Evidence map›Paper›PMID 31641804›Full record

ArticleInternational orthopaedics2020

Post-operative urinary retention after lower extremity arthroplasty and the peri-operative role of selective alpha-1 adrenergic blocking agents in adult male patients: a propensity-matched retrospective cohort study.

Manuel F Schubert, Jared R Thomas, Jacob Yashar, John J Lee, Andrew G Urquhart, Joel J Gagnier, Aidin Eslam Pour

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Article in International orthopaedics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 2 pooled it
0.7field-weighted citation impact, top 26% 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, 2 syntheses or guidelines pooled it, 10 citations in OpenAlex.

  1. Pooled it
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  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.

Manuel F SchubertDepartment of Orthopaedic Surgery, University of Michigan, 1500 E. Medical Center Dr, Ann Arbor, MI, 48109, USA.
Jared R ThomasDepartment of Orthopaedic Surgery, University of Michigan, 1500 E. Medical Center Dr, Ann Arbor, MI, 48109, USA.
Jacob YasharDepartment of Orthopaedic Surgery, University of Michigan, 1500 E. Medical Center Dr, Ann Arbor, MI, 48109, USA.
John J LeeDepartment of Orthopaedic Surgery, University of Michigan, 1500 E. Medical Center Dr, Ann Arbor, MI, 48109, USA.
Andrew G UrquhartDepartment of Orthopaedic Surgery, University of Michigan, 1500 E. Medical Center Dr, Ann Arbor, MI, 48109, USA.
Joel J GagnierDepartment of Orthopaedic Surgery, University of Michigan, 1500 E. Medical Center Dr, Ann Arbor, MI, 48109, USA.
Aidin Eslam PourDepartment of Orthopaedic Surgery, University of Michigan, 1500 E. Medical Center Dr, Ann Arbor, MI, 48109, USA. aeslampo@med.umich.edu.ORCID http://orcid.org/0000-0001-7258-1746
University of Michigan · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to determine whether male patients taking pre-operative selective alpha-1 adrenergic blocking agents have a lower likelihood of developing post-operative urinary retention (POUR) and a shorter length of hospitalization following lower extremity arthroplasty.

methodsA retrospective cohort study was conducted of patients who underwent primary or revision total hip or knee arthroplasty, or unicompartmental knee arthroplasty at an academic institution from January 2002 to May 2014. A cohort of male patients aged 35 and older who were taking a selective alpha-1 blocker prior to surgery (N = 229) were compared with a control group (N = 330) not taking one of these medications. Propensity score-matched logistic regression was performed to isolate the effect of taking a selective alpha-1 blocker on POUR.

resultsWhen evaluating for the outcome of POUR while controlling for age, hypertension, benign prostatic hyperplasia, urinary tract infections, type of anaesthesia, and procedure, those patients taking an alpha-1 blocker had a 12.1% decreased relative risk (95% CI 3.4 to 20.8%; p = 0.007) of developing POUR compared with patients not taking these medications. Mean length of stay was 3.8 days (95% CI 3.6 to 4.1) in the cohort taking selective alpha-1 blockers compared with 4.7 days (95% CI 4.4 to 4.9) for the control cohort.

conclusionsAfter controlling for known risk factors for the development of POUR, the use of selective alpha-1 blockers pre-operatively reduces the risk of developing urinary retention after lower extremity arthroplasty and is associated with a 1-day decreased length of stay.

Indexed as

Adrenergic alpha-1 Receptor AntagonistsAgedArthroplasty, ReplacementFemaleHumansLower ExtremityMaleMiddle AgedPropensity ScoreRetrospective StudiesRisk FactorsUrinary RetentionAdrenergic alpha-1 Receptor AntagonistsAlpha blockerArthroplastyHipKneePost-operativeUrinary retention

Identifiers

PMID31641804
OpenAlexW2981799870

What OpenQuestion holds

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Read underepoch 390

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.