Evidence map›Paper›PMID 41340000›Full record

ArticleActa neurochirurgica2025

Nighttime surgery increases complication risk in chronic subdural hematoma: a population-based cohort study.

Sanna Clementsson, Ali Buwaider, Jiri Bartek, Alexander Fletcher-Sandersjöö

Abstract read
In one paragraph

Article in Acta neurochirurgica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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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

2 citing papers in PubMed.

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4 · The record

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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

4 authors.

Sanna ClementssonDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden. sanna.clementsson@stud.ki.se.
Ali BuwaiderDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Jiri BartekDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Alexander Fletcher-SandersjööDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSurgeries performed at night may carry higher risk due to provider fatigue and reduced staffing, but data from neurosurgical populations are limited. We evaluated whether nighttime evacuation of chronic subdural hematoma (CSDH) was associated with increased complications or recurrence.

methodsWe conducted a retrospective cohort study of adults undergoing CSDH surgery at a tertiary neurosurgical center between 2006 and 2023. The primary exposure was nighttime surgery, defined by procedure start time. Primary outcomes were moderate-to-severe complications (Landriel-Ibáñez grade II-IV within 30 days) and CSDH recurrence (reoperation within 6 months). Multivariable logistic regression was used to adjust for confounders.

resultsOf 2860 patients, 709 (25%) underwent nighttime surgery. Nighttime surgery was independently associated with an increased risk of moderate-to-severe complications (OR 1.58, 95% CI 1.04-2.37; p = 0.028). This risk peaked during the final hours of the night shift. Although CSDH recurrence was more common after nighttime surgery in unadjusted analysis (13% vs. 10%), this difference was not significant after confounder adjustment.

conclusionNighttime surgery for CSDH was associated with an increased risk of moderate-to-severe complications. When feasible, surgery should be performed during daytime hours.

Indexed as

Hematoma, Subdural, ChronicNeurosurgical ProceduresPostoperative ComplicationsAdultAgedAged, 80 and overCohort StudiesFemaleHumansMaleMiddle AgedRecurrenceRetrospective StudiesRisk FactorsAdverse eventsChronic subdural hematomaNeurosurgeryNighttime surgeryPostoperative outcomesSurgery timing

Identifiers

PMID41340000
PMCPMC12678545

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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.