Evidence map›Paper›PMID 33472418›Full record

ArticleGlobal spine journal2022

Spine Surgery and Preoperative Hemoglobin, Hematocrit, and Hemoglobin A1c: A Systematic Review.

Krishna V Suresh, Kevin Wang, Ishaan Sethi, Bo Zhang, Adam Margalit, Varun Puvanesarajah, Amit Jain

Open access · goldAbstract read
In one paragraph

Article in Global spine journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

13 citing papers in PubMed, 24 citations in OpenAlex.

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  9. Editors' Commentary:International journal of spine surgery · 2022
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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

7 authors at 1 institution in 1 country.

Krishna V SureshDepartment of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.ORCID https://orcid.org/0000-0002-1785-8797
Kevin WangDepartment of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Ishaan SethiDepartment of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Bo ZhangDepartment of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Adam MargalitDepartment of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Varun PuvanesarajahDepartment of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Amit JainDepartment of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.ORCID https://orcid.org/0000-0002-9983-3365
Johns Hopkins University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designSystematic review.

objectivesSynthesize previous studies evaluating clinical utility of preoperative Hb/Hct and HbA1c in patients undergoing common spinal procedures: anterior cervical discectomy and fusion (ACDF), posterior cervical fusion (PCF), posterior lumbar fusion (PLF), and lumbar decompression (LD).

methodsWe queried PubMed, Embase, Cochrane Library, and Web of Science for literature on preoperative Hb/Hct and HbA1c and post-operative outcomes in adult patients undergoing ACDF, PCF, PLF, or LD surgeries.

resultsTotal of 4,307 publications were assessed. Twenty-one articles met inclusion criteria. PCF AND ACDF: Decreased preoperative Hb/Hct were significant predictors of increased postoperative morbidity, including return to operating room, pulmonary complications, transfusions, and increased length of stay (LOS). For increased HbA1c, there was significant increase in risk of postoperative infection and cost of hospital stay. PLF: Decreased Hb/Hct was reported to be associated with increased risk of postoperative cardiac events, blood transfusion, and increased LOS. Elevated HbA1c was associated with increased risk of infection as well as higher visual analogue scores (VAS) and Oswestry disability index (ODI) scores. LD: LOS and total episode of care cost were increased in patients with preoperative HbA1c elevation.

conclusionIn adult patients undergoing spine surgery, preoperative Hb/Hct are clinically useful predictors for postoperative complications, transfusion rates, and LOS, and HbA1c is predictive for postoperative infection and functional outcomes. Using Hct values <35-38% and HbA1c >6.5%-6.9% for identifying patients at higher risk of postoperative complications is most supported by the literature. We recommend obtaining these labs as part of routine pre-operative risk stratification. LEVEL OF EVIDENCE: III.

Indexed as

hematocrithemoglobinhemoglobin A1cspine surgery post-operative complicationssystematic review

Identifiers

PMID33472418
PMCPMC8965292
OpenAlexW3121862423

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.