Analysis of the correlation between the anatomical features of patent foramen ovale and right to left shunt
10.3969/j.issn.1673-9701.2024.09.016
- VernacularTitle:卵圆孔未闭解剖学特征与右向左分流的相关分析
- Author:
Yingying XU
1
;
Yan SONG
1
;
Hailan LIU
1
;
Tingting LIU
1
;
Yinghui CHEN
1
;
Yanlin HE
1
Author Information
1. Department of Ultrasound, the First Hospital of Nanchang, Nanchang 330000, Jiangxi, China
- Publication Type:Journal Article
- Keywords:
Patent foramen ovale;
Anatomical morphology;
Right to left shunt;
Transesophageal echocardiography;
Contrast-enhanced transthoracic echocardiography
- From:
China Modern Doctor
2024;62(9):66-70
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the correlation between the anatomical structure of patent foramen ovale(PFO)observed by transesophageal echocardiography(TEE)and the right to left shunt(RLS)grade of contrast-enhanced transthoracic echocardiography(c-TTE).Methods Ninety cases in which the presence of PFO was suggested by TEE examination as a diagnostic criterion from November 2021 to December 2022 in the First Hospital of Nanchang were retrospectively analysed.According to the c-TTE results of patients,the RLS was divided into 4 levels,and the correlation between PFO structural characteristics and RLS grading was analyzed.Results There was a positive correlation between PFO diameter size and RLS grading in resting state(r=0.381,P<0.05);The PFO diameter of patients with hypermobile interatrial septum(HIS)was larger and the difference was statistically significant(P<0.05);The PFO diameter of patients with persistent RLS was larger than that of excited phase patients,and the difference was statistically significant(P<0.05);There was no significant difference in RLS shunt degree between patients with long tunnel and those without long tunnel;There was no significant difference in RLS grade and PFO diameter size under Valsalva state.Conclusion Research has shown that certain anatomical structures of PFO interact with RLS grading,and PFO anatomical structures can also interact with each other(the opening diameter of the foramen ovale with HIS is larger);At the same time,TEE can clearly show the morphological characteristics of PFO and predict the degree of RLS,so as to further evaluate the possibility of ischemic stroke in patients with PFO,and provide more evidence for the indications for foramen ovale closure.
