Abstract

Background

Contrast-enhanced transcranial duplex (c-TCD) might be more sensitive than transesophageal echo (TEE) for detection of right to left shunting (RLS), which misses some cases with substantial RLS and might be valuable for prediction of recurrent stroke or transient ischemic attack in patients with PFO. Our aim is to detect sensitivity and specificity of contrast-enhanced TCD in detection of RLS among stroke patients with patent foramen ovale (PFO) in comparison to TEE.

Methods

TEE and contrast-enhanced TCD for cryptogenic stroke patients with PFO were done to detect right to left shunting.

Results

On testing characteristics of TCD in detecting RLS compared to the gold standard of TEE, TCD sensitivity was 85.7%, specificity was 100%, negative predictive value was 96.55%, and positive predictive value was 100%.

Conclusion

We concluded that PFO is considered an important hidden etiology for ischemic stroke. Contrast-enhanced TCD is considered sensitive method for detection of right to left shunting among PFO patients.

Details

Title
Right to left shunting detection by contrast-enhanced transcranial color-coded duplex among patients with cryptogenic stroke
Author
Mohamed Samia Ashour 1 ; Saleh Mohamed Ayman 2 ; ELKhawas, Hala Mahmoud 1 ; ElHadidi Eman Saleh 3 ; Ahmed, ElSadek 4 ; Soliman, Noha Lotfy 1 

 Ain Shams University, Neurology Department, Cairo, Egypt (GRID:grid.7269.a) (ISNI:0000 0004 0621 1570) 
 Ain Shams University, Cardiology Department, Cairo, Egypt (GRID:grid.7269.a) (ISNI:0000 0004 0621 1570) 
 Ain Shams University, Clinical Pathology Department, Cairo, Egypt (GRID:grid.7269.a) (ISNI:0000 0004 0621 1570) 
 Ain Shams University, Cairo, Egypt (GRID:grid.7269.a) (ISNI:0000 0004 0621 1570) 
Publication year
2021
Publication date
Feb 2021
Publisher
Springer Nature B.V.
ISSN
11101083
e-ISSN
16878329
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2489438354
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.