The CEPHEUS Pan-Asian survey: high low-density lipoprotein cholesterol goal attainment rate among hypercholesterolaemic patients undergoing lipid-lowering treatment in a Hong Kong regional centre

ABSTRACT

Hong Kong Med J 2012;18:395–406 | Number 5, October 2012
ORIGINAL ARTICLE
The CEPHEUS Pan-Asian survey: high low-density lipoprotein cholesterol goal attainment rate among hypercholesterolaemic patients undergoing lipid-lowering treatment in a Hong Kong regional centre
Raymond HW Chan, PH Chan, Kelvin KW Chan, Simon CC Lam, Jo Jo Hai, Michael KL Wong, Frankie CC Tam, Linda Lam, Carmen WS Chan, YM Lam, David CW Siu, HF Tse, Stephen WL Lee
Division of Cardiology, Department of Medicine, Queen Mary Hospital, Pokfulam, Hong Kong
 
 
OBJECTIVES. To evaluate attainment of low-density lipoprotein cholesterol goals among hypercholesterolaemic patients undergoing lipid-lowering drug treatment in Hong Kong and to identify potential determinants of treatment outcomes.
 
DESIGN. Cross-sectional observational study.
 
SETTING. A single site in Hong Kong, as part of the CEPHEUS Pan-Asian survey.
 
PATIENTS. Subjects with hypercholesterolaemia aged 18 years or above, who had been on lipid-lowering drug treatment for at least 3 months with no dose adjustment for at least 6 weeks.
 
RESULTS. A total of 561 such patients (mean age, 65.3; standard deviation, 9.7 years) were evaluated. Most had major cardiovascular risk factors; 534 (95.2%) of 561 patients had coronary heart disease and 534 (95.4%) of 560 patients had low-density lipoprotein cholesterol goals set at lower than 70 mg/dL. In all, 465 (82.9%) patients attained their respective low-density lipoprotein cholesterol goals. Among 75 patients who had coronary heart disease or equivalent risk, and multiple risk factors with a 10-year coronary heart disease risk of over 20%, 62 (82.7%) attained their respective low-density lipoprotein cholesterol goals. Significant predictors of low-density lipoprotein cholesterol goal attainment included the patient's baseline lipid profile (total cholesterol and low-density lipoprotein cholesterol levels), blood pressure, and drugs (statin/non-statin) used for treatment.
 
CONCLUSIONS. Hypercholesterolaemic patients undergoing lipid-lowering drug treatment in the present Hong Kong study were able to achieve a very high attainment rate for the low-density lipoprotein cholesterol goal, despite the fact that most of them had major cardiovascular risk factors.
 
Key words: Anticholesteremic agents; Cardiovascular diseases/prevention & control; Cholesterol, LDL; Hypercholesterolemia; Treatment outcome
 
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A pilot study on the efficacy of Picolax given as a four-week course for the treatment of refractory constipation

ABSTRACT

Hong Kong Med J 2012;18:388–94 | Number 5, October 2012
ORIGINAL ARTICLE
A pilot study on the efficacy of Picolax given as a four-week course for the treatment of refractory constipation
Annie OO Chan
Gastroenterology and Hepatology Centre, The Hong Kong Sanatorium and Hospital, Happy Valley, Hong Kong
 
 
OBJECTIVES. Although Picolax (sodium picosulphate and magnesium citrate) has been widely documented for use in bowel preparation, there is limited literature on its efficacy in the treatment of constipation. Refractory constipation is a more difficult situation with limited treatment options available. The primary objective of this study was to investigate the efficacy of Picolax in the treatment of refractory constipation.
 
DESIGN. Prospective single-centre cohort study.
 
SETTING. The Gastroenterology and Hepatology Centre of a major private hospital in Hong Kong.
 
PATIENTS. Patients aged 18 years or more with chronic constipation refractory to tegaserod or polyethylene glycol and attending the centre in the period of July 2009 to June 2010.
 
RESULTS. A total of 20 patients completed this 6-week single-centre study, with a 2-week baseline assessment and 4-week treatment period. Complete data sets were available for analysis from 17 of these patients. The mean (standard deviation) age of the cohort was 50 (9) years, of which 94% were female. Treatment consisted of half-a-sachet of Picolax taken orally on alternate days, 3 times a week. Patients were required to fill in daily and weekly diary entries of their bowel habit. The mean (standard deviation) number of weekly complete spontaneous bowel movements increased from 0.5 (0.9) to 2.4 (2.6) times per week (P=0.02) after initiation of the treatment, which was a clinically and statistically significant difference; with a mean change of +1.9 (95% confidence interval, 0.3 to 3.4) per week. As a secondary endpoint, 11 patients recorded the use of rescue medication before and after the 4-week treatment. The ratio of patients who took rescue medication decreased significantly from 73% (n=8) to 0% (n=0) [P=0.008]. The mean reduction in the frequency of resorting to rescue medication was 2.6 times (95% confidence interval, -4.2 to -1.1) per week.
 
CONCLUSIONS. Picolax improved the number of complete spontaneous bowel movements and significantly reduced resorting to rescue medication. This formulation could therefore be considered as a treatment option in patients with chronic constipation who are refractory to conventional treatment regimens.
 
Key words: Constipation; Laxatives; Picolines; Polyethylene glycols; Treatment outcome
 
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Prospective cross-sectional study using questionnaire to assess the effect of a different nomenclature for psychiatric illnesses on the perception of these diseases by university students

ABSTRACT

Hong Kong Med J 2012;18:381–7 | Number 5, October 2012
ORIGINAL ARTICLE
Prospective cross-sectional study using questionnaire to assess the effect of a different nomenclature for psychiatric illnesses on the perception of these diseases by university students
Jerome Lau, LS Kam, YM Tsang, Boris CK Chow, YY Fang, KW Lam, YT Lam, YY Li, Cally HS Wong
Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
 
 
OBJECTIVE. To assess the effect of a difference in nomenclature for psychiatric illness on perceptions of university students.
 
DESIGN. Cross-sectional study.
 
SETTING. Three local universities in Hong Kong.
 
PARTICIPANTS. A total of 201 university students (undergraduates or postgraduates) were interviewed with a questionnaire.
 
MAIN OUTCOME MEASURES. Score difference between the new and old nomenclature of each disease for each question of the questionnaire, using a 5-point Likert scale and an integrated score difference for each disease.
 
RESULTS. Of the seven diseases investigated, six yielded a significant yet mild increase in positive perceptions with the new nomenclature. These diseases included schizophrenia (integrated score difference: +0.158, P<0.001), neurasthenia (integrated score difference: +0.117, P<0.001), paranoia (integrated score difference: +0.209, P<0.001), personality disorder (integrated score difference: +0.282, P<0.001), attention deficit hyperactivity disorder (integrated score difference: +0.086, P=0.005), and bipolar disorder (integrated score difference: +0.154, P<0.001). Epilepsy showed a negative perception with its new nomenclature (integrated score difference: -0.119, P<0.001).
 
CONCLUSIONS. The new nomenclature system for psychiatric diseases achieves more positive perceptions among the university students than the old nomenclature. Epilepsy was the exception for which the old nomenclature conferred a more positive perception. Further studies on this topic involving a more general population should be advocated to confirm the improvements in perception with the new naming system for psychiatric diseases.
 
Key words: Hong Kong; Psychotic disorders; Stereotyping; Terminology as topic; Translating
 
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Patient experiences with public hospital care: first benchmark survey in Hong Kong

ABSTRACT

Hong Kong Med J 2012;18:371–80 | Number 5, October 2012
ORIGINAL ARTICLE
Patient experiences with public hospital care: first benchmark survey in Hong Kong
Eliza LY Wong, Angela Coulter, Annie WL Cheung, Carrie HK Yam, EK Yeoh, Sian M Griffiths
The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong
 
 
OBJECTIVE. To measure patient satisfaction in relation to in-patient experience in public hospitals.
 
DESIGN. Cross-sectional study.
 
SETTING. Twenty-five selected Hospital Authority acute and convalescence hospitals in Hong Kong.
 
PARTICIPANTS. Eligible patients discharged between 15 June and 27 September 2010 from the selected Hospital Authority public hospitals.
 
MAIN OUTCOME MEASURES. A total of 54 items were used to measure patient experience on aspects of hospital care. They included the process of admission to hospital, staying in the hospital and ward (environment, food and facilities; hospital staff; patient care and treatment), the process of leaving hospital, and the overall impression of hospital care. Free-text comments from respondents were also recorded.
 
RESULTS. A total of 5030 patients were successfully interviewed, amounting to a response rate of 52%. The findings showed that 80% (confidence interval, 79-81%) of patients rated the care they received in hospital as good or better. However, there were a few areas where performance was relatively low, including waiting time for a ward bed for accident and emergency cases, food quality, infection control, information provided about their condition/treatment, seeking patient input about their opinions and quality of care, and patient engagement in the decisions about their treatment and care, as well as the discharge process.
 
CONCLUSIONS. This patient experience survey used a validated instrument (Hong Kong Inpatient Experience Questionnaire) to provide important insights to executives and health care professionals on their care to patients and to identify areas for improvement in public hospitals. Further surveys should be carried out to monitor changes in patient experience and satisfaction on a regular basis. Such surveys could facilitate improvements through analysis of results on patient satisfaction.
 
Key words: Patient acceptance of health care; Patient satisfaction; Primary health care; Quality of health care
 
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Emergency management of dental trauma: knowledge of Hong Kong primary and secondary school teachers

ABSTRACT

Hong Kong Med J 2012;18:362–70 | Number 5, October 2012
ORIGINAL ARTICLE
Emergency management of dental trauma: knowledge of Hong Kong primary and secondary school teachers
Cecilia Young, KY Wong, LK Cheung
Private practice, Hong Kong
 
 
OBJECTIVES. To investigate the level of knowledge about emergency management of dental trauma among Hong Kong primary and secondary school teachers.
 
DESIGN. Questionnaire survey.
 
SETTING. A teachers' union that unites 90% of teachers in Hong Kong.
 
PARTICIPANTS.Randomly selected primary and secondary school teachers.
 
RESULTS. Only 32.8% of respondents correctly stated that a person sustaining dental trauma should go to dentists directly. In all, 73.1% of teachers correctly stated that a dental trauma patient should go for treatment immediately. Only 32.5% knew that a fractured tooth should be put in liquid. Even fewer (23.2%) realised that the displaced tooth should be repositioned back to the original position. Relatively more respondents (74.7%) understood that an avulsed baby tooth should not be put back. Disappointingly, only 16.3% of teachers knew that an avulsed permanent tooth should be replanted. Furthermore, only 29.6% of teachers thought that they were able to distinguish between deciduous teeth and permanent teeth, whilst 20.4% correctly identified at least one of the appropriate mediums: milk, physiological saline or saliva, for storing an avulsed tooth. Teachers who previously received first-aid training with dental content or acquired dental injury information from other sources, scored significantly higher than teachers without such training or acquired information.
 
CONCLUSION. The knowledge on emergency management of dental trauma among primary and secondary school teachers in Hong Kong is insufficient, particularly on the handling of permanent tooth avulsion and the appropriate storage medium for avulsed teeth. Receipt of first-aid training with dental contents and acquisition of dental injury information from other sources were positively correlated with knowledge in managing dental trauma.
 
Key words:Emergency treatment; Health education, dental; Tooth avulsion; Tooth fractures; Tooth injuries
 
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Perceptions of professional attributes in medicine: a qualitative study in Hong Kong

ABSTRACT

Hong Kong Med J 2012;18:318–24 | Number 4, August 2012
ORIGINAL ARTICLE
Perceptions of professional attributes in medicine: a qualitative study in Hong Kong
Danny C Leung, Enoch K Hsu, Edwin C Hui
Medical Ethics Unit, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
 
 
OBJECTIVE. Medical professionalism has been widely discussed in western scholarly literature. However, since Hong Kong has a mixed Chinese-western culture, it remains uncertain whether Hong Kong health care professionals, medical students, and patients see medical professionalism in exactly the same way as westerners. The objective of the present study was to explore perceptions of medical professionalism in Hong Kong.
 
DESIGN. Individual semi-structured interviews.
 
SETTING. Medical faculty preceptors, residents, interns, nurses, and students from the Li Ka Shing Faculty of Medicine of the University of Hong Kong. Subjects were recruited at an out-patient clinic of Queen Mary Hospital.
 
PARTICIPANTS. We interviewed 39 subjects, including six medical faculty preceptors, six hospital residents, four medical interns, eight nurses, eight out-patients, and seven medical students. The interviews were transcribed and coded. Grounded theory was employed for framing and analysing the interviews.
 
RESULTS. A total of 30 primary themes were identified and grouped under three secondary themes, ie 'Expectations of a professional doctor', 'Work values', and 'Patient care'. In general, the primary themes were consistent with recognised professional attributes in western bioethics, such as knowledge and skills, holistic care, and communication skills. A closer analysis suggested that traditional Chinese thought also played an important role in shaping the medical professionalism of Hong Kong. Challenges to be faced by Hong Kong doctors due to recent social changes were also identified.
 
CONCLUSIONS. Medical professionalism in Hong Kong is shaped by both western medical ethics and traditional Chinese thought. The values treasured by Hong Kong health care professionals as well as technological advance, and the city's proximity to Mainland China makes Hong Kong health care unique. It is important to maintain the present work attitudes and at the same time adapt to new social changes.
 
Key words: Clinical competence; Delivery of health care; Physician-patient relations; Professional practice
 
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Relationship between population configuration and the spatial pattern of pandemic influenza A (H1N1) 2009 in Hong Kong

ABSTRACT

Hong Kong Med J 2012;18:310–7 | Number 4, August 2012
ORIGINAL ARTICLE
Relationship between population configuration and the spatial pattern of pandemic influenza A (H1N1) 2009 in Hong Kong
SS Lee, NS Wong
Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong
 
 
OBJECTIVE. To investigate the association between population structure and the pandemic influenza A (H1N1) 2009 epidemic in a spatial context.
 
DESIGN. A retrospective case-report series study.
 
SETTING. Hong Kong.
 
PATIENTS. Laboratory-confirmed cases of human influenza A (H1N1) 2009 reported to the Centre for Health Protection between May and September 2009.
 
MAIN OUTCOME MEASURES. A geo-referenced database was established comprising age, gender, and residence location of all influenza A (H1N1) 2009 cases reported in the first 5 months of the Kong Kong epidemic's first wave in 2009. They were divided into four age categories: infant, student, adult, and elderly. Correlation coefficients and odds ratios were calculated to explore the association of H1N1 cases with population configurations in 400 District Council Constituency Areas.
 
RESULTS. Of the 24 414 H1N1 cases reported, students accounted for the highest proportion (54.6%), followed by adults (33.4%), infants (11.1%), and the elderly (0.9%). Transmission was initially concentrated in students which then extended to infants and adults. Except for the elderly, the total population size and that of each age category were significantly associated with the H1N1 cases spatially. Mobility indicators as reflected by the number of students studying outside and adults working outside residential District Council Constituency Areas were also positively associated with H1N1 cases.
 
CONCLUSIONS. Local population structure and mobility were associated with the spatial distribution of the H1N1 epidemic, despite the small size of the territory of Hong Kong. If an influenza epidemic hits again, an examination of these factors spatially would be useful in supporting the planning of interventions.
 
Key words: Disease outbreaks; Hong Kong/ epidemiology; Influenza A virus, H1N1 subtype; Influenza, human; Population dynamics
 
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Virtual blood banking in Hong Kong

ABSTRACT

Hong Kong Med J 2012;18:304–9 | Number 4, August 2012
ORIGINAL ARTICLE
Virtual blood banking in Hong Kong
KF Wong, Angela MY Kwan, Michael LG Wong, Clarence CK Lam, SC Yip
Department of Pathology, Queen Elizabeth Hospital, Jordan, Hong Kong
 
 
OBJECTIVE. To review our experience in virtual blood banking for intra-operative transfusion in Hong Kong.
 
DESIGN. Retrospective study.
 
SETTING. Three major acute hospitals and a specialised centre for joint replacement surgery with installation of an Operating Theatre Blood Transaction System.
 
PATIENTS. Patients undergoing surgery under anaesthesia and requiring intra-operative transfusion for the period from the implementation of the system in individual institutes (Queen Elizabeth Hospital: June 1997; Princess Margaret Hospital: May 2001; Queen Mary Hospital: October 2009; and Hong Kong Buddhist Hospital: December 2010) till September 2011.
 
RESULTS. Under the system, 58 923 units of red cells were released intra-operatively for 18 264 patients (11% of the total number of blood units issued by the blood banks in these institutes during the study period). About 1% of them (613 units) entailed unmatched red cells given to 183 patients for emergency transfusions during surgery. The mean time required for the issue of the first unit of red cells was less than 1 minute. A total of 1231 units of red cells were returned unused after being released. Among them, 95 units were deemed unfit for re-issue because they had left the temperature-monitored blood storage refrigerators in the operating theatres for more than 30 minutes. There was no delay in transfusion or postponement of surgery due to problems or downtime of the Operating Theatre Blood Transaction System.
 
CONCLUSION. Our experience has shown that our virtual blood banking system was efficient and effective, and helped ensure that the right patient received the right amount of the right blood at the right time. The system can be implemented either locally in the same hospital with a central blood bank, or in a more remote and networked site without a nearby supporting blood bank.
 
Key words: Blood banks; Blood grouping and crossmatching; Blood transfusion; Intraoperative care; Medical informatics
 
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The profile of women who seek emergency contraception from the family planning service

ABSTRACT

Hong Kong Med J 2012;18:299–303 | Number 4, August 2012
ORIGINAL ARTICLE
The profile of women who seek emergency contraception from the family planning service
Sue ST Lo, PC Ho
The Family Planning Association of Hong Kong, 10/F, 130 Hennessy Road, Wanchai, Hong Kong
 
 
OBJECTIVES. To review the profile of emergency contraceptive users, their reasons for using emergency contraception, and whether they use it correctly.
 
DESIGN. Retrospective analysis of medical records.
 
SETTING. Six Birth Control Clinics and three Youth Health Care Centres of the Family Planning Association of Hong Kong.
 
PARTICIPANTS. Women requesting emergency contraception between 2006 and 2008.
 
MAIN OUTCOME MEASURES. Demographics of emergency contraception users, reasons for requesting emergency contraception, number of times the subject had unprotected intercourse before emergency contraception use, type of emergency contraception provided, coitus-treatment intervals, and outcomes.
 
RESULTS. A total of 11 014 courses of emergency contraception were provided, which included 10 845 courses of levonorgestrel-only pills, 168 intrauterine contraceptive devices, and one course of pills plus an intrauterine contraceptive device. The mean age of the users was 30 years. Two thirds (65.6%) were nulliparous and 64.9% had not had a previous abortion. Their major reasons for requesting emergency contraception were: omission of contraceptive at the index intercourse (38.9%), condom accidents (38.0%), and non-use of any regular contraceptives (20.6%). Non-users of contraceptives were more likely to have had a previous abortion. In all, 97.9% of women took emergency contraception within 72 hours of their unprotected intercourse; 98% had had a single act of unprotected intercourse. None of the intrauterine contraceptive device users became pregnant. The failure rate for emergency contraceptive pills was 1.8%.
 
CONCLUSIONS. Women requested emergency contraception because contraceptives were omitted or condom accidents. Health care providers should focus on motivating women with a history of abortion to use contraceptives, and ensure that condom users know how to use them correctly. Most women followed instructions on the use for emergency contraception and their outcomes were satisfactory.
 
Key words: Contraceptives, postcoital; Intrauterine devices; Levonorgestrel
 
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Early outcome after emergency gastrectomy for complicated peptic ulcer disease

ABSTRACT

Hong Kong Med J 2012;18:291–8 | Number 4, August 2012
ORIGINAL ARTICLE
Early outcome after emergency gastrectomy for complicated peptic ulcer disease
Mina Cheng, WH Li, MT Cheung
Department of Surgery, Queen Elizabeth Hospital, Jordan, Hong Kong
 
 
OBJECTIVE. To analyse outcomes of patients who underwent emergency gastrectomy for complicated peptic ulcer disease.
 
DESIGN. Prognostic study on a historical cohort.
 
SETTING. A regional hospital in Hong Kong.
 
PATIENTS. Patients who underwent emergency gastrectomy from 2000 to 2009 in our hospital.
 
MAIN OUTCOME MEASURES. Primary outcome measures were in-hospital mortality and the predictors of such deaths. Secondary outcome measures were 7-day mortality, 30-day mortality, and morbidities.
 
RESULTS. In all, 112 patients had emergency gastrectomies performed for complicated peptic ulcer disease during the study period. In-hospital mortality was 30%. In the univariate analysis, old age, duodenal ulcer, failed primary surgery, gastrojejunostomy anastomosis for reconstruction, hand-sewn technique for duodenal stump closure, use of a sump drain, low haemoglobin level, preoperative blood transfusion, prolonged prothrombin time, and high creatinine or bilirubin levels were associated with an increased risk of in-hospital mortality. In the multivariate analysis, failed primary surgery, old age, and high creatinine level turned out to be independent risk factors.
 
CONCLUSIONS. Emergency gastrectomy should be considered seriously as the primary treatment option in appropriately selected elderly patients, instead of salvage procedures to repair a perforation or control bleeding by plication.
 
Key words: Duodenal ulcer; Emergencies; Gastrectomy; Mortality; Stomach ulcer
 
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