Comparison of two different ultrasound methods of phacoemulsification
American Journal of Ophthalmology, cilt.158, sa.2, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 158 Sayı: 2
- Basım Tarihi: 2014
- Doi Numarası: 10.1016/j.ajo.2014.04.015
- Dergi Adı: American Journal of Ophthalmology
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Maltepe Üniversitesi Adresli: Evet
Özet
Purpose To compare the safety and efficacy of microcoaxial phacoemulsification surgeries performed with the OZil Intelligent Phaco torsional mode (Alcon Laboratories, Inc., Fort Worth, USA) and combined torsional/longitudinal ultrasound mode using 45 degree aperture angled tips. Design Prospective randomized clinical trial. Methods setting: Maltepe University, Istanbul. patient population: Eighty eyes of 80 cataract patients were randomly assigned to 2.2 mm microcoaxial phacoemulsification using the OZil Intelligent Phaco torsional mode (Group 1) or combined torsional/longitudinal ultrasound mode (Group 2). observation procedure: Intraoperative fluid and energy usage and postoperative examinations were evaluated. main outcome measures: Ultrasound time, cumulative dissipated energy, longitudinal and torsional ultrasound amplitudes, mean operation time, mean volume of fluid used, and surgical complications. Results Both groups included 40 eyes. Mean ultrasound time, cumulative dissipated energy, and longitudinal and torsional ultrasound amplitudes in Group 1 were 58.21 ± 33.81 seconds, 7.74 ± 6.23, 0.45 ± 0.30, and 26.30 ± 12.60%, respectively, and these parameters in Group 2 were 64.75 ± 30.23 seconds, 12.61 ± 6.21, 26.32 ± 5.85, and 40.98 ± 8.33%, respectively. Cumulative dissipated energy and longitudinal and torsional amplitudes were found to be significantly lower in Group 1 (P =.001, P <.001, P <.001). Mean volumes of fluid used in Groups 1 and 2 were 73.30 ± 19.87 cc and 107.07 ± 21.82 cc, respectively (P <.001). Conclusion With the aid of a 45 degree aperture angled tip, the OZil Intelligent Phaco torsional mode provided more effective lens removal than the combined torsional/longitudinal ultrasound mode, with a lower cumulative dissipated energy and volume of fluid used. © 2014 by Elsevier Inc. All rights reserved.