Sheena Sullivan ; Sovann Ly
Western Pacific Surveillance and Response 2018;9(5):44-52
Introduction:
The burden of influenza in Cambodia is not well known, but it would be useful for understanding the impact of seasonal epidemics and pandemics and to design appropriate policies for influenza prevention and control. The severe acute respiratory infection (SARI) surveillance system in Cambodia was used to estimate the national burden of SARI hospitalizations in Cambodia.
Methods:
We estimated age-specific influenza-associated SARI hospitalization rates in three sentinel sites in Svay Rieng, Siem Reap and Kampong Cham provinces. We used influenza-associated SARI surveillance data for one year to estimate the numerator and hospital admission surveys to estimate the population denominator for each site. A national influenza-associated SARI hospitalization rate was calculated using the pooled influenza-associated SARI hospitalizations for all sites as a numerator and the pooled catchment population of all sites as denominator. National influenza-associated SARI case counts were estimated by applying hospitalization rates to the national population.
Results:
The national annual rates of influenza-associated hospitalizations per 100 000 population was highest for the two youngest age groups at 323 for <1 year and 196 for 1–4 years. We estimated 7547 influenza-associated hospitalizations for Cambodia with almost half of these represented by children younger than 5 years.
Discussion
We present national estimates of influenza-associated SARI hospitalization rates for Cambodia based on sentinel surveillance data from three sites. The results of this study indicate that the highest burden of severe influenza infection is borne by the younger age groups. These findings can be used to guide future strategies to reduce influenza morbidity.
7.Medium-term mortality after hip fractures and COVID-19: A prospective multi-centre UK study.
Gareth CHAN ; Ashish NARANG ; Arash AFRAMIAN ; Zaid ALI ; Joseph BRIDGEMAN ; Alastair CARR ; Laura CHAPMAN ; Henry GOODIER ; Catrin MORGAN ; Chang PARK ; Sarah SEXTON ; Kapil SUGAND ; Thomas WALTON ; Michael WILSON ; Ajay BELGAUMKAR ; Kieran GALLAGHER ; Koushik GHOSH ; Charles GIBBONS ; Joshua JACOB ; Andrew KEIGHTLEY ; Zuhair NAWAZ ; Khaled SARRAF ; Christopher WAKELING ; William KIEFFER ; Benedict ROGERS
Chinese Journal of Traumatology 2022;25(3):161-165
PURPOSE:
The COVID-19 pandemic has caused 1.4 million deaths globally and is associated with a 3-4 times increase in 30-day mortality after a fragility hip fracture with concurrent COVID-19 infection. Typically, death from COVID-19 infection occurs between 15 and 22 days after the onset of symptoms, but this period can extend up to 8 weeks. This study aimed to assess the impact of concurrent COVID-19 infection on 120-day mortality after a fragility hip fracture.
METHODS:
A multi-centre prospective study across 10 hospitals treating 8% of the annual burden of hip fractures in England between 1st March and 30th April, 2020 was performed. Patients whose surgical treatment was payable through the National Health Service Best Practice Tariff mechanism for "fragility hip fractures" were included in the study. Patients' 120-day mortality was assessed relative to their peri-operative COVID-19 status. Statistical analysis was performed using SPSS version 27.
RESULTS:
A total of 746 patients were included in this study, of which 87 (11.7%) were COVID-19 positive. Mortality rates at 30- and 120-day were significantly higher for COVID-19 positive patients relative to COVID-19 negative patients (p < 0.001). However, mortality rates between 31 and 120-day were not significantly different (p = 0.107), 16.1% and 9.4% respectively for COVID-19 positive and negative patients, odds ratio 1.855 (95% CI 0.865-3.978).
CONCLUSION
Hip fracture patients with concurrent COVID-19 infection, provided that they are alive at day-31 after injury, have no significant difference in 120-day mortality. Despite the growing awareness and concern of "long-COVID" and its widespread prevalence, this does not appear to increase medium-term mortality rates after a hip fracture.
COVID-19
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Hip Fractures/surgery*
;
Humans
;
Pandemics
;
Prospective Studies
;
Retrospective Studies
;
State Medicine
;
United Kingdom/epidemiology*