Application of HELP in nonarteritic anterior ischemic optic neuropathy: A prospective, randomized, controlled study
Haas, Anton, Walzl, Manfred, Jesenik, Friedrich, Walzl, Berengaria, Berhold, Andrea, Bergloff, Jutta, Feigl, Beatrix, & Faulborn, Jurgen (1997) Application of HELP in nonarteritic anterior ischemic optic neuropathy: A prospective, randomized, controlled study. Graefe's Archive for Clinical and Experimental Ophthalmology, 235(1), pp. 14-19.
BACKGROUND: Heparin-induced extracorporeal LDL/fibrinogen precipitation (HELP) eliminates selectively fibrinogen, LDL, cholesterol, triglycerides and LP(a) from blood plasma using extracorporeal circulation. The reduction of fibrinogen and LDL by about 50% after only one procedure immediately improves the hemorheological situation. METHOD: In a prospective, randomized, controlled study over a period of 3 months, 40 patients with nonarteritic ischemic optic neuropathy (NAION) were randomly assigned to either HELP or hemodilution therapy to determine the efficacy of these two treatments on visual acuity and fields. RESULTS: After transformation of the Snellen acuity into logMAR units the statistical analysis did not show a significant difference between the two groups (P = 0.48). An increase of the visual acuity by two or more lines was obtained in 9 patients (47.4%) of the HELP group, 10 (52.6%) remained stable and none got worse. In the hemodilution group, visual acuity increased in patients (33.4%), 9 (42.8%) remained stable and 5 (23.8%) experienced a decrease. The calculated mean sensitivity of visual fields at baseline improved statistically significantly (P < 0.01) in the HELP group from 6.83 +/- 4.52 dB to 8.27 +/- 4.89 dB, but did not change significantly in the hemodilution group (6.25 +/- 4.12 dB to 6.12 +/- 3.92 dB). CONCLUSION: The HELP system seems to be safe and more effective than hemodilution in improving the hemorheological and the functional situation in NAION and could be a promising regimen in the treatment of NAION.
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|Item Type:||Journal Article|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)|
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Vision Science (111303)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Optical Technology (111302)
|Divisions:||Current > Research Centres > Centre for Health Research|
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 1997 Springer|
|Copyright Statement:||The original publication is available at SpringerLink http://www.springerlink.com|
|Deposited On:||19 Feb 2008|
|Last Modified:||22 Apr 2010 02:34|
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