Ophthalmic artery Doppler as a measure of severe pre‐eclampsia

Diniz, Angélica Lemos Debs; Moron, Antônio Fernandes; Santos, Mário Coutinho dos; Sass, Nelson; Pires, Cláudio Rodrigues; Debs, Cecília Lemos

doi:10.1016/j.ijgo.2007.07.013

Cited by 66 publications

(115 citation statements)

References 21 publications

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“…It is easy to perform, noninvasive, and inexpensive. 7,[14][15][16][17] For a method to be valid, it must have no statistically significant intraobserver or interobserver variability. Reproducibility is one of the main principles of scientific methods.…”

Section: Resultsmentioning

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%

“…After 6 consecutive blood flow velocity waveforms with similar sizes and shapes were obtained, measurements were performed on a single waveform (Figure 1). 1,2,5,7,[13][14][15][16][17] The resistive index, pulsatility index, and peak ratio were measured. The peak ratio was defined as the ratio of the flow velocity of the second peak (after the notch) to that of the initial peak (peak systolic velocity; (peak ratio = peak 2/peak 1; Figure 1).…”

Section: Methodsmentioning

confidence: 99%

“…The peak ratio was defined as the ratio of the flow velocity of the second peak (after the notch) to that of the initial peak (peak systolic velocity; (peak ratio = peak 2/peak 1; Figure 1). 9,10,[13][14][15][16][17] The mean time required for ophthalmic Doppler analysis was approximately 5 minutes.…”

Section: Methodsmentioning

confidence: 99%

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Doppler Velocimetry of the Ophthalmic Artery

Oliveira

Sá

Velarde

et al. 2012

Journal of Ultrasound in Medicine

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Doppler Velocimetry of the Ophthalmic Arteryrbital circulation has been assessed by color Doppler imaging for the last 20 years, and patterns of normality have been described for the orbital vessels. The importance of this examination was first shown in ophthalmologic diseases. 1-3 Hata et al 4 were the first to use Doppler velocimetry of the ophthalmic artery in the assessment of pregnant women. Then several authors evaluated this method during pregnancy, especially in patients with hypertension. 5-17 Ocular Doppler sonography has been shown to be an accurate, objective, and promising method in the evaluation of the severity of preeclampsia, which is the major cause of maternal mortality. [18][19][20] Although several authors have published data for ocular Doppler velocimetry, the reliability of the measurement of ophthalmic Doppler indices (resistive index, pulsatility index, and peak ratio) has not been extensively established. Most studies have evaluated the intraobserver reproducibility. [21][22][23][24][25][26] This study aimed to investigate the interobserver reliability in measuring ophthalmic artery Doppler indices. ORIGINAL RESEARCHObjectives-The aim of this study was to investigate the interobserver reliability for measuring ophthalmic artery Doppler indices.Methods-Healthy women (n = 30) were evaluated. The resistive index, pulsatility index, and peak ratio were determined by two independent observers who were blind to each other. A paired t test was used for the comparison of paired samples in the cases of replication between observers. Pearson product-moment correlation was used to study the relationship between the samples. The Bland-Altman graphic approach was used to investigate the agreement between observers.Results-No significant differences were found between the values obtained by the two independent observers for the resistive index and pulsatility index. The difference observed between the values obtained by the observers for the peak ratio was 0.02.Conclusions-Doppler velocimetry is a reproducible technique for evaluation of the resistive index and pulsatility index. For analysis of the peak ratio, an interval of ±0.02 should be considered for the measurement.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Doppler Velocimetry of the Ophthalmic Artery

Oliveira

Sá

Velarde

et al. 2012

Journal of Ultrasound in Medicine

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“…The increase in neuron cytoplasm pressure is responsible for tonicclonic seizures that characterize eclampsia itself 8,9 .…”

Section: Introductionmentioning

confidence: 99%

Função endotelial, perfusão uterina e fluxo central em gestações complicadas por Pré-Eclampsia

Brandão

Cabral

Leite

et al. 2012

Arq. Bras. Cardiol.

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Background: The physiopathology of Preeclampsia (PE) is characterized by a deficiency in the process of placentation, systemic endothelial dysfunction and Central Nervous System (CNS) hyperflow. From a clinical point of view, it would be interesting to determine the occurrence of these phenomena before the onset of clinical manifestations of the disease, raising the possibility of new methods for predicting PE.

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Hypertensive disorders of pregnancy and long‐term cardiovascular health: FIGO Best Practice Advice

Poon

Nguyen‐Hoang

Smith

et al. 2023

Intl J Gynecology & Obste

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Hypertensive disorders of pregnancy (HDP) are the most common causes of maternal and perinatal morbidity and mortality. They are responsible for 16% of maternal deaths in high‐income countries and approximately 25% in low‐ and middle‐income countries. The impact of HDP can be lifelong as they are a recognized risk factor for future cardiovascular disease. During pregnancy, the cardiovascular system undergoes significant adaptive changes that ensure adequate uteroplacental blood flow and exchange of oxygen and nutrients to nurture and accommodate the developing fetus. Failure to achieve normal cardiovascular adaptation is associated with the development of HDP. Hemodynamic alterations in women with a history of HDP can persist for years and predispose to long‐term cardiovascular morbidity and mortality. Therefore, pregnancy and the postpartum period are an opportunity to identify women with underlying, often unrecognized, cardiovascular risk factors. It is important to develop strategies with lifestyle and therapeutic interventions to reduce the risk of future cardiovascular disease in those who have a history of HDP.

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Ophthalmic artery Doppler as a measure of severe pre‐eclampsia

Abstract: Orbital vascular impedance reduction with orbital hyperperfusion was present in severe pre-eclamptic women compared with mild pre-eclamptic and healthy pregnant women. Ophthalmic Doppler is a novel parameter that may be useful in the diagnosis of severe pre-eclampsia.

Cited by 66 publications

References 21 publications

Doppler Velocimetry of the Ophthalmic Artery

Doppler Velocimetry of the Ophthalmic Artery

Função endotelial, perfusão uterina e fluxo central em gestações complicadas por Pré-Eclampsia

Hypertensive disorders of pregnancy and long‐term cardiovascular health: FIGO Best Practice Advice

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