Publications by authors named "John Thiel"

Objective: To characterize fellowship training experiences in the 11 Canadian minimally invasive gynaecologic surgery (MIGS) programs and compare the surgical exposure of fellows in these programs to that of the American Association of Gynecologic Laparoscopists (AAGL) accredited fellowship in MIGS (FMIGS).

Methods: In this cross-sectional study, 2017 and 2018 MIGS fellowship graduates across Canada were given a web-based survey via SurveyMonkey software to evaluate 5 key components of postgraduate fellowship curricula: 1) surgical exposure; 2) teaching and evaluation methods; 3) research experience; 4) clinical responsibilities; and 5) pursuit of other academic endeavours. Interest in creating a national standardized curriculum and seeking accreditation for MIGS fellowships were also examined.

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Study Objective: The objective of our study was to provide a contemporary description of hysterectomy practice and temporal trends in Canada.

Design: A national whole-population retrospective analysis of data from the Canadian Institute for Health Information.

Setting: Canada.

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Objectives: To describe treatment choices made at the time of enrollment in CAPTURE, a Canadian patient registry for women with symptomatic uterine fibroids (UFs), and to define demographic and clinical characteristics that independently predict these choices.

Methods: Women arranging appointments for UF care were eligible to enrol. At the time of the enrollment visit, women's self-reported treatment histories were noted, along with their clinical characteristics.

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Background: Supervised exercise therapy (SET) is recommended in patients with symptomatic peripheral arterial disease (PAD) as first-line therapy, although patient adoption remains low. Home-based exercise therapy (HBET) delivered through smartphones may expand access. The feasibility of such programs, especially in low-resource settings, remains unknown.

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Uterine leiomyomas (myomas, fibroids) are very common in premenopausal women and frequently are associated with abnormal uterine bleeding, bulk effects, and reproductive issues. In women who wish to retain their uterus and/or to enhance or retain fertility, interventional therapies have been introduced, including radiofrequency, laser (chromo), cryotherapy, and magnetic resonance (MR)-guided high-intensity focused ultrasound (MRgHIFU) myolysis. In formulating this commentary, all modalities of myolysis from systematic reviews, randomized controlled clinical trials, and observational studies through December 2018 were reviewed.

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Study Objective: To analyze pregnancy delivery and safety outcomes after patient receipt of percutaneous, laparoscopic intra-abdominal ultrasound-guided radiofrequency ablation (Lap-RFA) for symptomatic uterine myomas.

Design: Case series (2010-2017); evidence was obtained from 2 randomized, controlled trials (level I), 6 cohort studies (level II-2), and in commercial settings (level II-3).

Setting: Multiple sites in the United States, Canada, Europe, and Latin America (university hospitals, community hospitals, and stand-alone surgery centers).

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Objective To obtain expert consensus on the patient and fibroid characteristics that affect the complexity of laparoscopic myomectomy (LM) and to use these factors to create a grading tool for objective evaluation of LM procedures. Study design Modified Delphi Methodology Study (Canadian Task Force III). Setting included a series of online surveys via SurveyMonkey (SurveyMonkey Inc.

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Objective: The risk of unexpected uterine leiomyosarcoma (LMS) following surgery for presumed benign leiomyoma is quoted to be between 1 in 498 and 1 in 5000. The objectives of the present study were to determine the prevalence of uterine LMS in a specific patient population and the rate of diagnosis of occult uterine LMS and to evaluate the risk of unintended morcellation of LMS in Saskatchewan.

Methods: This study was a Canadian Task Force Classification II-2 multicentre retrospective cohort study in academic-affiliated tertiary care centres.

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Objective: The objective of this study was to compare laparoscopic ultrasound-guided radiofrequency ablation of fibroids (Lap-RFA) and laparoscopic myomectomy in terms of 1) health care utilization and 2) serious complication rates. The secondary objectives were comparison of subject responses to validated symptom and quality-of-life questionnaires. We hypothesized that Lap-RFA health care utilization and clinical outcomes would not be worse than those of laparoscopic myomectomy in the aggregate.

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Study Objectives: To examine the surgical indications and pathologic findings in patients undergoing a second surgery after placement of the Essure permanent birth control system to determine the role of Essure in developing new-onset pelvic pain.

Design: Retrospective cohort (Canadian Task Force classification II-2).

Setting: Tertiary-level hospital.

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Study Objective: To assess the safety and effectiveness of the Minerva Endometrial Ablation System for the treatment of heavy menstrual bleeding in premenopausal women.

Design: Multicenter, randomized, controlled, international study (Canadian Task Force classification I).

Setting: Thirteen academic and private medical centers.

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Study Objective: The authors present a laparoscopic technique for complete removal of Essure microinserts (including nitinol coil and positron emission tomography fibers).

Design: Step-wise instruction using video. The study was granted a Research Ethics Board exemption because the Regina Qu'Appelle Health Region Research Ethics Board does not require ethics board approval for single case submissions.

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Study Objectives: To examine the imaging modality used in cases of Essure failures and determine the cause of the unintended pregnancies (noncompliance to follow-up recommendations, misinterpretation of the imaging test, or device failure).

Design: Retrospective, single-center interventional cohort (Canadian Task Force classification II-2).

Setting: Tertiary level hospital.

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Increased pressures from multiple sources are leading to earlier patient discharge following surgery. Our objective was to test the feasibility of self-care web applications to inform women if, when, and where to seek help for symptoms after hysterectomy. We asked 31 women recovering at home after hysterectomy at two centers to sign into a website on a schedule.

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Objective: We hypothesize that the shape of the Essure microinsert on ultrasound is able to predict complications evident on hysterosalpingogram (HSG), the accepted gold standard.

Method And Materials: From July 2, 2009 to July 2, 2012, 441 women at our institution received Essure microinsert placement for the purpose of permanent sterilization. 2D and 3D coronal plane transvaginal ultrasounds were performed three months after Essure microinsert placement.

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Background: The evidence on the effect of sleep deprivation on the cognitive and motor skills of physicians in training is sparse and conflicting, and the evidence is nonexistent on surgeons in practice. Work-hour limitations based on these data have contributed to challenges in the quality of surgical education under the apprentice model, and as a result there is an increasing focus on competency-based education. Whereas the effects of alcohol intoxication on psychometric performance are well studied in many professions, the effects on performance in surgery are not well documented.

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Objective: To evaluate procedure-related adverse events, post-procedure menstrual bleeding status, and surgical re-intervention in women with a sounded uterine length > 10 cm compared to women with a sounded uterine length ≤ 10 cm who underwent the NovaSure endometrial ablation procedure.

Methods: We conducted a retrospective cohort study of 188 women from a Canadian community-based gynaecology practice. Eighty-seven women had a sounded uterine length > 10 cm, and 101 patients had a sounded length ≤ 10 cm.

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Study Objective: To assess the ability of a new iteration of the ESSURE insert (ESS505) to achieve short-term fallopian tube occlusion.

Design: Prospective, single center, interventional cohort (Canadian Task Force classification II-1).

Setting: Tertiary care hospital.

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Objective: To assess the success rate, complications, and technical difficulties of concomitant NovaSure radiofrequency global endometrial ablation (NS-GEA) and Essure hysteroscopic sterilization (EHS).

Methods: We conducted a retrospective descriptive study of 100 women undergoing concomitant NS-GEA and EHS for abnormal uterine bleeding. The combined procedure was completed using conscious sedation, in an outpatient setting.

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Objective: To review the use of three-dimensional ultrasound follow-up of the Essure micro-insert placement at three months for the identification of misplaced coils and complications.

Methods: We conducted a retrospective cohort study of reproductive age women requesting permanent sterilization in a tertiary care ambulatory women's clinic. Women who underwent placement of the Essure micro-insert were assessed for appropriate positioning of the Essure micro-insert coil using three-dimensional ultrasound as well as hysterosalpingography when indicated.

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Study Objective: To compare the pain reported by patients during the Essure Micro-Insert sterilization procedure using either intravenous conscious sedation or oral analgesia.

Design: Randomized, double-blind, placebo-controlled trial (Canadian Task Force classification I).

Setting: Tertiary care ambulatory women's clinic.

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