Evidence map›Paper›PMID 24647802›Full record

ArticlePloS one2014

Isolated insular strokes and plasma MR-proANP levels are associated with newly diagnosed atrial fibrillation: a pilot study.

Karl Frontzek, Felix Fluri, Jakob Siemerkus, Beat Müller, Achim Gass, Mirjam Christ-Crain, Mira Katan

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00390962 (Copeptin as a Novel Diagnostic and Prognostic Marker in the Management of Neurological and Neurosurgical Patients With Sodium Imbalance The "COSMOS"-Study), which is not on this map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 15% 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.

NCT00390962 completednot on this map

Copeptin as a Novel Diagnostic and Prognostic Marker in the Management of Neurological and Neurosurgical Patients With Sodium Imbalance The "COSMOS"-Study (Copeptin in Osmoregulation and Stress Assessment)

TypeobservationalSponsorUniversity Hospital, Basel, SwitzerlandRan2006 to 2008Enrolled469ConditionsStroke, Transient Ischemic Attack
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Insular involvement and atrial fibrillation first detected after ischemic stroke: a systematic review and meta-analysis.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Review
  3. Predictive Value of Blood and Echocardiographic Indicators for Nonvalvular Atrial Fibrillation in Postmenopausal Women.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2025
    Article
  4. Observational
  5. Review
  6. Article
  7. Article
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  9. Article
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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

7 authors at 4 institutions in 2 countries.

Karl FrontzekInstitute of Neuropathology, University Hospital Zurich, Zurich, Switzerland; Department of Neurology, University Hospital Basel, Basel, Switzerland.
Felix FluriDepartment of Neurology, University Hospital Basel, Basel, Switzerland; Department of Neurology, University Hospital Zurich, Zurich, Switzerland.
Jakob SiemerkusUniversity Hospital of Psychiatry, Zurich, Switzerland.
Beat MüllerMedical University Clinic, Cantonal Hospital Aarau, Aarau, Switzerland.
Achim GassDepartment of Neurology, University Hospital Mannheim, Mannheim, Germany.
Mirjam Christ-CrainDepartment of Endocrinology, University Hospital Basel, Basel, Switzerland.
Mira KatanDepartment of Neurology, University Hospital Zurich, Zurich, Switzerland.
University Hospital of Zurich · CHUniversity Hospital of Basel · CHKantonsspital Aarau · CHUniversity Medical Centre Mannheim · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn this study, we assessed the relationship of insular strokes and plasma MR-proANP levels with newly diagnosed atrial fibrillation (NDAF).

methodsThis study is based on a prospective acute stroke cohort (http://www.clinicaltrials.gov, NCT00390962). Patient eligibility was dependent on the diagnosis of acute ischemic stroke, absence of previous stroke based on past medical history and MRI, no history of AF and congestive heart failure (cohort A) and, additionally, no stroke lesion size ≥ 20 mL (sub-cohort A*). AF, the primary endpoint, was detected on 24-hour electrocardiography and/or echocardiography. Involvement of the insula was assessed by two experienced readers on MRI blinded to clinical data. MR-proANP levels were obtained through a novel sandwich immunoassay. Logistic-regression-models were fitted to estimate odds ratios for the association of insular strokes and MR-proANP with NDAF. The discriminatory accuracy of insular strokes and MR-proANP was assessed by a model-wise comparison of the area under the receiver-operating-characteristics-curve (AUC) with known predictors of AF.

results104 (cohort A) and 83 (cohort A*) patients fulfilled above-mentioned criteria. Patients with isolated insular strokes had a 10.7-fold higher odds of NDAF than patients with a small ischemic stroke at any other location. The AUC of multivariate logistic regression models for the prediction of NDAF improved significantly when adding stroke location and MR-proANP levels. Moreover, MR-proANP levels remained significantly elevated throughout the acute hospitalization period in patients with NDAF compared to those without.

conclusionsIsolated insular strokes and plasma MR-proANP levels on admission are independent predictors of NDAF and significantly improve the prediction accuracy of identifying patients with NDAF compared to known predictors including age, the NIHSS and lesion size. To accelerate accurate diagnosis and enhance secondary prevention in acute stroke, higher levels of MR-proANP and insular strokes may represent easily accessible indicators of AF if confirmed in an independent validation cohort.

Indexed as

AgedAged, 80 and overAtrial FibrillationAtrial Natriuretic FactorFemaleHumansMaleMiddle AgedPilot ProjectsProspective StudiesStrokeAtrial Natriuretic Factormidregional pro-atrial natriuretic peptide, human

Identifiers

PMID24647802
PMCPMC3960255
OpenAlexW2083617394

What OpenQuestion holds

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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 OpenQuestion graph.