Evidence map›Paper›PMID 20487594›Full record

Trial reportAnnals of the Royal College of Surgeons of England2010

An audit of the role of vitamin K in the reversal of International Normalised Ratio (INR) in patients undergoing surgery for hip fracture.

Maneesh Bhatia, Gautam Talawadekar, Sailendra Parihar, Andrew Smith

Abstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Annals of the Royal College of Surgeons of England, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Semi-empirical anticoagulation model (SAM): INR monitoring during Warfarin therapy.Journal of pharmacokinetics and pharmacodynamics · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Observational
  10. Article
  11. Article
  12. Article
  13. "Tiers of delay": warfarin, hip fractures, and target-driven care.Geriatric orthopaedic surgery & rehabilitation · 2014
    Article
  14. An evidence-based warfarin management protocol reduces surgical delay in hip fracture patients.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2014
    Observational
  15. Review
  16. Appropriateness of Using Vitamin K for the Correction of INR Elevation Secondary to Hepatic Disease in Critically ill Patients: An Observational Study.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Observational
  17. Review
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

4 authors.

Maneesh BhatiaDepartment of Trauma and Orthopaedics, William Harvey Hospital, Ashford, UK.
Gautam Talawadekar
Sailendra Parihar
Andrew Smith

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe objective of this prospective audit was to compare two methods of anticoagulation reversal in the pre-operative period for hip fracture patients. PATIENTS AND

methodsIn the first part of the audit, our current practice was analysed. Data relating to the number of days from admission to surgery and the reasons for delay to surgery were collected. Also, data concerning common reasons for which the patients were started on warfarin and the time required for INR to drop to 1.5 or below were collected. In the second part of the audit, 45 patients with INR above 1.5 were given a single dose of vitamin K (1 mg i.v.) in addition to stopping warfarin.

resultsThe mean difference in the time for INR < 1.5 in the two groups was 2 days (52 h; P < 0.05). The mean difference in wait for surgery since admission between the two groups was 4 days (91 h; P < 0.05). There was no significant difference between the two groups as regards the average number of co-morbidities in the patient groups.

conclusionsA single 1 mg intravenous dose of vitamin K significantly reduces the time for the reversal of INR and the pre-operative delay to surgery, in patients on long-term warfarin. We conclude that 1 mg of intravenous vitamin K on admission is a safe and effective treatment to avoid delay in the treatment in this group of patients.

Indexed as

AgedAnticoagulantsAntifibrinolytic AgentsBlood CoagulationFemaleFemoral Neck FracturesFracture FixationHumansInternational Normalized RatioMaleMedical AuditPractice Guidelines as TopicPreoperative CarePreoperative PeriodVitamin KWarfarinAnticoagulantsAntifibrinolytic AgentsVitamin KWarfarin

Identifiers

PMID20487594
PMCPMC3182787

What OpenQuestion holds

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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.