2005
DOI: 10.1590/s0100-72032005000400002
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Doplervelocimetria das artérias oftálmica e central da retina em gestantes normais

Abstract: Objetivos: avaliar os padrões dos índices doplervelocimétricos das artérias oftálmica e central da retina durante o segundo e terceiro trimestres da gestação normal e comparar os valores obtidos do olho direito e esquerdo das gestantes. Métodos: estudo transversal no qual se avaliaram seis índices doplervelocimétricos das artérias central da retina e oftálmica em 51 gestantes normais, com idades gestacionais entre a 20ª e a 38ª semana. As variáveis analisadas foram os índices de resistência e pulsatilidade (IR… Show more

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Cited by 20 publications
(34 citation statements)
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“…The expected values in the distal testicular artery were described for the resistance index (0.63 to 1.0) and for the pulsatility index (1.3 to 5.9) 25 . Diniz et al 27 reported that the pulsatility index is an important parameter for evaluating arterial stenoses. This index is more representative for small-caliber vessels, since its calculation encompasses other values from the Doppler wave.…”
Section: Analysis Of the Testicular Flowmentioning
confidence: 99%
See 1 more Smart Citation
“…The expected values in the distal testicular artery were described for the resistance index (0.63 to 1.0) and for the pulsatility index (1.3 to 5.9) 25 . Diniz et al 27 reported that the pulsatility index is an important parameter for evaluating arterial stenoses. This index is more representative for small-caliber vessels, since its calculation encompasses other values from the Doppler wave.…”
Section: Analysis Of the Testicular Flowmentioning
confidence: 99%
“…Use of stem cells, cultivation of tissues in the laboratory, correction of errors in collagen synthesis and cell mediators, and supplying of enzymatic and biochemical deficiencies are directions to be taken up are the directions to be taken by those who are studying the surgical correction of hernias 27 . Bendavid 26 stated that in the future it is possible that hernias will be classified as diseases connected with metabolism errors and malnutrition 27 . Until then, it is prudent to state that the implantation of prostheses in young patients undergoing infertility treatment should be considered.…”
Section: Analysis Of the Testicular Flowmentioning
confidence: 99%
“…The Doppler sample volume was adjusted at 2 to 3 mm. 1,2,5,7,[13][14][15][16][17]27 The participants were examined in the supine position by each observer. Gel was applied to the closed eyelid, and the transducer was carefully placed on the eyelid to avoid creating pressure-derived artifacts.…”
Section: Methodsmentioning
confidence: 99%
“…A literatura não mostra diferenças estatisticamente significantes que indiquem a necessidade de avaliação em ambos os olhos, assim como não encontra diferenças relacionadas com a idade gestacional no momento da realização do exame 18,23,[25][26][27] . Outro aspecto avaliado no presente estudo foi a morfologia da onda no traçado do Doppler.…”
Section: Gruposunclassified
“…Esse fato parece ser uma resposta reflexa incomum, uma vez que a autoregulação mantém o fluxo sanguíneo cerebral constante dentro de uma variação da pressão arterial média entre 60mmHg e 150mmHg Há algum tempo é relatada a associação entre pré-eclâmpsia e aumento da resistência vascular orbital, com alterações no Doppler das artérias oftálmicas 18 . Entretanto, são relatados diminuição da resistência orbital e aumento da perfusão orbital na pré-eclâmpsia 10,19 . horas.…”
unclassified