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Subfoveal Choroidal Thickness in Pre-eclampsia.

Siti Nurhuda Sharudin¹, Rahmah Saaid, Amir Samsudin

¹Department of Ophthalmology, University of Malaya Medical Centre, Kuala Lumpur, Malaysia.

Optometry and Vision Science : Official Publication of the American Academy of Optometry

|February 4, 2020

Summary

Subfoveal choroidal thickness (SFCT) is significantly increased in pre-eclampsia (PE) patients. This finding suggests SFCT may serve as a novel predictive marker for PE severity.

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Area of Science:

Ophthalmology
Obstetrics
Perinatology

Background:

Pre-eclampsia (PE) is a serious pregnancy complication.
Subfoveal choroidal thickness (SFCT) has not been previously studied in relation to PE severity.

Purpose of the Study:

To compare SFCT in women with PE, normal pregnancies, and nonpregnant women.
To correlate SFCT with clinical markers of PE severity.

Main Methods:

A cross-sectional study involving 150 women (50 PE, 50 normal pregnant, 50 nonpregnant).
Spectral domain optical coherence tomography (SD-OCT) used for SFCT measurement.
Measurements included mean arterial blood pressure (MABP), ocular perfusion pressure (OPP), and urine protein-to-creatinine ratio.

Main Results:

SFCT was significantly higher in PE patients compared to normal pregnant and nonpregnant women (P < .001).
SFCT positively correlated with MABP (r=0.464), OPP (r=0.495), and urine protein-to-creatinine ratio (r=0.635) in the PE group.
No significant differences in central corneal thickness, macular thickness, or intraocular pressure (IOP) were found between PE and healthy pregnant groups.

Conclusions:

Subfoveal choroidal thickness is elevated in pre-eclampsia.
Increased SFCT is proportional to established markers of PE severity.
SFCT may represent a novel predictive biomarker for pre-eclampsia severity.