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Comparison of system metrics using minimal threshold ultrasound settings in microcoaxial phacoemulsification

Publication ,  Journal Article
Gupta, PK; Jun, B; Kim, T
Published in: Techniques in Ophthalmology
June 1, 2010

Objective: To determine if minimal threshold torsional ultrasound settings result in improved systemic metrics compared with standard linear torsional ultrasound in microcoaxial phacoemulsification. Materials and methods: Cataracts of similar density, 2+ or greater nuclear sclerosis, in both eyes of 18 patients (N = 36 eyes) needing bilateral cataract surgery were extracted using the OZil torsional handpiece. One eye had surgery performed with standard 100% linear torsional ultrasound (range, 0-100%), and the contralateral eye had surgery performed using threshold torsional ultrasound (range, 30-100%). All other settings were similar in each group. Intraoperative measurements reviewed included cumulative dissipated energy (CDE), infusion fluid use, torsional time, aspiration time, and average torsional amplitude. Results: On average, the CDE, infusion fluid use, aspiration time, and torsional time were significantly lower in the threshold torsional ultrasound setting group compared with the standard linear torsional ultrasound group. Conclusions: Threshold torsional ultrasound settings result in better systemic metrics in patients with 2+ or greater nuclear sclerotic cataracts. Lower CDE, torsional time, and balanced salt solution use may translate into improved clinical outcomes. Further studies are necessary to validate and expand upon these findings. © 2010 by Lippincott Williams & Wilkins.

Duke Scholars

Published In

Techniques in Ophthalmology

DOI

EISSN

1542-1937

ISSN

1542-1929

Publication Date

June 1, 2010

Volume

8

Issue

2

Start / End Page

69 / 71
 

Citation

APA
Chicago
ICMJE
MLA
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Gupta, P. K., Jun, B., & Kim, T. (2010). Comparison of system metrics using minimal threshold ultrasound settings in microcoaxial phacoemulsification. Techniques in Ophthalmology, 8(2), 69–71. https://doi.org/10.1097/ITO.0b013e3181e951f7
Gupta, P. K., B. Jun, and T. Kim. “Comparison of system metrics using minimal threshold ultrasound settings in microcoaxial phacoemulsification.” Techniques in Ophthalmology 8, no. 2 (June 1, 2010): 69–71. https://doi.org/10.1097/ITO.0b013e3181e951f7.
Gupta PK, Jun B, Kim T. Comparison of system metrics using minimal threshold ultrasound settings in microcoaxial phacoemulsification. Techniques in Ophthalmology. 2010 Jun 1;8(2):69–71.
Gupta, P. K., et al. “Comparison of system metrics using minimal threshold ultrasound settings in microcoaxial phacoemulsification.” Techniques in Ophthalmology, vol. 8, no. 2, June 2010, pp. 69–71. Scopus, doi:10.1097/ITO.0b013e3181e951f7.
Gupta PK, Jun B, Kim T. Comparison of system metrics using minimal threshold ultrasound settings in microcoaxial phacoemulsification. Techniques in Ophthalmology. 2010 Jun 1;8(2):69–71.

Published In

Techniques in Ophthalmology

DOI

EISSN

1542-1937

ISSN

1542-1929

Publication Date

June 1, 2010

Volume

8

Issue

2

Start / End Page

69 / 71