HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Study of clinical applications and safety for Pascal® laser photocoagulation in retinal vascular disorders.

AbstractPURPOSE:
To establish safe laser parameter standards for 10-30 ms Pascal(®) laser in clinical practice and to evaluate clinical and visual outcomes using this 532-nm multi-spot photocoagulation system.
METHODS:
Retrospective observational case series of 313 patients treated between 2006 and 2008. Evaluation of eight groups: A - panretinal photocoagulation (PRP) for proliferative diabetic retinopathy (PDR); B - focal laser treatment for clinically significant diabetic macular oedema; C - grid laser for diffuse diabetic macular oedema; D - sector PRP for ischaemic branch retinal vein occlusions (I-BRVO); E - full PRP for ischaemic central retinal vein occlusions (I-CRVO); F - macular laser treatment for macular oedema secondary to non-ischaemic BRVO; G - full PRP for rubeosis iridis and/or neovascular glaucoma (NVG) secondary to I-BRVO, I - CRVO or PDR; H - laser retinopexy for retinal breaks/degenerations.
RESULTS:
Mean LogMAR visual acuity for all procedures improved postlaser (p = 0.065), and laser prevented visual loss in 85% eyes. Topical anaesthesia was only required. At mean follow-up of 5 months, 72% procedures had a successful clinical outcome. Significantly higher powers were required for PRP using Pascal(®) compared to conventional laser (p = 0.001) in PDR, I-BRVO, I-CRVO and NVG. Sixty-seven per cent of patients (15/20) were successfully treated with single-session 20-ms PRP using a mean 1952 burns. There were no laser-associated adverse effects or ocular complications associated with multi-spot PRP or macular Pascal(®) arrays.
CONCLUSIONS:
The clinical efficacy using 10- to 30-ms pulse duration Pascal(®) laser is comparable to conventional standard protocols used for the treatment of vascular retinal disorders. Higher power, 10- to 30-ms pulse duration laser may be safely and effectively used in clinical practice.
AuthorsMahiul M K Muqit, Chintan Sanghvi, Rita McLauchlan, Christine Delgado, Lorna B Young, Stephen J Charles, George R Marcellino, Paulo E Stanga
JournalActa ophthalmologica (Acta Ophthalmol) Vol. 90 Issue 2 Pg. 155-61 (Mar 2012) ISSN: 1755-3768 [Electronic] England
PMID20163363 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Copyright© 2010 The Authors. Acta Ophthalmologica © 2010 Acta Ophthalmologica Scandinavica Foundation.
Topics
  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Anesthesia, Local
  • Blindness (prevention & control)
  • Female
  • Fluorescein Angiography
  • Follow-Up Studies
  • Humans
  • Laser Coagulation (adverse effects, methods)
  • Male
  • Middle Aged
  • Retinal Diseases (physiopathology, surgery)
  • Retinal Vessels (physiopathology, surgery)
  • Retrospective Studies
  • Treatment Outcome
  • Visual Acuity (physiology)
  • Young Adult

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: