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result(s) for
"Schroeder, Torben V."
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Frequency and Effect of Access-Related Vascular Injury and Subsequent Vascular Intervention After Transcatheter Aortic Valve Replacement
by
Kofoed, Klaus F.
,
Schroeder, Torben V.
,
Taudorf, Mikkel
in
Aged
,
Aged, 80 and over
,
Angioplasty, Balloon - utilization
2016
Vascular access and closure remain a challenge in transcatheter aortic valve replacement (TAVR). This single-center study aimed to report the incidence, predictive factors, and clinical outcomes of access-related vascular injury and subsequent vascular intervention. During a 30-month period, 365 patients underwent TAVR and 333 patients (94%) were treated by true percutaneous transfemoral approach. Of this latter group, 83 patients (25%) had an access-related vascular injury that was managed by the use of a covered self-expanding stent (n = 49), balloon angioplasty (n = 33), or by surgical intervention (n = 1). In 16 patients (5%), the vascular injury was classified as a major vascular complication. Absence of a preprocedural computed tomography angiography (CTA) of the iliofemoral arteries (OR 2.04, p = 0.007) and female gender (OR 2.18, p = 0.004) were independent predictors of the need for access-related vascular intervention. In addition, a high sheath/common femoral artery ratio as measured on preoperative CTA was associated with a higher rate of post-TAVR vascular intervention. The radiation dose, iodine contrast volume, transfusion need, length of hospitalization, and 30-day mortality were not significantly different between patients with versus without access-related vascular intervention. In conclusion, access-related vascular intervention in patients who underwent transfemoral-TAVR is not uncommon. Female gender and a high sheath/common femoral artery ratio are risk factors for access-related vascular injury, whereas preprocedural planning with CTA of the access vessels may reduce the risk of vascular injury. Importantly, most access-related vascular injuries may be treated by percutaneous techniques with similar clinical outcomes to patients without vascular injuries.
Journal Article
Clinical Trial Registration: A Statement from the International Committee of Medical Journal Editors
by
Schroeder, Torben V
,
Frizelle, Prof. Frank A
,
Hoey, John
in
Clinical Trials as Topic - standards
,
Editorial Policies
,
Periodicals as Topic - standards
2004
Altruism and trust lie at the heart of research on human subjects. Altruistic individuals volunteer for research because they trust that their participation will contribute to improved health for others and that researchers will minimize risks to participants. In return for the altruism and trust that make clinical research possible, the research enterprise has an obligation to conduct research ethically and to report it honestly. Honest reporting begins with revealing the existence of all clinical studies, even those that reflect unfavorably on a research sponsor's product.
Unfortunately, selective reporting of trials does occur, and it distorts the body of evidence . . .
Journal Article
Clinical Trial Registration: A Statement from the International Committee of Medical Journal Editors
by
Frizelle, Frank A.
,
Hoey, John
,
Van Der Weyden, Martin B.
in
Clinical trials
,
Clinical Trials as Topic - standards
,
Editorial Policies
2004
If all clinical trials are registered in a public repository at their inception, every trial's existence is part of the public record and the many stakeholders in clinical research can explore the full range of clinical evidence. The International Committee of Medical Journal Editors proposes comprehensive trials registration as a solution to the problem of selective awareness of clinical trials.
Journal Article
The Gold Standard Program for Smoking Cessation is Effective for Participants Over 60 Years of Age
2015
Background: Tobacco smoking is more prevalent among the elderly than among the young, and the elderly also have the most frequent contact with the health care system. The aim of this study was to evaluate the effectiveness of the Gold Standard Program, which is an intensive six-week smoking cessation program, on continuous self-reported abstinence rates after six months, on participants over the age of 60 years in a real life setting. Methods: This was a retrospective cohort study from the national Danish smoking cessation database. Results: The database registered 7369 participants over the age of 60 years (range 60–82) and 24,294 below 60 years (range 15–59). Continuous abstinence rate after six months was 37% for the elderly compared to 35% for the younger (p < 0.05). The significant variables for continuous abstinence were: living with another adult (OR 1.10), prior professional recommendation for smoking cessation (OR 1.12), being compliant with program (OR 1.35) and being abstinent at end of course (OR 13.3). Conclusions: Participants over the age of 60 years had significantly higher continuous abstinence rates after six months than the participants less than 60 years. It is never too late for health professionals to recommend and educate patients about smoking cessation programs even if they are over 60 years of age.
Journal Article
Effect of virtual reality training on laparoscopic surgery: randomised controlled trial
by
Larsen, Christian R
,
Schouenborg, Lars
,
Schroeder, Torben V
in
Adult
,
Clinical Competence - standards
,
Clinical Trials (Epidemiology)
2009
Objective To assess the effect of virtual reality training on an actual laparoscopic operation.Design Prospective randomised controlled and blinded trial.Setting Seven gynaecological departments in the Zeeland region of Denmark.Participants 24 first and second year registrars specialising in gynaecology and obstetrics.Interventions Proficiency based virtual reality simulator training in laparoscopic salpingectomy and standard clinical education (controls).Main outcome measure The main outcome measure was technical performance assessed by two independent observers blinded to trainee and training status using a previously validated general and task specific rating scale. The secondary outcome measure was operation time in minutes.Results The simulator trained group (n=11) reached a median total score of 33 points (interquartile range 32-36 points), equivalent to the experience gained after 20-50 laparoscopic procedures, whereas the control group (n=10) reached a median total score of 23 (22-27) points, equivalent to the experience gained from fewer than five procedures (P<0.001). The median total operation time in the simulator trained group was 12 minutes (interquartile range 10-14 minutes) and in the control group was 24 (20-29) minutes (P<0.001). The observers’ inter-rater agreement was 0.79.Conclusion Skills in laparoscopic surgery can be increased in a clinically relevant manner using proficiency based virtual reality simulator training. The performance level of novices was increased to that of intermediately experienced laparoscopists and operation time was halved. Simulator training should be considered before trainees carry out laparoscopic procedures.Trial registration ClinicalTrials.gov NCT00311792. This video follows Sofie Leisby, a trainee surgeon, through laparoscopic surgery—from practising in VR to a real life procedure. media-1 10.1136/bmj.b1802V1
Journal Article
Perioperative smoking cessation in vascular surgery: challenges with a randomized controlled trial
2015
Background
The effect of intensive smoking cessation programs on postoperative complications has never before been assessed in soft tissue surgery when smoking cessation is initiated on the day of surgery.
Methods
A single-blinded randomized clinical trial conducted at two vascular surgery departments in Denmark. The intervention group was offered the Gold Standard Program (GSP) for smoking cessation intervention. The control group was offered the departments’ standard care. Inclusion criteria were patients with planned open peripheral vascular surgery and who were daily smokers. According to the power calculation a total of 144 patients were needed in the trial.
Results
Due to slow patient inclusion, the trial was terminated prior to fulfilling the power calculation. Thirty-two patients were included in the trial from March 2011 to September 2012. Of these, 11 were randomized to the GSP intervention and 21 as controls. There was no difference in 30-day complication rates or 6-week abstinence rates between the two groups.
Conclusions
A trial assessing the effect of smoking cessation on postoperative complications on the day of soft tissue surgery is still needed. If another trial is to be planned it must be more pragmatic with less extended inclusion criteria and conducted nationally or internationally to ensure enough patients for the trial.
Trial registration
ClinicalTrials.gov (
NCT01469091
). Registration date: 27 October 2011.
Journal Article
Clinical Trial Registration — Looking Back and Moving Ahead
by
Schroeder, Torben V
,
Verheugt, Freek W.A
,
Frizelle, Frank A
in
Clinical trials
,
Clinical Trials as Topic - standards
,
Editorial Policies
2007
In 2005, the International Committee of Medical Journal Editors (ICMJE) initiated a policy requiring investigators to deposit information about trial design into an accepted clinical trials registry before the onset of patient enrollment.
1
This policy aimed to ensure that information about the existence and design of clinically directive trials was publicly available, an ideal that leaders in evidence-based medicine have advocated for decades.
2
The policy precipitated much angst among research investigators and sponsors, who feared that registration would be burdensome and would stifle competition. Yet, the response to this policy has been overwhelming. The ICMJE promised to reevaluate the policy . . .
Journal Article
Clinical trial registration: a statement from the International Committee of Medical Journal Editors
by
Schroeder, Torben V
,
Frizelle, Frank A
,
Hoey, John
in
Clinical trials
,
Clinical Trials as Topic - standards
,
Editorial Policies
2004
The case against selective reporting is particularly compelling for research that tests interventions that could enter mainstream clinical practice. Rather than a single trial, it is usually a body of evidence, consisting of many studies, that changes medical practice. When research sponsors or investigators conceal the presence of selected trials, these studies cannot influence the thinking of patients, clinicians, other researchers, and experts who write practice guidelines or decide on insurance-coverage policy. If all trials are registered in a public repository at their inception, every trial's existence is part of the public record and the many stakeholders in clinical research can explore the full range of clinical evidence. We are far from this ideal at present, since trial registration is largely voluntary, registry data sets and public access to them varies, and registries contain only a small proportion of trials. In this editorial, published simultaneously in all member journals, the International Committee of Medical Journal Editors (ICMJE) proposes comprehensive trials registration as a solution to the problem of selective awareness and announces that all eleven ICMJE member journals will adopt a trials-registration policy to promote this goal.
Journal Article
Is This Clinical Trial Fully Registered? — A Statement from the International Committee of Medical Journal Editors
by
Schroeder, Torben V
,
Hoey, John
,
Haug, Charlotte
in
Clinical Trials as Topic - standards
,
Editorial Policies
,
Periodicals as Topic
2005
In September 2004, the members of the International Committee of Medical Journal Editors (ICMJE) published a joint editorial aimed at promoting registration of all clinical trials.
1
We stated that we will consider a trial for publication only if it has been registered before the enrollment of the first patient. This policy applies to trials that start recruiting on or after July 1, 2005. Because many ongoing trials were not registered at inception, we will consider for publication ongoing trials that are registered before September 13, 2005. Our goal then and now is to foster a comprehensive, publicly available database of . . .
Journal Article