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Revista Española de Anestesiología y Reanimación (English Edition) A comparative study of optic nerve sheath diameter and Lung Ultrasound score in ...
Journal Information
Vol. 72. Issue 8.
(October 2025)
Original article
A comparative study of optic nerve sheath diameter and Lung Ultrasound score in healthy and preeclampsia parturients
Estudio comparativo del diámetro de la vaina del nervio óptico y la puntuación Lung Ultrasound en parturientas sanas y con preeclampsia
A. Nagpal, M. Pandey, N. Kumar
Corresponding author
kumarnishant@yahoo.co.uk

Corresponding author.
Department of Anaesthesiology and Critical Care, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
Article information
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Figures (2)
Tables (5)
Table 1. Lung Ultrasound Score for extravascular lung water assessment for each zone.
Tables
Table 2. Parturient characteristics, ONSD and LUSS.
Tables
Table 3. ONSD and LUSS in mild, severe preeclampsia and healthy parturients.
Tables
Table 4. LUSS of individual regions.
Tables
Table 5. Receiver operating characteristic of ONSD and LUSS for predicting pre-eclampsia.
Tables
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Abstract
Background

Complications of preeclampsia include cerebral and pulmonary edema which strongly correlate with optic nerve sheath diameter (ONSD) and lung ultrasound score (LUSS) respectively. This study was conducted to compare ONSD and LUSS in healthy and preeclamptic parturients.

Methods

In this prospective observational analytical study, 35 healthy pregnant women and preeclamptic women each underwent ultrasound assessment for ONSD and LUSS (12 region lung technique). Severity of preeclampsia was noted. ROC analysis was performed to obtain a cutoff value for both ONSD and LUSS to predict complications of preeclampsia. A p-value of <0.05 was considered significant.

Results

Mean ONSD and LUSS were higher in preeclamptic compared to healthy parturients [5.06 ± 0.46 vs 4.24 ± 0.38 mm (p < 0.0001) and [5 (1–12) vs 0 (0–1.5); p value <0.0001], respectively. Mean ONSD in severe pre-eclampsia (5.36 ± 0.32 mm) was significantly higher as compared to mild pre-eclampsia (4.71 ± 0.35 mm; p < 0.0001). Women with severe preeclampsia had a higher LUSS as compared to the mild preclamptics and healthy parturients. However, no difference in ONSD and LUSS between mild preeclamptics and healthy parturients was observed. A mean ONSD of >4.65 mm and LUSS of >2 could predict preeclampsia with a sensitivity of 77.14% and 68.57% and specificity of 91.43% and 85.71% with an AUC of 0.907 and 0.806 respectively.

Conclusion

Both ONSD and LUSS can be used to assess severity and complications of preeclampsia. Early detection can be used to treat, guide fluid therapy and monitor response to treatment.

CTRI registration

CTRI/2019/12/022243 (https://ctri.nic.in/Clinicaltrials/pmaindet2.php?trialid=37940&EncHid=&userName=). IEC: LHMC/IEC/Thesis/2019/116 dated 29/10/2019.

Keywords:
Preeclampsia
Ultrasound
Pregnant women
Optic nerve sheath diameter
Lung ultrasound
Parturient
Resumen
Antecedentes

Las complicaciones de la preeclampsia incluyen edema cerebral y pulmonar, que están fuertemente correlacionados con el diámetro de la vaina del nervio óptico (DVNO) y la puntuación LUS (lung ultrasound score) respectivamente. Este estudio fue realizado para comparar DVNO y LUS en parturientas sanas y mujeres con preeclamsia.

Métodos

En este estudio analítico observacional prospectivo, evaluamos ecográficamente el DVNO y la puntuación LUS en 35 embarazadas sanas y mujeres con preeclamsia (técnica pulmonar de 12 regiones), y registramos la gravedad de la preeclampsia. Se realizó un análisis ROC para obtener un valor de corte de DVNO y LUS, a fin de predecir las complicaciones de la preeclampsia. Se consideró significativo un valor p < 0,05.

Resultados

El valor medio de DVNO y LUS fue más alto en mujeres con preeclamsia que en parturientas sanas (5,06 ± 0,46 vs 4,24 ± 0,38 mm (p < 0,0001)] y [5 (1-12) vs 0 (0-1,5); valor p < 0,0001], respectivamente. El valor medio de DVNO en la preeclamsia grave (5,36 ± 0,32 mm) fue significativamente más alto en comparación con la preeclampsia leve (4,71 ± 0,35 mm; p < 0,0001). Las mujeres con preeclamsia grave tuvieron una puntuación LUS más alta, en comparación con la preeclampsia leve y las parturientas sanas. Sin embargo, no se observaron diferencias en cuanto a DVNO y LUS entre las mujeres con preeclamsia leve y las parturientas sanas. Un valor medio de DVNO de >4,65 mm y LUSS de >2 podría predecir la preeclampsia con una sensibilidad del 77,14% y 68,57% y una especificidad del 91,43% y 85,71%, con un ABC de 0,907 y 0,806 respectivamente.

Conclusión

Tanto DVNO como LUS pueden utilizarse para evaluar la gravedad y las complicaciones de la preeclamsia. La detección temprana puede utilizarse para tratar, guiar la fluidoterapia y supervisar la respuesta al tratamiento.

Palabras clave:
Preeclamsia
Ecografía
Mujeres embarazadas
Diámetro de la vaina del nervio óptico
Ecografía pulmonar
Parturienta

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