Efficacy and safety of green laser photocoagulation for threshold retinopathy of prematurity.

نویسندگان

  • Rodrigo Pessoa Cavalcanti Lira
  • Antônio Bezerra de Melo Calheiros
  • Manuela Maria Valença Cordeiro Barbosa
  • Cristiano Viana de Oliveira
  • Sabrina Lima Siqueira Viana
  • Danielle Cabral Lima
چکیده

PURPOSE To report the efficacy and safety of green laser photocoagulation for threshold retinopathy of prematurity (ROP). METHODS We reviewed the clinical records of the neonates who had undergone green laser photocoagulation for threshold ROP at the Federal University of Pernambuco in Brazil between January 2004 and January 2006. All procedures were conducted with local anesthetic drops. The neonates were monitored throughout the procedure by a neonatologist. A frequency-doubled solid state laser, diode-pumped, with 532 nm wavelength was used. The presence of tunica vasculosa lentis or cataract were excluded before laser treatment. The following preoperative data were obtained for each patient: age, birth weight and the grade of ROP. Postoperative data included complications associated with the laser treatment, grade of ROP and evaluation whether further surgery was necessary due to failure of laser photocoagulation. RESULTS Twenty-two neonates underwent photocoagulation with green laser for threshold ROP. A total of 31 eyes were included in the study. The mean gestational age was 30 +/- 3 weeks and the mean birth weight was 1120 +/- 490 g. Regression of the disease after laser therapy was observed in 30 eyes (96.7%). Despite treatment one eye presented stage 4A. Only 7 eyes required repetitive laser therapy. No adverse effects such as burning anterior segment tissues or bleeding in the anterior chamber occurred. No posterior segment side-effects were observed. Cataract formation was not observed at the last follow-up examination. CONCLUSIONS Green laser photocoagulation remains an effective and safe alternative to red laser photocoagulation and to cryotherapy in the treatment of threshold ROP.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Transpupillary Diode Laser Retinal Photocoagulation for the Treatment of Retinopathy of Prematurity: Experience in Southern Iran

متن کامل

RETINOPATHY of PREMATURITY Transscleral Retinal Photocoagulation (TSRPC) Retinopathy of Prematurity Transscleral Retinal Photocoagulation (TSRPC)

Retinopathy of Prematurity Transscleral Retinal Photocoagulation (TSRPC) The 810 nm diode laser wavelength makes lens-sparing transscleral coagulation of the retina possible, and to evaluate the efficacy and safety of transscleral diode laser coagulation for threshold ROP, the authors performed a controlled clinical study. Forty eyes of 20 preterm infants (gestational age 24-29 weeks, mean 26.8...

متن کامل

Effects of Laser Physical Parameters on Lesion Size in Retinal Photocoagulation Surgery: Clinical OCT and Experimental Study

Introduction: The aim of the present study was to determine burn intensity in retinal laser photocoagulation based on laser parameters; wavelength, power, beam size and pulse duration, using Optical Coherence Tomography (OCT), fundus camera, physical eye model and computer simulation in a clinical study.Materials and Methods: Participants were 10 adult patients between 50-80 years with prolifer...

متن کامل

نتایج ریفرکتیو و آناتومیک فتوکواگولاسیون با لیزر دیود در مبتلایان به رتینوپاتی ناشی از نارسی

Introduction & Objective: Retinopathy of prematurity (ROP) is a major cause of blindness in premature newborns. It accounts for 4% of childhood blindness in developed countries and up to 40% in developing countries. The aim of this study is to report the refractive and anatomical outcome of patients who had undergone laser photocoagulate on for retinopathy of prematurity (ROP). Materials & M...

متن کامل

Cost-effectiveness of treatment for threshold retinopathy of prematurity.

OBJECTIVE Retinopathy of prematurity (ROP) is a leading cause of adverse visual outcomes in premature infants. Both laser photocoagulation and cryotherapy have been demonstrated in clinical trials to be efficacious in reducing the incidence of visual loss occurring secondary to threshold ROP. Visual data recently have become available concerning the long-term clinical efficacy of both treatment...

متن کامل

ذخیره در منابع من

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Arquivos brasileiros de oftalmologia

دوره 71 1  شماره 

صفحات  -

تاریخ انتشار 2008