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The relationship of birth weight, gestational age, and postmenstrual age with ocular biometry parameters in premature infants / A relação entre o peso ao nascer, idade gestacional e idade pós-menstrual com a biometria ocular em bebês prematuros
Ozdemir, Ozdemir; Tunay, Zuhal Ozen; Acar, Damla Erginturk; Erol, Muhammet Kazım; Sener, Ender; Acar, Ugur.
  • Ozdemir, Ozdemir; Zekai Tahir Burak Women’s Health Education and Research Hospital. Ophthalmology Department. Ankara. TR
  • Tunay, Zuhal Ozen; Zekai Tahir Burak Women’s Health Education and Research Hospital. Ophthalmology Department. Ankara. TR
  • Acar, Damla Erginturk; Zekai Tahir Burak Women’s Health Education and Research Hospital. Ophthalmology Department. Ankara. TR
  • Erol, Muhammet Kazım; Zekai Tahir Burak Women’s Health Education and Research Hospital. Ophthalmology Department. Ankara. TR
  • Sener, Ender; Zekai Tahir Burak Women’s Health Education and Research Hospital. Ophthalmology Department. Ankara. TR
  • Acar, Ugur; Zekai Tahir Burak Women’s Health Education and Research Hospital. Ophthalmology Department. Ankara. TR
Arq. bras. oftalmol ; 78(3): 146-149, May-Jun/2015. tab, graf
Article in English | LILACS | ID: lil-753019
ABSTRACT
ABSTRACT

Purpose:

To analyze ocular biometry parameters and evaluate their relationship with gestational age, birth weight, and postmenstrual age in prematurely born infants.

Methods:

The right eyes of 361 premature infants born before the 36th gestational week were evaluated. Birth weight, gestational week, and gender were recorded. An A-scan Biometer was used for obtaining axial measurements, including anterior chamber depth, lens thickness, vitreous length, and total axial length.

Results:

Gestational age and birth weight values ranged from 23 to 36 weeks and from 560 to 2,670 g, respectively. The mean gestational age and birth weight were 30.8 ± 2.8 weeks and 1,497.9 ± 483.6 g, respectively. During the first examination (4-5 weeks of postnatal age), birth weight and gestational age of the infants correlated significantly and positively with lens thickness, vitreous length, and axial length (r>0.5, p<0.001), but not with anterior chamber depth (r<0.5). Increased vitreous and axial lengths correlated significantly with increasing postmenstrual age of the infants (r=0.669, p<0.001; r=0.845, p<0.001, respectively).

Conclusions:

Lens thickness, vitreous length, and axial length, but not anterior chamber depth, were significantly correlated with birth weight and gestational age. All four parameters increased with increasing postmenstrual age, with higher correlations for vitreous and axial lengths than for anterior chamber depth and lens thickness. It was concluded that axial elongation resulted primarily from increasing posterior chamber length. .
RESUMO
RESUMO

Objetivo:

Medir os comprimentos axiais dos componentes oculares e avaliar a relação com a idade gestacional, peso ao nascer e idade pós-menstrual em crianças nascidas prematuramente.

Método:

O olho direito de 361 crianças prematuras, que nasceram com menos de 36 semanas de gestação, foram avaliados. O peso ao nascer, semanas de gestação e gênero foram registrados. Um biômetro A-scan foi utilizado para a obtenção das medidas axiais da profundidade da câmara anterior, espessura do cristalino, comprimento vítreo e comprimento axial total.

Resultados:

A idade gestacional e os valores de peso ao nascimento variaram de 23 a 36 semanas e de 560 a 2.670 g, respectivamente. A idade gestacional e o peso ao nascer foram 30,8 ± 2,8 semanas e 1.497,9 ± 483,6 g. Ao primeiro exame (4 a 5 semanas de idade pós-natal), o peso ao nascimento e a idade gestacional dos recém-nascidos apresentaram correlação positiva, estatisticamente significativa, com a espessura do cristalino, comprimento vítreo e comprimento axial total (r>0,5 p<0,001), mas não com a profundidade da câmara anterior (r<0,5). O alongamento de comprimento vítreo e do comprimento axial total se correlacionaram significativamente com o aumento da idade pós-menstrual dos lactentes (r=0,669; p<0,001 e r=0,845; p<0,001, respectivamente).

Conclusões:

A espessura do cristalino, o comprimento vítreo e o comprimento axial total, mas não profundidade da câmara anterior, foram significativamente correlacionados com o peso ao nascimento e com a idade gestacional. Todos os quatro componentes aumentaram com a idade pós-menstrual, apresentando correlações mais elevadas do comprimento vítreo e comprimento axial total do que da profundidade da câmara anterior e espessura do cristalino. Concluiu-se que o alongamento axial resultou principalmente do aumento do comprimento da câmara posterior. .
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Birth Weight / Retinopathy of Prematurity / Infant, Premature / Gestational Age Type of study: Etiology study / Incidence study / Observational study / Prognostic study / Risk factors Limits: Female / Humans / Infant / Male / Infant, Newborn / Pregnancy Language: English Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2015 Type: Article Affiliation country: Turkey Institution/Affiliation country: Zekai Tahir Burak Women&#8217;s Health Education and Research Hospital/TR

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Full text: Available Index: LILACS (Americas) Main subject: Birth Weight / Retinopathy of Prematurity / Infant, Premature / Gestational Age Type of study: Etiology study / Incidence study / Observational study / Prognostic study / Risk factors Limits: Female / Humans / Infant / Male / Infant, Newborn / Pregnancy Language: English Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2015 Type: Article Affiliation country: Turkey Institution/Affiliation country: Zekai Tahir Burak Women&#8217;s Health Education and Research Hospital/TR