Evidence map›Paper›PMID 31037364›Full record

ArticleClinical neuroradiology2020

Transfemoral Approach for Intraoperative Angiography in the Prone or Three-quarter Prone Position : A Revisited Protocol for Intracranial Arteriovenous Malformation and Fistula Surgery.

Chi Wang, Szu-Kai Hsu, Chih-Ju Chang, Ming-Hong Chen, Chih-Ta Huang, Jing-Shan Huang, I-Chang Su

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Article in Clinical neuroradiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 40% of its field
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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Chi WangDivision of Neurosurgery, Department of Surgery, Taipei Cathay General Hospital, Taipei, Taiwan, Republic of China.
Szu-Kai HsuDivision of Neurosurgery, Department of Surgery, Taipei Cathay General Hospital, Taipei, Taiwan, Republic of China.
Chih-Ju ChangDivision of Neurosurgery, Department of Surgery, Taipei Cathay General Hospital, Taipei, Taiwan, Republic of China.
Ming-Hong ChenDivision of Neurosurgery, Department of Surgery, Taipei Cathay General Hospital, Taipei, Taiwan, Republic of China.
Chih-Ta HuangDivision of Neurosurgery, Department of Surgery, Taipei Cathay General Hospital, Taipei, Taiwan, Republic of China.
Jing-Shan HuangDivision of Neurosurgery, Department of Surgery, Taipei Cathay General Hospital, Taipei, Taiwan, Republic of China.
I-Chang SuDivision of Neurosurgery, Department of Surgery, Taipei Cathay General Hospital, Taipei, Taiwan, Republic of China. ichangsu@gmail.com.ORCID http://orcid.org/0000-0003-3604-7268
Cathay General Hospital · TWFu Jen Catholic University · TWTzu Hui Institute of Technology · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAmong the different arterial accesses, the femoral access is the main approach for intraoperative angiography (IOA) performed in a prone position. Without a standardized protocol, however, the application of prone IOAs in intracranial arteriovenous malformation (AVM) or arteriovenous fistula (AVF) surgery remains limited by its procedural complexity. This study describes the detailed protocol for prone IOA through a transfemoral approach and highlights several refinements in preparing this procedure.

methodsThis study retrospectively reviewed the intracranial or high cervical AVM/AVF surgical cases in which both resection and IOA were performed in the prone or three-quarter prone position. Extended femoral sheath approaches and radiolucent head clamps were used in all cases. An aneurysm clip, serving as a localization landmark in IOA, was routinely placed within the surgical field. The IOA imaging, clinical impact of IOA, and complications related to the procedure were recorded.

resultsA total of six AVM and three AVF cases, operated on in the prone (n = 7) or three-quarter prone (n = 2) positions, were included. Multiple vessel injections were required in 66.7% of cases, and IOA was successfully performed in every intended vessel. All IOA images were adequate for interpretation, except for two cases in which the non-radiolucent component of the head clamp obscured the region of interest in the lateral views. Incomplete occlusion was identified in two patients, and the aneurysm clip provided precise guidance in localizing the residual nidus. Final IOA confirmed complete lesion removal in all cases, and there were no IOA-related complications.

conclusionThree key steps in setting-up a prone IOA procedure for intracranial AVM/AVF surgery are proposed: (1) utilize an extended femoral sheath approach, (2) establish a localization landmark with an aneurysm clip and (3) avoid possible image interference from the non-radiolucent component of the head clamp.

Indexed as

AdultAgedArteriovenous FistulaCerebral AngiographyFemaleHumansIntracranial Arteriovenous MalformationsIntraoperative ComplicationsMaleMiddle AgedMonitoring, IntraoperativePatient PositioningProne PositionRetrospective StudiesYoung AdultArteriovenous fistulaArteriovenous malformationHybrid operating roomIntraoperative localizationNon-supine position

Identifiers

PMID31037364
OpenAlexW2942951383

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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.