Evidence mapPaperPMID 27048383Full record

ArticleJournal of medical case reports2016

Simvastatin-induced cognitive dysfunction: two case reports.

Chathurie Suraweera, Varuni de Silva, Raveen Hanwella

Open access · goldAbstract readCase Reports
In one paragraph

Article in Journal of medical case reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
4.1field-weighted citation impact, top 7% of its field
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

12 citing papers in PubMed, 34 citations in OpenAlex.

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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

3 authors at 2 institutions in 1 country.

Chathurie SuraweeraUniversity Psychological Medicine Unit, National Hospital of Sri Lanka, Colombo, Sri Lanka. dr.chathurie@gmail.com.ORCID http://orcid.org/0000-0002-7542-5068
Varuni de SilvaDepartment of Psychological Medicine, Faculty of Medicine, Kynsey Road, Colombo 8, Sri Lanka.
Raveen HanwellaDepartment of Psychological Medicine, Faculty of Medicine, Kynsey Road, Colombo 8, Sri Lanka.
University of Colombo · LKNational Hospital of Sri Lanka · LK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSimvastatin is commonly prescribed for hypercholesterolemia to reduce vascular risk in patients. Some of these patients have dementia with cognitive defects of several domains. Although protective effects seem to be present, there is emerging evidence that statins cause cognitive impairment. The role of cholesterol in cognitive function is complex. This is reflected in the effects that statins show on cognition functions. The reduction in cholesterol levels seen with statins is effective in improving learning and memory in some patients. However, there is emerging evidence that statins may worsen cognitive function. Similarly, there are major concerns over whether statins alleviate or worsen cognitive problems. The correlation between cholesterol levels and cognitive function is still controversial, mainly due to a lack of robust evidence. CASE PRESENTATION: We report the cases of two Asian patients who developed cognitive deficits after starting simvastatin. A 32-year-old man and a 54-year-old woman developed different but clear cognitive deficits that reversed after stopping simvastatin.

conclusionsThe possibility of new-onset cognitive dysfunction and the deterioration of existing cognitive deficits should be considered when prescribing simvastatin to patients.

Indexed as

AdultCognitive DysfunctionFemaleHumansHydroxymethylglutaryl-CoA Reductase InhibitorsHypercholesterolemiaMaleMemory DisordersMiddle AgedSimvastatinHydroxymethylglutaryl-CoA Reductase InhibitorsSimvastatinCognitive deficitsMemory lossSimvastatin

Identifiers

PMID27048383
PMCPMC4822314
OpenAlexW2318311483

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.