Evidence map›Paper›PMID 26911583›Full record

ArticleBMJ open2016

Predicting the outcome of hip fracture patients by using N-terminal fragment of pro-B-type natriuretic peptide.

Pauliina Nordling, Tuomas Kiviniemi, Marjatta Strandberg, Niko Strandberg, Juhani Airaksinen

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01015105 (Troponin Elevation in Consecutive Patients With Hip Fracture), which is not on this map. Cited by 15 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 4 pooled it
3.6field-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.

NCT01015105 completednot on this map

Troponin Elevation in Consecutive Patients With Hip Fracture

TypeobservationalSponsorTurku University HospitalRan2009 to 2016Enrolled200ConditionsHip FractureArmsobservation
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 4 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Arquivos brasileiros de cardiologia · 2017
    Guideline
  4. Guideline
  5. Article
  6. Observational
  7. Article
  8. Article
  9. Article
  10. Article
  11. History of cardiovascular disease and cardiovascular biomarkers are associated with 30-day mortality in patients with hip fracture.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2019
    Article
  12. Turkish journal of anaesthesiology and reanimation · 2019
    Article
  13. Article
  14. Observational
  15. CORR InsightsClinical orthopaedics and related research · 2017
    Article
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

5 authors at 1 institution in 1 country.

Pauliina NordlingHeart Center, Turku University Hospital and Department of Clinical Medicine, University of Turku, Turku, Finland.
Tuomas KiviniemiHeart Center, Turku University Hospital and Department of Clinical Medicine, University of Turku, Turku, Finland.
Marjatta StrandbergHeart Center, Turku University Hospital and Department of Clinical Medicine, University of Turku, Turku, Finland.
Niko StrandbergDepartment of Orthopedic Surgery, Turku University Hospital, Turku, Finland.
Juhani AiraksinenHeart Center, Turku University Hospital and Department of Clinical Medicine, University of Turku, Turku, Finland.
Turku University Hospital · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo examine the prognostic value of perioperative N-terminal fragment of pro-brain natriuretic peptide (NT-proBNP) in hip fracture patients.

designBlinded prospective cohort study.

settingSingle centre trial at Turku University Hospital in Finland.

participantsInclusion criterion was admittance to the study hospital due to hip fracture during the trial period of October 2009--May 2010. Exclusion criteria were the patient's refusal and inadequate laboratory tests. The final study population consisted of 182 patients. PRIMARY AND SECONDARY OUTCOME MEASURES: NT-proBNP was assessed once during the perioperative period and later if clinically indicated, and troponin T (TnT) and ECG recordings were evaluated repeatedly. The short-term (30-day) and long-term (1000 days) mortalities were studied.

resultsMedian (IQR) follow-up time was 3.1 (0.3) years. The median (IQR) NT-proBNP level was 1260 (2298) ng/L in preoperative and 1600 (3971) ng/L in postoperative samples (p=0.001). TnT was elevated in 66 (36%) patients, and was significantly more common in patients with higher NT-proBNP. Patients with high (>2370 ng/L) and intermediate (806-2370 ng/L) NT-proBNP level had significantly higher short-term mortality compared with patients having a low (<806 ng/L) NT-proBNP level (15 vs 11 vs 2%, p=0.04), and the long-term mortality remained higher in these patients (69% vs 49% vs 27%, p<0.001). Intermediate or high NT-proBNP level (HR 7.8, 95% CI 1.03 to 59.14, p<0.05) was the only independent predictor of short-term mortality, while intermediate or high NT-proBNP level (HR 2.27, 95% CI 1.30 to 3.96, p=0.004), the presence of dementia (HR 1.74, 95% CI 1.13 to 2.66, p=0.01) and higher preoperative American Society of Anesthesiologists' (ASA) classification (HR 1.59, 95% CI 1.06 to 2.38, p=0.02) were independent predictors of long-term mortality.

conclusionAn elevated perioperative NT-proBNP level is common in hip fracture patients, and it is an independent predictor of short-term and long-term mortality superior to the commonly used clinical risk scores. TRIAL REGISTRATION NUMBER: NCT01015105; Results.

Indexed as

AgedAged, 80 and overBiomarkersElectrocardiographyFemaleHip FracturesHumansKaplan-Meier EstimateMaleNatriuretic Peptide, BrainPeptide FragmentsPerioperative PeriodPrognosisProspective StudiesRisk AssessmentTroponin TBiomarkersNatriuretic Peptide, BrainPeptide Fragmentspro-brain natriuretic peptide (1-76)Troponin T

Identifiers

PMID26911583
PMCPMC4769421
OpenAlexW2281627207

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.