33 results on '"Wallace D"'
Search Results
2. Centralization and prospective audit of cystectomy are necessary: a commentary on the case for centralization, supported by a contemporary series utilizing the ANZUP cystectomy database.
- Author
-
Viswambaram, Pravin, McCombie, Steve P., Hawks, Cynthia, Wallace, D. Michael A., Sengupta, Shomik, and Hayne, Dickon
- Subjects
DATABASES ,CYSTECTOMY ,OVERALL survival - Abstract
Bladder cancer (BC) outcomes are unacceptably poor. In Australia, BC survival is actually deteriorating. There is an urgent need to improve outcomes in BC patients, which requires a multipronged approach. One area deserving closer scrutiny is radical cystectomy. Audit is necessary to identify areas for improvement and without it, outcomes remain unknown. Evidence convincingly shows high‐volume surgeons and centers improve cystectomy outcomes including overall survival, yet centralization has still not occurred. The Australia and New Zealand Urogenital and Prostate (ANZUP) Cancer Trials Group cystectomy database has been established to facilitate cystectomy audit in Australia and New Zealand. We present initial data from the ANZUP cystectomy database from a single high‐volume center, discuss the benefits of centralization and its challenges in the Asia‐Pacific context. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
3. Eye in the sky: Understanding the mental health of unmanned aerial vehicle operators.
- Author
-
Wallace, D. and Costello, J.
- Subjects
- *
ETHICS , *JOB stress , *MENTAL health , *PERSONNEL management , *POST-traumatic stress disorder , *PSYCHOLOGY of military personnel - Abstract
Background: Recent conflicts in the Middle East have seen rapid developments in the use of unmanned aerial vehicles (UAV). The Australian Government plans to acquire a number of UAVs to perform a range of operations. Purpose: To determine whether UAV operators are exposed to greater or special risks to their mental health than other combatants. Method: A non-systematic, narrative literature search was undertaken into the mental health of UAV operators. Results: The adverse effect of occupational stressors, such as long working hours, on well-being and mental health outcomes emerged strongly. Prevalence rates of clinically significant symptoms of PTSD (Post Traumatic Stress Disorder) for UAV operators were found to be low, ranging between 2 - 5%. Conclusion: These outcomes were consistent with occupational stressors found in the military context and previous findings on other military personnel with low combat exposure. This review is a first step towards establishing an evidence base to inform the management of mental health problems in UAV operators. [ABSTRACT FROM AUTHOR]
- Published
- 2017
4. The conservative management of renal trauma: a literature review and practical clinical guideline from Australia and New Zealand.
- Author
-
McCombie, Steve P., Thyer, Isaac, Corcoran, Niall M., Rowling, Christopher, Dyer, John, Le Roux, Anton, Kuan, Melvyn, Wallace, D. Michael A., and Hayne, Dickon
- Subjects
KIDNEY diseases ,UROLOGISTS ,RADIOLOGISTS ,ANTIBIOTICS - Abstract
Objective To review the literature and make practical recommendations regarding the conservative management of renal trauma., Patients and Methods Relevant articles and guidelines published between 1980 and 2014 were reviewed., Graded recommendations were constructed by a multi-disciplinary panel consisting of urologists, radiologists, and infectious disease physicians., These recommendations underwent formal review and debate at the Western Australian USANZ 2013 state conference, and were presented at the USANZ 2014 annual scientific meeting., Results The literature on the conservative management of renal trauma is reviewed within the framework of the American Association for the Surgery of Trauma ( AAST) kidney injury severity scale., Graded recommendations are made regarding several key topics including: imaging, inpatient management, antibiotics, return to activity, and follow-up., Grade IV injuries and intraoperative consults are examined separately in view of the difficulties these groups cause in making appropriate treatment decisions., Conclusion A practical clinical guideline is provided regarding the conservative management of renal trauma. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
5. 'One stop' haematuria clinic in Fremantle Hospital, Western Australia: a report of the first 500 patients.
- Author
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Ooi, Wei Ling, Lee, Fran, Wallace, D. Michael A., and Hayne, Dickon
- Subjects
HEMATURIA ,URINARY organ diseases ,PUBLIC hospitals ,INCURABLE diseases - Abstract
What's known on the subject? and What does the study add? Haematuria is a symptom of urologic cancer particularly bladder cancer and timely diagnosis can prevent disease from progression to a more advanced or incurable stage. The 'One Stop' Haematuria clinic is the first rapid assessment clinic for haematuria in a public hospital in Western Australia. The results from this study have confirmed that it is an efficient and effective model in the streamlined care of patients with haematuria and provides evidence to support a more widespread adoption of this model of care. OBJECTIVE [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
6. Evidence of genetic heterogeneity in Huntington's chorea.
- Author
-
Wallace, D. C. and Hall, A. C.
- Subjects
AGE distribution ,AGGRESSION (Psychology) ,ALCOHOLISM ,ALLELES ,ANALYSIS of variance ,FAMILIES ,GENEALOGY ,GENETIC techniques ,HUNTINGTON disease ,MENTAL illness ,GENETIC mutation ,PERSONALITY disorders ,SEX distribution ,SOCIAL classes ,SOCIAL disabilities ,BEHAVIOR disorders ,DISEASE complications - Abstract
In an extensive study of Huntington's chorea in Queensland evidence was found to support an old observation that the magnitude of the variation in the symptom complex of the disease between different families is sufficient to suggest that there may be more than one form of Huntington's chorea allele present in the community. Analysis of data concerning age at onset indicates that at least two separate forms of the disorder may exist. [ABSTRACT FROM AUTHOR]
- Published
- 1972
7. Massed v . standard prolonged exposure therapy for PTSD in military personnel and veterans: 12-month follow-up of a non-inferiority randomised controlled trial.
- Author
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Dell L, Sbisa AM, Forbes A, O'Donnell M, Bryant R, Hodson S, Morton D, Battersby M, Tuerk PW, Elliott P, Wallace D, and Forbes D
- Subjects
- Humans, Australia, Follow-Up Studies, Treatment Outcome, Implosive Therapy methods, Military Personnel, Stress Disorders, Post-Traumatic therapy, Veterans
- Abstract
Background: The utilisation of massed therapy for treating posttraumatic stress disorder (PTSD) is gaining strength, especially prolonged exposure. However, it is unknown whether massed prolonged exposure (MPE) is non-inferior to standard prolonged exposure (SPE) protocols in the long term. The current study aimed to assess whether MPE was non-inferior to SPE at 12 months post-treatment, and to ascertain changes in secondary measure outcomes., Methods: A multi-site non-inferiority randomised controlled trial (RCT) compared SPE with MPE in 12 clinics. The primary outcome was PTSD symptom severity (CAPS-5) at 12 months post-treatment commencement. Secondary outcome measures included symptoms of depression, anxiety, anger, disability, and quality of life at 12 weeks and 12 months post-treatment commencement. Outcome assessors were blinded to treatment allocation. The intention-to-treat sample included 138 Australian military members and veterans and data were analysed for 134 participants (SPE = 71, MPE = 63)., Results: Reductions in PTSD severity were maintained at 12 months and MPE remained non-inferior to SPE. Both treatment groups experienced a reduction in depression, anxiety, anger, and improvements in quality of life at 12 weeks and 12 months post-treatment commencement. Treatment effects for self-reported disability in the SPE group at 12 weeks were not maintained, with neither group registering significant effects at 12 months., Conclusions: The emergence of massed protocols for PTSD is an important advancement. The current study provides RCT evidence for the longevity of MPE treatment gains at 12 months post-treatment commencement and demonstrated non-inferiority to SPE. Promisingly, both treatments also significantly reduced the severity of comorbid symptoms commonly occurring alongside PTSD.
- Published
- 2023
- Full Text
- View/download PDF
8. Australian Defence Force Centre for Mental Health Second Opinion Clinic - first ten years of operation.
- Author
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Wallace D, Meurk C, Moss A, and Heffernan E
- Subjects
- Humans, Mental Health, Australia, Mood Disorders, Military Personnel psychology, Mental Health Services
- Abstract
Objectives: The aim is to report the operation of the Australian Defence Force Centre for Mental Health (ADFCMH) Second Opinion Clinic (SOC) after its first 10 years of operation., Method: Demographic data and clinical data were recorded and analysed for all Australian Defence Force (ADF) personnel ( n =209) seen at the clinic from 2011 to 2021., Results: Assessment at the clinic led to a change in diagnosis from that given at the time of referral in 40.7% ( n =85) of members seen. Of the total members assessed at the SOC, 55.9% ( n =117) had been on an at least one operational deployment. Mood disorders were the most common mental disorders seen among personnel at the SOC., Conclusions: The ADFCMH SOC is a valuable clinical resource supporting ADF health services nationally and provides an example of an effective mental health tertiary referral service., Competing Interests: DisclosureDr Wallace, LTCOL Moss and LTCOL Heffernan are employed by the Australian Defence Force. Dr Meurk declares that there is no conflict of interest. The opinions expressed in this paper are those of the authors and not those of the Australian Defence Force.
- Published
- 2023
- Full Text
- View/download PDF
9. Veteran homelessness in Australia: What do we know? What has been done? What do we need to do?
- Author
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Wallace D, Hoggett K, Cripps S, Hayhurst W, and Klinge N
- Subjects
- United States, Humans, United States Department of Veterans Affairs, Australia, Veterans, Ill-Housed Persons
- Abstract
Objective: We report on the extent of veteran homelessness in Australia, what has already been done to address it and what actions are recommended to further improve the response., Conclusions: Work conducted by not-for-profit organisations and the Department of Veterans' Affairs are outlined with positive prospects for significant coordinated action to further address the situation reported.
- Published
- 2023
- Full Text
- View/download PDF
10. Centralization and prospective audit of cystectomy are necessary: a commentary on the case for centralization, supported by a contemporary series utilizing the ANZUP cystectomy database.
- Author
-
Viswambaram P, McCombie SP, Hawks C, Wallace DMA, Sengupta S, and Hayne D
- Subjects
- Male, Humans, Treatment Outcome, Australia, Prostate, Cystectomy, Urinary Bladder Neoplasms surgery
- Abstract
Bladder cancer (BC) outcomes are unacceptably poor. In Australia, BC survival is actually deteriorating. There is an urgent need to improve outcomes in BC patients, which requires a multipronged approach. One area deserving closer scrutiny is radical cystectomy. Audit is necessary to identify areas for improvement and without it, outcomes remain unknown. Evidence convincingly shows high-volume surgeons and centers improve cystectomy outcomes including overall survival, yet centralization has still not occurred. The Australia and New Zealand Urogenital and Prostate (ANZUP) Cancer Trials Group cystectomy database has been established to facilitate cystectomy audit in Australia and New Zealand. We present initial data from the ANZUP cystectomy database from a single high-volume center, discuss the benefits of centralization and its challenges in the Asia-Pacific context., (© 2022 The Authors. Asia-Pacific Journal of Clinical Oncology published by John Wiley & Sons Australia, Ltd.)
- Published
- 2023
- Full Text
- View/download PDF
11. Australian military and veterans' mental health care: improving assessment of military personnel and veterans.
- Author
-
Wallace D, Lane J, Heffernan K, and Nas Jones C
- Subjects
- Australia, Female, Humans, Quality Improvement, Mental Health statistics & numerical data, Military Personnel psychology, Stress Disorders, Post-Traumatic psychology, Veterans psychology
- Abstract
Objective: To describe key practical knowledge and skill components required for clinicians involved with the assessment of military personnel and veterans., Conclusions: Assessment of military and veterans' mental health issues involves a tailored history-taking process that includes specific aspects of service, transition and reporting requirements. Recommendations for the detailed assessment of military personnel and veterans are provided. Comorbid conditions, chronic pain and the needs of both women and older veterans are also discussed.
- Published
- 2021
- Full Text
- View/download PDF
12. Post-traumatic stress disorder in Australia: 2020.
- Author
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Wallace D
- Subjects
- Australia epidemiology, Guidelines as Topic, Humans, Patient Advocacy, Psychotherapy, Stress Disorders, Post-Traumatic diagnosis, Stress Disorders, Post-Traumatic epidemiology, Stress Disorders, Post-Traumatic therapy
- Published
- 2020
- Full Text
- View/download PDF
13. Keeping military in mind: The Royal Australian & New Zealand College of Psychiatrists' Military and Veterans' Mental Health Network.
- Author
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Wallace D, Meurk C, McKay D, Khoo A, Lane J, and Heffernan E
- Subjects
- Adult, Aged, Australia, Community Networks organization & administration, Female, Humans, Male, Middle Aged, New Zealand, Surveys and Questionnaires, Young Adult, Community Networks statistics & numerical data, Mental Health Services organization & administration, Military Personnel psychology, Psychiatry statistics & numerical data, Veterans psychology
- Abstract
Objective: The objective of this study is to introduce The Royal Australian & New Zealand College of Psychiatrists (RANZCP) Military and Veterans' Mental Health Network (The Network) and profile its inaugural members., Methods: We implemented an online survey of demographic, professional and practice characteristics of network members; self-rated knowledge of military and veterans' mental health; reasons for joining The Network; and suggestions as to how The Network could best support members' needs. Quantitative survey responses were analysed descriptively. Qualitative responses were analysed thematically., Results: Thirty-two out of 60 network members returned the survey. The membership was predominately male and 50 years of age or older. One-half had completed their fellowship or specialty 20 or more years ago. A high level of self-rated knowledge with respect to the assessment and management of current and ex-serving military personnel was reported. Knowledge of the assessment and management of current and ex-serving emergency services personnel was lower., Conclusion: There are RANZCP members with an active interest, expertise and knowledge in the field of military, veterans' and emergency services personnel mental health; this affirms the significant role the RANZCP can play in this area. There is a need to expand, diversify and ensure sustainability of the workforce.
- Published
- 2020
- Full Text
- View/download PDF
14. Australian military and veteran's mental health care part 1: an introduction to cultural essentials for clinicians.
- Author
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Lane J and Wallace D
- Subjects
- Australia, Humans, Cultural Competency organization & administration, Health Knowledge, Attitudes, Practice, Mental Health Services organization & administration, Military Personnel psychology, Veterans psychology
- Abstract
Objective: This article aims to define the cultural specificity of Australian military and veterans, and introduce some of the essential clinician knowledge, skills and attitudes required for effective cultural competence in the management of mental health (MH) conditions in this population., Conclusion: Military culture has the defining characteristics of the military as an organisation with a formal structure, as a cultural group governed by norms and shared values, and as a social group that provides people with identities. Key requirements for cultural competence introduced here are basic knowledge of the military structure, norms and identity; clinical skills including basic assessment and awareness of the commonly occurring MH disorders; and an exploration of attitudes of both the clinician and the military or veteran patient. Further research is needed, particularly in terms of assessing clinician's cultural competence.
- Published
- 2020
- Full Text
- View/download PDF
15. Telepsychiatry in the Australian Defence Force: a success story.
- Author
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Wallace D and Hodges S
- Subjects
- Australia, Humans, Military Personnel statistics & numerical data, Psychiatry statistics & numerical data, Telemedicine statistics & numerical data, Videoconferencing statistics & numerical data
- Published
- 2018
- Full Text
- View/download PDF
16. Lot-to-lot consistency of a tetravalent dengue vaccine in healthy adults in Australia: a randomised study.
- Author
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Torresi J, Heron LG, Qiao M, Marjason J, Chambonneau L, Bouckenooghe A, Boaz M, van der Vliet D, Wallace D, Hutagalung Y, Nissen MD, and Richmond PC
- Subjects
- Adolescent, Adult, Antibodies, Neutralizing blood, Antibodies, Viral blood, Australia, Dengue Vaccines administration & dosage, Dengue Vaccines standards, Female, Healthy Volunteers, Humans, Injections, Subcutaneous, Male, Middle Aged, Placebos administration & dosage, Vaccines, Attenuated administration & dosage, Vaccines, Attenuated adverse effects, Vaccines, Attenuated immunology, Vaccines, Attenuated standards, Young Adult, Dengue prevention & control, Dengue Vaccines adverse effects, Dengue Vaccines immunology
- Abstract
Background: The recombinant yellow fever-17D-dengue virus, live, attenuated, tetravalent dengue vaccine (CYD-TDV) has undergone extensive clinical trials. Here safety and consistency of immunogenicity of phase III manufacturing lots of CYD-TDV were evaluated and compared with a phase II lot and placebo in a dengue-naïve population., Methods: Healthy 18-60 year-olds were randomly assigned in a 3:3:3:3:1 ratio to receive three subcutaneous doses of either CYD-TDV from any one of three phase III lots or a phase II lot, or placebo, respectively in a 0, 6, 12 month dosing schedule. Neutralising antibody geometric mean titres (PRNT50 GMTs) for each of the four dengue serotypes were compared in sera collected 28 days after the third vaccination-equivalence among lots was demonstrated if the lower and upper limits of the two-sided 95% CIs of the GMT ratio were ≥0.5 and ≤2.0, respectively., Results: 712 participants received vaccine or placebo and 614 (86%) completed the study; 17 (2.4%) participants withdrew after adverse events. Equivalence of phase III lots was demonstrated for 11 of 12 pairwise comparisons. One of three comparisons for serotype 2 was not statistically equivalent. GMTs for serotype 2 in phase III lots were close to each other (65.9, 44.1 and 58.1, respectively)., Conclusions: Phase III lots can be produced in a consistent manner with predictable immune response and acceptable safety profile similar to previously characterised phase II lots. The phase III lots may be considered as not clinically different as statistical equivalence was shown for serotypes 1, 3 and 4 across the phase III lots. For serotype 2, although equivalence was not shown between two lots, the GMTs observed in the phase III lots were consistently higher than those for the phase II lot. As such, in our view, biological equivalence for all serotypes was demonstrated., (Copyright © 2015 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
17. Telepsychiatry services in the Australian Defence Force.
- Author
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Wallace D and Rayner S
- Subjects
- Australia, Health Services Accessibility organization & administration, Humans, Mental Health Services organization & administration, Military Psychiatry methods, Military Psychiatry organization & administration, Telemedicine organization & administration
- Published
- 2013
- Full Text
- View/download PDF
18. Ferroportin disease due to the A77D mutation in Australia.
- Author
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Subramaniam VN, Wallace DF, Dixon JL, Fletcher LM, and Crawford DH
- Subjects
- Australia, Female, Humans, Male, Pedigree, Cation Transport Proteins genetics, Hemochromatosis genetics, Mutation
- Published
- 2005
- Full Text
- View/download PDF
19. Clinical, histopathologic, and molecular markers of prognosis: toward a new disease risk stratification system for medulloblastoma.
- Author
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Gajjar A, Hernan R, Kocak M, Fuller C, Lee Y, McKinnon PJ, Wallace D, Lau C, Chintagumpala M, Ashley DM, Kellie SJ, Kun L, and Gilbertson RJ
- Subjects
- Adolescent, Australia, Biomarkers, Tumor genetics, Cerebellar Neoplasms genetics, Child, Child, Preschool, Disease-Free Survival, Feasibility Studies, Female, Humans, Infant, Male, Medulloblastoma genetics, Pathology, Clinical organization & administration, Predictive Value of Tests, Prognosis, Proportional Hazards Models, Receptor, ErbB-2 analysis, Risk Assessment, Risk Factors, Specimen Handling, Survival Analysis, United States, Biomarkers, Tumor analysis, Cerebellar Neoplasms pathology, Medulloblastoma pathology
- Abstract
Purpose: To assess the feasibility of performing central molecular analyses of fresh medulloblastomas obtained from multiple institutions and using these data to identify prognostic markers for contemporaneously treated patients., Materials and Methods: Ninety-seven samples of medulloblastoma were collected. Tumor content in samples was judged by frozen section review. Tumor ERBB2 protein and MYCC, MYCN, and TRKC mRNA levels were measured blind to clinical details using Western blotting and real-time polymerase chain reaction, respectively. Histopathologic and clinical review of each case was also performed. All data were subjected to independent statistical analysis., Results: Sample acquisition and analysis times ranged from 3 to 6 days. Eighty-six samples contained sufficient tumor for analysis, including 38 classic, 30 nodular desmoplastic, and 18 large-cell anaplastic (LCA) medulloblastomas. Protein and mRNA were extracted from 81 and 49 tumors, respectively. ERBB2 was detected in 40% (n=32 of 81) of tumors, most frequently in LCA disease (P=.005), and was independently associated with a poor prognosis (P=.031). A combination of clinical characteristics and ERBB2 expression provided a highly accurate means of discriminating disease risk. One hundred percent (n=26) of children with clinical average-risk, ERBB2-negative disease were alive at 5 years, with a median follow-up of 5.6 years, compared with only 54% for children with average-risk, ERBB2-positive tumors (n=13; P=.0001). TRKC, MYCC, and MYCN expression and histopathologic subtype were not associated with prognosis in this study., Conclusion: Central and rapid molecular analysis of frozen medulloblastomas collected from multiple institutions is feasible. ERBB2 expression and clinical risk factors together constitute a highly accurate disease risk stratification tool.
- Published
- 2004
- Full Text
- View/download PDF
20. The surgeon and casemix.
- Author
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Hart JA and Wallace D
- Subjects
- Australia, Hospitals, Public economics, Humans, Length of Stay economics, Diagnosis-Related Groups economics, General Surgery economics, Surgery Department, Hospital economics
- Abstract
Casemix funding has markedly increased surgeons' awareness of the economies of the activities they undertake. Surgery has become a major focus at all large public hospitals, because of its high earning potential, and this pressure to maximise funding could influence surgical practice. Casemix funding's emphasis on length of hospital stay has encouraged forward planning for earlier discharge after surgical procedures. Patients are now assessed in pre-admission clinics, educated about their condition and their hospital stay, and a plan formulated for their discharge and rehabilitation. Funding for major surgical procedures of long duration in patients with complex conditions should reflect the higher level of resource utilisation. Tertiary referral centres, because of their commitment to training and research and their more severely ill patient population, are less cost-effective and require funding to ensure their viability. The improved information that casemix generates should be used to evaluate outcomes and improve patient care; efficiency must not take precedence over quality of care and compassion.
- Published
- 1998
- Full Text
- View/download PDF
21. Neo-adjuvant (pre-emptive) cisplatin therapy in invasive transitional cell carcinoma of the bladder.
- Author
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Wallace DM, Raghavan D, Kelly KA, Sandeman TF, Conn IG, Teriana N, Dunn J, Boulas J, and Latief T
- Subjects
- Aged, Australia, Carcinoma, Transitional Cell radiotherapy, Cisplatin administration & dosage, Cisplatin adverse effects, Combined Modality Therapy, England, Female, Humans, Infusions, Intravenous, Male, Prognosis, Urinary Bladder Neoplasms radiotherapy, Carcinoma, Transitional Cell drug therapy, Cisplatin therapeutic use, Urinary Bladder Neoplasms drug therapy
- Abstract
Following 2 pilot studies which showed 57 and 61% response rates to intravenous cisplatin for transitional cell carcinoma of the bladder prior to definitive treatment, the West Midlands Urological Research Group (WMURG) and the Australian Bladder Cancer Study Group (ABCSG) independently began randomised trials to test the survival benefit of neo-adjuvant intravenous cisplatin prior to radiotherapy in T2-T4 M0 transitional cell carcinoma of the bladder. Both trials failed to recruit their target numbers of 250 patients in the West Midlands and 320 in Australia. Since they had similar treatment protocols and eligibility criteria, they were combined in an overview analysis, achieving a total number of 255 patients. Each treatment group was compared with its own control group and the differences were pooled to give an overall result. There was no difference in survival between treated and control patients. The odds ratio was 1.13 with the control groups faring marginally better than the chemotherapy groups. Even with 255 patients the 95% confidence interval of the odds ratio was wide (0.80-1.57). Although there is no clear evidence of a clinically worthwhile benefit from neo-adjuvant cisplatin, this approach must be tested in a larger study using combination treatments with greater activity in metastatic disease.
- Published
- 1991
- Full Text
- View/download PDF
22. A linkage study of the loci for Huntington's disease and some common polymorphic markers.
- Author
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Brackenridge CJ, Case J, Chiu E, Propert DN, Teltscher B, and Wallace DC
- Subjects
- Australia, Blood Group Antigens, Humans, Mathematics, Phenotype, Risk, Genetic Linkage, Huntington Disease genetics, Polymorphism, Genetic
- Abstract
The phenotypic frequencies of 24 polymorphic blood markers in a sample of patients with Huntington's disease (HD) have been compared with those in a sample of healthy Australian volunteers in an effort to detect any associations between HD and the markers concerned. The Rh factor, c, has a significantly lower frequency in the HD sample while ACP1c and Gm1,2 have a significantly higher frequency. The linkage relations of the HD locus have been analysed with respect to the various marker loci concerned. This analysis involved the development of methods to overcome the general lack of genetic data concerning the affected parent and the possibility that presently unaffected offspring may be asymptomatic carriers of the HD gene. The results suggest that close linkage between the HD locus and Fy, ADA, ACP1, Gc or Bg is highly unlikely. They also suggest a low probability of close linkage to ABO, Rh, Jk, Lu, AK1, PGM1 or C3. Positive linkage scores were obtained for P, Hp and Gm. The results are inconclusive for MNSs, K, Le, Se, GPT and Inv. The available data were uninformative for linkage between the HD locus and Co, 6-PGD or E1.
- Published
- 1978
- Full Text
- View/download PDF
23. Continuing education.
- Author
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Wallace DC
- Subjects
- Australia, Humans, Education, Medical, Continuing
- Published
- 1979
- Full Text
- View/download PDF
24. Perhexiline maleate in the treatment of angina pectoris. Five years of personal clinical experience.
- Author
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Wallace DC
- Subjects
- Adrenergic beta-Antagonists therapeutic use, Adult, Aged, Angina Pectoris mortality, Angina Pectoris surgery, Australia, Drug Therapy, Combination, Female, Humans, Male, Middle Aged, Myocardial Infarction etiology, Perhexiline adverse effects, Prognosis, Angina Pectoris drug therapy, Perhexiline therapeutic use, Piperidines therapeutic use
- Abstract
A five-year personal experience of the use of perhexiline maleate (Pexid) in the treatment of severe angina pectoris is presented. Ninety-four patients, all severely incapacitated by cardiac pain, received perhexiline maleate for an average period of 12.2 months. Perhexiline maleate was used either alone or, more commonly, in conjuction with other antianginal therapy, such as beta-adrenergic receptor blocking agents. The results demonstrate that perhexiline maleate is a very effective agent which appears to be safe for long-term usage. Side effects have been frequent, and occasionally bothersome, but all have been transient and dose-dependent. The possibility that the regimens of treatment may materially improve long-term prognosis is raised.
- Published
- 1978
25. X linked hydrocephalus: a survey of a 20 year period in Victoria, Australia.
- Author
-
Halliday J, Chow CW, Wallace D, and Danks DM
- Subjects
- Australia, Female, Fetal Death, Gene Frequency, Genetic Linkage, Humans, Hydrocephalus epidemiology, Infant, Newborn, Male, Pregnancy, Sex Chromosome Aberrations, Hydrocephalus genetics, X Chromosome
- Abstract
This study ascertained 164 males with non-communicating hydrocephalus in live or stillborn patients in Victoria. Australia in 1962 to 1982, after excluding those cases secondary to brain malformations other than aqueduct stenosis. Ascertainment was considered near complete, especially for the period since 1974, but details of the aqueduct pathology were inadequate in half the cases. A total of 91 families was seen to record detailed family information. The overall incidence of primary non-communicating hydrocephalus was estimated to be 0.6 +/- 0.2 per 1000 live and stillbirths, with three-fifths of the cases male. Twelve patients were classified as having definite X linked hydrocephalus and 13 others as probable cases of this condition. Deformities of the thumbs (generally adduction deformity) were present in nearly half of these cases. The pyramids were absent from sections of the medulla whenever these were available. Four of five survivors had signs suggesting pyramidal tract lesions, compared to four of 25 surviving non-X linked cases. The intellectual outcome was notably poorer in the X linked cases. Poor school performance was also described in five of 19 mothers of X linked cases but in only one of 64 mothers of the remaining cases. Familial recurrence in the whole group of patients was almost confined to the X linked families. The exceptions were two families in whom autosomal recessive inheritance is possible. It is important to remember X linked hydrocephalus in genetic counselling. Examination of the thumbs, search for clinical signs of pyramidal tract lesions, and anatomical examination of the pyramids in medullary sections are all important, along with careful questioning for a history of affected maternal relatives. The presence of any of these features is grounds for counseling on the basis of X linked inheritance. An empirical figure was derived to use when counseling about a male with non-communicating hydrocephalus in whom there is no adequate information about the thumbs or the pyramids: a 4% recurrence risk in male sibs and 2% in females.
- Published
- 1986
- Full Text
- View/download PDF
26. The Toowoomba and Goulburn diabetes surveys.
- Author
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Smithurst BA, Wallace DC, and Proust AJ
- Subjects
- Adult, Aged, Australia, Diabetes Mellitus epidemiology, Female, Follow-Up Studies, Glucose Tolerance Test, Humans, Male, Middle Aged, Diabetes Mellitus prevention & control, Mass Screening
- Published
- 1968
- Full Text
- View/download PDF
27. Cerebrovascular disease occurrence in Australia.
- Author
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Wallace DC
- Subjects
- Australia, Humans, Cerebrovascular Disorders epidemiology
- Published
- 1971
- Full Text
- View/download PDF
28. A study of the natural history of cerebral vascular disease.
- Author
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Wallace DC
- Subjects
- Adult, Aged, Australia, Female, Follow-Up Studies, Humans, Male, Middle Aged, Cerebrovascular Disorders epidemiology
- Published
- 1967
- Full Text
- View/download PDF
29. The natural history of cerebral vascular disease.
- Author
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Wallace DC
- Subjects
- Adult, Age Factors, Aged, Anticoagulants therapeutic use, Attitude of Health Personnel, Australia, Cerebrovascular Disorders mortality, Cerebrovascular Disorders rehabilitation, Female, Humans, Intracranial Embolism and Thrombosis epidemiology, Japan, Male, Mexico, Middle Aged, Myocardial Infarction complications, Population Surveillance, Prognosis, Sex Factors, Subarachnoid Hemorrhage epidemiology, United States, Cerebrovascular Disorders epidemiology
- Published
- 1968
- Full Text
- View/download PDF
30. Huntington's chorea in Queensland. A not uncommon disease.
- Author
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Wallace DC
- Subjects
- Adolescent, Adult, Age Factors, Aged, Alcoholism, Australia, Family, Female, Humans, Huntington Disease diagnosis, Male, Middle Aged, Paraphilic Disorders, Social Behavior Disorders, Socioeconomic Factors, Huntington Disease epidemiology
- Published
- 1972
31. Genetic factor in malignant melanoma.
- Author
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Wallace DC, Exton LA, and McLeod GR
- Subjects
- Adolescent, Adult, Age Factors, Aged, Australia, Child, Female, Humans, Male, Melanoma epidemiology, Middle Aged, Pedigree, Sex Factors, Skin Neoplasms epidemiology, Melanoma genetics, Skin Neoplasms genetics
- Published
- 1971
- Full Text
- View/download PDF
32. Observations upon a predominantly sensory hereditary neuropathy.
- Author
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Wallace DC
- Subjects
- Australia, Climate, Deafness genetics, Foot Diseases, Humans, Lumbosacral Region, Radiography, Syringomyelia genetics, Ulcer
- Published
- 1965
33. Abortion and immigration.
- Author
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Wallace DC
- Subjects
- Australia, Female, Humans, Population Density, Population Growth, Pregnancy, Abortion, Legal, Emigration and Immigration
- Published
- 1971
- Full Text
- View/download PDF
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