14,630 results
Search Results
202. Should I apply to medical school? High school students and barriers to application.
- Author
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Whalen, Desmond, Harris, Chelsea, Harty, Chris, Greene, Alison, Faour, Elizabeth, Thomson, Kalen, and Ravalia, Mohamed
- Subjects
HIGH school students ,MEDICAL personnel ,MEDICAL schools ,STUDY & teaching of medicine ,RURAL health ,RURAL health services ,RURAL population ,STUDENT attitudes ,VOCATIONAL guidance ,SCHOOL admission ,DATA analysis software - Abstract
Copyright of Canadian Journal of Rural Medicine (Joule Inc.) is the property of CMA Impact Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
203. Report of the ombudsman--ethicist, 2002.
- Author
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Dossetor, John B.
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JOURNALISTIC ethics ,PERIODICALS - Abstract
Describes the position and role of ombudsman and ethicist for the "Canadian Medical Association Journal."
- Published
- 2003
204. Misconduct saga rattles bone scientists.
- Author
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Shuchman, Miriam
- Subjects
FALSIFICATION of data ,FRAUD in science ,FEDERAL aid to medical research ,MEDICAL ethics - Abstract
The article reports that the Canadian Institutes of Health Research has found University of Toronto medical school professor Sophie Jamal guilty of a serious breach of federal research rules. An investigation has found that Jamal manipulated trial data to attain better results, presented manipulated data to coinvestigators, and deleted records required for forensic investigation. It looks at the impact of Jamal's misconduct on scientists who study bone health and offers information about Jamal.
- Published
- 2016
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205. A cross-sectional survey on buprenorphine–naloxone practice and attitudes in 22 Canadian emergency physician groups: a cross-sectional survey.
- Author
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Kestler, Andrew, Kaczorowski, Janusz, Dong, Kathryn, Orkin, Aaron M., Daoust, Raoul, Moe, Jessica, Van Pelt, Kelsey, Andolfatto, Gary, Klaiman, Michelle, Yan, Justin, Koh, Justin J., Crowder, Kathryn, Webster, Devon, Atkinson, Paul, Savage, David, Stempien, James, Besserer, Floyd, Wale, Jason, Lam, Alice, and Scheueremeyer, Frank
- Abstract
Background: Buprenorphine–naloxone (BUP) initiation in emergency departments improves follow-up and survival among patients with opioid use disorder. We aimed to assess self-reported BUP-related practices and attitudes among emergency physicians. Methods: We designed a cross-sectional physician survey by adapting a validated questionnaire on opioid harm reduction practices, attitudes and barriers. We recruited physician leads from 6 Canadian provinces to administer surveys to the staff physicians in their emergency department groups between December 2018 and November 2019. We included academic and community non-locum emergency department staff physicians. We excluded responses from emergency department groups with response rates less than 50% to minimize nonresponse bias. Primary (BUP prescribing practices) and secondary (willingness and attitudes) outcomes were analyzed using descriptive statistics. Results: After excluding 1 group for low response (9/26 physicians), 652 of 798 (81.7%) physicians responded from 22 groups serving 34 emergency departments. Among respondents, 64.1% (95% confidence interval [CI] 60.4%–67.8%, emergency department group range 7.1%–100.0%) had prescribed BUP at least once in their career, 38.4% had prescribed it for home initiation and 24.8% prescribed it at least once a month. Overall, 68.9% (95% CI 65.3%–72.4%, emergency department group range 24.1%–97.6%) were willing to administer BUP, 64.2% felt it was a major responsibility and 37.1% felt they understood people who use drugs. Respondents most frequently rated lack of adequate training (58.2%) and lack of time (55.2%) as very important barriers to BUP initiation. Interpretation: Two-thirds of the emergency physicians surveyed prescribed BUP, although only one-quarter did so regularly and one-third prescribed it for home initiation; wide variation between emergency department groups existed. Strategies to increase BUP initiation must address physicians' lack of time and training for BUP initiation and improve their understanding of people who use drugs. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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206. Precaution the key to pandemic protection in emergency departments.
- Author
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Collier, Roger
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COMMUNITY health workers ,PANDEMICS ,HOSPITAL emergency services ,AEROSOLS - Abstract
The article offers information on the precautions which should be taken by health care workers for pandemic protection in emergency departments. A position paper was released by the Quebec Association of Emergency which contains position statements regarding individual staff protection and engineering controls. Some of the positions stated in the paper include, wearing of a mask during aerosol-generating procedures if a patient has a strong cough and usage of postexposure prophylaxis.
- Published
- 2009
207. What paperless office?
- Author
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Martin, Shelley
- Subjects
MEDICAL records ,SURVEYS ,PHYSICIANS - Abstract
Reports that data from the Canadian Medical Association's (CMA) 2002 Physician Resource Questionnaire indicate that only a small percentage of Canadian physicians use electronic media to store active patient records. Percentage which use a combination of paper and electronic media; Number of physicians who claim that improving how patient information is shared is an important or very important potential benefit of electronic health records.
- Published
- 2002
208. The truth about falling coconuts.
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Pinker, Susan
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WOUNDS & injuries ,COCONUT ,HEALTH ,AWARDS - Abstract
Discusses a paper which was published by Dr. Peter Barss called 'Injuries Due to Falling Coconuts,' which received an Ig Nobel Award. Belief of Barss that the subject of falling coconut injuries is serious; Career of Barss in documenting hazards endemic to specific environments; His interest in preventing injury through building safety.
- Published
- 2002
209. Professional stigmatizations.
- Author
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Neilson, Shane
- Subjects
RESIDENTS (Medicine) ,MEDICAL students ,PEOPLE with mental illness ,ROSETTA Stone ,MEDICAL education - Abstract
The article discusses the challenges faced by a medical student and later a physician who has bipolar disorder and autism. The individual recounts experiences of stigma, discrimination, and struggles with the medical education system due to their neurodiversity. Despite facing adversity, the individual eventually finds self-compassion and advocates for greater acceptance and accommodation of non-normative practitioners in the medical field. The article highlights the need for understanding, support, and inclusivity for individuals with disabilities in medical education and practice. [Extracted from the article]
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- 2024
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210. Your digital future awaits.
- Author
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Simpson, Chris
- Subjects
ELECTRONIC health records ,TELEMEDICINE ,MEDICAL care ,MEDICAL technology ,MEDICAL telematics - Abstract
The author discusses how Canadian doctors are increasingly practising in a digital environment. Topics covered include how most Canadian doctors believe that the tools and connectivity provided by electronic medical records (EMRs), digital devices, and telemedicine will increase their productivity and enable them to provide improved care.
- Published
- 2015
211. Do clinicians understand the size of treatment effects? A randomized survey across 8 countries.
- Author
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Johnston, Bradley C., Alonso-Coello, Pablo, Friedrich, Jan O., Mustafa, Reem A., Tikkinen, Kari A. O., Neumann, Ignacio, Vandvik, Per O., Akl, Elie A., da Costa, Bruno R., Adhikari, Neill K., Dalmau, Gemma Mas, Kosunen, Elise, Mustonen, Jukka, Crawford, Mark W., Thabane, Lehana, and Guyatt, Gordon H.
- Subjects
MEDICAL personnel ,META-analysis ,THERAPEUTICS research ,HEALTH outcome assessment ,MEDICAL research evaluation ,COMPARATIVE studies ,INTERNATIONAL relations ,RESEARCH methodology ,MEDICAL cooperation ,READABILITY (Literary style) ,RESEARCH ,STATISTICS ,EVALUATION research ,RANDOMIZED controlled trials ,RELATIVE medical risk ,TREATMENT effectiveness - Abstract
Background: Meta-analyses of continuous outcomes typically provide enough information for decision-makers to evaluate the extent to which chance can explain apparent differences between interventions. The interpretation of the magnitude of these differences - from trivial to large - can, however, be challenging. We investigated clinicians' understanding and perceptions of usefulness of 6 statistical formats for presenting continuous outcomes from meta-analyses (standardized mean difference, minimal important difference units, mean difference in natural units, ratio of means, relative risk and risk difference).Methods: We invited 610 staff and trainees in internal medicine and family medicine programs in 8 countries to participate. Paper-based, self-administered questionnaires presented summary estimates of hypothetical interventions versus placebo for chronic pain. The estimates showed either a small or a large effect for each of the 6 statistical formats for presenting continuous outcomes. Questions addressed participants' understanding of the magnitude of treatment effects and their perception of the usefulness of the presentation format. We randomly assigned participants 1 of 4 versions of the questionnaire, each with a different effect size (large or small) and presentation order for the 6 formats (1 to 6, or 6 to 1).Results: Overall, 531 (87.0%) of the clinicians responded. Respondents best understood risk difference, followed by relative risk and ratio of means. Similarly, they perceived the dichotomous presentation of continuous outcomes (relative risk and risk difference) to be most useful. Presenting results as a standardized mean difference, the longest standing and most widely used approach, was poorly understood and perceived as least useful.Interpretation: None of the presentation formats were well understood or perceived as extremely useful. Clinicians best understood the dichotomous presentations of continuous outcomes and perceived them to be the most useful. Further initiatives to help clinicians better grasp the magnitude of the treatment effect are needed. [ABSTRACT FROM AUTHOR]- Published
- 2016
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212. A proposal for the curriculum and evaluation for training rural family physicians in enhanced surgical skills.
- Author
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Caron, Nadine, Iglesias, Stuart, Friesen, Randall, Berjat, Vanessa, Humber, Nancy, Falk, Ryan, Prins, Mark, Haines, Victoria Vogt, Geller, Brian, Janke, Fred, Woollard, Robert, Batchelor, Bret, Van Bussel, Jared, and Vogt Haines, Victoria
- Subjects
PHYSICIANS ,PHYSICIAN training ,OPERATIVE surgery ,MEDICAL care ,EMERGENCY medicine - Abstract
Summary: Rural western Canada relies heavily on family physicians with enhanced surgical skills (ESS) for surgical services. The recent decision by the College of Family Physicians of Canada (CFPC) to recognize ESS as a "community of practice" section offers a potential home akin to family practice anesthesia and emergency medicine. To our knowledge, however, a skill set for ESS in Canada has never been described formally. In this paper the Curriculum Committee of the National ESS Working Group proposes a generic curriculum for the training and evaluation of the ESS skill set. [ABSTRACT FROM AUTHOR]- Published
- 2015
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- View/download PDF
213. Predicting response to psychiatric surgery: a systematic review of neuroimaging findings.
- Author
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Davidson, Benjamin, Suresh, Hrishikesh, Goubran, Maged, Rabin, Jennifer S., Meng, Ying, Mithani, Karim, Pople, Christopher B., Giacobbe, Peter, Hamani, Clement, and Lipsman, Nir
- Subjects
DIAGNOSTIC imaging ,INFORMATION storage & retrieval systems ,MEDICAL databases ,MEDICAL information storage & retrieval systems ,MEDLINE ,NEURORADIOLOGY ,PSYCHOSURGERY ,SYSTEMATIC reviews ,TREATMENT effectiveness ,PREOPERATIVE period - Abstract
Background: Psychiatric surgery, including deep brain stimulation and stereotactic ablation, is an important treatment option in severe refractory psychiatric illness. Several large trials have demonstrated response rates of approximately 50%, underscoring the need to identify and select responders preoperatively. Recent advances in neuroimaging have brought this possibility into focus. We systematically reviewed the psychiatric surgery neuroimaging literature to assess the current state of evidence for preoperative imaging predictors of response. Methods: We performed this study in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Meta-analysis of Observational Studies in Epidemiology (MOOSE) frameworks, and preregistered it using PROSPERO. We systematically searched the Medline, Embase and Cochrane databases for studies reporting preoperative neuroimaging analyses correlated with clinical outcomes in patients who underwent psychiatric surgery. We recorded and synthesized the methodological details, imaging results and clinical correlations from these studies. Results: After removing duplicates, the search yielded 8388 unique articles, of which 7 met the inclusion criteria. The included articles were published between 2001 and 2018 and reported on the outcomes of 101 unique patients. Of the 6 studies that reported significant findings, all identified clusters of hypermetabolism, hyperconnectivity or increased size in the frontostriatal limbic circuitry. Limitations: The included studies were few and highly varied, spanning 2 decades. Conclusion: Although few studies have analyzed preoperative imaging for predictors of response to psychiatric surgery, we found consistency among the reported results: most studies implicated overactivity in the frontostriatal limbic network as being correlated with clinical response. Larger prospective studies are needed. Registration: www.crd.york.ac.uk/prospero/display_record.php?RecordID=131151. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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214. Morbidity and mortality conferences in general surgery: a narrative systematic review.
- Author
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Slater, Nicholas, Sekhon, Perneet, Bradley, Nori, Shariff, Farhana, Bedford, Julie, Heather Wong, Chieh Jack Chiu, Joos, Emilie, Ball, Chad G., Hameed, Morad, Wong, Heather, and Chiu, Chieh Jack
- Subjects
ORTHOPEDIC surgery ,SYSTEMATIC reviews ,DISEASES ,WORLD health ,MEDICAL errors ,QUALITY assurance - Abstract
Copyright of Canadian Journal of Surgery is the property of CMA Impact Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
215. A primer on rural medical politics. 2: Federal/provincial jurisdictions.
- Author
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MacLellan, Keith
- Subjects
RURAL health ,MEDICAL care - Abstract
Reports the presence of rural generalists in rural health care in Canada. Impact of supporting generalists on the health care system; Problems in the rural health care; Efforts of rural health bureaucracies to address training issues.
- Published
- 2001
216. Online ratings for doctors are flawed, but "not going anywhere".
- Author
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Webster, Paul
- Subjects
CONSUMERS' reviews ,PHYSICIANS ,MEDICAL referrals ,MEDICAL practice ,REFERENCE values ,INTERNET ,MEDICAL quality control ,PATIENT satisfaction ,SOCIAL media - Abstract
The article reflects on the lawsuit filed against Jameda, an online platform with ratings for German physicians, by a dermatologist demanding the removal of references that could injure her reputation. Switzerland-based medical bioethicist Stuart McLennan notes that physicians fear over online ratings may be overblown anyway. It notes a paper by McLennan and his colleagues which concluded that recommendations from friends, family members, and referrals remain more important than online rating.
- Published
- 2018
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217. Author response to: Intraoperative ultrasonic cholangiography for biliary system identification.
- Author
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Chandra, Abhijit
- Subjects
CHOLANGIOGRAPHY ,BILIARY tract ,ULTRASONIC imaging ,ULTRASONICS ,CONTRAST media - Published
- 2018
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218. Recommendations for screening programs for congenital hypothyroidism: Newborn Committee of the American Thyroid Association.
- Published
- 1977
219. Doctors concerned about the environment should look to their own offices first.
- Author
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Hollingworth, Jim
- Published
- 1992
220. Correction to “Navigated and individual α-peak-frequency–guided transcranial magnetic stimulation in male patients with treatment-refractory schizophrenia”.
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- 2024
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221. Association between opioid use disorder and palliative care: a cohort study using linked health administrative data in Ontario, Canada.
- Author
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Lau, Jenny, Scott, Mary M., Everett, Karl, Gomes, Tara, Tanuseputro, Peter, Jennings, Sheila, Bagnarol, Rebecca, Zimmermann, Camilla, and Isenberg, Sarina R.
- Subjects
OPIOID abuse ,PALLIATIVE treatment ,EMERGENCY room visits ,MEDICAL personnel ,COHORT analysis - Abstract
Background: People with opioid use disorder (OUD) are at risk of premature death and can benefit from palliative care. We sought to compare palliative care provision for decedents with and without OUD. Methods: We conducted a cohort study using health administrative databases in Ontario, Canada, to identify people who died between July 1, 2015, and Dec. 31, 2021. The exposure was OUD, defined as having emergency department visits, hospital admissions, or pharmacologic treatments suggestive of OUD within 3 years of death. Our primary outcome was receipt of 1 or more palliative care services during the last 90 days before death. Secondary outcomes included setting, initiation, and intensity of palliative care. We conducted a secondary analysis excluding sudden deaths (e.g., opioid toxicity, injury). Results: Of 679 840 decedents, 11 200 (1.6%) had OUD. Compared with people without OUD, those with OUD died at a younger age and were more likely to live in neighbourhoods with high marginalization indices. We found people with OUD were less likely to receive palliative care at the end of their lives (adjusted relative risk [RR] 0.84, 95% confidence interval [CI] 0.82–0.86), but this difference did not exist after excluding people who died suddenly (adjusted RR 0.99, 95% CI 0.96–1.01). People with OUD were less likely to receive palliative care in clinics and their homes regardless of cause of death. Interpretation: Opioid use disorder can be a chronic, life-limiting illness, and people with OUD are less likely to receive palliative care in communities during the 90 days before death. Health care providers should receive training in palliative care and addiction medicine to support people with OUD. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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222. Leaving emergency departments without completing treatment among First Nations and non–First Nations patients in Alberta: a mixed-methods study.
- Author
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McLane, Patrick, Bill, Lea, Healy, Bonnie, Barnabe, Cheryl, Plume, Tessy Big, Bird, Anne, Colquhoun, Amy, Holroyd, Brian R., Janvier, Kris, Louis, Eunice, Rittenbach, Katherine, Curtin, Kimberley D., Fitzpatrick, Kayla M., Mackey, Leslee, MacLean, Davis, and Rosychuk, Rhonda J.
- Subjects
EMERGENCY room visits ,PATIENTS' attitudes ,PATIENT experience ,HOSPITAL emergency services ,COUNTRIES - Abstract
Background: Our previous research showed that, in Alberta, Canada, a higher proportion of visits to emergency departments and urgent care centres by First Nations patients ended in the patient leaving without being seen or against medical advice, compared with visits by non–First Nations patients. We sought to analyze whether these differences persisted after controlling for patient demographic and visit characteristics, and to explore reasons for leaving care. Methods: We conducted a mixed-methods study, including a population-based retrospective cohort study for the period of April 2012 to March 2017 using provincial administrative data. We used multivariable logistic regression models to control for demographics, visit characteristics, and facility types. We evaluated models for subgroups of visits with pre-selected illnesses. We also conducted qualitative, in-person sharing circles, a focus group, and 1-on-1 telephone interviews with health directors, emergency care providers, and First Nations patients from 2019 to 2022, during which we reviewed the quantitative results of the cohort study and asked participants to comment on them. We descriptively categorized qualitative data related to reasons that First Nations patients leave care. Results: Our quantitative analysis included 11 686 287 emergency department visits, of which 1 099 424 (9.4%) were by First Nations patients. Visits by First Nations patients were more likely to end with them leaving without being seen or against medical advice than those by non–First Nations patients (odds ratio 1.96, 95% confidence interval 1.94–1.98). Factors such as diagnosis, visit acuity, geography, or patient demographics other than First Nations status did not explain this finding. First Nations status was associated with greater odds of leaving without being seen or against medical advice in 9 of 10 disease categories or specific diagnoses. In our qualitative analysis, 64 participants discussed First Nations patients' experiences of racism, stereotyping, communication issues, transportation barriers, long waits, and being made to wait longer than others as reasons for leaving. Interpretation: Emergency department visits by First Nations patients were more likely to end with them leaving without being seen or against medical advice than those by non–First Nations patients. As leaving early may delay needed care or interfere with continuity of care, providers and departments should work with local First Nations to develop and adopt strategies to retain First Nations patients in care. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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223. Characteristics of primary care practices by proportion of patients unvaccinated against SARS-CoV-2: a cross-sectional cohort study.
- Author
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Shuldiner, Jennifer, Green, Michael E., Kiran, Tara, Khan, Shahriar, Frymire, Eliot, Moineddin, Rahim, Kerr, Meghan, Tadrous, Mina, Nowak, Dominik Alex, Kwong, Jeffrey C., Hu, Jia, Witteman, Holly O., Hamilton, Bryn, Bogoch, Isaac, Marshall, Lydia-Joy, Ikura, Sophia, Bar-Ziv, Stacey, Kaplan, David, and Ivers, Noah
- Subjects
PRIMARY care ,VACCINATION status ,VACCINATION ,VACCINATION coverage ,COVID-19 pandemic ,PATIENT-centered medical homes - Abstract
Background: Variations in primary care practices may explain some differences in health outcomes during the COVID-19 pandemic. We sought to evaluate the characteristics of primary care practices by the proportion of patients unvaccinated against SARS-CoV-2. Methods: We conducted a population-based, cross-sectional cohort study using linked administrative data sets in Ontario, Canada. We calculated the percentage of patients unvaccinated against SARS-CoV-2 enrolled with each comprehensive-care family physician, ranked physicians according to the proportion of patients unvaccinated, and identified physicians in the top 10% (v. the other 90%). We compared characteristics of family physicians and their patients in these 2 groups using standardized differences. Results: We analyzed 9060 family physicians with 10 837 909 enrolled patients. Family physicians with the largest proportion (top 10%) of unvaccinated patients (n = 906) were more likely to be male, to have trained outside of Canada, to be older, and to work in an enhanced fee-for-service model than those in the remaining 90%. Vaccine coverage (≥ 2 doses of SARS-CoV-2 vaccine) was 74% among patients of physicians with the largest proportion of unvaccinated patients, compared with 87% in the remaining patient population. Patients in the top 10% group tended to be younger and live in areas with higher levels of ethnic diversity and immigration and lower incomes. Interpretation: Primary care practices with the largest proportion of patients unvaccinated against SARS-CoV-2 served marginalized communities and were less likely to use team-based care models. These findings can guide resource planning and help tailor interventions to integrate public health priorities within primary care practices. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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224. Long-term trends in the work hours of physicians in Canada.
- Author
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Kralj, Boris, Islam, Rabiul, and Sweetman, Arthur
- Abstract
Background: Physician work hours directly influence patient access to health care services and play a vital role in physician human resource planning. We sought to evaluate long-term trends in hours worked by physicians in Canada, overall and by subgroup. Methods: We used Statistics Canada's Labour Force Survey to identify physicians via occupation and industry coding information. We estimated descriptive statistics and performed graphical analysis of the average weekly hours worked by physicians over the 1987–2021 period. Results: Overall, weekly physician work hours remained stable from 1987 until 1997, after which they declined. Average weekly hours decreased by 6.9 hours (p < 0.001), from 52.8 in 1987–1991 to 45.9 in 2017–2021. Among male physicians, work hours declined notably after 1997, while those of female physicians remained relatively stable at around 45 per week. Hours worked by married physicians declined significantly, amounting to 7.4 fewer hours per week (p = 0.001). In contrast, unmarried physicians displayed a statistically insignificant decline of 2.2 hours (p = 0.3). The COVID-19 pandemic was associated with a sharp but brief disruption in weekly hours; by the end of 2020, physicians' work hours had returned to prepandemic levels. Interpretation: These findings may indicate a long-term shift in work preferences among Canadian physicians; male physicians may be seeking a better work–life balance, which, in turn, has narrowed the gap in hours worked by sex, with potential implications for pay equity. Policymakers and planners should carefully consider changes in hours worked, rather than just the total number of physicians, to ensure an accurate evaluation of the physician workforce. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
225. Therapist-guided remote versus in-person cognitive behavioural therapy: a systematic review and meta-analysis of randomized controlled trials.
- Author
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Zandieh, Sara, Abdollahzadeh, Seyedeh Maryam, Sadeghirad, Behnam, Wang, Li, McCabe, Randi E., Yao, Liam, Inness, Briar E., Pathak, Ananya, Couban, Rachel J., Crandon, Holly, Torabiardakani, Kian, Bieling, Peter, and Busse, Jason W.
- Subjects
BEHAVIOR therapy ,COGNITIVE therapy ,MENTAL illness ,RANDOMIZED controlled trials ,ANXIETY disorders ,ALCOHOLISM ,BODY image - Abstract
Background: Cognitive behavioural therapy (CBT) has been shown to be effective for several psychiatric and somatic conditions; however, most randomized controlled trials (RCTs) have administered treatment in person and whether remote delivery is similarly effective remains uncertain. We sought to compare the effectiveness of therapist-guided remote CBT and in-person CBT. Methods: We systematically searched MEDLINE, Embase, PsycINFO, CINAHL, and the Cochrane Central Register of Controlled Trials from inception to July 4, 2023, for RCTs that enrolled adults (aged ≥ 18 yr) presenting with any clinical condition and that randomized participants to either therapist-guided remote CBT (e.g., teleconference, videoconference) or in-person CBT. Paired reviewers assessed risk of bias and extracted data independently and in duplicate. We performed random-effects model meta-analyses to pool patient-important primary outcomes across eligible RCTs as standardized mean differences (SMDs). We used Grading of Recommendations Assessment, Development and Evaluation (GRADE) guidance to assess the certainty of evidence and used the Instrument to Assess the Credibility of Effect Modification Analyses (ICEMAN) to rate the credibility of subgroup effects. Results: We included 54 RCTs that enrolled a total of 5463 patients. Seventeen studies focused on treatment of anxiety and related disorders, 14 on depressive symptoms, 7 on insomnia, 6 on chronic pain or fatigue syndromes, 5 on body image or eating disorders, 3 on tinnitus, 1 on alcohol use disorder, and 1 on mood and anxiety disorders. Moderate-certainty evidence showed little to no difference in the effectiveness of therapist-guided remote and in-person CBT on primary outcomes (SMD −0.02, 95% confidence interval −0.12 to 0.07). Interpretation: Moderate-certainty evidence showed little to no difference in the effectiveness of in-person and therapist-guided remote CBT across a range of mental health and somatic disorders, suggesting potential for the use of therapist-guided remote CBT to facilitate greater access to evidence-based care. Systematic review registration: Open Science Framework (https://osf.io/7asrc) [ABSTRACT FROM AUTHOR]
- Published
- 2024
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226. Intracranial self-stimulation reverses impaired spatial learning and regulates serum microRNA levels in a streptozotocin-induced rat model of Alzheimer disease.
- Author
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Riberas-Sánchez, Andrea, Puig-Parnau, Irene, Vila-Solés, Laia, García-Brito, Soleil, Aldavert-Vera, Laura, Segura-Torres, Pilar, Huguet, Gemma, and Kádár, Elisabet
- Abstract
Background: The assessment of deep brain stimulation (DBS) as a therapeutic alternative for treating Alzheimer disease (AD) is ongoing. We aimed to determine the effects of intracranial self-stimulation at the medial forebrain bundle (MFB-ICSS) on spatial memory, neurodegeneration, and serum expression of microRNAs (miRNAs) in a rat model of sporadic AD created by injection of streptozotocin. We hypothesized that MFB-ICSS would reverse the behavioural effects of streptozotocin and modulate hippocampal neuronal density and serum levels of the miRNAs. Methods: We performed Morris water maze and light–dark transition tests. Levels of various proteins, specifically amyloid-β precurser protein (APP), phosphorylated tau protein (pTAU), and sirtuin 1 (SIRT1), and neurodegeneration were analyzed by Western blot and Nissl staining, respectively. Serum miRNA expression was measured by reverse transcription polymerase chain reaction. Results: Male rats that received streptozotocin had increased hippocampal levels of pTAU S202/T205, APP, and SIRT1 proteins; increased neurodegeneration in the CA1, dentate gyrus (DG), and dorsal tenia tecta; and worse performance in the Morris water maze task. No differences were observed in miRNAs, except for miR-181c and miR-let-7b. After MFB-ICSS, neuronal density in the CA1 and DG regions and levels of miR-181c in streptozotocin-treated and control rats were similar. Rats that received streptozotocin and underwent MFB-ICSS also showed lower levels of miR-let-7b and better spatial learning than rats that received streptozotocin without MFB-ICSS. Limitations: The reversal by MFB-ICSS of deficits induced by streptozotocin was fairly modest. Conclusion: Spatial memory performance, hippocampal neurodegeneration, and serum levels of miR-let-7b and miR-181c were affected by MFB-ICSS under AD-like conditions. Our results validate the MFB as a potential target for DBS and lend support to the use of specific miRNAs as promising biomarkers of the effectiveness of DBS in combatting AD-associated cognitive deficits. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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227. Advances in the understanding of the pathophysiology of schizophrenia and bipolar disorder through induced pluripotent stem cell models.
- Author
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Perrottelli, Andrea, Flavio Marzocchi, Francesco, Caporusso, Edoardo, Maria Giordano, Giulia, Giuliani, Luigi, Melillo, Antonio, Pezzella, Pasquale, Bucci, Paola, Mucci, Armida, and Galderisi, Silvana
- Abstract
The pathophysiology of schizophrenia and bipolar disorder involves a complex interaction between genetic and environmental factors that begins in the early stages of neurodevelopment. Recent advancements in the field of induced pluripotent stem cells (iPSCs) offer a promising tool for understanding the neurobiological alterations involved in these disorders and, potentially, for developing new treatment options. In this review, we summarize the results of iPSC-based research on schizophrenia and bipolar disorder, showing disturbances in neurodevelopmental processes, imbalance in glutamatergic–GABAergic transmission and neuromorphological alterations. The limitations of the reviewed literature are also highlighted, particularly the methodological heterogeneity of the studies, the limited number of studies developing iPSC models of both diseases simultaneously, and the lack of in-depth clinical characterization of the included samples. Further studies are needed to advance knowledge on the common and disease-specific pathophysiological features of schizophrenia and bipolar disorder and to promote the development of new treatment options. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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228. Neuroimaging alterations and relapse in early-stage psychosis.
- Author
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Mihaljevic, Marina, Nagpal, Anisha, Etyemez, Semra, Narita, Zui, Ross, Anna, Schaub, Rebecca, Cascella, Nicola G., Coughlin, Jennifer M., Nestadt, Gerald, Nucifora, Frederik C., Sedlak, Thomas W., Calhoun, Vince D., Faria, Andreia V., Kun Yang, and Sawa, Akira
- Abstract
Background: Recent reports have indicated that symptom exacerbation after a period of improvement, referred to as relapse, in earlystage psychosis could result in brain changes and poor disease outcomes. We hypothesized that substantial neuroimaging alterations may exist among patients who experience relapse in early-stage psychosis. Methods: We studied patients with psychosis within 2 years after the first psychotic event and healthy controls. We divided patients into 2 groups, namely those who did not experience relapse between disease onset and the magnetic resonance imaging (MRI) scan (no-relapse group) and those who did experience relapse between these 2 timings (relapse group). We analyzed 3003 functional connectivity estimates between 78 regions of interest (ROIs) derived from resting-state functional MRI data by adjusting for demographic and clinical confounding factors. Results: We studied 85 patients, incuding 54 in the relapse group and 31 in the no-relapse group, along with 94 healthy controls. We observed significant differences in 47 functional connectivity estimates between the relapse and control groups after multiple comparison corrections, whereas no differences were found between the no-relapse and control groups. Most of these pathological signatures (64%) involved the thalamus. The Jonckheere–Terpstra test indicated that all 47 functional connectivity changes had a significant cross-group progression from controls to patients in the no-relapse group to patients in the relapse group. Limitations: Longitudinal studies are needed to further validate the involvement and pathological importance of the thalamus in relapse. Conclusion: We observed pathological differences in neuronal connectivity associated with relapse in early-stage psychosis, which are more specifically associated with the thalamus. Our study implies the importance of considering neurobiological mechanisms associated with relapse in the trajectory of psychotic disorders. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
229. Orthopedic surgeons' transition into full-time practice over the last 20 years: an analysis using Ministry of Health billing data.
- Author
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Ndoja, Silvio, Vivekanandan, Amirti, Frost, Sophia, Schemitsch, Emil, Sibley, Lyn M., Papp, Steve, and Lanting, Brent
- Subjects
ORTHOPEDISTS ,PART-time employment ,INVOICES ,HEALTH insurance ,POPULATION aging - Abstract
Copyright of Canadian Journal of Surgery is the property of CMA Impact Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
230. Postoperative protocols for older adults undergoing emergency surgery: a scoping review.
- Author
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Greenberg, Brianna, Jiang, Stephanie, and Nadler, Ashlie
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SURGICAL emergencies ,OLDER people ,OLDER patients ,LENGTH of stay in hospitals ,HOSPITAL rounds ,GERIATRIC surgery ,VASCULAR surgery - Abstract
Copyright of Canadian Journal of Surgery is the property of CMA Impact Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
231. Evaluating the scope of rural general surgery in British Columbia.
- Author
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Afford, Rebecca M., Bolin, Sara D., Morris-Janzen, Dunavan K., McLellan, Alastair, Robbins, Nicole, Scott, Tracy M., and Karimuddin, Ahmer A.
- Subjects
SURGERY ,MEDICAL practice ,PLASTIC surgery ,SURGEONS ,VIRTUAL colonoscopy ,RADIOSTEREOMETRY - Abstract
Copyright of Canadian Journal of Surgery is the property of CMA Impact Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
232. Perspectives of Canadian health leaders on the relationship between medical assistance in dying and palliative and end-of-life care services: a qualitative study.
- Author
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Shapiro, Gilla K., Tong, Eryn, Nissim, Rinat, Zimmermann, Camilla, Allin, Sara, Gibson, Jennifer L., Lau, Sharlane C.L., Li, Madeline, and Rodin, Gary
- Subjects
ASSISTED suicide ,TERMINAL care ,MEDICAL assistance ,PALLIATIVE treatment ,INFORMATION services ,QUALITATIVE research - Abstract
Background: Medical assistance in dying (MAiD) was legalized in Canada in 2016, but coordination of MAiD and palliative and end-of-life care (PEOLC) services remains underdeveloped. We sought to understand the perspectives of health leaders across Canada on the relationship between MAiD and PEOLC services and to identify opportunities for improved coordination. Methods: In this quantitative study, we purposively sampled health leaders across Canada with expertise in MAiD, PEOLC, or both. We conducted semi-structured interviews between April 2021 and January 2022. Interview transcripts were coded independently by 2 researchers and reconciled to identify key themes using content analysis. We applied the PATH framework for Integrated Health Services to guide data collection and analysis. Results: We conducted 36 interviews. Participants expressed diverse views about the optimal relationship between MAiD and PEOLC, and the desirability of integration, separation, or coordination of these services. We identified 11 themes to improve the relationship between the services across 4 PATH levels: client-centred services (e.g., educate public); health operations (e.g., cultivate compassionate and proactive leadership); health systems (e.g., conduct broad and inclusive consultation and planning); and intersectoral initiatives (e.g., provide standard practice guidelines across health care systems). Interpretation: Health leaders recognized that cooperation between MAiD and PEOLC services is required for appropriate referrals, care coordination, and patient care. They identified the need for public and provider education, standardized practice guidelines, relationship-building, and leadership. Our findings have implications for MAiD and PEOLC policy development and clinical practice in Canada and other jurisdictions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
233. Estimated mortality risk and use of palliative care services among home care clients during the last 6 months of life: a retrospective cohort study.
- Author
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Murmann, Maya, Manuel, Douglas G., Tanuseputro, Peter, Bennett, Carol, Pugliese, Michael, Li, Wenshan, Roberts, Rhiannon, and Hsu, Amy T.
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HOME care services ,PALLIATIVE treatment ,COHORT analysis ,MEDICAL care use ,ELDER care - Abstract
Background: In Canada, only 15% of patients requiring palliative care receive such services in the year before death. We describe health care utilization patterns among home care users in their last 6 months of life to inform care planning for older people with varying mortality risks and evolving care needs as they decline. Methods: Using population health administrative data from Ontario, we performed a retrospective cohort study involving home care clients aged 50 years and older who received at least 1 interRAI (Resident Assessment Instrument) Home Care assessment between April 2018 and September 2019. We report the proportion of clients who used acute care, long-term care, and palliative home care services within 6 months of their assessment, stratified by their predicted 6-month mortality risk using a prognostic tool called the Risk Evaluation for Support: Predictions for Elder-life in their Communities Tool (RESPECT) and vital status. Results: The cohort included 247 377 adults, 11.9% of whom died within 6 months of an assessment. Among decedents, 50.6% of those with a RESPECT-estimated median survival of fewer than 3 months received at least 1 nonphysician palliative home care visit before death. This proportion declined to 38.7% and 29.5% among decedents with an estimated median survival between 3 and 6 months and between 6 and 12 months, respectively. Interpretation: Many older adults in Ontario do not receive any palliative home care before death. Prognostic tools such as RESPECT may improve recognition of reduced life expectancies and palliative care needs of individuals in their final years of life. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
234. Nunavimmi puvakkut kaggutimik aanniaqarniq: Qanuilirqitaa? Lung cancer in Nunavik: How are we doing? A retrospective matched cohort study.
- Author
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Chen, Yue, MacIsaac, Sarah, Young, Matthew, Ahodakin, Marlene, Jeagal, Luke Wan, Boucher, Maryse, Agulnik, Jason, Boulanger, Nathalie, Camilleri-Broët, Sophie, Ezer, Nicole, Gonzalez, Anne V., Owen, Scott, Pepe, Carmela, Spicer, Jonathan, Wang, Hangjun, White-Dupuis, Shirley, Watt, Larry, Grey, Minnie, Benedetti, Andrea, and Khan, Faiz Ahmad
- Subjects
SMALL cell lung cancer ,LUNG cancer ,NON-small-cell lung carcinoma ,CANADIAN Inuit ,COHORT analysis - Abstract
Background: Whether Inuit in Canada experience disparities in lung cancer survival remains unknown. When requiring investigation and treatment for lung cancer, all residents of Nunavik, the Inuit homeland in Quebec, are sent to the McGill University Health Centre (MUHC), in Montréal. We sought to compare survival among patients with lung cancer at the MUHC, who were residents of Nunavik and Montréal, Quebec, respectively. Methods: We conducted a retrospective cohort study. Using lung cancer registry data, we identified Nunavik residents with histologically confirmed lung cancer diagnosed between 2005 and 2017. We aimed to match 2 Montréal residents to each Nunavik resident on sex, age, calendar year of diagnosis, and histology (non–small cell lung cancer v. small cell lung cancer). We reviewed medical records for data on additional patient characteristics and treatment, and obtained vital status from a provincial registry. We compared survival using Kaplan–Meier analysis and Cox proportional hazards regression. Results: We included 95 residents of Nunavik and 185 residents of Montréal. For non–small cell lung cancer, median survival times were 321 (95% confidence interval [CI] 184–626) days for Nunavik (n = 71) and 720 (95% CI 536–1208) days for Montréal residents (n = 141). For small cell lung cancer, median survival times were 190 (95% CI 159–308) days for Nunavik (n = 24) and 270 (95% CI 194–766) days for Montréal residents (n = 44). Adjusting for matching variables, stage, performance status, and comorbidity, Nunavik residents had a higher hazard of death (hazard ratio 1.68, 95% CI 1.17–2.41). Interpretation: Nunavik residents experience disparities in survival after lung cancer diagnosis. Although studies in other Inuit Nunangat regions are needed, our findings point to an urgent need to ensure that interventions aimed at improving lung cancer survival, including lung cancer screening, are accessible to Inuit Nunangat residents. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
235. An experiment in open peer review.
- Subjects
SATIRE ,SCHOLARLY peer review ,MEDICAL research ,RESEARCH evaluation - Abstract
The article presents the comments of the periodical's Deputy Editor Matthew Stanbrook about a satirical article on peer review of medical studies published within the issue. Topics discussed include the requirements imposed by the editorial staff on the author of the satire to get himself published, the aspects of the article that Stanbrook found funny and the areas that he recommends for revision.
- Published
- 2014
- Full Text
- View/download PDF
236. Studies of survivors of myocardial infarction.
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Irwin, Aden C.
- Published
- 1971
237. The Most Unkindest Cut of All--and How to Avoid It.
- Author
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REID, HELEN EVANS
- Published
- 1969
238. A MULTISPECIALTY JOURNAL.
- Published
- 1966
239. Examinations for Specialist Certification.
- Published
- 1965
240. Citation rate: A measure of excellence?
- Author
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Squires, Bruce P.
- Published
- 1992
241. Genetic and early environmental influences on the serotonin system: consequences for brain development and risk for psychopathology.
- Author
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Booij, Linda, Tremblay, Richard E., Szyf, Moshe, and Benkelfat, Chawki
- Subjects
BRAIN physiology ,ECOLOGY ,GENETICS ,PATHOLOGICAL psychology ,SEROTONIN ,FETAL development - Abstract
Background: Despite more than 60 years of research in the role of serotonin (5-HT) in psychopathology, many questions still remain. From a developmental perspective, studies have provided more insight into how 5-HT dysfunctions acquired in utero or early in life may modulate brain development. This paper discusses the relevance of the developmental role of 5-HT for the understanding of psychopathology. We review developmental milestones of the 5-HT system, how genetic and environmental 5-HT disturbances could affect brain development and the potential role of DNA methylation in 5-HT genes for brain development. Methods: Studies were identified using common databases (e.g., PubMed, Google Scholar) and reference lists. Results: Despite the widely supported view that the 5-HT system matures in early life, different 5-HT receptors, proteins and enzymes have different developmental patterns, and development is brain region-specific. A disruption in 5-HT homeostasis during development may lead to structural and functional changes in brain circuits that modulate emotional stress responses, including subcortical limbic and (pre)frontal areas. This may result in a predisposition to psychopathology. DNA methylation might be one of the underlying physiologic mechanisms. Limitations: There is a need for prospective studies. The impact of stressors during adolescence on the 5-HT system is understudied. Questions regarding efficacy of drugs acting on 5-HT still remain. Conclusion: A multidisciplinary and longitudinal approach in designing studies on the role of 5-HT in psychopathology might help to bring us closer to the understanding of the role of 5-HT in psychopathology. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
242. A NOT-SO-SYSTEMATIC REVIEW.
- Author
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Heeckt, Peter, Goost, Hans, Lin, Sheldon S., McKinley, Todd O., Mehta, Samir, Mikuni-Takagaki, Yuko, Ebrahim, Shanil, Mollon, Brent, Bance, Sheena, Busse, Jason W., and Bhandari, Mohit
- Subjects
ULTRASONIC imaging ,FRACTURE fixation - Abstract
A letter to the editor is presented in response to the article "Low Intensity Pulsed Ultrasonography Versus Electrical Stimulation for Fracture Healing: A Systematic Review and Network Meta-analysis" by S. Ebrahim, B. Mollon and S. Bance in a 2014 issue.
- Published
- 2014
- Full Text
- View/download PDF
243. Antipsychotic dosing: found in translation.
- Author
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Remington, Gary, Fervaha, Gagan, Foussias, George, Agid, Ofer, and Turrone, Peter
- Subjects
BRAIN physiology ,DRUG therapy for psychoses ,ANTIPSYCHOTIC agents ,PSYCHOSES ,POSITRON emission tomography - Abstract
In the field of schizophrenia research, as in other areas of psychiatry, there is a sense of frustration that greater advances have not been made over the years, calling into question existing research strategies. Arguably, many purported gains claimed by research have been "lost in translation," resulting in limited impact on diagnosis and treatment in the clinical setting. There are exceptions; for example, we would argue that different lines of preclinical and clinical research have substantially altered how we look at antipsychotic dosing. While this story remains a work in progress, advances "found in translation" have played an important role. Detailing these changes, the present paper speaks to a body of evidence that has already shifted clinical practice and raises questions that may further alter the manner in which antipsychotics have been administered over the last 6 decades. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
244. THE SHORTCOMING AND DEFICIENCY IN "ATTEMPTING PRIMARY CLOSURE FOR ALL OPEN FRACTURES: THE EFFECTIVENESS OF AN INSTITUTIONAL PROTOCOL".
- Author
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Yueju Liu, Yingze Zhang, and Harvey, Edward J.
- Subjects
COMPOUND fractures ,ORTHOPEDIC surgery ,THERAPEUTICS - Abstract
A letter to the editor is presented in response to the article "Attempting Primary Closure for All Open Fractures: The Effectiveness of an Institutional Protocol" by F. Moola, A. Carli and G.K. Berry in a 2014 issue.
- Published
- 2014
- Full Text
- View/download PDF
245. The power of academic relationships.
- Author
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Loh, Lawrence
- Subjects
ACADEMIC achievement ,FACULTY advisors ,PUBLISHED articles ,EXPERT evidence ,INTERPERSONAL relations ,EMAIL - Abstract
The article presents author's views regarding the importance of the relationships developed during our academic journey. He believes that beyond the successful publication of the articles the author affiliations presents testimony to academic relationships. He refers to several procedures a team undergoes during the process of formation of article including discussions, phone calls and emails.
- Published
- 2013
- Full Text
- View/download PDF
246. Sexual misconduct.
- Author
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Solursh, Lionel P. and Rapp, Morton S.
- Published
- 1987
247. Medicine, research and the Criminal Code.
- Author
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Emson, Harry E.
- Published
- 1990
248. Researcher dedicated to tumour-suppressing genes.
- Author
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Ahuja, Christopher S.
- Subjects
TUMOR suppressor proteins ,PHYSICIANS ,SCIENTISTS - Abstract
An interview with Doctor William G. Kaelin Jr. is presented. He discusses how he became a physician-scientist. He explains how he became interested in studying the von Hippel-Lindau (VHL) tumour suppressor protein and how his work on tumour suppressors would benefit patients. He offers his advise to aspiring young scientists and physician-scientists.
- Published
- 2017
- Full Text
- View/download PDF
249. Effects of daily iron supplementation in primary-school--aged children: systematic review and meta-analysis of randomized controlled trials.
- Author
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Low, Michael, Farrell, Ann, Biggs, Beverley-Ann, and Pasricha, Sant-Rayn
- Subjects
IRON supplements ,HEALTH of school children ,ANEMIA in children ,META-analysis ,MEDICAL research - Abstract
Background: Anemia is an important public health and clinical problem. Observational studies have linked iron deficiency and anemia in children with many poor outcomes, including impaired cognitive development; however, iron supplementation, a widely used prevent-five and therapeutic strategy, is associated with adverse effects. Primary-school-aged children are at a critical stage in intellectual development, and optimization of their cognitive performance could have long-lasting individual and population benefits. In this study, we summarize the evidence for the benefits and safety of daily iron supplementation in primary- school-aged children. Methods: We searched electronic databases (including MEDLINE and Embase) and other sources (July 2013) for randomized and quasi-randomized controlled trials involving daily iron supplementation in children aged 5-12 years. We combined the data using random effects meta-analysis. Results: We identified 16 501 studies; of these, we evaluated 76 full-text papers and included 32 studies including 7089 children. Of the included studies, 31 were conducted in low- or middle- income settings. Iron supplementation improved global cognitive scores (standardized mean difference 0.50, 95% confidence interval [CI] 0.11 to 0.90, p = 0.01), intelligence quotient among anemic children (mean difference 4.55, 95% CI 0.16 to 8.94, p = 0.04) and measures of attention and concentration. Iron supplementation also improved age-adjusted height among all children and age-adjusted weight among anemic children. Iron supplementation reduced the risk of anemia by 50% and the risk of iron deficiency by 79%. Adherence in the trial settings was generally high. Safety data were limited. Interpretation: Our analysis suggests that iron supplementation safely improves hematologic and nonhematologic outcomes among primary-school-aged children in low- or middle-income settings and is well-tolerated. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
250. Short-term social isolation induces depressive-like behaviour and reinstates the retrieval of an aversive task: Mood-congruent memory in male mice?
- Author
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Takatsu-Coleman, André L., Patti, Camilla L., Zanin, Karina A., Zager, Adriano, Carvalho, Rita C., Borçoi, Aline R., Ceccon, Liliane M.B., Berro, Laís F., Tufik, Sergio, Andersen, Monica L., and Frussa-Filho, Roberto
- Subjects
MENTAL depression risk factors ,AFFECT (Psychology) ,ANALYSIS of variance ,ANIMAL experimentation ,BIOLOGICAL models ,CROWDS ,MEMORY ,RATS ,RESEARCH funding ,SOCIAL isolation ,STATISTICS ,DATA analysis - Abstract
Background: Although mood-congruent memory (MCM), or the tendency to recall information consistent with one's mood, is a robust phenomenon in human depression, to our knowledge, it has never been demonstrated in animals. Methods: Mice were subjected to social isolation (SI) or crowding for 12 hours and had their depressive-like behaviour (evaluated by the forced swim, tail suspension, sucrose preference and splash tests) or their serum corticosterone concentrations evaluated. In addition, we determined the temporal forgetting curve of the plus-maze discriminative avoidance task (PM-DAT) and examined the effects of SI or crowding on memory retrievalin the PM-DAT. Finally, we verified the effects of metyrapone pretreatment on reinstatement of memory retrieval or on the increase of corticosterone levels induced by SI. Results: Twelve hours of SI produced depressive-like behaviour, enhanced corticosterone concentration and reinstated retrieval of a forgotten discriminative aversive (i.e., negatively valenced) task. Depressive-like behaviour was critical for this facilitative effect of SI because 12 hours of crowding neither induced depressive-like behaviour nor enhanced retrieval, although it increased corticosterone levels at the same magnitude as SI. However, corticosterone increase was a necessary condition for MCM in mice, in that the corticosterone synthesis inhibitor metyrapone abolished SI-induced retrieval reinstatement. Limitations: Our study did not investigate the effects of the social manipulations proposed here in a positively valenced task. Conclusion: To our knowledge, the present paper provides the first evidence of MCM in animal models. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
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