Inez M Verpalen1, Kimberley J Anneveldt2, Ingrid M Nijholt3, Joke M Schutte2, Jeroen R Dijkstra2, Arie Franx4, Lambertus W Bartels5, Chrit T W Moonen5, Mireille A Edens6, Martijn F Boomsma3. 1. Department of Radiology, Isala hospital, Zwolle, the Netherlands. Electronic address: i.m.verpalen@isala.nl. 2. Department of Obstetrics and Gynecology, Isala hospital, Zwolle, the Netherlands. 3. Department of Radiology, Isala hospital, Zwolle, the Netherlands. 4. Division Woman and Baby, University Medical Center Utrecht, Utrecht, the Netherlands. 5. Center for Imaging Sciences, University Medical Center Utrecht, Utrecht, the Netherlands. 6. Department of Innovation and Science, Isala hospital, Zwolle, the Netherlands.
Abstract
PURPOSE: Reevaluation of the effectiveness of Magnetic Resonance-High Intensity Focused Ultrasound (MR-HIFU) therapy for uterine fibroids by excluding studies with restrictive treatment protocols that are no longer used. METHODS: The National Guideline Clearinghouse, Cochrane Library, TRIP, MEDLINE, EMBASE and WHO International Clinical Trials Registry Platform (ICTRP) databases were searched from inception until the 22nd of June 2018. Keywords included "MR-HIFU", "MRgFUS", and "Leiomyoma". Only studies about MR-HIFU treatment of uterine fibroids with at least three months of clinical follow-up were evaluated for inclusion. Treatments with ultrasound-guided HIFU devices or protocols not aiming for complete ablation were eliminated. The primary outcome was the improvement in fibroid-related symptoms. Technical outcomes included screening and treatment failures, treatment time, application of bowel-interference mitigation strategies and the Non-Perfused Volume (NPV) percentage. Other secondary outcomes were the quality of life, fibroid shrinkage, safety, re-interventions, reproductive outcomes, and costs. Meta-analysis was performed using a random-effects model (DerSimonian and Laird). RESULTS: A total of 18 articles (1323 treated patients) met the inclusion criteria. All selected studies were case series except for one cross-over trial. Overall, the quality of the evidence was poor to moderate. The mean NPV% directly post-treatment was 68.1%. The use of bowel-interference mitigation strategies may lead to increased NPV%. The mean symptom reduction at 12-months was 59.9% and fibroid shrinkage was 37.7%. The number of adverse events was low (8.7%), stratification showed a difference between HIFU systems. The re-intervention percentage at 3-33.6 months follow-up ranged from 0 to 21%. Longer follow-up was associated with a higher risk at re-interventions. Reproductive outcomes and costs couldn't be analyzed. CONCLUSIONS: Treatment guidelines aiming for complete ablation enhanced the effectiveness of MR-HIFU therapy. However, controlled trials should define the role of MR-HIFU in the management of uterine fibroids.
PURPOSE: Reevaluation of the effectiveness of Magnetic Resonance-High Intensity Focused Ultrasound (MR-HIFU) therapy for uterine fibroids by excluding studies with restrictive treatment protocols that are no longer used. METHODS: The National Guideline Clearinghouse, Cochrane Library, TRIP, MEDLINE, EMBASE and WHO International Clinical Trials Registry Platform (ICTRP) databases were searched from inception until the 22nd of June 2018. Keywords included "MR-HIFU", "MRgFUS", and "Leiomyoma". Only studies about MR-HIFU treatment of uterine fibroids with at least three months of clinical follow-up were evaluated for inclusion. Treatments with ultrasound-guided HIFU devices or protocols not aiming for complete ablation were eliminated. The primary outcome was the improvement in fibroid-related symptoms. Technical outcomes included screening and treatment failures, treatment time, application of bowel-interference mitigation strategies and the Non-Perfused Volume (NPV) percentage. Other secondary outcomes were the quality of life, fibroid shrinkage, safety, re-interventions, reproductive outcomes, and costs. Meta-analysis was performed using a random-effects model (DerSimonian and Laird). RESULTS: A total of 18 articles (1323 treated patients) met the inclusion criteria. All selected studies were case series except for one cross-over trial. Overall, the quality of the evidence was poor to moderate. The mean NPV% directly post-treatment was 68.1%. The use of bowel-interference mitigation strategies may lead to increased NPV%. The mean symptom reduction at 12-months was 59.9% and fibroid shrinkage was 37.7%. The number of adverse events was low (8.7%), stratification showed a difference between HIFU systems. The re-intervention percentage at 3-33.6 months follow-up ranged from 0 to 21%. Longer follow-up was associated with a higher risk at re-interventions. Reproductive outcomes and costs couldn't be analyzed. CONCLUSIONS: Treatment guidelines aiming for complete ablation enhanced the effectiveness of MR-HIFU therapy. However, controlled trials should define the role of MR-HIFU in the management of uterine fibroids.
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Authors: Kimberley J Anneveldt; Heleen J van 't Oever; Inez M Verpalen; Ingrid M Nijholt; Wilbert Bartels; Jeroen R Dijkstra; Rolf D van den Hoed; Miranda van 't Veer-Ten Kate; Erwin de Boer; Sebastiaan Veersema; Judith A F Huirne; Joke M Schutte; Martijn F Boomsma Journal: Eur J Radiol Open Date: 2022-03-21