Evidence map›Paper›PMID 32158843›Full record

ArticleJPRAS open2018

Blood perfusion in Hewes tarsoconjunctival flaps in pigs measured by laser speckle contrast imaging.

Cu Dinh Ansson, Rafi Sheikh, Ulf Dahlstrand, Jenny Hult, Sandra Lindstedt, Malin Malmsjö

Erratum issuedOpen access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in JPRAS open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.5field-weighted citation impact, top 33% 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

1 citing paper in PubMed, 12 citations in OpenAlex.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Cu Dinh AnssonDepartment of Clinical Sciences Lund, Skåne University Hospital, Lund University, Ögonklinik A, Kioskgatan 1B, SE-221 85 Lund, Sweden.
Rafi SheikhDepartment of Clinical Sciences Lund, Skåne University Hospital, Lund University, Ögonklinik A, Kioskgatan 1B, SE-221 85 Lund, Sweden.
Ulf DahlstrandDepartment of Clinical Sciences Lund, Skåne University Hospital, Lund University, Ögonklinik A, Kioskgatan 1B, SE-221 85 Lund, Sweden.
Jenny HultDepartment of Clinical Sciences Lund, Skåne University Hospital, Lund University, Ögonklinik A, Kioskgatan 1B, SE-221 85 Lund, Sweden.
Sandra LindstedtLund University, Skåne University Hospital, Department of Clinical Sciences Lund, Cardiothoracic Surgery, Lund, Sweden.
Malin MalmsjöDepartment of Clinical Sciences Lund, Skåne University Hospital, Lund University, Ögonklinik A, Kioskgatan 1B, SE-221 85 Lund, Sweden.
Lund University · SESkåne University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHewes flap is a tarsoconjunctival eyelid flap, based at the lateral canthal tendon, and rotated and stretched to repair lateral defects in the lower eyelid commonly following tumor surgery. The aim of the present study was to monitor perfusion in a Hewes flap during reconstruction, which to the best of our knowledge, has not previously been done.

methodsA Hewes tarsoconjunctival eyelid flap was raised and the effects on blood perfusion of rotating the flaps by 90° and 180°, stretching the flaps with a force of 5 or 10 N, and repeated diathermic coagulation was monitored with laser speckle contrast imaging.

resultsRotating the flaps by 90° did not significantly affect perfusion, while further rotation to 180° reduced blood perfusion to 75% of the baseline value. When the tarsoconjunctival flaps were both rotated 90° and stretched with 5 N, the perfusion was reduced even further, to 63%. A further reduction in perfusion, to 36%, was seen when the higher force of 10 N was applied. Diathermy decreased blood perfusion to 56% after being applied once. Successive applications led to further decreases: 43%, 31%, and 15%, after the second, third and fourth applications.

conclusionsPerfusion in Hewes tarsoconjunctival flaps is affected by both rotation and stretching, but some perfusion is maintained despite these manipulations. Diathermy, however, has detrimental effects and should be avoided.

Identifiers

PMID32158843
PMCPMC7061646
OpenAlexW2884697121

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.