Hyun S Kim1, Jason Tsai, Michael A Jacobs, Ihab R Kamel. 1. The Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. sikhkim@jhmi.edu
Abstract
PURPOSE: To evaluate the feasibility and safety of percutaneous image-guided radiofrequency ablation (RFA) performed with moderate sedation for large symptomatic uterine leiomyomata. MATERIALS AND METHODS: Women with large (>5 cm in diameter) symptomatic subserosal and/or intramural uterine leiomyoma were recruited for a prospective study. Patients underwent percutaneous RFA following UAE. RFA using 5 cm treatment diameter expandable needle electrodes connected to a 460 kHz monopolar RF generator, which was performed with a target temperature and power set at 85 degrees C and 150 watts respectively, with a target temperature ablation time of 10 minutes. Patients were assessed for complications in perioperative and post-procedure periods at 24 hours and 1 month, and for symptom improvements at 6 months. RESULTS: Thirty-five patients (mean 43.8 years +/- 6.2) were recruited. RFA targeting ablation size and temperature was achieved in 97% of the patients (34/35). There were no immediate percutaneous RFA-related complications. There was a self-limiting delayed drainage via the transabdominal RFA access track in one patient (2.9%), a urinary tract infection in one patient (2.9%) and post-embolization/post-ablation symptoms in three patients (8.6%). The mean transformed symptom severity score (SSS) as a part of the uterine fibroid symptom and quality of life (UFS-QOL) assessment shows that the improvements at 1 month were 24.3 points ( P < 0.001) and at 6 months were 40.4 points ( P < 0.001). Mean volume reduction of leiomyomata was 286.8 cm(3) or 56.5% ( P = 0.0015). CONCLUSIONS: Percutaneous image-guided RFA as adjunctive to UAE under moderate sedation is feasible, and appears safe without significant morbidity in the treatment of large uterine leiomyomata.
PURPOSE: To evaluate the feasibility and safety of percutaneous image-guided radiofrequency ablation (RFA) performed with moderate sedation for large symptomatic uterine leiomyomata. MATERIALS AND METHODS:Women with large (>5 cm in diameter) symptomatic subserosal and/or intramural uterine leiomyoma were recruited for a prospective study. Patients underwent percutaneous RFA following UAE. RFA using 5 cm treatment diameter expandable needle electrodes connected to a 460 kHz monopolar RF generator, which was performed with a target temperature and power set at 85 degrees C and 150 watts respectively, with a target temperature ablation time of 10 minutes. Patients were assessed for complications in perioperative and post-procedure periods at 24 hours and 1 month, and for symptom improvements at 6 months. RESULTS: Thirty-five patients (mean 43.8 years +/- 6.2) were recruited. RFA targeting ablation size and temperature was achieved in 97% of the patients (34/35). There were no immediate percutaneous RFA-related complications. There was a self-limiting delayed drainage via the transabdominal RFA access track in one patient (2.9%), a urinary tract infection in one patient (2.9%) and post-embolization/post-ablation symptoms in three patients (8.6%). The mean transformed symptom severity score (SSS) as a part of the uterine fibroid symptom and quality of life (UFS-QOL) assessment shows that the improvements at 1 month were 24.3 points ( P < 0.001) and at 6 months were 40.4 points ( P < 0.001). Mean volume reduction of leiomyomata was 286.8 cm(3) or 56.5% ( P = 0.0015). CONCLUSIONS: Percutaneous image-guided RFA as adjunctive to UAE under moderate sedation is feasible, and appears safe without significant morbidity in the treatment of large uterine leiomyomata.
Authors: Michael A Jacobs; Ronald Ouwerkerk; Ihab Kamel; Paul A Bottomley; David A Bluemke; Hyun S Kim Journal: J Magn Reson Imaging Date: 2009-03 Impact factor: 5.119