Evidence map›Paper›PMID 31492949›Full record

ArticleScientific reports2019

Visual impairment in high flow and low flow carotid cavernous fistula.

Md Shahid Alam, Mukesh Jain, Bipasha Mukherjee, Tarun Sharma, Swatee Halbe, Durgasri Jaisankar, Rajiv Raman

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Likelihood of spontaneous closure of cavernous sinus dural arteriovenous fistulas based on clinical and radiological findings.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
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  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
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  11. Carotid cavernous fistula: Redefining the angioarchitecture.Journal of cerebrovascular and endovascular neurosurgery · 2022
    Article
  12. Article
  13. Review
  14. Observation of fundus and optical coherence tomography angiography manifestations in carotid cavernous fistula patients.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021
    Article
  15. Article
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

7 authors.

Md Shahid AlamDepartment of Orbit Oculoplasty Reconstructive and Aesthetic Services, Sankara Nethralaya, Chennai, India.ORCID http://orcid.org/0000-0001-7849-2808
Mukesh JainShri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, India.
Bipasha MukherjeeDepartment of Orbit Oculoplasty Reconstructive and Aesthetic Services, Sankara Nethralaya, Chennai, India.
Tarun SharmaShri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, India.
Swatee HalbeDepartment of Interventional Radiology, Apollo Specialty Hospitals, Vanagram, Chennai, India.
Durgasri JaisankarShri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, India.
Rajiv RamanShri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, India. rajivpgraman@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Our aim is to study the varied posterior segment manifestations, level of visual impairment (VI) and its causes in carotid cavernous fistula (CCF) patients. A retrospective study was done, wherein data was obtained from 48 digital subtraction angiogram (DSA) proven CCF patients. CCF was classified according to Barrow et al., based on DSA into type A (high flow) and types B, C and D (low flow). High flow CCF was present in 8 (16.7%) and low flow CCF was present in 42 (83.3%). Compared to low flow group, patients in high flow group were younger and had a history of trauma (p < 0.05). Posterior segment findings ranged from familiar stasis retinopathy and optic neuropathy (both, glaucomatous and ischemic) to uncommon findings of central retinal artery occlusion, Terson syndrome and combined retinal and choroidal detachment. Retinal vein dilatation was the most common finding in both groups. The high flow CCF group had 6 (75%) patients that had VI. This was acute in 4 (50%) patients and delayed in 2 (25%). In the low flow group 10 (23.8%) of patients had delayed VI. The identification of "3 point sign" is a novel finding of this study, not described before. While none of three findings (disc hyperaemia, retinal vein dilatation and intra-retinal haemorrhage) in isolation were predictive of visual loss, but when present together results in visual loss. Posterior segment changes were varied, some are uncommon and can occur in various combinations. "3 point sign" must be identified at the earliest to prevent visual impairment. The incidence of VI in CCF patients is high.

Indexed as

AdultAngiography, Digital SubtractionCarotid-Cavernous Sinus FistulaFemaleHumansIncidenceIndiaMaleMiddle AgedRetrospective StudiesTertiary Care CentersVision Disorders

Identifiers

PMID31492949
PMCPMC6731213

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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.