Evidence map›Paper›PMID 41078846›Full record

ArticleLaryngoscope investigative otolaryngology2025

Surgical Experience and Validation of the "Bow Tie" Trilayer Graft Technique for Closure of Anterior Skull Base Defects.

Jacquelyn K Callander, Taylor S Erickson, Hasan Abdulbaki, Philip V Theodosopoulos, Manish K Aghi, Ezequiel D Goldschmidt, Ivan H El-Sayed, Jose G Gurrola

Abstract read
In one paragraph

Article in Laryngoscope investigative otolaryngology, 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

8 authors.

Jacquelyn K CallanderDepartment of Otolaryngology-Head and Neck Surgery University of California, San Francisco San Francisco California USA.ORCID https://orcid.org/0000-0002-7266-9868
Taylor S EricksonDepartment of Otolaryngology-Head and Neck Surgery University of California, San Francisco San Francisco California USA.ORCID https://orcid.org/0000-0001-5289-4251
Hasan AbdulbakiUniversity of California San Francisco School of Medicine San Francisco California USA.ORCID https://orcid.org/0009-0006-8504-4847
Philip V TheodosopoulosDepartment of Neurological Surgery University of California, San Francisco San Francisco California USA.
Manish K AghiDepartment of Neurological Surgery University of California, San Francisco San Francisco California USA.
Ezequiel D GoldschmidtDepartment of Neurological Surgery University of California, San Francisco San Francisco California USA.
Ivan H El-SayedDepartment of Otolaryngology-Head and Neck Surgery University of California, San Francisco San Francisco California USA.ORCID https://orcid.org/0000-0001-8121-3726
Jose G GurrolaDepartment of Otolaryngology-Head and Neck Surgery University of California, San Francisco San Francisco California USA.ORCID https://orcid.org/0000-0001-6801-5768

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: Multiple reconstruction techniques exist to repair defects arising from expanded endonasal approach (EEA) surgeries targeting anterior skull base tumors. These repairs aim to minimize post-operative complications such as cerebrospinal fluid (CSF) leak. In 2022, our group described the "Bow tie" trilayer graft, a repair method that incorporates two layers of a collagen matrix graft stitched to a fat graft. The initial data demonstrated a reduction in the rate of CSF leaks following the adoption of this method. This study evaluates the surgical practice of a single surgeon with access to the trilayer technique and the post-operative outcomes. Methods: Retrospective chart review encompassing all EEAs to anterior skull base tumors performed by a single otolaryngologist (JGG) from January 2019 to September 2024 at a tertiary care center. Results: Of 250 cases meeting inclusion criteria, 42 (16.8%) involved bow tie graft reconstruction. Postoperative CSF leaks occurred in 3 subjects (1.2%), with none of these cases involving bow tie grafts. Trilayer grafts were used more frequently in revision cases ( Conclusion: The trilayer graft is an efficient and useful tool in the armamentarium of an anterior skull base surgeon. This technique may decrease rates of postoperative CSF leak with limited additional morbidity. Larger multicenter studies are warranted to validate this potential benefit given the relative rarity of this complication. Level of Evidence: 4.

Indexed as

cerebrospinal fluid leakendoscopic surgerypostoperative complicationsskull base neoplasmsskull base surgery

Identifiers

PMID41078846
PMCPMC12514729

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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.