Evidence map›Paper›PMID 41257644›Full record

SynthesisBMC anesthesiology2025

The effects of preoperative carbohydrate loading on postoperative outcomes in neurosurgery: a systematic review and meta-analysis.

Deniz Şanlı, Gamze Ağartıoğlu Kundakçı, Kaan Katırcıoğlu, Alaettin Yurt, Emrah Akçay

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in BMC anesthesiology, 2025. 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
–field-weighted citation impact
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.

  1. 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

5 authors.

Deniz ŞanlıDepartment of Surgical Nursing, İzmir Katip Çelebi University, İzmir, Türkiye. deniz.sanli@ikc.edu.tr.
Gamze Ağartıoğlu KundakçıDepartment of Community Health Nursing, İzmir Katip Çelebi University, İzmir, Türkiye.
Kaan KatırcıoğluDepartment of Anesthesiology and Reanimation, İzmir Tınaztepe University, İzmir, Türkiye.
Alaettin YurtDepartment of Neurosurgery, İzmir Tınaztepe University, İzmir, Türkiye.
Emrah AkçayDepartment of Neurosurgery, İzmir Tınaztepe University, İzmir, Türkiye.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreoperative carbohydrate loading is a crucial component of ERAS protocols. However, its effectiveness has not previously been evaluated in neurosurgery. This systematic review and meta-analysis aimed to assess the postoperative effectiveness of preoperative carbohydrate loading in neurosurgery.

methodsThe EBSCOhost, PubMed, Scopus, Ovid LWW Total Access, Web of Science, and Cochrane Central Register of Controlled Trials databases were searched up to November 2024. Randomized and nonrandomized controlled trials involving patients aged 18 and above who underwent any type of elective neurosurgery and received any form of preoperative oral carbohydrate beverage were included. The primary outcomes were total and postoperative length of hospital stay (LOS). The secondary outcomes were 30-day readmission, total cost of hospitalization, ambulation on postoperative day (POD) 1, oral intake time, pain, postoperative nausea and vomiting (PONV), and complications. The methodological quality and risk of bias of the selected studies were assessed. Review Manager 5.4 software and Comprehensive Meta-Analysis v4 software were used for the statistical analyses.

resultsA total of nine studies involving 1,299 patients were included in the assessment of total hospital LOS, and six studies involving 761 patients were included in the examination of postoperative hospital LOS. The total hospital LOS (MD = -1.75 days, 95% CI: -2.78 to -0.73, p = 0.0008) and postoperative hospital LOS (MD = -3.40 days, 95% CI: -4.80 to -2.00, p < 0.00001) were significantly shorter in the intervention group. In addition, the intervention group had a significantly higher rate of ambulation on POD 1 (OR = 12.84, 95% CI: 2.85-57.77, p = 0.0009), whereas the rates of pain (OR = 0.18, 95% CI: 0.13-0.26, p < 0.00001) and PONV (OR = 0.37, 95% CI: 0.25-0.53, p < 0.00001) decreased. The results regarding the total cost of hospitalization, oral intake time, and respiratory system complications should be interpreted with caution.

conclusionPreoperative carbohydrate loading is effective in improving postoperative patient outcomes during neurosurgery. It is recommended that institutions support preoperative carbohydrate loading by establishing guideline-based written protocols and integrating it with other evidence-based strategies to enhance surgical outcomes.

trial registrationRegistration number International prospective register of systematic reviews (PROSPERO): CRD42024577131.

Indexed as

Diet, Carbohydrate LoadingNeurosurgical ProceduresPreoperative CareHumansLength of StayPostoperative ComplicationsPostoperative Nausea and VomitingMeta-analysisNeurosurgeryPostoperative outcomesPreoperative carbohydrate loadingSystematic review

Identifiers

PMID41257644
PMCPMC12628532

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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.