Publications by authors named "Pron G"

Tarlov cysts were thought to be anatomic variants of uncertain etiology and clinical significance when initially described over 80 years ago. They are often detected in routine lumbosacral imaging and generally not reported in a differential diagnosis. There is increasing evidence that at least some Tarlov cysts are symptomatic and can have a significant adverse impact on patients' health and well-being.

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Objective: Although there is substantial clinical evidence on the safety and effectiveness of vertebral augmentation for osteoporotic vertebral fractures, cost-effectiveness is less well known. The objective of this study is to provide a systematic review of cost-effectiveness studies and policy-based willingness-to-pay (WTP) thresholds for different vertebral augmentation (VA) procedures, vertebroplasty (VP) and balloon kyphoplasty (BK), for osteoporotic vertebral fractures (OVFs).

Design: A systematic review targeting cost-effectiveness studies of VA procedures for OVFs.

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Purpose: To evaluate the prevalence of surface lead-dust contamination on radiation protection apparel (RPAs) in the radiology department and compare findings with those from other studies of RPA lead-dust contamination.

Materials And Methods: A survey of RPAs was conducted between June and December 2021 in radiology departments at a tertiary-care university hospital. A convenience sample of RPAs located on wall-mounted racks outside the angiography suite and emergency department was surveyed.

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Background Context: Osteoporotic vertebral fractures (OVF) dramatically increase with age and are serious life altering adverse events for seniors resulting in increased rates of institutionalization, morbidity and mortality. Given the expanding population of the elderly and increasing prevalence of OVFs, cost-effective treatment strategies need to be considered. Percutaneous vertebral augmentation (VA) procedures such as vertebroplasty (VP) or balloon kyphoplasty (BK) are increasingly employed to treat painful vertebral fractures not responding to conservative management (CM) of bedrest and analgesia.

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Objective: As health technology assessment (HTA) organizations in Canada and around the world seek to involve the public and patients in their activities, frameworks to guide decisions about whom to involve, through which mechanisms, and at what stages of the HTA process have been lacking. The aim of this study was to describe the development and outputs of a comprehensive framework for involving the public and patients in a government agency's HTA process.

Methods: The framework was informed by a synthesis of international practice and published literature, a dialogue with local, national and international stakeholders, and the deliberations of a government agency's public engagement subcommittee in Ontario, Canada.

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Background: Prostate cancer (PC) is the most commonly diagnosed non-cutaneous cancer in men and their second or third leading cause of cancer death. Prostate-specific antigen (PSA) testing for PC has been in common practice for more than 20 years.

Objectives: A systematic review of the scientific literature was conducted to determine the effectiveness of PSA-based population screening programs for PC to inform policy decisions in a publicly funded health care system.

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Background: Magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) is a noninvasive uterine-preserving treatment alternative to hysterectomy for women with symptomatic uterine leiomyomas (fibroids). Uterine fibroids commonly occur, have a broad impact on women's health and lifestyle, continue to be the main indication for hysterectomy, and represent a costly public health burden.

Objectives: The objectives of the analysis were to evaluate patients' eligibility for MRgHIFU treatment of symptomatic uterine fibroids and the technical success, safety, effectiveness, and durability of this treatment.

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Background: New anti-angiogenesis pharmacotherapies have dramatically altered treatment of age-related macular degeneration (AMD), the leading cause of blindness in older adults. Monthly intraocular injections however, are extremely burdensome to ophthalmologists, patients, and their families. Repeated injections also increase risks of complications or adverse events.

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Objective: The objective of this Medical Advisory Secretariat (MAS) report was to conduct a systematic review of the available published evidence on the safety, effectiveness, and cost-effectiveness of Internet-based device-assisted remote monitoring systems (RMSs) for therapeutic cardiac implantable electronic devices (CIEDs) such as pacemakers (PMs), implantable cardioverter-defibrillators (ICDs), and cardiac resynchronization therapy (CRT) devices. The MAS evidence-based review was performed to support public financing decisions.

Clinical Need: Condition And Target Population: Sudden cardiac death (SCD) is a major cause of fatalities in developed countries.

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Objective: The main objectives for this evidence-based analysis were to determine the safety and effectiveness of photochemical corneal collagen cross-linking with riboflavin (vitamin B(2)) and ultraviolet-A radiation, referred to as CXL, for the management of corneal thinning disease conditions. The comparative safety and effectiveness of corneal cross-linking with other minimally invasive treatments such as intrastromal corneal rings was also reviewed. The Medical Advisory Secretariat (MAS) evidence-based analysis was performed to support public financing decisions.

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Objective: To assess long-term clinical outcomes of uterine artery embolization across a wide variety of practice settings in a large patient cohort.

Methods: The Fibroid Registry for Outcomes Data (FIBROID) for Uterine Embolization was a 3-year, single-arm, prospective, multi-center longitudinal study of the short- and long-term outcomes of uterine artery embolization for leiomyomata. Two thousand one hundred twelve patients with symptomatic leiomyomata were eligible for long-term follow-up at 27 sites representing a geographically diverse set of practices, including academic centers, community hospitals, and closed-panel health maintenance organizations.

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Objective: To determine if goserelin immediately after uterine artery embolization (UAE) affected myoma reduction.

Design: Randomized pilot study (level 1).

Setting: Teaching hospital.

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Mounting evidence to support the safety and effectiveness of new uterine-preserving fibroid therapies is raising questions not only about changing indications for surgery but also about gynecologists' role in therapies offered by other specialists. New collaborative relationships are needed to provide the best possible treatment; without them, those lag times of 10-15 years often cited as the time it takes for advances in clinical research to diffuse into clinical practice will be even longer for women with symptomatic fibroids.

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Objective: To investigate the short-term safety of uterine embolization for leiomyomata in a large cohort of patients treated in a variety of clinical settings.

Methods: Examining the FIBROID Registry, a multicenter prospective voluntary registry of patients undergoing uterine embolization for leiomyomata, we studied the frequency of adverse events and predictors of adverse events within 30 days of the procedure. We also report on the technical aspects of the procedure, including details of periprocedural care, technique, and short-term recovery.

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Objective: To describe registry methods and baseline patient demographics from a national sample of women undergoing uterine artery embolization for uterine leiomyomata.

Methods: Interventional radiology practices were recruited to submit data by a secure Web site on women undergoing uterine artery embolization for symptomatic leiomyomata. Baseline data included patient demographics, prior medical, surgical, and obstetrical history, uterine anatomy, and quality-of-life measures.

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Objective: To report on pregnancies and deliveries occurring in a large cohort of women who underwent uterine artery embolization instead of surgery for symptomatic leiomyomata.

Methods: A total of 555 women underwent uterine embolization in a multicenter clinical trial. The primary embolic agent was 355-500 microm polyvinyl alcohol particles with treatment end-point as bilateral stasis in the uterine arteries.

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The present study was designed to obtain a comprehensive view of the dysphagia assessment practice patterns of speech-language pathologists and their opinion on the importance of these practices using survey methods and taking into consideration clinician, patient, and practice-setting variables. A self-administered mail questionnaire was developed following established methodology to maximize response rates. Eight dysphagia experts independently rated the new survey for content validity.

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Purpose: Uterine artery embolization (UAE) is gaining popularity as an alternative to hysterectomy for the treatment of fibroids. Although minimally invasive treatments such as UAE offer the potential of fewer complications, shorter hospital stay, and quicker recovery than surgery, there have been few published data on tolerance and recovery in patients undergoing UAE.

Materials And Methods: This was a multicenter prospective single-arm clinical treatment trial involving the practices of 11 interventional radiologists in eight Ontario university-affiliated and community hospitals.

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Purpose: To document the technical results and spectrum of practice of uterine artery embolization (UAE) for fibroids in the health care setting in Canada. The effects of interventional radiologist's (IR's) experience with UAE on procedure and fluoroscopy time were also investigated.

Materials And Methods: The study involved a multicenter prospective single-arm clinical treatment trial and included the practices of 11 IRs at eight university-affiliated teaching and community hospitals.

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Article Synopsis
  • The study aimed to assess the rate of hysterectomies due to complications following uterine artery embolization (UAE) for treating uterine fibroids.
  • The research involved a prospective trial across eight hospitals with 555 women participating and utilizing detailed follow-up methods like interviews and ultrasounds.
  • Findings showed that only 1.5% of the women required hysterectomies within three months post-UAE, indicating that the procedure is relatively safe with a low complication rate.
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The objectives of this study were to identify the presence/absence and location of any embolic material and to describe the morphologic appearance of the leiomyoma and adjacent tissues of cases undergoing surgical intervention following uterine artery embolization (UAE) for leiomyomas. A total of 555 women underwent UAE using polyvinyl alcohol particles (PVA) in a multicenter clinical trial. The histopathologic slides from 17 of 18 women who subsequently underwent myomectomy or hysterectomy in the follow-up period (median 8.

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Objective: To evaluate fibroid uterine volume reduction, symptom relief, and patient satisfaction with uterine artery embolization (UAE) for symptomatic fibroids.

Design: Multicenter, prospective, single-arm clinical treatment trial.

Setting: Eight Ontario university and community hospitals.

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Objective: To determine baseline characteristics of women undergoing uterine artery embolization (UAE) for symptomatic fibroids.

Design: Multicenter, prospective, single-arm clinical treatment trial.

Setting: Eight Ontario university and community hospitals.

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