Evidence map›Paper›PMID 35141651›Full record

ReviewNorth American Spine Society journal2021

Tranexamic acid dosing strategies and blood loss reduction in multilevel spine surgery: A systematic review and network meta-analysis: Tranexamic acid for multilevel spine surgery.

Roman Rahmani, Amy Singleton, Zachary Fulton, John M Pederson, Thomas Andreshak

Open access · goldAbstract readReview
In one paragraph

Review in North American Spine Society journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
0.8field-weighted citation impact, top 33% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Pooled it
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  4. Trial
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  13. Improving visualization in shoulder arthroscopy.Clinics in shoulder and elbow · 2023
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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

5 authors at 2 institutions in 1 country.

Roman RahmaniMercy Health St. Vincent Medical Center, Orthopedic Surgery Department, 2409 Cherry St, Toledo, OH 43608, USA.
Amy SingletonMercy Health St. Vincent Medical Center, Orthopedic Surgery Department, 2409 Cherry St, Toledo, OH 43608, USA.
Zachary FultonMercy Health St. Vincent Medical Center, Orthopedic Surgery Department, 2409 Cherry St, Toledo, OH 43608, USA.
John M PedersonSuperior Medical Experts, P.O. Box 600545, 1425 Minnehaha Ave E, St. Paul, MN 55106, USA.
Thomas AndreshakMercy Health St. Vincent Medical Center, Orthopedic Surgery Department, 2409 Cherry St, Toledo, OH 43608, USA.
Mercy St. Vincent Medical Center · USMinnesota Medical Association · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFor adults undergoing complex, multilevel spinal surgery, tranexamic acid (TXA) is an antifibrinolytic agent used to reduce blood loss. The optimal dosing of intravenous TXA remains unclear. This systematic review and meta-analysis compare various dosing regimens of intravenous TXA used in patients undergoing multilevel spine surgery (≥2 levels).

methodsPubMed, Cochrane, and EMBASE databases were searched for English language studies published January 2001 through May 2021 reporting use of TXA versus placebo for multilevel spine surgery. Primary outcomes of interest were intraoperative blood loss volume (BLV) and total BLV. A separate random effects model was fit for each outcome measure. Effect sizes were calculated as pooled mean differences (Diff) with corresponding 95% confidence intervals (CIs). Random effects network meta-analyses assessed whether the specific TXA dosing regimen influenced BLV.

resultsSeven studies with 441 patients were included for meta-analysis. Four different TXA dosing regimens were found: 1) 10 mg/kg + 1 mg/kg/h, 2) 10 mg/kg + 2 mg/kg/h, 3) 15 mg/kg, 4) 15 mg/kg + 1 mg/kg/h. Compared to placebo, patients treated with TXA had reduced intraoperative BLV (Diff = -185.0 ml; 95% CI: -302.1, -67.9) and reduced total BLV (Diff = -439.0 ml; 95% CI: -838.5, -39.6). No significant differences in intraoperative BLV among any of the TXA treatment groups was found. Patients given a TXA dose of 15 mg/kg + 1 mg/kg/h had significantly reduced total BLV in comparison to both placebo (Diff = -823.1 ml; 95% CI: -1249.8, -396.4) and a dose of 15 mg/kg (Diff = -581.2; 95% CI: -1106.8, -55.7).

conclusionsThis study found that intravenous TXA is associated with reduced intraoperative and total BLV, but it remains unclear whether there is an optimal TXA dose. Additional trials directly comparing different TXA regimens and administration routes are needed.

Indexed as

Antifibrinolytic agentsBlood loss, SurgicalDoseNetwork meta-analysisRegimenSpineTranexamic acid

Identifiers

PMID35141651
PMCPMC8820071
OpenAlexW3208373419

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.