Evidence map›Paper›PMID 32171932›Full record

ArticleWorld neurosurgery2020

Costs and Complications Associated With Resection of Supratentorial Tumors With and Without the Operative Microscope in the United States.

Yi Zhang, Michael Zhang, Matthew Lin, Melanie Hayden Gephart, Anand Veeravagu, John K Ratliff, Gordon Li

Abstract read
In one paragraph

Article in World neurosurgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
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.

Yi ZhangDepartment of Neurosurgery, Stanford University School of Medicine, Stanford, California. Electronic address: yizhang9@stanford.edu.
Michael ZhangDepartment of Neurosurgery, Stanford University School of Medicine, Stanford, California.
Matthew LinDepartment of Neurosurgery, Stanford University School of Medicine, Stanford, California.
Melanie Hayden GephartDepartment of Neurosurgery, Stanford University School of Medicine, Stanford, California.
Anand VeeravaguDepartment of Neurosurgery, Stanford University School of Medicine, Stanford, California.
John K RatliffDepartment of Neurosurgery, Stanford University School of Medicine, Stanford, California.
Gordon LiDepartment of Neurosurgery, Stanford University School of Medicine, Stanford, California.

Funding

STANFORD CANCER IMAGING TRAINING (SCIT) PROGRAMT32CA009695 · NCI · STANFORD UNIVERSITY · PI BRUCE L DANIEL, Jeremy Dahl · 1993 to 2026
$7.7M
NCI NIH HHS T32 CA009695
6 · The paper itself

Abstract

backgroundThe operative microscope, a commonly used tool in neurosurgery, is critical in many supratentorial tumor cases. However, use of operating microscope for supratentorial tumor varies by surgeon.

objectivesTo assess complication rates, readmissions, and costs associated with operative microscope use in supratentorial resections.

methodsA retrospective analysis was conducted using a national administrative database to identify patients with glioma or brain metastases who underwent supratentorial resection between 2007 and 2016. Univariate and multivariate analyses were used to assess 30-day complications, readmissions, and costs between patients who underwent resection with and without use of microscope.

resultsThe cohort included 12,058 glioma patients and 5433 metastasis patients. Rates of microscope use varied by state from 19.0% to 68.6%. Microscope use was associated with $5228.90 in additional costs of index hospitalization among glioma patients (P <0.001), and $2824.00 among metastasis patients (P <0.001). Rates of intraoperative cerebral edema were lower among the microscope cohort than among the nonmicroscope cohort (P <0.027). Microscope use was associated with a slight reduction in 30-day rates of neurological complications (14.7% vs. 16.7%, P = 0.048), specifically in nonspecific cerebrovascular complications. There were no differences in rates of other complications, readmissions, or 30-day postoperative costs.

conclusionsUse of operative microscope for supratentorial resections varies by state and is associated with higher cost of surgery. Microscope use may be associated with lower rates of intraoperative cerebral edema and some cerebrovascular complications, but is not associated with significant differences in other complications, readmissions, or 30-day costs.

Indexed as

AdolescentAdultAgedAged, 80 and overCerebrovascular DisordersCohort StudiesCosts and Cost AnalysisFemaleGliomaHumansMaleMicroscopyMicrosurgeryMiddle AgedNeoplasm MetastasisNeurosurgical ProceduresBrain metastasisGliomaOperative microscopeSupratentorial resection

Identifiers

PMID32171932
PMCPMC9288831

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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.