Evidence map›Paper›PMID 27566185›Full record

Observational studyJapanese journal of ophthalmology2016

Changes in chorioretinal blood flow velocity and cerebral blood flow after carotid endarterectomy.

Hiroshi Enaida, Shinji Nagata, Atsunobu Takeda, Shintaro Nakao, Yasuhiro Ikeda, Tatsuro Ishibashi

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Japanese journal of ophthalmology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

10 citing papers in PubMed, 16 citations in OpenAlex.

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  8. Pulse waveform analysis on temporal changes in ocular blood flow due to caffeine intake: a comparative study between habitual and non-habitual groups.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2018
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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

6 authors at 3 institutions in 1 country.

Hiroshi EnaidaDepartment of Ophthalmology, Faculty of Medicine, Saga University, Saga, 849-8501, Japan. enaida@cc.saga-u.ac.jp.
Shinji NagataDepartment of Neurosurgery, Clinical Research Center, National Hospital Organization, Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan.
Atsunobu TakedaDepartment of Ophthalmology, Clinical Research Center, National Hospital Organization, Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan.
Shintaro NakaoDepartment of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan.
Yasuhiro IkedaDepartment of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan.
Tatsuro IshibashiDepartment of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan.
Kyushu University · JPNational Kyushu Medical Center · JPSaga University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the changes in chorioretinal blood flow velocity and cerebral blood after carotid endarterectomy (CEA).

methodsNine patients with moderate to severe internal carotid artery stenosis underwent CEA. Chorioretinal blood flow velocity was measured by laser speckle flowgraphy (LSFG), while cerebral blood flow (CBF) was measured by single-photon emission computed tomography (SPECT), on the affected side both before and after CEA. LSFG was evaluated in five areas to determine mean blur rate, while CBF was calculated from regional CBF and cerebrovascular reactivity (CVR), at the middle cerebral artery (MCA) region of each patient.

resultsFive cases showed an increase (mean 3.49 %, range -29.82 to 35.59 %) of average chorioretinal blood flow velocity using LSFG after CEA. A particularly averaged increase in chorioretinal blood flow was observed in the macular area compared with other areas. Similarly, there was an increase in CBF at rest (mean 11.46 %, range -14.51 to 74.14 %) observed using SPECT after surgery. Improvement of CVR was confirmed in four cases. All general and visual symptoms disappeared after CEA. Severe adverse effects, including hyperperfusion syndrome, were not observed in any cases.

conclusionsLSFG may be useful for the analysis of chorioretinal blood flow changes after CEA.

Indexed as

AgedAged, 80 and overBlood Flow VelocityCarotid StenosisCerebrovascular CirculationChoroidEndarterectomy, CarotidFemaleFollow-Up StudiesHumansLaser-Doppler FlowmetryMaleMiddle AgedPostoperative PeriodRetinaRetrospective StudiesCarotid endarterectomy (CEA)Cerebral blood flowChorioretinal blood flow velocityLaser speckle flowgraphy (LSFG)Single photon emission computed tomography (SPECT)

Identifiers

PMID27566185
OpenAlexW2515170646

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.