ArticleDermatology practical & conceptual2025
A Window into the Vascular Endothelium in Covid-19: Nails.
Article in Dermatology practical & conceptual, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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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.
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.
Who cites it
1 citing paper in PubMed.
- Long COVID Mechanisms, Microvascular Effects, and Evaluation Based on Incidence.Life (Basel, Switzerland) · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionEndothelial damage is associated with acute and long-term coronavirus disease 2019 (COVID-19) complications. Proximal nailfold capillaries and nail beds give important clues to microvascular changes associated with endothelial dysfunction.
objectiveWe aimed to use dermoscopy to examine the proximal nailfold capillaries and nail bed of COVID-19 patients and identify microvascular changes.
methodsA prospective study was designed to evaluate the dermoscopic features of proximal nail fold capillaries and nail bed in mild-to-moderate COVID-19 patients and healthy controls between June 2022 and December 2023. The patients underwent their initial dermoscopic examination two weeks after the onset of symptoms, followed by a follow-up evaluation 10-14 months later.
resultsThe study included 46 patients with mild-to-moderate COVID-19 and 62 healthy controls. The presence of avascular areas (P <0.001), meandering capillaries (P = 0.016), microhemorrhages (P = 0.007), and enlarged capillaries (P = 0.009) in the proximal nail fold was significantly higher in COVID-19 patients than in healthy controls. The capillary architecture was disorganized (P = 0.002) and density reduced (P <0.001) in COVID-19 patients compared to healthy controls. In the follow-up examination, microvascular changes were observed to have regressed.
conclusionsProximal nailfold dermoscopy is an effective, low-cost, easily accessible method that enables observation of microvascular changes in COVID-19 patients.
Identifiers
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Registered trials
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.