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1.
Equine Vet J ; 2024 Jul 18.
Article in English | MEDLINE | ID: mdl-39023084

ABSTRACT

BACKGROUND: Fractures of the paracondylar process of the occipital bone may cause headshaking, neck pain and neurologic deficits. The condition is being recognised more frequently with increasing availability of computed tomography. However, to date only limited information is available as to presentation, treatment, surgical approach and outcome. OBJECTIVES: To describe the clinical signs, imaging findings, treatment, surgical approach and outcome in three horses diagnosed with paracondylar process fracture. STUDY DESIGN: Retrospective case series. METHODS: Clinical records and diagnostic images of affected cases were reviewed. RESULTS: Two cases had ventral nonunion fractures-one of these presented with neck pain, headshaking and behavioural changes, while in the other the fracture was a suspected incidental finding in a case of poor performance. A third case with a more dorsal fracture presented with acute facial nerve paralysis. Diagnosis was by computed tomography in all cases, although imaging of ventral fractures by radiography was found to be feasible. Where clinical signs could be associated confidently with the fracture, conservative management resulted in improvement but not complete resolution. Repeated recurrence of clinical signs after prolonged periods of remission necessitated surgical removal in one case, which was readily accomplished with the aid of ultrasound guidance, and led to rapid resolution of clinical signs without significant post-operative complications. The surgical approach is described. MAIN LIMITATIONS: Limited follow-up was available. CONCLUSIONS: Paracondylar process fracture should be considered as a differential diagnosis for headshaking, neck pain, poor performance and facial paresis, and is a justification for performing computed tomography in such cases. A multi-disciplinary approach is beneficial due to the potential for orthopaedic, neurologic, ophthalmologic and behavioural clinical signs, with additional need for expertise in diagnostic imaging and pain management. Surgical fragment removal should be considered for ventral fractures.

3.
Catheter Cardiovasc Interv ; 103(4): 532-538, 2024 03.
Article in English | MEDLINE | ID: mdl-38415895

ABSTRACT

BACKGROUND: Studies evaluating the safety and efficacy of drug coating balloons (DCB) for the treatment of lesions in large coronary vessel are limited. AIMS: Our study aimed to evaluate the performance of a sirolimus DCB in large coronary arteries. METHODS: We analyzed all the procedures included in the EASTBOURNE Registry (NCT03085823) enrolling patients with a clinical indication to percutaneous coronary intervention performed by a sirolimus DCB according to investigator judgment. In the present analysis, a cut-off of 2.75 mm was used to define large coronary arteries. Primary endpoint of the study was clinically driven target lesion revascularization (TLR) at 24 months whereas secondary endpoint included procedural success, myocardial infarction (MI), cardiac death and total mortality. RESULTS: Among the 2123 patients and 2440 lesions enrolled in the EASTBOURNE study between 2016 and 2020, 757 patients/810 lesions fulfilled the criteria for the present analysis. Mean reference vessel diameter was 3.2 ± 0.3 mm with mean lesion length of 22 ± 7 mm. Procedural success was high (96%) and at 2-year follow up the device showed a good efficacy with a TLR rate of 9%. There were 34 deaths (4.5%), 30 MIs (4%) and 8 BARC type 3-5 bleedings (1.1%). In-stent restenosis (629 lesions) and de novo lesions (181) were associated with 11% and 4% rates of TLR at 2 years, respectively (p = 0.003). CONCLUSIONS: Clinical performance of a sirolimus DCB in large coronary artery vessels shows promising signals at 2-year follow up, both in de novo and in-stent restenosis lesions.


Subject(s)
Coronary Artery Disease , Coronary Restenosis , Humans , Coronary Artery Disease/diagnostic imaging , Coronary Artery Disease/therapy , Coronary Vessels/diagnostic imaging , Coronary Restenosis/diagnostic imaging , Coronary Restenosis/etiology , Sirolimus/adverse effects , Treatment Outcome , Coronary Angiography , Coated Materials, Biocompatible
4.
Cardiovasc Diabetol ; 23(1): 52, 2024 02 03.
Article in English | MEDLINE | ID: mdl-38310281

ABSTRACT

BACKGROUND: The outcomes of percutaneous coronary intervention (PCI) in diabetic patients are still suboptimal, and it is unclear if diabetic patients might derive a benefit from the use of drug-coated balloons. AIMS: To evaluate the impact of diabetes mellitus on the outcomes of patients undergoing PCI with sirolimus-coated balloon (SCB) MagicTouch (Concept Medical, India). METHODS: We conducted a subgroup analysis of the prospective, multicenter, investigator-initiated EASTBOURNE registry, evaluating the performance of MagicTouch SCB in patients with and without diabetes. The study primary endpoint was target lesion revascularization (TLR) at 12-month follow-up. Secondary clinical endpoints were major adverse clinical events (MACE), death, myocardial infarction (MI), and BARC 2-5 bleedings. RESULTS: Among 2,083 enrolled patients, a total of 864 suffered from diabetes (41.5%). Patients with diabetes had a numerically higher occurrence of TLR (6.5% vs. 4.7% HR 1.38, 95%CI 0.91-2.08), all-cause death (3.8% vs. 2.6%, HR 1.81, 95%CI 0.95-3.46), and MACE (12.2% vs. 8.9%; HR 1.26 95%CI 0.92-1.74). The incidence of spontaneous MI was significantly higher among diabetic patients (3.4% vs. 1.5%, HR 2.15 95%CI 1.09-4.25); bleeding events did not significantly differ. The overall incidence of TLR was higher among in-stent restenosis (ISR) as compared to de-novo coronary lesions, irrespectively from diabetes status. CONCLUSIONS: In the EASTBOURNE DIABETES registry, diabetic patients treated with the MagicTouch SCB did not have a significant increase in TLR when compared to non-diabetic patients; moreover, diabetic status did not affect the study device performance in terms of TLR, in both de-novo lesions and ISR.


Subject(s)
Coronary Artery Disease , Coronary Restenosis , Diabetes Mellitus , Myocardial Infarction , Percutaneous Coronary Intervention , Humans , Coronary Artery Disease/diagnostic imaging , Coronary Artery Disease/therapy , Coronary Artery Disease/complications , Sirolimus/adverse effects , Percutaneous Coronary Intervention/adverse effects , Treatment Outcome , Myocardial Infarction/epidemiology , Myocardial Infarction/etiology , Diabetes Mellitus/diagnosis , Diabetes Mellitus/epidemiology , Diabetes Mellitus/chemically induced , Registries , Coronary Restenosis/epidemiology , Coronary Restenosis/etiology
5.
JACC Cardiovasc Interv ; 16(14): 1794-1803, 2023 07 24.
Article in English | MEDLINE | ID: mdl-37495352

ABSTRACT

BACKGROUND: Drug-coated balloons (DCB) represent 1 of the most promising innovations in interventional cardiology and may represent a valid alternative to drug-eluting stents. Currently, some sirolimus-coated balloons (SCB) are being investigated for several coronary artery disease applications. OBJECTIVES: This study sought to understand the role of a novel SCB for the treatment of coronary artery disease. METHODS: EASTBOURNE (All-Comers Sirolimus-Coated Balloon European Registry) is a prospective, multicenter, investigator-driven clinical study that enrolled real-world patients treated with SCB. Primary endpoint was target lesion revascularization (TLR) at 12 months. Secondary endpoints were procedural success, myocardial infarction (MI), all-cause death, and major adverse clinical events (a composite of death, MI, and TLR). All adverse events were censored and adjudicated by an independent clinical events committee. RESULTS: A total population of 2,123 patients (2,440 lesions) was enrolled at 38 study centers in Europe and Asia. The average age was 66.6 ± 11.3 years, and diabetic patients were 41.5%. De novo lesions (small vessels) were 56%, in-stent restenosis (ISR) 44%, and bailout stenting occurred in 7.7% of the patients. After 12 months, TLR occurred in 5.9% of the lesions, major adverse clinical events in 9.9%, and spontaneous MI in 2.4% of the patients. The rates of cardiac/all-cause death were 1.5% and 2.5%, respectively. The primary outcome occurred more frequently in the ISR cohort (10.5% vs 2.0%; risk ratio: 1.90; 95% CI: 1.13-3.19). After multivariate Cox regression model, the main determinant for occurrence of the primary endpoint was ISR (OR: 5.5; 95% CI: 3.382-8.881). CONCLUSIONS: EASTBOURNE, the largest DCB study in the coronary field, shows the safety and efficacy of a novel SCB in a broad population of coronary artery disease including small vessels and ISR patients at mid-term follow-up. (The All-Comers Sirolimus-Coated Balloon European Registry [EASTBOURNE]; NCT03085823).


Subject(s)
Angioplasty, Balloon, Coronary , Coronary Artery Disease , Coronary Restenosis , Myocardial Infarction , Humans , Middle Aged , Aged , Coronary Artery Disease/diagnostic imaging , Coronary Artery Disease/therapy , Coronary Artery Disease/complications , Angioplasty, Balloon, Coronary/adverse effects , Sirolimus/adverse effects , Treatment Outcome , Myocardial Infarction/complications , Registries , Coronary Restenosis/diagnostic imaging , Coronary Restenosis/etiology
6.
J Cardiovasc Med (Hagerstown) ; 22(2): 94-100, 2021 02 01.
Article in English | MEDLINE | ID: mdl-32740442

ABSTRACT

AIMS: The purpose of the EASTBOURNE registry is to evaluate the immediate and long-term clinical performance of a novel sirolimus-coated balloon (SCB) in a real-world population of patients with coronary artery disease. We here present the prespecified interim analysis after the enrollment of the first 642 patients who obtained 1-year clinical follow-up. METHODS: EASTBOURNE is a prospective, international, multicenter, all-comer investigator-driven clinical registry, which is enrolling consecutive patients treated with SCB at 42 European and Asiatic centers. Primary study endpoint is target-lesion revascularization (TLR) at 12 months. Secondary endpoints are procedural success and major adverse cardiac events through 36 months. RESULTS: Diabetes mellitus was present in 41% of patients. Acute coronary syndrome was present in 45% of patients and de novo lesions were 55%; 83% of the in-stent restenosis (ISR) patients had drug-eluting stents restenosis. Lesion predilatation was performed in 95% of the cases and bailout stenting occurred in 7.5%. So far, 642 patients have a complete 12-month follow-up. TLR occurred in 2.5%, myocardial infarction in 2.3%, total death in 1% and major adverse cardiac events in 5.8% of patients. A prespecified analysis of comparison between ISR and de-novo lesions showed a significantly higher occurrence of TLR in the ISR population (5.4 vs. 0.2%, P = 0.0008). CONCLUSION: The current interim analysis of 12-month follow-up of the EASTBOURNE registry shows good immediate performance and an adequate and encouraging safety profile through 12 months for this novel SCB.


Subject(s)
Angioplasty, Balloon, Coronary/instrumentation , Coated Materials, Biocompatible , Coronary Artery Disease/surgery , Drug-Eluting Stents , Registries , Sirolimus/pharmacology , Aged , Coronary Angiography , Coronary Artery Disease/diagnosis , Female , Follow-Up Studies , Humans , Immunosuppressive Agents/pharmacology , Male , Prospective Studies , Time Factors , Treatment Outcome
7.
Public Health ; 129(11): 1471-8, 2015 Nov.
Article in English | MEDLINE | ID: mdl-26296847

ABSTRACT

OBJECTIVES: Fever screening systems, such as Infrared Thermal Detection Systems (ITDS), have been used for rapid identification of potential cases during respiratory disease outbreaks for public health management. ITDS detect a difference between the subject and ambient temperature, making deployment in hot climates more challenging. This study, conducted in Singapore, a tropical city, evaluates the accuracy of three different ITDS for fever detection compared with traditional oral thermometry and self-reporting in a clinical setting. STUDY DESIGN: This study is a prospective operational evaluation conducted in the Singapore military on all personnel seeking medical care at a high-volume primary healthcare centre over a one week period in February 2014. METHODS: Three ITDS, the STE Infrared Fever Screening System (IFSS), the Omnisense Sentry MKIII and the handheld Quick Shot Infrared Thermoscope HT-F03B, were evaluated. Temperature measurements were taken outside the healthcare centre, under a sheltered walkway and compared to oral temperature. Subjects were asked if they had fever. RESULTS: There were 430 subjects screened, of whom 34 participants (7.9%) had confirmed fever, determined by oral thermometer measurement. The handheld infrared thermoscope had a very low sensitivity (29.4%), but a high specificity (96.8%). The STE ITDS had a moderate sensitivity (44.1%), but a very high specificity (99.1%). Self-reported fevers showed good sensitivity (88.2%) and specificity (93.9%). The sensitivity of the Omnisense ITDS (89.7%) was the highest among the three methods with good specificity (92.0%). CONCLUSION: The new generation Omnisense ITDS displayed a relatively high sensitivity and specificity for fever. Though it has a lower sensitivity, the old generation STE ITDS system showed a very high specificity. Self-reporting of fever was reliable. The handheld thermograph should not be used as a fever-screening tool under tropical conditions.


Subject(s)
Fever/diagnosis , Infrared Rays , Mass Screening/instrumentation , Tropical Medicine , Body Temperature , Female , Humans , Male , Military Personnel/statistics & numerical data , Prospective Studies , Sensitivity and Specificity , Singapore , Young Adult
9.
Ann Oncol ; 26(7): 1378-84, 2015 Jul.
Article in English | MEDLINE | ID: mdl-25851632

ABSTRACT

BACKGROUND: The open-label, phase II RECORD-2 trial compared efficacy and safety of first-line everolimus plus bevacizumab (EVE/BEV) with interferon plus bevacizumab (IFN/BEV) in patients with metastatic renal cell carcinoma. PATIENTS AND METHODS: Previously untreated patients were randomized 1:1 to bevacizumab 10 mg/kg every 2 weeks with either everolimus 10 mg/day (EVE/BEV) or interferon (9 MIU 3 times/week, if tolerated) (IFN/BEV). Tumor assessments occurred every 12 weeks. The primary objective was the assessment of treatment effect on progression-free survival (PFS), based on an estimate of the chance of a subsequent phase III trial success (50% threshold for phase II success). RESULTS: Baseline characteristics were balanced between the EVE/BEV (n = 182) and IFN/BEV (n = 183) arms. The median PFS was 9.3 and 10.0 months in the EVE/BEV and IFN/BEV arms, respectively (P = 0.485). The predicted probability of phase III success was 5.05% (hazard ratio = 0.91; 95% confidence interval 0.69-1.19). The median duration of exposure was 8.5 and 8.3 months for EVE/BEV and IFN/BEV, respectively. The percentage of patients discontinuing because of adverse events (AEs) was 23.4% for EVE/BEV and 26.9% for IFN/BEV. Common grade 3/4 AEs included proteinuria (24.4%), stomatitis (10.6%), and anemia (10.6%) for EVE/BEV and fatigue (17.1%), asthenia (14.4%), and proteinuria (10.5%) for IFN/BEV. The median overall survival was 27.1 months in both arms. CONCLUSIONS: The efficacy of EVE/BEV and IFN/BEV appears similar. No new or unexpected safety findings were identified and, with the exception of proteinuria in about one-fourth of the population, EVE/BEV was generally well tolerated. CLINICAL TRIAL REGISTRY AND TRIAL REGISTRATION NUMBER: ClinicalTrials.gov: NCT00719264.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Carcinoma, Papillary/drug therapy , Carcinoma, Renal Cell/drug therapy , Kidney Neoplasms/drug therapy , Adult , Aged , Aged, 80 and over , Bevacizumab/administration & dosage , Carcinoma, Papillary/mortality , Carcinoma, Papillary/secondary , Carcinoma, Renal Cell/mortality , Carcinoma, Renal Cell/secondary , Everolimus/administration & dosage , Female , Follow-Up Studies , Humans , Interferon-alpha/administration & dosage , Kidney Neoplasms/mortality , Kidney Neoplasms/pathology , Male , Middle Aged , Neoplasm Metastasis , Neoplasm Staging , Prognosis , Survival Rate , Young Adult
10.
Dalton Trans ; 43(35): 13159-68, 2014 Sep 21.
Article in English | MEDLINE | ID: mdl-25032996

ABSTRACT

The emission from transition metal complexes is usually produced from triplet excited states. Owing to strong spin-orbit coupling (SOC), the fast conversion of singlet to triplet excited states via intersystem crossing (ISC) is facilitated. Hence, in transition metal complexes, emission from singlet excited states is not favoured. Nevertheless, a number of examples of transition metal complexes that fluoresce with high intensity have been found and some of them were even comprehensively studied. In general, three common photophysical characteristics are used for the identification of fluorescent emission from a transition metal complex: emission lifetimes on the nanosecond scale; a small Stokes shift; and intense emission under aerated conditions. For most of the complexes reviewed here, singlet emission is the result of ligand-based fluorescence, which is the dominant emission process due to poor metal-ligand interactions leading to a small metal contribution in the excited states, and a competitive fluorescence rate constant when compared to the ISC rate constant. In addition to the pure fluorescence from metal complexes, another two types of fluorescent emissions were also reviewed, namely, delayed fluorescence and fluorescence-phosphorescence dual emissions. Both emissions also have their respective unique characteristics, and thus they are discussed in this perspective.

11.
Hong Kong Med J ; 19(6 Suppl 7): 1-24, 2013 Dec.
Article in English | MEDLINE | ID: mdl-24356244

ABSTRACT

This report presents the latest estimates of Hong Kong domestic health spending for financial years 1989/90 to 2010/11, cross-stratified and categorised by financing source, provider, and function.Total expenditure on health (TEH) was HK$93 433 million in financial year 2010/11, which represents an increase of HK$5364 million or 6.1% over the preceding year. As a result of a gradual recovery from the financial tsunami in 2008, gross domestic product (GDP) grew faster relative to TEH leading to a drop in TEH as a percentage of GDP from 5.2% in 2009/10 to 5.1% in 2010/11.During the period 1989/90 to 2010/11, TEH per capita (at constant 2011 prices)grew at an average annual rate of 4.8%, which was faster than the average annual growth rate of per capita GDP by 1.8 percentage points.Compared to 2009/10, in 2010/11 public and private expenditure on health increased by 3.7% and 8.5% and reached HK$45 491 million and HK$47 943 million, respectively. Consequently, the public share of TEH dropped slightly from 49.8% to 48.7% over the year. Regarding private spending, the most important source was out-of-pocket payments by households (35.0% of TEH),followed by employer-provided group medical benefits (7.4%), and private insurance (7.2%). It is worth noting that private insurance will likely overtake employer benefits as the second largest private payer if the insurance market continues to expand at the current rate.Of the HK$93 433 million TEH in 2010/11, HK$88 987 million (95.2%) was current expenditure and HK$4446 million (4.8%) was for capital expenses (ie investment in medical facilities). Analysed by health care function, services for curative care accounted for the largest share of TEH (65.8%), which was made up of ambulatory services (34.0%), in-patient curative care (27.0%), day patient hospital services (4.2%), and home care (0.5%). Notwithstanding its small share,the total spending for day patient hospital services shows an increasing trend over the period 1989/90 to 2010/11, which is likely due to shift of policy directives from in-patient to day patient care, and the increasing demand for dialysis and cataract surgery in an ageing population.Hospitals accounted for an increasing share of TEH, from 28.2% in 1989/90 to 46.8% in 2002/03 and then dropped slightly to 43% to 44%during the period 2005/06 to 2010/11, which was primarily driven by reduced expenditure by the Hospital Authority. As a result of several epidemics (e g avian flu, SARS, swine flu) and expansion of the private health insurance market in the last two decades, spending on the provision and administration of public health programmes, and general health administration and insurance accounted for increasing, though less significant, shares of TEH over that period.Without taking into account capital expenses (ie investment in medical facilities), public current expenditure on health amounted to HK$42 264 million(47.5% of total current expenditure) in 2010/11. The remaining HK$46 723 million was from private sources. Public current expenditure was mostly incurred at hospitals (74.7%), whereas private current expenditure was mostly incurred at providers of ambulatory health care (51.0%). Although both public and private spending were mostly expended on personal health care services and goods (91.4%of total current spending), the distributional patterns among functional categories differed. Public expenditure was targeted at in-patient care (47.6%) and substantially less on out-patient care (27.5%). In comparison, private spending was mostly concentrated on out-patient care (43.2%),whereas in-patient care (24.5%) and medical goods outside the patient care setting (19.9%) accounted for most of the remaining share. Compared to the Organisation for Economic Cooperation and Development countries, Hong Kong has devoted a relatively low percentage of GDP to healthcare in the last decade. As a share of TEH, public funding(either general government revenue or social security funds) was also lower than in most economies with comparable economic development and public revenue collection base.


Subject(s)
Health Expenditures/statistics & numerical data , Financing, Government/economics , Health Personnel/economics , Hong Kong
12.
Antiviral Res ; 99(3): 301-6, 2013 Sep.
Article in English | MEDLINE | ID: mdl-23769930

ABSTRACT

Infection by one of the 4 distinct serotypes of dengue virus (DENV) threatens >40% of the world's population, with no efficacious vaccine or antiviral agent currently available. DENV replication through the virus-encoded nonstructural protein (NS) 5 protein occurs in the infected cell cytoplasm, but NS5 from DENV2 has thus far been shown to localize strongly in the nucleus throughout infection. Here we use specific antibodies cross-reactive with NS5 from DENV1-4 to demonstrate nuclear localization of NS5 from all DENV serotypes for the first time in both infected as well as transfected cells, although to differing extents. The small-molecule inhibitor Ivermectin was inhibitory towards both DENV 1 and 2 NS5 interaction with its nuclear transporter importin α/ß in vitro, and protected against infection from DENV1-4. Ivermectin thus has potential in the clinical setting as a dengue antiviral.


Subject(s)
Antiviral Agents/pharmacology , Cell Nucleus/virology , Dengue Virus/drug effects , Dengue/virology , Ivermectin/pharmacology , Viral Nonstructural Proteins/metabolism , Cytoplasm/virology , Dengue/drug therapy , Dengue Virus/classification , Dengue Virus/genetics , Dengue Virus/metabolism , Humans , Protein Transport/drug effects , Viral Nonstructural Proteins/genetics
13.
Singapore Med J ; 47(2): 143-6, 2006 Feb.
Article in English | MEDLINE | ID: mdl-16435057

ABSTRACT

INTRODUCTION: The National Cancer Survivors Day Foundation defines a cancer "survivor" as anyone living with a history of cancer--from the moment of diagnosis through the remainder of life. Little is known about the size and make-up of this population or about the medical care experience of and social implications for patients who have had a diagnosis of cancer in Singapore. An opportunistic survey was undertaken to understand how members of the public believe about this population. METHODS: A sample of the general public was undertaken during the "CancerVive" event in 2004. Questionnaires regarding employment as well as attitudes towards cancer and cancer survivorship were distributed. RESULTS: Members of the public held certain misconceptions about cancer survivors. They also have certain negative attitudes toward cancer survivors. Beliefs and attitudes about cancer are similar for cancer survivors and the general public. Although members of the public had positive attitudes towards working with cancer survivors, the majority felt that cancer survivors should not be given equal opportunities at work, by not employing cancer survivors if they were in the position to hire. CONCLUSION: Further research with larger and more representative samples needs to be undertaken to extend the understanding into cancer survivorship issues.


Subject(s)
Attitude , Employment , Neoplasms/rehabilitation , Prejudice , Survivors , Female , Humans , Male , Middle Aged , Singapore
14.
Br J Anaesth ; 95(4): 524-9, 2005 Oct.
Article in English | MEDLINE | ID: mdl-16100236

ABSTRACT

BACKGROUND: There are few data describing levobupivacaine pharmacokinetics in infants (<3 months) after caudal administration. METHODS: An open-label study was undertaken to examine the pharmacokinetics of levobupivacaine 2.5 mg ml(-1), 2 mg kg(-1) in children aged less than 3 months after single-shot caudal epidural administration. Plasma concentrations were determined at intervals from 0.5 to 4 h after injection. A population pharmacokinetic analysis of levobupivacaine time-concentration profiles (84 observations) from 22 infants with mean postnatal age (PNA) 2.0 (range 0.6-2.9) months was undertaken using non-linear mixed effects models (NONMEM). Time-concentration profiles were analysed using a one-compartment model with first-order input and first-order elimination. Estimates were standardized to a 70 kg adult using allometric size models. RESULTS: Population parameter estimates (between-subject variability) for total levobupivacaine were clearance (CLt) 12.8 [coefficient of variation (CV) 50.6%] litre h(-1) 70 kg(-1), volume of distribution (Vt) 202 (CV 31.6%) litre 70 kg(-1), absorption half-life (Tabs) 0.323 (CV 18.6%) h 70 kg(-1). Estimates for the unbound drug were clearance (CLfree) 104 (CV 43.5%) litre h(-1) 70 kg(-1), volume of distribution (Vfree) 1700 (CV 44.9%) litre 70 kg(-1), absorption half-life (Tabsfree) 0.175 (CV 83.7%) h 70 kg(-1). There was no effect attributable to PNA on CL or V. Time to peak plasma concentration (Tmax) was 0.82 (CV 18%) h. Peak plasma concentration (Cmax) was 0.69 (CV 25%) microg ml(-1) for total levobupivacaine and 0.09 (CV 37%) microg ml(-1) for unbound levobupivacaine. CONCLUSIONS: Clearance in infants is approximately half that described in adults, suggesting immaturity of P450 CYP3A4 and CYP1A2 enzyme isoforms that metabolize levobupivacaine in infants. This lower clearance delays Tmax, which was noted to occur approximately 50 min after administration of caudal epidural levobupivacaine.


Subject(s)
Anesthesia, Caudal , Anesthetics, Local/blood , Aging/blood , Body Weight/physiology , Bupivacaine/analogs & derivatives , Bupivacaine/blood , Female , Humans , Infant , Infant, Newborn , Levobupivacaine , Male
15.
Qual Life Res ; 14(5): 1413-9, 2005 Jun.
Article in English | MEDLINE | ID: mdl-16047516

ABSTRACT

INTRODUCTION: The Hong Kong Chinese version of the WHOQOL-BREF was designed as a self-administered questionnaire and has limitations in clinical application on subjects who have limitations in reading or writing. An interview version is therefore needed to avoid sampling biases in clinical studies. Since there are significant differences in the written Chinese and spoken Cantonese, which is a dialect commonly spoken among people in Hong Kong, and adaptation process for converting the written Chinese into spoken Cantonese was necessary. The interview version was designed to allow administration in both face-to-face interview and telephone interview mode. METHODS: Three members of the research team translated the formal written Chinese in the self-administered version of the WHOQOL-BREF(HK) into colloquial Cantonese separately. Brief notes extracted from the facet definitions of the WHOQOL-100 were added in brackets after some questions to further explain the intention of the questions. Two series of focus groups were conducted and subsequently the field test version was produced. 329 subjects were recruited by convenient sampling method for the field test. RESULTS: The interview version and the self-administered version was found equivalent. The ICC values of the domain scores ranged from 0.73 in the environment domain to 0.83 in the psychological domain. The face-to-face interview and telephone interview mode of administration were also found equivalent. The ICC for the domain scores ranged from 0.76 in the social interaction domain to 0.84 in the psychological domain. The other psychometric properties of the interview version were found comparable to the self-administered version. CONCLUSION: The self-administered and the interview version of the WHOQOL-BREF are regarded as identical in group comparison. The authors advise that it is acceptable to use different versions on different subjects in the same study, provided that the same version is applied on the same subject throughout the study.


Subject(s)
Health Status Indicators , Interviews as Topic , Psychometrics/instrumentation , Quality of Life , Surveys and Questionnaires , Adult , Aged , Aged, 80 and over , China , Female , Focus Groups , Hong Kong , Humans , Male , Middle Aged , Translating
16.
Br J Cancer ; 93(1): 23-8, 2005 Jul 11.
Article in English | MEDLINE | ID: mdl-15942627

ABSTRACT

We retrospectively analysed the results of patients with advanced non-small-cell lung cancer treated with gefitinib to derive clinical factors predictive of response and a favourable survival outcome. Patients were treated with gefitinib 250 mg per day and re-evaluated 4-8 weeks later with repeat CT scan and every 8 weeks thereafter to assess response and the duration of response. Pathology review by a histopathologist was conducted, in particular to confirm a recently published result of bronchioloalveolar carcinoma histology or its components as predictive of response to gefitinib. Logistic regression and Cox regression analytical methods were applied to determine factors that could predict for response and improved overall survival. A total of 110 patients were treated. The overall response rate was 32% partial responses (PRs). Only never-smoking status was predictive of response in the logistic regression analysis, adjusted OR=6.1, 95% CI=1.7, 21.5. The presence of a PR and good performance status were predictive of a favourable survival outcome from the Cox regression modelling. Responders had an adjusted HR of 3.0, 95% CI=1.5-5.8 compared to nonresponders, while patients with ECOG status 0-1 had an adjusted HR of 0.42, 95% CI=0.25-0.72, compared with patients with ECOG status 2-4. Bronchioloalveolar carcinoma or its components were distinctly absent on pathology review. In conclusions, Never-smoking status is an important clinical predictor of a favourable response to gefitinib.


Subject(s)
Antineoplastic Agents/therapeutic use , Carcinoma, Non-Small-Cell Lung/drug therapy , Lung Neoplasms/drug therapy , Quinazolines/therapeutic use , Smoking , Adult , Aged , Aged, 80 and over , Cohort Studies , Female , Gefitinib , Humans , Logistic Models , Male , Middle Aged , Proportional Hazards Models , Retrospective Studies , Survival Analysis
17.
Hong Kong Med J ; 10(5): 319-24, 2004 Oct.
Article in English | MEDLINE | ID: mdl-15479960

ABSTRACT

OBJECTIVE: To describe the characteristics of suicidal patients and their suicidal acts occurring in general wards. DESIGN: Retrospective study. SETTING: All general public hospitals in Hong Kong. PATIENTS: Survey data based on hospital records of patients who died of suicide or who attempted suicide in general wards between 2000 and 2002 were studied. MAIN OUTCOME MEASURES: Demographic information, medical history, and circumstances of the suicidal acts. RESULTS: Twenty-six hospitals reported a total of 166 suicidal acts, which included 34 completed suicides, corresponding to 9.46 attempted suicides and 1.93 completed suicides per 100 000 admissions. Most suicidal acts occurred in medical wards. Patients were, on average, in their mid-50s, predominantly male, and had been admitted because of physical problems. Fewer than 20% were admitted because of attempted suicide. A significant proportion of suicide attempters used potentially lethal suicide methods in the wards. Wide ranges of objects were used in the suicidal acts. Completed suicides tended to occur after midnight and in the ward toilet. Patients who went missing and then committed suicide acts did so in the first few hours of leaving the hospital. The timing of suicidal acts varied greatly with the reasons of admission. CONCLUSION: Prevention efforts in general wards are unlikely to be effective if they simply focus on patients admitted for attempted suicide, or on the restriction of suicide means. For patients admitted to general wards because of attempted suicide, the risk is highest just after admission; hence, these patients have to be monitored closely. A high degree of alertness to the possibility of depression and suicidal risk among general ward patients is required.


Subject(s)
Suicide/statistics & numerical data , Adult , Aged , Female , Hong Kong/epidemiology , Hospitals, General , Humans , Male , Middle Aged , Retrospective Studies , Time Factors
18.
Ann Oncol ; 15(6): 974-8, 2004 Jun.
Article in English | MEDLINE | ID: mdl-15151957

ABSTRACT

BACKGROUND: Medical or surgical castration is effective in advanced prostate cancer but with profound side-effects, particularly on sexual function. Effective, less toxic therapies are needed. This study examined whether the addition of finasteride to high-dose bicalutamide enhanced disease control, as measured by additional decreases in serum prostate-specific antigen (PSA). PATIENTS AND METHODS: Forty-one patients with advanced prostate cancer received bicalutamide (150 mg/day). Finasteride (5 mg/day) was added at first PSA nadir. Serum PSA was measured every 2 weeks until disease progression. Questionnaires were administered to assess sexual function. RESULTS: Median follow-up is 3.9 years. At the first PSA nadir, median decrease in PSA from baseline was 96.5%. Thirty of 41 patients (73%) achieved a second PSA nadir and median decrease of 98.5% from baseline. Median time to each nadir was 3.7 and 5.8 weeks, respectively. Median time to treatment failure was 21.3 months. Toxicities were minor, including gynecomastia. Seventeen of 29 (59%) and 12 of 24 (50%) men had normal sex drive at baseline and at second PSA nadir, respectively. One-third of men had spontaneous erection at both time points. CONCLUSION: Finasteride provides additional intracellular androgen blockade when added to bicalutamide. Duration of control is comparable to castration, with preserved sexual function in some patients.


Subject(s)
Adenocarcinoma/drug therapy , Anilides/administration & dosage , Antineoplastic Agents, Hormonal/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Finasteride/administration & dosage , Prostatic Neoplasms/drug therapy , Adenocarcinoma/blood , Adenocarcinoma/pathology , Aged , Anilides/adverse effects , Antineoplastic Agents, Hormonal/adverse effects , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Erectile Dysfunction/chemically induced , Finasteride/adverse effects , Humans , Male , Middle Aged , Neoplasm Staging , Nitriles , Pilot Projects , Prostate-Specific Antigen/blood , Prostatic Neoplasms/blood , Prostatic Neoplasms/pathology , Tosyl Compounds
20.
Singapore Med J ; 44(3): 138-40, 2003 Mar.
Article in English | MEDLINE | ID: mdl-12953728

ABSTRACT

OBJECTIVE: To study the incidence of peritonitis in CAPD patients in their first six months on CAPD. PATIENTS AND METHODS: All patients who started on CAPD between 1 January 1999 and 31 December 1999 were included in the study. All of them were followed for six months for development of peritonitis. RESULTS: Four episodes of CAPD related peritonitis occurred in four different patients during this period. Patient One was an elderly man with diabetes mellitus who had Streptococcal peritonitis two months after he started on CAPD. Patient Two was an elderly woman with diabetes who developed Streptococcal peritonitis four months after she was on CAPD. Patient Three was a 51-year-old lady with diabetes who suffered Pseudomonas peritonitis at four months on CAPD. Patient Four was a young man without diabetes. He had peritonitis after he was on CAPD for four months. The culture showed no bacteria growth. For the first six months of CAPD the peritonitis rate was calculated as one episode for every 51 patient months. The average peritonitis rate of all patients on CAPD at the National University Hospital in 1999 was calculated as one episode for every 27 patient months. The CAPD related peritonitis involving new CAPD patients was lower.


Subject(s)
Peritoneal Dialysis, Continuous Ambulatory/adverse effects , Peritonitis/etiology , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Peritonitis/microbiology
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