Evidence map›Paper›PMID 34141573›Full record

ArticleJournal of clinical orthopaedics and trauma2021

Higher altitude leads to increased risk of venous thromboembolism after acetabular and pelvic ring injury.

Matthew S Broggi, Camilla J Yoon, Jerad Allen, Michael Maceroli, Thomas Moore, Mara Schenker, Roberto Hernandez-Irizarry

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 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

4 citing papers in PubMed, 8 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. 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

7 authors at 1 institution in 1 country.

Matthew S BroggiEmory University, Department of Orthopaedic Surgery, 59 Executive Park South, Suite 200, Atlanta, GA 30324, USA.
Camilla J YoonEmory University, Department of Orthopaedic Surgery, 59 Executive Park South, Suite 200, Atlanta, GA 30324, USA.
Jerad AllenEmory University, Department of Orthopaedic Surgery, 59 Executive Park South, Suite 200, Atlanta, GA 30324, USA.
Michael MaceroliEmory University, Department of Orthopaedic Surgery, 59 Executive Park South, Suite 200, Atlanta, GA 30324, USA.
Thomas MooreEmory University, Department of Orthopaedic Surgery, 59 Executive Park South, Suite 200, Atlanta, GA 30324, USA.
Mara SchenkerEmory University, Department of Orthopaedic Surgery, 59 Executive Park South, Suite 200, Atlanta, GA 30324, USA.
Roberto Hernandez-IrizarryEmory University, Department of Orthopaedic Surgery, 59 Executive Park South, Suite 200, Atlanta, GA 30324, USA.
Emory University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThere is a high post-operative incidence of venous thromboembolisms (VTEs), specifically deep vein thrombosis (DVT) and pulmonary embolism (PE), in pelvic ring and acetabular fractures, and identification of risk factors for VTEs is crucial to decrease this highly morbid complication. High altitudes have a known physiological effect on the body that may predispose patients to developing VTEs in the postoperative period. The purpose of this study was to investigate the relationship between pelvic ring and acetabular fractures occurring at high altitudes and the development of postoperative VTEs.

methodsIn this retrospective study, the Truven MarketScan claims database was used to identify patients who underwent surgical fixation of a pelvic ring and/or acetabular fracture from January 2009 to December 2018 using Current Procedural Terminology (CPT) codes. Patient characteristics, including medical comorbidities, were collected. The zip codes of where the surgeries took place were used to determine recovery altitude and patients were separated into either the high altitude (>4000 feet) or low altitude (<100 feet) cohorts. Chi-squared and multivariate analyses were performed to investigate the association between altitude and the development of VTE postoperatively.

resultsIn total, 68,923 patients were included for analysis. At 30-days postoperatively, a higher altitude was associated with increased odds of developing a PE (OR 1.47, p = 0.019). At 90-days postoperatively, a higher altitude was associated with increased odds of DVT (OR 1.24, p = 0.029) and PE (OR 1.63, p < 0.001).

conclusionSurgical fixation of pelvic ring and acetabular fractures performed at a higher altitude (>4,000feet) are associated with increased odds of developing a PE in the first 30 days as well as developing a DVT or PE at 90 days postoperatively. Future prospective studies are needed to further elucidate the causality of altitude on the development of postoperative VTEs.

Indexed as

AcetabulumAltitudeDVTPEPelvic ring

Identifiers

PMID34141573
PMCPMC8178120
OpenAlexW3165185156

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.