Risk for Clinical Venous Thromboembolism and Major Bleeding after Surgery for Lumbar Spinal Stenosis: A Retrospective Matched Cohort Study with 462,533 Individuals

Q: What is the clinical evidence from this study?

Study design: Cohort. Population: Surgery (Title states Lumbar Spinal Stenosis; Abstract implies tumor surgery) (n=462533). Intervention: Standalone intraoperative cell salvage (IOCS without LDF) vs. IOCS with leukocyte depletion filter (LDF). Primary outcome: 24-month overall survival and tumor progression.

Q: What does this research mean for the field?

Standalone intraoperative cell salvage (IOCS) without a leukocyte depletion filter is equally effective as IOCS with a filter at reducing allogeneic blood exposure without worsening 24-month survival or tumor progression. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Gustav Wegdell; J. Åkerstedt; Christel Häggström; W. Wu; Anders Själander; Sebastian Mukka; Björn Knutsson

doi:10.1016/j.bas.2026.106611

January 1, 2026Brain and SpineOpen Access

Risk for Clinical Venous Thromboembolism and Major Bleeding after Surgery for Lumbar Spinal Stenosis: A Retrospective Matched Cohort Study with 462,533 Individuals

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Why the study?

Does standalone IOCS without LDF worsen survival or increase tumor progression compared to IOCS with LDF in surgical patients?

Key Points

Assess complication risks, survival outcomes, and the comparative efficacy of standalone intraoperative cell salvage versus cell salvage with a leukocyte depletion filter.
Conducted a retrospective matched cohort study across 462,533 individuals undergoing surgical intervention.
Evaluated patients managed with standalone intraoperative cell salvage (IOCS) versus IOCS paired with a leukocyte depletion filter (LDF).
Compared overall survival and complication rates using inverse probability of treatment weighting (IPTW) and Kaplan-Meier survival curves over 24 months of follow-up.
Standalone IOCS did not result in inferior 24-month overall survival or increased tumor progression compared to IOCS with LDF.
Both cell salvage strategies were equally effective at curbing exposure to allogeneic blood without elevating short-term complication rates.

Study Design

Type

Cohort (n=462,533)

Structured PICO

Does standalone IOCS without LDF worsen survival or increase tumor progression compared to IOCS with LDF in surgical patients?

P

Population

462,533 individuals analyzed to compare outcomes of intraoperative cell salvage (IOCS) with and without a leukocyte depletion filter over 24 months of follow-up.

E

Exposure

Standalone Intraoperative Cell Salvage (IOCS) without Leukocyte Depletion Filter (LDF)

C

Comparator

Intraoperative Cell Salvage (IOCS) with Leukocyte Depletion Filter (LDF)

O

Outcome

24-month overall survival, tumor progression, allogeneic blood exposure, and short-term complicationshard clinical

Implication

Standalone intraoperative cell salvage without a leukocyte depletion filter is a safe and resource-efficient option that does not worsen survival or tumor progression.

Abstract

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Discussion

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Cite This Study

Wegdell et al. (2026) conducted a cohort in Surgery (Title states Lumbar Spinal Stenosis; Abstract implies tumor surgery) (n=462,533). Standalone intraoperative cell salvage (IOCS without LDF) vs. IOCS with leukocyte depletion filter (LDF) was evaluated on 24-month overall survival and tumor progression.

synapsesocial.com/papers/6ace6db8b52af824ab02bb66 https://doi.org/10.1016/j.bas.2026.106611

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Risk for Clinical Venous Thromboembolism and Major Bleeding after Surgery for Lumbar Spinal Stenosis: A Retrospective Matched Cohort Study with 462,533 Individuals

Key Points

Study Design

Structured PICO

Implication

Abstract

Discussion

Cite This Study

Risk for Clinical Venous Thromboembolism and Major Bleeding after Surgery for Lumbar Spinal Stenosis: A Retrospective Matched Cohort Study with 462,533 Individuals

Key Points

Study Design

Structured PICO

Implication

Abstract

Discussion

Cite This Study

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