Evidence map›Paper›PMID 33717896›Full record

ArticleJournal of clinical orthopaedics and trauma2021

Partial warfarin reversal prior to hip fracture surgical intervention in geriatric trauma patients effects on blood loss and transfusions.

Richard Meinig, David Cornutt, Stephanie Jarvis, Kristin Salottolo, Michael Kelly, Paul Harrison, Michelle Nentwig, Steven Morgan, Nnamdi Nwafo, Patrick McNair and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical orthopaedics and trauma, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.4field-weighted citation impact, top 32% 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, 3 citations in OpenAlex.

  1. 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

13 authors at 8 institutions in 1 country.

Richard MeinigOrthopedic Surgery and Trauma, Penrose Hospital, 1263 Lake Plaza Dr, Colorado Springs, CO, 80906, USA.
David CornuttEmergency Medicine, Regional West Medical Center, 4021 Avenue B, Scottsbluff, NE, 69361, USA.
Stephanie JarvisInjury Outcomes Network (ION) Research, 501 E. Hampden Ave, Englewood, CO, 80113, USA.
Kristin SalottoloInjury Outcomes Network (ION) Research, 501 E. Hampden Ave, Englewood, CO, 80113, USA.
Michael KellyOrthopedic Surgery and Trauma, Penrose Hospital, 1263 Lake Plaza Dr, Colorado Springs, CO, 80906, USA.
Paul HarrisonGeneral, Trauma, & Orthopedic Surgery, Wesley Medical Center, 3242 E. Murdock Street, Wichita, KS, 67208, USA.
Michelle NentwigGeneral, Trauma, & Orthopedic Surgery, Wesley Medical Center, 3242 E. Murdock Street, Wichita, KS, 67208, USA.
Steven MorganOrthopedic Surgery, Internal Medicine, Swedish Medical Center, 501 E Hampden Ave, Englewood, CO, 80113, USA.
Nnamdi NwafoOrthopedic Surgery, Internal Medicine, Swedish Medical Center, 501 E Hampden Ave, Englewood, CO, 80113, USA.
Patrick McNairOrthopedic Sports Medicine and Trauma, St. Anthony Hospital, 11600 West 2nd Plaza, Lakewood, CO, 80228, USA.
Rahul BanerjeeOrthopaedic Trauma, Medical City Plano, 1600 Coit Rd Suite 104, Plano, TX, 75075, USA.
Bradley WoodsGeneral Surgery, Research Medical Center, 2316 East Meyer Boulevard, Kansas City, MO, 64132, USA.
David Bar-OrInjury Outcomes Network (ION) Research, 501 E. Hampden Ave, Englewood, CO, 80113, USA.
Health Outcomes Solutions (United States) · USPenrose Hospital · USSwedish Medical Center · USWesley Medical Center · USPlano Cancer Institute · USRegional West Medical Center · USResearch Medical Center · USSt. Anthony Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWarfarin reversal is typically sought prior to surgery for geriatric hip fractures; however, patients often proceed to surgery with partial warfarin reversal. The effect of partial reversal (defined as having an international normalized ratio [INR] > 1.5) remains unclear.

methodsThis was a retrospective cohort study. Geriatric patients (≥65 y/o) admitted to six level I trauma centers from 01/2014-01/2018 with isolated hip fractures requiring surgery who were taking warfarin pre-injury were included. Warfarin reversal methods included: vitamin K, factor VIIa, (a)PCC, fresh frozen plasma (FFP), and the "wait and watch" method. An INR of ≤ 1.5 defined complete reversal. The primary outcome was the volume of blood loss during surgery; other outcomes included packed red blood cell (pRBC) and FFP transfusions, and time to surgery.

resultsThere were 135 patients, 44% partially reversed and 56% completely reversed. The median volume of blood loss was 100 mL for both those completely and partially reversed, p = 0.72. There was no difference in the proportion of patients with blood loss by study arm, 95% vs. 95%, p > 0.99. Twenty-five percent of those completely reversed and 39% of those partially reversed had pRBCs transfused, p = 0.08. Of those completely reversed 5% received an FFP transfusion compared to 14% of those partially reversed, p = 0.09. There were no statistically significant differences observed for the volume of pRBC or FFP transfused, or for time to surgery.

conclusionsPartial reversal may be safe for blood loss and blood product transfusions for geriatric patients with isolated hip fractures. Complete warfarin reversal may not be necessary prior to hip fracture surgery, especially for mildly elevated INRs.

Indexed as

AAOS, American Academy of Orthopedic SurgeonsANOVA, analysis of varianceaPCC, activated prothrombin complex concentratesCVA, cerebrovascular accidentDOAC, direct oral anticoagulantsDVT, deep vein thrombosisFFP, fresh frozen plasmaGeriatricHIPAA, health insurance accountability and assurance actHip fractureHLOS, hospital length of stayICD, international classification of diseasesICU LOS, intensive care unit length of stayINR, international normalized ratioION, Injury Outcomes NetworkIQR, interquartile rangeIV, intravenousMI, myocardial infarctionmL, millilitersPCC, prothrombin complex concentratesPE, pulmonary embolismpRBC, packed red blood cellsReversalSD, standard deviationTQIP, Trauma Quality Improvement ProgramTraumaWarfarin

Identifiers

PMID33717896
PMCPMC7920139
OpenAlexW3089755553

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.