Evidence map›Paper›PMID 34476141›Full record

ArticleCureus2021

Could Interscalene Block Possibly be Protective Against Cerebral Ischemia During Shoulder Surgery in a Beach Chair Position?

Sami Kaan Coşarcan, Yavuz Gurkan, Alper Tunga Doğan, Özgür Koyuncu, Ömür Erçelen

Registry-linked trialAbstract read
In one paragraph

Article in Cureus, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07398352 (Comparison Of The Effect Of Interscalene Block Alone And The Combination Of Interscalene Block And Superficial Cervical Block On Brain Oxygenation And Carotid Artery Diameter In Shoulder Surgery), which is not on this 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

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.

NCT07398352 narecruitingnot on this mapstarted 2026, after this paper: background citation

Comparison Of The Effect Of Interscalene Block Alone And The Combination Of Interscalene Block And Superficial Cervical Block On Brain Oxygenation And Carotid Artery Diameter In Shoulder Surgery

TypeinterventionalSponsorSanliurfa Mehmet Akif Inan Education and Research HospitalRan2026 to 2026Enrolled70ConditionsInterscalene Block, Superficial Cervical Block, Cerebral Perfusion, Shoulder SurgeriesArmsInterscalene brachial plexus block, Interscalene brachial plexus block and superficial cervical plexus block
3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Review
  2. 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

5 authors.

Sami Kaan CoşarcanAnesthesiology, VKV American Hospital, Istanbul, TUR.
Yavuz GurkanAnesthesiology, Koç University, İstanbul, TUR.
Alper Tunga DoğanAnesthesiology, VKV American Hospital, Istanbul, TUR.
Özgür KoyuncuOrthopaedics and Traumatology, VKV American Hospital, Istanbul, TUR.
Ömür ErçelenAnesthesiology, VKV American Hospital, Istanbul, TUR.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction Arthroscopic shoulder surgeries are usually performed in a sitting position. The sitting position is known to cause physiological changes related to cardiovascular adaptation. Interscalene nerve blocks (ISB) are the most commonly used techniques and are considered gold standard regional anesthesia methods for shoulder surgeries. Cerebral vessels located around sympathetic ganglia provide sympathetic system integrity. This local anesthetic spreading during ISB could be a side effect or provide a protective effect on cerebral ischemia. Our study aimed to investigate the cerebral protective effect of the ISB in arthroscopic shoulder surgeries in a sitting position. Material and methods After the approval of Koç University Clinical Research Ethics Committee (2020.020.IRB1.011), records of patients between January and December 2019 with shoulder arthroscopy at the Vehbi Koç Foundation (VKV) American hospital were retrospectively reviewed. Records of the hemodynamic response, INVOS

Indexed as

beach-chair positioncerebral blood flowcerebral protective effectinterscalene brachial plexus blockshoulder arthroscopyultrasound guided regional anesthesia

Identifiers

PMID34476141
PMCPMC8404480

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Registered trials

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.