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2.
J Clin Epidemiol ; 127: 19-28, 2020 11.
Article in English | MEDLINE | ID: mdl-32622901

ABSTRACT

OBJECTIVES: The objective of the study is to review the literature for studies that assessed the concordance of financial conflicts of interest disclosures with payments' databases and evaluate their methods. STUDY DESIGN AND SETTING: We conducted a systematic survey of the health literature to identify eligible studies. We searched both Medline and EMBASE up to February 2017. We conducted study selection, data abstraction, and methodological quality assessment in duplicate and independently using standardized forms. We subcategorized 'nonconcordant disclosures' as either 'partially nonconcordant' or 'completely nonconcordant'. The main outcome was the percentage of authors with 'nonconcordant' disclosures. We summarized results by three levels of analysis: authors, companies, and studies. RESULTS: We identified 27 eligible journal articles. The top two types of documents assessed were published articles (n = 13) and published guidelines (n = 9). The most commonly used payment database was the Open Payments Database (n = 16). The median percentage of authors with 'nonconcordant' disclosures was 81%; the median percentage was 43% for 'completely nonconcordant' disclosures. The percentage of 'nonconcordant' conflict of interest (COI) reporting by companies varied between 23% and 85%. The methods of concordance assessment, as well as the labeling and definitions of assessed outcomes varied widely across the included studies. We judged three of the included studies as high-quality studies. CONCLUSION: Underreporting of health science researchers' financial COIs is pervasive. Studies assessing COI underreporting suffer from a number of limitations that could have overestimated their findings.


Subject(s)
Conflict of Interest/economics , Databases, Factual/economics , Disclosure/statistics & numerical data , Databases, Factual/statistics & numerical data , Humans
3.
J Comput Assist Tomogr ; 43(4): 572-583, 2019.
Article in English | MEDLINE | ID: mdl-31162239

ABSTRACT

Coronary anomalies occur in about 1% of the general population and in severe cases can lead to sudden cardiac death. Coronary computed tomography angiography and magnetic resonance imaging have been deemed appropriate for the evaluation of coronary anomalies by accurately allowing the noninvasive depiction of coronary artery anomalies of origin, course, and termination. The aim of this article is to describe and illustrate a comprehensive array for the classification of coronary artery anomalies.


Subject(s)
Coronary Angiography , Coronary Vessel Anomalies/diagnostic imaging , Coronary Vessels/diagnostic imaging , Magnetic Resonance Imaging , Tomography, X-Ray Computed , Humans
4.
Int J Health Policy Manag ; 7(8): 711-717, 2018 08 01.
Article in English | MEDLINE | ID: mdl-30078291

ABSTRACT

BACKGROUND: Systematic reviews are increasingly used to inform health policy-making. The conflicts of interest (COI) of the authors of systematic reviews may bias their results and influence their conclusions. This may in turn lead to misguided public policies and systems level decisions. In order to mitigate the adverse impact of COI, scientific journals require authors to disclose their COIs. The objective of this study was to assess the frequency and different types of COI that authors of systematic reviews on health policy and systems research (HSPR) report. METHODS: We conducted a cross sectional survey. We searched the Health Systems Evidence (HSE) database of McMaster Health Forum for systematic reviews published in 2015. We extracted information regarding the characteristics of the systematic reviews and the associated COI disclosures. We conducted descriptive analyses. RESULTS: Eighty percent of systematic reviews included authors' COI disclosures. Of the 160 systematic reviews that included COI disclosures, 15% had at least one author reporting at least one type of COI. The two most frequently reported types of COI were individual financial COI and individual scholarly COI (11% and 4% respectively). Institutional COIs were less commonly reported than individual COIs (3% and 15% respectively) and non-financial COIs were less commonly reported than financial COIs (6% and 14% respectively). Only one systematic review reported the COI disclosure by editors, and none reported disclosure by peer reviewers. All COI disclosures were in the form of a narrative statement in the main document and none in an online document. CONCLUSION: A fifth of systematic reviews in HPSR do not include a COI disclosure statement, highlighting the need for journals to strengthen and/or better implement their COI disclosure policies. While only 15% of identified disclosure statements report any COI, it is not clear whether this indicates a low frequency of COI versus an underreporting of COI, or both.


Subject(s)
Authorship , Conflict of Interest , Disclosure , Health Policy , Publishing , Research , Review Literature as Topic , Bias , Cross-Sectional Studies , Health Services Research , Humans , Surveys and Questionnaires
5.
Front Cardiovasc Med ; 5: 77, 2018.
Article in English | MEDLINE | ID: mdl-29998127

ABSTRACT

Cardiomyopathies (CMs) are a group of cardiac pathologies caused by an intrinsic defect within the myocardium. The relative contribution of genetic mutations in the pathogenesis of certain CMs, such as hypertrophic cardiomyopathy (HCM), arrythmogenic right/left ventricular cardiomyopathy (ARVC) and left ventricular non-compacted cardiomyopathy (LVNC) has been established in comparison to dilated cardiomyopathy (DCM) and restrictive cardiomyopathy (RCM). The aim of this article is to review mutations in the non-coding parts of the genome, namely, microRNA, promoter elements, enhancer/silencer elements, 3'/5'UTRs and introns, that are involved in the pathogenesis CMs. Additionally, we will explore the role of some long non-coding RNAs in the pathogenesis of CMs.

6.
Surg Obes Relat Dis ; 13(6): 934-941, 2017 Jun.
Article in English | MEDLINE | ID: mdl-28223091

ABSTRACT

BACKGROUND: The indication and safety of concomitant cholecystectomy (CC) during bariatric surgical procedures are topics of controversy. Studies on the outcomes of CC with laparoscopic sleeve gastrectomy (LSG) are scarce. OBJECTIVES: To assess the safety and 30-day surgical outcomes of CC with LSG. METHODS: A retrospective analysis of the American College of Surgeons National Surgical Quality Improvement Program database 2010 to 2013. Univariate and multivariate analyses were used. RESULTS: Between 2010 and 2013, 21,137 patients underwent LSG; of those 422 (2.0%) underwent CC (LSG+CC), and the majority (20,715 [98%]) underwent LSG alone. Patients in both groups were similar in age, sex distribution, baseline weight, and body mass index. The average surgical time was significantly higher, by 33 minutes, in the LSG+CC cohort. No differences were noted between the groups with regard to overall 30-day mortality and length of hospital stay. CC increased the odds of any adverse event (5.7% versus 4.0%), but the difference did not reach statistical significance (odds ratio 1.49, P = .07). Two complications were noted to be significantly higher with LSG+CC, namely bleeding (P = .04) and pneumonia (P = .02). CONCLUSION: CC during LSG appears to be a safe procedure with slightly increased risk of bleeding and pneumonia compared with LSG alone. When factoring the potential risk and cost of further hospitalization for deferred cholecystectomy, these data support CC for established gallbladder disease.


Subject(s)
Bariatric Surgery/adverse effects , Gastrectomy/adverse effects , Laparoscopy/adverse effects , Adult , Aged , Bariatric Surgery/methods , Blood Loss, Surgical , Cholecystectomy, Laparoscopic/adverse effects , Cholecystectomy, Laparoscopic/methods , Combined Modality Therapy , Female , Gallbladder Diseases/complications , Gallbladder Diseases/surgery , Gastrectomy/methods , Humans , Laparoscopy/methods , Length of Stay/statistics & numerical data , Male , Middle Aged , Obesity, Morbid/complications , Obesity, Morbid/surgery , Operative Time , Pneumonia/etiology , Postoperative Complications/etiology , Registries , Retrospective Studies , Risk Factors
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