Evidence map›Paper›PMID 42717136›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2026

Clinical, Laboratory and Radiological Factors associated with posterior reversible encephalopathy syndrome (PRES) in patients with eclampsia or pre-eclampsia: a systematic review and meta-analysis.

Mahnoor Zafarullah, Pranjal Kumar Singh, Ahmed Harb, Siraj Ul Muneer, Muhammad Nouman Javed, Mizhgan Abid, Syeda Nimra Qadri, Hafsa Arshad Azam Raja, Imad Akbar, Muhammad Hamza

Abstract readSystematic ReviewMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Mahnoor ZafarullahShifa College of Medicine, Islamabad, Pakistan. mzr.zfr@gmail.com.ORCID http://orcid.org/0009-0008-1206-8682
Pranjal Kumar SinghKirori Mal College, University of Delhi, Delhi, India.ORCID http://orcid.org/0009-0009-8921-2248
Ahmed HarbFaculty of Medicine, Al-Azhar University, Cairo, Egypt.ORCID http://orcid.org/0009-0000-6161-0783
Siraj Ul MuneerShaikh Khalifa Bin Zayed Al Nahyan Medical and Dental College, Lahore, Pakistan.ORCID http://orcid.org/0000-0001-5281-0716
Muhammad Nouman JavedPunjab Medical College, Faisalabad Medical University, Faisalabad, Pakistan.ORCID http://orcid.org/0009-0001-6516-4052
Mizhgan AbidKhyber Girls Medical College, Peshawar, Pakistan.ORCID http://orcid.org/0009-0006-7664-3960
Syeda Nimra QadriFaculty of Medicine, Dow University of Health Sciences, Karachi, Pakistan.ORCID http://orcid.org/0009-0008-6646-391X
Hafsa Arshad Azam RajaRawalpindi Medical University, Rawalpindi, Pakistan.ORCID http://orcid.org/0000-0003-0794-7013
Imad AkbarMassachusetts General Hospital, Boston, USA.
Muhammad HamzaSaidu Medical College, Swat, Pakistan.ORCID http://orcid.org/0009-0002-2074-6734

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPosterior reversible encephalopathy syndrome (PRES) remains a serious neurological complication associated with eclampsia/pre-eclampsia. Early identification remains challenging due to heterogeneous presentations and limited consensus on associated clinical and laboratory factors. Therefore, we aimed to assess clinical and laboratory factors associated with PRES by pooling data from primary studies.

methodsA systematic review was conducted following PRISMA 2020 guidelines. PubMed, Embase, and Web of science were searched from inception to March 25, 2025. Primary outcomes included PRES incidence, while secondary outcomes included biomarkers, maternal and fetal outcomes, and imaging characteristics. Risk of bias was assessed using Newcastle Ottawa's scale and National Institutes of Health (NIH) tool. A random-effects model was employed for meta-analysis.

resultsA total of 28 studies were included. The pooled incidence of PRES was 38.68% (95% CI: 29.63-48.59), with significant heterogeneity (I²=98.5%). Patients with PRES had significantly higher liver enzymes (ALT: MD 35.88 IU/L; AST: MD 48.69 IU/L) and lower platelet counts (MD: -31.15 × 10⁹/L). Total bilirubin was also elevated. Maternal mortality risk was increased but not statistically significant (RR: 4.06), while stillbirth and preterm birth showed no significant associations. Imaging findings commonly involved the frontal (43.05%) and temporal lobes (20.33%).

conclusionPRES is a frequent complication of pre-eclampsia and eclampsia, with identifiable clinical and biochemical factors associated with its occurrence, particularly elevated liver enzymes and thrombocytopenia. Despite substantial heterogeneity, these findings may help inform clinical assessment, especially in resource-limited settings. Further high-quality prospective studies are needed to develop standardized predictive models and improve early detection.

Indexed as

EclampsiaPosterior Leukoencephalopathy SyndromePre-EclampsiaFemaleHumansPregnancyEclampsiaNeuroimagingPosterior reversible encephalopathy syndrome (PRES)Pre-eclampsiaRisk factors

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.