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Yan H, Zhu GY, Wong M, Lee V. Computational platform for modelling, analysis, and prediction of anti-EGFR drug resistance for lung cancer. Hong Kong Med J 2019; 25 Suppl 9:40-42. [PMID: 31889035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023] Open
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Gross N, Ferrarotto R, Nagarajan P, Bell D, El-Naggar A, Johnson J, Yuan Y, Glisson B, Wong M, Rosenthal D, Esmaeli B, Migden M, Wargo J, Weber R, Myers J. Phase II study of neoadjuvant cemiplimab prior to surgery in patients with stage III/IV (M0) cutaneous squamous cell carcinoma of the head and neck (CSCC-HN). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz394.071] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Burton E, Amaria R, Glitza I, Shephard M, Diab A, Milton D, Patel S, Mcquade J, Wong M, Hwu P, Wargo J, Davies M, Tawbi H. Safety and efficacy of TRIplet combination of nivolumab (N) with dabrafenib (D) and trametinib (T) [TRIDeNT] in patients (pts) with BRAF-mutated metastatic melanoma (MM): A single center phase II study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz255.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gaudreau P, Ajami N, Sepesi B, Karpinets T, Reuben A, Wong M, Parra E, Federico L, Gopalakrishnan V, Mitchell K, Negrao M, Spencer C, Vaporciyan A, Weissferdt A, Haymaker C, Tran H, Bernatchez C, Landry L, Roarty E, Cascone T, Heymach J, Zhang J, Wistuba I, Zhang J, Wargo J, Gibbons D. P1.04-11 Depicting the Intra-Tumoral Viral and Microbial Landscape of Localized NSCLC Using Standard Next Generation Sequencing Data. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Amin TN, Wong M, Pointer S, Goodhart V, Bean E, Jurkovic D. Reference ranges for uterine vein dimensions in non-pregnant women with normal pelvic organs. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2019; 54:403-411. [PMID: 30834625 DOI: 10.1002/uog.20254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/25/2019] [Accepted: 02/27/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To establish reference ranges for uterine vein (UtV) diameters in non-pregnant women with normal pelvic organs. METHODS This was a prospective study of all women attending the general gynecological clinic of a university teaching hospital in the UK, between August 2015 and December 2016. All women aged ≥ 18 years underwent a transvaginal ultrasound examination in accordance with the study protocol. In women with normal pelvic organs, the largest trunk of the uterine venous plexus was identified in the transverse plane on each side. The maximum anteroposterior vessel diameter was measured by placing the calipers on the inner walls of the vein, and the mean of three measurements was used as the representative value. Inter- and intraobserver variability was assessed in a subgroup of 30 women. Maximum UtV diameter was compared between right and left UtVs and between pre- and postmenopausal women. Factors associated with UtV diameter were assessed and reference ranges were constructed. RESULTS Of 1500 women examined, 486 (32%) had normal pelvic organs on ultrasound scan and were included in the final analysis. In all women, the uterine venous trunk was clearly visualized and there was no significant difference between the maximum median left and right UtV diameters (P = 0.37). UtV diameters were generally lower in postmenopausal, compared with premenopausal, women, with the difference being statistically significant for the right UtV and the average of left and right UtVs. There was a gradual increase in UtV diameter with advancing age, with a peak observed in women aged 41-50 years and decreasing values in older age groups. Univariable analysis showed that parity, menopausal status and age were associated significantly with UtV diameters (P < 0.01). On multivariable analysis, only higher parity was significantly associated with increasing venous size in both pre- and postmenopausal women. Reference ranges were constructed separately for nulliparous and parous premenopausal women aged between 18 and 45 years. CONCLUSION UtVs can be identified and measured consistently in all women with normal pelvic organs using transvaginal ultrasound. Parity was the main factor influencing the maximum mean UtV diameter, which had to be taken into account when constructing reference ranges. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Bean E, Cutner A, Saridogan E, Wong M, Naftalin J, Jurkovic D. Hemoperitoneum as a precursor of deep pelvic endometriosis: prospective cohort study. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2019; 54:389-394. [PMID: 30677178 DOI: 10.1002/uog.20222] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 01/10/2019] [Accepted: 01/15/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To determine whether significant hemoperitoneum could be a precursor of deep pelvic endometriosis in non-pregnant premenopausal women presenting with severe acute lower abdominal pain. METHODS This was a prospective observational cohort study carried out at a dedicated gynecological diagnostic unit over a period of 18 months. We included consecutive non-pregnant, premenopausal women who attended with severe acute lower abdominal pain and underwent a pelvic ultrasound examination. Women were triaged for surgical or conservative management depending on the cause of pain and severity of their symptoms. Those who were selected for conservative management were invited for follow-up ultrasound scans. The main outcome measure was evidence of newly developed deep endometriosis at follow-up examination. RESULTS Of 118 non-pregnant women who attended our unit with severe acute lower abdominal pain, 20 underwent emergency surgery and 17 had a history of endometriosis, or evidence of endometriosis on the initial scan, and were excluded from the study. Therefore, conservative management was employed in 81 women, eight of whom had evidence of significant hemoperitoneum at presentation. A total of 35 women attended for all follow-up ultrasound scans. At the completion of follow-up, four of six (67% (95% CI, 22-96%)) women who presented initially with significant intra-abdominal bleeding had developed new evidence of deep endometriosis, compared with one of 29 (3% (95% CI, 0-18%)) of those without hemoperitoneum (relative risk, 19.3 (95% CI, 3-144); P < 0.001). CONCLUSION In some women, the presence of significant hemoperitoneum that is managed conservatively precedes the development of deep endometriosis. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Harrison J, Wong M, McManimen S. Impact of Puberty and Age on Adolescent Inhibition Over Time. Arch Clin Neuropsychol 2019. [DOI: 10.1093/arclin/acz035.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objective
We measured how puberty impacted inhibition over three years. We hypothesized that age and puberty development would predict inhibition at each time point. Results revealed differential effects of puberty and age over time.
Method
Participants from Southern Idaho were 245 adolescents at Time 1 (T1) (M = 10.4, SD = 1.5, 50% female, 64% Caucasian), 196 adolescents at Time 2 (T2) (M = 11.8, SD = 1.5, 50% female, 81% Caucasian), and 87 adolescents at Time 3 (T3) (M = 13, SD = 1.5, 56% female, 82% Caucasian). Participants completed a physical exam with a registered nurse, which included the Tanner Scale (Apter & Hermanson, 2002; Tinggaard et. al., 2012) and the Puberty Development Scale (Petersen et al., 1988). Inhibition was assessed using stop-signal reaction time (SSRT) within the Stop-it Task (Logan, Cowan, & Davis, 1984).
Results
Using structural equation modeling, for T1, the overall model demonstrated a good fit, χ2(3) = 1.23, p = .75, RMSEA = .00, CFI = 1.00, TLI = 1.04. Puberty significantly predicted inhibition (β = -.21, p < .05), i.e., higher puberty scores predicted stronger inhibition. However, age was not a significant predictor. At T2, the model demonstrated a good fit, χ2(7) = 7.77, p = .35, RMSEA = .03, CFI = 1.00, TLI = .99. Age significantly predicted inhibition (β=-.39, p < .001). However, puberty was not a significant predictor. In T3, neither age nor puberty predicted inhibition.
Conclusions
Our results indicate that early adolescent increases in inhibition may be due to puberty development rather than age. As one ages, puberty has less effect, and chronological age becomes more significant. Finally, in mid-adolescence, neither age nor puberty significantly affects inhibition. These findings highlight the changing effects of age and puberty on inhibitory control across adolescence.
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Back M, Jayamanne D, Brazier D, Newey A, Bailey D, Schembri G, Hsiao E, Khasraw M, Wong M, Kastelan M, Brown C, Wheeler H. Pattern of failure in anaplastic glioma patients with an IDH1/2 mutation. Strahlenther Onkol 2019; 196:31-39. [PMID: 31028406 DOI: 10.1007/s00066-019-01467-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 03/29/2019] [Indexed: 12/27/2022]
Abstract
PURPOSE The current study aimed to assess patterns of failure (PoF) in anaplastic glioma (AG) patients managed with intensity-modulated radiation therapy (IMRT) and their relationship to molecular subtype. METHODS The outcomes of AG patients managed between 2008 and 2014 and entered into a prospective database were assessed, including PoF. AG was initially defined using the WHO 2007 classification, but for analysis, patients were subsequently recategorised based on WHO 2016 as anaplastic oligodendroglioma (AOD), astrocytoma isocitrate dehydrogenase (IDH) mutant (AAmut) or astrocytoma IDH wildtype (AAwt). Management involved IMRT and temozolomide (TMZ), including from 2011 patients with an IDH mutation (IDHmut) planned with 18F-fluoroethyltyrosine (FET) and 18F-fluorodeoxyglucose (FDG) positron-emission tomography (PET). PoF was local, marginal or distant in relation to the IMRT volume. Relapse-free survival (RFS) was calculated from the start of IMRT. RESULTS A total of 156 patients were assessed, with median follow-up of 5.1 years. Of these patients, 75% were IDHmut, 44% were managed at first or later relapse and 73% received TMZ. Relapse occurred in 68 patients, with 6‑year RFS of 75.0, 48.8 and 2.5% for AOD, AAmut and AAwt, respectively (p < 0.001). There was a component of local relapse in 63%, of marginal relapse in 19% and of distant relapse in 37% of relapses. Isolated local, marginal and distant relapse was evident in 51, 9 and 22%, respectively. A distant relapse pattern was more frequent in IDHmut compared to IDHwt patients (26% vs. 45%, p = 0.005), especially within the first 2 years post-IMRT. In multivariate analysis, distant relapse remained associated with AAmut (p < 0.002) and delayed IMRT until the second relapse (p < 0.001). CONCLUSION Although patients with IDH-mutated AG have improved outcomes, there was a higher proportion of distant relapses occurring during the 2 years after IMRT.
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Fan K, Wong M, Cheng K. Denovo Malignancy in Chinese Patients Post-Heart Transplant in Current Era-A “Not So Bad Prognosis”? J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Voskoboinik A, Kalman J, Nicholls T, Nanayakkara S, Wong G, Prabhu S, Nalliah C, Sugumar H, Stub D, Kaye D, Wong M, Kotschet E, Taylor A, Kistler P. Alcohol Abstinence in Moderate Drinkers with Atrial Fibrillation: Results from the Alcohol-AF Randomised Controlled Trial. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Reddy H, Wong M, Einarsson J. Laparoscopic Resection of Bladder Fibroid. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Wong M, Cohen S, Einarsson J. Laparoscopic Ureteral End to End Anastomosis for Intrinsic Ureteral Endometriosis. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Keith P, Wong M. MARKERS OF TH2 INFLAMMATION IN PATIENTS WITH CHRONIC SPONTANEOUS URTICARIA: A SYSTEMATIC LITERATURE REVIEW. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Glitza I, Rohlfs M, Iqbal M, Richard J, Burton E, Duncan S, Brown C, Anderson J, Hwu P, Hwu WJ, Wong M, Yee C, Patel S, Woodman S, Amaria R, Diab A, Tawbi H, Davies M. A phase I/Ib study of concurrent intravenous (IV) and intrathecal (IT) nivolumab (Nivo) for melanoma patients (pts) with leptomeningeal disease (LMD). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy289.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chui E, Wong KL, Chan KY, Wong M. Validation study of the Brief Medication Adherence Scale (BMAS) in patients with schizophrenia and related disorders in Hong Kong. Asian J Psychiatr 2018; 37:154-160. [PMID: 30265964 DOI: 10.1016/j.ajp.2018.09.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 09/06/2018] [Accepted: 09/10/2018] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to develop and test an original self-rating instrument known as Brief Medication Adherence Scale (BMAS) to assess antipsychotic adherence level of Hong Kong Chinese patients with schizophrenia. On the interview day, BMAS and three other validated rating scales were given to local patients with schizophrenia and related disorders for completion. BMAS was required to fill in a second time after two weeks for the study of test-retest reliability. Results of BMAS were matched with those of other scales and blood level of prescribed mood stabilizers to test for construct validity. Data analysis was performed for 84 patients. Median BMAS scores recorded at both times were identical at 89/100, and a cutoff score of 70 was considered medication adherent with a sensitivity of 98.61% (CI 92.50%-99.96%). BMAS was positively and significantly correlated with the established Medication Adherence Rating Scale -Taiwanese (Spearman's ρ = 0.56, p < 0.05) and with variation in serum mood stabilizer level (Pearson's r = 0.55, p < 0.05). On the other hand, correlations with scales measuring mental condition and medication side effects were weak. Principal component analysis found two components (i.e. medication taking behaviors and attitudes) for the 10-question BMAS. Test-retest BMAS total scores were significantly correlated (intraclass correlation alpha = 0.87, p < 0.05), and Cronbach's alpha measuring internal consistency was 0.68. The current study confirms that BMAS is a valid and reliable scale that assesses medication adherence in patients with schizophrenia.
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Memtsa M, Jauniaux E, Wong M, Jurkovic D. Ultrasound diagnosis of endometrial polyps in pregnancy. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2018; 52:548-549. [PMID: 29363831 DOI: 10.1002/uog.19012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 01/07/2018] [Accepted: 01/17/2018] [Indexed: 06/07/2023]
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Gan H, Murone C, Wong M, Fitt G, Kennedy E, Maag D, Aldape K. Radiologically evident treatment effects in patients with glioblastoma (GBM) and its clinical implications. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy273.386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Thean L, Lo M, Wong M, Tang C, Tan I, Cheah P. PO-350 Case-case GWAS to identify germline metastasis risk variants in sporadic colorectal carcinomas. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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69
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McCarty T, Bourne B, Wong M, Travis JK, Merritt MP, Brown MF, Krishna J. 0757 Feasibility of Split Night Sleep Studies in a Pediatric Population at a Tertiary-care Pediatric Sleep Center. Sleep 2018. [DOI: 10.1093/sleep/zsy061.756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Voskoboinik A, Moskovitch J, Plunkett G, Prabhu S, Wong G, Bloom J, Nalliah C, Sugumar H, Parameswaran R, Mclellan A, Ling L, Goh C, Noaman S, Fernando H, Wong M, Taylor A, Kalman J, Kistler P. Hand-Held Paddles More Effective than Adhesive Patches for Cardioversion of Atrial Fibrillation in Obese Patients: Results from the DCR-BMI Multicenter Randomised Controlled Trial. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Lawley C, Ayer J, Badawi N, Wong M, Popat H. A Dramatic and Rapid Reduction in the Size of a Massive Cardiac Rhabdomyoma after Sirolimus Use in a Premature Infant: Case Report and Review of Literature. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Man J, Mercieca-Bebber R, Habib R, Carlino M, Nagrial A, Gao B, Gurney H, Wong M, Hui R. Patient reported outcomes during long term treatment with PD-1 inhibitors focusing on chronic toxicity and quality of life. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx729.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Garnett R, Prestwich W, Atanackovic J, Wong M, Byun S. Characterization of a LaBr 3 (Ce) detector for gamma-ray spectrometry for CANDU power reactors. RADIAT MEAS 2017. [DOI: 10.1016/j.radmeas.2017.03.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wong M, Man R, Gupta P, Lim S, Lim B, Sabanayagam C, Cheng C, Wong T. Is corneal arcus an independent predictor of incident cardiovascular disease? Acta Ophthalmol 2017. [DOI: 10.1111/j.1755-3768.2017.0s019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wong M, Man R, Gupta P, Fenwick E, Li L, Lamoureux E. A systematic review of the associations between dietary intake and diabetic retinopathy. Acta Ophthalmol 2017. [DOI: 10.1111/j.1755-3768.2017.02312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Williams C, Montoya B, Craun E, Wong M. C-33Using Executive Functioning and Reward Sensitivity to Predict Alcohol Use in Students that Varied as a Function of Parental Alcohol Misuse. Arch Clin Neuropsychol 2017. [DOI: 10.1093/arclin/acx076.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Craun E, Kaplan S, Goode J, Aubuchon-Endsley N, Wong M. C-24The Association Between Neurocognitive Functioning of Inmates and the Frequency of Criminal Behavior. Arch Clin Neuropsychol 2017. [DOI: 10.1093/arclin/acx076.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shiraz F, Aw S, Koh G, Wong M, Vrijhoef H, Harding S, Yu Y, Hildon Z. EXPLORING PROCESSES OF ADAPTATION FOR SUCCESSFUL AGING: LIVED EXPERIENCES OF OLDER SINGAPOREAN ADULTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Itchins M, Arena J, Nahm CB, Rabindran J, Kim S, Gibbs E, Bergamin S, Chua TC, Gill AJ, Maher R, Diakos C, Wong M, Mittal A, Hruby G, Kneebone A, Pavlakis N, Samra J, Clarke S. Retrospective cohort analysis of neoadjuvant treatment and survival in resectable and borderline resectable pancreatic ductal adenocarcinoma in a high volume referral centre. Eur J Surg Oncol 2017; 43:1711-1717. [PMID: 28688722 DOI: 10.1016/j.ejso.2017.06.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/28/2017] [Accepted: 06/09/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is a deadly disease. Neoadjuvant therapy (NA) with chemotherapy (NAC) and radiotherapy (RT) prior to surgery provides promise. In the absence of prospective data, well annotated clinical data from high-volume units may provide pilot data for randomised trials. METHODS Medical records from a tertiary hospital in Sydney, Australia, were analysed to identify all patients with resectable or borderline resectable PDAC. Data regarding treatment, toxicity and survival were collected. RESULTS Between January 1 2010 and April 1 2016, 220 sequential patients were treated: 87 with NA and 133 with upfront operation (UO). Forty-three NA patients (52%) and 5 UO patients (4%) were borderline resectable at diagnosis. Twenty-four borderline patients received NA RT, 22 sequential to NAC. The median overall survival (OS) in the NA group was 25.9 months (mo); 95% CI (21.1-43.0 mo) compared to 26.9 mo (19.7, 32.7) in the UO; HR 0.89; log-ranked p-value = 0.58. Sixty-nine NA patients (79%) were resected, mOS was 29.2 mo (22.27, not reached (NR)). Twenty-two NA (31%) versus 22 UO (17%) were node negative at operation (N0). In those managed with NAC/RT the mOS was 29.0 mo (17.3, NR). There were no post-operative deaths with NA within 90-days and three in the UO arm. DISCUSSION This is a hypothesis generating retrospective review of a selected real-world population in a high-throughput unit. Treatment with NA was well tolerated. The long observed survival in this group may be explained by lymph node sterilisation by NA, and the achievement of R0 resection in a greater proportion of patients.
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Adiwijaya BS, Kim J, Lang I, Csõszi T, Cubillo A, Chen JS, Wong M, Park JO, Kim JS, Rau KM, Melichar B, Gallego JB, Fitzgerald J, Belanger B, Molnar I, Ma WW. Population Pharmacokinetics of Liposomal Irinotecan in Patients With Cancer. Clin Pharmacol Ther 2017; 102:997-1005. [PMID: 28445610 PMCID: PMC5697569 DOI: 10.1002/cpt.720] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 03/29/2017] [Accepted: 04/19/2017] [Indexed: 12/18/2022]
Abstract
Nanoliposomal irinotecan (nal‐IRI) is a liposomal formulation of irinotecan with a longer half‐life (t1/2), higher plasma total irinotecan (tIRI), and lower SN‐38 maximum concentration (Cmax) compared with nonliposomal irinotecan. Population pharmacokinetic (PK) analysis of nal‐IRI was performed for tIRI and total SN‐38 (tSN38) using patient samples from six studies. PK‐safety association was evaluated for neutropenia and diarrhea in 353 patients. PK‐efficacy association was evaluated from a phase III study in pancreatic cancer NAPOLI1. Efficacy was associated with longer duration of unencapsulated SN‐38 (uSN38) above a threshold and higher Cavg of tIRI, tSN38, and uSN38. Neutropenia was associated with uSN38 Cmax and diarrhea with tIRI Cmax. Baseline predictive factors were race, body surface area, and bilirubin. Analysis identified PK factors associated with efficacy, safety, and predictive baseline factors. The results support the benefit of nal‐IRI dose of 70 mg/m2 (free‐base; equivalent to 80 mg/m2 salt base) Q2W over 100 mg/m2 Q3W.
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Chung VC, Wong SY, Kung K, Zee CY, Leung WN, Chong KC, Wong M, Wong C, Griffiths SM. Electroacupuncture and wrist splinting for carpal tunnel syndrome: a randomised trial. Hong Kong Med J 2017; 23 Suppl 2:28-31. [PMID: 29938668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
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Lemay MS, Wong M. 1101 EMOTION REGULATION AND AFFECT MEDIATE THE RELATIONSHIP BETWEEN INSOMNIA SYMPTOM SEVERITY AND MENTAL HEALTH IN A NON CLINICAL POPULATION. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.1100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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83
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Wong M, LAU K, Chung K, Rusak B, LAU E. 1091 YOUTH’S BEDTIME REGULARITY MEDIATES THE ASSOCIATION OF DEPRESSION AND ANXIETY WITH NEGATIVE ATTENTION BIAS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.1090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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84
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Wong M, Tseng C, Wing Y, Rusak B, Lee T, LAU E. 0231 THE ASSOCIATION OF SLEEP PATTERNS WITH RISK-RELATED DECISION-MAKING AND PLANNING. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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85
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Pereira N, Valero MJ, Wong M, Kushwaha S, Smith B, Kremers W, Gandhi M, Richard D. De Novo Donor Specific Antibodies (dnDSA) Is Associated with Cardiac Allograft Hypertrophy After Heart Transplantation (HT). J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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86
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Koshy A, Sajeev J, Pham C, Wong M, Cooray S, Khavar Y, Hamer A, Rajakariar K, Cooke J, Roberts L, Teh A. Point-of-Care Utilisation of Single Lead Smartphone Electrocardiogram in Screening for Arrhythmias: PULSE Trial. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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87
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Koshy A, Sajeev J, Zureik M, Rajakariar K, Street M, Cosgrave N, Wong M, Hamer A, Cooke J, Roberts L, Teh A. Heart Rate Assessment by Smart Watch: Utility or Futility? Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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88
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Koshy A, Sajeev J, Rajakariar K, Zureik M, Street M, Cosgrave N, Wong M, Roberts L, Cooke J, Teh A. Vital Signs Measured by Photoplethysmography Underestimates Heart Rate in Atrial Fibrillation and Tachycardia. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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89
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Chen Y, Du W, Shen G, Zhuo S, Zhu X, Shen H, Huang Y, Su S, Lin N, Pei L, Zheng X, Wu J, Duan Y, Wang X, Liu W, Wong M, Tao S. Household air pollution and personal exposure to nitrated and oxygenated polycyclic aromatics (PAHs) in rural households: Influence of household cooking energies. INDOOR AIR 2017; 27:169-178. [PMID: 27008622 DOI: 10.1111/ina.12300] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 03/15/2016] [Indexed: 05/22/2023]
Abstract
Residential solid fuels are widely consumed in rural China, contributing to severe household air pollution for many products of incomplete combustion, such as polycyclic aromatic hydrocarbons (PAHs) and their polar derivatives. In this study, concentrations of nitrated and oxygenated PAH derivatives (nPAHs and oPAHs) for household and personal air were measured and analyzed for influencing factors like smoking and cooking energy type. Concentrations of nPAHs and oPAHs in kitchens were higher than those in living rooms and in outdoor air. Exposure levels measured by personal samplers were lower than levels in indoor air, but higher than outdoor air levels. With increasing molecular weight, individual compounds tended to be more commonly partitioned to particulate matter (PM); moreover, higher molecular weight nPAHs and oPAHs were preferentially found in finer particles, suggesting a potential for increased health risks. Smoking behavior raised the concentrations of nPAHs and oPAHs in personal air significantly. People who cooked food also had higher personal exposures. Cooking and smoking have a significant interaction effect on personal exposure. Concentrations in kitchens and personal exposure to nPAHs and oPAHs for households using wood and peat were significantly higher than for those using electricity and liquid petroleum gas (LPG).
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90
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Wong M, Crnobrnja B, Liberale V, Dharmarajah K, Widschwendter M, Jurkovic D. The natural history of endometrial polyps. Hum Reprod 2016; 32:340-345. [PMID: 27994000 DOI: 10.1093/humrep/dew307] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/31/2016] [Accepted: 11/05/2016] [Indexed: 01/14/2023] Open
Abstract
STUDY QUESTION What is the natural history of endometrial polyps in women who are managed expectantly? SUMMARY ANSWER The growth rates of expectantly managed polyps vary considerably and cannot be accurately predicted. WHAT IS KNOWN ALREADY The majority of polyps detected on ultrasound are treated surgically, and therefore little is known about their natural history. Some polyps have been reported to regress spontaneously without the need for treatment; however, the factors predictive of regression are unknown. STUDY DESIGN, SIZE, DURATION This was a retrospective cohort study conducted at the Department of Gynaecology, University College London Hospitals. We searched our ultrasound clinic database between July 1997 and September 2015, to identify women aged 18 years or older with endometrial polyps that were managed expectantly for ≥6 months. All women attended for a minimum of two ultrasound scans. PARTICIPANTS/MATERIALS, SETTING, METHODS A single expert operator performed all ultrasound scans. Those with <6-month follow-up and those who were taking hormonal contraception, HRT or tamoxifen were excluded from the study. The mean diameter of each polyp was calculated from the measurements in three perpendicular planes. The polyp growth rate was expressed as annual percentage change in the mean diameter. Non-parametric tests and the Fisher's exact test were used to compare differences in polyp mean diameters and growth rates between women of different demographic characteristics. To correct for multiple significance testing, we used the Bonferroni method, giving the level of probability at which findings were considered significant as P < 0.0029 (as 17 tests were undertaken). MAIN RESULTS AND THE ROLE OF CHANCE We included 112 women with endometrial polyps, which were expectantly managed over a median period of 22.5 months (range, 6-136). The annual endometrial polyp growth rate varied with a median of 1.0% (interquartile range, -6.5 to 14.3). There was no association between women's demographic characteristics or polyps' morphology and their growth rates. Eleven out of 75 (15% (95% CI, 6.9%-23.1%)) women who initially did not have abnormal uterine bleeding subsequently developed abnormal bleeding during the follow-up period. Polyp growth rate was not associated with the subsequent development of abnormal uterine bleeding (P = 0.397). Seven out of 112 (6.3% (95% CI, 1.8%-10.8%)) women had complete regression of their polyps without treatment during a median follow-up period of 28 months (range, 9-56). Spontaneous regression appeared to occur more frequently in premenopausal women (P = 0.016) and in those who presented with abnormal uterine bleeding at diagnosis (P = 0.004); however, the differences did not reach statistical significance after correction for multiple comparisons. LIMITATIONS, REASONS FOR CAUTION This study was retrospective and therefore may be prone to selection and information biases. The lack of histological confirmation on all ultrasound diagnoses may also be considered as a limitation. WIDER IMPLICATIONS OF THE FINDINGS Women should be advised that the growth pattern of an individual polyp cannot be accurately predicted; however, a small proportion of polyps do regress spontaneously. There was no correlation between polyps' growth rate and the subsequent development of abnormal uterine bleeding. In view of that, routine monitoring of asymptomatic polyps by ultrasound is not helpful and encouraging women to report clinical symptoms is more useful in deciding whether treatment is required. In contrast to previous studies, we found that polyps may regress more frequently in premenopausal women and in those who presented with abnormal uterine bleeding; a larger sample size would give us greater power to detect a difference in these subgroups of women. STUDY FUNDING/COMPETING INTERESTS No study funding was received and no competing interests are present. TRIAL REGISTRATION NUMBER N/A.
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91
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Lo K, Wong M, Khalechelvam P, Tam W. Waist-to-height ratio, body mass index and waist circumference for screening paediatric cardio-metabolic risk factors: a meta-analysis. Obes Rev 2016; 17:1258-1275. [PMID: 27452904 DOI: 10.1111/obr.12456] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 06/17/2016] [Accepted: 06/29/2016] [Indexed: 02/01/2023]
Abstract
Waist-to-height ratio (WHtR) is superior to body mass index and waist circumference for measuring adult cardio-metabolic risk factors. However, there is no meta-analysis to evaluate its discriminatory power in children and adolescents. A meta-analysis was conducted using multiple databases, including Embase and Medline. Studies were included that utilized receiver-operating characteristics curve analysis and published area under the receiver-operating characteristics curves (AUC) for adiposity indicators with hyperglycaemia, elevated blood pressure, dyslipidemia, metabolic syndrome and other cardio-metabolic outcomes. Thirty-four studies met the inclusion criteria. AUC values were extracted and pooled using a random-effects model and were weighted using the inverse variance method. The mean AUC values for each index were greater than 0.6 for most outcomes including hypertension. The values were the highest when screening for metabolic syndrome (AUC > 0.8). WHtR did not have significantly better screening power than other two indexes in most outcomes, except for elevated triglycerides when compared with body mass index and high metabolic risk score when compared with waist circumference. Although not being superior in discriminatory power, WHtR is convenient in terms of measurement and interpretation, which is advantageous in practice and allows for the quick identification of children with cardio-metabolic risk factors at an early age.
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Tashani M, Alfelali M, Barasheed O, Alqahtani AS, Heron L, Wong M, Rashid H, Booy R. Effect of Tdap when administered before, with or after the 13-valent pneumococcal conjugate vaccine (coadministered with the quadrivalent meningococcal conjugate vaccine) in adults: A randomised controlled trial. Vaccine 2016; 34:5929-5937. [PMID: 27780630 DOI: 10.1016/j.vaccine.2016.10.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/05/2016] [Accepted: 10/06/2016] [Indexed: 01/07/2023]
Abstract
Sequential or co-administration of vaccines has potential to alter the immune response to any of the antigens. Existing literature suggests that prior immunisation of tetanus/diphtheria-containing vaccines can either enhance or suppress immune response to conjugate pneumococcal or meningococcal vaccines. We examined this interaction among adult Australian travellers before attending the Hajj pilgrimage 2014. We also investigated tolerability of these vaccines separately and concomitantly. We randomly assigned each participant to one of three vaccination schedules. Group A received adult tetanus, diphtheria and acellular pertussis vaccine (Tdap) 3-4weeks before receiving CRM197-conjugated 13-valent pneumococcal vaccine (PCV13) and CRM197-conjugated quadrivalent meningococcal vaccine (MCV4). Group B received all three vaccines on one day. Group C received PCV13 and MCV4 3-4weeks before Tdap. Blood samples collected at baseline, each vaccination visit and 3-4weeks after vaccination were tested using the pneumococcal opsonophagocytic assay (OPA) and by ELISA for diphtheria and tetanus antibodies. Funding for meningococcal serology was not available. Participants completed symptom diaries after each vaccination. A total of 111 participants aged 18-64 (median 40) years were recruited. No statistically significant difference was detected across the three groups in achieving OPA titre ⩾1:8 post vaccination. However, compared to other groups, Group A had a statistically significant lower number of subjects achieving ⩾4-fold rise in serotype 3, and also significantly lower geometric mean titres (GMTs) to six (of 13) pneumococcal serotypes (3, 5, 18C, 4, 19A and 9V). Group C (given prior PCV13 and MVC4) had statistically significant higher pre-Tdap geometric mean concentration (GMC) of anti-diphtheria IgG; however, there was no difference across the three groups following Tdap. Anti-tetanus IgG GMCs were similar across the groups before and after Tdap. No serious adverse events were reported. In conclusion, Tdap vaccination 3-4weeks before concomitant administration of PCV13 and MCV4 significantly reduced the antibody response to six of the 13 pneumococcal serotypes in adults. The trial is registered at the Australian New Zealand Clinical Trials Registry (ANZCTR): ACTRN12613000536763.
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Li PK, Lin CK, Lam PK, Szeto CC, Lau JT, Cheung L, Wong M, Chan AY, Ko WM. Attitudes about Organ and Tissue Donation among the General Public and Blood Donors in Hong Kong. Prog Transplant 2016; 11:98-103. [PMID: 11871053 DOI: 10.1177/152692480101100204] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Context The cadaveric organ and tissue donation rate in Hong Kong is not satisfactory; 1 million blood donors are registered and more than 300 000 are active. However, the current attitudes toward organ and tissue donation in the general public and blood donors of Hong Kong are unknown. Methods Random general public (n = 1018) and blood donors (n = 1227) of Chinese origin, with age ranging from 16 to 60 years, were interviewed using a standard verified questionnaire that examines attitudes and knowledge of organ and tissue donation. Results The mean age of the general public and blood donors were 32.6 and 28.9 years, respectively. Of the general public, 44.4% were men and among blood donors, 60% were men. About 56% of both groups thought that organ donation is an obligation of citizens. Blood donors were more aware than the general public about the types of organs that can be donated. When compared with the general public, a significantly higher percentage of blood donors were willing to donate their organs (81% vs 53%), had heard about organ donation cards (98.3% vs 89.5%), and had signed the cards (49.9% vs 22.6%). About 70% of both groups who had signed a card were carrying it. Thirty-nine percent of the general public and 17% of blood donors had not decided whether they would donate. For blood donors, 49.7% were willing to donate their relatives' organs, compared with 41.8% of the general public. Most individuals in both groups would not object to their relatives' decision to donate. About two thirds of individuals in both groups disagreed with the concept of an opt-out law, though only 20% of the general public and 14.4% of blood donors would refuse donation if an opt-out law were in practice. Conclusions This study shows that blood donors have better knowledge of organ donation and are more willing to donate their organs and sign an organ donation card than the general public. However, a substantial proportion of blood donors have not signed a donor card. It would be useful to design promotion programs to facilitate blood donors' participation in organ donation.
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Bian S, Routman D, Liu J, Yang D, Groshen S, Zada G, Trakul N, Wong M, Yu C, Chang E. Prognostic Factors for Melanoma Brain Metastases Treated With Stereotactic Radiosurgery (SRS). Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Craun E, Mahoney C, Wgemer S, Wong M. Neuropsychiatric Disorders-3The Intergenerational Effects of Alcoholism on Neurocognitive Functioning of Children of Alcoholics versus Healthy Controls. Arch Clin Neuropsychol 2016. [DOI: 10.1093/arclin/acw042.23] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shatzkes DR, Ginsberg LE, Wong M, Aiken AH, Branstetter BF, Michel MA, Aygun N. Imaging Appearance of SMARCB1 (INI1)-Deficient Sinonasal Carcinoma: A Newly Described Sinonasal Malignancy. AJNR Am J Neuroradiol 2016; 37:1925-1929. [PMID: 27390322 DOI: 10.3174/ajnr.a4841] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 04/22/2016] [Indexed: 11/07/2022]
Abstract
SMARCB1 (INI1)-deficient sinonasal carcinomas were first described in 2014, and this series of 17 cases represents the first imaging description. This tumor is part of a larger group of SMARCB1-deficient neoplasms, characterized by aggressive behavior and a rhabdoid cytopathologic appearance, that affect multiple anatomic sites. Clinical and imaging features overlap considerably with other aggressive sinonasal malignancies such as sinonasal undifferentiated carcinoma, which represents a common initial pathologic diagnosis in this entity. SMARCB1 (INI1)-deficient sinonasal tumors occurred most frequently in the nasoethmoidal region with invasion of the adjacent orbit and anterior cranial fossa. Avid contrast enhancement, intermediate to low T2 signal, and FDG avidity were frequent imaging features. Approximately half of the lesions demonstrated calcification, some with an unusual "hair on end" appearance, suggesting aggressive periosteal reaction.
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Abstract
Human papillomaviruses (HPVs) types 6 and 11 are usually associated with benign genital condylomata, but here we describe an extreme case of verrucous carcinoma associated with HPV 6 in a patient too embarrassed to seek early medical advice.
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Leung R, Lee V, Cheung S, Lee K, Law G, Wong M, Chan M, Mun T. SU-F-T-643: Feasibility of Performing Patient Specific VMAT QA On Single Linac for Plans Treated in Beam-Matched Elekta Agility Linacs. Med Phys 2016. [DOI: 10.1118/1.4956828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chan M, Lee V, Wong M, Leung R, Law G, Lee K, Cheung S, Tung S. SU-F-T-16: Experimental Determination of Ionization Chamber Correction Factors for In-Phantom Measurements of Reference Air Kerma Rate and Absorbed Water Dose Rate of Brachytherapy 192Ir Source. Med Phys 2016. [DOI: 10.1118/1.4956150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Leung K, Wong M, Ng Y, Lee S, Ming Chun Chau R, Lee F. TU-H-CAMPUS-IeP1-03: Comparison of Monte Carlo Simulation and Conversion Factor Based Method On Estimation of Effective Dose in Pediatric Patients Undergoing Interventional Cardiac Procedures. Med Phys 2016. [DOI: 10.1118/1.4957666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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